R3303-HP HSR6800 Routers Interface Command Reference

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frame-format
Use frame-format to set the framing format for an ATM OC-3c/STM-1 interface.
Use undo frame-format to restore the default
Syntax
frame-format { sdh | sonet }
undo frame-format
Default
The framing format is SDH STM-1.
Views
ATM OC-3c interface view, ATM STM-1 interface view
Default command level
2: System level
Parameters
sdh: Sets the framing format to SDH STM-1, the synchronous transport module-level 1 (STM-1) of
synchronous digital hierarchy (SDH).
sonet: Sets the framing format to SONET OC-3, the optical carrier level three (OC-3) of synchronous
optical network (SONET).
Examples
# Set the framing format to SDH STM-1 on an ATM OC-3c/STM-1 interface.
<Sysname> system-view
[Sysname] interface atm 5/1/0
[Sysname-Atm5/1/0] frame-format sdh
loopback
Use loopback to configure the loopback mode on the ATM OC-3c/STM-1 interface.
Use undo loopback to disable loopback.
Syntax
loopback { cell | local | remote }
undo loopback
Default
Loopback is disabled.
Views
ATM OC-3c interface view, ATM STM-1 interface view
Default command level
2: System level
Parameters
cell: Enables internal cell loopback.