To configure timing synchronization

Purpose

The following procedure describes the sequence of tasks required to configure timing synchronization. This procedure assumes that the shelf and its daughter cards have been configured.

You must enable the Synchronous Ethernet parameter on the daughter card in order to configure the Timing Reference One and Timing Reference Two panels for SyncE. See To configure an MDA .

You must configure an IEEE 1588 PTP clock on the device when you configure PTP as a timing reference; see To configure an IEEE 1588 PTP clock on a 7705 SAR or To configure the IEEE 1588 PTP clock on a 7210 SAS, 7250 IXR, 7450 ESS, or 7750 SR.

Steps
 
1 

On the equipment tree, expand Network→NE→Shelf.

2 

Right-click on the Shelf object and choose Properties. The Shelf (Edit) form opens.

3 

Click on the Timing tab and configure the required parameters.

When you select a port as a timing reference for SyncE, the Port Clock Mode parameter for the port must be set to Manual Slave. See To configure Ethernet ports . Other restrictions may also apply for SyncE port selection, depending on the device. See the NE documentation for more information.

You can enable the Administrative State parameter in the PTP panel only when the Frequency Source and Oper Frequency Source parameters are both set to Ptp on the IEEE 1588 PTP Clock form; see To configure the IEEE 1588 PTP clock on a 7210 SAS, 7250 IXR, 7450 ESS, or 7750 SR .

For the 7210 SAS-D ETR, 7210 SAS-M, and 7210 SAS-X, PTP and SyncE are mutually exclusive. Consider the following when configuring timing synchronization on these 7210 SAS NEs:

  • You can only choose PTP as an option for First Timing Reference Input when the Administrative State parameter in the PTP panel is set to Up.

  • You cannot configure the Second Timing Reference Input parameter when the First Timing Reference Input parameter is set to PTP.

  • You can only set the Administrative State parameter in the PTP panel to Up when the Administrative State parameter in both the Timing Reference One and Timing Reference Two panels is set to Down.

  • You can only set the Administrative State parameter in the Timing Reference One and Timing Reference Two panels to Up when the Administrative State parameter in the PTP panel is set to Down.

Note: The displayed parameters vary depending on the NE type, release, and the settings of other parameters.

4 

Save your changes and close the form.

End of steps