Command or Action
Purpose
Step 3
Repeat Steps 1 and 2 for all LES/BUSs you want to
configure on the ATM module.
Step 4
ATM(config-if)# exit
Exits interface configuration mode.
Step 5
ATM# copy running-config startup-config
Saves the configuration.
If the ELAN specified in Step 2 is intended to have restricted membership in the LECS database , carefully
consider whether or not you want to specify its name here. You will specify the name in the LECS database
when it is set up. However, if you link the client to an ELAN in this step, and through some mistake it does
not match the database entry linking the client to an ELAN, this client will not be allowed to join this
ELAN or any other.
If you do decide to include the name of the ELAN linked to the client in Step 2 and later want to associate
that client with a different ELAN, make the change in the LECS’s database before you make the change for
the client on this subinterface.
Setting Up a LEC for an ELAN
This section describes the following tasks for setting up a LEC:
•
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
Guidelines for Setting Up a LEC
The Catalyst 5000 series Token Ring LANE requires the following software:
•
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.
When you set up a LEC, follow these rules and recommendations:
•
Make sure you properly configure the LECS and LES/BUS using the ATM module command-line
interface (CLI) for each VLAN before creating a LEC. VTP does not set up the LECS or LES/BUS.
•
In the set vlan interface configuration command, the vlan_num argument represents the VLAN
number to configure, and the vlan_name argument is the name of the VLAN.
•
The VLAN name must match the ELAN name and the ring number must match the local segment ID.
The set vlan interface configuration command assumes that any ring number you enter is in hexadecimal.
Therefore, 0x12 or 12 is stored as the hexadecimal value 0x12. The name elan_name local-seg-id
segment_numberLANE database configuration command assumes that any value you enter for the local-
seg-id keyword is in decimal unless you enter it explicitly in hexadecimal. For example, to define a TrCRF
with a ring number of 12 you could enter the set vlan 12 name crf12 type trcrf ring 12 parent 100
Setting Up a LES BUS and a LEC
Setting Up a LEC for an ELAN
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