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

253
Default command level
2: System level
Parameters
master: Sets the clock mode as master.
slave: Sets the clock mode as slave.
Usage guidelines
When the ATM interface is operating as DCE, set its clock mode to master. When the interface is
operating as DTE, set its clock mode to slave.
When the ATM interfaces on two routers are connected directly through a fiber-optic cable, set the clock
mode to master at one end and to slave at the other end.
Examples
# Set the clock mode of ATM interface 4/0 to master.
<Sysname> system-view
[Sysname] interface atm 4/0
[Sysname-Atm4/0] clock master
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.
Views
ATM OC-3c interface view, ATM STM-1 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.