3com MSR 20-20 참조 매뉴얼

C

HAPTER

 17: F

UNDAMENTAL

 CT3 I

NTERFACE

 C

ONFIGURATION

 C

OMMANDS

undo t1 line-number shutdown

CT3 interface view

line-number: T1 line number in the range 1 to 28.

Use the t1 shutdown command to shut down a T1 line on the CT3 interface.

Use the undo t1 shutdown command to bring up a T1 line.

By default, T1 lines are up.

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.

# Shut down the first T1 line on interface T3 2/0.

<Sysname> system-view

[Sysname] interface t3 2/0

[Sysname-T3 2/0] t1 1 shutdown 

t1 line-number unframed

undo t1 line-number unframed

CT3 interface view

line-number: T1 line number in the range 1 to 28.

Use the t1 unframed command to set a T1 line on the CT3 interface to work in 
unframed mode (T1 mode).

Use the undo t1 unframed command to set the T1 line on the CT3 interface to 
work in framed mode (CT1 mode).

By default, T1 lines are working in framed mode.

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.

t1 channel-set.

# Set the first T1 line on interface T3 2/0 to work in unframed mode.