Important!

If the Synchronization Autoreconfiguration parameter is to be Enabled, then Sync Messaging must be enabled on the associated OC-n/STM-n port.

To determine if Sync Messaging is enabled on the associated OC-n/STM-n port, select View → Equipment from the System View menu to access the required OC-n/STM-n port and observe the value of the Sync Messaging parameter.

If required, select Configuration → Equipment to access the associated OC-n/STM-n port and enable the Sync Messaging parameter.

Reference:

Procedure 4-4: Provision VLNC50/52/55 circuit pack and SONET/SDH ports for service

From the System View menu, select Configuration → Timing/Sync.

Result:

The Configure Timing/Sync window opens.

Select the System Timing tab.

From the Timing Mode drop-down menu, select Line.

For Output Timing, select Disabled (initial value).

Result:

With the Timing Mode set to Line, and Output Timing set to Disabled, the synchronization mode is set to Line timing.

Important!

It is recommended that Synchronization Autoreconfiguration be enabled to provide the most reliable network synchronization.

Provision the Clock Mode Switching, Reference Switching, Optical Synchronization Source, and Synchronization Autoreconfiguration parameters according to the work instructions.

For more information about clock mode switching and reference switching, refer to Clock mode switching and Reference switching.

For more information about Synchronization Autoreconfiguration, refer to Synchronization autoreconfiguration.

If the faceplate and backplane Gigabit Ethernet ports of the VLNC52/55 SONET/SDH Transport circuit pack are required to support Synchronous Ethernet, select Enabled for Synchronous Ethernet.

Click OK.

Result:

A warning message may appear. Click Yes to execute the command.

End of steps