Assigning A Sequence To A Specific Lre Port; Using Rate Selection To Automatically Assign Profiles - Cisco 2950G 24 - Catalyst Switch Software Configuration Manual

Configuring LRE Ports

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 port basis, it overrides any previously or
subsequently set profiles or global sequence.
The switch resets the ports with the updated sequence settings when 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 LRE-interface
Step 3
sequence sequence_name
Step 4 end
Step 5 show controllers lre status sequence Verify the change.
Use the show controllers lre status sequence details privileged EXEC command to display the LRE
link statistics and sequence information on the LRE ports. For information about these commands, refer
to the switch command reference.

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). 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 enabled, the LRE switch executes rate selection in these scenarios:
•
•
•
•
•
Catalyst 2950 Desktop Switch Software Configuration Guide
10-10
Purpose
Enter global configuration mode.
Enter interface configuration mode, and enter the number of the LRE port
to be configured.
Enter the port sequence name (select from the list in
Return to privileged EXEC mode.
When the switch is booted
When you enable the rate selection feature
When you connect a new CPE device to the switch
When a link is lost for 25 seconds before being restored
When a configured sequence is modified
Chapter 10 Configuring LRE
Table 10-2).
78-14982-01