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

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Use undo t1 frame-format to restore the default.
Syntax
t1 t1-number frame-format { esf | sf }
undo t1 t1-number frame-format
Default
The framing format for a T1 channel is ESF.
Views
CPOS interface view
Predefined user roles
network-admin
Parameters
t1-number: Specifies a T1 channel by its number on a CPOS interface. The value range for this argument
is 1 to 84.
esf: Sets the T1 channel to use the extended super frame (ESF) format.
sf: Sets the T1 channel to use the super frame (SF) format.
Examples
# Set the framing format of T1 channel 1 to SF.
<Sysname> system-view
[Sysname] controller cpos 2/4/0
[Sysname-Cpos2/4/0] t1 1 set frame-format sf
t1 loopback
Use t1 loopback to set the loopback mode of a T1 channel.
Use undo t1 loopback to disable loopback.
Syntax
t1 t1-number loopback { local | payload | remote }
undo t1 t1-number loopback
Default
Loopback is disabled.
Views
CPOS interface view
Predefined user roles
network-admin
Parameters
t1-number: Specifies a T1 channel by its number on a CPOS interface. The value range for this argument
is 1 to 84.
local: Enables internal loopback.
payload: Enables external payload loopback.