R2511-HP MSR Router Series Interface Command Reference(V5)

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The J0 byte can be any character in the network of the same carrier. If two carriers are involved, make
sure that the sending and receiving devices use the same J0 byte at their network borders.
Examples
# Set the SDH overhead byte J0 of POS1/0 interface.
<Sysname> system-view
[Sysname] interface pos 1/0
[Sysname-Pos1/0] flag j0 sdh ff
Related commands
display interface pos
frame-format
Use frame-format to configure framing on a POS interface.
Use undo frame-format to restore the default.
Syntax
frame-format { sdh | sonet }
undo frame-format
Default
The framing format is SDH.
Views
POS interface view
Default command level
2: System level
Parameters
sdh: Sets framing format to synchronous digital hierarchy (SDH).
sonet: Sets framing format to synchronous optical network (SONET).
Examples
# Set the framing format on POS 1/0 to SDH.
<Sysname> system-view
[Sysname] interface pos 1/0
[Sysname-Pos1/0] frame-format sdh
link-protocol
Use link-protocol to set the link layer protocol of a POS interface.
Syntax
link-protocol { fr [ ietf | mfr interface-number | nonstandard ] | hdlc | ppp }
Default
PPP is used.