Forum Discussion

Grant_Mitchell_'s avatar
Grant_Mitchell_
Icon for Nimbostratus rankNimbostratus
Mar 03, 2014

Mark an LTM virtual down when pool in an irule is down.

We have and LTM virtual with an attached pool and an irule that references another pool. When the members of the attached pool are down but the pool in the iRule is up, the virtual stays up. Is there...
application delivery
availability
devops
iRules
LTM
Kevin_Stewart's avatar
Kevin_Stewart
Icon for Employee rankEmployee
Mar 04, 2014

I think it really depends on what you mean by "down". If you mean that you don't want to send any traffic to the iRule-referenced pool based on availability of the attached pool, then you could use the active_members command:

 

https://devcentral.f5.com/wiki/iRules.active_members.ashx

 

If, however, you need the VIP to be disabled completely, perhaps so that GTM will see it as down, then you could use an iCall (or raw user_alert.conf script) to effectively disable the VIP by triggering TMSH commands on Syslog monitor events.

 

https://devcentral.f5.com/questions/clearing-machine-cache