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JunosE 11.2.x Physical Layer Configuration Guide
aps group
88
Use to set thresholds for the bit error rates associated with APS/MSP alarms.
This command does not apply to the working interface. You can issue this command
only for the protect interface.
Specify one of the following keywords to indicate the alarm level:
sd-ber—Bit error rate that specifies signal degradation
sf-ber—Bit error rate that specifies signal failure
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.
Configuring the Protect Interface
To configure the protect interface:
Select the interface.
1.
host1(config)#controller sonet 4/1
Specify the APS group to which the protect and working interfaces will belong.
2.
host1(config-controll)#aps group boston
Specify the protect interface.
3.
host1(config-controll)#aps protect
(Optional) Prevent the protect interface from taking over automatically if the working
4.
interface fails.
host1(config-controll)#aps lockout
(Optional) Enable the router to revert to the working interface when it recovers.
5.
host1(config-controll)#aps revert 7
(Optional) Specify that switchover takes place in unidirectional mode.
6.
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
Copyright © 2010, Juniper Networks, Inc.
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