Juniper JUNOSE 11.2.X MULTICAST ROUTING, Configuration Manual

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Use to set thresholds for the bit error rates associated with APS/MSP alarms.
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This command does not apply to the working interface. You can issue this command
only for the protect interface.
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Specify one of the following keywords to indicate the alarm level:
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sd-ber —Bit error rate that specifies signal degradation
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sf-ber —Bit error rate that specifies signal failure
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Specify an integer n in one of the following ranges, where n corresponds to a rate of
10-n (10e- n ) errors per second.
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For sd-ber , an integer in the range 5–9; the default value is 5
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For sf-ber , an integer in the range 3–5; the default value is 3
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Example
host1(config-controll)# threshold sf-ber 4
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Use the no version to restore the default, 5 (for sd-ber ) or 3 (for sf-ber ), for the specified
alarm.
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See threshold.
Configuring the Protect Interface
To configure the protect interface:
1.
Select the interface.
host1(config)# controller sonet 4/1
2.
Specify the APS group to which the protect and working interfaces will belong.
host1(config-controll)# aps group boston
3.
Specify the protect interface.
host1(config-controll)# aps protect
4.
(Optional) Prevent the protect interface from taking over automatically if the working
interface fails.
host1(config-controll)# aps lockout
5.
(Optional) Enable the router to revert to the working interface when it recovers.
host1(config-controll)# aps revert 7
6.
(Optional) Specify that switchover takes place in unidirectional mode.
host1(config-controller)# aps unidirectional
aps group
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Use to specify the group to which the working and protect interfaces will belong.
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Specify the name of the APS group.
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Example
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JunosE 11.2.x Physical Layer Configuration Guide