Flag - HP 6600 Command Reference Manual

flag

Use flag to set the overhead bytes of SONET/SDH frames.
Use undo flag to restore the default.
Syntax
flag { c2 path-number c2-value | s1 s1-value | s1s0 path-number s1s0-value }
undo flag { c2 path-number | s1 | s1s0 path-number }
flag { j0 | j1 path-number } { sdh | sonet } flag-value
undo flag { j0 | j1 path-number } { sdh | sonet }
Views
CPOS interface view
Default command level
2: System level
Parameters
j0 flag-value: Specifies the regenerator section trace message, which is a section overhead byte used to
detect the continuity of the connection between two interfaces at the section layer. With SDH frames,
flag-value is a string of 1 to 15 characters; with SONET frames, flag-value is in the range of 0x00 to 0xFF.
j1 path-number: Specifies the path trace message, which is a higher-order path overhead byte used to
detect the continuity of the connection between two interfaces at the path layer. With SDH frames,
flag-value is a string of 1 to 15 characters; with SONET frames, flag-value is a string of 1 to 62
characters.
sdh: Specifies the framing format as Synchronous Digital Hierarchy (SDH).
sonet: Specifies the framing format as Synchronous Optical Network (SONET).
c2 path-number c2-value: The path-number argument is the number of a path. The c2-value argument
specifies the path signal label byte; it is in the range of 0x00 to 0xFF and defaults to 0x02.
s1 s1-value: Specifies the synchronization status byte in the range of 0 to FF in hexadecimal format. The
default is F. The s1 keyword is not supported in the current software version. The keyword is reserved for
future support.
s1s0 path-number s1s0-value: The path-number argument is the number of a path; the s1s0-value
argument specifies the AU type and TU type in the range of 0 to 3.
Usage guidelines
SONET/SDH frames provide a variety of overhead bytes for operation and maintenance (OAM) such as
layered management on transmission networks.
J1, J0 and C2 are used to support interoperability between devices from different countries, areas, and
vendors.
J0 is a section overhead byte used for detecting the continuity of the connection between two interfaces
at the section layer. J1 and C2 are higher-order path overhead bytes. The J1 byte is used for detecting
the continuity of the connection between two interfaces at the path layer. The C2 byte is used for
indicating the multiplexing structure of a VC frame and the property of payload.
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