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

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<Sysname> system-view
[Sysname] controller cpos 2/4/0
[Sysname-Cpos2/4/0] e1 63 channel-set 1 timeslot-list 1-31
# Enter the view of the serial interface created for the channel set.
[Sysname-Cpos2/4/0] quit
[Sysname] interface serial 2/4/0/63:1
[Sysname-Serial2/4/0/63:1]
Related commands
e1 unframed
e1 clock
Use e1 clock to set the clock mode of an E1 channel.
Use undo e1 clock to restore the default.
Syntax
e1 e1-number clock { master | slave }
undo e1 e1-number clock
Default
The clock mode of an E1 channel is slave.
Views
CPOS interface view
Predefined user roles
network-admin
Parameters
e1-number: Specifies an E1 channel by its number on the CPOS interface. The value range for this
argument is 1 to 63.
master: Sets the clock mode to master.
slave: Sets the clock mode to slave.
Usage guidelines
The clock mode settings of the E1 channels on a CPOS interface are independent of one another.
Set the clock mode on an E1 channel depending on its connected device.
• If the connected device is a SONET/SDH device, enable the slave clock mode on the channel. The
SONET/SDH network clock is more precise than the clock provided by the device.
• If the E1 channel is directly connected to a router, make sure the E1 channel uses a different clock
mode than the peer end.
Examples
# Set the clock mode to master on E1 channel 1.
<Sysname> system-view
[Sysname] controller cpos 2/4/0
[Sysname-Cpos2/4/0] e1 1 clock master