HP MSR2000/3000/4000 Router Series Interface Command Reference

150
Related commands
e1 unframed
e1 loopback
Use e1 loopback to set an E1 line in a loopback mode on the E3 interface.
Use undo e1 loopback to restore the default.
Syntax
e1 line-number loopback { local | payload | remote }
undo e1 line-number loopback
Default
Loopback is disabled on E1 lines.
Views
CE3 interface view
Predefined user roles
network-admin
Parameters
line-number: E1 line number in the range of 1 to 16.
local: Sets the E1 line in internal loopback mode.
payload: Sets the E1 line in payload loopback mode.
remote: Sets the E1 line in external loopback mode.
Usage guidelines
If an E1 line encapsulated with PPP is in loopback mode, the state of the link layer protocol is reported
down.
Examples
# Set the first E1 line on interface E3 2/0 in internal loopback mode.
<Sysname> system-view
[Sysname] controller e3 2/0
[Sysname-E3 2/0] e1 1 loopback local
e1 shutdown
Use e1 shutdown to shut down an E1 line on the CE3 interface.
Use undo e1 shutdown to restore the default.
Syntax
e1 line-number shutdown
undo e1 line-number shutdown
Default
E1 lines are up.