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minnoce944's avatar
minnoce944
Icon for Nimbostratus rankNimbostratus
Dec 08, 2014

http redirect load balacing based on pool member health with session persistence

I have a customer that wants to load balancing cisco finesse agent desktop. The app itself isn't capable of being load balanced and they simply want to use the F5 as an intelligent redirector that po...
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minnoce944's avatar
minnoce944
Icon for Nimbostratus rankNimbostratus
Dec 08, 2014

I'm familiar with CARP, i can use this, although it would still need to be done within the irule.

 

A little bit more information on the app. The F5 will not be able to terminate the http session and route traffic to the appropriate pool member as in a traditional load balanced sense. The F5 will have a listening VIP, and issue an http redirect to the user for one of the pool members directly. After the redirect is issued, the user will talk directly to the target server for the duration of his session. When a new session starts, they will hit the VIP again, and if the same target server is online will be routed back to it (using CARP persistence).

 

My thought is the persistence would have to be built into the irule as the logic to issue an http redirect is performed there.

 

Brad_Parker's avatar
Brad_Parker
Icon for Cirrus rankCirrus
Dec 08, 2014
Interesting... Well try using CARP with a data group and iRule like the follow. It could fill the need you are looking for. I called the datagroup redirectsURLs_dg. when HTTP_REQUEST { HTTP::redirect [class lookup [LB::server name] "redirectsURLs_dg"] }