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

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Use undo ft1 clock to restore the default.
Syntax
ft1 clock { master | slave }
undo ft1 clock
Default
The clock mode of a T1-F interface is slave.
Views
T1-F 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 T1-F interface is master, it uses the internal clock source. When the clock mode
of a T1-F interface is slave, it uses the line clock source.
Set the clock mode for a T1-F interface as follows:
• When the T1-F interface is operating in DCE mode, set its clock mode to master.
• When the T1-F interface is operating in DTE mode, set its clock mode to slave.
• When two T1-F interfaces on two routers are directly connected, configure the two ends with
different clock modes.
• When the T1-F interface on a router is connected to a switch, the T1-F interface on the router
operates as a DTE. The switch operates as a DCE. Set the clock mode to slave for the T1-F interface
on the router to accept the clock provided by the switch.
Examples
# Set the clock mode to master on T1-F interface Serial 2/1/0.
<Sysname> system-view
[Sysname] interface serial 2/1/0
[Sysname-Serial2/1/0] ft1 clock master
ft1 code
Use ft1 code to set the line code format for a T1-F interface.
Use undo ft1 code to restore the default.
Syntax
ft1 code { ami | b8zs }
undo ft1 code
Default
The line code format is B8ZS for the T1-F interface.