R3303-HP HSR6800 Routers Interface Command Reference

190
• j1 (SONET)—Null
Views
POS interface view
Default command level
2: System level
Parameters
c2 flag-value: Path signal flag byte, a higher-order path overhead byte used to indicate the multiplex
structure of virtual container (VC) frames and property of payload. It is a hexadecimal number in the
range of 0x00 to 0xFF.
j0 flag-value: Regeneration section trace message, a section overhead byte used to test continuity of the
connection between two interfaces at the section level. If the sdh keyword is configured, the flag-value
argument is a string of 1 to 15 hexadecimal digits. If the sonet keyword is configured, the argument is a
hexadecimal number in the range of 0x00 to 0xFF.
j1 flag-value: Path trace message, a higher-order path overhead byte used to test continuity of the
connection between two interfaces at the path level. If the sdh keyword is configured, the flag-value
argument is a string of 1 to 15 hexadecimal digits. If the sonet keyword is configured, the argument is a
string of 1 to 62 characters.
sdh: Sets framing format to SDH.
sonet: Sets framing format to SONET.
Usage guidelines
Inconsistency between the c2 and j1 settings of the sending POS interface and the receiving POS
interface causes alarms.
The J0 byte can be any character in the network of the same carrier. If two carriers are involved, make
sure the sending and receiving devices use the same J0 byte at their network borders.
Examples
# Set the SDH overhead byte J0 of POS 2/1/0 interface.
<Sysname> system-view
[Sysname] interface pos 2/1/0
[Sysname-Pos2/1/0] flag j0 sdh ff
Related commands
display interface pos
flag j1 ignore
Use flag j1 ignore to ignore CRC of the J1 byte.
Use undo flag j1 ignore to restore the default.
Syntax
flag j1 ignore
undo flag j1 ignore
Default
CRC is performed for the J1 byte.