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Recommendation to disable NTP update to the member(s) in NSRP environment

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Article ID: KB7009 KB Last Updated: 11 Aug 2010Version: 4.0
Summary:
Disable NTP update to the member(s) in NSRP environment
Symptoms:
Symptoms:
  • NTP (Network Time Protocol) update is synchronized to other member(s) in NSRP environment
  • Event log shows many system notification messages as follows:
fw->get event | include clock

2007-12-28 22:11:02 system notif 00008 System clock configurations have been changed by netscreen
2007-12-28 22:11:02 system notif 00008 System clock is changed manually.
2007-12-28 22:10:03 system notif 00008 System clock configurations have been changed by netscreen
2007-12-28 22:10:03 system notif 00008 System clock is changed manually.
2007-12-28 22:09:04 system notif 00008 System clock configurations have been changed by netscreen
2007-12-28 22:09:04 system notif 00008 System clock is changed manually.
2007-12-28 22:08:05 system notif 00008 System clock configurations have been changed by netscreen
2007-12-28 22:08:05 system notif 00008 System clock is changed manually.
Solution:

By default, when one NSRP member gets an NTP server's response, it will update another NSRP member. 

Therefore, it is recommended to disable NTP updates to other member(s) in an NSRP environment with the following command:

    set ntp no-ha-sync



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