R0106-HP MSR Router Series Interface Command Reference(V7)

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line condition. You must configure loopback to allow the transmitted pattern to loop back from a specific
point on the line. For example, enable far-end loopback on the remote interface.
To display the state and result of the BERT test, use the display controller t3 command.
Examples
# Run a 10-minute QRSS BERT test on CT3 interface T3 2/4/0.
<Sysname> system-view
[Sysname] controller t3 2/4/0
[Sysname-T3 2/4/0] bert pattern qrss time 10
cable
Use cable to configure the cable length on a CT3 interface.
Use undo cable to restore the default.
Syntax
cable feet
undo cable
Default
The cable length is 49 feet (14.9 meters).
Views
CT3 interface view
Predefined user roles
network-admin
Parameters
feet: Cable length in the range of 0 to 450 feet (0 to 137.2 meters).
Usage guidelines
The cable length in this command refers to the distance between the router and the cable distribution
rack.
Examples
# Set the cable length to 50 feet (15.24 meters) on T3 2/4/0.
<Sysname> system-view
[Sysname] controller t3 2/4/0
[Sysname-T3 2/4/0] cable 50
clock
Use clock to set the clock mode of a CT3 interface.
Use undo clock to restore the default.
Syntax
clock { master | slave }
undo clock