Loopback; Multiplex Mode - H3C MSR 20-20 Command Reference Manual

682 C 45: CPOS I
HAPTER
Parameter
Description
Example

loopback

Syntax
View
Parameter
Description
Example

multiplex mode

Syntax
View
Parameter
C C
NTERFACE ONFIGURATION OMMANDS
sdh: Sets framing format to synchronous digital hierarchy (SDH).
sonet: Sets framing format to synchronous optical network (SONET).
Use the
frame-format
Use the undo frame-format
# Set the framing format on interface CPOS 1/0 to SONET.
<Sysname> system-view
[Sysname] controller cpos 1/0
[Sysname-Cpos1/0] frame-format sonet
loopback { local | remote }
undo loopback
CPOS interface view
local: Internal loopback, used for testing the physical interface itself.
remote: External loopback, used for testing the cable connected to the interface.
Use the
loopback
interface.
Use the
undo loopback
By default, loopback is disabled.
Loopback is intended for test use. Disable it otherwise.
# Enable external loopback on interface CPOS 1/0.
<Sysname> system-view
[Sysname] controller cpos 1/0
[Sysname-Cpos1/0] loopback remote
multiplex mode { au-3 | au-4 }
undo multiplex mode
CPOS interface view
au-3: Gets AUG through AU-3.
command to configure framing on the CPOS interface.
command to restore the default, that is, SDH.
command to configure the loopback mode on the CPOS
command to remove a loopback.