Configuring A Clock Reference Source - Huawei netengine80e Configuration Manual

HUAWEI NetEngine80E/40E Router
Configuration Guide - Basic Configurations
You can switch the mode of configuring the clock reference source from manual to forcible
through command lines.
The clock reference source should be specified on the master clock, as shown in
Router A, the external clock interface, bits0, on the master clock board is connected to BITS0,
one reference clock source; the external clock interface, bits0, on the slave clock board is
connected to BITS1, another reference clock source. The output clock signals of BITS0 and
BITS1 are same.
Router A is manually or forcibly configured to trace the clock signal input through bits0. In
normal situations, Router A traces the BITS0 clock reference source. When the master clock
board fails, a switchover of the clock boards is performed. After that, Router A traces the BITS1
clock reference source.
Figure 9-1 Diagram of configuring the clock reference source manually
Router A
Pre-configuration Tasks
Before configuring the clock reference source manually, complete the following tasks:
Configuring an External Clock Reference Source and Its Signal Type on the device.
l
l
Data Preparation
None.

9.4.2 Configuring a Clock Reference Source

Context
Do as follows on all routers on the clock synchronization network.
Issue 02 (2011-09-10)
– The clock reference source is in the Abnormal state.
– The QL of the clock reference source is QL-DNU.
– The clock works in hold mode.
BITS0
CLK-IN
ETH
CLK-IN
BITS1
Configuring an external clock reference source
Configuring signal type of the external clock reference source
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ETH
Router B Router C
9 Clock Synchronization Configuration
Figure 9-1. On
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