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Configuring the Clock Source

For both the router and interfaces, the clock source can be an external clock that is received on the interface or the router’s internal Stratum 3 clock.

To set the clock source as external or internal:

  1. In configuration mode, go to the [edit interfaces interface-name] hierarchy level:
    [edit]user@host# edit interfaces interface-name
  2. Configure the clocking option as external or internal.
    [edit interfaces interface-name]user@host# set clocking (external | internal)

Note: M7i and M10i routers do not support external clocking of SONET interfaces.

For information about clocking on channelized interfaces, see Channelized IQ and IQE Interfaces Properties. Also see Configuring the Clock Source on SONET/SDH Interfaces and Configuring the Channelized T3 Loop Timing.

For information about configuring an external synchronization interface that can be used to synchronize the internal Stratum 3 clock to an external source on the M40e, M120, and M320 routers and on the T Series routers, see Junos OS Administration Library for Routing Devices, Configuring the Junos OS to Support an External Clock Synchronization Interface for M Series and T Series Routers.

For information about configuring Synchronous Ethernet on MX80, MX240, MX480, and MX960 3D Universal Edge Routers, see Junos OS Administration Library for Routing Devices, Synchronous Ethernet Overview and Configuring Clock Synchronization Interface for MX Series Routers.

 

Related Documentation

 

Published: 2013-08-01

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