Assigning A Sequence To A Specific Lre Port; Using Rate Selection To Automatically Assign Profiles - Cisco 2950 - Catalyst Switch Configuration Manual

Configuring LRE Ports
To display the LRE link statistics and sequence information on the LRE ports, use the show controllers
lre status sequence details privileged EXEC command.

Assigning a Sequence to a Specific LRE Port

You can set sequences on a per-port basis. You can assign the same sequence or different sequences to
the LRE ports on the switch. If you assign a sequence on a per-port basis, it overrides any previously or
subsequently set profiles or global sequence.
The switch resets the ports with the updated sequence settings when they are changed.
Beginning in privileged EXEC mode, follow these steps to assign a sequence to a specific LRE port:
Command
Step 1 configure terminal
Step 2
interface interface-id
Step 3
sequence sequence-name
Step 4
end
Step 5 show controllers lre status sequence Verify the change.
Step 6
copy running-config startup-config
To remove a sequence from a port, use the no sequence sequence-name interface configuration
command.
To display the LRE link statistics and sequence information on the LRE ports, use the show controllers
lre status sequence details privileged EXEC command.

Using Rate Selection to Automatically Assign Profiles

An LRE network requires a profile to be configured for each LRE port that is connected to a CPE device.
The default is LRE-10 on the Catalyst 2950ST-8 LRE and 2950ST-24 LRE switches and LRE-6 on the
Catalyst 2950ST-24 LRE 997 switch. You can use the rate selection feature to automatically choose a
profile from a set of profiles that the switch port uses to establish an LRE link (a link between an LRE
switch port and an attached CPE device).
Rate selection is enabled by default, but you must choose a sequence for rate selection to start (in other
words, there is no default sequence defined). When rate selection is running, the switch chooses the
profile for the LRE interface from a sequence, or predefined series of profiles, that are configured for
that interface. The rate-selection algorithm begins with the first profile in the sequence and successively
tries the next profiles (in descending order) until a link is established with the CPE device.
When rate selection is enabled, the LRE switch executes rate selection in these scenarios:
•
•
•
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
13-14
Purpose
Enter global configuration mode.
Enter the number of the LRE port to be configured, and enter interface
configuration mode.
Enter the port sequence name (select from the list in
page 13-5
Return to privileged EXEC mode.
(Optional) Save your entries in the configuration file.
When the switch is started up
When you enable the rate selection feature
When you connect a new CPE device to the switch
or Table 13-4 on page 13-6).
Chapter 13 Configuring LRE
Table 13-3 on
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