E1 Set Loopback; E1 Shutdown - H3C MSR 20-20 Command Reference Manual

260 C 16: F
HAPTER UNDAMENTAL

e1 set loopback

Syntax
View
Parameter
Description
Example

e1 shutdown

Syntax
View
Parameter
Description
CE3 I C
NTERFACE ONFIGURATION
<Sysname> system-view
[Sysname] controller e3 2/0
[Sysname-E3 2/0] e1 1 set frame-format crc4
e1 line-number set loopback { local | payload | remote }
undo e1 line-number set loopback
CE3 interface view
line-number: E1 line number in the range 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.
Use the
e1 set loopback
E3 interface.
Use the
undo e1 set loopback
By default, loopback is disabled on E1 lines.
If an E1 line encapsulated with PPP is in loopback mode, it is normal that the state
of the link layer protocol is reported down.
# 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 set loopback local
e1 line-number shutdown
undo e1 line-number shutdown
CE3 interface view
line-number: E1 line number in the range 1 to 16.
Use the
e1 shutdown
Use the undo e1 shutdown
C
OMMANDS
command to set an E1 line in a loopback mode on the
command to restore the default.
command to shut down an E1 line on the CE3 interface.
command to restore the default.