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Forum Discussion

VFB's avatar
VFB
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Apr 02, 2014

Viewing GTM cluster and synchronization

I'm setting up 2 stand alone GTM's and did the gtm_add but what I don't understand it when I create a wide IP or a pool, it doesn't replicate to the other standalone device. Both devices can see each...
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Cory_50405's avatar
Cory_50405
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Apr 02, 2014

Unfortunately, there isn't an easy way to do this with GTM sync groups. About the only thing you can do is check log messages to see which devices have joined/left the sync group. Messages would appear in /var/log/gtm and look like this:

 

gtmd[11895]: 011a5008:1: SNMP_TRAP: BIG-IP GTM /Common/ () joined sync group default

 

And you can see if synchronizations are occurring by checking /var/log/ltm and looking for messages like this one:

 

Mar 20 18:37:05 hostname notice mcpd[6608]: 010714a0:5: Sync of device group /Common/gtm to commit id 263 5992942257632424507 /Common/hostname 0 from device complete.

 

  • VFB's avatar
    VFB
    Icon for Cirrus rankCirrus
    Apr 02, 2014
    Thanks Cory. It's a bit depressing not being able to see that to be honest. Even Cisco got that piece right with their GSS devices.
  • Cory_50405's avatar
    Cory_50405
    Icon for Noctilucent rankNoctilucent
    Apr 02, 2014
    The feature would certainly be well received if they decided to implement. We encountered an issue where a code upgrade caused GTM sync to break (think it was in 11.1). So with four GTM sync group members, something like this would have been great.