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

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[Sysname] controller e3 2/4/0
[Sysname-E3 2/4/0] bert pattern qrss time 10
clock
Use clock to set the clock mode of a CE3 interface.
Use undo clock to restore the default.
Syntax
clock { master | slave }
undo clock
Default
The clock mode for a CE3 interface is slave.
Views
CE3 interface view
Predefined user roles
network-admin
Parameters
master: Sets the clock mode to master.
slave: Sets the clock mode to slave.
Usage guidelines
When the clock mode of a CE3 interface is master, it uses the internal clock source.
When the clock mode of a CE3 interface is slave, it uses the line clock source.
When connected to a SONET/SDH transmission device, the CE3 interface must use the slave clock. The
clock provided by the transmission device is more precise.
If two CE3 interfaces are directly connected, you must configure the two ends with different clock modes.
Examples
#Set the clock mode to master for CE3 interface E3 2/4/0.
<Sysname> system-view
[Sysname] controller e3 2/4/0
[Sysname-E3 2/4/0] clock master
controller e3
Use controller e3 to enter CE3 interface view.
Syntax
controller e3 interface-number
Views
System view
Predefined user roles
network-admin