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[M/T] Syslog message: CHASSISD_CLOCK_NOTICE

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Article ID: KB28772 KB Last Updated: 10 Apr 2014Version: 1.0
Summary:

This article describes the following syslog message:

CHASSISD_CLOCK_NOTICE

This message indicates that there has been a change in the clock synchronization between the router and the server. This article describes a method of diagnosing this message.

Note: This message is supported only on the following devices:

  • M320

  • M40e

  • M120

  • T320

  • T640

  • T1600

  • PTX Series Packet Transport Switches.

Symptoms:

Customers may notice the following message in the syslog messages of their router:

CHASSISD_CLOCK_NOTICE

  • What does this mean?
  • What is the next step?

Cause:

This message indicates that there has been a change in the clock synchronization between the router and the server.

Solution:

To verify the cause of this error message, run the following command:

router@RE0> show chassis synchronization

Note: Please refer to this documentation for explanation of the different output fields: www.juniper.net/techpubs/en_US/junos12.1/topics/reference/command-summary/show-chassis-synchronization.html.

That command will display an output similar to this:

Clock Synchronization Status :
   Clock module on CB 0
      Current state : master
      Current clock state : locked to external-b
         Selected for : 1 days, 12 hours, 16 minutes, 27 seconds
         Selected since : 2014-01-30 18:07:53 UTC
      Configured sources
         Source Priority Deviation Last deviation Status
                          (in ppm) (in ppm)
         external-a primary +105.27 -0.64 off-frequency
         external-b secondary -1.13 -1.18 in-use

Clock Synchronization Status :
   Clock module on CB 1
      Current state : backup
      Current clock state : locked to master CB
         Selected for : 147 days, 5 hours, 23 minutes, 56 seconds
         Selected since : 2013-09-15 09:27:24 UTC
      Configured sources
         Source Priority Deviation Last deviation Status
                         (in ppm) (in ppm)
         external-a primary +206.76 +509.73 off-frequency
         external-b secondary -0.41 -0.28 qualified

What is typically the case is the that server has changed. As seen above, the primary server is off-frequency for both CBs, which indicates that it is likely an issue on the server side. If the server is in a different state for each CB, then this indicates a likely issue with the router.

At this point, contact your technical support representative for further assistance.

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