Cabletron Systems 9T427-16 User's Manual
Contents
1. LED Color State Green 16Mbs TXI 32M s Yellow 4 Mbs TXI 8Mb s Flashing Yellow 16 Mbs TKP Off 4 Mbs TKP TXI is Transmit Immediate or Full Duplex operation TKP is Token Passing or standard Token Ring 4 5 LANVIEW LEDs 4 6 Specifications Safety It is the responsibility of the person who sells the system to which the module will be a part to ensure that the total system meets allowed limits of conducted and radiated emissions This equipment meets the safety requirements of UL 1950 CSA C22 2 No 950 EN 60950 IEC 950 EMI Requirements of FCC Part 15 Class A EN 55022 Class A VCCI Class I EMC requirements of EN 50082 1 IEC 801 2 ESD IEC 801 3 Radiated susceptibility IEC 801 4 EFT Service MTBF MHBK 217E gt 200 000 hrs MTTR lt 0 5 hr Specifications Physical Dimensions 35 0 D x 44 0 H x 6 0 W centimeters 13 8 D x 17 4 H x 2 4 W inches Weight Unit 1 4kg 31b 9T427 16 2 7kgs 6lbs 9T425 16 amp 9T428 16 Shipping 1 81kg 4lbs 9T427 16 3 6kgs 8lbs 9T425 16 amp 9T428 16 Electrical CPU 1960 Local DRAM Memory 20Mb expandable to 48Mb Flash 4Mb expandable to 8Mb Token Ring Interfaces 16 Cabletron Token Ring Controllers Packet Buffer Memory 2MB shared plus 64KB per port NVRAM 128 Kb Standards IEEE 802 5r Dedicated Token Ring DTR IEEE 802 1d Transparent Bridging Port Interfaces 9T 425 16 9T427 16 Shielded RJ45 9T428 12. Communications Le pr sent appareil num rique n met pas de bruits radio lectriques d passant les limites applicables aux appareils num riques de la class A prescrites dans le Reglement sur le brouillage radio lectrique dict par le minist re des Communications du Canada Notice DECLARATION OF CONFORMITY Application of Council Directive s Manufacturer s Name Manufacturer s Address European Representative Name European Representative Address Conformance to Directive s Product Standards Equipment Type Environment 89 336 EEC 73 23 EEC Cabletron Systems Inc 35 Industrial Way PO Box 5005 Rochester NH 03867 Mr J Solari Cabletron Systems Limited Nexus House Newbury Business Park London Road Newbury Berkshire RG13 2PZ England EC Directive 89 336 EEC EC Directive 73 23 EEC EN 55022 EN 50082 1 EN 60950 Networking Equipment for use in a Commercial or Light Industrial Environment We the undersigned hereby declare under our sole responsibility that the equipment packaged with this notice conforms to the above directives Manufacturer Mr Ronald Fotino Full Name Principal Compliance Engineer Title Rochester NH USA Location iij Legal Representative in Europe Mr J Solari Full Name Managing Director E M E A Title Newbury Berkshire England Location Notice Chapter 1 Introduction Beatutes z ee ZE EAN 1 1 Rela
3. DTR LOBE PORT Mode 9T425 16 9T427 16 Cable Type 4 MBPS meters 16 MBPS meters Category 3 UTP 250 100 Category 4 5 UTP 350 250 Type 1STP 600 500 Table 2 6 Multimode Fiber Optic Cable 9T428 16 Cable Type 4 MBPS km 16 MBPS km Multimode 50 125 um 2 2 Multimode 62 5 125 um 2 2 Multimode 100 140um 2 2 2 9 Installation Defaults 2 10 When the module is installed the parameters listed below are the defaults These can be changed by Local Management or by SNMP management Ring Speed or Media Rate Defaults to a 16Mbps ring speed Ring Numbers Default to the Token Ring port number i e port 3 ring number 3 If Auto Detect Ring Number is enabled and a RPS device is present the ring number will be set to the existing number in use on the attached ring segment Source Route Bridge Number Defaults to one Virtual Ring Number All ports are switched to an internal virtual ring The number defaults to CAC C Port Mode Defaults to STN RI for the 9T428 16 module The 9T425 16 and 9T427 16 default to AUTO it automatically determines STN or LOBE when the cable is attached Bridge Type Explorer Type Defaults to TP TP This setting allows the port to receive Source Route and Transparent frames but transmits all frames to the ring segment connected to the front panel as Transparent frames TP Unknown and broadcast Explorers are also transmitted as tr
4. Introduction 1 2 sue O O cru ae ae E ae e ale E 3p ge 3s dz lt dp B Ela 2 el m N el f A E Ea as ale Bla ae Fle ae Bla Ele 13 8 3 14 3 Hs E 2 H E El H B BR a x sm m Rx Mois LED MODE word is e word ios ss wed dus woe ius es wor dus 2 9 word irs e eJ word ds sum O cru 33 wo d ie O NODE d dee e ss weed is e nove d d e NODE Y es e NODE Y wie e ee woe iue e oe wo d doe e Figure 1 1 The 9T425 16 9T427 16 and 9T428 16 SmartSwitch 9000 Modules Introduction Packet Switching Packet Switching occurs between the front panel Token Ring connections and or to any other module in the chassis via the INB2 bus These modules are capable of Transparent Bridging or Source Route Translational Bridging IEEE 802 1d Spanning Tree Protocol is supported in all bridging functions Sour
5. source device receives all of the ARE replies from the other end stations on the network 4 From this information the source device can determine a desired route for each frame it transmits Spanning Tree Algorithm IEEE 802 1d The 9T425 16 9T427 16 and 9T428 16 promote maximum network use in multiple bridge environments A bridge learns the bridge topology of its network from bridge protocol data that it receives from other bridges within the network The bridges then apply the Spanning Tree Algorithm STA to select a root bridge and then determine primary data paths within potential data loop configurations BPDUs that are transmitted by the TR ports are sent to the bridge group address in MSB format 0X800143000000 Operation Spanning Tree Algorithm is a hierarchy or tree of priorities that bridges establish between themselves This hierarchy guarantees that primary and redundant data paths are clearly defined at all times so that the network is continuously available to users In a multiple bridge environment one bridge in the network establishes itself as the root bridge As the root this bridge has priority over all other bridges In a Spanning Tree all of the bridges must determine which bridge is the root and then determine their own relative priority within the network System Management Buses There are two management channels within the SmartSwitch 9000 system the SMB 1 and the SMB 10 These buses provide
6. the SmartSwitch 9000 ASIC to the front panel ports SecureFast Switch The SmartSwitch 9000 ASIC is a hardware based switch design that is the key building block of the SmartSwitch 9000 All filtering forwarding decisions are made in hardware as opposed to software as in traditional switches This custom hardware allows the SmartSwitch 9000 ASIC to process over 750K frames per second The SmartSwitch 9000 ASIC is designed to support up to 64 ports that are shared between the host processor the INB backplane and LAN WAN interfaces on the front panel of SmartSwitch 9000 modules The SmartSwitch 9000 ASIC can operate in two modes as a traditional switch or as a SecureFast Switch SFS When operating in traditional switch mode it makes filtering forwarding decisions based on Destination Address DA with standard IEEE 802 1d Operation learning When operating in SecureFast Switch mode all filtering forwarding decisions are made based on a DA SA pair and its receive port The SmartSwitch 9000 hub can support modules operating in traditional switch mode and SecureFast Switch mode simultaneously This provides security when and where needed and ease of configuration where security is not required 1960 Core The i960 core provides the SNMP protocol stacks to support industry standard MIBs Additionally Cabletron enterprise extension MIBs are supported for each media type Advanced management services such as the Distributed LAN Mo
7. 2 1 Functions of DIP Switch Switch Function Description Clear When toggled this switch clears user entered Password passwords stored in NVRAM and restores the default passwords Once reset you can use the defaults or enter new passwords The module uses NVRAM to store user entered parameters such as IP addresses device name etc To reset these parameters to the factory defaults toggle this switch Once reset you can use the defaults or enter new parameters which are stored in NVRAM when the module is powered down and remain there until the switch is toggled again Force BootP Toggling this switch after pulling the board out Download of the SmartSwitch 9000 clears download information from NVRAM and forces image files to be downloaded from the station configured to act as that modules BOOTP server Reserved For Factory Use Only Factory Default is OFF Reserved For Factory Use Only Factory Default is OFF Reserved For Factory Use Only Factory Default is OFF Reserved For Factory Use Only Factory Default is OFF wa 1 Reserved For Factory Use Only Factory Default is OFF Do not toggle Switch 8 unless you intend to reset the user configured passwords to their factory default settings 2 Do not toggle Switch 7 unless you intend to reset the user parameters to the factory default settings 2 5 Installation Front Panel Cabling This section
8. 6 ST Fiber Optic 5 2
9. NOTE This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC rules These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment uses generates and can radiate radio frequency energy and if not installed in accordance with the operator s manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause interference in which case the user will be required to correct the interference at his own expense WARNING Changes or modifications made to this device which are not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment VCCI Notice This is a Class A product based on the standard of the Voluntary Control Council for Interference by Information Technology Equipment VCCI If this equipment is used in a domestic environment radio disturbance may arise When such trouble occurs the user may be required to take corrective actions CORB PAURE ERREA EKMIR VCCI ORF CHI lt IFRAHRENKETT COREE RR CHAT CBR HERBIERITIENBOET COBAIN IR AS ZLDBRANSTEMHOVET DOC Notice This digital apparatus does not exceed the Class A limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of
10. SmartSwitch 9000 9T425 16 9T427 16 and 9T428 16 Token Ring Module Users Guide CABLETRON Systems 9032172 04 Notice Notice Cabletron Systems reserves the right to make changes in specifications and other information contained in this document without prior notice The reader should in all cases consult Cabletron Systems to determine whether any such changes have been made The hardware firmware or software described in this manual is subject to change without notice IN NO EVENT SHALL CABLETRON SYSTEMS BE LIABLE FOR ANY INCIDENTAL INDIRECT SPECIAL OR CONSEQUENTIAL DAMAGES WHATSOEVER INCLUDING BUT NOT LIMITED TO LOST PROFITS ARISING OUT OF OR RELATED TO THIS MANUAL OR THE INFORMATION CONTAINED IN IT EVEN IF CABLETRON SYSTEMS HAS BEEN ADVISED OF KNOWN OR SHOULD HAVE KNOWN THE POSSIBILITY OF SUCH DAMAGES O Copyright December 1999 by Cabletron Systems Inc P O Box 5005 Rochester NH 03866 5005 All Rights Reserved Printed in the United States of America Order Number 9032172 04 SPECTRUM and LANVIEW are registered trademarks and MicroLAN and SmartSwitch 9000 are trademarks of Cabletron Systems Inc Notice FCC Notice This device complies with Part 15 of the FCC rules Operation is subject to the following two conditions 1 this device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation
11. TX position This is the default switch setting LED functions when LED MODE switch is in the STN Mb s position He gm Ele de Ele sese dese dese ese T LED Mode Switch Rx LED NODE Figure 4 2 9T427 16 LEDs and Mode Switch 4 2 LANVIEW LEDs The functions of the two System Status LEDs System Management Bus SMB and the CPU are listed in Table 4 1 Table 4 1 System Status LEDs SMB and CPU LED Color State Description Green Functional Fully operational Yellow Flashing Crippled Not fully operational i e one bad port Yellow Green Booting Blinks yellow and green while booting Red Reset Normal power up reset Red Flashing Failed Fatal error has occurred Off Power off Module powered off The functions of the INB receive LED are listed in Table 4 2 Table 4 2 INB Receive LED LED Color State Red No link Green Flashing Link Port Disabled Green Link No activity Yellow Flashing Link Port Enabled Activity The functions of the INB transmit LED are listed in Table 4 3 Table 4 3 INB Transmit LED LED Color State Red No Link Green Flashing Link Port Enabled Activity Yellow Flashing Link Bridge Standby Off Link No activity 4 3 LANVIEW LEDs The functions of the Token Ring Port rece
12. ansparent TP frames Chapter 3 Operation The 9T425 16 9T427 16 and 9T428 16 SmartSwitch 9000 Modules provide connectivity between the front panel Token Rings and the INB2 backplane SmartSwitch 9000 modules connect to either the Internal Network Bus INB or the Flexible Network Bus FNB bus The 9T425 16 9T427 16 and 9T428 16 modules connect only to the INB2 bus Switching may occur between the sixteen front panel ports and or to any other SmartSwitch 9000 module via the INB2 Bus As shown in the block diagram in Figure 3 1 the Token Ring Network Interface Blocks TNIBs convert data packets received from any of the ports into a canonical frame format before forwarding to the SmartSwitch 9000 ASIC while the Internal Network Bus Network Interface Block INB NIB converts data cells received from the INB into a canonical format before forwarding to the SmartSwitch 9000 ASIC Operation TNIB DC DC Convertor i960 Cae Processor Controtier Switch ASIC Figure 3 1 9T425 16 9T427 16 and 9T428 16 Block Diagram All data packets destined for a front panel port the INB or the i960 are converted into the canonical format before forwarding to the SmartSwitch 9000 ASIC Network Interface Blocks NIBs check for valid data packets entering the system If an errored data packet is found the SmartSwitch 9000 ASIC flags the error and does not forward the errored data packet to any outbound ports Once in this common for
13. ce Route Translational Switching Allows both transparent TP and Source Route SR packets to be forwarded SR packets are translated to TP the Route Information Field RIF is stripped and cached on each front panel port inbound SR Outbound packets are automatically reverse translated by appending RIF data from the RIF cache into the packets before transmission Management Information Base MIB Support The 9T425 16 9T427 16 and 9T428 16 modules provide MIB support including IETF MIB II RFC 1213 IETF RMON MIB RFC 1757 and 1513 IETF Bridge MIBs RFC 1493 and 1525 IEEE 802 5 Token Ring MIB RFC 1748 IEEE DTR MAC MIB Cabletron Enterprise MIBs For a complete list of supported MIBs refer to the release notes provided in the module package LANVIEW LEDs The 9T425 16 9T427 16 and 9T428 16 use LANVIEW the Cabletron Systems built in visual diagnostic and status monitoring system With LANVIEW LEDs you can quickly identify the device port and physical layer status at a glance Hot Swapping The 9T425 16 9T427 16 and 9T428 16 can be installed or removed from the chassis while the SmartSwitch 9000 is powered up without affecting the operation of the remaining modules in the chassis RMON Five RMON groups are supported in the 9T425 16 9T 427 16 and 9T428 16 Statistics History Alarms Events and Token Ring Broadcast Thresholds The 9T425 16 9T427 16 and 9T428 16 contain broadcasts in the event of a broadcast stor
14. details the front panel cabling for the 9T425 16 9T427 16 and 9T428 16 modules The 9T425 16 and 9T427 16 Modules This section shows the pin outs for wiring cable to the front panel RJ45 connectors Station Port Pins Figure 2 4 illustrates the signal assignments for RJ45 station port pins Cable Shield Tx Rx Rx TX Cable Shield Figure 2 4 RJ45 Station Port Pins Signal Assignments Installation Lobe Port Pins Figure 2 5 illustrates the signal assignments for RJ45 lobe port pins Cable Shield Rx TX Tx Rx Cable Shield Figure 2 5 RJ45 Lobe Port Pins Signal Assignments The 9T428 16 Module Table 2 2 lists signal tolerance specifications for the Multimode Fiber Optic cable used for front panel connections Table 2 2 Signal Tolerances for Multimode Fiber Optic Cable Cable Type Attenuation Maximum Drive Distance Multimode 50 125 um lt 13 0 dB 2 km 2187 7 yards Multimode 62 5 125 um lt 16 0 dB 2 km 2187 7 yards Multimode 100 140 um lt 19 0 dB 2 km 2187 7 yards Typical Signal Attenuation Rate lt 1 5 dB km The Fiber Optic cable segments have ST connectors They are connected by inserting the connector in the port and then turning it to lock down The Receive port of one device is connected to the Transmit port of the other device as shown in Figure 2 6 2 7 I
15. e Translational Switching In SR Source Routing and SRT Source Route and Transparent modes the received SR packets are stripped of their RIF during the translation to canonical frame format Packets that are queued for transmission out the Token Ring port can have a RIF inserted from the RIF cache or can be sent without the RIF as a TP packet This decision is automated when the port is set to SRT and is handled on a packet by packet basis SRT Switching operates much the same as TP Switching but strips the RIFs and caches them locally Frames transmitted out the Token Ring ports have RIFs appended to them from the cache SR operates by transmitting frames over a designated route Unlike Transparent Bridging all devices in a Source Route Bridged SRB network know the locations of other stations within the network Using the RIF portion of the MAC frame header the source device determines the route for the frames it sends In order for source routing to work the source station must determine the proper route to reach the desired destination To accomplish this 1 The source station sends out frames called All Route Explorer ARE or Spanning Tree Explorer STE frames onto the network All Source Route Bridges recognize these frames and forwards them to their outbound ports 2 The receiving bridges insert their own route information to the RIF in the MAC frame header and transmit the frame again 3 Eventually the original
16. ement User s Guide Introduction Getting Help For additional support related to this device or document contact Cabletron Systems using one of the following methods World Wide Web http www cabletron com Phone 603 332 9400 Internet mail support cabletron com FTP ftp fto cabletron com Login anonymous Password your email address To send comments or suggestions concerning this document contact the Cabletron Systems Technical Writing Department via the following email address TechWritingQcabletron com Make sure to include the document Part Number in the email message Before calling Cabletron Systems have the following information ready Your Cabletron Systems service contract number A description of the failure A description of any action s already taken to resolve the problem e g changing mode switches rebooting the unit etc The serial and revision numbers of all involved Cabletron Systems products in the network A description of your network environment layout cable type etc Network load and frame size at the time of trouble if known The device history i e have you returned the device before is this a recurring problem etc Any previous Return Material Authorization RMA numbers Introduction 1 6 Chapter 2 Installation Installing the SmartSwitch 9000 Module The SmartSwitch 9000 module may be installed into any two available slots To install foll
17. ive LEDs are listed in Table 4 4 Table 4 4 Token Ring Receive LEDs LED Color State Green Insert No activity Port Enabled Yellow Flashing Insert Activity Port Enabled Flashing rate indicates rate of activity Off No Insert No activity The functions of the Token Ring Port transmit LEDs are listed in Table 4 5 Table 4 5 Token Ring Transmit LEDs LED Color State Red Flashing Fault or Error Ring is Beaconing Green Flashing Activity Flashing rate indicates rate of activity Yellow Flashing Port in standby state Off No activity The functions of the Station Mode LEDs are listed in Table 4 6 Table 4 6 Station Mode STN LEDs 9T425 16 8 9T427 16 LED Color State Green Port Configured for Station Emulation Default Off Port Configured as a Lobe TCU Port for Direct Attach Station Connections 4 4 LANVIEW LEDs Table 4 7 Mode LEDs 9T428 16 Only LED Color State Green Port is Configured as Station Emulation STN or Ring In RI default using 802 5 keying Yellow Port is Configured as Cabletron Ring In Ring Out RI RO using Cabletron keying Off Port is Configured as Lobe Port Trunk Coupling Unit TCU using 802 5 keying The Port Speed LEDs show a combination of Ring Speed and Access Protocol in use The functions of the Port speed LEDs are listed in Table 4 8 Table 4 8 Port Speed LEDs
18. m Introduction SFVLAN SecureFast Virtual LANS The 9T425 16 9T427 16 and 9T428 16 allow connection orientated Switched Virtual Circuits SVC Protocol Translations The 9T425 16 9T427 16 and 9T428 16 allow any to any connectivity for IPX IP SNA Netbios Appletalk protocols between Token Ring and Ethernet FDDI and Fast Ethernet devices Dedicated Token Ring Auto TXI or TKP Modes The 9T425 16 9T427 16 and 9T428 16 can operate in either TXI Transmit Immediate a k a Full Duplex or TKP Token Passing a k a Standard modes TXT is tried first If this is incompatible with other products on the ring TKP mode is used Auto MTU Size If the user changes the ring speed The MTU is automatically set to the maximum size for that speed The maximum allowable MTU is 8130 bytes 16 Mbps or 4500 bytes 4 Mbps The user may set the MTU to a smaller size if desired Auto Ring Number Detection The 9T425 16 9T427 16 and 9T428 16 set the Ring Number automatically to match the current number in use on the ring segment May be toggled off The default setting is enabled Related Manuals The manuals listed below should be used to supplement the procedures and technical data contained in this manual SmartSwitch 9000 Installation Guide SmartSwitch 9000 Operations Guide SmartSwitch 9000 9C300 1 Environmental Module User s Guide SmartSwitch 9000 9C214 1 AC Power Supply User s Guide SmartSwitch 9000 Local Manag
19. mat the SmartSwitch 9000 ASIC decides from header information the port destination of data packets Data packets are then converted from the canonical format to the proper format for the interface destination whether it is a front panel port or connection to the INB The Token Ring Network Interface Block TNIB converts Token Ring data packets received through front panel ports into a common canonical format that allows the SmartSwitch 9000 ASIC Engine to determine the proper destination port The TNIB also converts data packets from the common canonical format back to Token Ring packets for transmission out front panel ports Operation Switching The 9T425 16 9T427 16 and 9T428 16 operate as a Source Route Translational SR TB switch They provide translation to transparent frames For information on configuring the switching function see the addendum to the SmartSwitch 9000 Local Management User s Guide containing information specific to this model All SR Source Route and TP Transparent frames are translated to canonical frames even between ports on the front panel The RIFs Routing Information Field of SR frames are cached on each port In Traditional Bridging mode all canonical frames are forwarded based on a destination address RIF information is not used in the decision to forward frames The Token Ring ports on the 9T425 16 9T427 16 and 9T428 16 are configurable for three modes of operation TP Transparen
20. mposed of a Z 80 microprocessor and its supporting logic The diagnostic controller is designed to control the power up sequencing of modules monitor the 9T425 16 9T427 16 and 9T428 16 input and output power parameters keep watch over the main host processor as well as monitor the temperature and control the SMB LANVIEW diagnostic LED Although the diagnostic controller and the main host processor can operate independent of each other if needed they exchange information about each other s status and overall module condition The information gathered by the diagnostic controller is available to the network manager via local remote management and the LCD located on the environment module The 9T425 16 9T427 16 and 9T428 16 have been designed so that in the event of a diagnostic controller fault the modules will continue to function DC DC Converter The DC DC converter converts the 48 VDC on the system power bus to the necessary operating voltages for its host network services module The diagnostic controller controls the operation of the DC DC converter INB NIB Each module that attaches to the Internal Network Bus INB has an INB Network Interface Block NIB The INB NIB converts canonical frames to fixed length data blocks for transmission onto the INB For data blocks received from the INB the INB NIB reassembles the data blocks received from the INB back into canonical frames for transmission to the SmartSwitch 9000 ASIC then from
21. n the card guides Check both the upper and lower tracks of both cards Installation Receptacle for ESD wrist strap Metal Back Panel Circuit Card Card Guides Warning Ensure that the circuit card is between the card guides Lock down the top and bottom plastic tabs at the same time applying even pressure Figure 2 1 Installing the SmartSwitch 9000 Module 22 Installation The Reset Switch The Reset switch is located on the front panel under the top plastic tab as shown in Figure 2 2 It serves two functions e Pressing the reset switch twice within three seconds causes the processor i960 to reset e Pressing and holding the switch for three or more seconds causes the module to shutdown Pressing and holding the switch again for three seconds restarts the module SNMP management may be used to disable this switch to enhance module security Reset Switch oet SMB O Ocpu Figure 2 2 The Reset Switch 2 3 Installation Setting the Module Card DIP Switch An eight position DIP switch is located just under the edge of the top module card as shown in Figure 2 3 The functions of the switch are listed in Table 2 1 NJ CFE Ee Figure 2 3 Location of Module DIP Switch Installation See the Cautions at the end of this table Table
22. nitor telnet and network address to MAC address mapping are also provided by the i960 core The Host Engine sends and receives packets via the CPU SmartSwitch 9000 ASIC Interface This allows the traditional switch to perform spanning tree protocol and other traditional switching functions The SMB Interfaces provide communication to the Host Engine for management functions and communication with other modules in the chassis Operation 3 8 Chapter 4 LANVIEW LEDs The front panel LANVIEW LEDs shown in Figure 4 1 indicate the status of the module and may be used as an aid in troubleshooting Token Ring Port Transmit System Status Token Ring Port Receive INB Transmit Station Mode INB Receive Port Mode Port Speed Figure 4 1 LANVIEW LEDs LANVIEW LEDs The 9T427 16 also has a front panel mode switch shown in Figure 4 2 that changes the functions of the LEDs p Status sue O O cru INB NE B INB Transmit desse de Transmit TX m Receive RX NS Mode Switch in LEFT Position je se dee ede dee dese dese STN Mb s Speed Status Mode Switch in RIGHT Position d o e a LED functions when LED MODE switch is in the RX
23. nstallation sm O cru TX Port oe oo uo AE To TX Port on Other Ring oe To RX Port on Other Ring MODE d dives Move wos Figure 2 6 Connecting Fiber Optic cable to the 9T428 16 Recommended Cable Lengths The IEEE 802 5 specification does not specify a minimum lobe length in meters that a Token Ring station must meet Rather the standard specifies Cable Attenuation Signal to Crosstalk Noise Ratio SCNR and a Next Loss to Insertion Loss Ratio NIR which must be met This method of specification allows maximum flexibility when constructing a cabling system however it can be very complicated to the end user unfamiliar with these terms Therefore the following cabling guidelines are recommended These recommendations are conservative to provide a problem free environment to the end user Longer lengths are achievable with good cable plants Table 2 3 and Table 2 4 list the recommended cable lengths for Station cables Table 2 5 lists the recommended cable lengths for Lobe cables Installation Table 2 3 16 MBPS Station Mode 9T425 16 9T427 16 Cable Type Passive MAU Active MAU meters meters Category 3 UTP 55 100 Category 4 5 UTP 100 180 Type 1 STP 200 300 Table 2 4 4 MBPS Station Mode 9T425 16 9T427 16 Cable Type Passive MAU Active MAU meters meters Category 3 UTP 150 250 Category 4 5 UTP 250 350 Type 1 STP 300 500 Table 2 5
24. on The 9T425 16 9T427 16 and 9T428 16 Token Ring SmartSwitch 9000 Modules are Enterprise Backbone switches supporting Smart Networking Services RMON per port and Dedicated Token Ring The 9T425 16 9T427 16 and 9T428 16 modules shown in Figure 1 1 provide sixteen ports either UTP or STP for the 9T425 16 and 9T427 16 or multimode fiber for the 9T428 16 Combined with its connection to the INB2 backplane this provides for up to 112 or 224 separate Token Ring segments to be interconnected within a single SmartSwitch 9000 chassis Features Processor The 9T425 16 9T427 16 and 9T428 16 are equipped with an advanced Intel i960 microprocessor This microprocessor provides a platform for all management functions within a scalable RISC based architecture SmartSwitch 9000 ASIC Distributed Switching These modules provide the fastest Switching fabric available at 750 Kpps Each module contains its own switch fabric eliminating central board Single Point of Failure System Management As with most SmartSwitch 9000 modules the 9T425 16 9T427 16 and 9T428 16 interface to the two System Management Buses SMB 1 and SMB 10 for intermodule management Connectivity The 9T425 16 9T427 16 and 9T428 16 provide sixteen front panel C ports allowing direct station attachment or station emulation for hub connections STP and UTP cables are supported by the 9T425 16 and 9T427 16 and multimode fiber is supported by the 9T428 16 1 1
25. out of band management and inter module management communication SMB 1 Bus The SMB 1 is a 1Mbs management bus located within the SmartSwitch 9000 This bus is utilized by all diagnostic controllers in the system including connectivity modules power supply modules and the environmental module The SMB 1 transports inter chassis information between system components such as power and environmental information as well as diagnostic messages Periodic loop back tests are performed by all modules which share this bus to ensure the validity of SMB 1 In the event a failure is detected on SMB 1 the SMB 10 may be used as an alternate communication channel SMB 10 Bus The SMB 10 is a 10Mbs management bus located within the SmartSwitch 9000 which is also used for inter chassis communication of modules as well as serving as an out of band management channel into the SmartSwitch 9000 The SMB 10 is externalized from the chassis via an optional Ethernet Port Interface Module EPIM located on the front of the Environmental Module Through an EPIM connection full SNMP management of the SmartSwitch 9000 is available out of band from user data Modules which share the SMB 10 bus periodically send out loop back packets to ensure the validity of SMB 10 In the event a fault is detected on the SMB 10 the SMB 1 can be used as an alternate communication channel by the modules Operation System Diagnostic Controller This diagnostic controller is co
26. ow the steps below The INB Terminator Modules must be installed on the rear of the fourteen slot chassis before powering up this module The INB Terminator Modules are not required on the six slot chassis Refer to the INB Terminator Modules Installation Guide for information and installation procedure 1 Remove the blank panels covering the slots that the module is being mounted in All other slots must be covered if modules are not being installed to ensure proper airflow and cooling 2 Carefully remove the module from the shipping box Save the box and packing materials in the event the module must be reshipped 3 Attach one end of the ESD wrist strap packaged with the SmartSwitch 9000 chassis to your wrist Plug the other end into the ESD Wrist Strap Grounding receptacle in the lower right corner of the SmartSwitch 9000 Chassis shown in Figure 2 1 4 Remove the module from the plastic bag Observe all precautions to prevent damage from Electrostatic Discharge ESD 5 Carefully examine the module checking for shipping damage If any damage exists DO NOT install the module Contact Cabletron Systems Technical Support immediately 6 The module is installed into the chassis by sliding it into a pair of slots and locking down both pairs of top and bottom plastic tabs as shown in Figure 2 1 Take care that the module slides in straight and engages the backplane connectors properly Ensure that both circuit cards are betwee
27. t ports receive Source Route and Transparent frames but transmit only packets that are Transparent SR Source Routing ports receive and transmit only packets that are Source Route SRT Source Route and Transparent ports receive and transmit both Source Route and Transparent packets Transparent Switching Transparent Switching is accomplished by building a Source Address Table SAT from source MAC physical addresses and using the SAT to make forwarding decisions The 9T425 16 9T427 16 and 9T428 16 prevent unnecessary network traffic from passing through the module by implementing the IEEE 802 1d filtering process The IEEE 802 1d filtering process begins with the creation of a list of local node addresses in a table the SAT When the 9T425 16 9T427 16 and 9T428 16 first go on line they initially forward all packets across the bridge After receiving a packet on the bridge port the 9T425 16 9T427 16 and 9T428 16 learn the address of the sending node from the packet and stores that address in the SAT In this manner the bridge learns the address of each node on each side of the bridge The bridge then uses the addresses stored in the table to compare the destination address of each subsequent packet that travels to the bridge If the destination address of a packet resides on the bridge segment the 9T425 16 9T427 16 and 9T428 16 does not forward across the Token Ring link Operation Source Route and Source Rout
28. ted Martial o caido 1 4 Getting FEP zaw Rai OI OO AO A OO leia 1 5 Chapter 2 Installation Installing the SmartSwitch 9000 Module tc 2 1 TheRESELSWIK au as o pat Da a ng 2 3 Setting the Module Card DIP Switch ari ea 2 4 Front Panel Gabling soins etae A A A AO 2 6 The 9T425 T6 and 9 1427 T6 Modules 2 6 Station Port PINS sno ees ed seines 2 6 lobe Port Fi ska nai apro S aS DW oka ona Ea 2 7 The 9728 16 MOdUIG sans an 2 7 Recommended Cable Lengths ns 2 8 Detalla ad ea ER Rare ser a Eng 2 10 Chapter 3 Operation IND ya ee eine i Nested Ra 3 2 WICIE re ee ee 33 Transparent Switches 2 ii 3 3 Source Route and Source Route Translational Switching sss 3 4 Spanning Tree Algorithm TEEE 8021 saa awa a alta 3 4 System Management BUSS nieostre eeose ee asete nennen nennen nennt 3 5 SMD LDUS a nee R A eh 3 5 SMB TUUS paco iet ne OK Gr CH quc Aa met ORG CEA OO 3 5 System Diagnostic Controller nissin kai eirese iein 3 6 BEIDE Converter bad c eee dos SOMA A R AAAA e Da Da 3 6 INB NIB ua ee A E ORA ORO ak AR W 3 6 Sec re Fast Swilch a O A O ee an 3 6 1960 COLE zwiad ia Dile A do NEISSE 3 7 Chapter 4 LANVIEW LEDs Notice Chapter 5 vi Specifications safety zawo ndo deen ai fiis KONAR OW tte eo esate Saia EEE sb W 5 1 OO 5 1 Physiol asien 5 2 DIMAS Si a sales 5 2 iiia E 5 2 Electrical zna N A ANA A 5 2 Standards dessas A LA TEA 5 2 Port Interfaces eei oie 5 2 Chapter 1 Introducti
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