Setting the synchronization source

Last Updated : Aug 23, 2013 |

Procedure

To determine which reference source is the active source, use the set sync source primary|secondary command.

If you choose secondary, the secondary source becomes active, and the primary source goes on standby. In addition, fallback to the primary source does not occur even when the primary source becomes available.

Result

If neither primary nor secondary sources are identified, the local clock becomes the active source.

Example

The following example sets the MM710 media module located in slot 2 of the Branch Gateway chassis as the primary clock synchronization source for the Branch Gateway.

set sync interface primary v2
set sync source primary

If the Branch Gateway includes a second MM710 media module, enter the following command:

set sync interface secondary v3
set sync source secondary

If, for any reason, the primary MM710 media module cannot function as the clock synchronization source, the system uses the MM710 media module located in slot 3 of the Branch Gateway chassis as the clock synchronization source. If neither MM710 media module can function as the clock synchronization source, the system defaults to the local clock running on the chassis.