Command Reference Guide

3Com Router 5000 Family and Router 6000 Family e1 set loopback ● 153
Command Reference
e1 set loopback
Purpose Use the e1 set loopback command to configure the loopback mode of the E1
channel.
Use the undo e1 set loopback command to disable loopback (default).
Syntax e1 e1-number set loopback { local | remote }
undo e1 e1-number set loopback
Parameters e1-number
Number of an E1 channel on the CPOS interface. Valid
values are 1 to 63.
local
Places the E1 channel in local loopback.
remote
Places the E1 channel in remote loopback.
Example Place E1 channel 1 in remote loopback.
<3Com > system-view
[3Com ] controller cpos 1/0/0
[3Com -Cpos1/0/0] e1 1 set loopback remote
View This command can be used in the following views:
■ CPOS Interface view
Description You can test an E1 channel by placing it in local or remote loopback.
In local loopback, data of the sender is directly looped to the receiver.
In remote loopback, data received by the receiver is looped back without passing
through the E1 framer to generate payload.
E1 commands are available with the CPOS(E) interface module but not with the
CPOS(T) interface module.
Related Command display controller cpos e1