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

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undo t1 line-number shutdown
Default
T1 lines are up.
Views
CT3 interface view
Default command level
2: System level
Parameters
line-number: T1 line number in the range of 1 to 28.
Usage guidelines
This command shuts down not only the specified T1 line but also the serial interfaces formed on it. Data
transmission and receiving will stop as a result. Likewise, the undo t1 shutdown command can bring up
all these serial interfaces.
Examples
# Shut down the first T1 line on interface T3 2/0.
<Sysname> system-view
[Sysname] controller t3 2/0
[Sysname-T3 2/0] t1 1 shutdown
t1 unframed
Use t1 unframed to set a T1 line on the CT3 interface to operate in unframed mode (T1 mode).
Use undo t1 unframed to set the T1 line on the CT3 interface to operate in framed mode (CT1 mode).
Syntax
t1 line-number unframed
undo t1 line-number unframed
Default
T1 lines are operating in framed mode.
Views
CT3 interface view
Default command level
2: System level
Parameters
line-number: T1 line number in the range of 1 to 28.
Usage guidelines
A T1 line in unframed mode does not contain the frame control information; it cannot be divided into
timeslots. For it, the system automatically creates a serial interface numbered serial
number/line-number:0. This interface operates at 1544 kbps and is logically equivalent to a
synchronous serial interface on which you can make other configurations.