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Forum Discussion

Vishal_96693's avatar
Vishal_96693
Icon for Nimbostratus rankNimbostratus
Jul 20, 2016

How to mark VS down when default pool goes down

Hello, I have came across very strange behavior from f5. When default PoolA marked down by health monitor then VS is stays up because PoolB is up. Hence GTM will not mark node down for fail over. V...
application delivery
iRules
LTM
IainThomson85_1's avatar
IainThomson85_1
Icon for Cumulonimbus rankCumulonimbus
Jul 20, 2016

If I understand correctly, you've got a GTM Providing DNS for services to LTM VIP's

 

To solve your problem, I would create a "Dummy" Virtual server on the LTM, with Pool A (or pool B, whichever is the non-default pool on the normal vip) and assign dependencies based on this availbility.

 

Therefore the GTM would only advertise/respond to requests via DNS if both pools are up.

 

Hope that makes sense.