Forum Discussion

EFFFIVE_26332's avatar
EFFFIVE_26332
Icon for Nimbostratus rankNimbostratus
Jul 28, 2008

Pool to pool failover

I need to be able to fail over all traffic to another pool. Let's say pool2 only if pool1 is not available. Can I do this in 4.5? Can you show me this rule please?

 

 

 

The traffic that I am concerned about is http but, an example which incorporates all traffic would not hurt either.

 

 

 

How about node to node is that better. The two nodes/pools would be in two different physical places, but the network is spanned.

 

application delivery
dev
devops
iRules
v4
  • hoolio's avatar
    hoolio
    Icon for Cirrostratus rankCirrostratus
    Jul 30, 2008
    There isn't a way to check the state of one pool and select a different pool in an iRule in 4.x. You can get similar functionality using priority groups. You can check SOL2423 for details "Overview of priority load balancing" (Click here).

     

     

    You could also send an HTTP redirect if the pool is down:

     

     

    SOL7051: Configuring the BIG-IP system to use an alternate server if pool members are unavailable (Click here)

     

     

    Aaron