Irule to force node down anytime anther is up

Hi,

 

If you could treat it as member pool (ip + port), I think you could try priority group or a reverse monitor to standby peer (e.g. where member B is down when specific monitoring to alias A is up).

 

So, if you really need to do this in an iRule, I think that events HTTP_REQUEST or CLIENT_ACCEPTED are more appropriated to do that since the event LB SELECTED occurs when the member has already been done.

 

I think too is not needed to down server B even you will check if server A is UP and being direct to him. Was this answer useful?

 

Respectfully

 

Simple hack assuming you have 2 members (ip-1 & ip-2) in the pool:

when HTTP_REQUEST {

      if { [LB::status pool WEB_POOL member $ip-1 $port] eq "up" } {
      LB::down pool WEB_POOL member $ip-2 $port
      }
}