R3303-HP HSR6800 Routers Interface Command Reference

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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.
S1 is the synchronization status byte. The value of S1 indicates the ITU-T clock quality, by which the
device can judge the quality of received clock signals and determine whether to switch to a
higher-quality clock source. A smaller value indicates higher clock precision.
S1S0 are two bits in the H1 byte. They are used by ITU to indicate the AU-n/TU-n type. S1S0 must be set
to 2 for AU-4, AU-3, and TU-3.
HP recommends not configuring the s1s0 keyword. Otherwise, a link failure might occur.
Examples
# Set J0 to aa on interface CPOS 2/0/0.
<Sysname> system-view
[Sysname] controller cpos 2/0/0
[Sysname-Cpos2/0/0] flag j0 sdh aa
Related commands
display controller cpos
flag vc-3
Use flag vc-3 to set an overhead byte for VC-3 frames.
Use undo flag vc-3 to restore the default.
Syntax
flag vc-3 path-number { c2 c2-value | j1 { sdh sdh-string | sonet sonet-string } | s1s0 s1s0-value }
undo flag vc-3 path-number { c2 | j1 { sdh | sonet } | s1s0 }
Views
CPOS interface view
Default command level
2: System level
Parameters
path-number: Number of a channel in VC-3.