Forum Discussion

Hamada_Tabosha_'s avatar
Hamada_Tabosha_
Icon for Nimbostratus rankNimbostratus
Nov 12, 2013

Persistence and loadbalancing

Dears , I have a 2 tier application , web tier and application tier , the web trier servers are loadbalanced through F51 and the application tier servers are loadbalanced through F52 , so the user hi...
Kevin_Stewart's avatar
Kevin_Stewart
Icon for Employee rankEmployee
Nov 13, 2013

If I understand you correctly, you have the following configuration:

client - F5 - web tier - F5 - app tier

And that these are separate physical F5s, and that you need to maintain some form of persistence at the app tier, correct? If so, the trick to this is to have something that permeates the first layer to reach the second. This could be something consistent in the payload from the web tier to the app tier (ex. a JSESSIONID), or you could potentially turn off SNAT on the external F5 and use client source address for persistence on the inner tier.