•
The output from a selection point on a different card.
Note that the output of a selection point can be used in a number of ways:
•
To drive the signals sent out of a set of sources.
•
As input into another selection point on the card.
•
As input into a selection point on another card.
Use the show frequency synchronization selection command to see a detailed view of the different selection
points within the system.
Configuring Frequency Synchronization
Enabling Frequency Synchronization on the Router
This task describes the router-level configuration required to enable frequency synchronization.
SUMMARY STEPS
1.
configure
2.
frequency synchronization
3.
clock-interface timing-mode {independent | system
4.
quality itu-t option {1 | 2 generation {1 | 2}}
5.
log selection {changes | errors}
6.
Use one of these commands:
•
end
•
commit
DETAILED STEPS
PurposeCommand or Action
configure
Step 1
Enables frequency synchronization on the router.frequency synchronization
Example:
RP/0/RSP0/CPU0:router(config)# frequency
synchronization
Step 2
(Optional) Configures the type of timing sources that can be used to drive
the output from a clock interface. If this command is not used, the default
clock-interface timing-mode {independent
| system
Step 3
quality mode is used. In the default mode, the clock interface output is
Cisco ASR 9000 Series Aggregation Services Router System Management Configuration Guide, Release 5.1.x
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Configuring Frequency Synchronization
Configuring Frequency Synchronization