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

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flag
Use flag to set the SONET/SDH overhead bytes.
Use undo flag to restore the default SONET/SDH overhead bytes.
Syntax
flag c2 flag-value
undo flag c2
flag { j0 | j1 } { sdh | sonet } flag-value
undo flag { j0 | j1 } { sdh | sonet }
Default
The default SDH overhead bytes are used.
The default overhead bytes are as follows:
• c2—0x16
• j0 (SDH)—Null
• j1 (SDH)—Null
• j0 (SONET)—0x01
• 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.