For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

joliver_106458's avatar
joliver_106458
Icon for Nimbostratus rankNimbostratus
Feb 17, 2010

Synchronize to Peer Time Differences Issue

Newbe here,   I've got two Big IP LTM ver 9.3.1 running in active / standbye and when I try to sync to peer I get a "Time difference between the 2 devices exceed acceptable range." ... configsyn...
management
monitoring
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Feb 17, 2010
Hi John,

 

 

You can use ntpq to check the NTP synching:

 

 

 

http://devcentral.f5.com/Default.aspx?tabid=53&forumid=33&tpage=1&view=topic&postid=5989059899

 

 

How far apart are the times? Is the error accurate? If so, you could verify your NTP configuraiton is working and then manually set the time to something close to accurate and let NTP update it to the exact time on each unit. As citizen_elah suggested, you can use ntpq to troubleshoot NTP issues:

 

 

SOL10240: Verifying Network Time Protocol peer server communications

 

https://support.f5.com/kb/en-us/solutions/public/10000/200/sol10240.html

 

 

Searching for ntpq also returns this related solution:

 

 

SOL7017: The BIG-IP ntpd daemon is unable to communicate with the NTP server

 

https://support.f5.com/kb/en-us/solutions/public/7000/000/sol7017.html

 

 

 

 

And if you need to sync the config in the meantime, you can manually copy a UCS from the most up to date unit and load it using 'b config install /path/to/updated.ucs'. Only the shared configuration will be loaded on the unit.

 

 

Aaron