R0106-HP MSR Router Series Interface Command Reference(V7)

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[Sysname] interface pos 2/2/0
[Sysname-Pos2/2/0] flag j0 sdh ff
Related commands
• display interface pos
• frame-format
flag j1
Use flag j1 to set the J1 path trace byte.
Use undo flag j1 to restore the default.
Syntax
flag j1 { sdh | sonet } flag-value
undo flag j1 { sdh | sonet }
Default
The device uses the SDH framing format. In SDH frames, the J1 byte is an empty string.
Views
Standard POS interface view, POS channel interface view
Predefined user roles
network-admin
Parameters
flag-value: Specifies a J1 byte value. It must be a string of 1 to 15 characters for SDH and a string of 1
to 62 characters for SONET.
sdh: Specifies the SDH framing format.
sonet: Specifies the SONET framing format.
Usage guidelines
J1 byte is a higher-order path overhead byte. SDH and SONET use this byte to test continuity of the
connection between two interfaces at the path level.
The J1 byte must be the same at both ends of a link.
Examples
# Set the J1 byte to aabbcc for SDH on POS 2/2/0.
<Sysname> system-view
[Sysname] interface pos 2/2/0
[Sysname-Pos2/2/0] flag j1 sdh aabbcc
Related commands
• display interface pos
• flag j1 ignore
• frame-format