Enable The Permanent Holding Mode Of The Clock Module; Configuring The Non-Retrieve Mode Of The Clock Source - Huawei Quidway S9300 Configuration Manual

Quidway S9300 Terabit Routing Switch
Configuration Guide - Device Management
Context
Setting the WTR time of a clock source can avoid some mistakes in determining the clock source
caused by occasional signal jitter on the network.
Do as follows on the S9300.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
clock wait-to-restore wait-to-restore-time source source
The wait-to-restore (WTR) time of a clock source is set.
By default, the WTR time of a clock source is 1 minute.
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11.7.10 Enable the Permanent Holding Mode of the Clock Module

Context
Do as follows on the S9300.
Procedure
Step 1 Run:
system-view
The system view is displayed.
Step 2 Run:
clock hold-for-ever
The permanent holding mode of the clock module is enabled. That is, the clock module holds
the clock information permanently after the clock source is lost.
By default, the clock module retains the clock information for 24 hours after the clock source is
lost.
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11.7.11 Configuring the Non-Retrieve Mode of the Clock Source

Issue 03 (2011-12-29)
NOTE
The default WTR time of a clock source is 1 minute. Generally, you do not need to change the default
value.
If you want to see the clock source switching result during debugging, set the WTR time to 0.
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11 Ethernet Clock Syntonization Configuration
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