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Avaya Configuring DECnet Services User's Manual

1. Router DECO0009A Figure 1 9 Static Adjacencies Defined for Routers Residing in Different Areas You can also disable the Level 2 Topology Update parameter if you want to prevent the Bay Networks router running DECnet from sending Level 2 topology update packets to other routers In this case you use static routes to establish transmission paths between connected routers Refer to Chapter 3 for details about configuring static adjacencies and setting the Router Hello Level 1 Topology Update and Level 2 Topology Update parameters 114050 Rev A DECnet Overview For More Information For technical details about DECnet protocol implementation see DECnet Digital Network Architecture Phase IV Routing Layer Function Specification Version 2 0 Digital Equipment Corporation December 1983 114050 Rev A 1 19 Chapter 2 Enabling DECnet Services This chapter describes how to enable DECnet Phase IV services It assumes you have read Configuring Routers and that you have 1 Opened a configuration file 2 Specified router hardware if this is a local mode configuration file 3 Selected the link or net module connector on which you are enabling DECnet Phase IV or configured a WAN circuit if this connector requires one When you enable DECnet services you are required to specify only a few parameters The Configuration Manager supplies default values for the remaining parameters If
2. Hello Timer parameter to the same value throughout your DECnet network 114050 Rev A 3 13 Configuring DECnet Services Parameter Default Range Function Instructions MIB Object ID Parameter Default Range Function Instructions MIB Object ID Max Routers 33 0 to 33 Specifies the maximum number of routers attached to this circuit including the router on which you are configuring DECnet services We recommend accepting the default value If you change the default refer to your network topology drawing to determine the number of routers and then enter it here 1 3 6 1 4 1 18 3 5 2 2 1 12 Router Priority 64 0 to 127 Determines which router becomes the designated router on a circuit The designated router performs additional services for other nodes attached to the circuit All these nodes know the address of the designated router When an end node attempts to send a packet to a destination node that is not in its destination address cache or does not reside on the circuit it sends the packet to the designated router which forwards the packet toward the destination If you do not choose a designated router or if you assign two or more routers the same priority the router with the highest Node ID becomes the designated router by default Enter a router priority value from 0 to 127 If you want this node to be the designated router on this circuit assign it the highest priority
3. Configuring DECnet Services Router Software Version 11 0 Site Manager Software Version 5 0 Part No 114050 Rev A August 1996 Bay Networks rS Bay Networks 4401 Great America Parkway 8 Federal Street Santa Clara CA 95054 Billerica MA 01821 Copyright 1988 1996 Bay Networks Inc All rights reserved Printed in the USA August 1996 The information in this document is subject to change without notice The statements configurations technical data and recommendations in this document are believed to be accurate and reliable but are presented without express or implied warranty Users must take full responsibility for their applications of any products specified in this document The information in this document is proprietary to Bay Networks Inc The software described in this document is furnished under a license agreement and may only be used in accordance with the terms of that license A summary of the Software License is included in this document Restricted Rights Legend Use duplication or disclosure by the United States Government is subject to restrictions as set forth in subparagraph c 1 ii of the Rights in Technical Data and Computer Software clause at DFARS 252 227 7013 Notice for All Other Executive Agencies Notwithstanding any other license agreement that may pertain to or accompany the delivery of this computer software the rights of the United States Government regarding its use reproductio
4. enabling on the router 2 2 Level 1 routing 1 4 Level 2 routing 1 4 listening process for 1 6 overview of 1 1 routing process for 1 5 to 1 9 update process for 1 5 DECnet 4 to 5 Transition Enable parameter 3 32 DECnet architectural constant 1 10 114050 Rev A Index 1 Configuring DECnet Services DECnet circuit costs assigning for interface 3 13 for router 3 7 3 8 for static route 3 21 calculating the least cost path 1 6 1 7 DECnet Hello messages disabling 1 16 3 17 purpose of 1 6 DECnet hops maximum number of 3 8 DECnet IV to V Transition 1 10 to 1 14 advertising routes for 1 13 configuring 3 30 creating 3 31 deleting 3 33 editing 3 31 parameter descriptions 3 31 transition strategy for 1 13 to 1 14 translating data packets for 1 11 to 1 14 translating DECnet network layer addresses for 1 10 to 1 11 DECnet Phase IV data packet 1 10 1 11 network organization for 1 1 parameters defaults for A 1 Node ID 2 3 DECnet Phase V 1 3 1 14 address for 1 4 1 10 advertising routes for 1 13 CLNP packet 1 10 1 11 link state packets 1 13 network organization for 1 3 DECnet services 1 4 to 1 9 defaults for DECnet parameters A 1 to A 3 deleting DECnet from the router 3 34 DECnet IV to V Transition 3 33 static adjacencies 3 30 static routes 3 23 designated router 1 9 specifying 3 14 Destination Area ID parameter 3 21 Destination MAC Address parameter 3 28
5. 10 100 DEC0002A Figure 1 2 Bay Networks Router with Multiple DECnet Addresses DECnet Phase V Organization DECnet Phase V is an implementation of the Open Systems Interconnection OSI Connectionless mode Network Layer protocols These protocols include Connectionless Network Protocol CLNP End System to Intermediate System ES IS protocol and Intermediate System to Intermediate System IS IS protocol 114050 Rev A Configuring DECnet Services Each system in a DECnet Phase V network is assigned a Network Service Access Point NSAP address Each DECnet Phase V NSAP address must be globally unique and can be from 10 to 20 bytes in length However a local DECnet network does not need a unique address For more information about Phase V network organization and addressing refer to Chapter 1 of Configuring OSI Services Routing DECnet Packets across the Network The Bay Networks routing software for DECnet services uses a datagram service to route packets through the DECnet network Routing within an area is called Level 1 or intra area routing routing between areas is called Level 2 or interarea routing You can configure the Bay Networks routing software to perform either Level and Level 2 routing or to perform Level 1 Only routing e Use Level 1 and Level 2 routing to maintain paths to all areas within a DECnet network e Use Level 1 Only routing to maintain paths to only those systems within the router
6. Level 1 and Level 2 Level 1 and Level 2 Level 1 Only Determines whether the circuit performs both Level 1 and Level 2 routing or Level 1 Only routing If you configured the router as Level 1 Only the router automatically configures all circuits as Level 1 Only and this parameter does not appear in the DECnet IV Interface List window If at a later time you change the router configuration to perform both Level 1 and Level 2 routing all circuits will remain configured as Level 1 Only until you change them Select Level 1 and Level 2 to maintain paths to all areas within a DECnet network Select Level 1 Only to maintain paths to only those systems within the router s local area 1 3 6 1 4 1 1 18 3 5 2 2 1 41 114050 Rev A Configuring DECnet Services Parameter Default Range Function Instructions MIB Object ID Area ID None 1 to 63 Specifies a DECnet Area ID for this circuit The Area ID is the first 6 bits of a DECnet node address You specify the Area ID on a circuit by circuit basis because a single Bay Networks router can have individual circuits residing in different areas Enter the Area ID assigned to this circuit 1 3 6 1 4 1 18 3 5 2 2 1 4 Note If you set the DECnet global parameter Route Level to Level 1 Only the Area ID you specify in the Edit DECnet Global Parameters window overrides this parameter setting Parameter Default Range Function Instructions MIB Objec
7. either explicitly or implicitly except by acceptance of an order for either Software or for a Bay Networks product Equipment that is packaged with Software Each such license is subject to the following restrictions 1 Upon delivery of the Software Bay Networks grants to licensee a personal nontransferable nonexclusive license to use the Software with the Equipment with which or for which it was originally acquired including use at any of licensee s facilities to which the Equipment may be transferred for the useful life of the Equipment unless earlier terminated by default or cancellation Use of the Software shall be limited to such Equipment and to such facility Software which is licensed for use on hardware not offered by Bay Networks is not subject to restricted use on any Equipment however unless otherwise specified on the Documentation each licensed copy of such Software may only be installed on one hardware item at any time Licensee may use the Software with backup Equipment only if the Equipment with which or for which it was acquired is inoperative Licensee may make a single copy of the Software but not firmware for safekeeping archives or backup purposes Licensee may modify Software but not firmware or combine it with other software subject to the provision that those portions of the resulting software which incorporate Software are subject to the restrictions of this license Licensee shall not make the re
8. xx System ID 1 10 W wide area network 1 14 World Wide Web Bay Networks home page on Xu Index 4 114050 Rev A
9. 31 Editing the DECnet IV to V Transition Parameters eeeeeeeeeseee 3 33 vi 114050 Rev A Deleting the DEGnet IV to V TAMSIN eee eter rrr enr rtr 3 33 Deleting DEC met from the Router uuu ee otis pacta nia tota REDE EL ieee Ent cate a Mu Ete 3 34 Appendix A DECnet Parameter Default Settings Index 114050 Rev A vii Figure 1 1 Figure 1 2 Figure 1 3 Figure 1 4 Figure 1 5 Figure 1 6 Figure 1 7 Figure 1 8 Figure 1 9 Figure 2 1 Figure 3 1 Figure 3 2 Figure 3 3 Figure 3 4 Figure 3 5 Figure 3 6 Figure 3 7 Figure 3 8 Figure 3 9 Figure 3 10 114050 Rev A Figures DECnet Phase IV Address ausa ier FCR re UR ACH QU Ex RS 1 2 Bay Networks Router with Multiple DECnet Addresses 1 3 Calculating ihe Least Cost Pali uui ier esset venbxs c vie nb etas Eanctvpen vae bebe nb 1 6 Least Cost Path to a Destination ssssseenneenne 1 8 DECnet Phase IV to Phase V Address Mapping ssss 1 11 Translation of a DECnet Phase IV Data Packet to a Phase V CLAP Rachel iisasser roqaikkvbzi ueri Qd aca ede 1 12 Static Routes Defined for Routers Residing in Different Areas 1 15 Static Adjacencies Defined for Routers Residing in the Same Area 1 17 Static Adjacencies Defined for Routers Residing i Dieren ACOS NND EE ID 1 18 DEGnet IV Configuration VngdONW iuc annaa aiaiai 2 2 Gonfiguranon Manager Window isi
10. Destination Node ID parameter 3 21 disabling Hello messages 1 16 3 16 3 17 E editing DECnet global parameters 3 3 DECnet interface parameters 3 9 DECnet IV to V Transition parameters 3 31 static adjacency parameters 3 29 static route parameters 3 19 editing parameters 3 1 Enable parameter 3 11 enabling DECnet on an interface 2 2 End Nodes MAC parameter 3 15 End Routers MAC parameter 3 15 F Frame Relay multicasting address 3 15 G getting help from a Bay Networks Technical Response Center xxi from the Support Source CD xx through CompuServe xx through Customer Service FTP xix through InfoFACTS service xxi through World Wide Web xix H Hello messages disabling 1 16 3 16 3 17 purpose of 1 6 Hello Timer parameter 3 13 Index 2 114050 Rev A high order value 1 10 hops maximum number of 1 7 3 7 3 8 l InfoFACTS service xxi interarea routing 1 4 intra area routing 1 4 L least cost path calculating 1 6 Level 1 and Level 2 routing configuring for interface 3 11 for router 3 4 defined 1 4 Level 1 Only Area parameter 3 5 Level 1 Only routing configuring area for router 3 5 for interface 3 11 for router 3 4 defined 1 4 Level 1 topology update packets 1 13 1 14 Level 1 Topology Update parameter 3 17 Level 2 backbone 1 14 Level 2 topology update packets 1 14 Level 2 Topology Update parameter 3 17 link state packets 1 13 Max Area param
11. Guide TM router software for DECnet services you need to read this guide It explains How DECnet services work Chapter 1 How you configure a DECnet interface Chapter 2 How to edit DECnet global and interface parameters and configure static routes static adjacencies and the DECnet IV to V Transition Chapter 3 Before You Begin Before using this guide you must complete the following procedures For a new router Install the router refer to the installation manual that came with your router Connect the router to the network and create a pilot configuration file refer to Quick Starting Routers and BNX Platforms Connecting BayStack AN and ANH Systems to a Network or Connecting ASN Routers and BNX Platforms to a Network Create and save a configuration file that has at least one DECnet interface refer to Configuring Routers for instructions Retrieve the configuration file in local remote or dynamic mode refer to Configuring Routers for instructions Make sure that you are running the latest version of Bay Networks Site Manager and router software For instructions refer to Upgrading Routers from Version 7 10 xx to Version 11 0 114050 Rev A xiii Configuring DECnet Services Conventions bold text italic text quotation marks Screen text separator gt vertical line I Indicates text that you need to enter command names and buttons in menu paths Example Enter
12. in the next section as a guide 3 Click on OK to save your changes and exit the window Site Manager returns you to the Configuration Manager window 114050 Rev A 3 3 Configuring DECnet Services DECnet Global Parameter Descriptions Use the following descriptions as a guide when you configure the parameters in the Edit DECnet Global Parameters window refer to Figure 3 2 Parameter Default Options Function Instructions MIB Object ID Parameter Default Options Function Instructions MIB Object ID Route Enable Enable Enable Disable Enables or disables DECnet routing on the entire Bay Networks router Set to Disable only if you want to globally disable DECnet routing on all interfaces where it is configured Otherwise use the default setting 1 3 6 1 4 1 18 3 5 2 1 2 Route Level Level 1 and Level 2 Level 1 and Level 2 Level 1 Only Determines whether the router performs both Level 1 and Level 2 routing or Level 1 Only routing Select Level 1 and Level 2 routing to maintain paths to all areas within a DECnet network Select Level 1 Only to maintain paths to only those systems within the router s local area If you select Level 1 Only routing you can only configure router interfaces as Level 1 Only 1 3 6 1 4 1 18 3 5 2 1 16 3 4 114050 Rev A Parameter Default Range Function Instructions MIB Object ID Parameter Default Range Function In
13. value among all routers on the circuit 1 3 6 1 4 1 18 3 5 2 2 1 13 3 14 114050 Rev A Parameter Default Options Function Instructions MIB Object ID Parameter Default Options Function Instructions MIB Object ID Editing DECnet Parameters End Nodes MAC None Frame Relay multicasting address SMDS group address Assigns the All Endnodes multicast MAC address value to this circuit for use over Frame Relay and SMDS WAN connections The multicast MAC address value you specify here determines the destination address for DECnet end node broadcast traffic across the Frame Relay or SMDS cloud This parameter is valid only if this circuit is a Frame Relay or SMDS circuit Enter the multicasting address Frame Relay circuits or group address SMDS circuits that you obtain from your service provider If you do not specify a value for this parameter broadcast traffic will be sent to all virtual circuits configured on the interface 1 3 6 1 4 1 18 3 5 2 2 1 31 End Routers MAC None Frame Relay multicasting address SMDS group address Assigns the AllRouters multicast MAC address value to this circuit for use over Frame Relay and SMDS WAN connections This allows you to specify a destination address for DECnet Level 1 broadcast traffic across the Frame Relay or SMDS cloud This parameter is valid only if this circuit is a Frame Relay or SMDS circuit Enter the multicasting address Frame Relay circ
14. window appears Figure 3 9 DECnet Static Adjacency CONFIGURATION Cancel OK Adjacent Node ID Figure 3 9 DECnet Static Adjacency Configuration Window 5 Enter an adjacent Area ID and an adjacent Node ID using the descriptions in the next section as a guide 3 26 114050 Rev A Editing DECnet Parameters Click on OK to exit the window and save your changes The DECnet Static Adjacent Hosts List window reappears The static adjacency you configured is displayed in the list Repeat Steps 4 through 6 to add additional static adjacencies DECnet Static Adjacency Parameter Descriptions Use the following descriptions as a guide when you configure the parameters in the DECnet Static Adjacent Hosts List window refer to Figure 3 8 and the DECnet Static Adjacency Configuration window refer to Figure 3 9 Parameter Default Options Function Instructions MIB Object ID Parameter Default Options Function Instructions MIB Object ID Adjacency Enable Enable Enable Disable Specifies the state of the static adjacency record in the DECnet router s routing tables Select Disable to make the static adjacency record inactive in the DECnet routing table the router will not consider this static adjacency Select Enable to make this static adjacency record active again This parameter defaults to Enable when you click on Add in the DECnet Static Adjacent Hosts List window 1 3
15. you want to edit these default values refer to Chapter 3 Editing DECnet Parameters Note Although you can accept the default values for most DECnet parameters we recommend that you try to tune your DECnet configuration to closely match your actual configuration Typically when you customize the parameters DECnet uses less local memory enhancing DECnet performance For each DECnet parameter this guide provides the default setting valid parameter options the parameter function instructions for setting the parameter and the Management Information Base MIB object ID 114050 Rev A 2 1 Configuring DECnet Services The Technician Interface lets you modify parameters by issuing set and commit commands that specify the MIB object ID This process is equivalent to modifying parameters using Site Manager For more information about using the Technician Interface to access the MIB refer to Using Technician Interface Software Caution The Technician Interface does not verify that the value you enter for a parameter is valid Entering an invalid value can corrupt your configuration Enabling DECnet Phase IV on an Interface To enable DECnet Phase IV on an interface 1 Select DECnet from the Select Protocols menu The Select Protocols menu appears after you either select a link or net module connector or finish configuring a WAN circuit The DECnet IV Configuration window appears Figure 2 1 DECNET
16. 6 1 4 1 18 3 5 2 7 2 Adjacency Type Area Area Routing IV Non Routing IV Specifies whether the static adjacency is another router or an end node Select Area if the static adjacency is a Level 2 router select Routing IV if the static adjacency is a Level 1 router or select Non Routing IV if the static adjacency is an end node 1 3 6 1 4 1 18 3 5 2 7 7 114050 Rev A 3 27 Configuring DECnet Services Parameter Default Range Function Instructions MIB Object ID Parameter Default Options Function Instructions MIB Object ID Parameter Default Range Function Instructions MIB Object ID Adjacency Priority None 0 to 127 If the static adjacency is another router this parameter specifies the router s priority for becoming the designated router on the network The designated router performs additional services for other nodes attached to the circuit All these nodes know the address of the designated router If you do not choose a designated router or if you assign two or more routers the same priority the router with the highest Node ID becomes the designated router by default Enter a router priority value from 0 to 127 If you want this node to be the designated router on this circuit assign it the highest priority value among all routers on the circuit 1 3 6 1 4 1 18 3 5 2 7 8 Destination MAC Address None Any valid MAC address Specifies the 48 bit Ethernet addr
17. Cnet IV to V Transition Parameters Parameter Default DECnet 4 to 5 Transition Enable Enable Area Address Alias 1 hex None 114050 Rev A A 3 A accessing DECnet parameters 3 2 adding static adjacency 3 24 to 3 27 static route 3 18 Adjacency Enable parameter 3 27 Adjacency Priority parameter 3 28 Adjacency Type parameter 3 27 adjacency See static adjacency Adjacent Area ID parameter 3 28 Adjacent Node ID parameter 3 29 Area Address Alias 1 parameter 3 32 Area ID and DECnet Phase V address mapping 1 10 defined 1 2 specifying for an interface 2 3 3 12 for static adjacency 3 27 for static route 3 21 globally 3 5 area ID 3 5 Area ID parameter 2 3 3 12 Area Max Cost parameter 3 8 Area Max Hops parameter 3 8 Area Routers MAC parameter 3 16 Bay Networks CompuServe forum xx Customer Service FTP xix home page on World Wide Web xix InfoFACTS service xxi Index Bay Networks continued publications ordering xv support programs xviii Support Source CD xx Technical Response Center xvii xxi technical support xvii Broadcast Route Timer parameter 3 5 C CompusServe Bay Networks forum on xx Connectionless Network Protocol CLNP packet DECnet phase V 1 10 Cost parameter 3 13 Customer Service FTP xix customer support See getting help D DECnet configuration parameters See individual parameter names defaults A 1 deleting from the router 3 34
18. ECnet Static Routes List window displays the new static route you defined 4 Repeat Steps 1 through 3 to add more static routes DECnet Static Route Parameter Descriptions Use the following descriptions as a guide when you configure the parameters in the DECnet Static Routes List and DECnet Static Routes Configuration windows refer to Figure 3 4 and Figure 3 5 114050 Rev A 3 19 Configuring DECnet Services Parameter Default Options Function Instructions MIB Object ID Parameter Default Options Function Instructions MIB Object ID Static Route Enable Enable Enable Disable Specifies the state active or inactive of the static route record in the DECnet routing tables Select Disable to make the static route record inactive in the DECnet routing table the DECnet router will not consider this static route Select Enable to make the static route record active again in the DECnet routing table If you did not first add a static route no default is displayed and you cannot configure this parameter When you add a static route this parameter defaults to Enable 1 3 6 1 4 1 18 3 5 2 8 1 2 Route Type Level 2 Level 1 Level 2 Specifies the type of traffic that is routed over this interface Level 1 routing is for routing data within an area Level 2 routing is for routing data between areas Select the traffic type for this static route If you did not first add a static rou
19. Editing DECnet Parameters Once you enable a DECnet interface you can use Site Manager to e Edit DECnet parameters e Add edit or delete a static route a static adjacency or the DECnet IV to V Transition e Delete DECnet globally from the Bay Networks router The instructions in this chapter assume that you have already configured at least one DECnet interface If you have not yet configured a DECnet interface or if you want to add additional DECnet interfaces refer to Chapter 2 Enabling DECnet Services Note You must configure both DECnet Phase IV and OSI on each network interface participating in a DECnet IV to V Transition If you have a mixed Phase IV and Phase V network Configuring OSI Services for details on configuring OSI For instructions on configuring DECnet filters see Configuring Routers For each DECnet parameter this guide provides the default setting valid parameter options the parameter function instructions for setting the parameter and the Management Information Base MIB object ID 114050 Rev A 3 1 Configuring DECnet Services The Technician Interface lets you modify parameters by issuing set and commit commands that specify the MIB object ID This process is equivalent to modifying parameters using Site Manager For more information about using the Technician Interface refer to Using Technician Interface Software Caution The Technician Interface does not verify that the value you
20. Function Instructions MIB Object ID Parameter Default Range Function Instructions MIB Object ID Next Hop Area ID None 1 to 63 Specifies the DECnet Area ID of the intermediate system that is the next hop on the path to the destination end system Enter the Area ID assigned to the next hop intermediate system 1 3 6 1 4 1 18 3 5 2 8 1 7 Next Hop Node ID None 1 to 1023 Specifies the DECnet Node ID of the intermediate system that is the next hop on the path to the destination end system Enter the Node ID assigned to the next hop intermediate system 1 3 6 1 4 1 18 3 5 2 8 1 8 3 22 114050 Rev A Editing DECnet Parameters Editing Static Route Parameters To edit a static route 1 Select the static route you want to edit from the list in the DECnet Static Routes List window refer to Figure 3 4 Edit the static route parameters using the descriptions in the previous section as a guide Click on Apply to implement your changes Repeat Steps 1 through 3 to edit additional static routes Click on Done to exit the window Deleting a Static Route To delete a static route 1 Select the static route you want to delete from the list in the DECnet Static Routes List window refer to Figure 3 4 Click on Delete The DECnet Static Routes List window no longer displays the static route Repeat Steps 1 and 2 to delete additional static routes Click on Done to exit the wind
21. IV CONFIGURATION Cancel Values Help ml Figure 2 1 DECnet IV Configuration Window 2 Configure the parameters using the descriptions that follow as a guide 3 When you finish configuring the parameters click on OK To edit the default values for DECnet parameters refer to Chapter 3 Editing DECnet Parameters for instructions 2 2 114050 Rev A Parameter Default Range Function Instructions MIB Object ID Parameter Default Range Function Instructions MIB Object ID Enabling DECnet Services Enable default DECnet Phase IV services To do this click on OK Edit the default values To do this click on Details Refer to Chapter 3 Editing DECnet Parameters for instructions Area ID None 1 to 63 Specifies a unique DECnet Phase IV Area ID for this circuit The Area ID is the first 6 bits of a DECnet Phase IV node address You specify the Area ID on a circuit by circuit basis that is a single router can have individual circuits residing in different areas Enter the Area ID assigned to this circuit 1 3 6 1 4 1 18 3 5 2 3 1 1 Node ID None 1 to 1023 Specifies a unique DECnet Node ID for this circuit The Node ID is the last 10 bits of a DECnet node address Note that individual circuits on a Bay Networks router may have different Node IDs Enter the Node ID assigned to this circuit 1 3 6 1 4 1 18 3 5 2 3 1 2 114050 Rev A 2 3 Chapter 3
22. Networks Publications To purchase additional copies of this document or other Bay Networks publications order by part number from the Bay Networks Press at the following telephone or fax numbers Telephone U S Canada 1 888 4BAYPRESS Telephone International 1 510 490 4752 Fax 1 510 498 2609 You can also use these numbers to request a free catalog of Bay Networks Press product publications 114050 Rev A XV Technical Support and Online Services To ensure comprehensive network support to our customers and partners worldwide Bay Networks Customer Service has Technical Response Centers in key locations around the globe e Billerica Massachusetts e Santa Clara California e Sydney Australia e Tokyo Japan e Valbonne France The Technical Response Centers are connected via a redundant Frame Relay Network to a Common Problem Resolution system enabling them to transmit and share information and to provide live around the clock support 365 days a year Bay Networks Information Services complement the Bay Networks Service program portfolio by giving customers and partners access to the most current technical and support information through a choice of access retrieval means These include the World Wide Web CompuServe Support Source CD Customer Support FTP and InfoFACTS document fax service 114050 Rev A xvii Configuring DECnet Services Bay Networks Customer Service If you purchased your Bay Netwo
23. acent Phase V end node addresses Routers running DECnet Phase IV or DECnet Phase V can forward packets without translation when routing their native protocols Translating DECnet Addresses With the DECnet IV to V Transition feature enabled a router can always translate a DECnet Phase IV network layer address to a Phase V NSAP address However because a Phase V address is larger than a Phase IV address a router can translate a Phase V address only if it is Phase IV compatible A Phase V address is Phase IV compatible if The leading bytes of the Phase V address match the configured local Phase IV Prefix The local Phase IV Prefix defines the addresses eligible for translation within a local Phase IV routing domain The high order value of the Phase V System ID is AA000400 which is the DECnet architectural constant The Area component of the Phase IV address in the Phase V System ID is the same as the Area field of the Phase V Area Address Figure 1 5 shows how a router maps a DECnet Phase V address so that it is Phase IV compatible 114050 Rev A DECnet Overview DECnet IV Address Area Node ID D DECnet IV Address byte swapped Local Phase IV High Order Prefix AA000400 lt Area Address System ID DECnet V Address DECO0005A Figure 1 5 DECnet Phase IV to Phase V Address Mapping The local Phase IV Prefix and Area fields of the Phase IV compatible
24. address make up the Area Address The Area Address identifies the area in a DECnet network where a node resides The High Order and DECnet IV Address fields of the Phase IV compatible address make up the System ID The System ID identifies a node within an area Translating Data Packets With the DECnet IV to V Transition feature enabled a router can always translate a Phase IV data packet to a Phase V CLNP packet However there are restrictions when a router translates a Phase V packet to a Phase IV packet e The packet cannot be fragmented e The packet must fit the Phase IV maximum transmission unit MTU size of 1498 bytes 114050 Rev A 141 Configuring DECnet Services Phase IV to Phase V A router running DECnet Phase IV always attempts to forward a Phase IV data packet by looking up the destination address in the DECnet Phase IV forwarding tables If you enable the DECnet IV to V Transition feature the router performs the following actions 1 Ifthe router does not find the destination address in the Phase IV forwarding table the router maps the Phase IV address to a Phase V address and looks up its destination in the Phase V forwarding table 2 If the router finds the destination address in the Phase V forwarding table the router running Phase V translates the source address and Phase IV data packet header to a Phase V CLNP packet header 3 Ifthe router does not find the destination address in the Phase V forw
25. adesenaiuamplauelanialaades xviii Bay Networks Information Services eeu eese c inaee tnnt hae ta c aad SRL teen cena xix APOC WIN WRU a2 anc tM xix ppc VE UT deer T m xix APU UN TIBI assistit T Usadas anions blat tabu Grade sea dandi scien i xx Me lii e balsa T XX ne iiem p TT xxi Howto Get Peli sites terat op adv ie E xxi Chapter 1 DECnet Overview Bii Ee SPA PN S 1 1 DEC ret Phase D OUAIS BQH nesnesine s PEEL Letras 1 1 BeGnet Phase Y Crane AON cadoscotidu ce pe ci e a entra CER d paa fads 1 3 Routing DECnet Packets across the Netwprk sirrane aaia 1 4 The Rouling PIGS aeina E ERa 1 5 Upa PORES S ainan Maat seteahuad ose dass a ia Ed dba dodo du 1 5 WE Tm EE OS 1 6 SIE ea PEODBSR ate noi Eee nb Su ese Ud deo pc RC ido 1 6 recipe is i PME TEE UE 1 8 lo 3NcrelpuuU m 1 9 114050 Rev A V B ZERO EUR BETTE TTE 1 10 Translating DEOnel JOOIGBBES 10a ide dde cene c adanb ibant idu dp dde ease a RE boda 1 10 chri lpeRb n as Pt IT 1 11 gis c Wile PASO V MEE EL aaa nents edad 1 12 Phase V to Phase IV m em eT 1 12 Advertise ROTES ui isioineisti m td iizaiastsacniddaurecnadconsauasacceteadsitaateddeninent Madatoctnannueds 1 13 DEGnet IV to V Basie Transition SITategy ss ecdpenckux igne p acia Fan te kein aiaiai 1 13 voiced e t LE 1 14 Sip AC scent OUBDDOR edet a doct d Prieto dat EE d a RU UE E M tee 1 16 ipd o A IURE ERE 1 19 Chapter 2 Enabling DECn
26. arding table the router running Phase V returns the packet to the router running Phase IV for error processing z Z IV Host IV and V IV only IV and V V Host Data packet Phase IV Phase IV router Phase IV router Phase V host is sent to router routes routes packet gives packet to gets Phase V Phase V packet Phase V router packet host for translation DEC0006A Figure 1 6 Translation of a DECnet Phase IV Data Packet to a Phase V CLNP Packet Phase V to Phase IV In the same way a router running DECnet Phase V always attempts to forward a Phase V CLNP packet by looking up the destination address in the DECnet Phase V forwarding tables If you enable the DECnet IV to V Transition feature and the router does not find the destination address the router performs the following actions 1 If the address is Phase IV compatible the router maps the Phase V address to a Phase IV address and looks up its destination in the Phase IV forwarding table 1 12 114050 Rev A 2 DECnet Overview If the router finds the destination address in the Phase IV forwarding table the DECnet router running Phase IV translates the source address and Phase V CLNP packet header to a Phase IV data packet header If the router does not find the destination address in the Phase IV forwarding table the router running Phase IV returns the packet to the router running Phase V
27. ath cost is the sum of the individual circuit costs between this router and the destination node The router declares a destination node unreachable if the least cost path to the destination node exceeds this number Determine the maximum path cost between this router and any node in the area and enter it here 1 3 6 1 4 1 18 3 5 2 1 10 Max Hops 30 1 to 30 Specifies the maximum path length in hops between this router and any other destination node in the local area A hop is the logical distance between two nodes Calculate the maximum path length in hops from this router to any other destination node in the area Double this number and enter it here 1 3 6 1 4 1 18 3 5 2 1 11 114050 Rev A 3 7 Configuring DECnet Services Parameter Default Range Function Instructions MIB Object ID Parameter Default Range Function Instructions MIB Object ID Parameter Default Range Function Instructions MIB Object ID Max Visits 63 to 63 Detects routing loops by enabling the packet lifetime control which limits the number of times a packet can pass through a router If the router receives a packet that 1 is not destined for the router and 2 whose Max Visits value is exceeded the router discards the packet because it has traversed too many nodes Determine the maximum path length in hops between the two nodes farthest apart on the network Enter a number that is at least as
28. cencies set this value to Disable Otherwise accept the default setting 1 3 6 1 4 1 18 3 5 2 2 1 34 3 16 114050 Rev A Parameter Default Options Function Instructions MIB Object ID Parameter Default Options Function Instructions MIB Object ID Parameter Default Options Function Instructions MIB Object ID Editing DECnet Parameters Router Hello Enable Enable Disable When disabled keeps the DECnet router from sending Hello packets to other routers Use this parameter with a static adjacency to limit the amount of traffic sent over a WAN connection To limit the amount of traffic traversing the WAN connection between static adjacencies set this value to Disable Otherwise accept the default setting 1 3 6 1 4 1 18 3 5 2 2 1 35 Level 1 Topology Update Enable Enable Disable When disabled keeps the DECnet router from sending Level 1 topology update packets to other routers Use this parameter with a static adjacency to limit the amount of traffic sent over a WAN connection To limit the amount of traffic traversing the WAN connection between static adjacencies set this value to Disable Otherwise accept the default setting 1 3 6 1 4 1 18 3 5 2 2 1 36 Level 2 Topology Update Enable Enable Disable When disabled keeps the DECnet router from sending Level 2 topology update packets to other routers Use this parameter with a static adjacency to limit t
29. djacency Support The Bay Networks routing software for DECnet services creates and maintains its adjacency database by periodically broadcasting Hello messages to its neighbors In DECnet terminology an adjacency is a directly connected circuit neighbor pair toward which packets are forwarded by the router a neighbor is an adjacent host The neighbor can be a Level 1 or Level 2 router or an end node The Bay Networks routing software for DECnet services allows you to configure static adjacencies for the Bay Networks router Static adjacencies specify the DECnet and data link layer address of the neighbor and the circuit used to reach the neighbor Unless a static adjacency is explicitly deleted from the system it remains in the router s adjacency database even if the router never receives Hello messages from the adjacent host Thus by configuring static adjacencies and disabling Hello message generation you reduce Hello message traffic between the router and its neighbors Note Static adjacencies are recommended over wide area network lines to help reduce overhead traffic Static adjacencies are not recommended over local area network connections because if a remote node is removed from the network the local router does not recognize the topology change For example DECnet Routers A and B reside in the same area Figure 1 8 1 16 114050 Rev A DECnet Overview With static adjacencies defined you can turn o
30. documentation from across the Bay Networks product suite including switching products from our Centillion and Xylogics business units Central management and sponsorship of this FTP site lets you quickly locate information on any of your Bay Networks products 114050 Rev A xix Configuring DECnet Services Support Source CD This CD ROM sent quarterly to all contracted customers is a complete Bay Networks Service troubleshooting knowledge database with an intelligent text search engine The Support Source CD contains extracts from our problem tracking database information from the Bay Networks Forum on CompuServe comprehensive technical documentation such as Customer Support Bulletins Release Notes software patches and fixes and complete information on all Bay Networks Service programs You can run a single version on Macintosh Windows 3 1 Windows 95 Windows NT DOS or UNIX computing platforms A Web links feature enables you to go directly from the CD to various Bay Networks Web pages CompuServe For assistance with noncritical network support issues Bay Networks Information Services maintain an active forum on CompusServe a global bulletin board system This forum provides file services technology conferences and a message section to get assistance from other users The message section is monitored by Bay Networks engineers who provide assistance wherever possible Customers and resellers holding Bay Ne
31. dress alias to the router The alias is a different area address that is assigned to the same router For the DECnet IV to V Transition feature the area address alias defines the Phase IV prefix and Phase IV area fields of the Phase IV compatible address Refer to Translating DECnet Addresses in Chapter 1 Enter the area address alias in hexadecimal format For the DECnet IV to V Transition feature enter the Phase IV prefix from 1 to 9 bytes followed by 2 bytes of the Phase IV area address 1 3 6 1 4 1 18 3 5 6 1 17 Note Refer to Chapter 2 of Configuring OSI Services for more information about the area address alias 3 32 114050 Rev A Editing DECnet Parameters Editing the DECnet IV to V Transition Parameters To edit the DECnet IV to V Transition parameters begin at the Configuration Manager window refer to Figure 3 1 and proceed as follows 1 Select Protocols OSI Edit DECnet IV to V Transition The Edit DECnet IV to V Transition Parameters window appears This window contains the same fields as the Create DECnet IV to V Transition Parameters window refer to Figure 3 10 2 Edit the parameters using the descriptions in the previous section as a guide 3 Click on OK to implement your changes and exit the window Deleting the DECnet IV to V Transition To delete the DECnet IV to V Transition feature begin at the Configuration Manager window refer to Figure 3 1 and proceed as fol
32. e IV Global Parameters Parameter Default Route Enable Enable Route Level Level 1 Level 2 Level 1 Only Area 1 Broadcast Route Timer 180s Route Max Addr 1023 Max Broadcast Non Routers 64 Max Broadcast Routers 32 Max Circuits 1024 Max Cost 1022 Max Hops 30 Max Visits 63 Area Max Cost 1022 Area Max Hops 30 Max Area 63 114050 Rev A A 1 Configuring DECnet Services Table A 2 DECnet Phase IV Interface Parameters Parameter Default Enable Enable Route Level Level 1 Level 2 Area ID None Node ID None Cost 10 Hello Timer 15s Max Routers 33 Router Priority 64 End Nodes MAC None End Routers MAC None Area Routers MAC None Node Hello Enable Router Hello Enable Level 1 Topology Update Enable Level 2 Topology Update Enable Table A 3 DECnet Static Route Parameters Parameter Default Static Route Enable Enable Route Type Level 2 Route Cost 10 Destination Area ID None Destination Node ID None Next Hop Area ID None Next Hop Node ID None 114050 Rev A DECnet Parameter Default Settings Table A 4 DECnet Static Adjacency Parameters Parameter Default Adjacency Enable Enable Adjacency Type Area Adjacency Priority None Destination MAC Address None Adjacent Area ID None Adjacent Node ID None Table A 5 DE
33. e the DECnet IV to V Transition 1 Inthe Configuration Manager window refer to Figure 3 1 select Protocols OSI Create DECnet IV to V Transition The Create DECnet IV to V Transition Parameters window appears Figure 3 10 Create DECnet IV to V Transition Parameters Bocce m i Help DECnet 4 to 5 Transition Enable ENABLE Area Address Alias 1 hex Figure 3 10 Create DECnet IV to V Transition Parameters Window 2 Edit the parameters using the following descriptions as a guide 3 Click on OK to save your changes and exit the window DECnet IV to V Transition Parameter Descriptions Use the following descriptions as a guide when you configure the parameters in the Create DECnet IV to V Transition Parameters window refer to Figure 3 10 114050 Rev A 3 31 Configuring DECnet Services Parameter Default Options Function Instructions MIB Object ID Parameter Default Options Function Instructions MIB Object ID DECnet 4 to 5 Transition Enable Enable Enable Disable Enables or disables the DECnet IV to V Transition To enable the transition select Enable To turn this feature off select Disable After you enable the DECnet IV to V Transition feature if you select Protocols OSI you will see that the edit and delete options are available 1 3 6 1 4 1 18 3 5 6 12 2 Area Address Alias 1 hex None Any valid area address Assigns the first area ad
34. enter for a parameter is valid Entering an invalid value can corrupt your configuration Accessing DECnet Parameters You access all DECnet parameters from the Configuration Manager window Figure 3 1 See Configuring Routers for instructions on accessing this window E TET Configuration Mode local SNMP Agent LOCAL FILE File Name extra smgr dnet cfg Model Link Node LN MIB Version x9 00 Unused Description Connectors S405 Dual Ethernet EEEE eee E _ eel aaa ee al NETTE me CONSOLE eee r Figure 3 1 Configuration Manager Window To customize the router software for DECnet services edit any of these DECnet parameters e Global Interface e Static route e Static adjacency e DECnet IV to V Transition 3 2 114050 Rev A Editing DECnet Parameters Editing DECnet Global Parameters To edit the DECnet global parameters begin at the Configuration Manager window refer to Figure 3 1 and proceed as follows 1 Select Protocols gt DECnet IV gt Global The Edit DECnet Global Parameters window appears Figure 3 2 Edit Decnet Global Parameters pese OK Values Help Route Enable ENABLE Route Level EVEL1 LEVEL2 Level1 Only Area Broadcast Route Timer Route Max Addr Max Broadcast Non Routers Max Broadcast Routers Max Circuits Max Cost Max Hops Figure 3 2 Edit DECnet Global Parameters Window 2 Edit the parameters using the descriptions
35. ess of the static adjacency Enter the MAC address as a 12 digit hexadecimal number 1 3 6 1 4 1 18 3 5 2 7 9 Adjacent Area ID None 1 to 63 Specifies the Area ID portion of the static adjacency s DECnet address Enter the Area ID assigned to the static adjacency 1 3 6 1 4 1 18 3 5 2 7 1 3 3 28 114050 Rev A Parameter Default Range Function Instructions MIB Object ID Editing DECnet Parameters Adjacent Node ID None 1 to 1023 Specifies the Node ID portion of the static adjacency s DECnet address Enter the Node ID assigned to the static adjacency 1 3 6 1 4 1 18 3 5 2 7 1 4 Editing Static Adjacency Parameters To edit the parameters for an existing static adjacency 1 9 Ln wm omn R Select Circuits Edit Circuits in the Configuration Manager window refer to Figure 3 1 The Circuit List window appears refer to Figure 3 6 listing the circuits configured on the router Select a DECnet circuit from this list and click on Edit The Circuit Definition window for the circuit appears refer to Figure 3 7 Select Protocols Edit DECnet IV Static Adjacencies in the Circuit Definition window The DECnet Static Adjacent Hosts List window appears refer to Figure 3 8 Click on the static adjacent host whose parameters you want to modify Edit the parameters you want to change Click on Apply to implement your changes Repeat Steps 4 through 6 to edit additional static adjacenc
36. et Services Enabling BECnet Phase IV on an Inferfage duas cdl aniani ducere gua 2 2 Chapter 3 Editing DECnet Parameters Accessing DEGNE Parmele 2n d eer ra ad eed RC dE DG b pt eR taf cadis 3 2 editing Debbget Global PSERIKBIBI siiis ioci uet tecit cade oed ta dta ec ERE eSEE Ra aSa 3 3 DEC et Global Parameter DoSOH DIOS 12 iicet trennen tane betku tata Lopn edat nocte basin 3 4 Editing DEC net Interface Parameters acce sas rase ac adactus rade nb andre ice gud 3 9 DECnet Interface Parameter Descriptions seessseeeeeeeeennnnnt 3 11 Gonmrip ore ROTOS ads ta ao cdidit ed m a RU od M errr 3 18 vie ile ciel scl eal ats P Irsa RE ITE TRROEN 3 18 DECnet Static Route Parameter Descriptions seesssssuss 3 19 Editing Static Route Parameters voee rr t en atre o t ro eter rd 3 23 Pebinga taie ROME suci qosdp ut tebuids exa bris E M eee Dub iS roten nd labes 3 23 ye pedeEeicu Pus rciiel mum EE 3 23 zin a rale AO STI cirea a doc aso ane 3 24 DECnet Static Adjacency Parameter Descriptions seeesssssss 3 27 Editing Static Adjacency Parameters esssssssesssseeeeene enn 3 29 Daletng a Static AdaCENnEy aessdeiddasstoRiddcndte Padre e aded ida Auc uae End Ek dada god ta did 3 30 Comiquing the DECNet IY to Y TansitoN ee es 3 30 Grealing ihe DEGhel IY te V Transition aai et eco e a A 3 31 DECnet IV to V Transition Parameter Descriptions TE 3
37. eter 3 9 Max Broadcast Non Routers parameter 3 6 Max Broadcast Routers parameter 3 6 Max Circuits parameter 3 6 Max Cost parameter 3 7 Index Max Hops parameter 3 7 Max Routers parameter 3 14 Max Visits parameter 3 8 maximum transmission unit MTU 1 11 N Next Hop Area ID parameter 3 22 Next Hop Node ID parameter 3 22 Node Hello parameter 3 16 Node ID configuring for interface 2 3 3 12 defined 1 2 nodes maximum number of 1 1 types of 1 1 NSAP Network Service Access Point address DECnet Phase V 1 4 1 10 O Open Systems Interconnection OSI 1 3 Open Systems Interconnections OSI 3 30 P parameters defaults A 1 parameters See also individual parameter names Phase IV prefix 1 10 Phase IV compatible address 1 10 R Route Cost parameter 3 21 Route Enable parameter 3 4 Route Level parameter 3 4 3 11 Route Max Addr parameter 3 5 Route Type parameter 3 20 114050 Rev A Index 3 Configuring DECnet Services Router Hello parameter 1 17 3 17 Router Priority parameter 3 14 S Site Manager 3 2 SMDS group address 3 15 3 16 static adjacency adding 3 24 to 3 27 configuring 3 23 defined 1 16 deleting 3 30 editing 3 27 parameter descriptions for 3 27 to 3 29 static route adding 3 18 configuring 3 18 defined 1 14 deleting 3 23 editing 3 23 parameter descriptions for 3 19 to 3 22 Static Route Enable parameter 3 20 Support Source CD
38. ff Hello message generation on interfaces S1 and S2 Figure 1 8 DEC0008A Static Adjacencies Defined for Routers Residing in the Same Area The only network information the routers need to exchange is Level 1 topology information To reduce traffic overhead do the following e Configure a static adjacency for interface S1 that specifies its neighbor interface S2 on Router B e Configure a static adjacency for interface S2 that specifies its neighbor interface S1 on Router A e Set the Router Hello parameter to Disable for both interfaces As a result the routers know about each other s existence even though no Hello messages are exchanged 114050 Rev A Configuring DECnet Services If two Level 2 routers reside in different areas you can reduce both Hello message traffic and Level 1 topology traffic between the two systems by disabling the Router Hello parameter and the Level 1 Topology Update parameter for the connecting interfaces Figure 1 9 If you disable the Level 1 Topology Update parameter you prevent the Bay Networks router running DECnet from sending Level 1 topology update packets to other routers With static adjacencies defined turn off Hello message generation and disable Level 1 Topology Update generation
39. for error processing Figure 1 6 illustrates the translation of a DECnet Phase IV data packet to a Phase V CLNP packet Routers in the network are configured either with Phase IV only or with both Phase IV and Phase V 1 A Phase IV host sends a data packet to a Phase V end node The Phase IV host routes the packet to a router running both Phase IV and Phase V Because the router has Phase IV configured it routes the Phase IV data packet to the next router on the network which also has Phase IV configured This router routes the Phase IV data packet to the next router on the network which has both Phase IV and Phase V configured Because the destination address of the packet is a Phase V end node the router maps the address to a Phase V address and then looks it up in the Phase V forwarding tables The router then translates the source address and packet header The router then forwards the packet to the Phase V end node Advertising Routes With the DECnet IV to V Transition feature enabled the only routing information exchanged between DECnet Phase IV and Phase V is end node addresses The Phase IV router advertises Phase V end nodes in Level 1 topology update packets The DECnet Phase V router can reside in only one area Therefore the Phase V router advertises Phase IV end nodes in Level 1 link state packets only for the areas in common between Phase IV and Phase V DECnet IV to V Basic Transition Strategy Bay Network
40. gment receives a packet it cannot forward either because the destination node s address is not in the end node s destination address cache or the destination node does not reside on the circuit the end node forwards the packet to the designated router The designated router then forwards the packet toward the destination You specify a designated router by assigning a router the highest priority value among all routers on the Ethernet circuit If you do not choose a designated router or if you assign two or more routers the same priority the router assigned with the highest Node ID becomes the designated router by default refer to Chapter 3 for details on assigning the designated router 114050 Rev A 1 9 Configuring DECnet Services DECnet IV to V Transition The DECnet IV to V Transition feature provides the following capabilities Routers running DECnet Phase V can map DECnet Phase IV network layer addresses to compatible Phase V NSAP addresses and convert Phase IV data packets to Phase V Connectionless Network Protocol CLNP packets before forwarding them to a Phase V end node Routers running DECnet Phase IV can map DECnet Phase V NSAP addresses to compatible Phase IV addresses and convert Phase V CLNP packets to Phase IV data packets before forwarding them to a Phase IV end node Routers running Phase V can learn and advertise adjacent Phase IV end node addresses Routers running Phase IV can learn and advertise adj
41. h Path Cost A to B B to EN 2 hops 20 Ato D D to EN 2 hops 15 Ato C C to D D to EN 3 hops 12 DEC0004A Figure 1 4 Least Cost Path to a Destination Forwarding Process When a router receives a packet it examines the destination address contained in the packet header to determine whether to route the packet locally intra area or forward it to another destination interarea Table 1 1 shows how the router forwards a packet based on the destination address in the packet header and whether the router is configured for Level 1 Only routing or Level 1 and Level 2 routing 1 8 114050 Rev A DECnet Overview Table 1 1 Router Forwarding Based on the Destination Address in the Packet Header Router Configuration Level 1 and Level 2 or Destination Address Level 1 Only Router Action Intra area either Forwards the packet toward the destination system Interarea Level 1 and Level 2 Forwards the packet to the next hop router node or end System specified in its forwarding database Interarea Level 1 Only Forwards the packet to the nearest Level 2 router Unknown either Returns the packet to the source node if the return to sender flag is set in the data packet Unreachable Level 1 and Level 2 Drops the packet for example if the maximum hops value is exceeded The Designated Router You assign a designated router to each circuit in a DECnet network If an end node on an Ethernet se
42. he amount of traffic sent over a WAN connection To limit the amount of traffic traversing the WAN connection between static adjacencies set this value to Disable Otherwise accept the default setting 1 3 6 1 4 1 18 3 5 2 2 1 40 114050 Rev A 3 17 Configuring DECnet Services Configuring Static Routes Configure static routes when you want to control which path the router uses to route DECnet traffic to another network or node To configure a static route select Protocols DECnet IV Static Routes from the Configuration Manager window refer to Figure 3 1 The DECnet Static Routes List window appears Figure 3 4 It lists all static routes that are defined If you did not add any static routes none are listed DECnet Static Routes List a Delete Apply Values Help Static Route Enable Route Type Route Cost Figure 3 4 DECnet Static Routes List Window Adding a Static Route To add a static route 1 Click on Add in the DECnet Static Routes List window refer to Figure 3 4 The DECnet Static Routes Configuration window appears Figure 3 5 3 18 114050 Rev A Editing DECnet Parameters DECnet Static Routes CONFIGURATION Cancel OK Destination Node ID Next Hop Area ID Next Hop Node ID Figure 3 5 DECnet Static Routes Configuration Window 2 Define the static route parameters using the descriptions in the next section as a guide 3 Click on OK The D
43. ies Click on Done to exit the window 114050 Rev A 3 29 Configuring DECnet Services Deleting a Static Adjacency To delete a static adjacency 1 pe uw UY e Select Circuits Edit Circuits in the Configuration Manager window refer to Figure 3 1 The Circuit List window appears refer to Figure 3 6 listing the circuits configured on the router Select a DECnet circuit from this list and click on Edit The Circuit Definition window for the circuit appears refer to Figure 3 7 Select Protocols Edit DECnet IV Static Adjacencies in the Circuit Definition window The DECnet Static Adjacent Hosts List window appears refer to Figure 3 8 Click on the static adjacent host you want to delete Click on Delete to delete the static adjacency Repeat Steps 4 and 5 to delete additional static adjacencies Click on Done to exit the window Configuring the DECnet IV to V Transition You create edit and delete the DECnet IV to V Transition from the Configuration Manager window The following sections describe how to perform each of these tasks Note You must configure both DECnet Phase IV and OSI on each network interface participating in a DECnet IV to V Transition If you have a mixed Phase IV and Phase V network refer to Configuring OSI Services for details on configuring OSI 3 30 114050 Rev A Editing DECnet Parameters Creating the DECnet IV to V Transition To creat
44. large as this value 1 3 6 1 4 1 18 3 5 2 1 12 Area Max Cost 1022 to 1022 Specifies the maximum path cost from this router to any other area in the network The router declares a destination area unreachable if the least cost path to the destination area exceeds this number Determine the total path cost of the longest path between this router and any other area in the network and enter it here 1 3 6 1 4 1 18 3 5 2 1 13 Area Max Hops 30 1 to 30 Specifies the maximum path length in hops from this router to any other destination area in the network The router declares a destination area unreachable if the path length to the destination area exceeds this number Determine the maximum path length in hops from this router to any other destination area in the network Double this number and enter it here 1 3 6 1 4 1 18 3 5 2 1 14 3 8 114050 Rev A Editing DECnet Parameters Parameter Default Range Function Instructions MIB Object ID Max Area 63 to 63 Specifies the highest area number in your DECnet network that is the number of areas in your DECnet network You may want to set this value lower than the default to conserve slot memory Refer to your network topology map and then enter the highest area number 1 3 6 1 4 1 18 3 5 2 1 15 Editing DECnet Interface Parameters To edit a DECnet interface begin at the Configuration Manager window refer to Figure 3 1 and proceed as follo
45. ledge that such portions of the software were developed by the University of California Berkeley The name of the University may not be used to endorse or promote products derived from such portions of the software without specific prior written permission SUCH PORTIONS OF THE SOFTWARE ARE PROVIDED AS IS AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE In addition the program and information contained herein are licensed only pursuant to a license agreement that contains restrictions on use and disclosure that may incorporate by reference certain limitations and notices imposed by third parties ii 114050 Rev A Bay Networks Software License Note This is Bay Networks basic license document In the absence of a software license agreement specifying varying terms this license or the license included with the particular product shall govern licensee s use of Bay Networks software This Software License shall govern the licensing of all software provided to licensee by Bay Networks Software Bay Networks will provide licensee with Software in machine readable form and related documentation Documentation The Software provided under this license is proprietary to Bay Networks and to third parties from whom Bay Networks has acquired license rights Bay Networks will not grant any Software license whatsoever
46. lows 1 Select Protocols OSI Delete DECnet IV to V Transition A window pops up and prompts Do you REALLY want to delete OSI DECnet IV to V Transition 2 Click on OK The Configuration Manager window appears The DECnet IV to V Transition feature is no longer configured on the router 114050 Rev A 3 33 Configuring DECnet Services Deleting DECnet from the Router To delete the DECnet routing protocol from all router circuits on which it is currently enabled begin at the Configuration Manager window refer to Figure 3 1 and proceed as follows 1 Select Protocols DECnet IV Delete DECnet IV A window pops up and prompts Do you REALLY want to delete DI 2 Click on OK The Configuration Manager window appears DECnet is no longer configured on the router ECnet IV If you examine the Configuration Manager window you see that the connectors for circuits on which DECnet was the only protocol enabled are no longer highlighted You must reconfigure the circuits for these connectors Refer to Configuring Routers for details on configuring circuits 3 34 114050 Rev A Appendix A DECnet Parameter Default Settings Tables A 1 through A 5 show the default settings for the DECnet Phase IV and DECnet Phase IV to V Transition parameters in Site Manager Use the Configuration Manager to edit any of the default settings listed here refer to Chapter 3 Table A 1 DECnet Phas
47. mation in an adjacency table thus creating a database of next hops to use to forward data packets A hop is the logical distance between two nodes Decision Process The router calculates the least cost paths from itself to all other systems it can reach using information it receives from other routers and stores in routing tables If the least cost path is disabled or a node fails the router finds an alternate path if one exists Site Manager assigns every circuit on a DECnet network a default cost During the decision process the router running DECnet calculates the total path cost of forwarding a datagram along each possible path toward its destination The total path cost is the sum of the costs of the outbound circuits that make up the path Figure 1 3 The least cost path is the one that the router prefers Key Cost from A to B 12 Cost from B to A 15 End Node i Figure 1 3 Router DEC0003A Calculating the Least Cost Path 1 6 114050 Rev A DECnet Overview When deciding among multiple paths to a destination the router chooses the path that is assigned a lower path cost over one assigned a higher cost even if the lower cost path is longer Figure 1 4 If two paths have the same cost the router chooses the path whose next hop has the higher address The amount of traffic on a circuit does not affect the path selected by the router Once the r
48. n and disclosure are as set forth in the Commercial Computer Software Restricted Rights clause at FAR 52 227 19 Trademarks of Bay Networks Inc ACE AFN AN BCN BLN BN BNX CN FN FRE GAME LN Optivity PPX SynOptics SynOptics Communications Wellfleet and the Wellfleet logo are registered trademarks and ANH ASN BayeSIS BCNX BLNX EZ Install EZ Internetwork EZ LAN PathMan PhonePlus Quick2Config RouterMan SPEX Bay Networks Bay Networks Press the Bay Networks logo and the SynOptics logo are trademarks of Bay Networks Inc Third Party Trademarks All other trademarks and registered trademarks are the property of their respective owners Statement of Conditions In the interest of improving internal design operational function and or reliability Bay Networks Inc reserves the right to make changes to the products described in this document without notice Bay Networks Inc does not assume any liability that may occur due to the use or application of the product s or circuit layout s described herein Portions of the code in this software product are Copyright 1988 Regents of the University of California All rights reserved Redistribution and use in source and binary forms of such portions are permitted provided that the above copyright notice and this paragraph are duplicated in all such forms and that any documentation advertising materials and other materials related to such distribution and use acknow
49. our Bay Networks Technical Response Center Technical Response Center Telephone Number Fax Number Billerica MA 1 800 2LANWAN 508 670 8765 Santa Clara CA 1 800 2LANWAN 408 764 1188 Valbonne France 33 92 968 968 Sydney Australia 612 9927 8800 612 9927 8811 Tokyo Japan 81 3 5402 0180 33 92 966 998 81 3 5402 0173 114050 Rev A xxi Chapter 1 DECnet Overview This chapter shows how Bay Networks router software works with DECnet services and describes the Organization of end nodes and routers in a DECnet network Transmission of messages from the Bay Networks router through the DECnet network Routing decision process for a DECnet network DECnet IV to V Transition feature Purpose of static routes Static adjacency support DECnet Network Organization A DECnet network contains two types of nodes end nodes and routers End nodes send and receive messages Routers transmit messages to end nodes and other routers on the network DECnet Phase IV Organization DECnet Phase IV is a networking protocol that supports large networks up to approximately 64 000 nodes You can divide each network into as many as 63 distinct areas each area contains up to 1023 nodes You must assign to each area an Area ID unique to the network You must also assign to each node within an area a Node ID unique to the area 114050 Rev A Configu
50. outer determines the least cost path to a destination it stores the identity of the corresponding adjacent router in its forwarding database The adjacent router is the next hop on the path toward the destination The router keeps separate forwarding databases for intra area and interarea routing If you configure the router to perform Level 1 Only routing it does not process Level 2 updates Instead it forwards interarea traffic to the nearest Level 2 router The complete distance or number of hops that a packet travels from the source to its destination is the path length The maximum number of hops the routing algorithm will forward a packet to is called the maximum hops value To set the maximum hops value refer to Chapter 3 If the distance between the source and destination exceeds the maximum hops value the packet is returned or dropped 114050 Rev A 1 7 Configuring DECnet Services ST 10 10 2 10 5 v z E a C 5 D Key End Node cS Router Router A wants to route a packet to the end node Three different paths are available Router A forwards the packet along path choice 3 because it has the lowest Total Path Cost 12 Path Choice Path Lengt
51. ovide up to date support information as a first line resource for network administration expansion and maintenance This information is available from a variety of sources World Wide Web The Bay Networks Customer Support Web Server offers a diverse library of technical documents software agents and other important technical information to Bay Networks customers and partners A special benefit for contracted customers and resellers is the ability to access the Web Server to perform Case Management This feature enables your support staff to interact directly with the network experts in our worldwide Technical Response Centers A registered contact with a valid Site ID can e View a listing of support cases and determine the current status of any open case Case history data includes severity designation and telephone e mail or other logs associated with the case e Customize the listing of cases according to a variety of criteria including date severity status and case ID e Log notes to existing open cases e Create new cases for rapid efficient handling of noncritical network situations Communicate directly via e mail with the specific technical resources assigned to your case The Bay Networks URL is Attp www baynetworks com Customer Service is a menu item on that home page Customer Service FTP Accessible via URL ftp support baynetworks com 134 177 3 26 this site combines and organizes support files and
52. ow Configuring Static Adjacencies The DECnet router allows you to specify static transmission paths to adjacent hosts The static adjacency may or may not be another router 114050 Rev A 3 23 Configuring DECnet Services Adding a Static Adjacency To add a static adjacency begin at the Configuration Manager window refer to Figure 3 1 and proceed as follows 1 Select Circuits Edit Circuits The Circuit List window appears which lists the circuits configured on the router Figure 3 6 S tiruit list Configuration Mode local SNMP Agent LOCAL FILE Circuits Delete Figure 3 6 Circuit List Window 2 Select a DECnet circuit from the list and click on Edit The Circuit Definition window for that circuit appears Figure 3 7 3 24 114050 Rev A Editing DECnet Parameters S timuit lefitim Slot T CONSOLE Figure 3 7 Circuit Definition Window 3 Select Protocols gt Edit DECnet IV gt Static Adjacencies in the Circuit Definition window The DECnet Static Adjacent Hosts List window appears Figure 3 8 114050 Rev A 3 25 Configuring DECnet Services EI DECnet Static Adjacent Hosts List a Tone Add Delete Apply Values Help Adjacency Enable Adjacency Type Adjacency Priority Destination MAC Address Figure 3 8 DECnet Static Adjacent Hosts List Window 4 Click on Add The DECnet Static Adjacency Configuration
53. reto eaa eran Ian rk ek Ran ka Du ndn eae URS 3 2 Edit DECnet Global Parameters Window sse 3 3 DECnet IV Interface List Window sssseeeneenerennenn 3 10 DECnet Static Routes List WIDOON ieu istio rotis teotx o qaot neto e o sid etes 3 18 DECnet Static Routes Configuration Window ssssesss 3 19 ROUT List WOOW 13st pid ueten d oban ocu Ui Rr telas pos usu Eee ulus d ee bAD dd a bains 3 24 OAC UE aie eles al deett rte eee rr re trreer ee mrecerrmerme rrr ermcerr rarer ry 3 25 DECnet Static Adjacent Hosts List Window essseseesssss 3 26 DECnet Static Adjacency Configuration Window sssssse 3 26 Create DECnet IV to V Transition Parameters Window 3 31 Tables Table 1 1 Router Forwarding Based on the Destination Address in the Packet Header NONE ON A TULIP REIR RN RENE I RE NER 1 9 Table A 1 DECnet Phase IV Global Parameters cccccsssssceeceeeeeceeeeeeseeseaaees A 1 Table A 2 DECnet Phase IV Interface Parameters ccccceessssecceeeeeceeeeeesenseaaees A 2 Table A 3 DECnet Static Route Parameters 1 eere I SR to ae elt iaddaton RUE A 2 Table A 4 DECnet Static Adjacency Parameters sssssssseese A 3 Table A 5 DECnet IV to V Transition Parameters sseessseeeeeneeees A 3 114050 Rev A xi If you are responsible for configuring Bay Networks About This
54. ring DECnet Services Together the Area ID and Node ID form a 16 bit DECnet Phase IV address Figure 1 1 The first 6 bits identify the area in which the node resides the last 10 bits identify the node itself Each DECnet Phase IV address must be unique within the network 6 bits 10 bits 4 l OMX SS DECO0001A Figure 1 1 DECnet Phase IV Address A Bay Networks router running the routing software for a DECnet Phase IV network can service multiple areas that is you can assign a DECnet Phase IV address to each of the router s individual interfaces rather than to the entire router For example if a router resides in multiple areas has circuits connecting to more than one area you assign an Area ID and Node ID for each area to which it connects A router can also have several interfaces each one with a unique Node ID in the same area In Figure 1 2 circuits E21 and E22 have different DECnet addresses even though they connect to the same router Note that each circuit s address is still unique within its area and within the DECnet network 1 2 114050 Rev A Area 1 Circuit E21 DECnet Overview Area 10 Circuit E22 Area ID 1 Node ID 3 DECnet Phase IV Address for Circuit E21 1 3 Key End Node CL JL i Router Area ID 10 Node ID 100 DECnet Phase IV Address for Circuit E21
55. rks product from a distributor or authorized reseller contact that distributor s or reseller s technical support staff for assistance with installation configuration troubleshooting or integration issues Customers can also purchase direct support from Bay Networks through a variety of service programs As part of our PhonePlus program Bay Networks Service sets the industry standard with 24 hour 7 days a week telephone support available worldwide at no extra cost Our complete range of contract and noncontract services also includes equipment staging and integration installation support on site services and replacement parts delivery within approximately 4 hours To purchase any of the Bay Networks support programs or if you have questions on program features use the following numbers Region Telephone Number Fax Number United States and 1 800 2LANWAN enter Express Routing 508 670 8766 Canada Code ERC 290 when prompted 508 436 8880 direct Europe 33 92 968 300 33 92 968 301 Asia Pacific Region 612 9927 8800 612 9927 8811 Latin America 407 997 1713 407 997 1714 In addition you can receive information on support programs from your local Bay Networks field sales office or purchase Bay Networks support directly from your authorized partner xviii 114050 Rev A Technical Support and Online Services Bay Networks Information Services Bay Networks Information Services pr
56. s in writing of any such intended examination of the Software and Bay Networks may provide review and assistance Notwithstanding any foregoing terms to the contrary if licensee licenses the Bay Networks product Site Manager licensee may duplicate and install the Site Manager product as specified in the Documentation This right is granted solely as necessary for use of Site Manager on hardware installed with licensee s network This license will automatically terminate upon improper handling of Software such as by disclosure or Bay Networks may terminate this license by written notice to licensee if licensee fails to comply with any of the material provisions of this license and fails to cure such failure within thirty 30 days after the receipt of written notice from Bay Networks Upon termination of this license licensee shall discontinue all use of the Software and return the Software and Documentation including all copies to Bay Networks Licensee s obligations under this license shall survive expiration or termination of this license 114050 Rev A Contents Configuring DECnet Services About This Guide BEIDES oU OO E EE A A A Dolo T Fade asado Ending ncn fresa Gud buda xiii opti PM eT xiv WI cR M CPU XV Ordenng Bay Networks PUDNGSUONS sic jansicccsaeisveeciasccveaiassseeaatandinieretaseelenatabenmadadudes XV Technical Support and Online Services Bay Networks Customer Senp 2 ceecsaccticcdinceasaccedtievecddeeiesti
57. s local area Level 1 Only routing prevents the sending of Level 2 routing updates thus reducing traffic on an interface By default the Bay Networks routing software for DECnet services performs both types of routing When the router performs both Level 1 and Level 2 routing you can configure each router interface as either Level 1 and Level 2 or as Level 1 Only When you configure the router to perform Level 1 Only routing the router maintains paths only to those systems within its local area When the router performs Level 1 Only routing you must configure all router interfaces as Level 1 Only 1 4 114050 Rev A DECnet Overview When a Bay Networks router receives a packet it examines the destination address contained in the packet header If the destination address is within the same area as the router the router forwards the packet toward the destination system using the least cost path If the address is to another area the router behaves differently depending on whether the interface performs Level 1 and Level 2 routing or Level 1 Only routing e Ifthe router interface performs both Level 1 and Level 2 routing the router forwards the packet to the specified area using the least cost path e If the router interface performs Level 1 Only routing the router forwards the packet to the nearest Level 2 router e If the router and all of its interfaces perform Level 1 Only routing the router forwards the packet to the neare
58. s uses a dual stack approach to support the DECnet IV to V Transition feature This approach provides the following advantages 114050 Rev A Configuring DECnet Services e Phase IV and Phase V routing are done in parallel A router routes packets whose source and destination nodes operate the same phase of DECnet using their native routing protocol e A router translates a packet when necessary and only once Youcan transition routers incrementally rather than all at once The following strategy allows you to use the DECnet IV to V Transition feature to support a graceful migration from a Phase IV network to a Phase V network 1 Allrouters run Phase IV with contiguous areas and contiguous Level 2 backbone 2 Allrouters continue to run Phase IV On an individual basis routers run Phase V with the DECnet IV to V Transition feature enabled All routers running Phase V are contiguous within areas 3 Allrouters in the routing domain run Phase IV and Phase V with the DECnet IV to V Transition feature enabled 4 Phase IV is turned off on an individual basis continuity is not necessary at this point If Phase IV routing fails for a particular DECnet data packet then the router forwards the packet using Phase V 5 Allrouters run Phase V Only routers with adjacent Phase IV only end nodes run Phase IV and Phase V with the DECnet IV to V Transition feature enabled A Phase V host runs in Phase IV compatible mode when it is on
59. st Level 2 router The Routing Process Routing a DECnet packet through the network involves e Updating adjacent routers on the availability of surrounding nodes and circuits e Listening for messages from adjacent routers identifying available nodes and circuits e Determining the routing path with the least cost e Forwarding the packet to the specified adjacent node Update Process The Bay Networks router software for DECnet services continually monitors the circuits directly attached to it It periodically receives routing control messages from its adjacent routers These routing updates inform the router of the current network topology For example if a circuit on a router fails or another circuit is added the network topology changes The router then generates and transmits routing updates to all adjacent routers informing them of the changes Timers control how often the router sends out updates Routing updates describe which nodes in the local area are reachable called node or Level 1 topology updates and which other areas in the network are reachable called area or Level 2 topology updates Routers use this information to update their routing tables 114050 Rev A Configuring DECnet Services Listening Process The router periodically receives Hello messages from its adjacent routers informing it of their identity and of the circuits the router can use to reach the adjacent nodes The router stores this infor
60. structions MIB Object ID Max Broadcast Non Routers 64 0 to 1023 Specifies the maximum number of end node adjacencies residing on all circuits for a single slot The higher the number of adjacent end nodes the greater the impact on the router s performance and memory use Consult your network topology drawing If there are more than 64 end node adjacencies on any of the router s slots increase this number to reflect your network topology 1 3 6 1 4 1 18 3 5 2 1 7 Max Broadcast Routers 32 0 to 1023 Specifies the maximum number of router adjacencies on all circuits for a single slot Consult your network topology drawing If there are more than 32 router adjacencies on any of the router s slots increase this number to reflect your network topology Decrease this number if there are fewer than 32 router adjacencies on a single slot 1 3 6 1 4 1 18 3 5 2 1 8 Max Circuits 1024 to 1024 Specifies the highest circuit number that this router can recognize that is the maximum number of circuits that this router can recognize We recommend accepting the default value 1 3 6 1 4 1 18 3 5 2 1 9 3 6 114050 Rev A Parameter Default Range Function Instructions MIB Object ID Parameter Default Range Function Instructions MIB Object ID Editing DECnet Parameters Max Cost 1022 to 1022 Specifies the maximum path cost from this router to any destination node in the local area The p
61. structions MIB Object ID Parameter Default Range Function Instructions MIB Object ID Editing DECnet Parameters Level 1 Only Area 1 1 to 63 Specifies the DECnet Area ID for all circuits if you configured the router as Level 1 Only The Area ID is the first 6 bits of a DECnet node address Specify the Area ID by entering a number between 1 and 63 You cannot configure this parameter unless you first configure the router to perform Level 1 Only routing 1 3 6 1 4 1 18 3 5 2 1 20 Broadcast Route Timer 180 1to 65535 Determines the maximum amount of time in seconds between routing updates that the router issues If no routing update occurs before this timer expires the router generates a routing update automatically Enter a number between 1 and 65535 If you want the Bay Networks router to generate routing updates more frequently enter a lower value than the current one 1 3 6 1 4 1 18 3 5 2 1 4 Route Max Addr 1023 1 to 1023 Specifies the highest Node ID contained within all areas We recommend accepting the default value If you change the default make certain to use the same value for each router in the network 1 3 6 1 4 1 18 3 5 2 1 6 114050 Rev A 3 5 Configuring DECnet Services Parameter Default Range Function Instructions MIB Object ID Parameter Default Range Function Instructions MIB Object ID Parameter Default Range Function In
62. sulting software available for use by any third party Neither title nor ownership to Software passes to licensee Licensee shall not provide or otherwise make available any Software in whole or in part in any form to any third party Third parties do not include consultants subcontractors or agents of licensee who have licensee s permission to use the Software at licensee s facility and who have agreed in writing to use the Software only in accordance with the restrictions of this license Third party owners from whom Bay Networks has acquired license rights to software that is incorporated into Bay Networks products shall have the right to enforce the provisions of this license against licensee Licensee shall not remove or obscure any copyright patent trademark trade secret or similar intellectual property or restricted rights notice within or affixed to any Software and shall reproduce and affix such notice on any backup copy of Software or copies of software resulting from modification or combination performed by licensee as permitted by this license 114050 Rev A iii Bay Networks Software License continued 10 11 12 Licensee shall not reverse assemble reverse compile or in any way reverse engineer the Software Note For licensees in the European Community the Software Directive dated 14 May 1991 as may be amended from time to time shall apply for interoperability purposes Licensee must notify Bay Network
63. t ID Node ID None 1 to 1023 Specifies a unique DECnet Node ID for this circuit The Node ID is the last 10 bits of a DECnet node address Note that individual circuits on a Bay Networks router can have different Node IDs Enter the Node ID assigned to this circuit 1 3 6 1 4 1 18 3 5 2 2 1 5 3 12 114050 Rev A Parameter Default Range Function Instructions MIB Object ID Parameter Default Range Function Instructions MIB Object ID Editing DECnet Parameters Cost 10 1 to 63 Specifies the relative cost of routing over this circuit The sum of the individual outbound circuit costs from a source node to a destination node is the total path cost When the router receives a data packet it decides which circuit to forward the packet over based on the least cost path toward the destination If you want the circuit to be used on a regular basis assign it a low cost similarly assign the circuit a high cost if you do not want it used on a regular basis 1 3 6 1 4 1 18 3 5 2 2 1 9 Hello Timer 15 1 to 8191 Specifies in seconds how often the router broadcasts DECnet Hello messages to all nodes on this circuit Increase the Hello Timer if you want to reduce the amount of traffic traversing a slow line 1 3 6 1 4 1 18 3 5 2 2 1 10 Note Inconsistent Hello Timer settings can cause confusion between DECnet routers and end nodes when rerouting occurs We recommend that you set the
64. te no default is displayed and you cannot configure this parameter When you add a static route this parameter defaults to Level 2 1 3 6 1 4 1 18 3 5 2 8 1 3 3 20 114050 Rev A Parameter Default Range Function Instructions MIB Object ID Parameter Default Range Function Instructions MIB Object ID Parameter Default Range Function Instructions MIB Object ID Editing DECnet Parameters Route Cost 10 to 63 Specifies the total cost of a route to a destination address Keep in mind that routes with lower costs are preferred routes This means that you can force traffic over particular routes if you like Enter the route cost assigned to the static route If you did not first add a static route no default is displayed and you cannot configure this parameter When you add a static route this parameter defaults to 10 1 3 6 1 4 1 18 3 5 2 8 1 6 Destination Area ID None to 63 Specifies the Area ID portion of the static route s destination DECnet address Enter the Area ID of the area in which the destination of this route resides 1 3 6 1 4 1 18 3 5 2 8 1 4 Destination Node ID None to 1023 Specifies the Node ID portion of the static route s destination DECnet address Enter the Node ID of the destination end system of this static route 1 3 6 1 4 1 18 3 5 2 8 1 5 114050 Rev A 3 21 Configuring DECnet Services Parameter Default Range
65. the same local area network LAN segment as a Phase IV host For details on adding the DECnet IV to V Transition feature and editing the parameters refer to Chapter 3 Static Routes The Bay Networks routing software for DECnet services allows you to configure static routes to another network or node for the Bay Networks router Static routes are manually configured routes that specify the transmission path a datagram must follow based on the datagram s destination address Use static routes and disable the sending of Level 1 and Level 2 topology update packets to reduce traffic over wide area networks WANs or slow links Static routes restrict the paths that datagrams follow to paths you specifically configure 114050 Rev A DECnet Overview For example Figure 1 7 shows three Level 2 routers that reside in different areas To configure a static route from Router A to Router C you must specify the source address next hop and destination address Because this is a route from Area 1 to Area 2 the static route type is Level 2 Next Hop Destination Router DECO0007A Figure 1 7 Static Routes Defined for Routers Residing in Different Areas You can refer to Configuring Static Routes in Chapter 3 for details on adding editing and deleting static routes 114050 Rev A Configuring DECnet Services Static A
66. tworks service contracts also have access to special libraries for advanced levels of support documentation and software To take advantage of CompuServe s recently enhanced menu options the Bay Networks Forum has been re engineered to allow links to our Web sites and FTP sites We recommend the use of CompuServe Information Manager software to access these Bay Networks Information Services resources To open an account and receive a local dial up number in the United States call CompuServe at 1 800 524 3388 Outside the United States call 1 614 529 1349 or your nearest CompuServe office Ask for Representative No 591 When you are on line with your CompuServe account you can reach us with the command GO BAYNET XX 114050 Rev A InfoFACTS Technical Support and Online Services InfoFACTS is the Bay Networks free 24 hour fax on demand service This automated system has libraries of technical and product documents designed to help you manage and troubleshoot your Bay Networks products The system responds to a fax from the caller or to a third party within minutes of being accessed To use InfoFACTS in the United States or Canada call toll free 1 800 786 3228 Outside North America toll calls can be made to 1 408 764 1002 In Europe toll free numbers are also available for contacting both InfoFACTS and CompuServe Please check our Web page for the listing in your country How to Get Help Use the following numbers to reach y
67. uits or group address SMDS circuits that you obtain from your service provider If you do not specify a value for this parameter broadcast traffic will be sent to all virtual circuits configured on the interface 1 3 6 1 4 1 18 3 5 2 2 1 32 114050 Rev A 3 15 Configuring DECnet Services Parameter Default Options Function Instructions MIB Object ID Parameter Default Options Function Instructions MIB Object ID Area Routers MAC None Frame Relay multicasting address SMDS group address Assigns the AllAreaRouters multicast MAC address value to this circuit for use over Frame Relay and SMDS WAN connections This allows you to specify a destination address for DECnet Level 2 broadcast traffic across the Frame Relay or SMDS cloud This parameter is valid only if this circuit is a Frame Relay or SMDS circuit Enter the multicasting address Frame Relay circuits or group address SMDS circuits that you obtain from your service provider If you do not specify a value for this parameter broadcast traffic will be sent to all virtual circuits configured on the interface 1 3 6 1 4 1 18 3 5 2 2 1 33 Node Hello Enable Enable Disable When disabled keeps the DECnet router from sending Hello packets to end nodes Use this parameter with a static adjacency to limit the amount of traffic sent over a WAN connection To limit the amount of traffic traversing the WAN connection between static adja
68. wism amp Example Use the dinfo command Example ATM DXI gt Interfaces gt PVCs identifies the PVCs button in the window that appears when you select the Interfaces option from the ATM DXI menu Indicates variable values in command syntax descriptions new terms file and directory names and book titles Indicate the title of a chapter or section within a book Indicates data that appears on the screen Example Set Bay Networks Trap Monitor Filters Separates menu and option names in instructions and internal pin to pin wire connections Example Protocols gt AppleTalk identifies the AppleTalk option in the Protocols menu Example Pin 7 gt 19 gt 20 Indicates that you enter only one of the parts of the command The vertical line separates choices Do not type the vertical line when entering the command Example If the command syntax is show at routes nets you enter either show at routes or show at nets but not both Xiv 114050 Rev A About This Guide Acronyms AFI authority format identifier CLNP Connectionless Network Protocol DSP Domain Specific Part ES IS End System to Intermediate System IDI Initial Domain Identifier IDP Initial Domain Part IS IS Intermediate System to Intermediate System MAC media access control MIB Management Information Base NSAP Network Service Access Point OSI Open Systems Interconnection SMDS Switched Multimegabit Data Services WAN wide area network Ordering Bay
69. ws 1 Select Protocols DECnet IV Interfaces The DECnet IV Interface List window appears Figure 3 3 The window displays all interfaces on which DECnet is enabled 114050 Rev A 3 9 Configuring DECnet Services EI DECnet IV Interface List Bone Apply Values Help i et z Enable ENABLE Route Level LEVEL1 LEVEL2 Area ID 1 Node ID 2 Cost 10 Hello Timer 15 Figure 3 3 DECnet IV Interface List Window Click on the interface you want to edit Edit the parameters using the descriptions in the next section as a guide Click on Apply to implement your changes yi PF YS NM Click on Done to exit the window Site Manager returns you to the Configuration Manager window Note When you reconfigure an interface in dynamic configuration mode DECnet restarts on that interface 3 10 114050 Rev A Editing DECnet Parameters DECnet Interface Parameter Descriptions Use the following descriptions as a guide when you configure the parameters in the DECnet IV Interface List window refer to Figure 3 3 Parameter Default Options Function Instructions MIB Object ID Parameter Default Options Function Instructions MIB Object ID Enable Enable Enable Disable Enables or disables DECnet over this circuit To disable DECnet over this circuit set to Disable Otherwise accept the default setting 1 3 6 1 4 1 18 3 5 2 2 1 2 Route Level

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