3com MSR 20-20 참조 매뉴얼

다운로드
페이지 2742
261
By default, E1 lines are up.
This command affects not only the specified E1 line but also the serial interfaces 
formed by E1 line bundling. Performing the e1 shutdown command on the 
specified E1 line shuts down all these serial interfaces. Data transmission and 
receiving stop as a result. Likewise, performing the undo e1 shutdown command 
restarts all these serial interfaces.
Example
# Shut down the first E1 line on interface E3 2/0.
<Sysname> system-view
[Sysname] controller e3 2/0
[Sysname-E3 2/0] e1 1 shutdown 
e1 unframed
Syntax
e1 line-number unframed
undo e1 line-number unframed
View
CE3 interface view
Parameter
line-number: E1 line number in the range 1 to 16.
Description
Use the e1 unframed command to set an E1 line on the CE3 interface to work in 
unframed mode (E1 mode).
Use the undo e1 unframed command to restore the default.
By default, an E1 line operates in framed mode (CE1 mode).
An E1 line in unframed mode does not contain the frame control information; it 
cannot be divided into timeslots. The system automatically creates a serial 
interface numbered serial number/line-number:0 for it. This interface operates at 
2048 kbps and is logically equivalent to a synchronous serial interface on which 
you can make other configurations.
Related command:
Example
# Set the first E1 line on interface E3 2/0 to operate in unframed mode.
<Sysname> system-view
[Sysname] controller e3 2/0
[Sysname-E3 2/0] e1 1 unframed 
fe3
Syntax
fe3 { dsu-mode { 0 | } | subrate number }
undo fe3 { dsu-mode | subrate }