down-when-looped
To configure a SONET controller to inform the system that it is down when loopback is detected, use the
down-when-looped command in SONET/SDH configuration mode.
down-when-looped
Syntax Description
This command has no keywords or arguments.
Command Default
The default is disabled.
Command Modes
SONET/SDH configuration
Command History
ModificationRelease
This command was introduced.Release 3.9.0
Usage Guidelines
To use this command, you must be in a user group associated with a task group that includes appropriate task
IDs. If the user group assignment is preventing you from using a command, contact your AAA administrator
for assistance.
This command does not have a no form.
Task ID
OperationsTask ID
read, writesonet-sdh
Examples
The following example shows how to configure a SONET controller to inform the system that the associated
line is down if a loopback is detected:
RP/0/RSP0/CPU0:router(config)# controller sonet 0/1/0/0
RP/0/RSP0/CPU0:router(config-sonet)# down-when-looped
down-when-looped is a traffic-affecting operation
Related Commands
DescriptionCommand
Configures the SONET controller for loopback mode.loopback (SONET), on page 872
Cisco ASR 9000 Series Aggregation Services Router Interface and Hardware Component Command Reference,
Release 5.3.x
863
SONET Controller Commands on the Cisco ASR 9000 Series Router
down-when-looped
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