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

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IMPORTANT:
Make sure the local end has the same timeslot bundling settings as the remote end for successful
communication.
Examples
# Bundle timeslots 1 to 31 into a channel set on E1 channel 63.
<Sysname> system-view
[Sysname] controller cpos 1/0
[Sysname-Cpos1/0] e1 63 channel-set 1 timeslot-list 1-31
# Enter the view of the serial interface created for the channel set.
[Sysname-Cpos1/0] quit
[Sysname] interface serial 1/0/63:1
[Sysname-Serial1/0/63:1]
Related commands
e1 unframed
e1 set clock
Use e1 set clock to set the clock mode of an E1 channel.
Use undo e1 set clock to restore the default.
Syntax
e1 e1-number set clock { master | slave }
undo e1 e1-number set clock
Default
The clock mode of the E1 channel is slave.
Views
CPOS interface view
Default command level
2: System level
Parameters
e1-number: Number of an E1 channel on the CPOS interface, in the range of 1 to 63.
master: Sets the clock mode of the E1 channel to master.
slave: Sets the clock mode of the E1 channel 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.