Huawei Quidway S8500 Series - Flag

Command Manual – Port
Quidway S8500 Series Routing Switches Chapter 4 RPR Port Configuration Commands
Huawei Technologies Proprietary
4-15
Last known neighbour on ringlet0:00e0-fc5a-6fd9
Last known neighbour on ringlet1:00e0-fc39-aa35
Local topology state:topology is valid
4.1.11 flag
Syntax
flag { c2 c2-value | j0 j0-value | j1 j1-value }
undo flag { c2 | j0 | j1 }
View
RPR POS physical port view
Parameter
c2 c2-value: Path signal label byte, which is a high-order path overhead byte, and
indicates the multiplexing structure and message payload of the VC (virtual container)
frame.
j0 j0-value: Regeneration section trace message, which is a section overhead byte,
and checks port connectivity at section level.
j1 j1-value: Higher-order VC-N path trace byte, which is a high-order overhead byte,
and checks port connectivity at path level.
Description
Use the flag command to configure SONET/SDH overhead bytes.
Use the undo flag command to restore the default configuration.
In scrambling mode, c2 is 0x16 by default. In non-scrambling mode, c2 is 0xCF by
default.
By default, j0 and j1 both are “NetEngine”.
The c2, j0 and j1 values should be consistent respectively at the receiver and sender.
Otherwise, the system may give alarms.
Example
# Configure overhead byte for the RPR port.
<Quidway> system-view
[Quidway] interface RPR 2/1/1.1
[Quidway-RPR 2/1/1.1] flag c2 22