Juniper JUNOSE 11.2.X MULTICAST ROUTING, Configuration Manual

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Monitoring APS/MSP
You can use the show aps commands to monitor APS/MSP.
show aps
•
Use to display information about interfaces on which APS/MSP is configured.
•
Use the all keyword to display information from all APS/MSP groups. In the output,
partially configured controllers are displayed with none and include only the group
name.
•
Field descriptions
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sonet x/y—Location of the SONET/SDH interface
•
protect group—Name of the APS group that contains the working interface and the
corresponding protect interface
•
channel—Number of the APS channel; 0 identifies the protect interface, 1 identifies
the working interface
•
~—Interface is not currently active
•
Selected—Interface is active
•
~Selected—Interface is not active
•
Bidirectional—Router switches to the protect interface using the bidirectional
switching mechanism
•
Unidirectional—Router switches to the protect interface using the unidirectional
mode switching mechanism
•
Nonrevertive—Router does not revert to the working interface when it recovers
•
Revertive—Router reverts to the working interface when it recovers
•
Disabled—APS/MSP is disabled on the interface
•
Enabled—APS/MSP is enabled on the interface
•
Example 1
host1# show aps
sonet 5/1 protect group one channel 0 ~Selected Unidirectional
Nonrevertive
sonet 5/0 working group one channel 1 Selected Enabled
•
Example 2
host1# show aps all
aps events: disabled
sonet 4/0 working group group-4 channel 1 Selected Enabled
sonet 4/1 protect group group-4 channel 0 ~Selected Unidirectional
Nonrevertive
sonet 2/0 working group group-2 channel 1 Selected Enabled
sonet 2/1 protect group group-2 channel 0 ~Selected Unidirectional
Copyright © 2010, Juniper Networks, Inc. 102
JunosE 11.2.x Physical Layer Configuration Guide