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Dazzla_20011's avatar
Dazzla_20011
Icon for Nimbostratus rankNimbostratus
Dec 05, 2012

Force a BIG-IP LTM Offline

Hi,   has anyone used the force offline on a BIG-IP to perform maintenance work, if so how does it work? I plan to do this on Standby LTM and this isn't something I've tried before. Anything I nee...
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pete_71470's avatar
pete_71470
Icon for Cirrostratus rankCirrostratus
Dec 05, 2012
While not directly related to bad things happening right after forcing the Standby offline, if you are running pre-v11.1 the primary could get its knickers in a twist if you're using connection mirroring:

 

 

http://support.f5.com/kb/en-us/solutions/public/12000/300/sol12370.html?sr=25794222

 

 

It turns out we were vulnerable to this but the standby wasn't down long enough to cause problems. If vulnerable, the solution is to simply shut off mirroring first.