Configuring the Clock Negotiation Mode for an XGE Electrical Interface

Context

On a modern communications network, most telecommunications services require that the frequency offset or time difference between devices be in an acceptable range. When an XGE electrical interface on an ES5D21X08T00 card of a Huawei device connects to a non-Huawei device, the clock negotiation mode of the XGE electrical interface on the local device is auto-negotiation by default. The two devices determine the master/slave relationship based on the negotiation result and perform network clock synchronization. When the local device negotiates to become the master device, the interfaces on both ends may fail to go Up or their rate may decrease due to the impact of the non-Huawei device. In this case, run the port clock-mode slave command to set the clock negotiation mode of the XGE electrical interface of the local device to the slave mode. This configuration ensures clock synchronization between the two devices.

Only the XGE electrical interfaces of the ES5D21X08T00 cards support this function.

Procedure

1. Run system-view

   The system view is displayed.

2. Run interface XGigabitEthernet interface-number

   The XGE interface view is displayed.

3. Run port clock-mode slave

   The clock negotiation mode of the XGE electrical interface is set to slave.

   By default, the clock negotiation mode of an XGE electrical interface is the auto-negotiation mode.