Command Reference Guide

158 ● e1 set loopback 3Com Router 5000 Family and Router 6000 Family
Command Reference
e1 set loopback
Purpose Use the e1 set loopback command to set the loopback mode of the specified E1
line on the E3 interface.
Use the undo e1 set loopback command to disable loopback on the E1 line.
Syntax e1 line-number set loopback { local | remote | payload}
undo e1 line-number set loopback
Parameters line-number
E1 line number. Valid values are 1 to 16.
local
Enables local loopback on the E1 line.
remote
Enables remote loopback on the E1 line.
payload
Enables payload loopback on the E1 line.
Default By default, loopback is disabled on E1 lines.
Example Set the loopback mode of the first E1 line on the E3 interface to local.
[3Com -E3 1/0/0] e1 1 set loopback local
View This command can be used in the following views:
■ CE3 Interface view
Description If an E1 line encapsulated with PPP is placed in a loopback, it is normal that the state
of the link layer protocol is reported down.