R2511-HP MSR Router Series Interface Command Reference(V5)

218
Views
CT3 interface view
Default command level
2: System level
Parameters
line-number: T1 line number in the range of 1 to 28.
local: Sets the T1 line in internal loopback mode.
remote: Sets the T1 line in external loopback mode.
remote: Sets the T1 line in payload loopback mode.
Usage guidelines
Loopback is intended for test use. Disable loopback in other cases.
If a T1 line encapsulated with PPP is placed in loopback mode, it is normal that the state of the link layer
protocol is reported as down.
Examples
# Enable internal loopback on the first T1 line on interface T3 2/0.
<Sysname> system-view
[Sysname] controller t3 2/0
[Sysname-T3 2/0] t1 1 set loopback local
t1 show
Use t1 show to have a quick look at the line state of the specified T1 line on the CT3 interface.
Syntax
t1 line-number show
Views
CT3 interface view
Default command level
2: System level
Parameters
line-number: T1 line number in the range of 1 to 28.
show: Displays the physical line state of the specified T1 line.
Examples
# Display line state of T1 line 1 on CT3 interface T3 2/0.
<Sysname> system-view
[Sysname] interface t3 2/0
[Sysname-T3 2/0] t1 1 show
T3 2/0 CT1 1 is up
Frame-format ESF, clock slave, loopback not set
FDL Performance Report is disabled
Transmitter is sending none