Cisco ASR 5000, Administration Manual, Page: 72 / 466

Configure Line-timing as the Timing Source
Use the following example to configure line-timing as the timing source:
configure
port atm slot#/port#
line-timing
no shutdown
exit
port bits slot#/port#
recover line1 linecard_slot #
shutdown
end
For additional information, refer to the ATM Port Configuration Mode Commands (OLC) and Channelized
Port Configuration Mode Commands (CLC) chapters of the Command Line Interface Reference .
Save the configuration as described in the Verifying and Saving Your Configuration chapter.
Configure Both BITS and Line as Timing Sources
Use the following example to configure both BITS and line-timing as the timing sources:
configure
card CLC_slot#
framing mode
exit
port atm OLC_slot#/port#
line-timing
no shutdown
exit
port channelized CLC_slot#/port#
line-timing
no shutdown
exit
port bits slot#/port#
recover line1 LC_slot#/port#
recover line2 LC_slot#/port#
no shutdown
end
Save the configuration as described in the Verifying and Saving Your Configuration chapter.
Confirming the Timing Source
Use the show timing command, documented in the Exec Mode Commands chapter of the Command Line
Interface Reference , to confirm that the timing source has been configured correctly.
ASR 5000 System Administration Guide, StarOS Release 21.1
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System Settings
Configure Line-timing as the Timing Source