Configuring Clock Protection Switching Based On Priorities; Establishing The Configuration Task; Configuring The Router To Automatically Select Clock Sources - Huawei netengine80e Configuration Manual

HUAWEI NetEngine80E/40E Router
Configuration Guide - Basic Configurations
9.6 Configuring Clock Protection Switching Based on
Priorities
If clock sources are configured with different priorities, then the clock source with the second
highest priority becomes effective immediately after the clock source with the highest priority
fails.

9.6.1 Establishing the Configuration Task

Applicable Environment
When you configure protection switchover of clock sources based on priorities, you need to run
the command
When there are multiple clock sources, you can set different priorities for them. Normally, the
clock uses the clock source with the highest priority. When the clock source with the highest
priority is faulty, the clock uses the clock source with the second highest priority. By default the
priority of a clock reference source is not set, it indicates that this clock reference source does
not participate in selecting the clock source.
Pre-configuration Tasks
Before configuring protection switchover of clock sources based on priorities, complete the
following tasks:
l
Data Preparation
To configure protection switchover of clock sources based on priorities, you need the priorities
of different clock sources.

9.6.2 Configuring the Router to Automatically Select Clock Sources

Context
Do as follows on all router in the clock synchronization network:
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
clock clear [ 2msync-1 | 2msync-2 ]
The router is configured to automatically select clock sources.
Issue 02 (2011-09-10)
clock ssm-control
Configuring an external clock reference source and its signal type on the device.
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off to disable SSM.
9 Clock Synchronization Configuration
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