Configuring Lre Link Persistence - Cisco Catalyst 2950 Software Configuration Manual

Chapter 12 Configuring LRE
Beginning in privileged EXEC mode, follow these steps to assign a margin to a specific LRE port:
Command
Step 1 configure terminal
Step 2 interface interface-id
Step 3
margin {downstream value | upstream value} Enter the downstream or upstream margin value (in dB). For the
Step 4
end
Step 5 show controllers lre profile details
Step 6 copy running-config startup-config
To return to the default values, use the no margin {downstream | upstream} interface configuration
command.
Note The margin command is effective with any profile, but only with rate selection and only when a link is
being activated.

Configuring LRE Link Persistence

If the LRE link shuts down and is automatically re-enabled quickly, the switch configuration might
change. For example, the dynamic MAC addresses are removed from the MAC address table. You can
use the link persistence feature to configure a delay duration on the Catalyst 2950 LRE switch of up to
20 seconds before link failure is reported.
Beginning in privileged EXEC mode, follow these steps to set the delay duration on a specific LRE port:
Command
Step 1 configure terminal
Step 2 interface interface-id
Step 3 persistence delay
Step 4 end
Step 5
show controllers lre status persistence
Step 6 copy running-config startup-config
To return to the default value, use the no persistence interface configuration command.
78-11380-12
Purpose
Enter global configuration mode.
Enter the number of the LRE port to be configured, and enter
interface configuration mode.
values, see Table 12-6 on page
Table 12-8 on page 12-18, and
Return to privileged EXEC mode.
Verify the change.
(Optional) Save your entries in the configuration file.
Purpose
Enter global configuration mode.
Specify the LRE port to be configured, and enter interface
configuration mode.
Enter the length of time (in seconds) for the delay duration. The
default is 3 seconds. The range is 1 to 20 seconds.
Return to privileged EXEC mode.
Verify the change.
(Optional) Save your entries in the configuration file.
Catalyst 2950 and Catalyst 2955 Switch Software Configuration Guide
Configuring LRE Ports
12-16, Table 12-7 on page
Table 12-9 on page 12-18.
12-17,
12-19