682 CHAPTER 45: CPOS INTERFACE CONFIGURATION COMMANDS
Parameter sdh: Sets framing format to synchronous digital hierarchy (SDH).
sonet: Sets framing format to synchronous optical network (SONET).
Description Use the
frame-format command to configure framing on the CPOS interface.
Use the undo frame-format command to restore the default, that is, SDH.
Example # 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
Syntax loopback { local | remote }
undo loopback
View CPOS interface view
Parameter local: Internal loopback, used for testing the physical interface itself.
remote: External loopback, used for testing the cable connected to the interface.
Description Use the
loopback command to configure the loopback mode on the CPOS
interface.
Use the
undo loopback command to remove a loopback.
By default, loopback is disabled.
Loopback is intended for test use. Disable it otherwise.
Example # Enable external loopback on interface CPOS 1/0.
<Sysname> system-view
[Sysname] controller cpos 1/0
[Sysname-Cpos1/0] loopback remote
multiplex mode
Syntax multiplex mode { au-3 | au-4 }
undo multiplex mode
View CPOS interface view
Parameter au-3: Gets AUG through AU-3.
