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Configuring the Protect Interface
To configure the protect interface:
1.
2.
3.
4.
5.
6.
aps group
Specify an integer n in one of the following ranges, where n corresponds to a
rate of 10-n (10e-n) errors per second.
For sd-ber, an integer in the range 5–9; the default value is 5
For sf-ber, an integer in the range 3–5; the default value is 3
Example
host1(config-controll)#threshold sf-ber 4
Use the no version to restore the default, 5 (for sd-ber) or 3 (for sf-ber), for the
specified alarm.
See threshold.
Select the interface.
host1(config)#controller sonet 4/1
Specify the APS group to which the protect and working interfaces will belong.
host1(config-controll)#aps group boston
Specify the protect interface.
host1(config-controll)#aps protect
(Optional) Prevent the protect interface from taking over automatically if the
working interface fails.
host1(config-controll)#aps lockout
(Optional) Enable the router to revert to the working interface when it recovers.
host1(config-controll)#aps revert 7
(Optional) Specify that switchover takes place in unidirectional mode.
host1(config-controller)#aps unidirectional
Use to specify the group to which the working and protect interfaces will belong.
Specify the name of the APS group.
Example
host1(config-controll)#aps group boston
Use the no version to remove a group of APS interfaces.
See aps group.
Chapter 3: Configuring Unchannelized OCx/STMx Interfaces
Configuration Tasks
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