Here
we describes how to configure the system clock to restrict the clock frequency
and phase of each node on a network within the preset tolerance scope. This
prevents transmission performance deterioration caused by poor timing at both
the transmit and receive ends in the digital transmission system. This configuration also works for Huawei MA5603T and Huawei MA5608T.
On a digital network
comprising the MA5600 series and other devices, the primary problem is clock
synchronization. To ensure that the system uses a unified clock standard, you
must specify the clock signals from a certain port as the system clock source.
1.
Run the clock source command to configure the system clock source.
Specify the clock signals extracted from a certain port
as the system clock source.
2.
Run the clock priority command to configure the priority of the clock source.
To obtain two clock sources from
ports 0/5/0 and 0/5/1 of the SHEB board as clock source 0
and clock source 2 of the system, configure clock source 2 with the highest
priority, and configure clock source 0 with the second highest priority, do as
follows:
huawei(config)#clock
source 0 0/5/0
huawei(config)#clock
source 2 0/5/1
huawei(config)#clock
priority sdh 2/0
