Setting The Wait-To-Restore Timer; Setting The Guard Timer - Alcatel-Lucent OmniSwitch 6850-48 Network Configuration Manual

Configuring an ERP Ring
To remove the RPL node configuration for the specified ring, use the no form of the
command. For example:
-> no erp-ring 1 rpl-node
To verify the RPL node configuration for the switch, use the
about this command, see the OmniSwitch CLI Reference Guide.

Setting the Wait-to-Restore Timer

The wait-to-restore (WTR) timer determines the number of minutes the RPL owner waits before blocking
the RPL port after the ERP ring has recovered from a link failure.
By default, the WTR time is set to five minutes. To change the value of the WTR timer, use the
wait-to-restore command. For example:
-> erp-ring 1 wait-to-restore 6
The above command is only used on a switch that serves as the RPL node for the ERP ring. The specified
ERP ring ID must already exist in the switch configuration.
To restore the timer back to the default setting, use the no form of the erp-ring wait-to-restore command.
For example:
-> no erp-ring 1 wait-to-restore
To verify the WTR configuration, use the
see the OmniSwitch CLI Reference Guide.

Setting the Guard Timer

The guard timer is used to prevent the ring nodes from receiving outdated R-APS messages, which are no
longer relevant. Receiving outdated R-APS messages could result in incorrect switching decisions. During
the amount of time determined by this timer, all received R-APS messages are ignored by the ring protec-
tion control process.
By default, the guard timer value is set to 50 centi-seconds. To change the value of this timer, use the
ring guard-timer command. For example:
-> erp-ring 1 guard-timer 100
To restore the Guard Timer back to the default value, use the no form of the erp-ring guard-timer
command. For example:
-> no erp-ring 1 guard-timer
To verify the configured Guard Timer, use the
command, see the OmniSwitch CLI Reference Guide.
page 14-14
show erp command. For more information about this command,
show erp command. For more information about this
OmniSwitch AOS Release 6 Network Configuration Guide
erp-ring rpl-node
show erp command. For more information
Configuring ERP
erp-ring
erp-
September 2009