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robert_carney's avatar
robert_carney
Icon for Nimbostratus rankNimbostratus
May 20, 2016

Irule to force node down anytime anther is up

I'm trying to set a Irule for a VIP that has many members that are setup in pairs to mark 1 member down if its partner is up. trying something like   when LB_SELECTED { if { [LB::status node 1.2.3...
application delivery
iRules
LTM
cjunior's avatar
cjunior
Icon for Nacreous rankNacreous
May 20, 2016

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