R0106-HP MSR Router Series Interface Command Reference(V7)

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Parameters
master: Specifies the internal clock as the clock source.
slave: Specifies the line clock as the clock source.
Usage guidelines
When ATM interfaces are operating as DCEs, set the clock mode to master. When interfaces are
operating as DTEs, set the 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 interface ATM 2/4/0 to master.
<Sysname> system-view
[Sysname] interface atm 2/4/0
[Sysname-ATM2/4/0] 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 value of c2 is 0x13.
The system uses the SDH frame format. The default values for both j0 and j1 are null.
Views
ATM OC-3c/STM-1 interface view
Predefined user roles
network-admin
Parameters
c2 flag-value: Specifies the C2 byte. The C2 byte is 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: Specifies the J0 byte. The J0 byte is 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: Specifies the J1 byte. The J1 byte is 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