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example shows an LECS database configuration that specifies marktng as the ELAN name for VLAN
1003:

lane database test
name marktng server-atm-address 47.0091810000000061705B8301.00400B020011.01
!
interface ATM0
no ip address
no ip route-cache
atm pvc 1 0 5 qsaal
atm pvc 2 0 16 ilmi
lane config auto-config-atm-address
lane config database test
!
interface ATM0.1 multipoint
no ip route-cache
lane server-bus tokenring marktng
lane client tokenring 1003 marktng

You must change the ELAN name for VLAN 1003 from marktng to trcrf-default in the second and last
lines of the display, as follows:

lane database test
name default server-atm-address 47.0091810000000061705B8301.00400B020011.01
!
interface ATM0
no ip address
no ip route-cache
atm pvc 1 0 5 qsaal
atm pvc 2 0 16 ilmi
lane config auto-config-atm-address
lane config database test
!
interface ATM0.1 multipoint
no ip route-cache
lane server-bus tokenring default
lane client tokenring 1003 trcrf-default

Creating a Token Ring VLAN

With Token Ring, to successfully route packets between ELANs, you can only set up one LEC for each
TrBRF on an ATM module. For multiple ELANs with the same TrBRF to route packets, they must be
configured on either separate ATM modules or connected via an external device.

If the TrBRF and TrCRF for which you are creating a LEC do not already exist, create the Token Ring
VLANs by using the following commands beginning in privileged EXEC mode:

SUMMARY STEPS

1.

Console> (enable) set vlanvlan_num [namename ] type trbrf [state {active | suspend}] [mtumtu ]
bridgebridge_number [stp {ieee | ibm | auto}]

2.

Console> (enable) set vlanvlan_num [namename ] type trcrf [state {active | suspend}] [mtumtu ]
ringring_numberparentvlan_num [mode {srt | srb}] [backupcrf {off | on}] [aremaxhophopcount ]
[stemaxhophopcount ]

Setting Up a LES BUS and a LEC

Creating a Token Ring VLAN

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Содержание Catalyst 5000 Series

Страница 1: ...rence master index or search online Finding Feature Information page 1 Token Ring LANE on ATM page 2 Network Support page 3 Restrictions page 4 Prerequisites page 5 Token Ring LANE Configuration Task List page 6 Token Ring LANE Configuration Example page 28 Finding Feature Information Your software release may not support all the features documented in this module For the latest caveats and featur...

Страница 2: ...s on the network With Token Ring LANE routers and switches emulate the connectionless service of a Token Ring LAN for the end stations By using Token Ring LANE you can scale your networks to larger sizes while preserving your investment in LAN technology Note The Catalyst 5000 series Cisco IOS Token Ring LANE software does not support Ethernet LANE or RFC 1483 permanent virtual connections PVCs LA...

Страница 3: ...ion Cisco has developed a fault tolerant mechanism known as Simple Server Redundancy Protocol SSRP that eliminates these single points of failure Although there is only one LES per ELAN SSRP allows you to configure redundant servers You can configure servers to act as backup servers that become active if a master server fails The priority levels for the servers determine which servers have precede...

Страница 4: ...te more than one LEC for each Token Ring Bridge Relay Function TrBRF in each ATM module While you can have only one LEC for each TrBRF in each module you can have more than one module installed These additional modules allow you to have more than one LEC per TrBRF which means the module can participate in more than one ELAN The ELANs however cannot be parallel or the Spanning Tree Protocol will bl...

Страница 5: ...rum is used The LECS to be used can be overridden on any subinterface by entering the following command lane config atm address atm address template Note To avoid affecting the LES BUS or LEC redundancy do not override any LECS LES or BUS addresses In an underlying ATM network failure there can be multiple master LECS and multiple active LESs or BUSs for the same ELAN resulting in a partitioned ne...

Страница 6: ...t LANE Opening a Session from the Switch to the ATM Module page 6 Creating a LANE Plan and Worksheet page 7 Configuring the ATM Module from the Terminal page 8 Configuring the ATM Module from NVRAM page 9 Configuring the Prefix on the LightStream 1010 Switch page 9 Setting Up the Signalling PVC page 10 Displaying LANE Default Addresses page 11 Entering the LECS ATM Address on the LightStream 1010 ...

Страница 7: ...other words comments do not appear when you list the active configuration with the write terminal EXEC command or list the configuration in NVRAM with the show configuration EXEC command Comments are stripped out of the configuration file when it is loaded to the ATM module Creating a LANE Plan and Worksheet Before you begin to configure Token Ring LANE you must decide whether you want to set up o...

Страница 8: ...ue LANE components No LECS database is configured No LES BUS is configured No LECs are configured PVCs ILMI and signalling PVCs are set up Preferred PHY Dual PHY modules only PHY A Output throttling Disabled ILMI keepalives Disabled UNI version Autonegotiate reverts to UNI 3 0 if autonegotiation fails VTP Disabled Configuring the ATM Module from the Terminal To configure the ATM module from the te...

Страница 9: ... current configuration information in text format as configuration commands recording only nondefault settings The ATM module software performs a memory checksum to guard against corrupted data As part of its startup sequence the ATM module startup software always checks for configuration information in NVRAM If NVRAM holds valid configuration commands the ATM module executes the commands automati...

Страница 10: ...ddress prefix Sets the local node ID prefix of the ATM address Step 2 Switch config exit Exits global configuration mode Step 3 Switch copy running config startup config Saves the configuration values permanently Setting Up the Signalling PVC You must set up the signalling PVC and the PVC that will communicate with the ILMI on the major ATM interface of any Catalyst 5000 series switch that partici...

Страница 11: ...number Displays the LANE default addresses Entering the LECS ATM Address on the LightStream 1010 Switch You must enter the LECS ATM address into each ATM switch such as a Cisco LightStream 1010 ATM switch connected to an ATM module in your LANE network and save the address permanently so that the value will not be lost when the switch is reset or powered off Programming the LECS addresses allows t...

Страница 12: ...n setting up the LECS database remember that the following are requirements when configuring LECs The VLAN name must match the ELAN name The ring number defined when configuring the VLAN must match the local segment ID The set vlan interface configuration command assumes that any ring number you enter is in hexadecimal Therefore 12 is stored as the hexadecimal value 0x12 The name elan_name local s...

Страница 13: ...ter on in this chapter To set up the LECS for a default ELAN use the following commands beginning in global configuration mode SUMMARY STEPS 1 ATM config lane databasedatabase name 2 ATM lane config database nameelan nameserver atm addressatm address index n 3 ATM lane config database nameelan namelocal seg idsegment number 4 ATM lane config database default nameelan name 5 ATM lane config databas...

Страница 14: ... membership ELANs in the LECS database you create database entries that link the name of each ELAN to the ATM address of its LES BUS However you may choose not to specify where the LECs are located That is when you set up the LECS s database you do not have to provide any database entries that link the ATM addresses or MAC addresses of any clients with the ELAN name The LECS assigns the clients to...

Страница 15: ... hexadecimal Step 5 ATM lane config database nameelan name2local seg idsegment number Assigns a segment number to the second emulated Token Ring LAN in the configuration database The segment number you specify for local seg id must be identical to the ring number of the TrCRF The set vlancommand assumes that any ring number you enter is in hexadecimal The name elan name local seg id segment number...

Страница 16: ...database configuration mode for the LANE database that you specify Step 2 ATM lane config database nameelan name1server atm addressatm address restricted index n Binds the name of the first ELAN to the ATM address of the LES BUS for that ELAN in the configuration database If you are configuring SSRP repeat this step with the same ELAN name but with different server ATM addresses for each additiona...

Страница 17: ...ent s ATM address and the name of the ELAN with which it is linked Step 7 ATM lane config database exit Exits from database configuration mode and returns to global configuration mode Binding the LECS to the ATM Interface Once you have created the database entries as appropriate to the type and the membership conditions of the ELANs to enable the LECS on the selected ATM interface and switch use t...

Страница 18: ...clients and servers are located perform one of the following tasks for each LANE subinterface Setting Up the LES BUS for an ELAN page 18 Setting Up a LEC for an ELAN page 19 Guidelines for Setting Up a LEC page 19 Creating a Token Ring VLAN page 21 Setting Up the Token Ring VLAN on a LEC page 22 Setting Up the LES BUS for an ELAN To set up the LES BUS for an ELAN use the following commands beginni...

Страница 19: ...Catalyst 5000 series supervisor engine software Release 4 3 1a and later ATM software Release 4 9 b and later VTP Version 2 Note While VTP version 2 must be enabled on a Catalyst 5000 for Token Ring to function do not use VTP to distribute VLAN configuration information between the switches Configure the switches to operate in VTP transparent mode and manually configure the VLANs on each switch Wh...

Страница 20: ...ches Do not create more than one LEC for each TrCRF per ATM module A TrCRF can include only one enabled LEC from any ATM module An ATM module LEC is assigned to a TrCRF to provide connectivity to the ATM network In this sense an ATM module is a logical port within the TrCRF When assigning enabled LECs to TrCRFs the enabled LECs of any one ATM expansion module should each be assigned to different T...

Страница 21: ...tm address lane config database test interface ATM0 1 multipoint no ip route cache lane server bus tokenring default lane client tokenring 1003 trcrf default Creating a Token Ring VLAN With Token Ring to successfully route packets between ELANs you can only set up one LEC for each TrBRF on an ATM module For multiple ELANs with the same TrBRF to route packets they must be configured on either separ...

Страница 22: ... interface configuration mode Step 2 ATM config if lane client tokenring vlan_id elan name1 Creates a LEC for the first ELAN and specifies the VLAN number and the ELAN name to which to bind the LEC Step 3 ATM config if exit Exits configuration mode Step 4 ATM config copy running config startup config Saves the configuration Configuring Redundant LANE Services The LANE protocol does not specify whe...

Страница 23: ...fter entering the LECS addresses LANE components connected to the switches can obtain the global list of LECS addresses Note To configure LES BUS and LECS redundancy you must enable multiple redundant and standby LECSs and multiple redundant and standby LES BUSs The LES BUS and LEC redundancy configuration procedure guards against failure on hardware on which LANE components are running including ...

Страница 24: ...e UNI version defaults to 3 0 You can override the version number by entering the atm uni version command If ILMI is enabled when you enter the no version of the command the UNI version is set to the version returned by ILMI and the link autodetermination is successful Otherwise the version reverts to 3 0 Enter the no atm uni version command to override the UNI version Note Each ELAN is a separate...

Страница 25: ...les FSSRP on the major interface Step 4 ATM config subif interface atm 0 subinterface number Specifies the subinterface for the first ELAN Step 5 ATM config subif lane server bus tokenringelan name Enables the LES BUS for an ELAN on the subinterface you cannot configure more than one LES BUS per subinterface Step 6 Repeat Steps 2 and 3 for all LES BUSs you want to configure on this ATM module Step...

Страница 26: ...l Enters global configuration mode Step 3 ATM config lane database database name Enters database configuration mode specifying a LANE database name Step 4 ATM lane config database name elan nameserver atm addressatm address Binds the name of the ELAN to the ATM addresses of the LES BUS pairs in the order you want the services to fail over Step 5 ATM lane config database default nameelan name In th...

Страница 27: ... component The selector byte is the same number as the subinterface converted to hexadecimal Enter the show lane EXEC command on each Catalyst 5000 series switch to verify the LANE setup before you set up the LECs on the next Catalyst 5000 series switch Print the display or make a note of these ATM addresses so that you can use it when you set up the LECS database At this point in the configuratio...

Страница 28: ... interface atm 0 subinterface number name elan name brief Displays the global and per VCC LANE information for the LES configured on a specified subinterface or ELAN Note For descriptions of the output displayed by the commands listed above see the description of the command documented in the Cisco IOS Switching Services Command Reference Token Ring LANE Configuration Example This section provides...

Страница 29: ...CRF 112 is brf400 VLAN ID 400 Configuring the TrCRF Example To define the TrCRF perform the following tasks SUMMARY STEPS 1 At the enable prompt enter the following command 2 To verify the configuration of the new VLAN enter the show vlancommand DETAILED STEPS Step 1 At the enable prompt enter the following command Example Console enable set vlan 112 name crf112 type trcrf ring 112 parent 400 mode...

Страница 30: ...Set up the LECS database on the Catalyst 5000 series switch 1 9 Save the configuration in NVRAM by entering the write memory command as follows 10 Start and bind the LECS on the Catalyst 5000 series switch 1 by entering the interface atm0 the lane config database database_name interface configuration command and the lane config auto config atm address interface configuration commands at the ATM pr...

Страница 31: ...display Example Switch enable Switch Switch configure terminal Enter configuration commands one per line End with CNTL Z Switch config atm lecs address default 47 0091810000000061705b7701 00400BFF0013 00 1 Switch config end Switch The commands shown in this step configure the address of the LECS in the switch The LECS ATM NSAP address is 47 0091810000000061705b7701 00400BFF0013 00 The sequence num...

Страница 32: ... id 0x112 ATM lane config database default name crf112 ATM lane config database exit ATM The commands shown in this step create the LECS database The database name is test The ELAN name is crf112 The ELAN segment number is 112 The LES ATM NSAP address is 47 0091810000000061705b7701 00400BFF0011 00 The segment number you specify for local seg id keyword must be identical to the ring number of the T...

Страница 33: ...M config subif end ATM Step 13 Save the configuration in NVRAM by entering the write memory command as follows Example ATM write memory Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and or its affiliates in the U S and other countries To view a list of Cisco trademarks go to this URL www cisco com go trademarks Third party trademarks mentioned are the property of their ...

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