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Cisco Systems OL-10426-01 User's Information Guide

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1. mynet Working directory y nmt Read mynet Unless otherwise specified in the specification file Converting NMT Configuration Files into WANDL Files 6044 Use the Import and Export selections in the File menu to read and write WANDL files To write to a sub directory specify the subdirectory and a plan name To read a file select that file s plan name N Note To read and write WANDL files in the UNIX CLI use the nmt2tpi and tpiZnmt commands H Cisco WAN Modeling Tools Guide 0L 10426 01 Rev A0 Chapter 10 WANDL Third Party Interface Translating Between NMT and WANDL Formats W Use the following procedure to convert NMT configuration cnf files into files that can be read by WANDL software using the UNIX command line interface Step 1 Start the NMT and verify that you have a readable configuration file Step2 Run the TPI command that creates a directory that holds a set of WANDL network design files and specify the extension for these files nmt2tpi infile NT NIM id input dir il loc filename of WANDL ext name D H id input dir Specify a different directory than the current directory as the source of the cnf file il loc filename Specify a specific filename for an loc file of WANDL ext name Specify a specific WANDL file extension plan name od WANDL dir name Specify the sub directory for the WANDL files extens
2. 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide E Chapter4 Configuration Tables and Fields E Groups and Network Table Groups and Network Table The Groups and Network Table defense the PNNI Peer groups their parameters and their relationships In WANDL this data is translated to the HPNNI file S Note Inthe MS Excel and DBF interface this table is called Groups Table 4 15 Groups and Network Table Field Defaults Notes Description and Comments DBF CET TPI PG Name Blank M PNNI Peer Group name NMT requires this name NAME have the same format as a site table name Parent PG Blank O Peer Group name of the parent group Leave blank if PARENT the group has no parent Note that parents must be defined earlier in the table than their children PNNI Y M A YIN flag indicating if this groups is a PNNI group or just a logical group If Y for PNNI group then this label should appear in the site table for PNNI groups and all data fields apply If N for a logical group then this group should appear in the network field in the site table and only the mapX and mapY fields are relevant Level 0 O Peer Group Level The level of the PNNI network LEVEL hierarchy this peer group belongs too A parent must always have a smaller numeric value than their children Complex N O Enter Y if the peer group has to be aggregated in the CMPLX next higher level of hierarchy using complex node represe
3. MH Links Table Field Defaults Table 4 3 Link Table continued Notes Description and Comments DBF CET TPI Keep 1 E Number of existing links If the Keep field is 0 the link will be ignored in the route command and considered for the optimize commands KEEP Since slot port are included this field is always set to 1 Used Shows the size of the node after the NMT builds a network using the optimize command n a Reserve 600 600 Trunk reserve Estimate of the overhead on each link needed for collecting network statistics and other administrative overhead The reserve size is subtracted from the total link capacity prior to calculating routes The units of statistical reserve can be in ATM cells CPs or Fastpackets pps RESERVEI RESERVE2 p Defaults applied to links between BPX switches and tiered network feeders Rcv Rate 0 0 Receive rate Largest number of pps or cps that the node at site 1 can receive over a link from site 2 The second field is the largest number of pps or cps that the node at site 2 can receive over a link from site 1 Only used for broadband links T3 E3 at IGX IPX sites or BXM links The units are pps Or cps respectively If you enter O here the default NMT will set this field to the highest value possible for the card Rcv Rate supported on the AIT ALM BTM and BXM card BB MAXI BB MAX2 x
4. Return to the parent directory Convert the WANDL files into an NMT cnf format by entering tpi2nmt WANDL directory BPXT3 card NA NIM od output directory if cnf of cnf D H WANDL directory The name of the directory containing the WANDL data files as well as the extension used by the WANDL data files typically the network name This name is assigned to the output cnf file and loc file The loc file has system coordinates For more information on loc files see the section H Display help later in this chapter NOUXM New links will not use the uxm card NIM The program should not display informational messages only warnings errors and those messages that may require user action id output directory Specify a directory different from the default as the destination of the cnf file if cnf Specify a specific WANDL file extension name for input of cnf Specify a specific name for the cnf output ol loc Specify a specific name for the loc output file over Overwrites output files distd Use the link distance as the WANDL Distance default in cost distm Use the link distance as the WANDL Distance default in monthly cost disti Use the link distance as the WANDL Distance default in install cost D Display steps and debugging information H Display help Cisco WAN Modeling Tools Guide lt 11 SpreadSheet Interface This chapter describes the SpreadShe
5. Displays summaries of the current network costs and routing status Displays static load estimates by traffic type for each link in the network Site name connection type for example FRM V35 slot number port number port speed cells or packets per second SUM MIN port load Site name connection type for example SDP V35 slot number port number port speed Connection to from number of connections connection type for example FR 56 path number of hops delay time in msec for voice and NTS connections Displays failed connections and connections that have not been routed Listed by site including part number description quantity cost per site Graphical display of each node s card cage showing front cards and back cards Displays PNNI logical links View or clear the message log You can also view the message log by entering Ctrl W Network topology map 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide B Chapter3 Usingthe NMT E Display Menu Report Menu Use the Report menu to define generate display and save reports The menu contains the following options Define Selects which tables to include in a report Figure 2 5 shows the Define Report window In this window you can specify the contents of the report and also add a report header Enter one of the following options Y includes a report in a report file N do not include a report in the report file
6. Troubleshooting CET W Informix Error 217 Column name of column not found in any table in the query Probable Causes CWM release and the Informix Database are incompatible In other words a new sv has been installed but is not in use Solution Use the swt_rev option on the svp2cet command Symptom Informix Error 564 Cannot sort rows and or Informix Error 407 Error number 0 received from sql exec process The above error s are also combined with a unix error write failed file system is full Probable Causes There is not enough empty space in the tmp partition where informix does its sorting work Solution If there are files called textnnn 0 then space can be recovered by closing the shell tools If this still doesn t work space can be cleared by copying info and files to other partitions then erasing them from tmp Symptom Informix Error 229 Cannot open or create a temporary file and or Informix Error 162 ISAM error BLOB space does not exist Probable Causes The Informix database is full or almost full or the temporary space directory is not writable or full Solution Check that the directory defined by the DBTEMP environment variable is writable by this account If DBTEMP is not defined check the tmp directory The problem could also be that there is no more free disk space in the temporary directory If you have error 162 have TAC increase the user
7. a k Red Redundancy Specifies whether site has redundant components Y site has redundant components N sites does not have redundant components RED VT_Rate amp Type Virtual Trunk Rate Bandwidth of the trunk in cells per second VTs must have VT in media field VT_RATE Traffic Blank Types of traffic allowed on this link If blank all types are allowed TRAFFIC LRd N Link redundancy Y spare trunk is used on redundant link for BPX to IBX IPX links only N spare trunk is not used on redundant link BACKUP Dist Distance between sites in miles or kilometers Must be consistent with the Line Cost table in the Maintenance menu DIST H Cisco WAN Modeling Tools Guide 0L 10426 01 Rev A0 Chapter 4 Configuration Tables and Fields Field Defaults Table 4 3 Link Table continued Notes Description and Comments DBF Links Table MI CET TPI Mo 0 E Cost per month of trunk from Site 1 to Site 2 If blank NMT calculates cost using the Dist field and the data in the Line Cost Table in the Maintenance menu If you enter a value here use zero in the Distance field COST_MO Instl Installation cost of a trunk INSTALL Fdr1ID Feeder 1 ID Part ID for the IMATM trunk on an MGX 8220 edge concentrator FDRIID Fdr2ID Feeder 2 ID Part ID for the IMATM trunk on an MGX 8220 edge
8. Defaul Note Field ts s Description and Comments DBF CET TPI Util 60 60 E Connection utilization percentage for PCT_UTILI Defaults used prior to DFM connections not used if DFM PCT UTIL2 Release 8 5 and for column is N FastPAD The data may be unreliable if it changed after adding a connection BC VIV E H Back card type L4 L8 D R V S El BCI T1 and J1 Use workstation Help or F12 2 k NRE BC2 Heuristic based on ey for choice list observed number of ports used until Release 9 1 FdrlID O E Feeder 1 ID Logical port number for the FDR_IDI1 connection at a 3810 or FastPAD feeder at the local site not used MC3810 feeders not supported Fdr2ID 0 E Feeder 2 ID Logical port number for the FDR ID2 connection at a 3810 or FastPAD feeder MC3810 feeders not at the remote site not used supported FdrBc E H Feeder back card The line interface type FDR_INT1 at the feeder Index 0 O SNMP Connection Index for CWM SNMP INDEX reference for this connection Rt Metr AW M How the connection is routed RT MET ics Cost 0 O Maximum cost allowed for the Autoroute FDR INT2 least cost routing path for this connection DR N O Direct routing Indicates that the DR connection must use the preferred route provided If it cannot use the preferred route the connection should not be routed Preferre O The preferred route of the connection Route is storedin d_Route The first and last routing site are opti
9. FRM 4V AUSM this format can be used also for multi port channelized cards to specify physical port line without specifying logical port Zero indicating no unique port constraint By assigning Hub IDs to the connection endpoints you can put the connection on a particular port Hub IDs can also control port to multiport connections Obsolete Products The sections that follow discuss obsolete products and configurations These sections are included to describe CWM extraction data and migration planning OL 10426 01 Rev AO Cisco WAN Modeling Tools Guide H Chapter4 Configuration Tables and Fields HM Obsolete Products Networks with Access Feeders or Access Concentrators IPX and IGX switches can include devices that do the following tasks e concentrate small connections into large ones e convert normal voice or legacy data connections into Frame Relay connections The NMT supports three access feeders that concentrate or convert data the MC3810 the FastPAD and the Port Concentrator One IGX or IPX node can support up to 64 of these devices Using NMT to model connections that terminate on these access feeders is similar to modeling MGX 8220 feeders for a tiered network MC3810 The NMT supports the MC3810 configured as a feeder to an IGX switch The MC3810 concentrates voice and data connections into Frame Relay connections The NMT configures as many MC3810s as are required to support the traffic
10. Status of the card For manually entering data STAT consider ACTIVE REDUNDANT STANDB Y RESERVE For CWM extracted data the actual state of the card will be listed Fronteard M H Front card residing at this site and slot Note that FTYPE NMT will reserve the slot for cards the model does not yet support VISM for example RedSlot M H Slot supporting redundancy For active cards defines RSLOT the slot of the standby or redundant card for 1 N redundancy For standby or redundant cards it specifies the active card Backcard M H Back card associated with the front card BTYPE Backcard2 M H Secondary back card associated with the front card if BTYPE2 applicable Double height MGX cards can have secondary back cards FwRev M H Frmware revision of the front card Extracted from FFW CWM not used by NMT HwRev M H Hardware revision of the front card Extracted from FHW CWM not used by NMT FC_Serial M H Serial number of the front card Extracted from FSERIAL CWM not used by NMT BC HwRe M H Hardware revision of the back card Extracted from BHW v CWM not used by NMT BC_Serial M H Serial number of the back card Extracted from CWM BSERIAL not used by NMT BC2 HwR M H The hardware revision of the secondary back card BHW2 ev Extracted from CWM not used by NMT BC2 Serial M H The serial number of the secondary back card BSERIAL2 Extracted from CWM not used by NMT
11. The NMT address the following real time issues only delay estimate requirements specified in the CAC The NMT verifies the connections routed in the base state The NMT verifies which connections will re route under any network failure scenario Cisco WAN Modeling Tools Guide Chapter1 Overview of the WAN Modeling Tools Gaps Gaps MI The NMT extracts the network topology and connection parameters from Cisco WAN Manager The NMT handles changes in the CWM DB schema so these changes are invisible to the user CWM coded values are translated to more usable strings and tables are merged so in NMT there is 1 table per network element The NMT translates topology data to and from MS Excel data The NMT tables are translated to DBASE3 format and a MS Excel macro is provide for creating a file of spreadsheets for each table NMT translates the topology data to and from the WANDL format for use by their NCAPS tool PNNI CAC parameters are not as granular as they are in the product For example some parameters are network specific A 10 character node naming limitation is imposed CWM provides translation for node naming The following features are not supported by the NMT XPVCs Voice traffic channel mapping entering the network for VISM VXSM cards IP traffic entering the network for RPM cards LVC resource support for RPM cards Port Partitioning by COS Priority bumping in AutoRoute VXSM card and connections
12. V1 for V 11 or V2 for V 28 in the corresponding Fdr I F field If you leave the field blank the interface defaults to V 35 Hub ID for Site 1 and Site 2 fields The port ID is the slot port ID for an FRP PC card and is a virtual port The virtual port range is from 1 to 44 where ports 1 to 11 are on physical port 1 12 to 22 are on physical port 2 23 to 33 are on port 3 and 34 to 44 are on port 4 Hub IDs can be used to model over subscription port to multiport connections and multiple PCs A hub ID of 0 allows NMT to do design FdrID Feeder ID field Not used Access Ports table Hub ID field Slot is the PC slot and port is the virtual port 1 to 44 Do not use feeder slot or feeder port column Speed field Enter the port speed If not supported it will be rounded up to the nearest supported speed Speeds 9 14 19 and 38 will be respectively interpreted as 9 6 14 4 19 2 and 38 4 If you have an Access Port table entry for a PC port the port speed is determined by the connections assigned to it Cisco WAN Modeling Tools Guide 0L 10426 01 Rev AQ EUN Chapter4 Configuration Tables and Fields MH Tiered Networks Tiered Networks Tiered networks are a special network configuration of Cisco WAN switches A tiered network consists of a BPX or IGX hub node linked to a maximum of 16 IPX IGX nodes or MGX 8220 MGX 8850 edge concentrators designated as feeder nodes A feeder node provides t
13. Keyboard Commands W Figure 3 5 Report Options Network Modeling Tool 8 4 0 Define Report Table Include Table Include Sites Dar Bursty Data Ports Y Links tY Voice amp Data Ports N Network Price ah Access Feeders N Links Load iF BData Links Load N Channel Routes iN Bursty Connections Y Not Routed Conns N Voice Connections Y Parts List iN Data Connections Y Resources N Page Header Report Header E NMT279 8 4 0 gt tmp NMT tutorial model SwSw Release 841 lt F1 gt field help lt Esc gt exit lt F10 gt abort z Maintenance Menu Use the Maintenance menu to revise product costs add optional equipment for reference purposes and provide information about line costs This menu also allows you to read write erase and set the path for maintenance files The menu contains the following options Parts List Displays a list of Cisco Systems WAN part model numbers Line Cost Displays line cost information Read Loads a previously saved maintenance file Write Saves a maintenance file Erase Deletes a maintenance file Change Path Changes the current directory path Help Menu The NMT has several kinds of online help The Help menu provides information about how to use the program and describes many of the menus and menu items in the NMT Quit The Quit item on the NMT Menu Bar is used to close the NMT application When you choose this option a popup window ap
14. Locate the serial number label on your product and record the information before placing a service call Submitting a Service Request Using the online TAC Service Request Tool is the fastest way to open S3 and S4 service requests S3 and S4 service requests are those in which your network is minimally impaired or for which you require product information After you describe your situation the TAC Service Request Tool provides recommended solutions If your issue is not resolved using the recommended resources your service request is assigned to a Cisco TAC engineer The TAC Service Request Tool is located at this URL http www cisco com techsupport servicerequest For S1 or S2 service requests or if you do not have Internet access contact the Cisco TAC by telephone S1 or S2 service requests are those in which your production network is down or severely degraded Cisco TAC engineers are assigned immediately to S1 and S2 service requests to help keep your business operations running smoothly To open a service request by telephone use one of the following numbers Asia Pacific 61 2 8446 7411 Australia 1 800 805 227 EMEA 32 2 704 55 55 USA 1 800 553 2447 For a complete list of Cisco TAC contacts go to this URL http www cisco com techsupport contacts I OL 10426 01 Rev AO Cisco WAN Modeling Tools Guide H Preface Obtaining Additional Publications and Information Definitions of Service Request Sever
15. The NMT generally sets the feeder trunk speed to the minimum speed that can carry the traffic The NMT designs MC3810s automatically when MC3810 connections are added to the Voice Traffic Data Traffic or Bursty Traffic table and the model is based on switch software release versions 8 2 5 to 8 3 9 or 8 5 0 and above Refer to Table 4 21 for information on modeling a network using the MC3810 Table 4 21 MC3810 Configuration Topic Required Settings Comments Setting MC3810 Model Settings table If the NMT default value 920 is Release Make sure that the value of Switch Software Release is set to the release that used NMT will automatically design is to be modeled If that value is one that defaults to MC3810 825 to 839 or MC3810s for all feeder connecuons 850 and above NMT will design MC3810s for any non voice feeder except for pus connection types that connections All other values default to FastPAD for non voice feeder are exclusively for FastPad connections Adding MC3810 data Data Traffic table Each MC3810 data connection must connections Type field Enter the data traffic speed If the speed exceeds 512 Kbps do not PREIS and terminate on a MC3810 use the Data Traffic table use the Bursty Traffic table instead If the switch software release does nor support the MC3810 NMT designs BC Back Card field For each end of the connection enter the back card of FastPADs the FTC FTM card that links the hub IPX IGX switc
16. These contain connection segments that are in the data base but which were not collected because they were not part of an end to end connection SV 7 0 SV 9 1 View the files maybe voice svp maybe data svp maybe frame svp and maybe atm svp If you find the connections try rerunning svp2cet and cet2nmt If this doesn t succeed contact WAN Manager support Symptom Informix Error 862 cannot open file for run Probable Causes cetlink has not been run User is executing CET from a subdirectory CET installation did not execute properly Solution Make sure this directory contains cetbin ls 1 cetbin if cetbin is not there run cetlink See if all required subdirectories and programs are in cetbin If they are not there you must reinstall CET Symptom Informix Error 529 Cannot attach to shared memory Informix Error 123 ISAM error No shared memory Probable Causes Informix DB is not on line Solution 1 Become the Superuser INFORMIX Type ed Type tbmonitor or bin tbmonitor In tbmonitor select mode This will confirm that the database is off line na A vc N Select start up The database is brought from off line to quiescent 6 Select on line This brings the database on line 7 Select exit to exit mode 8 Select exit to exit th monitor 9 Exit informix H Cisco WAN Modeling Tools Guide 0L 10426 01 Rev AO Configuration Extraction Tool Symptom
17. modifying and analyzing integer data Several NMT reports are also available in DBF and XLS For more information see Chapter 12 SpreadSheet Interface Cisco Network Designer CND import tool Loads an NMT into the CND as a project The CND provides low level local configuration of each site on a network and generates graphic displays and a Bill of Materials BOM Cisco WAN Modeling Tools Guide Installing the Cisco WAN Modeling Tools This chapter provides instructions for installing the following Cisco WAN Modeling Tools e the Network Modeling Tool NMT e the Configuration Extraction Tool CET the Third Party Interface TPI Conversion Plug in e the SpreadSheet Interface SSI Conversion Plug in This chapter contains the following sections e System Requirements e Installing the NMT e Upgrading the NMT Software e Starting the NMT e Removing NMT e Installing a Cisco WAN Modeling Tools Sub application e Removing Sub applications e Troubleshooting NMT Installation S Note Check the Cisco WAN Modeling Tools Release Notes for changes in the installation process System Requirements NMT CET TPI and SSI run on Solaris 2 6 or later NMT runs under many configurations including SPARC IPX LX 5 10 20 and Ultra Hardware requirements depend on the size of the model you are creating A typical setup includes e Minimum 16 MB of memory e CD ROM e 535 MB SCSI disk or larger The PC version of NM
18. nor for field used as SV release 8 4 the connection label If no comment field a connection label is generated for WANDL demand file Data Table The Data Table contains topological information about legacy data connections in the network The important fields in the data table are the site ends the type and the BackCard field The type defines the voice compression protocol and the backcard defines the connection type at the customer s premise The The primary CWM source of the Data table is the USER_CONN table The WANDL file for translation is the demand file The Data table fields are described in Table 4 7 Table 4 7 Data Table Defaul Note Field ts s Description and Comments DBF CET TPI Site 1 M H Site name of the owner of a connection SITE1 Master node unavailable until release 8 1 assumed to be Site 1 PortID 0 E Logical slot port number at Site 1 for the 1D1 1 connection You can assign or NMT will assign Site 2 M H Site name of the remote end of a SITE2 connection Cisco WAN Modeling Tools Guide Chapter 4 Configuration Tables and Fields DataTable Mi Table 4 7 Data Table continued Defaul Note Field ts s Description and Comments DBF CET TPI Port ID 0 E Logical slot port number at the remote ID2 2 site for the connection You can assign or NMT will assign Qty 1 M Quantity Number of d
19. 01 Rev A0 Cisco WAN Modeling Tools Guide H Chapter4 Configuration Tables and Fields E Feeders Table 4 19 Tiered Network Configurations with Implicit Feeders continued Topic Required Settings Comments MGX 8220 Feeders Bursty Traffic table By assigning IDs to the ports of the MGX 8220 service Port to Multiport Fdr T D fields Feeder identification fields ID values module cards you can put the connection on a particular must be assigned port ID values can be Feeder IDs can also control port to multiport connections Slot Port for AUSM and CESM cards e g 5 3 this format can be used also for FRSM cards to specify physical port line without specifying logical port Slot Line Port for FRSM card e g 5 2 6 Zero indicating no unique port constraint MGX 8220 Feeders Bursty Traffic table You need to configure a site with multiple MGX 8220 feeders Multiple Feeders ata Hub ID field only if you require connections between the feeders or if you Site need to associate specific connections with specific feeders All connections associated with a specific MGX 8220 should have the same hub ID throughout the i Bursty Traffic table Assign hub IDs to identify the port of the BNI BXM card on the BPX switch that connects to the specific MGX 8220 edge concentrator e g if the feeders are at different locations tis not necessary to use the HUB ID field for the site at the other end of the conne
20. 10 applied Solution Apply patch 10 to CWM Symptom The CET installation says that CWM is not installed and you know that it is installed Probable Causes The NMT version is too old for the CWM version or the CWM is installed in a non standard way with a different DB name Solution Upgrade NMT to a later version that supports that version of CWM Remote CET Extracts If you wish to obtain a CET extract from a CWM or SV Informix database located on another workstation you may not need to install NMT or CET on the remote platform You may be able to issue the svp2cet command on your workstation and return the data from the remote platform to your workstation A remote CET extract is possible only in the following circumstances e You must know the hostname of the remote host You may need to know the IP address of the remote host e Your local host workstation must be able to access the remote host That is you must be able to successfully ping the remote host either by hostname or by IP address from your local host Cisco WAN Modeling Tools Guide 0L 10426 01 Rev AO Chapter9 Configuration Extraction Tool Remote CET Extracts Ml Informix 7 2 or higher must be installed on both your local host and the remote host If CWM is installed on either host you have met the requirement for that host e You must know the password to the svplus user ID at the remote host Not
21. 3 Link Table Field Defaults Notes Description and Comments DBF CET TPI Site 1 M H Name of site at one end of the link SITE1 using a name from Sites table Port ID 1 0 E Logical slot port number at Site 1 for HUBIDI T the connection Enter 0 and NMT assigns Enter n m to specify port slot Site 2 M H Name of site at other end of the link SITE2 i using a name from Sites table Port ID 2 0 E Logical slot port number at Site 2 for HUBID2 i the connection Enter 0 and NMT assigns Enter n m to specify port slot M Z O H Media Media type of trunk M ss IF1 T3 O H Trunk type and capacity The Trunk TRUNK type is the interface used on the trunk Y 1 trunks shown and defines the backcard An optional as T1 and T2 line size can be prepended trunks shown as T3 Until Release 9 1 broadband trunks were determined heuristically based on port speed and card type IF2 blank O H IF2 trunk type is used only if different TRUNK2 from the first in the case of virtual trunks DSO 0 O H DSO field is the number of sub units TRNK_CAP for a DS1 line 4 through 24 are valid for T1 and 4 through 30 are valid for El If the trunk is not a DSI type this field is ignored Trnk_Cd O P H Trunk card The front cards for this TRNK_CAR link D1 TRNK_CAR D2 0L 10426 01 Rev A0 Cisco WAN Modeling Tools Guide Bg Chapter 4 Configuration Tables and Fields
22. BPX switch to provide Private Network to Network Interface PNNI signaling and routing for the establishment of ATM switched virtual circuits SVCs and soft permanent virtual circuits SPVCs over a BPX 8600 wide area network WAN Features supported by the NMT include PNNI Routing resource partitioning and shelf provisioning 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide B Chapter1 Overview of the WAN Modeling Tools E Basic Usage Charter Functionality IGX switch A multi service ATM networking switch that provides interfaces to support legacy and emerging broadband applications It supports ATM technology over subrate narrowband E1 and T1 and broadband E3 and T3 trunks The IGX switch is used as the basis for a leased line campus metropolitan area network MAN and WAN network as an intelligent access device to high speed public digital services such as ATM in a hybrid application using both and as a WAN service switch Generic Node The NMT allows you to create your own node type for an ATM switch or feeder Use the node table to provide the high level specifications for the WAN product Obsolete Equipment The NMT models obsolete equipment that users may encounter in CWM extracts and need to model for upgrade considerations The following obsolete platforms are modeled IPX switch 3810 feeder FastPad feeder Port Concentrator Shelf Feeder Basic Usage Charter Functionality The NMT models the WAN net
23. Delay Variance Note The Model setting PNNI parameters can be adjusted Partitioned AutoRoute PNNI Network If the modeled network has AutoRoute and PNNI connections use the steps in the AutoRoute and PNNI Routing sections above to configure each portion of the network If any links are partitioned the partitions are defined in the Interface table The link Port IDs cross reference the interface table entries If no partitions are specified the NMT will optimize the partition based on the connection S demand Note MPLS partitions can also be specified However the NMT model does not consider traffic on MPLS partitions 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide B Chapter5 NMT Execute Commands BE Fail Analysis Command Fail Analysis Command Selecting Fail Analysis from the Execute menu allows you to create a situation where one or more lines fail You can also generate a situation where the lines are failed one at a time see the Simulate All menu choice By failing a line you can force the NMT to create alternative routes the NMT does this by using the Automatic Routing Management algorithm Using this algorithm the NMT can reveal whether network links have enough extra bandwidth according to values in the configuration to support extra traffic if one or several links go down To conduct a fail analysis you must first select Route or Optimize from the Execute menu The
24. Fail Analysis submenu has the following choices Fail Fails one or more connections in the network A location can be a node card or port Failing a port will fail the link using that port N Note In this case the HELP key is useful guide Enter HELP once to select the site Enter Help a second time to select a port Alternate Route Attempts to reroute the connections after failing the network locations specified above Its output results to the following tables in the Display menu Total Links Load Routes and No Routes Results Displays reports that summarizes the alternative routes from the above reroute Generate Generate a file with the reports from above Simulate All Automatically fails each link card site or port and produces a report When you select Simulate All you are asked to enter a name for the report the NMT fails each element one at a time and you can display the report by selecting View from the Report menu View View any failure analysis report from a disk Options Allows you to specify whether the system should ignore IMATM trunks or virtual trunks when performing a fail analysis If all connections do not reroute as a result of link failure or a set of link failures add additional capacity to the links by increasing the size of existing links the link count or adding new links You can use TPI and WANDL to help design a resilient topology Build Sites Command Selecting Build Sit
25. Only MGX the feeder 8220 feeders FDR_INT2 supported FdrFC E H Feeder frontcard the line interface type at FDRFCI the feeder In some cases multiple front FDRFC2 cards can support a service on a platform In those cases you can specify the front card you want Red N P Enter Y for frame relay cards that are to be RED redundant Pr 0 O Rerouting priority 0 to 15 with 0 the COS Defaults used highest rerouting priority until Release 8 1 8 2 for ATM Ad O H Restriction type Link media types that this AVD Defaults used connection should avoid until Release 8 1 8 2 for ATM CBRT N O Cell based routing flag If set to Y the CB connection can be routed only on the cell base routing cards The traffic will never be permitted to be converted into packets Cisco WAN Modeling Tools Guide OL 10426 01 Rev A0 Chapter 4 Configuration Tables and Fields Table 4 8 Bursty Table continued Bursty Table Field Defaults Notes Description and Comments DBF CET TPI Endpoint The ID of the connection DLCI for FR ADDRESSI Address VPC VCI for ATM These addresses are the IDs of the connection as it enters and exits ADDRESS the ATM WAN cloud Routing The ID of the connection s primary routing RT ADDRESS1 Address segment RT ADDRESS2 Index 0 O SNMP connection index for StrataView SNMP INDX data base This is the numeric identifier i required for the a
26. Release 5 Cisco WAN Modeling Tools User Guide 15 3 00 0L 10426 01 Rev A0 Cisco WAN Modeling Tools Guide E Preface E Obtaining Documentation Release Notes for CWM Automated Bulk Provisioning Release 15 3 00 Cisco WAN Manager Automated Bulk Provisioning Guide Release 15 3 00 The CWM Modeling Tools and Automated Bulk Provisioning user guides are also available on their software CDs and ordered separately Refer to the current CWM release notes for information on all the switch products that CWM supports and that are certified in this release You can access all CWM documentation at this website http www cisco com en US products sw netmgtsw ps2340 tsd products support series home html These documents support this release of the Cisco Multiservice Switch products and are shipped with the product Regulatory Compliance and Safety Information for Cisco Multiservice Switch Products MGX BPX and SES Familiarizes you with safety precautions for your product e A Guide to Cisco Multiservice Switch Documentation Describes how to find the manuals and release notes that support multiservice switches and network management products These documents are available only online This guide ships with the product e Installation Warning Card Contains precautions that you should take before you insert a card into a slot This Warning Card ships with the product You can access the MGX switch documentation at this w
27. SNMP INDEX CWM reference for this n connection Rt Metrics AW M How the connection is routed RT MET Cost 0 O Maximum cost allowed for the MAX COST least cost routing path for this connection DR N O Direct routing Indicates that DR the connection must use the preferred route provided If it cannot use the preferred route the connection should not be routed Preferred_ O The preferred route of the Route is stored in Route connection The first and last 19 fields routing site are optional and all feeder sites are optional An PR SITE2 Available starting with equal sign separates the site PR SITE3 Release 7 2 Specific names Specific links are PR SITEA Trunk not available specified by the slot port for the until Release 8 4 incoming and or outgoing port Routes are not PR SITE20 available on PNNI networks 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide H Chapter4 Configuration Tables and Fields E Data Table Table 4 6 Voice Table continued Field Defaults Notes Description and Comments DBF CET TPI Current_Ro O The current route from CET Route is storedin ute extractions 19 fields Available starting with CR_SITE2 Release 7 2 Specific Trunk not available CR SITES until Release 8 4 CR_SITE4 Routes are not available on PNNI networks CR_SITE20 Comments O Comment field maximum of CIRCUIT_ID Not available prior to Comment 20 characters Release 7 2
28. Site 1 M H Site name of owner of a connection SITEI Port ID 1 0 O Logical slot port number at Site 1 for the connection Enter 0 and NMT assigns Enter n m to specify port slot IDI Site 2 M H Site name of remote end of a connection SITE2 Port ID 2 0 Logical slot port number at Site 2 for the connection Enter 0 and NMT assigns Enter n m to specify port slot ID2 0L 10426 01 Rev A0 Cisco WAN Modeling Tools Guide H Chapter 4 Configuration Tables and Fields E Voice Table Table 4 6 Voice Table continued Field Defaults Notes Description and Comments DBF CET TPI Qty 1 M Quantity Number of CONNS connections of the specified type Since slot and port are included this field is always set to 1 Type C32 M H Type of voice connection TYPE Derived heuristically prior to Release 8 5 T connections shown as P FastPAD CELP8 and CELP48 conns shown as ATC16 E2E TYPE SPVC M The end to end type of the E2E connection PVC SPVC Coded XPVC Hybred and 1Ended are 9 all valid C PVC S SPVC H Hybred X XPVC E Single ended Sig CAS O Signalling type channel SIG associated signalling CAS or common channel signalling CCS or clear CLR PR 0 O Rerouting priority O to 15 COS Defaults used prior to with 0 the highest rerouting Release 8 5 priority Ad O H Restriction type Ad is shor
29. TPI from your ID ssirel removes SSI from your ID S Note Enter the nmtrel command to remove all applications from your ID Troubleshooting NMT Installation The table below describes a common NMT Installation problems and what can be done about them Symptom The command nmt fails returns message xterm not found Probable Causes Unix is not configured for xterm Solution Have a UNIX administrator provide xterm support for your account Symptom Cannot write cnf files or reports Cannot update the map Probable Causes No write permission Solution Make sure your account has write permission to your working directory Symptom NMT fails and displays the following error message Error Cannot open display lt IP ADDRESS 00 gt Probable Causes No remote display permission Site is unreachable Solution Check network connectivity If you are using a dial up line remote GUI display may be impossible Cisco WAN Modeling Tools Guide I 0L 10426 01 Rev AO EN Chapter2 Installing the Cisco WAN Modeling Tools E Troubleshooting NMT Installation Symptom NMT displays the following error message Xlib Connection to lt IP ADDRESS 00 gt refused by server Xlib Client is not authorized to connect to server ERROR cannot open display lt IP ADDRESS 00 gt Probable Causes You are running NMT remotely and the server is not granting you permis
30. The link load report has a DBF output format Trunk Span Sitel nyd lax pit nyd Load Type Total CBR BData RES PVC Total Voice RES PVC Total NTS Voice BData RES Total NTS Voice BData RES Total NTS Voice BData RES PVC Link Load Used load x lt a 87515 80000 7515 600 55 426 426 600 213 2904 630 994 1280 600 237 2824 630 994 1200 600 2164 630 994 540 600 227 87515 80000 7515 600 55 426 426 600 213 6824 630 994 5200 600 237 2824 630 994 1200 600 2164 630 994 540 600 Maximum load ge 96000 96000 1771 IZ 8000 8000 213 213 80000 80000 1771 1771 10666 10666 4830 4830 1771 1771 cps cps 92 pvc pvc pps pps 6 pvc pvc pps pps 9 pvc pvc pps pps cps cps 51 pvc pvc H Cisco WAN Modeling Tools Guide 0L 10426 01 Rev AO _Chapter6 NMT Reports ATM amp FR Ports Report or Bursty Data Ports Report The ATM and FR Ports Report lists all ports for each site that supports a connection found in the Bursty Connection Table This report is output in DBF format Data amp Voice Ports Report or Voice amp Data Ports Report The Data and Voice Ports Report lists all ports for each site that supports a connection found in the Voice Connection Table and the Data Connection Table Connection Routes Report The Connection Report display
31. These tools provide interfaces to CWM Excel and WANDL 0L 10426 01 Rev A0 Cisco WAN Modeling Tools Guide Chapter1 Overview of the WAN Modeling Tools BE Functionality of the NMT Figure 1 1 shows the relationship between the applications that make up the Cisco WAN Modeling Tools Figure 1 1 Relationship between the Cisco WAN Modeling Tools EXCEL CWM u NMT netowork topology lt gt NMT VA data CND WANDL Functionality of the NMT The NMT is a menu driven application that enables you to model the behavior of both simple and complex networks The program processes information provided by you and returns a proposed configuration This configuration can then be modified and reprocessed to add redundant links support additional sites and so forth You can also perform failure analysis of the network model by failing selected links and then evaluating the rerouting capability of the remaining links The NMT allows you to interface to WANDL and other systems to further optimize the design Only a few fields need to be completed in order for the NMT to generate a configuration To create the best configuration possible you should have extensive knowledge of computer networks including ATM and Frame Relay networks In addition entering precise values for optional fields will help the NMT provide you with a precise parts list that you can use
32. Tools Guide H Chapter9 Configuration Extraction Tool BE Usingthe CET Using the CET Step 1 Step 2 Step 3 To extract data from CWM and generate an NMT compatible cnf file perform the following steps For the best data consistency make sure the network is not running any administration activities that add or delete network elements Also make sure you are in the correct working directory and that the CET has been installed there The svp2cet command extracts selected data from the SQL database and writes them in the sub directory netw name If the command fails or generates warning messages view the file ntwk name svp2cet con for a log of SQL extraction To extract the configuration from CWM enter the following command svp2cet netw name options netw name is the name of the directory that the command creates The directory contains data files that are used as inputs for the command shown in the next step which builds a cnf file You will use this directory name again in the next step swt rev is the switch software revision you are using You may need to use this option only if the CWM release is more recent than the switch software release S Note It may take a long time for the extraction process to run There is no on screen indication that the process is running A message appears announcing when the process is complete or another message appears if the process fails If the process fails delete th
33. X do not generate a report saves execution time Generate Names and generates a report View Selects a report to display Erase Deletes a report from the current directory Path Sets the directory path Set Options Specifies the following report variables e Price Option Enter 0 for normal pricing Enter a number from 1 through 5 to specify number of years in lease e Detail Reports Enter Y to generate Bursty Link Load Reports Enter N to exclude Bursty Link Load Reports e Output DBF Reports Enter Y to create a report in DBF and text format Enter N to create report only in text format e Output Pref Rte Sets Preferred routes Y to output a file of preferred routes that can be inserted into switch CLI commands to create those routes Bundle Connections Y will keep connections bundled by routing properties in the reports to reduce the size N will expand reports for each individual connection Output Map Info Y will write the information from a NMT command to be input into the MAP graphical display N will not to reduce execution time Map Site Feeders Y will display all feeder sites and their links on the map N will display only routing nodes and links e Map MultiNode Sites Y will display each switch in the case where NMT generated addition switches at a site N will display only one marker for site table entry Cisco WAN Modeling Tools Guide Chapter3 Using the NMT
34. concentrator FDR2ID IMA_RD IMATM resiliency degree Number of TI E1 lines of AIMUX port that are allowed to fail before the AIMATM trunk goes down IMA RES NTS Q 0 0 Queue Depth in Transmit Receive direction for Non Time Stamped connection loads When the entry is 0 NMT will assume the default queue depth NTS QDS NTD QDR Voice Q 0 0 Queue Depth in Transmit Receive direction for Voice connection loads When the entry is 0 NMT will assume the default queue depth DSI_QDS DSI_QDR Cost 10 The Least Cost Routing LCR weight WT AR Y N flag indicating if the link is Autoroute enabled AR PNNI Y N flag indicating if the link is PNNI enabled PNNI Heuristic used for BPX nodes AggToken The value used in the PNNI link aggregation algorithm At least one link with a unique aggregation token will always be known in the PNNI logical topology AGG_TOK Comment Comment field used in NMT only COMMENT I 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide H Chapter4 Configuration Tables and Fields W LinkSpecialCases Table 4 3 Link Table continued Field Defaults Notes Description and Comments DBF CET TPI AW 5040 O Administrative weight used for least AW cost in the PNNI routing algorithm Comment A free field comment field Translates COMMENT Not available The comment present t
35. continued Key Function Description Ctrl g Go to line Display Reports line number of current table entry Entering a line number allows you to go to that specific table entry Ctrl h First Field Moves cursor to the first field in the row Ctrl j Last Field Moves cursor to the last field in the line Ctrl k Left One Space Moves cursor left one character within a selected field If the cursor is on the first character in the field this command moves the cursor to the previous field Ctrl 1 Right One Space Moves cursor right one character within a selected field If the cursor is on the last character in the field this command moves the cursor to the next field You can get help using keyboard commands as follows e Pressing the F1 key If you are unsure what data to enter when the cursor is in a field of a table you can press the F1 key to display a help screen that lists and describes the options for that field Pressing the F2 key This provides a description of the window editing and cursor capabilities of the function keys for a selected table Highlighting an item in a menu which displays a one line description e If you enter an unacceptable value for example IXG instead of IGX into an NMT field the system beeps and an explanation is displayed at the bottom of the window e Press the Help or F12 key or FS in the PC version of NMT to display a Choice List You can scroll through the list to select
36. demand route request Link Selection Rule For PNNI defines the sorting order of horizontal parallel links between two nodes from the same peer group Maximum Crankbacks For PNNI maximum number of crankbacks allowed on the routing node Range is 1 5 H Cisco WAN Modeling Tools Guide 0L 10426 01 Rev AO Configuration Tables and Fields Chapter4 Configuration Tables and Fields Model Options Model Options Mil Selecting Model options from the Config lt Global menu allows you to specify the model parameter settings listed in Table 4 17 Table 4 18 Execute Menu Model Parameter Settings Setting Defaults Description Optimize LDI Ports Y Y NMT tries to optimize the cost of the LDP cards by using lower cost LDP 4 cards instead of LDP 8 cards If no NMT only uses LDP 8 cards You can still explicitly call for an LDP card with a specific line count Group Bursty Conns Y NMT groups connections when their number exceeds the maximum number of LCONS An LCON is a resource required for each network route with similar properties The grouping of connections allows more routed connections in a network If no NMT does not group connections and fails to build a site when a grouping is required Distribute Groups Y NMT optimizes the grouping of connections to smooth network loading If no NMT does not optimize grouping Use SRM 3T3 on MGX 8220 Y NMT will provis
37. field Enter T1 El Vox or other valid voice or lines you must make the feeder node explicit by having it data back ards SI appear in the Sites table Fdr BC field Leave blank or enter line interface for In the Bursty Traffic table verify that the connection Acc ss feeder such us Port Concentrator MESRTO 9 originates or terminates on the IPX feeder as a Frame Relay FastPAD i i connection MGX 8220 Feeders Bursty Traffic table MGX 8220 edge concentrators are provisioned from the BC General Instructions Site field Enter the site name Must be BPX site Type field any from the list of choices BC Back Card field Enter the back card that connects the BPX to the BNM card on the MGX 8220 edge concentrator Fdr BC Feeder Back Card field Enter the customer interface on the MGX 8220 service module and Fdr BC fields in the Bursty Traffic table If the back card specified can support MGX 8220 and the feeder back card can support the traffic type with an MGX 8220 service module NMT will provision an MGX 8220 edge concentrators The Fdr BC field determines the connection interface to the MGX 8220 feeder The NMT determines the front card FRSM AUSM or CESM based on the feeder back card selected If T3 is selected as the feeder back card the NMT assigns as SRM 3T3 service module If connection type implies AUSM card the PCR value determines the port speed and whether more than one T1 E1 is required 0L 10426
38. files from the NMT directory to the PC SSIDOSKT TAR containing DOS bat files for tarring and untarring the NMT SSI dbf data files the tar exe program and the Microsoft Excel macro SSI Also you should read the file SSI readme The archived file should have a filename with a tar extension FTP the archived file to a workstation that has a directory linked to the NMT Alternatively copy the file to a PC or Macintosh compatible diskette To copy from a PC or Macintosh diskette to a UNIX workstation use the mcopy command For example mcopy a filename copies the file filename to the UNIX workstation directory from which the command was issued To read the DBF or tar file from NMT go to the FILE IMPORT menu and select DBF Files If you are on the unix side you will be prompted if you want to open a tar file or read directly from a DBF file set To perform this same functionality in UNIX command mode perform command 4 alt To unarchive the file enter the following command tar2nmt filename filename is the name of any tar file in the current directory The unarchived file will have a cnf extension and can be opened and edited in the NMT Cisco WAN Modeling Tools Guide Chapter 11 SpreadSheet Interface Usage Review W Usage Review Step 1 Step 2 Step 3 Step 4 Step 5 Step 1 Step 2 After creating a CNF file using NMT CET or TPI use SSI tools to translate the CNF file to an excel workboo
39. graphical display of your topology e Aid in visualizing of traffic levels Helps you see the effects of node or link failures in your network e Aid in visualizing a PNNI Peer Group hierarchy of logical nodes and logical links e Assists in the design of multiple peer group PNNI networks by enabling you to form logical groups of nodes and to easily change the groupings Note The Map tool is only available in NMT running on UNIX Solaris operating systems NMT for Windows does not contain the Map tool NMT Map Startup After running the Route or Optimize commands from the NMT Execute menu start the map by selecting MAP from the NMT Display Menu It may take several seconds for the MAP window to display Once the NMT Map is on screen you can drag it to a suitable location and size it appropriately A PNNI network introduces the concept of a peer group which is a collection of physical nodes A group is represented by a logical node which the NMT displays as a colored circle PNNI networks allow a hierarchy of groups with higher level groups being collections of logical nodes The NMT Map supports the grouping of physical nodes into a logical node for any network For a network which has groups defined the map only shows the highest level logical nodes when it is first opened Figure 10 1 If all nodes have been assigned to peer groups no actual nodes will be shown If some nodes have not been assigned to peer groups those
40. on the screen move the cursor to a blank spot on the screen Hold down the middle mouse button while dragging the cursor in the direction you want the map to move When you release the mouse button the nodes links and background map shift in that direction on screen To return to the map to its original position move the cursor to a blank spot on the map and click the right mouse button Map Color Coding The map tool uses color coding to help you recognize important aspects of your network topology The color coding is described in Table 8 1 Table 8 1 Network Topology Map Color Coding Coor Node link Green Node is functioning normally all Link traffic is below the warning threshold connections have been routed Yellow Node is a hub node and some of its feeders are Link traffic is above the warning threshold but not shown below the critical threshold Red Not all connections at this node could Link traffic exceeds the critical threshold or route link has failed Note The colors of the logical nodes groups of nodes and the links displayed with thick lines multiple links are determined by the worst condition of the individual nodes or links that make up the set Controlling Map Displays in NMT Map displays are controlled through the Report Menu in the NMT Main Menu The Set Options screen contains variables to control map output Figure 8 8 0L 10426 01 Rev A0 Cisco WAN Mod
41. the connection side that uses a MC3810 enter the i back card of the FTC card that links the hub IPX IGX switch to the MC3810 At least one end of the connection T1 EI V or X On the other side of the connection enter the back card of PAUSE have an entry in the Fdr BC field the FRP FRM also T1 E1 V or X in order for a MC3810 to be designed MN If the switch software release does not Fdr BC Feeder Back Card field For the connection side with a MC3810 support the MC3810 NMT designs enter the connection interface on the line side of the MC3810 FastPADs MIR field Specify the bandwidth requirements on the feeder trunk and the Remember to set the connection network backbone bandwidth by adjusting the MIR and PIR field Specify the port and bus bandwidth requirements PIR fields Setting up switched Voice Traffic table To add MC3810 switched voice voice connections Quantity field Set the number of connections between a pair of MC3810s to the estimated peak number of simultaneous calls between the two destinations Type field Enter Session BC Back Card field Select valid FTC back card V X T1 E1 Fdr BC Feeder Back Card field Leave blank Create dummy MC3810 connections Site 1 Site 2 Connect each site entered above to itself e g Boston Boston HubID fields Optional Hub 1 ID and Hub 2 ID can be used to specify the slot port of each end of the connection Connect a site entered above to itse
42. 1 The Thresholds dialog box contains two sliding bars Critical and Warning that allow you to define critical and warning as a percent of total bandwidth By sliding the bar you establish the threshold at which the amount of traffic is considered excessive critical or close to excessive warning The NMT displays excessive traffic in red close to excessive traffic in yellow and all other traffic in green Cisco WAN Modeling Tools Guide CHAPTER NMT Utilities Command Line NMT provides commands for modifying and summarizing data in the NMT configuration cnf files Most NMT functionality can be executed in the command line interface CLI You can use this feature to write scripts and batch commands Enter all commands on a UNIX command line in the working directory Most commands use the following form command cnffile options where cnffile is the name of the NMT configuration file Several of the commands require additional input such as names of output files Before you use one of these commands enter command h at the UNIX prompt This calls up help text Table 7 1 lists the NMT Command Line Commands Table 7 1 Command NMT Command Line Commands Description NMT Route cnffile Run the NMT Route command generating all reports NMT Optimize cnffile Run the NMT Optimize command generating all reports NMT Failure cnffile Run the NMT Simulate All command sniffenf cnffile Rea
43. 1 informational messages 3 11 Installation cost field 4 9 IPX IGX feeders 4 33 BCfield 4 33 K Keep field 4 8 keyboard commands 3 9 L LCON 4 31 least cost model 5 5 least cost routing 5 1 linking applications to projects 2 3 CET to project directory 9 5 Link redundancy field 4 8 M map tool legend 6 7 menus 6 6 using 6 7 MGX 8220 FdrBC field 4 33 MGX 8220 feeders BC field 4 33 creating in NMT 4 33 multiple feeders 4 34 H Cisco WAN Modeling Tools Guide 0L 10426 01 Rev AO port to multiport 4 34 Type field 4 33 MGX 8220 shelf 1 3 Microsoft Excel 11 1 Minimum Information Rate field 4 19 MIR MCR field 4 19 model parameters configuration 3 5 Modem field 4 3 Name field 4 26 navigation 3 9 Network Modeling Tool See NMT New Share with ID field 4 31 NMT command line 7 1 delete file 3 4 hardware supported 1 2 1 3 help 3 10 linking directories 2 3 menu descriptions 3 2 menus illustration of 3 3 starting 3 1 switch software version 3 5 unacceptable input 3 11 nmt2tar command 11 2 nmt2tpi command 10 3 0 Online Help 3 11 Optimize LDI ports field 4 31 Optimizing Topology message box 5 5 P path set 3 4 Peak Information Rate field 4 19 PIR PCR field 4 19 PNNI 5 3 port concentrator 4 41 designing 4 41 port concentrators 4 36 Power field 4 3 preferred routes 5 2 Index MI Q Quantity field 4 12 4 15 4 18 Queue Dept field 4 9 r
44. 2 1 Cisco WAN Modeling Tools relationship between 1 2 Class of service field 4 12 CND Cisco Network Designer Importer 12 1 command line commands 7 1 Comment field 4 14 4 17 4 22 Configuration Extraction Tool See CET Configure menu erase file 3 4 lists of choices 3 10 path setting 3 4 read file 3 4 save 3 4 table scan 3 12 Connection utilization percentage field 4 16 Cost per month field 4 9 D Data Frame Multiplexing field 4 3 4 15 dbffiles 11 1 delete file 3 4 directed routes 5 2 Display menu 3 11 Distance field 4 8 Distribute Groups field 4 31 DOS tools TPI 11 2 11 4 EIA field 4 15 Encoding format field 4 15 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide gi MH index environment variables NMTHOME 2 4 erase file 3 4 error checking automatic 3 12 error messages 3 11 errors and warnings 3 11 Excel macros 11 2 11 4 Microsoft Excel 11 1 Explicit feeders BC field 4 35 creating in NMT 4 35 Type field 4 35 F FastPAD 4 38 adding connections 4 39 defaults 4 40 multiple ones at a site 4 40 Feeder back card field 4 13 4 16 4 20 Feeder field 4 9 Feeder ID field 4 13 4 16 4 20 4 24 feeders IPX IGX 4 33 Frame Relay Factor field 4 3 Front card field 4 4 function keys 3 9 G Group Bursty Connections field 4 31 High End Processor field 4 3 IGX description of 1 4 IGX field 4 4 IMATM resiliency degree field 4 9 IMATM trunks 5 4 Index field 4 2
45. 6 01 Rev AO EN Chapter8 NMT Map Hs Zooming the Map Figure 8 7 Link Display for Logical Links E Matwnark Macian Tanalany SMNAT1GR74 ell tom WEST to EAST _ rss End End2 Type Media Capacity PVCs Used bpx3 1 2 ipx4 3 1 T Z 20000796000 1771 778 full bpx2 1 3 ipx3 5 1 3 Z 50000 96000 1771 182 full Close WEST EAST TT SOUTH 49162 Zooming the Map To zoom in on a region of the map follow these steps Step1 Move the cursor to a blank spot on the map above and to the left of the area you wish to enlarge Step2 Hold down the left mouse button while dragging the cursor down and to the right A dotted box appears on the screen Step3 Continue moving the cursor until the dotted box surrounds the area you wish to enlarge Step4 Release the left mouse button The enlarged area now appears in the display To return to a map that has been zoomed to it s original size move the cursor to a blank spot on the map and click the right mouse button The map zooms out displaying more of the original map area Continue right clicking on the map until it returns to original size It may take as many as 10 clicks to return the map to normal Alternatively selecting a map from the Background menu will also return the display to normal Cisco WAN Modeling Tools Guide EIN OL 10426 01 Rev A0 Chapter8 NMT Map Panning the Map W Panning the Map To move a map to a different position
46. A Routing Algorithm field Enter C least cost or CD least cost least hops routing rule with delay as a cost Links table The weight of the trunk to be Cost field Enter a value between 1 and 50 used in the routing algorithm Voice Data and Bursty Traffic tables The maximum allowable cost of Cost field Enter a value between 1 and 100 the route for this connection Preferred and Directed Routes NMT allows you to provide any connection with a path through the network called a preferred route If the preferred route is available NMT will follow it for that connection If the preferred route is not available common during Failure Analysis NMT routes the connection any way it can NMT also models a directed route a special case of a preferred route in which a connection must take its preferred route or not be routed at all To create a preferred route enter a route in the Preferred_Route field in the Traffic tables The route is a series of cross connects Xcon separated by equal signs i e Xconl Xcon2 XconN A cross connect consists of an optional In trunk PortID slot port identifier followed by a forward slash a mandatory Site Name and an optional forward slash followed by an Out trunk PortID That is you represent a cross connect as In trunkPortID SiteName Out trunkPortID When you specify either of the PortID s in an Xcon you specify a unique trunk If NMT has a choice of trunks b
47. AN Modeling Tools sub applications on a UNIX Platform section that follows To install the SSI on a PC platform see the Installing the SSI on a PC Platform section later in this chapter Note This procedure is necessary only if you used the NMT option with NMTlink The procedures in the sections that follow are for accessing loading and linking the applications to project directories 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide Chapter2 Installing the Cisco WAN Modeling Tools E Installing a Cisco WAN Modeling Tools Sub application Installing the Cisco WAN Modeling Tools sub applications on a UNIX Platform Use the following procedure to install a Cisco WAN Modeling Tools sub application on a UNIX Platform Step 1 Go to a working directory where you have run nmtlink Step 2 Set up a UNIX environment variable for CET TPI or SSI setenv nmt_path nmt_path is the path to the version of the NMT software you are using Step3 Link the project directory to the NMT release For CET CETHOME cetlink For TPI TPIHOME tpilink For SSI SSIHOME ssilink Installing the SSI on a PC Platform Install the Spread Sheet Interface on the PC regardless of whether you use the PC or UNIX version of NMT To install SSI on a PC complete the following steps Step 1 Transfer the following files to your PC e SSI NMT Excel macro file This macro converts DBF formatted NMT tables into an Excel spreads
48. Background Topology Options Help 49166 When you have finished adding all the nodes shut off this feature by clicking the left or right mouse button on a blank spot on the map or on the group you are adding to This shuts off the Add to feature makes an audible beep and restores the cursor to an arrow Warning N You must shut off the Add To feature before performing any further tasks Note If groups were not defined in NMT but added in the Map User Interface only border nodes will only show up on the display when Update Map is selected from the Topology Menu I 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide H Chapter8 NMT Map W Deleting Groups Deleting Groups Step 1 Step 2 Step 3 Step 4 To delete a group perform the following steps Select Groups from the Main Menu Select Delete from the Groups Menu The cursor will change to a skull and crossbones Select the group you want to delete and click the left or right mouse buttons A dialog box appears Figure 8 13 Click OK The box disappears Figure 8 13 Confirm Deletion Dialog Box Do you want to delete this object 49168 On the map display the group icon and name disappear and all the original nodes and links are restored Deleting Nodes or Groups from Existing Groups Step 1 Step 2 Step 3 Step 4 To delete a node or groups from existing groups perform the following steps Select Gro
49. CISCO SYSTEMS Cisco WAN Modeling Tools User Guide Release 15 3 00 May 2006 Corporate Headquarters Cisco Systems Inc 170 West Tasman Drive San Jose CA 95134 1706 USA http www cisco com Tel 408 526 4000 800 553 NETS 6387 Fax 408 526 4100 Customer Order Number Text Part Number OL 10426 01 WS THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT NOTICE ALL STATEMENTS INFORMATION AND RECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE PRESENTED WITHOUT WARRANTY OF ANY KIND EXPRESS OR IMPLIED USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR APPLICATION OF ANY PRODUCTS THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE IF YOU ARE UNABLE TO LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California Berkeley UCB as part of UCB s public domain version of the UNIX operating system All rights reserved Copyright 1981 Regents of the University of California NOTWITHSTANDING ANY OTHER WARRANTY HEREIN ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE PROVIDED AS IS WITH ALL FAULTS CISCO AND THE ABOVE NAMED SUPPLIERS DISCLAIM ALL WARRANTIES EXPRESSED OR IMP
50. D files are located the in the nmt bin directory on your hard drive S Note Install the NMT2CND on a high powered PC with Cisco Network Designer CND and Cisco WAN Modeling Tool NMT installed NMT installation is not technically required to run the NMT2CND utility If you plan only to use the DBF2CND utility you only need CND and MS Excel installed Cisco WAN Modeling Tools Guide 0L 10426 01 Rev AQ EL Chapter 12 Cisco Network Designer Importer B CND PC Import Utilities Nmt2Cnd Operating Instructions Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 To operate the nmt2cnd perform the following steps Shut down CND if it is running Launch nmt2cnd by clicking on the icon You should see an MFC menu with the following three selections File Export and Help N Note Select File from the menu Then select open NMT cnf Navigate to find and open your CNF file nmt2cnd will read the cnf file and look for a partlist dbf file in a sub directory with the same name as the cnf file To create the partlist dbf file run the Execute command Use the NMT to run the Route Optimize or Build Sites commands A pop up window appears listing sites links and part candidate counts Click on OK Select Load from the menu Then select Import into CND CND will launch and the project loads No messages are displayed in CND unless the project name already exists in which case you will see a messa
51. Front Back Type PVCs Port UBU PS Card Specific Stat Used Allc Used Max 1 A NPM 2 2 2 2 S NPM 3 A UXM ST3 Trunk 295 1 60 60 184 FPL 100 GWL 100 Cisco WAN Modeling Tools Guide _Chapter6 NMT Reports Using the Map Tool W 4 A UFMC T1 192 48 32 32 59 5 A UFMC T1 103 26 24 24 59 Legends FPL Fast Packet Load Percent of FP bus load Total bus load GWL Gateway Module Load Percent of FP bus load Max FP bus load This report tells us that the IGX switch with the ATM end is using 40 of its 584 UBU s where the IGX switch with the FR end is using 118 UBUs Looking to the UXM trunk card on slot 3 for both switches the UXM trunk card at the ATM end is configured to reserve 25 UBUs of the bus with the current traffic load requiring 13 The maximum setting for this value for a UXM card is 235 The FPL percent means that only 8 of the traffic on this card is in Fast Packets and the GWL percent means that only 2 of the maximum Fast Packets are being used by the card Note that the FP traffic here is internally signaling between the card and switch At the FR end the FPL is 100 as all traffic on this card is FP The GWL is also 100 because this card can take no more FP traffic It can take more ATM traffic S Note Card Statistics output is in DBF format PNNI Topology Report The PNNI Topology Report lists all the virtual links in the PNNI Topology View Summary The View Summary Report is generate
52. I 0L 10426 01 Rev A0 EN Chapter5 NMT Execute Commands B Optimize Command Cisco WAN Modeling Tools Guide CHAPTER NMT Reports This chapter describes the different types of reports generated by the NMT NMT ascii reports are generated with each run of either the Route command or the Optimize command Some of these reports can be viewed from the Display menu All can be written to disk from the Report menu Define Input Screen determines which reports to include in the output file and Generate creates and names the output file Most reports are fairly straight forward in the information they present Some reports are also output in DBF format and are included in the SSI interface to Excel These reports can be translated to comma separated value CSV format using the dbf2csv command line utility Note Site Report Link Report For a more detailed description of the NMT reports see the HELP DISPLAY menu in the NMT application The types of reports are described below The Site report displays summary information of the provisioning and cost of each site If the Node Num field is greater than one NMT provisioned multiple switches at that site location The Link report displays basic provisioning and cost information about the links Network Summary Report The Network Summary report contains the total network costs and global statistics about the routing of connections in the network The routing summa
53. IX Platform Support If you have CWM installed on an AIX platform run the svp2cet command on that platform and run the rest of the process on a support UNIX platform Install the NMT on both the CWM AIX platform and a standard platform After running the svp2cet command copy the entire subdirectory with the plan name you entered to your working directory on the standard platform Then run the cet2nmt command to complete the extraction process To move the entire sub directory use the UNIX tar command then transfer the tar command in binary mode and untar it on the standard platform Troubleshooting CET Occasionally CET will execute successfully but the resulting extract will be incomplete If CET fails during the svp2cet command look at the earliest error in the svp2cet con file The table below lists some common problems and what to do about them Symptom Links are missing Probable Causes Incomplete data in SV database Solution View the file named maybe links sv This file contains possible links based on incomplete data If the missing links are in this file add them to the links svp file and rerun cet2nmt 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide H Chapter9 Configuration Extraction Tool BE Troubleshooting CET Symptom Connections are missing Probable Causes Incomplete data in SV database Solution CWM 9 2 or higher View the files that begin with the word extra
54. LIED INCLUDING WITHOUT LIMITATION THOSE OF MERCHANTABILITY FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING USAGE OR TRADE PRACTICE IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT SPECIAL CONSEQUENTIAL OR INCIDENTAL DAMAGES INCLUDING WITHOUT LIMITATION LOST PROFITS ORLOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR INABILITY TO USE THIS MANUAL EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES CCSP CCVP the Cisco Square Bridge logo Follow Me Browsing and Stack Wise are trademarks of Cisco Systems Inc Changing the Way We Work Live Play and Learn and iQuick Study are service marks of Cisco Systems Inc and Access Registrar Aironet BPX Catalyst CCDA CCDP CCIE CCIP CCNA CCNP Cisco the Cisco Certified Internetwork Expert logo Cisco IOS Cisco Press Cisco Systems Cisco Systems Capital the Cisco Systems logo Cisco Unity Enterprise Solver EtherChannel EtherFast EtherSwitch Fast Step FormShare GigaDrive GigaStack HomeLink Internet Quotient IOS IP TV iQ Expertise the iQ logo iQ Net Readiness Scorecard LightStream Linksys MeetingPlace MGX the Networkers logo Networking Academy Network Registrar Packet PIX Post Routing Pre Routing ProConnect RateMUX ScriptShare SlideCast SMARTnet The Fastest Way to Increase Your Internet Quotient and TransPath are registered trademarks of Cisco Systems Inc and or its af
55. OUTE or EXECUTE command have NMT insert any multiple switches at one site as separate entries into the site table Feeder MGX8220 s After running ROUTE or EXECUTE command have NMT insert any implicit MGX8220 s at one site as separate entries into the site table Store Model Data After running ROUTE or EXECUTE command have NMT store various data back into the CNF file Individual fields can be selected in an additional menu Edit Options invokes edit form that includes few flags that control UI in the edit tables Strict UI Checking controls validation of some of the fields like link type link front card connection interface etc Note that all the data will be checked in any cases during Execute operation Default CNF file defines the name of CNF file that is used as a templates for edit tables The first entry for each table in this file is used as default values when adding new table entries Correct Table Data controls writing back corrections that makes NMT back to the user data If set to Y default value the NMT will write back to the CNF all the corrections it makes internally if set to N user data will remain in the state the user sees them in the edit tables Check Route Paths Enables disables route checking Suppress Duplicate Messages After five similar messages appear in the log suppress all additional messages of that type and provide the count of suppressed messages If set t
56. R or VBR for ATM PNE analysis connection a determined whether ATM connections were ABR CBR or VBR E2E TYPE SPVC M The end to end type of the connection E2E PVC SPVC XPVC Hybred and 1Ended Coded are all valid C PVC S SPVC H Hybred X XPVC E Single ended H Cisco WAN Modeling Tools Guide 0L 10426 01 Rev A0 Chapter 4 Configuration Tables and Fields Table 4 8 Bursty Table continued Bursty Table Field Defaults Notes Description and Comments DBF CET TPI FS Y O Y N flag indicating if the connection has FS ForeSight implemented or not Foresight only applies to FR and ABR connections or FR ATM multi segment connections MIR SCR 64 0 64 0 M Minimum Information Rate that is MIRI pk MCR guaranteed in kbps for FR or ATF or Minimum Cell Rate for VBR ABR DER Ignored for CBR UBR PIR PCR 256 0 25 M Peak Information Rate burst rate that is PIR1 6 0 allowed in Kbps for FR or ATF or in cps for ATM EIR MBS 1000 100 0 Maximum Burst Size for ATM VBR MBSI 0 connections The maximum number of cells that are allowed to burst over a period of MBS time at a rate higher than the SCR XUtil 100 100 E Statistical estimate of the percentage of PCT UTILI p T time that a frame relay connection may actually be transmitting at the minimum PCT UTES Perault used information rate for FastPAD The data may be unreliable if it changed aft
57. Rev A0 Cisco WAN Modeling Tools Guide Bg Chapter 7 NMT Utilities Command Line Table 7 1 NMT Command Line Commands continued Command Description onesite cnffilel cnffile2 site Specify one site and extract a cnf file with only connections and links that belong to that site Useful for analyzing a subsection of a network adj2nmt lt cnfn gt lt cnfref gt lt cnfout gt Automates the changes made in the lt cnfref gt file to the lt cnfin gt file and writes the results to the lt cnfout gt file Designed to help the user modify a cet extraction regarding data not in the Cisco Strataview Plus database Use the repdiff option to output a detailed report of the differences between these two files enfdiff lt cnfl gt lt cnf2 gt Compares two CNF files Records are matched by unique key regardless of order in file Non unique records are excluded from comparison map2enf lt cnfn gt lt cnfref gt lt cnfout gt Loads the saved map coordinates into a saved cnf topology file enf2map lt cnfn gt lt cnfref gt lt cnfout gt Loads the map coordinates from a saved cnf file into the NMT nodes config file H Cisco WAN Modeling Tools Guide 0L 10426 01 Rev A0 S CHAPTER NMT Map The NMT Network Display Tool also known as the Network Design Topology Map or NMT Map provides a useful way to visualize your network model The map tool provides the following features e A
58. T runs on Windows 98 Windows 99 Windows 2000 and Windows NT Cisco WAN Modeling Tools Guide 0L 10426 01 Rev AO EN Chapter2 Installing the Cisco WAN Modeling Tools MH Installing the NMT Installing the NMT This section explains how to install the Cisco WAN Modeling Tools software and link it to your project directories This procedure also installs any subapplications CET TPI and SSI that came with your copy of the NMT software If you want to install only the subapplications refer to the Installing a Cisco WAN Modeling Tools Sub application section later in this chapter The NMT Product provides both a UNIX and PC version of the NMT tool To install the NMT on a UNIX platform see the Installing the NMT on a UNIX Platform section that follows To install the NMT on a PC platform see the Installing the NMT on a PC Platform section later in this chapter The differences between UNIX and PC version of the NMT are as follows e The PC version of NMT uses F5 for choice list UNIX version uses HELP or F12 e The PC version of NMT has no support to launch the MAP command Note CNF files from either platform can be read by the other For example CNF files from a PC version of NMT can be read by a UNIX version of NMT and vice versa Installing the NMT on a UNIX Platform To run NMT on Unix platforms you need to install the software first Install the software once for each release platform Once
59. TD for VBR Cell Transfer Delay for VBR class of service both real time and non real time in microseconds CDV for CBR Cell Delay Variation for CBR class of service in microseconds CDV for VBR Cell Delay Variation for VBR class of service in microseconds CLR for CBR Cell Loss Ratio for CBR class of service Enter integer N where N is an exponent of 10 N Range is 6 through 10 CLR for VBR Cell Loss Ratio for VBR class of service Enter integer N where N is an exponent of 10 N Range is 6 through 10 AVCR Prop Multiplier For PNNI used in the algorithm to determine significant change of link AvCR Expressed as a percentage range is 1 99 AVCR Minimum Threshold For PNNI used in the algorithm to determine significant change of link AvCR Expressed as a percentage range is 1 99 CTD Prop Multiplier For PNNI this proportional multiplier is used to determine significant change of link cell transfer delay Expressed as a percentage range is 1 99 CDV Prop Multiplier For PNNI this proportional multiplier is used to determine significant change of link cell delay variation Expressed as a percentage range is 1 99 Equal Path Epsilon The connection can only be routed using a restricted media A satellite link for instance Load Balancing Rule For PNNI used if an alternate path exists for a given connection On Demand Routing Rule For PNNI defines the algorithm of calculating route for on
60. Table Scan from the Configure menu Cisco WAN Modeling Tools Guide Chapter3 Using the NMT Troubleshooting NMT W Troubleshooting NMT The table below describes a common NMT problems and what can be done about it Symptom Your mouse does not work on the PC version of NMT Note The mouse is not supported in the UNIX version of NMT Probable Causes The Quick Edit Mode option is checked in the Console window s Properties lt Options menu Solution Open the Properties menu and ensure that Quick Edit Mode is not checked in the Options tab If it is checked click on the box next to Quick Edit Mode to un check it and then click OK Cisco WAN Modeling Tools Guide I 0L 10426 01 Rev A0 LEE Chapter3 Usingthe NMT BE Troubleshooting NMT Cisco WAN Modeling Tools Guide CHAPTER Configuration Tables and Fields This chapter describes the fields in the tables accessed through the Configure menu These tables describe sites links traffic types and more This data can be created and edited with the NMT or imported into the tables from other systems Network topologies are defined by sets of tables Each table entry defines a network element and each table field defines a specific characteristic of that element The Site table which defines the switch locations is the only mandatory table In the other tables you usually only need to define the site name field in the other tables You
61. Tools Guide H Chapter4 Configuration Tables and Fields E Feeders Table 4 18 Execute Menu Model Parameter Settings Setting Defaults Description Share Redundancy Y Y non redundant connections can share cards that are used on redundant connections essentially getting redundancy for free If no non redundant connections cannot share these cards and are provisioned by a separate non redundant service module Reserve pkt swt N Y hold a packet switch in reserve for the VDP background test of standby cards Adavtive VAD N Y all voice connections will be treated as they are in the PROTECT state Use Time Stamp Queue Y Y then low speed data connections on LDP and SDP cards will be used Bundle Parts Y Y provision bundled parts when possible in the parts list FR Route Choice Y Y route FR connections for optimal bandwidth usage If N route FR connections for optimal performance Priority Bumping N Y use the priority bumping algorithm for re routing of connections Connections with higher COS can bump lower priority connections in order to reroute Model PNNI RCC amp SSC Y Y automatically create and provision the PNNI signalling connections the PNNI Hello Protocol RCC and the PNNI Signalling Protocol SSC Special Settings Menu N Add two new menus which enable you to alter internal parameters of basic Cisco products Feeders Specify all feeder equipment in the MGX IGX a
62. Tools sub applications on a UNIX Platform 2 8 Cisco WAN Modeling Tools Guide 0L 10426 01 Rev AO E Contents Installing the SSI on a PC Platform 2 8 Removing Sub applications 2 9 Troubleshooting NMT Installation 2 9 cHAPTER 3 Using the NMT 3 1 NMT Startup 3 1 NMT Menu Bar 3 2 File Menu 3 3 Configure Menu 3 4 Execute Menu 3 7 Display Menu 3 7 Report Menu 3 8 Maintenance Menu 3 9 Help Menu 3 9 Quit 3 9 Keyboard Commands 3 9 Help Keys 3 11 Message Keys 3 11 Modeling Processes 3 11 Error Checking 3 12 Troubleshooting NMT 3 13 CHAPTER 4 Configuration Tables and Fields 4 1 General Table Information 4 1 Sites Table 4 2 Configuring Sites Example 4 6 Links Table 4 6 Minimal Link Table Usage 4 7 Link Special Cases 4 10 IMATM Trunks 4 10 Virtual Trunks 4 11 Voice Table 4 11 Data Table 4 14 Bursty Table 4 17 Bursty Table Special Cases 4 23 Interface Table 4 24 Feeder Table 4 26 B Cisco WAN Modeling Tools Guide 0L 10426 01 Rev A0 cHAPTER 5 cHAPTER 6 Card Table 4 27 Groups and Network Table 4 28 Nodes Table 4 29 Network Settings 4 29 Model Options 4 31 Feeders 4 32 Modeling Implicit Feeders 4 32 Modeling Explicit Feeders 4 34 Obsolete Products 4 35 Networks with Access Feeders or Access Concentrators 4 36 FastPAD 4 38 Port Concentrator 4 41 Tiered Networks 4 42 NMT Execute Commands 5 1 Using the Route Command 5 1 A
63. a that applies to the Paris site There are two ways to enter data 1 Press the Help key to see a list of choices Lists of choices are available for most fields that accept three or more non numeric values Make a selection using the cursor and press Enter 2 Type directly into the field Press the Delete key if you make a mistake Press the down arrow to insert a new line in the table Repeat Step 4 and Step 5 for Boston and Step 4 and Step 5 for Denver The Sites table should look like the one shown in Figure 4 1 Press Escape to accept the entries and return to the Configure menu Links Table The Links Table contains topological and cost information about every existing link or possible link candidate in the network Cisco WAN Modeling Tools Guide Chapter 4 Configuration Tables and Fields Minimal Link Table Usage Links Table MI For existing links the Keep field should be set to the number of existing links with the characteristics described in the record The Links command displays existing links and possible links considered for the network design The key fields in the link table are the site ends the trunk type and the keep field The primary CWM data source for the Links table is the link table The WANDL translation for the link table is the bblink file When translating from NMT to WANDL a fixlink file identical to the bblink file is created The Link Table fields are described in Table 4 3 Table 4
64. a valid entry for the field Not all fields have a choice list Message Keys Enter Ctrl w from any where in NMT to view working and error messages from your working session Modeling Processes The NMT models your configuration when you select one of the options under the Execute menu If there is any problem with your configuration a message box displays the following message New warning messages generated To check your warning messages enter Ctrl w 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide Chapter3 Usingthe NMT BE Error Checking The NMT generates three types of messages e L Log messages are generally displayed when the NMT records the command the user requested e Informational messages generally indicate that site or link parameters have been modified to comply with user entered data e W Warning messages are generally displayed when the NMT modifies connection data e E Error messages are generally displayed when the NMT cannot create a topology because of incorrect data The message box also keeps a log of the commands executed The message box always scrolls to the last viewed message An example of warning output is shown in Figure 3 6 Figure 3 6 Example of NMT Warning Output Network Modeling Tool 8 4 0 BID Number NHT204 Ver 8 4 0 Plant NoName W Link Table 2 Denver Boston Invalid capacity 24 changed to default value 28 W Link Tab
65. algorithms that are used in the switches Only those links that have a Links table Keep field value of 1 or more are used in the topology The Keep field in the Links table tells the system which links must be part of the final topology even if they have no traffic passing through them This selection performs two processes it builds sites and routes connections When modeling an AutoRoute network the following must be done in the CNF tables e Specify the type of AutoRoute algorithm used by each site in the Routing Algorithm RA field of the site table Enter H for minimum hoops for least cost or CD for least cost with delay e Enter Y in the AR field of the Link Table to enable AutoRoute on the links e Set the RT_Metrics field in the Bursty Connection table to AutoRoute Note The Model setting delay parameters can be adjusted if need be See Config Model Settings AutoRoute Least Cost Routing The Least Cost Routing feature introduces the concept of cost based routing into the interface It was developed to prevent selection of a route which exceeds an acceptable cost Refer to Table 5 1 for information on Least Cost Routing 0L 10426 01 Rev A0 Cisco WAN Modeling Tools Guide E Chapter5 NMT Execute Commands E AutoRoute Least Cost Routing Table 5 1 Least Cost Routing Configuration Topic Required Settings Comments Specifying a Least Sites table Any site can have a least cost or Cost Route R
66. ap Tool to Analyze Traffic Levels 8 14 Configuration Extraction Tool 9 1 Fields Addressed by CET 9 1 Using the CET 9 2 Other CET Commands 9 4 AIX Platform Support 9 5 Troubleshooting CET 9 5 Remote CET Extracts 9 8 Troubleshooting 9 10 WANDL Third Party Interface 10 1 Translating Between NMT and WANDL Formats 10 1 Converting NMT Configuration Files into WANDL Files 10 2 Cisco WAN Modeling Tools Guide 0L 10426 01 Rev A0 Converting WANDL Files into NMT cnf Files cHAPTER 11 SpreadSheet Interface 11 1 NMT to Microsoft Excel 11 1 Microsoft Excel to NMT 11 4 Usage Review 11 5 SSI TroubleShooting 11 6 cHAPTER 12 Cisco Network Designer Importer 12 1 CND PC Import Utilities 12 1 Installing the NMT2CND file 12 1 Nmt2Cnd Operating Instructions 12 2 Installing The DBF2Cnd Utility 12 2 DBF2Cnd Operating Instructions 12 3 CND PC Utilities 12 4 INDEX 10 4 Contents M 0L 10426 01 Rev A0 Cisco WAN Modeling Tools Guide E E Contents Cisco WAN Modeling Tools Guide Preface The Cisco WAN Modeling Tools User Guide provides instructions for using the WAN Modeling Tools a design aid for WANs The WAN Modeling Tools consist of the following software tools Network Modeling Tool NMT UNIX and PC versions are available Map Tool to display a graphical model of network topology Configuration Extraction Tool CET f
67. apter 4 Configuration Tables and Fields Field Defaults Table 4 12 Interface Table Port Specific Parameters continued Notes Description and Comments DBF CET Interface Table TPI Speed 0 O H Clock speed of the access port Values range from 56 to 2048 kbps for frame relay 3622 to 38336 for ATM on an AUSM on an MGX 8220 edge concentrator 80000 96000 or 353208 for ATM on a BPX depending on the type of port Note A port speed of 0 has no effect on the speed of the specified port SPEED Limitation Older devices the MC3810 and FastPAD are not supported Iftype 0 Interface Type Applies to MPSM connections only IF Lines 0 Number of T1 E1 lines in IMA port IMA L Frame Number of ATM cells in IMA Frame IMA F EngMinBw Minimum Cell Rate in egress transmit direction for the partition Zero value means no partitioning EGR_MIN_BW EngMaxBw Maximum Cell rate in egress transmit direction for the partition Zero value means no partitioning EGR_MAX_BW MinLCN 0 Minimum number of channels in the PNNI partition Zero value means no partitioning MIN_LCN MaxLCN 0 Maximum number of channels in the PNNI partition Zero value means no partitioning MAX LCN BF 0 Booking Factor used to calculate committed cell rate that contributes to the interface load Ranges are from 1 to 200 If 0 is speci
68. arly The directory path is shown in the bottom left of the window When you read in configuration files the path is updated to include the current filename You can also change the path to read and store files in other directories To save a configuration follow these steps Select Save or Save as from the file menu or select Write from the Configure menu Enter a name in the Enter Name dialog box See Figure 3 3 Press Enter Figure 3 3 File Save Window Network Modeling Tool 8 4 0 Conficuration files in current directory model Enter Name mae Mail NHT204 8 4 0 gt tmp NMT tutorial model lt F1 gt field help lt Esc gt exit lt F10 gt ebort SwSy Release 841 NM664 Configure Menu You can view the following tables from the Network Design Tools Error Checking option in the Configure menu e Sites Configuration for Network Sites having one or more WAN switches controllers and or feeders e Links Existing links and possible links considered for the network design e Voice Traffic Customer voice connections and T1 E1 emulation configurations Data Traffic Customer data connection information e Bursty Traffic Customer Frame Relay ATM and Circuit Emulation connection information e Interfaces Customer port assignment configuration and partitioning information e Feeders Customer access feeders configuration for feeders not specified in the site table e Card
69. at this site If blank this field defaults to the global value defined in the Model Settings SW_REL PC Blank Processor card If Blank use the latest NPC From card table Default value used until Release 9 1 Red Redundancy Y site has redundant components N site does not have redundant components RED Cab TI Cabinet Specifies cabinet type T1 American or Far Eastern E1 European CABINET Power P H Power supply AC DC DFM Data Frame Multiplexing Y site uses DFM N site does not use DFM If a data connection terminating at this site has a DFM setting of Y it takes precedence over the site setting DFM S R Save Restore Y site uses save restore configuration software N site does not use save restore configuration software S R FrFac Frame Relay Factor Multiplier to account for frame overhead on the IPX Mux Bus The 1 14 default is an IPX legacy setting FR FAC Bundle 24 Maximum number of connections that can be routed simultaneously Default is 32 choose between 1 and 29 BUNDLE Modem Percentage of modem traffic on voice connections originating at this site MODEM_P CT I 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide B Chapter 4 Configuration Tables and Fields HI Sites Table Field Defaults Table 4 1 Notes Site Table conti
70. ata connections CONNS Since slot and port are included this field is always set to 1 Type 56 E H Data rate such as 19 2 or 19 2f for fast TYPE EIA for example interleaved data and D Derived heuristically event bytes ie Modifier F not available until Release 8 1 nx64 nx56 shown as the resulting product starting with Release 9 1 E2E TY SPVC M The end to end type of the connection E2E PE PVC SPVC XPVC Hybred and 1 Ended i Coded are all valid C PVC S SPVC H Hybred X XPVC E Single ended EIA 2 2 O Maximum signalling sampling rate Oto BIA1 20 times per second EIA2 Cd 8 O Encoding format 7 for 7 8 coded data CODE and 8 for 8 8 coded data Connections of Defaul d d 1 344 Mbps or higher require 8 8 Se Sen Release 7 2 PR 0 O Rerouting priority 0 to 15 with 0 the COS Defaults used prior to highest rerouting priority Release 8 5 Ad O H Restriction type AVD Red N P Redundancy Specifies whether data RED connections are going to be redundant Applies to CDP SDP and LDP Y cable redundancy DFM N O Data Frame Multiplexing DFM Y connection requires DFM When connections have DFM the site value is ignored N connection does not use DFM Default used until Release 7 2 I OL 10426 01 Rev AO Cisco WAN Modeling Tools Guide H Chapter4 Configuration Tables and Fields E Data Table Table 4 7 Data Table continued
71. ate Options Utility NM676 Creating a Graphical Display To create a graphical display of a new configuration perform the following steps Step 1 Select Map from the Display menu and drag the Map window to a suitable location on your screen It may take several seconds for the Map window to display N Note Select Map tool menus by using the left mouse button except where noted Step2 Choose Update from the menu bar and click on Update Map to import the most recent configuration Step3 Choose Map from the menu bar in the Network Design Topology window and click Select to choose a map appropriate to your configuration Step4 Drag each node to its approximate location on the map The node icons colored squares are stacked in the upper left corner of the window Place your cursor over a node hold down the left mouse button and drag the node into place Repeat this step for each node Stepb To save your map choose Utility from the menu bar and select Save Using the Map Tool with Fail Analysis After performing a failure analysis click on Update in the map window menu bar and select Update Map Any site that did not reroute a connection for any of the link failures turns red Cisco WAN Modeling Tools Guide I 0L 10426 01 Rev AQ HN Chapter6 NMT Reports B Usingthe Map Tool Using the Map Tool to Analyze Traffic Levels Click on the Options menu and select Thresholds See Figure 1
72. base so there is an asterisk in the site row of the CET column in Table 4 1 The asterisk indicates that the field is translated as described in the legend above If the translation is more complex it is described in the CET or TPI column 0L 10426 01 Rev A0 Cisco WAN Modeling Tools Guide Bg Chapter4 Configuration Tables and Fields HI Sites Table Sites Table The sites table contains information about all sites in your network All other tables using the sites field rely on the information in this table To display the sites table select Site from the Configure menu The two most important fields of the site table are the site name and the node type field The site name field defines the label string of the site and must be valid and unique The node type field defines what kind of switch is at this location Use the NMT Site Table to explicitly specify all feeder equipment in the MGX BPX and IPX products You can also provision feeders and additional routing IGX shelves as required by the connection demand Figure 4 1 NMT Network Sites Table Network Modeling Tool 8 4 0 S S SG E Network Sites Site Type Size Used Fdr HEP Red Cab Power Eth DFM S R VNS FrFac Bundle Modem EC Domain JN IGX BC FC RLC Paris IGX 32 N Y Y Ti D Y WN WN NW 1 14 32 0 Y N N ENC Y Boston IGX 16 N Y Y Ti A Y NH WN N 1 14 32 0 Y N Y T1 NIH N Denver IGX 8 N Y Y Ti A Y NUNN 1 14 i 0 Y N Y BBD N nS g NMT204 8 4 0 gt tmp NMT tu
73. ble Cisco WAN Modeling Tools Guide I 0L 10426 01 Rev AO EN Chapter3 Usingthe NMT i File Menu Utilities Use the Utilities in the Config menu to make bulk changes to the CNF file Edit Options Expand Quantities For all records for quantity field value of greater than one change the quantity value to one and duplicate the record the number of times that appeared in the quantity field Table Conn Merge Merges connections with identical parameters into one table record increasing the quantity field An additional feature enables you to set the options to average the traffic values to further reduce the table record count Order Table Data Options for sorting the CNF tables by site name Rename or Merge Site Modify site names Group Rename or Merge Modify group names Adjust Util Modify the util fields in the connection tables Mesh Data Add new records such that link or connection tables are fully meshed Options determine how the mesh is to be done The weight field in the site table can be used in several ways to affect the outcome of the mesh VH Coordinates Utilities to create VH coordinates for the map display Path Expansion Update paths with complete slot port information Diff Pref Route vs Cur Compare all preferred routes to the existing routes in the CNF file Clear Data Reset or blank out various fields in the CNF file Upgrade Implicit After running R
74. can use the NMT default values in almost all cases to get familiar with the modeling process There is no order requirements in these tables Use the CONFIG UTILITY to sort the table entries automatically General Table Information The following legend refers to the Notes column in the tables that follow Refer to this legend when deciding whether to edit an NMT default value e M Mandatory If you are revising this table you must revise this field e E Evaluate If you are revising this table you should consider revising this field For instance this field may require modification if you are working with a tiered network an ISP a network that requires highly regulated bandwidth or one in which cost factors must be highly regulated e O Optional If you are revising this table you need not revise this field Defaults are generally suitable e P Parts Required for generating an accurate parts list e H Help Press F12 or the Help key to call up a list of choices e X Entries generated by the NMT that cannot be edited The DBF column lists the DBF field name and any additional translation information There are also columns for the CET CWM and TPI WANDL translations An asterisk in the Configuration Extraction Tool CET column or the Third Party Interface TPI column indicates that the CET and or the TPI supports a particular field For instance the CET extracts site names from the Cisco Wan Manager CWM data
75. ction Hub ID values can be Slot Port e g 12 2 Zero indicating no unique port constraint Modeling Explicit Feeders To allow the NMT to model explicit feeders enter the following information about the feeder site into the Site table link connecting the hub and feeder in the Link table connection interfaces in the Traffic tables as if the node were not a feeder For explicit feeders connection endpoints are the feeder nodes IGX and IPX nodes can be modeled as either hub or feeder nodes The MGX 8820 can only be modeled as a feeder Beginning with NMT 9 2 the MGX 8820 can be an explicit feeder as well as an implicit feeder The MGX 8850 is also modeled in NMT 9 2 As a feeder node the MGX connects to the BPX If modeled as a feeder The MGX 8850 node must be explicit Cisco WAN Modeling Tools Guide Chapter 4 Configuration Tables and Fields Obsolete Products Refer to Table 4 20 for information on modeling an explicit feeder tiered network with the NMT Table 4 20 Tiered Network Configurations with Explicit Feeders Topic Required Settings Comments Explicit Feeders General Instructions Model Settings table Make sure that the value of Switch Software Release is set to the release that is to be modeled Site Table Node Type field Enter IGX IPX BPX MGX8220 MGX8850 or any other valid Node Type Fdr field Enter Y PC field Leave blank for all nodes exce
76. d If the end has a FastPAD enter the connection interface on the line side of the FastPAD S R V V1 or V6 If the end does not have a FastPAD leave this field blank card At least one end of the connection must have an entry in the Fdr BC 0L 10426 01 Rev A0 Cisco WAN Modeling Tools Guide H Chapter 4 MH FastPAp Table 4 22 FastPAD Configuration continued Topic Required Settings Comments Setting Up Switched Voice Traffic table To add FastPAD switched voice Voice Connections Connect the BastPADs connections i e voice connections Quantity field Set the number of connections between a pair of FastPADs to the estimated peak number of simultaneous calls between the two destinations Type field Enter Session BC Back Card field Select valid FTC back card V X T1 or E1 Fdr BC Feeder Back Card field Leave blank Create dummy FastPAD connections Site 1 Site 2 fields Connect a site entered above to itself e g Boston Boston HubID fields Optional Hub 1 ID and Hub 2 ID can be used to specify the slot port of each end of the connection Connect a site entered above to itself e g 8 1 8 1 This connection is intersect intracard and interport Quantity field The number of dummy connections should equal one half the peak number of simultaneous calls expected between the FastPAD and all other switched voice destinations Type field Enter the voice traffic spee
77. d a cnf file and print a short summary of the network characteristics Use this command to review old cnf databases summarize a file you received from another user or check a CET extraction dbf2csv dbffile Converts a dbf file to a csv common separated value file sniffdbf dbffile Give a brief summary of the contents of a dbf SSI file rensite cnffilel cnffile2 osite nsite Rename a specific site in all tables and write the resulting file enftrep cnffilel cnffile2 cnffile3 Read two cnf files take the Links table from one file and all other tables from the other and write the resulting network as a third file An option allows the command to replace any table except for the Site table enfupdat cnffile1 cnffile2 Update the cnf file to the latest format and perform all logical changes such as updating hub IDs to new format changing ATF to FTA where appropriate and applying relevant information from previous NMT upgrades enfecho cnffilel cnffile2 Update the cnf file to the latest format but perform no logical changes Also has options to modify the data enfexpn cnffilel cnffile2 Update the cnf file duplicating all connections where the quantity field is greater than 1 Default is bursty only though any or all connection tables can be specified This command is necessary if you want to do grouping and have quantity fields in the bursty table with values greater than 0 0L 10426 01
78. d from the FILE VIEW SUMMARY menu This report gives you an overview of the input plan CNF file You can run this report without running the ROUTE or OPTIMIZE execute command The output of the View Summary can also be displayed with the sniffenf command from the UNIX CLI The utility command has options for displaying summary information for all or specific site locations See the Utility Commands section for more information Using the Map Tool The network topology map provides a useful tool for visualizing your network model The map tool provides the following features e Graphical display of the topology e Help for conducting fail analysis e Allows you to visualize traffic levels Start the map after running an NMT command for example route optimize or failure analysis If you rerun an NMT command select Update on the map to view the new results The map tool includes several menus described in Table 6 1 Cisco WAN Modeling Tools Guide 0L 10426 01 Rev AQ HN Chapter6 NMT Reports W Usingthe Map Tool Table 6 2 Map Tool Menus Menu Bar Selection Description Map Map Show or hide the map Select Select a map Update Update Map Import the latest configuration Options Thresholds Define thresholds at which traffic is considered excessive critical or close to excessive warning Black and White Display the map in black and white Utility Reset Clear the map About Describe
79. d type Fdr BC Feeder Back Card field Enter V for the VFC 03 card between at least one voice card on a FastPAD connected to at least one voice card on many FastPADs you must perform a two step process connect the FastPADs and add dummy FastPAD connections Setting Up Multiple Data Traffic table Voice Traffic table Bursty Traffic table For connections between multiple FastPADs at the Hub ID field The ID is given to the port of the FTC FTM card on the FastPADs ata site or to associate Same Site IPX IGX switch that connects to the specific FastPAD ID values can be specific connections with specific FastPADs use the Hub ID field for all Port only 0 FastPAD connections that originate or Slot and port mm nn terminate at that site Where mm 1 to 32 and nn 1 to 31 All connections associated with one specific FastPAD should have the same Hub ID throughout the three traffic tables Changing Default Feeders table You can specify a FastPAD or Parameters FastPAD micro unit and can specify Hub ID field Enter Slot Port e g 6 4 Type field Enter FP 4 for a FastPAD Micro FP 8 for a regular FastPAD or FP to have the NMT determine which one to use Speed field Enter the speed you want Data Traffic table Voice Traffic table Bursty Traffic table Hub ID field Enter the Hub ID value entered in the Feeders table e g 6 4 Hub 2 ID field Enter the Hub ID for the appropriate site the maxim
80. dministration of a connection created by the Connection Manager in CWM Rt Metrics AutoRou M How the connection is routed Use RT MET AW assumed te AutoRoute for AutoRoute The type of for MGX autoroute used will be determined by the D c Autorouie 8850 Release AR field in the site table for end one Use W PNNI Least 2 AW CTD or CDV for PNNI routing AW Cost routes strictly based on administrative D PNNI Delay weights CTD considers delays and CDV considers delay variance E PNNI Delay with variance Cost 100 O Maximum cost allowed for the Autoroute MAX_COST least cost routing path for this connection DR N O Direct routing Indicates that the connection DR must use the preferred route provided If it cannot use the preferred route the connection should not be routed Preferred O The preferred route of the connection The Route is stored in Not available Route first and last routing site are optional and all 19 fields until Release feeder sites are optional An equal sign 7 2 Specific separates the site names Specific links are PRZSITES Trunk not specified by the slot port for the incoming PR SITE3 available until and or outgoing port PR SITEA Release 8 1 z Current route not available PR_SITE20 for SV release 8 1 or 8 2 Routes are not available on PNNI networks I 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide B Chapter 4 Configuration Tables and Fields E B
81. ds in the NMT working directory If you are on a Cisco StrataView platform while logged in as Cisco Wan Manager CWM and in the svplus directory enter the xhost command to grant xwindows permission This can be done from the console window or an xterm window xhost N Note You may want to add the xhost command to the svplus login file Enter your user name and enter your password to log in to your user home directory For example usr users my name Cisco WAN Modeling Tools Guide Chapter2 Installing the Cisco WAN Modeling Tools Step 3 Step 4 Removing NMT W Enter the cd command to move to one of your project directories cd project_name Enter the nmt command to start NMT nmt N Note Use the nmt d command to start the program if you need to modify system parameters to ranges outside the scope of the current product line This option adds two additional selections to the Execute menu Internal Set for Switches Links and Network Internal Setting Removing NMT The nmtrei command removes all NMT subcomponents from the program Installing a Cisco WAN Modeling Tools Sub application This section provides instructions for installing the following Cisco WAN Modeling Tools sub applications the Configuration Extraction Tool CET the Third Party Interface TPI the SpreadSheet Interface SSI To install the sub applications on a UNIX platform see the Installing the Cisco W
82. e Step 1 Step 2 Step 3 Step 4 You cannot obtain a remote CET extract from a PC To configure the workstations for remote data extraction follow these steps Set the environment variable INFORMIXSERVER to the hostname of the remote host That is issue the following Unix command setenv INFORMIXSERVER lt remotehostname gt Setup your local host with an Informix sglhosts entry for the remote host a Edit your usr users informix72 etc sqlhosts file b Adda new entry of the following form filling in the blanks remotehostname ontlitcp remotehostaddr informix istar S Note remotehostaddr is the IP address of the remote host but if you can ping the remote host by name you can alternatively use the hostname of the remote host Whichever you choose use the same remotehostaddr in the two steps below Setup your local host for friendly ftp access to the remote host s svplus userid a Edit or create the netrc file in your home directory b Adda new entry of the following form filling in the blanks machine lt remotehostaddr gt login svplus password password S Note password is the password to the svplus account at the remote host Therefore your netrc file should not allow others to read it You can use the Unix command chmod 600 netrc Setup the svplus userid on the remote host to allow remote shell access from your local host a Remotely log on to the remote h
83. e netw_name directory before running the command again Enter the following command to format the above extracted data into a cnf file named netw_name cnf which you can read into NMT If the command fails or generates warning messages view the file netw name cet2nmt con for a summary of the data analysis problems cet2nmt The cet2nmt gt options netw name is the name of the directory you created The cet2nmt has an option to extract a single domain or several domains from the CWM DB If your CWM is monitoring multiple AutoRoute networks or multiple PNNI peer groups you may extract a single or multiple domains using the network option The syntax is as follows cet2nmt etw name network domain name Multiple domain names can also be specified as shown in the following example cet2nmt etw name network domain namei domain name2 gt The cetZnmt has an option to create the cnf file with different then netw name plan name That option can be very usefull when user creates several plans with dufferent options The syntax is as follows cet2nmt A etw name o lt myplan gt In this case the utility will produce file myplan cnf Cisco WAN Modeling Tools Guide Chapter9 Configuration Extraction Tool Step 4 Using the CET W This step is optional If manual corrections are required on the output CNF file you can make them once and then automatically make them again with the adj2n
84. e network s resiliency NMT Startup If you are running NMT on a UNIX platform start the NMT by entering the command nmt This launches an xterm window for the NMT interface Figure 3 1 If you are running NMT on a PC platform start the NMT by clicking on the nmt exe file located in the NMT bin subdirectory This launches an xterm window for the NMT interface 0L 10426 01 Rev A0 Cisco WAN Modeling Tools Guide Bg Chapter3 Usingthe NMT E NMT Menu Bar Figure 3 1 NMT Main Window 3 Network Modeling Tool 9 2 0 BEE NHT2046 9 2 0 gt usr users svplus nmt w920 Netuork1 SuSu Release 920 28536 NMT Menu Bar The menus in the NMT main window contain selections for inputting data that describes the existing or proposed network These menus also provide selections for generating optimized configurations and many different types of reports See Figure 3 2 The menus are as follows e File Contains choices for opening closing deleting and saving your file It also provides options for importing and exporting files to other formats changing paths and viewing a summary of your network e Configure Contains choices for describing the network model including site names links and traffic types e Execute Provides choices for analyzing and optimizing the network model e Display Shows predefined reports describing the sites links required hardware error messages and warnings and much mo
85. e supported by the BPX service node Interfaces supported by the NMT include the following Frame Relay ATM User to Network Interface UNI Circuit emulation nx TI El inverse multiplexing for ATM IMATM AUSM 8 UNI 3T3 interface using the SRM 3T3 module BPX switch A standards based high capacity 9 6 Gb broadband ATM switch that provides backbone ATM switching and delivers a wide range of user services Fully integrated with the IPX and IGX switches the BPX switch provides broadband ATM services when ASI and BXM cards are used It also provides a variety of narrowband services these services are provided by tiered network configurations that use IPX switches and MGX 8220 feeders The BPX switch supports the high density Broadband Switch Module BXM cards that provide standard interfaces for connecting to cell based equipment by way of the ATM User Network Interface UNI BXM DS3 E3 supports E3 DS3 native ATM access and trunk ports BXM 155 supports OC 3 STM 1 native ATM access and trunk ports BXM 622 supports OC 12 STM 4 native ATM access and trunk ports BXM cards also support ATM Frame Relay networks and services and enables configuration of permanent virtual circuits PVCs or switched virtual circuits SVCs for the following defined service classes Constant bit rate CBR Variable bit rate VBR Unspecified bit rate UBR Available bit rate ABR SES PNNI Controller Attaches to a
86. ead file 3 4 Receive rate field 4 8 Redundancy field 4 3 4 8 4 12 4 15 4 20 Redundant link card field 4 4 Reserve field 4 8 resilient links 5 4 Restriction type field 4 12 4 15 4 20 Routing 5 3 Routing Connections message box 5 5 S Save Restore field 4 3 savefile 3 4 Share Redundancy field 4 32 Signalling type field 4 12 Site field 4 2 4 7 4 14 4 18 4 24 4 26 SNMP connection index field 4 21 Speed field 4 25 4 26 SpreadSheet Interface See SSI SSI how to use 11 1 schematic overview 11 3 0L 10426 01 Rev A0 Cisco WAN Modeling Tools Guide H MH index StrataView Plus importing from 9 1 svp2cet command 9 2 switch software version 3 5 T table scan 3 12 tar2nmt command 11 4 Third Party Interface See TPI Thresholds dialog box 6 8 tiered networks explicit feeders 4 35 IPX IGX feeders 4 33 MGX 8220 feeders 4 33 TPI schematic overview 10 2 TPI how to use 10 1 tpi2nmt command 10 4 Trunk Card field 4 7 Trunk utilization field 4 12 Type field 4 2 4 12 4 15 4 18 4 26 U Used field 4 2 4 8 Use Hub ID field 4 31 Utilization percent field 4 19 V Virtual Trunk Rate field 4 8 virtual trunks 5 4 Virtual Trunk Type field 4 8 Ww WANDL 10 1 warning messages 3 11 H Cisco WAN Modeling Tools Guide 0L 10426 01 Rev AO
87. ebsite See MGX Switches http www cisco com en US products hw switches tsd products support category home html Refer to these MGX technical manuals as appropriate For planning information if your network contains MGX and SES products Cisco PNNI Network Planning Guide for MGX and SES Products e For information about installing cards and cables in the MGX chassis Cisco MGX 8850 PXMIE PXMA45 Cisco MGX 8950 and Cisco MGX 8830 Hardware Installation Guide Releases 2 Through 5 for installing cards and cables in these chassis Cisco MGX 8xxx Edge Concentrator Installation and Configuration Guide for installing cards and cables in the Cisco MGX 8230 Cisco MGX 8250 or Cisco MGX 8850 PXM1 chassis e For configuring your MGX switch and processor cards Cisco MGX 8850 PXMIE PXM45 Cisco MGX 8950 and Cisco MGX 8830 Configuration Guide Release 5 for these chassis Cisco MGX 8xxx Edge Concentrator Installation and Configuration Guide for the Cisco MGX 8230 Cisco MGX 8250 or Cisco MGX 8850 PXM1 chassis You can also use Cisco com to search for any product and topic by entering a word or phrase in the Search window For example you can search for configuring MGX 8850 or PXMIE By using the Advanced Search option you can search the entire Cisco com or Technical Support amp Documentation Obtaining Documentation Cisco documentation and additional literature are available on Cisco com Cisco also provid
88. ectory under your home path called tmp If you want NMT to use a different directory than tmp for scratch work you can specify it with the full path by using the environment variable NMTTMP Note Cisco recommends that you periodically remove old files from the tmp scratch work directory NMT must not be running when you remove files from this directory Figure 2 1 depicts the relationship between the NMT software user and project accounts Figure 2 1 Example of suggested NMT Directory Structure usr users porem NMT User 1 User 2 imp Project Project 2 6034 Cisco WAN Modeling Tools Guide Chapter2 Installing the Cisco WAN Modeling Tools Installing the NMT MI Installing the NMT on a PC Platform Step 1 Step 2 Step 3 Step 4 To install NMT on the PC follow these steps Run the provided nmt installing exe file which is a self extracting ZIP file The file is called nmt_inst exe and is in the PC directory You can either run it directly from your CD drive on the PC or transfer it from your UNIX installation to your PC and then run it The zip file will unzip in c nmt by default It is recommend you keep this as the NMT installation directory If you accept this selection move to step 3 If you wish to change the installation directory use one of the procedures that follow To change the insta
89. eling Tools Guide Bg Chapter8 NMTMap WE NMT Map Main Menu Figure 8 8 NMT Report Menu Set Options Screen Report Variables Price Option Detail Reports 1 Output DBF Reports Output Pref Rte t Output Map Info Map Explicit Nodes N Map Implicit Nodes N 49074 NMT1347 9 3 0 gt auto nmt wip jam nmtwork w921sol duh SwSw Release 920 lt F1 gt field help lt Esc gt exit lt F10 gt abort NMT Map Main Menu 8 8 The NMT Map menu bar can contain up to eight pull down menus for controlling map configuration Figure 10 9 Figure 8 9 NMT Map Main Menu Network Design Topology NMT1347 File Access Groups Background Topology Options Help 49163 Each pull down menu is described in detail below e File Contains choices for exiting the map and saving your work e Access Contains choices for adding and deleting access feeder nodes to the map display Groups contains choices for viewing networks having groups adding or deleting groups and changing the nodes contained in a group e Background Contains choices for selecting and displaying background images e Topology Contains choices for updating and clearing the map e Options Contains selections for coloring the Map display Messages Allows viewing of error messages N Note This menu appears only when there are error or status messages to view Help Contains choices for obtaining information about the map a
90. er Delay This pertains to PNNI networks Too Big CDV Connection cannot be routed without exceeding the maximum Cell Delay Variance This pertains to PNNI networks Too Big CLR 0 Connection cannot be routed without exceeding the maximum Cell Loss Ratio of the first phase of policing leaky bucket This pertains to PNNI networks Too Big CLR 0 1 Connection cannot be routed without exceeding the maximum Cell Loss Ratio of the second phase of policing leaky bucket This pertains to PNNI networks I 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide B Chapter6 NMT Reports Table 6 1 Failed Connection Reasons continued Reason String Meaning Too Big Delay Connection cannot be routed without exceeding the maximum delay This pertains to AutoRoute networks No CellBase Path Connection cannot be routed without being converted to FastPackets on older equipment but the connection is not permitted to be converted to FastPackets No ATM Path ATM connection cannot be routed without using trunks that do not support ATM types of load on older Fastpacket equipment No COS Path No path to support Class of Service connections This pertains to PNNI networks Transit Rstr No path that would not have via nodes configured as transit restricted This pertains to PNNI networks Media Restricted Connection can only be routed using a restricted media for instance a satellite link Parts List Rep
91. er adding a connection BC V V M H Back card Type of back card See Help or BC1 x Jk F12 key for choice list BC2 SL back cards are shown as SM number of lines on FRM back card is determined heuristically based on ports used and port speeds Until Release 9 1 heuristic was based on ports used connection type and port speeds 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide H Chapter4 Configuration Tables and Fields E Bursty Table Table 4 8 Bursty Table continued Field Defaults Notes Description and Comments DBF CET TPI FrontCard O Front card In some cases multiple front FCI Only filled in cards can support a service on a platform for FRSM HS FC2 In those cases you can specify the front cards card you want Application blank O Only required for VISM connections APP Describes if the connection is a Bearer or a Si i Values are blank ignalling connection B Bearer or S signalling Fdr1ID 0 E Feeder 1 hub ID The slot port address on FDR_IDI the MGX 8220 3810 or FastPAD at Site 2 FastPAD and if any Slot represents both the slot and line MC 3810 Enter 0 for NMT to assign feeders not supported Fdr2ID 0 E Feeder 2 hub ID The slot port address on FDR ID2 the MGX 8220 3810 or FastPAD at Site 2 sa dee FastPAD and if any MC 3810 feeders not supported FdrBC E H Feeder back card the line interface type at FDR INT1
92. es from the Execute menu allows you to provision the sites without routing the connections You have the option of building all sites or one specific site If all links and connections are not provisioned the command will display link and connection ends that could not be built Cisco WAN Modeling Tools Guide Chapter5 NMT Execute Commands Optimize Command W Optimize Command The NMT provides several tools for optimizing network models that allow you to create a least cost topology with selected links When you select Optimize from the Execute menu the NMT processes your configuration to design a least facilities cost network The Optimize command eliminates unused links links that are not used for routing traffic from the topology Although the unused links are eliminated from the topology they remain in the links table for possible later use The process works as follows 1 The system calculates all possible topologies and selects the one in which all traffic is routed at the lowest possible cost During this process the Optimizing Topology message box displays a running tally of the number of topologies tried the last two most recent costs and the least cost so far If a connection fails the router breaks the routing loop Initial Topology is the starting point for building all other topologies that the optimizer can generate and analyze It is generated from your specified data including all sites links that have positive
93. es several ways to obtain technical assistance and other technical resources These sections explain how to obtain technical information from Cisco Systems Cisco WAN Modeling Tools Guide Preface Cisco com Documentation Feedback lii You can access the most current Cisco documentation at this URL http www cisco com univercd home home htm You can access the Cisco website at this URL http www cisco com You can access international Cisco websites at this URL http www cisco com public countries_languages shtml Documentation DVD Cisco documentation and additional literature are available in a Documentation DVD package which may have shipped with your product The Documentation DVD is updated regularly and may be more current than printed documentation The Documentation DVD package is available as a single unit Registered Cisco com users Cisco direct customers can order a Cisco Documentation DVD product number DOC DOCDVD from the Ordering tool or Cisco Marketplace Cisco Ordering tool http www cisco com en US partner ordering Cisco Marketplace http www cisco com go marketplace Ordering Documentation You can find instructions for ordering documentation at this URL http www cisco com univercd cc td doc es inpck pdi htm You can order Cisco documentation in these ways Registered Cisco com users Cisco direct customers can order Cisco product documentation from the Ordering tool http w
94. et Interface SSI Conversion Plug in which translates network design information between NMT and a Microsoft Excel compatible format SSI requires that you use Microsoft Excel Version 6 2 or later This chapter contains the following sections e NMT to Microsoft Excel e Microsoft Excel to NMT The SSI plug in converts the cnf file into its component tables and saves them as dbf files the SSI then tars archives the file for easy transfer to a PC or Macintosh platform The SSI provides a PC toolkit to translate the spreadsheet files back into the cnf file format readable by NMT See for a schematic overview of the SSI process The MS Excel translation can be done from within the NMT or from the UNIX Command Line Interface CLD NMT to Microsoft Excel N To write to the spread sheet interface directly from NMT go to the FILES EXPORT menu and select DBF Files Note N To write to the spread sheet interface from the UNIX CLI use the nmt2tar and tar2nmt commands If you are on the UNIX version you will be prompted if you wish to have a tar file made of all the DBF files for easier transport to PC Note This section is for the UNIX Command Line Version of SSI on a UNIX OS For a PC version of NMT use the File lt Import Export menu to read and write to DBF files Copy the SSI Macro to the XLStart directory for the load and unload commands 0L 10426 01 Rev A0 Cisco WAN Modeling Tools Guide H Chapter 11 S
95. etween two nodes specify the one NMT should use You do not have to specify each Xcon to the same level of detail one may have no PortID the next both PortID etc For a connection from Denver to Paris the following are all valid preferred routes Paris 3 1 Paris Denver Paris Denver 4 1 Paris Denver 4 1 3 1 Paris Denver Paris 4 1 Denver Paris 4 1 Denver 4 1 Paris 4 1 Denver 3 1 4 1 Paris Denver 3 1 4 1 Boston 3 1 4 1 Paris Note NMT provides help entering preferred routes When you press the Help key while in the preferred route field NMT shows all the valid trunks between nodes Select the one you want by pressing Return When you press the Help key again NMT shows all the valid trunks to other nodes A suggestion first model your network without preferred routes Then open the map Now go back to configure your connections for preferred routes You will be able to see which trunk to pick based on the map See Table 5 1 for more information on modeling preferred and directed routes Cisco WAN Modeling Tools Guide Chapter5 NMT Execute Commands Table 5 2 Preferred and Directed Route Configuration Topic Required Settings PNNI Routing MI Comments Modeling Preferred or Directed Routes Voice Data and Bursty Traffic tables DR field Enter Y if the connection has the directed routing feature and N otherwise Preferred_Route field Enter a series of node cross connects separated by e
96. f new group OK Cancel Step4 Enter the group name and click OK The node name is replaced by the group name and the node icon is replaced by a group icon a circle See Figure 8 11 Figure 8 11 Map Display After Adding a Group Network Design Topology NMT13473 File Access Groups Background Topology Options Help ipx6 gx ipx5 WP WEST REP A opx1 a P ipx2 ipx8 ipx B H d x jpx8 ni amp L E Cisco WAN Modeling Tools Guide EXN OL 10426 01 Rev AO Chapter8 NMT Map Adding Nodes to Existing Groups MI Adding Nodes to Existing Groups Step 1 Step 2 Step 3 Step 4 A To add a node to existing groups perform the following steps Select Groups from the Main Menu Select Add to from the Groups Menu The cursor changes to a ring resembling a group icon with a hole in it Select the group to which you want to add a node Center the cursor over the group icon and click the left or right mouse buttons The cursor changes to a square with a dot inside resembling a node icon Select the first node which you wish to add Center the cursor over the node icon and click the left or right mouse buttons The node disappears and any links to it terminate at the group icon See Figure 10 12 Continue adding the rest of the nodes to the group in the same manner Figure 8 12 Map Display After Adding a Node to a Group Network Design Topology NMT13473 File Access Groups
97. fied the globally assigned value is used for this connection This applies to PNNI connections only and is similar to Util for Autoroute connections BF Partition Specification of the partition that most of the remaining fields in this table apply to Blank entry refers to the whole port AutoRoute PNNI or MPLS can be specified If multiple MPLS partitions MPLS2 can be used for the 2nd MPLS partition PART 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide B Chapter4 Configuration Tables and Fields E Feeder Table Table 4 12 Interface Table Port Specific Parameters continued Field Defaults Notes Description and Comments DBF CET TPI IngMinBw 0 0 Minimum bandwidth in cps inthe ING MIN BW ingress receive direction reserved i for this partition Zero value means no specification IngMaxBw O 0 Maximum bandwidth in cps in the ING MAX BW ingress receive direction reserved for this partition Zero value means no specification AW 0 0 Administrative weight for PNNI AW Overrides the AW value specified in the link table A value of 0 is ignored Note The field only applies to PNNI Feeder Table The Feeder table contains topological information about feeder connections in the network Table 4 13 Feeder Table Field Defaults Notes Description and Comments DBF CET TPI Site M H Site name SITE d Port ID 0 E Slot p
98. figuration under a new name e Import Reads configuration data from other formats and imports it into the current file DBF Import topology from DBF tables and the SSI MS Excel Interface WANDL Read the topology from the set of WANDL files specified by their SPEC file MAP Read any changes made with the Map interface back into the CNF file S Note Save changes in the map interface before importing that Map interface into the CNF file e Export Writes the configuration data to other formats DBF Output table in DBF format for SSI MS Excel Interface WANDL Output topology in WANDL format for Further optimization and analysis CSV Output Tables in comma separation values e Read 2nd CNF Merges all or some tables of one configuration file into another This enables you to perform certain operations on two separate configuration CNF topologies For example updating the fields in one CNF table automatically updates the same fields in other CNF tables You can also use this option to compare two CNF files e Delete Erases the configuration file Change Path Changes the current directory path I 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide B Chapter3 Usingthe NMT E File Menu View Summary Shows a summary of the current topology Report Site Shows a summary of a specific site Saving Configurations Step 1 Step 2 Step 3 Save your configuration regul
99. filiates in the United States and certain other countries All other trademarks mentioned in this document or Website are the property of their respective owners The use of the word partner does not imply a partnership relationship between Cisco and any other company 0601R Cisco WAN Modeling Tools Guide Copyright O 2006 Cisco Systems Inc All rights reserved Preface ix Related CWM and Switch Documentation ix Obtaining Documentation x Cisco com xi Documentation DVD xi Ordering Documentation xi Documentation Feedback xi Cisco Product Security Overview xii Reporting Security Problems in Cisco Products xii Obtaining Technical Assistance xiii Cisco Technical Support Website xiii Submitting a Service Request xiii Definitions of Service Request Severity xiv Obtaining Additional Publications and Information xiv cHAPTER 1 Overview of the WAN Modeling Tools 1 1 Cisco WAN Modeling Tools Overview 1 1 Functionality of the NMT 1 2 Cisco Products Supported by the NMT 1 3 Basic Usage Charter Functionality 1 4 Gaps 1 5 Data Translation Tools 1 6 cHAPTER 2 Installing the Cisco WAN Modeling Tools 2 1 System Requirements 2 1 Installing the NMT 2 2 Installing the NMT on a UNIX Platform 2 2 Installing the NMT on a PC Platform 2 5 Upgrading the NMT Software 2 6 Starting the NMT 2 6 Removing NMT 2 7 Installing a Cisco WAN Modeling Tools Sub application 2 7 Installing the Cisco WAN Modeling
100. ge that your project has been renamed to Project lt n gt Bring the nmt2cnd window to the foreground while you wait for a message box displaying the status of the load This message will tell you how many parts were accepted and rejected from the load N Note This step could take 5 minutes or more for large networks and there is no feedback as to the status yet Click OK You can now use CND to explore what you ve loaded Before modifying the project further close nmt2end S Note Do not close CND directly and do not close the project or open other ones When you are done working on the CND close nmt2cnd which will close CND You can then reopen CND and work normally Installing The DBF2Cnd Utility The DBF2CND utility is located in the nmt bin directory on your hard drive Before starting the DBF2CND utility move the SSI macro from the c nmt ssi directory to the c program files Microsoft Office Office XLStart directory If Excel is running shut it down and restart it Cisco WAN Modeling Tools Guide Chapter 12 Cisco Network Designer Importer CND PC Import Utilities BEI DBF2Cnd Operating Instructions Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 Step 9 To run the DBF2Cnd utility follow these steps Click the SSI macro to start MS Excel Create an Excel workbook with the following files 1 asites sheet The Site sheet must have two columns Name Site name up t
101. h to the MC3810 T1 o The minimum speed for synch data is El V or X 19 2 kbps For legacy data like Fdr BC Feeder Back Card field Enter the connection interface on the line HDLC use the Bursty Traffic table side of the MC3810 Adding MC3810 Voice Traffic table MC3810 dedicated voice connections ie Type field Enter C32 A32 G729 G729V G729A or G729AV The types N have one end at a MC3810 and connections refer to compression algorithms all G types are 8 kbps the other at a CDP CVM or UVM card at an IPX or IGX switch BC Back Card field For the MC3810 end of the connection enter the back card of the FTC FTM card that links the hub IPX IGX switch to the MC3810 For each feeder back card entry the NMT establishes a dedicated virtual T1 El V or X DOSE circuit that connects one voice port on Fdr BC Feeder Back Card field For each end of the connection having a a MC3810 to one voice port on MC3810 enter V for analog voice or T1 or E1 for digital voice another MC3810 or on an IPX IGX switch H Cisco WAN Modeling Tools Guide 0L 10426 01 Rev A0 Chapter 4 Configuration Tables and Fields Table 4 21 MC3810 Configuration continued Obsolete Products Topic Required Settings Comments Adding MC3810 Bursty Traffic table A MC3810 data connection can have bursty data Type field Enter FR one end at a MC3810 and the other at connections an IPX IGX FRP FRM card BC Back Card field On
102. he feeders explicit Implicit MGX 8820 feeders are generated when a BPX is used as a hub node and the Bursty Traffic table contains connections designated for MGX 8220 Refer to Table 4 19 for information on modeling an implicit feeder tiered network with the NMT Table 4 19 Tiered Network Configurations with Implicit Feeders Topic Required Settings Comments IPX IGX Feeders Sites table Only IGX and BPX can be used as hubs An IGX hub will Site field Enter the name of the hub node only generate implicit feeders when the resources required exceed those allowed by an IGX Type field Enter BPX or IGX Tiered feeder flag Enter Y if implicit IPX should be a tiered feeder IGX field Enter N for IPX and Y for IGX BC field Enter T3 or E3 Specify type of feeder for BPX IGX type of site in the Sites table specify the type of the link between hub and feeder FC field Enter AIT RLC field Enter Y for trunk card redundancy i The redundancy of feeder links is determined by the RLC field in the Sites table Voice Data or Bursty Traffic tables Voice and data connections on IPX or IGX tiered network Site fel s Enter the name ofthe hub node feeders may only terminate on another IPX or IGX feeder Type field Enter any valid IGX or IPX Voice Data or Frame Relay connection type that is not supported on Hub IDs and feeder IDs are not defined for implicit IPX IGX BPX feeders To specify the physical location of feeder trunks and BC
103. he following features e It expands the port capacity of the BPX IGX switch e Ithasno routing capabilities so it is not counted against the maximum number of switches allowed in the network Use a feeder node under the following circumstances e when a BPX switch does not support a required line interface such as TI E1 V35 X21 when a BPX switch does not provide required network services such as Frame Relay or circuit emulation In a tiered network each feeder has only one link to the hub node In the NMT tiered network generation is driven by the type and the line interface of the connection for creating IPX IGX feeders and MGX 8220 MGX 8850 edge concentrators Figure 4 2 shows an example of a tiered network Figure 4 2 Example of a Tiered Network MGX Pari 8220 aris IPX London IPX MGX 8220 Belgium Shelf 6042 If an IPX IGX MGX8220 feeder is not in the Sites table but is generated by NMT it is called an implicit feeder When the node is in the Sites table it is called an explicit feeder The requirements for modeling implicit and explicit feeders differ Cisco WAN Modeling Tools Guide CHAPTER NMT Execute Commands This chapter provides instructions for using the NMT modeling commands found in the Execute menu Using the Route Command AutoRoute N Selecting Route from the Execute menu finds routes by using the same Automatic Routing Management and PNNI Private Network to Network Interface
104. he icon on the left Click the Cisco WAN Modeling Tool icon to start NMT Alternatively you can start NMT by running c nmt nmt exe I OL 10426 01 Rev AO Cisco WAN Modeling Tools Guide B Chapter2 Installing the Cisco WAN Modeling Tools BE Upgradingthe NMT Software Upgrading the NMT Software Step 1 Step 2 Step 3 Step 4 NMT feature releases have unique sub directory names The installation of a new feature release requires the creation or alteration of the working directories Maintenance releases however use the same software directory you created in the previous section The working directories automatically use the upgrade through UNIX links to the software Use the following procedure to perform a maintenance upgrade of NMT software on a UNIX system Enter the cd directory command to log onto the same account that was used to initially install the software as shown in the following example cd usr users NMT Copy the compressed tar file 151 0 tar Z to the same directory in which the release was initially installed Enter the uncompress filename command to uncompress the file as shown in the following example uncompress 151 0 tar Enter the tar xf filename UNIX command to untar the file as shown in the following example tar xf 151 0 tar Starting the NMT S Use the following steps to run the NMT and any NMT UNIX commands Note Step 1 Step 2 Always enter the comman
105. he software Creating a Working Directory Use the following procedure to link the NMT software to working or project directories N Note You need to perform this procedure only once Once you have created a working directory you can launch the NMT from the working directory Step 1 Log into the account that will own the working NMT directory Note The account that owns the working directory can be the same account that owns the software directory or it can be a different account Step2 Create the working directory name mkdir project_name Step3 Move to the subdirectory you just created cd project name Step4 Make sure you are running in c shell If you are not enter the following command csh Stepb Link the project directory to the NMT release a Set the environment variable NMTHOME to the path of the software directory and release For example setenv NMTHOME usr users NMT 151 b Execute the following command NMTHOME nmtlink Cisco WAN Modeling Tools Guide I 0L 10426 01 Rev AO EN Chapter2 Installing the Cisco WAN Modeling Tools BE Installing the NMT The NMT files are linked or copied to the project name directory This links NMT and all the plug ins including TPI SSI and CET To link in NMT without the plug ins enter the following command NMTHOME nmtlink nmt S Note Cisco recommends that you do not link NMT without the plug ins N Note NMT creates a dir
106. heet and vice versa e SSIDOSKT TAR Archive file of SSI DOS utilities tar exe DOS version of UNIX tar command These optional utilities support the transferring and uncompacting of data Note Use binary mode when transferring SSI and SSIDOSKT TAR to your PC Step2 Copy the file SSI to the XL Start subdirectory of your Excel 5 0 or higher installation It can be installed in any Windows environment S Note In most PC Environments Excel will be in the directory c program files Microsoft Office Office XLstart Step3 Copy the file to the xlstart subdirectory of the Excel product This Macro gives you the NMT_Load NMT_Unload and NMT_PrettySheet commands Note You do not need to do Step 4 and Step 5 if you are not going to use the tar file for your NMT data Cisco WAN Modeling Tools Guide Chapter2 Installing the Cisco WAN Modeling Tools Removing Sub applications Step4 If you are going to use the tar file for your NMT data copy tar exe and SSIDOSKT TAR to a DOS working directory Stepb Enter the command tar xvf SSIDOSKT TAR to un archive the data Removing Sub applications This section provides instructions for removing the following sub applications on a UNIX platform the Configuration Extraction Tool CET the Third Party Interface TPI the SpreadSheet Interface SSI Remove individual applications by running the following commands e cetrel removes CET from your ID e tpirel removes
107. hich it can be recalled by using the Undelete command F8 Insert line Inserts a table entry below cursor F9 Undelete line Inserts the last deleted line above the current line If the command is repeated the last deleted line that has not been undeleted if any will be inserted above the current line A maximum of 50 lines can be undeleted F10 Cancel Abort Table Exits a table without checking data If the Exit command has been previously issued the command will delete all lines in the table that contain illegal data Up Arrow Previous line Down Arrow Next line Add row Inserts default field values for new rows Left Arrow Previous Field Right Arrow Next Field Page Up Previous Page Page Down Next Page Home First Page first row End Last page last line Help F12 Choices Lists choices for the selected field Lists of choices are available for most fields that accept three or more non numeric values In the site field you choose a site by pressing Help or F12 and then using the up or down arrows to scroll through the site names press enter to select a site Esc Exit Exits a table or menu and in some cases checks the data in the table Ctrl f Find Site Prompts you for site name and then finds the next table entry using that site name B Cisco WAN Modeling Tools Guide 0L 10426 01 Rev A0 Chapter3 Using the NMT Help Keys Modeling Processes W Table 3 1 Sun Key Assignments
108. icating whether the node is capable of PNNI routing or not PNNI H Cisco WAN Modeling Tools Guide 0L 10426 01 Rev A0 Chapter 4 Configuration Tables and Fields Sites Table Hl Table 4 1 Site Table continued Field Defaults Notes Description and Comments DBF CET TPI PNNI PG IN 0 name of the PNNI group as PNNI PG defined in the PNNI Domains table If the name in this table is not in the PNNI Domain table then it is just represents a logical grouping that the user can define any way they wish PGL PR 0 0 The Peer Group Leader Election PGL PRI Priority is a numeric value determining which site will be the peer group leader The highest value in the peer group will be the leader Xrstr N 0 Y N flag for transit restriction If XR Y the PNNI node cannot be used for transit calls via connections MAPV Map vertical coordinate Can be VER a o apd TOA AS fron the Only available if If no NMT MAp process CWM orSV map longitude latitude has been fields use this to configured create latitude in table muxloc Also written to graphcoord file MAPH Map horizontal coordinate Can HOR m i Spn and unloaded from the Only available if If no NMT EDDIE GRE CWM orSV map longitude latitude has been fields use this to configured create longitude in table muxloc Also written to graphcoord file CT Blank 0 Country code A two digit CT country code carried but not used b
109. ing feature introduces the concept of defining multiple trunks within a single trunk port interface It was developed to provide connectivity for a hybrid network consisting of Cisco ATM switches through a public ATM cloud NMT models virtual trunks on BNI BXM BTM and AIT ports Refer to Table 4 5 for information on virtual trunk configurations Table 4 5 Virtual Trunk Configuration Topic Required Settings Comments Specifying a Virtual Trunk Links Table M Media field Enter VT Trnk_Cd field Both ends must be specified The ends can be different VTRate field Specify the VT rate in cells per second amp Type field Define the ATM type of link ABR CBR UBR VBR or If the back cards are different the maximum size of VT is the minimum of the two protocols leave blank if the links support all types of traffic Voice Table The Voice Table contains topological information about IGX voice connections in the network The important fields in the voice table are the site ends the type and the BackCard field The type defines the voice compression protocol and the backcard defines the connection type at the customer s premise The primary CWM source of the voice table is the USER CONN table The WANDL file for translation is the demand file The Voice Table fields are described in Table 4 6 Field Defaults Table 4 6 Voice Table Notes Description and Comments DBF CET TPI
110. ion an SRM 3T3 service redundant module on all MGX 8220 shelves If no NMT will provision an SRM 3T3 service redundant module only if the case connection interface requires it Bundle Voice with CCS Y NMT will bundle voice connections with CCS signalling and create a transparent connection type T to carry line signalling If No NMT will not bundle voice connections it is your responsibility to specify the channel for CCS signalling Use Preferred Route Y route the connection with the preferred route if one exists If no use the current route N Note This does not apply to failure analysis N Note CET Extractions will set this field to N Use Port ID Y NMT assigns slots and ports based on hub and feeder IDs If no NMT treats all ID fields as though they were zero filled and provisions links and connections using its own algorithms Port ID Over Redundancy Y the system eliminates the redundant card if another card has requested the hub ID of the backup card If no the system gives backup cards precedence over another card that was assigned the same port In this case NMT overrides the hub ID and moves one of the connections to a different location New Share with Port ID Y NMT allows connections IDs of zero to share ports with connections having IDs other than zero If no NMT does not allow this 0L 10426 01 Rev A0 Cisco WAN Modeling
111. ion plan name infile is the name of any cnf file in the current directory This name is used as the name of the destination directory for the files extracted from the cnf file These files are readable by the WANDL bbdsgn program NT The program should not preserve the NMT parameters NIM The program should not display informational messages only warnings error and those messages that may require user action D Display steps and debugging information over Overwrites existing output distd Use the link distance as the WANDL Distance default in cost distm Use the link distance as the WANDL Distance default in monthly cost disti Use the link distance as the WANDL Distance default in install cost H Display help Step3 You can start the WANDL design session with the nmt2tpi output files by using the following commands cd dir name bbdsgn spec extension dir name is the name of the cnf file specified in the previous step spec extensionis the WANDL specification file specifying a set of files to be run together 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide H Chapter 10 WANDL Third Party Interface E Translating Between NMT and WANDL Formats Converting WANDL Files into NMT cnf Files Step 1 Step 2 This procedure is for the conversion of WANDL files into files that can be read by the NMT This procedure processes files specified in the WANDL specification file
112. ircuit Emulation Connection Configuration Topic Required Settings Comments Modeling Bursty Traffic table Use ATM CE when the ATM interface at Sitel interworks to a ATM to CE Circuit Emulation interface at Site2 Use CE ATM when the ATM Type field Enter ATM CE or CE ATM end is at Site 2 and CE is at Site 1 AII values MIR PIR are in Kbps and the circuit should be configured as a CBR where MIR equals PIR Interface Table The Interface Table contains topological and partition information about ports in the network The primary CWM source for the interface table is the PORT table For the WANDL translation the Interface table is translated into optional parameters in either the BBLINK file or the DEMAND file which cross reference the NMT link or connection record based on the slot port string Note The Interface table is called the Port table in the MS Excel and DBF interface The Interface Table fields are described in Table 4 12 Table 4 12 Interface Table Port Specific Parameters Field Defaults Notes Description and Comments DBF CET TPI Site M H Site name SITE PortID 0 O Slot port address used for linking HUBID the NMTs Bursty traffic table to the port table Also used for bundling FeederPort 0 E Slot port address cross reference FDR ID _ID in the port table Also used for bundling H Cisco WAN Modeling Tools Guide OL 10426 01 Rev A0 Ch
113. ity To ensure that all service requests are reported in a standard format Cisco has established severity definitions Severity 1 S1 Your network is down or there is a critical impact to your business operations You and Cisco will commit all necessary resources around the clock to resolve the situation Severity 2 S2 Operation of an existing network is severely degraded or significant aspects of your business operation are negatively affected by inadequate performance of Cisco products You and Cisco will commit full time resources during normal business hours to resolve the situation Severity 3 S3 Operational performance of your network is impaired but most business operations remain functional You and Cisco will commit resources during normal business hours to restore service to satisfactory levels Severity 4 S4 You require information or assistance with Cisco product capabilities installation or configuration There is little or no effect on your business operations Obtaining Additional Publications and Information Information about Cisco products technologies and network solutions is available from various online and printed sources e Cisco Marketplace provides a variety of Cisco books reference guides and logo merchandise Visit Cisco Marketplace the company store at this URL http www cisco com go marketplace e Cisco Press publishes a wide range of general networking training and certifica
114. k In the UNIX environment do the following run the command nmt2tar This creates both the DBF files and a tar file containing them Transfer the output tar file to you PC environment Make sure you use binary mode Untar the file using the DOS command tar2dir Start EXCEL and select file lmacroNMT Load and click run When prompted for an input file select any of the DBF files for your run NMT Load convert NMT table files in DBF format to Excel spreadsheets where each sheet is a table and each column is a file When completed select tools macro gt t NMT Unload and click run Write in same directory or another sub directory in your PC environment NMT Unload converts an excel spreadsheet to NMT DBF files The sheets that are NMT table names will be written In DOS a Dos environment do the following run dir2tar to create tar file of modified outputs Transfer the tar file back to UNIX environment Make sure you use binary mode Run tar2nmt to create the CNF file Note You may create a CNF file starting in EXCEL provided you use the same sheet names and field names that NMT expects Only site table and site fields are required other fields will be set to default values by SSI and NMT Additional sheets and tables will be ignored The tar2nmt command will convert a tar version of these files to a NMT cnf file The DBF columns that match NMT fields will be used AII fields not provided will be set to the NMT defa
115. le 3 Paris Boston Invalid capacity 24 changed to default value 16 W Voice Conn line 3 CELP protocol not supported this release Resetting to A16 SuSu Release 841 NHT204 8 4 0 gt tmp NMT tutorial model lt PaUp gt PaIn Home gt lt End gt lt F2 gt window help lt Esc gt exit window NM669 Error Checking The NMT does automatic error checking in the following circumstances e When you exit a data entry screen the NMT automatically performs a line by line check of the data in your table When you exit the Configure menu the NMT checks your data again and in many cases makes corrections If the NMT makes any changes or finds any errors it generates information warning or error messages as needed When this happens you are instructed to select Warnings amp Errors from the Display menu N Note If you are working with a large configuration you may want to exit the data entry screen without having the NMT perform a line by line check To do this press the F10 key instead of Escape key e When you select Route Optimize or Build Sites from the Execute menu the NMT checks your data and may make corrections If the NMT makes any changes or finds any errors it generates information warning or error messages as needed When this happens you are instructed to select Warnings amp Errors from the Display menu To thoroughly check and correct all configuration tables in VI mode select
116. lf e g 8 1 8 1 This connection is intrasite intracard and intraport Quantity field The number of dummy connections should equal one half the peak number of simultaneous calls expected between the MC3810 and all other switched voice destinations Type field Enter the voice traffic speed type Fdr BC Feeder Back Card field Enter V for the voice connections i e voice connections between at least one voice port on a MC3810 connected to at least one voice port on many MC3810s you must perform a two step process connect the MC3810s and add dummy MC3810 connections I 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide H Chapter4 Configuration Tables and Fields MH FastPAp Table 4 21 MC3810 Configuration continued Topic Required Settings Comments Setting up multiple Data Traffic table Voice Traffic table Bursty Traffic table For connections between multiple MC3810s atthesame Hub ID field The ID is given to the port of the FTC FTM card on the MS ate E id le associate site IPX IGX that connects to the specific MC3810 ID values can be specific connections with specific GM MC3810s use the Hub ID field for all 0 indicating no unique port constraint MC3810 connections that originate or Slot and port mm nn terminate at that site where mm 1 to 32 and nn 1 to 31 All connections associated with one specific MC3810 should have the same Hub ID throughout the three traffic table
117. lick on the second level node exposes the third level nodes associated with that node and so on Figure 8 5 Figure 8 5 Three Level Hierarchy Third Level Network Design Topology NMT13473 File Access Groups Background Topology Options Help 49160 N Note To see the entire network click on all the logical node icons Cisco WAN Modeling Tools Guide EIN OL 10426 01 Rev AO Chapter8 NMT Map Obtaining Link Information Physical Links Ti There are two shortcuts to transform Figure 8 1 to Figure 8 2 or vice versa Select Explode from the Groups menu to view the physical network of Figure 8 2 or select Collapse from the Groups menu to view the logical network Figure 8 1 Obtaining Link Information Physical Links Click the link between two physical nodes to display all of the links between them Figure 8 6 Figure 8 6 Link Display for Physical Links a Nate Nacian Tonolaau MMIT1EG 74 La SNRATI CO AZ E dr From ipx7 to ipx4 i Me Endi End2 Type Media Capacity PVCs Used ipx 3 1 ipx4 3 1 Ti Z 8000 8000 213 192 full ipx 7 1 ipx4 11 1 El Z 10666 10666 213 52 full 49161 Obtaining Link Information Logical Links Click the logical link between two logical nodes to display all of the physical links between them All the links are displayed regardless of how many different node pairs are involved Figure 8 7 Cisco WAN Modeling Tools Guide I 0L 1042
118. line not field name line with this potential corruption data conn type all hub IDS and Feeder IDs have a single quote prepended to them For example 19 2 ew STIA This forces the DBF translation to treat these columns as strings so truncation is avoided This is only necessary in the first data line H Cisco WAN Modeling Tools Guide 0L 10426 01 Rev A0 CHAPTER 1 Cisco Network Designer Importer The Cisco Network Designer CND is a PC configuration system for pre sales CND PC Import Utilities The NMT provides two PC Utilities for loading the CNF into the Cisco Network Designer where the data is stored as a project Table 12 1describes these utilities Table 12 1 PC Utilities for the CND Utility Description NMT2CND Proprietary CNF file used by NMT to provision a network considering QoS minimizing costs and failure recovery This file describes WAN topologies using the BPX MGX and IGX switch product line These configurations can be loaded directly into CND for graphic display BOMs and further reports configuration checking and LAN and other network additions DBF2CND Uses the NMT SpreadSheet Interface SSI to load data from MS Excel workbooks into Cisco Network Designer This data can be any Cisco products that CND supports Data must still be verified within CND to confirm the validity of the design Installing the NMT2CND file Once the NMT PC version is installed the NMT2Cnd and DBF2CN
119. llation directory on a Windows 2000 system follow these steps a Enter the cd command to get to the Advanced directory as shown in the following example My Computers Control Panel System Advanced b Click Environment Variables c Click New and add the environment variable with the name NMTHOME and set the value to the directory you specified when installing the compressed file To change the installation directory on earlier windows systems a Add the lines in the file autoexec add to the end of your autoexec bat file The autoexec add file is in the c nmt default directory and the autoexec bat is found in the c main directory b Change the drive and directory of NMTHOME to the path you entered for the unzip command c Reboot your machine before running NMT Install the shortcut a Open Explorer go to nmt install and then to the sub directory of the operating system on your PC b Drag and drop the Cisco WAN Modeling Tool shortcut to the background windows screen To create a short cut from scratch follow these steps a Use Explorer to drag and drop the file c nmt install nmt exe to the background b Right mouse click on the icon for properties c Set start in to the recommended C nmtfata which will be the default directory for storying your NMT files If you want to store your NMT data elsewhere you can reset this Select change icon and then browse Select the file c nmtein nmt_icon exe and pick t
120. lowing sections e Translating Between NMT and WANDL Formats Converting NMT Configuration Files into WANDL Files Converting WANDL Files into NMT cnf Files TPI translates NMT cnf files to and from WANDL files Figure 10 1 Figure 10 1 provides a high level illustration of this process If the design begins in NMT all parameter values are preserved during the return from the WANDL design If the design begins in WANDL the tpiZnmt command assumes defaults and NMT catches unsupported settings The WANDL design tool bbdsgn can further optimize the network transmission requirements and costs For more information on WANDL design tools contact customer service or visit the WANDL website at the following URL http www wandl com html index cfm Translating Between NMT and WANDL Formats This section describes how to translate between NMT and WANDL network design formats on your Sun workstation The NMT WANDL file translation can be done in NMT or from the UNIX Command Line Interface CLI Cisco WAN Modeling Tools Guide 0L 10426 01 Rev AQ EIN Chapter 10 WANDL Third Party Interface E Translating Between NMT and WANDL Formats Figure 10 1 TPI Schematic Overview nmt Write mynet Working directory nmt2tpi mynet WANDL file set in Directory mynet gt 35 bblink mynet tpi2nmt
121. m dc muscle xem TAR2NMT Unix i NMT l DBF reports NMT2TAR EA cu TAR of DBF EEE de icon Sa LI NMT tables PC TAR PC file set Excel PC version Y 1 NMT unload Y NMT load Excel spreadsheet Step3 Unarchive the file at the PC using a program like tar exe for PCs and StuffIt Deluxe for Macintoshes NMT to Microsoft Excel The unarchived file consists of several files one file for each NMT configuration table Each file has a dbf extension and can be opened and edited in Microsoft Excel Step4 Start Microsoft Excel and edit the data You can read and write a multi spreadsheet workbook by using the SSILoad and SSIUnload macros Alternatively you can treat each file individually 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide B Chapter 11 SpreadSheet Interface Hs Microsoft Excel to NMT Microsoft Excel to NMT Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 The following procedure is for the archiving of Microsoft Excel files so they can be easily moved from a PC to a UNIX workstation and for converting the Microsoft Excel files into NMT cnf file format To archive an Microsoft Excel file use a program like tar exe for PCs or StuffIt Deluxe for Macintoshes S Note If the destination PC has not been used for reading archived cnf files you should copy the following
122. mporter B CND PC Import Utilities Step 10 Select Load Import into CND The CND launches and loads the project N Note Be sure your project name is unique If another project exists under the same name an error message will appear and your project will be renamed to Project lt n gt Step 11 Bring the dbf2cnd window to the foreground while the project is loading A message box displays the status of the load and how many parts were accepted and rejected from the load Click OK N Note This step could take 5 minutes or more for large networks CND PC Utilities You can now use CND to explore your loaded project When you are finished close dbf2cnd before you close CND You will have to reopen CND to work normally otherwise it may hang up H Cisco WAN Modeling Tools Guide 0L 10426 01 Rev A0 A access feeders 4 36 Ad field 4 12 4 15 4 20 Alternative Route command 5 4 AutoRoute 5 1 Back card field 4 4 4 19 Back card type field 4 13 4 16 bbdsgn 10 1 BPX description of 1 3 Building Sites message box 5 5 Bundle field 4 3 Cc Cabinet field 4 3 Cd field 4 15 CET 9 1 commands 9 4 9 5 fields revised by 9 1 how to use 9 2 troubleshooting 9 4 using 9 2 warning messages 9 2 Cisco 3800 4 36 adding connections 4 36 changing defaults 4 38 description of 1 3 multiple ones at a site 4 38 setting software release 4 36 Cisco Network Designer Importer CND 1
123. mt command The command only updates fields that are missing from CWM or are not that reliable The site names and slot port information is used to match links and connections Messages are generated for every change adj2nmt lt in file gt lt reference file gt lt out file gt options in file is the most recent extraction file reference file is the extraction with the manual changes applied out file in the input file with the same parameters changed on the output file Options e add Add links and connections that are in the reference file but missing from the input file e diffrep Write no output file but generate a report about the differences of the two files N Note The field update functionality and the topology compare functionality can now be called directly from the NMT menu under FILES READ 2ND CNF This process is illustrated in Figure 9 1 I 0L 10426 01 Rev A0 Cisco WAN Modeling Tools Guide H Chapter9 Configuration Extraction Tool B Other CET Commands Figure 9 1 CET Schematic Overview Cisco Network pe Cisco E svp2cet Informix livenet database Directory livenet gt svp2cet nia N a domains Svp nodes oo ports cet2nmt livenet S6043 Working directory Y nmt Read livenet Other CET Commands There are seve
124. n load assumes either one or two packets based on the combine time out value for the particular type of connection Solution Combine time outs are network global parameters that can be configured under Configure Model Settings menu The parameters are specified in the units of 0 125 usec Set the combine time outs to the largest value possible to optimize bandwidth usage in the model Symptom Changing the Least Cost Weights does not effect the routes of the connections Probable CNF file may have preferred routes or if it was a CET extraction it may Causes have actual routes These route fields are checked first If there is a route in that field the model will use it before running AutoRoute Solution Remove the actual route or the preferred route This can be done using F6 in that field for each connection Or you can remove all routes in the CONFIG UTILITIES CLEAR DATA menu Also check the setting of Use Preferred Routes in the EXECUTE SET menu If this flag is Y preferred routes will try to be used first If itis set to N then actual routes will be used first Symptom Links have an unbalanced load when routed with AutoRoute Probable The site table has a bundle field that routes a specified number of Causes connections at the same time in a bundle the default number of connections per bundle is 24 Solution Set the bundle field in the site table to 1 Cisco WAN Modeling Tools Guide
125. nd IPX products explicitly in the Sites table You can also use the NMT to provision feeders as required by the connection demand You can even provision additional routing IGXs Implicit and explicit feeder generation is discussed in the following sections Modeling Implicit Feeders e Modeling Explicit Feeders Modeling Implicit Feeders To allow NMT to generate implicit feeders enter the following information into the Site Table hub site link connecting the hub to the feeder Enter information about both the hub and feeder interfaces in the Traffic tables For implicit feeders connection endpoints are the hub nodes The actual feeder ends cannot be referenced directly IGX IPX and MGX8820 feeder nodes can be implicitly generated by NMT The MGX 8850 if used as a feeder must be an explicit feeder It can not be an implicit feeder Implicit IGX and IPX feeders are generated when a BPX is used as the hub node for Voice or Data Traffic They are also generated when a BPX is used as the hub node for Frame Relay Traffic not designated for an MGX 8220 H Cisco WAN Modeling Tools Guide 0L 10426 01 Rev AO Chapter 4 Configuration Tables and Fields Feeders W Implicit IGX and IPX feeders can be generated when an IGX is used as the hub but only when the traffic demands on the IGX exceed the resources of one node Therefore if the hub is an IGX and you want to design IGX or IPX feeders it is better to make t
126. nd how to use it Cisco WAN Modeling Tools Guide 0L 10426 01 Rev AO Chapter8 NMT Map NMT Map Main Menu W Each pull down menu contains one to six submenus The purpose of each submenu is described in Table 8 2 Table 8 2 Map Tool Menus Menu Bar Selection Description File Save Save locations of nodes and groups and the assignment of nodes to groups Quit Exit the map tool optionally saving or ignoring new information in the display Access Add Add an access feeder to the node Delete Delete an access feeder Groups Explode Open all groups displaying individual physical nodes and links Collapse Aggregate all nodes into their assigned groups and all groups to their root groups Add new Add a new group Add to Add a node or group to a group Delete Delete a group Delete from Delete a node or group from a group Background Display Show or hide a background map Select Select the map to display in the background Topology Update Map Import the latest NMT configuration Clear Map Clear the map screen Options Thresholds Sets the color of the links based on their bandwidth percentage utilization Black and White Shows node names and background map in black on a white background Messages Browse Messages View any error or status messages Note This menu item appears only when there are error or status message Help User Guide Provides information about using
127. nodes will also be shown Nodes that have no map coordinates will show up in the upper left corner You must drag them to their proper place on the map Note Most networks that have been obtained using the Configuration Extraction Tool whether or not they are on PNNI networks will be part of one logical group consisting of the entire network When the map is invoked on such a network it will usually display a single isolated group 0L 10426 01 Rev A0 Cisco WAN Modeling Tools Guide Bg Chapter8 NMTMap E NMT Map Startup Figure 8 1 Network View Showing Logical Nodes Network Design Topology NMT13473 File Access Groups Background Topology Options Help 49156 Figure10 2 shows an example of the physical network corresponding to Figure 10 1 The physical nodes are shown as squares and the links between them as lines If multiple groups are defined and a link has ends in two different groups the nodes at each end are called border nodes The NMT Map highlights border nodes by displaying them as striped squares The NMT Map also displays links in two line thickness A thin line indicates that there is only one trunk between the end points a thick line indicates multiple trunks Figure 11 2 shows an example of all these display features Figure 8 2 Network View Showing Physical Nodes Network Design Topology NMT13473 File Access Groups Background Topology Options Cisco WAN Modeling Tool
128. ntation algorithm Enter N for simple node representation PGL_PR N O The Peer Group Leader Election Priority is a PGL PRI numeric value determining which site will be the B peer group leader The highest value in the peer group will be the leader Xrstr N O Enter Y if the peer group cannot be used for transit RSTR via calls mapX 0 O Horizontal coordinate on the NMT map for this Peer HOR group location mapY 0 O Vertical coordinate on the NMT map for this Peer VER group location Cisco WAN Modeling Tools Guide Chapter 4 Configuration Tables and Fields Nodes Table S Nodes Table W The Nodes Table defines node types the NMT does not support Future switches other Cisco WAN or feeder platforms or other vendor switches can be defined in this table Note The Nodes table is not translated from CWM or to WANDL Table 4 16 Nodes Table Field Defaults Notes Description and Comments DBF CET NodeType Blank M Name of the node type NAME BaseType GENERI M If the NodeType is closely based on an existing type TYPE C supported by NMT enter that type here Otherwise enter GENERIC Size 32 M Number of slots in this type of node SIZE CTL 64 M Number of circuit lines allowed on the node CTLS PTL 30 M Number of packet lines trunks allowed on the node PTLS PTLConns 4000 M Number of connections allows in each PTL connected PTI CONNS to thi
129. nued Description and Comments DBF CET TPI IGX Y E Type of feeder node Y feeder nodes should be IGX N feeder nodes should be IPX This field applies only if NMT needs to add a feeder node IGX TF Tiered Feeder Flag Y for feeder N for router This field applies only to added feeder nodes TF BC TI E H Back card Feeder link back card This field applies only to added feeder nodes BC FC NTM E H Front card Feeder link front card This field applies only to added feeder nodes FC RLC Redundant link card Specifies whether link is redundant This field applies only to added feeder nodes RDL NPA NPA of the site location Not used in NMT but carried for reference and used in WANDL NPA NXX NXX of the site location Not used in NMT but carried for reference and used in WANDL NXX LON Longitude of site location Not used in NMT but carried for reference and used in WANDL Several different formats are available in the string field LON F muxloc LAT Latitude of site location Not used in NMT but carried for reference and used in WANDL Several different formats are available in the string field LAT F muxloc RA Routing algorithm version of Autoroute Use H for minimum hops C for Least Cost and CD for least cost with delays RM PNNI Blank Y N flag ind
130. o N default value the UI will skip route checking so it will be checked during Execute operation If set to Y the user will be able to check routes in the UI and correct them if necessary Cisco WAN Modeling Tools Guide Chapter3 Using the NMT Defaults Display Menu W To create your own defaults for any or all tables create a CNF file and call it DEFAULTS Save it to your working directory Any new records you create for a field in any table will have the values of the first entry in that table To use an existing file for your defaults select it in the edit options window S Note This option does not apply to the site names field in any table Execute Menu You can access the following commands from the File menu in the Network Design Tools window e Route Routes traffic over specified links Fail Analysis Performs failure analysis on the lines and forces NMT to create alternate routes Build Sites Provisions the nodes without routing e Optimize Uses selected links to create a least cost topology Display Menu You can access the following commands from the File menu in the Network Design Tools window Sites Links Network Summary Total Links Load ATM amp Fr Ports Data amp Voice Ports Connection Routes Failed Connections Parts List Resources PNNI Topology User Message Map Displays customer site information Displays a list of links in the current network
131. o 10 characters Type Chassis Part type up to 19 characters The Hor and Ver columns are optional Use them to position sites on the CND drawing 0 0 is the upper left coordinate The positions will be stretched to scale All sites but one must have at least one non zero coordinate for the coordinates to be used Otherwise an auto position algorithm is used 2 an options links sheet The Link sheet must have two columns Sitel Site name for end one of the link Site2 Site name for end two of the link 3 a Parts List sheet The Parts List sheet must have two columns Site Site name for the part Model No The part to add QTY is an optional column Use this if you want to enter more than one part per line N Note There is a template example of these files in c nmt data excel In the Tools menu go to macro lt macros lt SSI NMT_Unload and click run Navigate to the directory where you wish to store the DBF files and click save N Note Ignore the message about other missing NMT files Shut down CND if it is running Click the dbf2cnd icon to launch the dbf2cnd utility An MFC menu appears In the MFC menu select File lt open and navigate to the directory containing your DBF Open any file in the DBF directory A pop up window displays sites links and part candidate counts Click OK I 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide B Chapter 12 Cisco Network Designer I
132. o the WANDL link label field if field is used as the link label in the bblink file If this field is blank a link label will be generated only if it is required to uniquely determine the link in WANDL until sv Release 9 0 Link Special Cases This section describes link table configuration for the following special cases e ATM Trunks e Virtual Trunks IMATM Trunks An IMATM trunk is an ATM link of one to eight DS1 lines Each IMATM trunk card uses a slot of an AXIS shelf and is connected to the BPX switch by means of a T3 E3 port on a BNI card The trunk can be configured so it fails only if more than n DSI lines fail The NMT does not model IMATM trunk resiliency during failure analysis Table 4 4 IMATM Trunk Configuration Topic Required Settings Comments Specifying an IMATM Trunk Links table Both sites must be BPX Trunk type field Specify a trunk of T1 or El Prepend the number of DS1s for the trunk for example 5 T1 or 8 El Trunk capacity field For E1 links specify number of DSO in the line 30 for CCS signalling or 32 for Clear Channel signalling Trunk card field Specify IMA for both trunk front cards IMA RD field enter the resiliency degree The IMA RD field is on the second screen of the Links table H Cisco WAN Modeling Tools Guide 0L 10426 01 Rev AO Chapter4 Configuration Tables and Fields Virtual Trunks Voice Table Mi The virtual trunk
133. onal 19 fields and all feeder sites are optional An equal sign separates the site names Specific links are specified by the slot port for the incoming and or outgoing port PR_SITE2 PR_SITE3 PR SITEA PR SITE20 Available starting with Release 7 2 Specific Trunk not available until Release 8 4 Routes are not available on PNNI networks H Cisco WAN Modeling Tools Guide 0L 10426 01 Rev A0 Chapter4 Configuration Tables and Fields Bursty Table W Table 4 7 Data Table continued Defaul Note Field ts s Description and Comments DBF CET TPI Current_ O The current route from CET extractions Route is storedin sie 19 fields Available starting with CR_SITE2 Release 7 2 Specific CR_SITE3 Trunk not available until Release 8 4 Routes are CR_SITE4 not available on PNNI a networks CR_SITE20 Comme O Comment field maximum of 20 CIRCUIT_ID Not available prior to Comment nts characters Release 7 2 nor for SV field used release 8 4 as the connection label If no comment field a connection label is generated for WANDL demand file Bursty Table The Bursty Table contains topological information about Frame Relay ATM and circuit emulation connections in the network The important fields in the bursty table are the site ends the type and the BackCard field The type defines the type of connection Frame Relay ATM Circuit Emulation or m
134. or retrieving existing topologies from the Cisco Wan Manager CWM database Conversion Plug ins the Third Party Interface TPI for sharing NMT information with WANDL and the SpreadSheet Interface SSI for exchanging NMT configurations with Microsoft Excel These tools are integrated into NMT but are also available as UNIX stand alone commands Cisco Network Designer CND importing tool for importing and storing topologies in a project format The guide is written for anyone who operates or manages a WAN and has a general understanding of data communications concepts some knowledge of UNIX and or PC desktop and knowledge of the interfaces used by devices connected to their WAN Related CWM and Switch Documentation A Guide to Cisco Multiservice Switch Documentation ships with your product This guide contains general information about how to locate Cisco MGX BPX SES and CWM documentation online These documents comprise the CWM documentation set The first five documents are on the CWM Documentation CD and on Cisco com Cisco WAN Manager Installation Guide Release 15 3 00 Cisco WAN Manager User s Guide Release 15 3 00 Cisco WAN Manager SNMP Service Agent Guide 15 3 00 Cisco WAN Manager Database Interface Guide Release 15 3 00 Cisco WANDEST Installation and Reference Release 2 7 These documents are available on Cisco com Release Notes for Cisco WAN Manager Release 15 3 00 Release Notes for the Cisco WAN Modeling Tools
135. ormatory Messages Message Meaning Initial Topology Existing Facilities were sufficient to route all connections No new links were added Connection Based Actual preferred route information was used to obtain starting topology Minimum Span Tree Minimum span tree algorithm was used to generate an initial tree topology Link Based Links were sorted 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide E Chapter5 NMT Execute Commands HM Optimize Command S Note Optimize is not supported for PNNI Networks NMT Command Results Table 5 4 lists the possible reasons connections are not being routed over links with the route command Table 5 4 Possible Causes for Connections not Routed Over Links Cause Solution Link has a zero in the keep field This indicates the link is a candidate for the optimize command to add to the network but it does not exist in the network and will not be considered by the route command Set the keep field to one or higher Link is not enabled for the routing protocol required by the connection in either AutoRoute or PNNI Set the PNNI or AR flag to Y in the link table To check what protocol the connection requires check the RT Metrics field in the connection table For AutoRoute Least Cost Routing or PNNI the Cost field in the Connection table has too low a maximum value for a route to be found with that cost or lower Rai
136. ort The parts list report lists parts required to provision the modeled network The parts included are the chassis front cards back cards and special shelves and units Cables and optional parts are usually not included in the parts list report Bundles are used if applicable N Note The Parts List Report is output in DBF format Resource Report Card Statistics Report The Resource Report Card Statistics Report displays the card cage for each system unit and a brief listing of used and available ports The card statistics report is the second part of the resource report Release 15 of the Cisco WAN Modeling Tools models the UXM card and has a new card statistics report for tracking the UBU usage of this and other cards Below is a card statistics report for a two IGX networks with 295 ATF FR interworking connections between the nodes each MIR 64K PIR 256K imiginigiviginigivigini gie dvigisicisizioizicio Card Statistics Node ATM_Side Type IGX 8 Bus Used 40 UBUs out of 584 Slot Front Back Type PVCs Port UBU PS Card Specific Stat Used Allc Used Max 1 A NPM 2 2 2 2 S NPM 3 A UXM 3T3 Trunk 295 1 25 13 184 FPL 8 GWL 2 4 A UXM AT3 Line 295 1 13 13 184 FPL 8 GWL 2 Legends FPL Fast Packet Load Percent of FP bus load Total bus load GWL Gateway Module Load Percent of FP bus load Max FP bus load Node FR Side Type IGX 8 Bus Used 118 UBUs out of 584 Slot
137. ort ID used for linking the NMT s HUB ID 7 Bursty traffic table to the port table Also used for bundling Name O Feeder name May be left blank NAME MC3810 not supported until Release 9 1 Type O H Choice of 38 1 38 3 38 8 for 3810 1 TYPE MC3810 not 3 or 8 slot chassis respectively FP 4 or supported until FP 8 for FastPAD 4 port or 8 slot units Release 9 1 respectively p11 or p44 for 1 or 4 shelf port concentrators or MGX 8220 for an MGX 8220 edge concentrator Generic choices of 3810 FP and PC are provided When these are chosen NMT will select the least cost unit Speed 64 O H Clock speed of the port to which the SPEED MC3810 not feeder is connected MGX 8220 speeds supported until are fixed based on interface type Speeds Release 9 1 for the other feeders can range from 19 2 to 2048 kbps depending on the feeder and the interface Cisco WAN Modeling Tools Guide Chapter4 Configuration Tables and Fields Card Table Card Table The Card table is an optional table that specifies the cards that populate the chassis Links and connections may use these cards Table 4 14 Card Table Field Defaults Notes Description and Comments DBF CET TPI Node M H Site name of the chassis being specified SITE Slot M H Slot that the remainder of the fields in this table SLOT applies to Status M H
138. ost as user svplus rlogin lt remotehostaddr gt 1 svplus b Edit or create the rhosts file in the svplus home directory c Adda new entry of the following form lt localhostname gt lt yourlocaluserID gt N Note localhostname must be the official name of your host not one of its nicknames If you don t know it execute the command who am i after you have logged on to the remote host Your official host name will appear within parentheses To check whether your setup is correct run the svp rev and swt rev commands If both commands work correctly your setup is correct 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide H Chapter9 Configuration Extraction Tool B Remote CET Extracts Troubleshooting Symptom A command returns Informix error 23101 Unable to load locale categories Probable The INFORMIXDIR environment variable is not set correctly Causes Solution Either issue the command unsetenv INFORMIXDIR or the command setenv INFORMIXDIR usr users informix Symptom A command returns Informix error 930 Cannot connect to database server remotehostname Probable Either Informix is not installed on the remote host or the Causes INFORMIXSERVER environment variable has been set incorrectly Solution If Informix is installed perform Step 1 of the Setup Procedure Symptom A command returns Informix error 25596 The INFORMIXSERVER value i
139. ow and all other traffic in green Cisco WAN Modeling Tools Guide CHAPTER Configuration Extraction Tool This chapter describes how to use the Configuration Extraction Tool CET The CET extracts data from the Informix database used by the Cisco Wan Manager CWM The CET then formats the data into a standard cnf file that can be read by the NMT The CET works with CWM Releases 9 2 through 15 1 50 CET is included in the UNIX installation of NMT For instructions on installing the CET see the chapter Installing WAN Modeling Tools This Chapter contains the following sections e Fields Addressed by CET e Using the CET e Other CET Commands e Troubleshooting CET e Remote CET Extracts Fields Addressed by CET A configuration file generated by the CET consists of data extracted from your network The source is the CWM Informix database Where that data is not available NMT default values are used See Chapter 4 Configuration Tables and Fields for descriptions of the fields that are extracted from the CWM data and their source fields and their limitations CET provides the added functionality of translating all coded value fields in INFORMIX into easy to use strings For some fields CET will check 2nd sources for the data if there are problems with the CWM collection process For older versions of CWM specifically 9 1 or earlier CET will heuristically fill in some fields 0L 10426 01 Rev AO Cisco WAN Modeling
140. pears asking whether you are sure you want to quit NMT Type Y and hit return to quit Type No and hit return to continue working in NMT Keyboard Commands To select a top level menu item in the NMT design window use the left and right arrow keys Press Enter to access a submenu Select submenu entries with the up or down arrow key or by typing the first letter of the submenu entry To exit from a table or menu press Escape Cisco WAN Modeling Tools Guide I 0L 10426 01 Rev AO EN Chapter3 Usingthe NMT Keyboard Commands The NMT has many keyboard commands to help you create and revise configuration tables and reports Table 3 1 lists the Sun workstation key assignments used for editing data in the NMT Table 3 1 Sun Key Assignments Key Function Description F1 Field help Text description of the current field F2 Window help Displays a list of key definitions for data entry and editing F3 Copy line Copies the current line The Repeat Line command then can be used to repeat it one or more times FA Repeat line Inserts a previously copied line below the current line F5 Choice List Displays a list of key definitions for data entry and editing same as F2 Note This command is only available on the PC version of NMT F6 Clear end of field Clears one field in a table F7 Delete line Removes the current line The line deleted will be saved in a buffer from w
141. preadSheet Interface HH NMT to Microsoft Excel The following procedure is for the conversion of an NMT cnf file to dbf a Microsoft Excel compatible format and archiving the dbf output so that it can be moved from a UNIX workstation to a PC This section also explains how to unarchive the file once it is on the PC Step 1 To convert a cnf file to dbf format and archive it as a tar file use the following command nmt2tar cnf name parts file cnf name is the name of any cnf file in the current directory parts file is the name of the file that lists the components You should specify a parts file only if you are using a file other than the default Step2 FTP the cnf name tar file to a computer that has Microsoft Excel installed Alternatively copy the file to a PC or Macintosh compatible diskette by using the mcopy command For example mcopy cnf name a copies the file cnf name to the diskette in the A drive of the UNIX workstation Note If the destination PC has not been used for reading archived cnf files you should copy the following files from the NMT directory to the PC SSIDOSKT TAR containing DOS bat files for tarring and untarring the NMT SSI dbf data files the tar exe program and the Microsoft Excel macro SSI Also you should read the file SSI readme Cisco WAN Modeling Tools Guide Chapter 11 SpreadSheet Interface Figure 11 1 SSI Schematic Overview j tocstsstsscesocitoeldactonta c
142. pt Popeye 2 if you are configuring a Popeye 2 enter PXM45 Link Table Sitel Site2 fields Enter the hub site name and the feeder site name Trunk fields Enter the appropriate T1 E1 T3 E3 OC3 or OC12 interface that connects the hub and feeder nodes Trunk Card fields Enter the front cards at the hub and the feeder nodes for the trunk that connects them You must enter the trunk between the hub and the feeder manually NMT will not automatically generate it Only IGX and BPX nodes may be hubs IGX nodes may have only IGX or IPX feeders BPX nodes can have MGX8220 and MGX8850 feeders as well Voice Data or Bursty Traffic tables Site field Enter the explicit feeder site name Must be a site that has Y in the Fdr field in the Site table Type field any from the list of choices BC Back Card fields Enter the customer interface on the feeder node Only IGX and IPX feeders support Voice and Data Traffic You must enter a feeder site name for NMT to put the connection on the feeder node Even though you are referencing a feeder node use the BC fields and not the FdrBC fields Explicit Feeders Port to Multiport Bursty Traffic table Hub I D fields ID values must be assigned ID values can be Slot Line Port e g 5 2 6 for multi port channelized card e g FRSM UFMC Slot Port e g 5 3 for single port channelized cards e g FRM E1 and for multi port unchannelized card e g
143. qual signs If the Preferred_Route field is left blank or is invalid this field is ignored All site names must be in the Site Table and each consecutive pair of sites must have a trunk in the Link Table The originating and terminating sites are optional The NMT has an Actual Route field with the same format as Preferred Routes CET Extractions fill in the Actual Route which is the tree route of the connection at that time The Used Preferred Routes option in Execute Settings determines which set of routes to use with the route command Preferred routes are always used in failure analysis commands PNNI Routing When modeling a PNNI Network the following must be done in the CNF tables e Enter Y in the PNNI field of the Site Table to enable PNNI at each site N e If the PNNI network is a multi group specify the peer group each site belongs to in the PNNI PG field For multi level peer group networks each peer group must be entered in the PNNI domains table with its level and parent defined e If you want a specific site to be a peer group leader enter Y in the PGL field for that site If none are selected NMT will select a leader for you Enter Y in the PNNI field of the Link Table to enable PNNI on the links e Setthe RT Metrics field in the Bursty Connection table to one of the three types of PNNI routing algorithms The choices are AW for administrative weight CTD for Cell Transfer Delay or CDV for Cell
144. r IGX 8 N Y Y Ti A Y N N N 1 14 32 0 Y N Y T3 Bi N 8 NHT204 8 4 0 gt tmp NMT tutorial NoName SuSw Release 841 lt F1 gt field help lt F2 gt window help lt F8 gt or lt DwnArw gt add line lt Esc gt exit window lt F10 gt abort z You can either input or import a configuration e To input a configuration you enter data into tables accessed from the Configure menu For information about inputting a configuration refer to the section Keyboard Commands earlier in this chapter and see the chapter Modeling Simple Networks which provides a step by step example of inputting a configuration e To import data from Cisco Wan Manager CWM see the chapter Configuration Extraction Tool to import or export WANDL files see the chapter Third Party Interface to import or export Microsoft Excel files see the chapter SpreadSheet Interface For descriptions of the fields contained in the Configure menu selections refer to Chapter 4 Configuration Tables and Fields Note The NMT assumes that the version of the switch software you are using is the same as that of the NMT software If that is not the case select Model Settings from the Configure menu and specify the switch software version you are using by entering a release number next to Network Parameter Switch Software Release Individual platforms can have unique switch software releases specified in the Site ta
145. raffic types such as an MGX 8850 a BPX an MGX 8230 or MGX Connections connection end point sites 8250 or an IGX switch with 8 2 5 functionality Quantity Enter the number of connections Type field Enter ABR CBR VBR or UBR MCR Fields Enter minimum All traffic values MCR PCR QIR CIR are given in cells per cell rate or Committed second for ATM traffic Information Rate or Sustainable Cell Rate for UBR PCR Fields Enter peak cell rate Cisco WAN Modeling Tools Guide I 0L 10426 01 Rev A0 ET Chapter4 Configuration Tables and Fields B Interface Table Two Segment Connections Use the NMT to model ATM to Frame Relay interworking connections and ATM to Circuit Emulation connections Refer to Table 4 10 for information on modeling ATM and FR connections Refer to Table 4 11 for information on modeling ATM to CE connections Table 4 10 FR ATM Interworking Connection Configuration Topic Required Settings Comments Modeling Bursty Traffic table Use ATM FR when the ATM interface at Sitel interworks to a ATM to Frame Relay interface at Site2 Use FR ATM when a Frame Relay Frame Relay Type field Enter ATM FR or FR ATM interface at Sitel to interworks to an ATM interface at Site2 The ATM end must support the specified traffic type i e must be a BPX or an IGX with 8 2 5 functionality All traffic values MIR PIR FR ATM are given in kbps for ATM traffic Table 4 11 ATM to C
146. ral other CET commands that may help you more effectively use the software svp dmp Use this command to if the CET generates a defective cnf file This command should be run immediately after you run the svp2cet command This command dumps the data from CWM tables into a series of dmp files These files can be analyzed by your Cisco customer support representative Enter this command as in the following example svp dmp netw name nwt name is the name of the network e svp rev Use this command to find out the CWM revision level e swt rev Use this command to find out the software revision level of your switches Cisco WAN Modeling Tools Guide Chapter9 Configuration Extraction Tool Troubleshooting CET W adj2nmt Use this command to recreate manual changes on previous extractions to current extractions e sniffcnf ntwk name Use this command to obtain an on screen summary of the network topology This is useful for a high level check that the data extraction was successful The following CET installation commands are not required to run unless NMT was installed as stand alone cetlink Use this command to copy the necessary CET files to your project directory You can invoke it by running the command CETHOME cetlink e cetrel Use this command to remove the CET software from your project directory To obtain help about any of the CET commands enter the command followed by n for example cet2nmt h A
147. re Includes a map tool selection for creating a graphical representation of your network e Report Provides options for generating defining and displaying reports e Maintenance Includes selections for modifying prices and part names and for specifying line costs e Help Provides information about how to use the program and describes many of the menus and menu items in the NMT e Quit Exits the NMT application Cisco WAN Modeling Tools Guide Chapter3 Using the NMT File Menu File Menu Figure 3 2 NMT Design Menu All Menu Options Displayed EA Network Modeling Tool 9 2 0 BEE FILE EXECUTE DISPLAY QUIT View Results Sites Links IPX Pricing Total Links Load FR amp ATH Ports Data amp Yoice Ports Routes Links Voice Traffic 28535 NMT204 8 4 0 gt tmp NMT tutorial model SwSw Release 920 gt own Enter select lt Esc gt previous window When you highlight a menu item a one line description of the selection is displayed beneath the menu The NMT Design menus and their menu items are further described in the sections that follow You can access the following commands from the File menu in the Network Design Tools window e New Opens a new file Clears all read and entered topology information e Open Opens a previously saved file e Save Saves the current configuration e save as Saves the current con
148. ry includes average hop count and histogram data of the hop counts Note In selecting reports in the REPORT DEFINE menu the Network Summary report has two parts Network Price and Routing Summary 0L 10426 01 Rev A0 Cisco WAN Modeling Tools Guide Bg Chapter6 NMT Reports Link Load Report The Link Load report displays the load resources on each link in the network based on the static load model In the example below den sea is a cell based link where the bandwidth is 92 utilized This link contains 80000 cells for CBR ATM traffic 7515 cells of frame relay and has a statistical reserve of 600 which is not included in the total There are 55 PVCs on the first link The second link nyd pit uses only 6 of the bandwidth but has reached the maximum number of PVC s allowed on the link Note that this is a packet based trunk as the units are pps The third link lax pit is a T3 cell based trunk on a BTM card The units displayed are packets because the constraint on this link is the number of packets that can be received by the IGX bus The fourth link lax nyd is also a cell based trunk For this link both the packet load and the cell load are listed because in this case the cell load is the constraint This is because the combine time outs are set low so most voice and data cells contain only one packet If the link is partitioned for both AutoRoute and PNNI the usage of each is displayed Note
149. s Changing Default Feeders table You can specify the maximum speed Parameters Hub ID field Enter Slot Port e g 6 4 of the feeder trunk for example 64 kbps 128 kbps or 256 kbps Type field Enter 3810 for any MC3810 f If you specify a speed of 0 NMT Speed field Enter the speed you want chooses the best one Data Traffic table Voice Traffic table Bursty Traffic table Hub 1 ID field Enter the Hub ID value entered in the Feeders table e g 6 4 Hub 2 ID field Enter the appropriate Hub ID value FastPAD A FastPAD connection is a connection where at least one end terminates on a FastPAD FastPADs always connect to the network on a Frame Relay composite link to an FTM or FTC card FastPAD enables you to concentrate voice and data connection types as a Frame Relay connection joined to an FTC or FRM card NMT designs FastPADs automatically when FastPAD connections are added to the Bursty Traffic Data Traffic or Voice Traffic table and the model is based on switch software release versions less than 8 2 5 or 8 4 0 to 8 4 9 NMT will also design FastPADs when FastPADs are specifically called for in the Feeders table and connection hub IDs match Feeders table hub IDs The FastPAD comes in two sizes one with eight slots and one with four slots called the FastPAD micro By default NMT e Configures as many FastPADs as required to support the traffic e Chooses an 8 slot FastPAD unless no more than four slo
150. s Optional table for card slot assignment e Groups and Networks PNNI domain names parameters hierarchy and network domain names Cisco WAN Modeling Tools Guide Chapter3 Using the NMT File Menu W e Nodes User defined node types and restraints e Parameters Global network settings and model options e Utilities Utilities for making global modifications to the configuration file Table Scan Scans all loaded configuration tables for errors Edit Options Modifies the preferences e Read Opens a previously saved file This option is the same as Open in the File menu e Write Saves the current configuration under a new name This option is the same as Save as in the File menu The configuration tables define all the network elements necessary for the model and their parameters All parameters not specified will default to the latest part available or the maximum setting or the standard setting Many network elements can be defined explicitly in tables or if not the NMT will automatically generate implicit network elements Figure 3 4 shows an example of a configuration table Figure 3 4 Sites Table Network Modeling Tool 8 4 0 Network Sites Site Type Size Used Fdr HEP Red Cab Power Eth DFM S R VNS FrFac Bundle Modem EC Domain JN IGX BC FC RLC Paris IGX 32 N Y Y Ti D Y N N N 1 14 32 0 Y N N Ei NIC Y Boston IGX 16 N Y Y Ti A Y N N N 1 14 32 0 Y N Y Ti NIH Denve
151. s Guide EIN OL 10426 01 Rev AO Chapter8 NMT Map Navigating Though a Network View W Navigating Though a Network View To display a physical network such as the example in Figure 10 2 click on the group icons To move down the hierarchy select an icon and click the left mouse button The map will now display all the nodes and links in that icon s peer group Border nodes are shown with cross hatches on the node icon See Figure 8 3 Figure 8 3 Two Level Hierarchy Second Level Network Design Topology NMT1347 File Access Groups Background Topology Options Help 49157 To move up the hierarchy select an icon and click the right mouse button Note Nodes that do not have map coordinates will appear clumped together in the upper left corner You must drag them to their proper place on the map In a multiple level hierarchy a left mouse button click on the highest level group icon exposes the next level of logical nodes Logical nodes are represented by circles A left mouse button click on the first level node exposes the second level nodes associated with that node Figure 8 4 I OL 10426 01 Rev AO Cisco WAN Modeling Tools Guide Chapter8 NMT Map E Navigating Though a Network View Figure 8 4 Three Level Hierarchy Second Level I Network Design Topology NMT13473 File Access Groups Background Topology Options NORTHEAST SOUTHEAST 49159 A left mouse button c
152. s Informix database size Symptom REXX Error 48 Failure in System Service Probable Causes Not enough memory available This usually refers to swap space To see how much swap space is available use the pstat S or swap s command To see how much memory is available use the dmesg grep avail mem command Solution Close all other applications that use a lot of memory such as Sun s file manager or Netscape Symptom REXX Error 41 Bad Arithmetic Conversion Probable Causes The input data contained a blank rather than a digit Solution No workaround Contact Network Modeling for help 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide H Chapter9 Configuration Extraction Tool Remote CET Extracts Symptom The following error message is displayed DB not found Console file from the svp2cet command shows some queries and then SQL error 802 Probable Causes The CWM is a newer version than NMT and has tables or fields that NMT does not recognize Solution Upgrade NMT to a later version that supports that version of CWM Symptom The cet2nmt command displays the following error REXX Service not available Probable Causes The command ran out of memory Solution Reconfigure your system to use more swap space on disk Symptom The UTIL values extracted are bad Probable Causes You are using CWM 9 2 09 and do not have patch
153. s all routed connections and their complete routes amp Note This is a long report If you do not need to see the routed connections use the X option in the REPORT DEFINE menu to prevent the generation of a Connection Routes report This improves Failed Connections Report performance The Failed Connections Report displays all the connections that could not be routed and the reason Possible reasons a connection failed are listed in Table 6 1 Table 6 1 Failed Connection Reasons Reason String Meaning Too Many Hops Hop Count required to route the connection was too large For AutoRoute hop count maximum is 10 No Path No connectivity in the topology to route this connection No Direct Path No direct route specified in the preferred actual connection route Out of Capacity Not enough bandwidth capacity on the lines Out of Space Not enough index resources usually VC count on a link is exceeded Out of Bus Not enough bandwidth on a bus of one or more switches required to route the connection No Fdr Link Cap Not enough bandwidth capacity on a feeder link Too Big Cost Connection cannot be routed without exceeding the maximum cost specified This pertains to AutoRoute networks Too Big AW Connection cannot be routed without exceeding the maximum Administrative Weight This pertains to PNNI networks Too Big CTD Connection cannot be routed without exceeding the maximum Cell Transf
154. s node type NodeConns 3500 M Maximum number of connections that can terminate TERM CONNS on this type of node VIA_conns M H Number of connections that can pass through the VIA CONNS node type without termination PNNI Con M H Number of PNNI connections that can terminate or PNNI_CONNS ns pass through via at this node type Bus Load M H Maximum bus load of this node type in Mbits sec BUS CAP IFC M H Maximum PNNI Interfaces on this PLATFORM IFCS Network Settings The model settings page contains global parameters used in defining settings in the network Table 3 14 describes the global parameters used to define network settings Table 4 17 Model Setting Configuration Parameter Modeling Effect BPX IGX SwSw Release The switch software release to assign to all BPX and IGX switches in the network Specific sites can override this global value if they have an entry in the swrel field in the site table MGX SwSw Release The switch software release to assign to all MGX switches in the network Specific sites can override this global value if they have an entry in the swrel field in the site table V Delay Limit Maximum delay in ms that can be sustained for this connection type if applicable C Delay Limit Maximum delay in ms that can be sustained for this connection type if applicable I 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide H Chapter 4 Ne
155. s not listed in the sqlhosts file or the Registry Probable Informix sqlhosts file has not been updated Causes Solution Perform Step 2 in the Setup Procedure Symptom A command returns Informix error 951 Incorrect password or user lt yourlocaluserID gt is not known on the database server Probable The local host doesn t have friendly access to the remote host Causes Solution Perform Step 2 of the Setup Procedure making sure that the lt remotehostaddr gt used is the same as that used in the sqlhosts file of Step 3 the setup procedure Symptom A command returns the message Cisco Wan Manager StrataView Plus on host hostname is either not installed or not accessible Probable The remote host does not allow remote shell access Causes Solution Perform Step 4 the setup procedure Cisco WAN Modeling Tools Guide Chapter9 Configuration Extraction Tool Remote CET Extracts M Symptom Command returns Informix error 908 Probable The remote CWM site is not up and running Causes Solution Verify the remote CWM site is running and can be pinged from your site Cisco WAN Modeling Tools Guide 0L 10426 01 Rev AO EIN Chapter9 Configuration Extraction Tool B Remote CET Extracts Cisco WAN Modeling Tools Guide WANDL Third Party Interface This chapter describes how to use the Third Party Interface TPI Conversion Plug in and contains the fol
156. s the map application Save Save the map Quit Close the map Messages Browse Appears only if there are error messages Messages Note The Access Domains and Help menus and the Configure option in the Utility menu are not enabled To enlarge a region of the map hold down the left mouse button and select the region of the map you want to enlarge To move a map hold down the middle mouse button and drag the map within the window To reduce an enlarged map click one or more times on the right mouse button with your cursor in the map window To return a map to its default size reselect the map from the Map menu The map tool uses color coding to help you recognize important aspects of your network topology The color coding is described in Table 6 2 Table 6 3 Network Topology Map Color Coding Color Node Green Node is functioning normally Link is functioning normally and is below threshold capacity Yellow Not applicable Link is above minimum but below high percent tolerance Red Node is not working or is being used for failure analysis Not all connections at this node could reroute Link is above capacity threshold tolerance E Cisco WAN Modeling Tools Guide 0L 10426 01 Rev A0 _Chapter6 NMT Reports Using the Map Tool W Figure 6 1 Example of Network Topology Map Showing Threshold Dialog Box Network Design Topology MMT204 Access Domain Map Upd
157. se the value in the cost field of the connection table or set it to zero to remove the restriction Link is constrained by either the Receive Rate field or the VT Rate field if the link is a Virtual Trunk Raise the values in these fields or set them to 0 to remove the restriction With AutoRoute the stat reserve is excluding too much bandwidth Reduce the stat reserve fields Link is unavailable for this type of connection because of a restricted media Satellite for example or the trunk has not been configured for a specific type of traffic For AutoRoute check the Ad field in the Connection Table to see if that connection must avoid any link media types Set this field to blank for no restrictions Check the Traffic field in the Link Table to see what traffic types can travel on that link If it is blank all types are allowed H Cisco WAN Modeling Tools Guide 0L 10426 01 Rev A0 Chapter5 NMT Execute Commands Optimize Command W The following tables describe how to troubleshoot problems with Execute commands Symptom IGX Links are using more bandwidth than expected for voice and data calls Probable Voice and Data TS and NTS connections on the IGX are translated into Causes fast packets When these 24 byte packets with 20 bytes of payload are inserted into cells the packet header is not removed and either one or two packets are inserted into the cell The static administratio
158. sion Solution Enter the XHost command the console on the displaying platform Symptom NMT displays the following error message Xterm X error Can t open display lt IP ADDRESS 00 gt Probable Causes IP address is unreachable Solution check address and network connectivity Cisco WAN Modeling Tools Guide Using the NMT This chapter provides instructions for using the NMT interface presents an overview of the modeling process and lists NMT commands that update or extract information from NMT configuration files This chapter contains the following sections e NMT Startup e NMT Menu Bar e File Menu e Keyboard Commands e Modeling Processes e Error Checking e Work Flow The NMT models a network based on your input Using your input about the network you want to model the NMT helps identify the hardware needed by provisioning the chassis with front cards and back cards The NMT routes the connections using the same software as the WAN switches based on the Connection Admission Control CAC The NMT is aware of all physical and logical constraints that would prevent a connection or a trunk from being provisioned or routed NMT is also aware of the different features and constraints in each major switch software release Connection routing can be verified in the network s basic state The connection re routing can be verified for any failure scenario Simulation of failure of all network elements can verify th
159. st originate and terminate on a FastPAD If the switch software release supports the MC3810 NMT will design MC3810s not FastPADs unless the hub ID fields and the Feeder table are used For each feeder back card entry the NMT establishes a dedicated virtual circuit that connects one data port on one FastPAD to one data port on another FastPAD Adding FastPAD Voice Traffic table FastPAD dedicated voice connections Dedicated Voice Type field Enter ATC8 ATC12 ATC16 CELP8 or CELP48 The numbers MUSt originate and terminate on a Connections refer to kbps FastPAD BC Back Card field For each end of the connection enter the back card of For each back card field entry the the FTC FTM card that links the hub IPX IGX switch to the FastPAD T1 E1 NMT establishes a dedicated virtual V ot X circuit that connects one voice card on i one FastPAD to one voice card on Fdr BC Feeder Back Card field For each end of the connection enter V for another FastPAD the VFC 03 card Adding FastPAD Bursty Traffic table A FastPAD bursty data connection Bursty Data Type field Enter FR may have one end at a FastPAD and Connections the other at an IPX IGX FRP FRM BC Back Card field If the end has a FastPAD enter the back card of the FTC that links the hub IPX IGX switch to the FastPAD T1 E1 V or X If the end is not a MC3810 enter the back card of the FRP FRM at that end also T1 E1 V or X Fdr BC Feeder Back Card fiel
160. t for AVD Avoid Specify the media types that should be avoided when the connection is routed Red N P Redundancy Specifies whether RED connections are going to be redundant Applies to CDP redundancy Util 40 40 E Trunk utilization based on PCT_UTILI Defaults used prior to minimum information rate PCT UTIL2 Release 8 5 and for MIR percentage Default is x FastPAD The data 40 because studies have may be unreliable if it shown that during changed after adding a conversations one end of the connection line is unused 6046 of the time H Cisco WAN Modeling Tools Guide OL 10426 01 Rev A0 Chapter 4 Configuration Tables and Fields Voice Table Table 4 6 Voice Table continued Field Defaults Notes Description and Comments DBF CET TPI BC TUTI E H Back card type CDP Set Use BC1 Jk workstation Help or F12 key for choice list Bee Until Release 9 1 field was determined heuristically based on the observed ports used Fdr1ID 0 E Feeder 1 ID Logical port FDR ID number for the connection at i 3810 or FastPAD feeder at the ME 3810 feeders ais local site not used not supported Fdr2ID 0 E Feeder 2 ID Logical port FDR ID2 number for the connection at a 3810 or FastPAD feeder at the MO aN feeders ate remote site not used not supported FdrBc O H Feeder back card voice card FDR INTI p type FDR INT2 Index 0 O SNMP Connection Index for
161. t to do e Quit Cancel When you save your work the NMT map writes the group names and map coordinates into the NMT local config directory 49171 Cisco WAN Modeling Tools Guide I 0L 10426 01 Rev A0 EXHI Chapter8 NMT Map B Retrieving Map Data Into NMT Retrieving Map Data Into NMT Once map data has been saved in the map that data can be imported into NMT To do this select Import Map Data from the NMT File Menu Figure 8 17 Figure 8 17 NMT File Menu Import Map Data Screen Natwoark Nacian Tanalnau SMAAT1GG74 Ee B From ipx7 to ipx4 Endi End2 Type Media Capacity PVCs Used ipx7 3 1 ipx4 9 1 Ti Z 8000 8000 213 192 full ipx7 7 1 ipx4 11 1 E1 Z 10666 10666 213 52 full 49161 Using the Map Tool with Fail Analysis After performing a failure analysis click Update in the map window menu bar and select Update Map Any site that did not reroute a connection for any of the link failures turns red Using the Map Tool to Analyze Traffic Levels Click the Options menu and select Thresholds The Thresholds dialog box contains two sliding bars Critical and Warning that allow you to define critical and warning as a percent of total bandwidth By sliding the bar you establish the threshold at which the amount of traffic is considered excessive critical or close to excessive warning The NMT displays excessive traffic in red close to excessive traffic in yell
162. terminated on that card PPP types of traffic on MPSM 16TIEI cards MER links and connections on MPSM T3E3 155 cards Cisco MGX 8880 node not supported by CWM 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide B Chapter1 Overview of the WAN Modeling Tools B DataTranslation Tools Data Translation Tools The NMT Data Translation Tools use data exchanged between the NMT and other network design software aides to create a complex network model These tools allow the NMT to interface with other Cisco products as well as third party products Table 1 1 describes the data translation tools Table 1 1 Data Translation Tools NMT WAN Modeling Tool Description Configuration Extraction Tool CET Reads the database of a Cisco Wan Manager CWM system and creates an NMT configuration file with all critical topology and connection information For further description see Chapter 10 Configuration Extraction Tool Third Party Interface TPI conversion Translates NMT Data into WANDL format plug in WANDL is a design product that helps you optimize generic networks TPI also provides translation from WANDL to NMT configuration files for more information see Chapter 11 Third Party Interface SpreadSheet Interface SSI conversion Translates the NMT configuration file tables plug in into standard DBF and XLS formatted files for use in other systems It also supports an EXCEL XLS interface for entering
163. the map and the functions of the menu items in the NMT map About Describes the map application Note Step 1 Step 2 Step 3 Step 4 Select Map Tool menus by using the left mouse button except where noted To create a graphical display of the new configuration perform the following steps Choose Topology from the menu bar and click on Update Map to import the most recent configuration Choose Background from the menu bar in the Network Design Topology window and click on Select to choose a map appropriate to your configuration Drag each node to its approximate location on the map The node icons colored squares are stacked in the upper left corner of the window Place your cursor over a node hold down the left mouse button and drag the node into place Repeat this step for each node To save your map choose File from the menu bar and select Save 0L 10426 01 Rev A0 Cisco WAN Modeling Tools Guide Bg Chapter8 NMTMap B Adding New Groups Adding New Groups To add a new group perform the following steps Step1 Select Groups from the Main Menu Step2 Select Add new from the Groups Menu The cursor changes to a large black dot resembling a group icon Step3 Select a node that will be in the new group Center the cursor over the node and click the left or right mouse buttons A dialog box will appear Figure 8 10 Figure 8 10 Add Group Dialog Add Group Name o
164. the software is installed you need to create a working directory from which you will launch NMT Load the NMT Software Use the following procedure to create a dedicated subdirectory that will store the NMT software The installation process creates a subdirectory name and a release number For example usr users NMT 151 Note Step 1 Step 2 Step 3 Multiple NMT feature releases can co exist on the UNIX platform If a maintenance upgrade is done the upgraded NMT release replaces the previous release To create the software installation directory perform the following steps Log into the account that will own the NMT software Create a dedicated directory where the NMT releases are stored Verify that you are in the correct directory by entering the following command pwd The path with the release number is the same path you will use when you create a working directory Cisco WAN Modeling Tools Guide Chapter2 Installing the Cisco WAN Modeling Tools Installing the NMT W Step4 If you are installing from a cd on a Solaris platform perform the following steps a Enter the following command volcheck b Enter the following command Note cp cdrom nmt151 install 151 tar Z If this step fails because the file is not found substitute nmt151 1 for nmt151 c Enter the following command uncompress 151 tar d Enter the following command tar xf 151 tar This creates the 151 directory containing all t
165. tion titles Both new and experienced users will benefit from these publications For current Cisco Press titles and other information go to Cisco Press at this URL http www ciscopress com e Packet magazine is the Cisco Systems technical user magazine for maximizing Internet and networking investments Each quarter Packet delivers coverage of the latest industry trends technology breakthroughs and Cisco products and solutions as well as network deployment and troubleshooting tips configuration examples customer case studies certification and training information and links to scores of in depth online resources You can access Packet magazine at this URL http www cisco com packet iQ Magazine is the quarterly publication from Cisco Systems designed to help growing companies learn how they can use technology to increase revenue streamline their business and expand services The publication identifies the challenges facing these companies and the technologies to help solve them using real world case studies and business strategies to help readers make sound technology investment decisions You can access iQ Magazine at this URL http www cisco com go iqmagazine e Internet Protocol Journal is a quarterly journal published by Cisco Systems for engineering professionals involved in designing developing and operating public and private internets and intranets You can access the Internet Protocol Journal at this URL http ww
166. to order Cisco products Once the NMT processes the data it provides configuration information in the following form Updated tables Modifies your configuration tables as necessary to create a working configuration e Reports Provides a series of reports that describe links nodes part numbers costs and so on e Graphical display Displays your network design graphically with node icons and maps Import Export Displays data imported exported to other systems The NMT always selects the newest available parts for a function based on the software release you specify You can explicitly request older cards from the input tables Some obsolete parts are not supported Cisco WAN Modeling Tools Guide Chapter1 Overview of the WAN Modeling Tools Cisco Products Supported by the NMT W Cisco Products Supported by the NMT New functionality is added in each release of the NMT to accurately reflect the current capabilities of the following Cisco equipment MGX 8850 MGX 8830 and MGX 8950 switches Enables a wide range of user services to be supported by the BPX service node Interfaces supported by the NMT include the following Frame Relay ATM User Network Interface UNI Circuit emulation nx TI El inverse multiplexing for ATM IMATM AUSM 8 UNI 3T3 interface using the SRM 3T3 module MGX 8220 MGX 8230 and MGX 8250 edge concentrators MGX Edge concentrators enable a wide range of user services to b
167. torial NoName SwSw Release 841 lt F1 gt field help lt F2 gt window help lt F8 gt or lt IunArw gt add line lt Esc gt exit window lt F10 gt abort z The primary CWM data source for the site table is the node table The primary WANDL data source and target for the site table is the MUXLOC file The Site Table fields are described in Table 4 1 Table 4 1 Site Table Field Defaults Notes Description and Comments DBF CET TPI Site M H Site name up to 10 characters NAME Translated to both Names are case sensitive Keep Reduced to unique Short name and Long the names short and easy to name n 10 char name if remember This field must be i i onger than 10 revised before you revise any chars other fields or tables f Node Type IGX M H Type of product IGX BPX TYPE hi nodeparam file MOGGIO Limitations IGX not recognized until Release 8 2 Type Used X Protected field that shows the n a size of the node after the NMT builds a network Cisco WAN Modeling Tools Guide Chapter 4 Configuration Tables and Fields Field Defaults Table 4 1 Notes Site Table continued Description and Comments DBF CET TPI Sites Table Site Type Switch M H Function of platform at the site Can be a switch feeder controller or a stand alone unit STYPE Restrictions imposed on links SwRel Software release of the switch es
168. ts and one low speed data port are needed in which case the NMT chooses the FastPAD micro e Acts on the assumption that the speed of the composite link is limited by the maximum speed supported by the FTC card 512 kbps Refer to Table 4 22 for information on modeling a network that uses FastPADs Cisco WAN Modeling Tools Guide Chapter 4 Configuration Tables and Fields Table 4 22 FastPAD Configuration Topic Required Settings FastPAD MI Comments Setting Switch Software Release Model Settings table Make sure that the value of Switch Software Release is set to the release that is to be modeled If that value is one that defaults to FastPAD 817 to 824 or 840 to 849 NMT will design FastPADs for any non voice feeder connections All other values default to MC3810 for non voice feeder connections FastPADs will not be designed for non voice connections under the default switch software release 920 To force NMT to use FastPADs the Feeder Table must be used see Changing Default Parameters below Adding FastPAD Data Connections Data Traffic table Type field Enter the data traffic speed BC Back Card field For each end of the connection enter the back card of the FTC FTM card that links the hub IPX IGX switch to the FastPAD T1 El V or X Fdr BC Feeder Back Card field Enter the connection interface on the line side of the FastPAD S R V V1 or V6 FastPAD data connections mu
169. twork Settings Table 4 17 Model Setting Configuration continued Parameter Modeling Effect P Delay Limit Maximum delay in ms that can be sustained for this connection type A Delay Limit Maximum delay in ms that can be sustained for this connection type if applicable NTS Delay Limit Maximum delay in ms that can be sustained for this connection type if applicable CVM CVM Delay Limit Maximum delay in ms that can be sustained for this connection type if applicable Voice Combine Timeout Timeout units 0 125 ms to combine fast packets to cell for voice connections Range is 0 255 TS Data Combine Timeout Timeout units 0 125 ms to combine fast packets to cell for time stamped data connections Range is 0 255 NTS Data Combine Timeout Timeout units 0 125 ms to combine fast packets to cell for non time stamped data connections Range is 0 255 Link Booking Factor For PNNI the global booking factor to be applied to all PNNI link ports Range is from 1 to 200 Individual ports can be specified using the Interface Table Line Booking Factor For PNNI the global booking factor to be applied to all PNNI line ports Range is from 1 to 200 Individual ports can be specified using the Interface Table CAC Algorithm For PNNI which Connection Admission Control Algorithm to use CTD for CBR Cell Transfer Delay for CBR class of service in microseconds C
170. ult value Key fields such as site names are mandatory The file ssidoskt tar contains bat files that can assist you in untarring and tarring the dbf files on the PC Copy this file to the PC and then untar it in the directory where you will be working on NMT dbf files All system and data files are in binary format Note Enter the h command to display online help about a command s optional parameters 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide H Chapter 11 SpreadSheet Interface BE SsITroubleShooting SSI TroubleShooting The table below describes a common SSI problem and what can be done about it Symptom Network data gets rounded incorrectly when converting from Excel to NMT s CNF file Probable Causes The SSI user enters new connections or links in Excel using the SSI macros The user then runs NMT Unload macro and transfers the tarred DBF file back to Unix The user then enters the following commands run tar2nmt run nmt and then discovers that the hub IDs and data conn types have been converted to integers For example a HUB id 4 3 gt 4 or a data connection type 19 2 gt 19 Solution To avoid this corruption make sure that one of the following is true for your link connection tables The first line not the column header s but the first data line originally came from NMT and has not been modified in Excel All fields in the first line again first data
171. ulti segment and the backcard defines the connection type at the customer s premise The MCR and PCR fields define the load parameters of the connection and are key to estimating the bandwidth utilization and the port speeds The primary CWM source of the Bursty table is the USER_CONN table The WANDL file for translation is the demand file The Bursty Table fields are described in Table 4 7 Cisco WAN Modeling Tools Guide 0L 10426 01 Rev AO EXUM Chapter4 Configuration Tables and Fields E Bursty Table Table 4 8 Bursty Table Field Defaults Notes Description and Comments DBF CET TPI Site 1 M H Site name of the owner of a connection SITE1 Master node unavailable until 8 1 assumed to be Site 1 Port 1 0 E Logical slot port number at Site 1 You can IDI assign or let NMT automatically assign For multiport channelized cards the format is slot line port Site 2 M H Site name of the remote end of a SITE2 connection Port 2 0 E Logical slot port number at Site 2 You can p2 assign or let NMT automatically assign For multiport channelized cards the format is slot line port Qty 1 M Quantity Number of data connections CONNS Since slot port dlci a VPI VC1 are included quantity is always set at 1 Type VBR M H Type of connection Select FR for Frame TYPE Relay AMT FR for ATM to Frame Until Rel FR ATM for Frame Relay to ATM or g Bp e Eds select ABR CB
172. um speed of the composite link i e 64 kbps 128 kbps or 256 kbps If you specify FP a generic FastPAD NMT chooses the best one If you specify 0 as the speed NMT picks the best one H Cisco WAN Modeling Tools Guide 0L 10426 01 Rev AO Configuration Tables and Fields Chapter4 Configuration Tables and Fields Port Concentrator W Port Concentrator The Port Concentrator provides a method for concentrating voice and data connection types as a Frame Relay connection extending to an FTC or FRM card The NMT models and provisions Port Concentrators so that they support Frame Relay connections The card is modeled as a 44 port FRP card with the PC interface being optional but defaulting to V35 Refer to Table 4 23 for information on modeling a network that uses port concentrators Table 4 23 Port Concentrator Configuration Notes Topic Required Settings Comments Instructing the NMT Bursty table NMT designs port concentrators if to Design Port Type field Select FR ATM FR or FR ATM and only if you enter connections that Concentrators have port concentrator terminations BC back card field To specify a PC termination enter PC in the BC field of the site that has the PC The NMT rejects PC if the connection type is incorrect Geis bundling format is not supported for FRP PC Fdr BC feeder back card field Each PC termination can also specify which PC interface is required Enter V for V 35
173. ups from the Main Menu Select Delete from the Groups Menu The cursor will change to a skull and crossbones Select the group you want to delete and click the left or right mouse buttons A dialog box appears Figure 8 14 Click OK The box disappears Figure 8 14 Confirm Deletion From Group Dialog Box confirm Remova r Do you want to remove this object from its group Ems o wo e On the map display nothing appears to happen However when you click the right mouse button on a group to navigate up the hierarchy you hear an audible beep When you click the right mouse button on other nodes in that group the map closes the group and displays the next highest logical node The node you deleted is also displayed because it is no longer a part of the group Figure 8 15 Cisco WAN Modeling Tools Guide EIN OL 10426 01 Rev AO Chapter8 NMT Map Saving Your Work Ml Figure 8 15 Map Display after Deleting From a Group Network Design Topology NMT13473 File Access Groups Background Topology Options Help NORTHEAST WEST ooo SOUTHEAST 49159 Saving Your Work There are two ways to save work e Select Utility from the Main Menu then select Save from the Utility Menu Select Main Menu lt Utility lt Quit then select Save from the dialog box that appears Figure 8 16 Figure 8 16 Confirm Quit Dialog Box cocimQut CF G Map data has changed What do you wan
174. ures extensive online support resources In addition Cisco Technical Assistance Center TAC engineers provide telephone support If you do not hold a valid Cisco service contract contact your reseller Cisco Technical Support Website The Cisco Technical Support Website provides online documents and tools for troubleshooting and resolving technical issues with Cisco products and technologies The website is available 24 hours a day 365 days a year at this URL http www cisco com techsupport Access to all tools on the Cisco Technical Support Website requires a Cisco com user ID and password If you have a valid service contract but do not have a user ID or password you can register at this URL http tools cisco com RPF register register do Note Use the Cisco Product Identification CPI tool to locate your product serial number before submitting a web or phone request for service You can access the CPI tool from the Cisco Technical Support Website by clicking the Tools amp Resources link under Documentation amp Tools Choose Cisco Product Identification Tool from the Alphabetical Index drop down list or click the Cisco Product Identification Tool link under Alerts amp RMAs The CPI tool offers three search options by product ID or model name by tree view or for certain products by copying and pasting show command output Search results show an illustration of your product with the serial number label location highlighted
175. ursty Table Table 4 8 Bursty Table continued Field Defaults Notes Description and Comments DBF CET TPI Current_Ro O The current route from CET extractions Route is stored in Not available ute 19 fields until Release 7 2 Specific CR_SITE2 Trunk not CR_SITE3 available until CR_SITE4 Release 8 1 Current route not available CR_SITE20 for SV release 8 1 or 8 2 Routes are not available on PNNI networks Comments O Comment field Maximum of 20 characters CIRCUIT ID Not available Comment prior to field used as Release 7 2 the nor for SV connection release 8 4 label If no comment field a connection label is generated for WANDL demand file H Cisco WAN Modeling Tools Guide 0L 10426 01 Rev A0 Chapter4 Configuration Tables and Fields Bursty Table W Bursty Table Special Cases The Bursty Traffic Table configuration information will be different for the following special cases e ATM Connections e Two Segment Connections The configuration for these types of connections are described in the sections that follow ATM Connections Use the NMT to model ATM connections in the Bursty Traffic Table Refer to Table 8 1 for information on modeling ATM connections Table 4 9 ATM Connection Configuration Topic Required Settings Comments Modeling Bursty Traffic table The ATM sites must be in the Site table and must support ATM ATM Site 1 Site 2 fields Enter the t
176. utoRoute 5 1 AutoRoute Least Cost Routing 5 1 Preferred and Directed Routes 5 2 PNNI Routing 5 3 Partitioned AutoRoute PNNI Network 5 3 Fail Analysis Command 5 4 Build Sites Command 5 4 Optimize Command 5 5 NMT Command Results 5 6 NMT Reports 6 1 Site Report 6 1 Link Report 6 1 Network Summary Report 6 1 Link Load Report 6 2 ATM amp FR Ports Report or Bursty Data Ports Report 6 3 Data amp Voice Ports Report or Voice amp Data Ports Report Connection Routes Report 6 3 Failed Connections Report 6 3 Parts List Report 6 4 Resource Report Card Statistics Report 6 4 PNNI Topology Report 6 5 0L 10426 01 Rev A0 Contents M Cisco WAN Modeling Tools Guide H E Contents CHAPTER 7 CHAPTER 8 cHAPTER 9 cHAPTER 10 View Summary 6 5 Using the Map Tool 6 5 NMT Utilities Command Line 7 1 NMT Map 8 1 NMT Map Startup 8 1 Navigating Though a Network View 8 3 Obtaining Link Information Physical Links 8 5 Obtaining Link Information Logical Links 8 5 Zooming the Map 8 6 Panning the Map 8 7 Map Color Coding 8 7 Controlling Map Displays in NMT 8 7 NMT Map Main Menu 8 8 Adding New Groups 8 10 Adding Nodes to Existing Groups 8 11 Deleting Groups 8 12 Deleting Nodes or Groups from Existing Groups 8 12 Saving Your Work 8 13 Retrieving Map Data Into NMT 8 14 Using the Map Tool with Fail Analysis 8 14 Using the M
177. values in the Keep field and links specified in the preferred routes for the connections 2 The connections are routed and the complete path is verified During this process the Routing Connections message box displays the total number of network connections and maintains a running tally of the number of connections successfully routed 3 The program generates several reports These include informatory messages which describe the algorithm used to generate the resulting topology initial connection based minimum span tree or Link table S Note If the optimizer fails to find a topology based on initial topology and the minimum span tree algorithm it will build a topology based on the Link table All links marked as removable will be removed by the optimizer otherwise they will be used for connections You can stop the optimize process by pressing Escape If you press Escape during the first step when the system is calculating all the possible topologies you are given the option to cancel all processes or continue with the second process using the best topology found so far If the NMT approach to optimization is insufficient consider using the TPI to translate your network into WANDL format WANDL offers several different optimization methods See Chapter 12 Third Party Interface Optimize will write up an informatory message describing which algorithm it used to obtain optimal topology Table 5 3 Optimize Inf
178. w cisco com ipj Cisco WAN Modeling Tools Guide Preface Obtaining Additional Publications and Information W e World class networking training is available from Cisco You can view current offerings at this URL http www cisco com en US learning index html Cisco WAN Modeling Tools Guide 0L 10426 01 Rev AQ EM Preface E Obtaining Additional Publications and Information Cisco WAN Modeling Tools Guide Overview of the WAN Modeling Tools This chapter provides an overview of the applications that make up the Cisco WAN Modeling Tools and of the Cisco products they support Cisco WAN Modeling Tools Overview Cisco WAN Modeling Tools includes the following tools e The Network Modeling Tool NMT e The Configuration Extraction Tool CET e The Third Party Interface TPI e The Spread Sheet Interface SSI The NMT is the primary application of the Cisco WAN Modeling Tools NMT verifies the provisioning and predicts the routing behavior of the network NMT supports the following Cisco MSSBU ATM platforms e MGX series e BPX series e IGX series For each major switch software release NMT verifies the physical and logical provisioning of the front and back cards that support the specified topology NMT also verifies connection routing and rerouting capabilities of each supported switch in the network The CET SSI and TPI tools enable the exchange of information between the NMT and other applications
179. work using a classic node link and demand model The nodes are the sites in the site table which are provisioned as Cisco MSSBU WAN switches The links are the inter switch trunks in the link table The connections are specified in the voice data and bursty table The model provisions the network using the latest Cisco equipment unless otherwise specified The model will verify that the network will route all connections or will report on what resources have been exceeded The NMT tool predicts the behavior of a WAN network that uses Cisco WAN switches MGX BPX and IGX product series as follows 1 2 3 S the user specifies the site locations and switch types the links and the connections in the network the NMT uses the AutoRoute and PNNI routing algorithms identical to those in the products based on the Connection Admission Control CAC parameters the NMT verifies that the links and connections can be provisioned and that the connections can be routed the WAN network is modeled at the chassis front card and back card granularity level Note All connections used by the NMT are ATM connections with the exception of some legacy IGX voice and data services Keep the following in mind when you use the NMT The NMT provides the primary reason any connections cannot be provisioned or routed based on the CAC rules The NMT does not do discrete simulation and no real time statistics are involved in the modeling
180. ww cisco com en US partner ordering e Nonregistered Cisco com users can order documentation through a local account representative by calling Cisco Systems Corporate Headquarters California USA at 408 526 7208 or elsewhere in North America by calling 1 800 553 NETS 6387 Documentation Feedback You can send comments about technical documentation to bug doc cisco com 0L 10426 01 Rev A0 Cisco WAN Modeling Tools Guide E Preface E Cisco Product Security Overview You can submit comments by using the response card if present behind the front cover of your document or by writing to the following address Cisco Systems Attn Customer Document Ordering 170 West Tasman Drive San Jose CA 95134 9883 We appreciate your comments Cisco Product Security Overview Cisco provides a free online Security Vulnerability Policy portal at this URL http www cisco com en US products products security vulnerability policy html From this site you can perform these tasks e Report security vulnerabilities in Cisco products e Obtain assistance with security incidents that involve Cisco products Register to receive security information from Cisco A current list of security advisories and notices for Cisco products is available at this URL http www cisco com go psirt If you prefer to see advisories and notices as they are updated in real time you can access a Product Security Incident Response Team Really Simple S
181. y NMT Used in WANDL for tariff lookups Weight 0 0 User defined weight that can be WEIGHT nodeweight file used for generating links and or connections using the MESH commands in the CONFIG UTILITIES menu Network 0 The network domain name this NET NAME site is assigned to DOMAIN in the muxloc file 0L 10426 01 Rev AO Cisco WAN Modeling Tools Guide B Chapter4 Configuration Tables and Fields MH Links Table Configuring Sites Example Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Step 7 Step 8 This section provides an example for configuring Sites Enter the information shown in Table 4 2 into the Sites table Table 4 2 Field Changes for the Sites Table BC Back FC Front RLC Redundant Site Type Power IGX Card Card Link Card Paris IGX D N El NTC Y Boston IGX A Y TI NTM N Denver IGX A Y T3 BTM N N Note Except where noted in this table each node uses default values Use the left and right arrows to highlight Configure and press Enter Select Sites and press Enter A new sites table is displayed S Note Select a menu choice by using the up and down arrow keys or by typing the first letter of the item selected Highlight the Site field by pressing the Down arrow Type Paris You have now created a site To modify the NMT default site values cursor or tab to each of the fields listed in Table 4 2 and enter the dat
182. yndication PSIRT RSS feed from this URL http www cisco com en US products products psirt rss feed html Reporting Security Problems in Cisco Products Cisco is committed to delivering secure products We test our products internally before we release them and we strive to correct all vulnerabilities quickly If you think that you might have identified a vulnerability in a Cisco product contact PSIRT e Emergencies security alert cisco com e Nonemergencies psirt cisco com Tip We encourage you to use Pretty Good Privacy PGP or a compatible product to encrypt any sensitive information that you send to Cisco PSIRT can work from encrypted information that is compatible with PGP versions 2 x through 8 x Never use a revoked or an expired encryption key The correct public key to use in your correspondence with PSIRT is the one that has the most recent creation date in this public key server list http pgp mit edu 11371 pks lookup search psirt 40cisco com amp op index amp exact on In an emergency you can also reach PSIRT by telephone e 1877 228 7302 e 1408 525 6532 Cisco WAN Modeling Tools Guide Preface Obtaining Technical Assistance M Obtaining Technical Assistance For all customers partners resellers and distributors who hold valid Cisco service contracts Cisco Technical Support provides 24 hour a day award winning technical assistance The Cisco Technical Support Website on Cisco com feat

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