sticky sessions

I have a very basic doubt related to this post. In Destination address affinity persistence , what is the destination IP for a client. Because as per my understanding i am not able to understand the use of this persistence profile when destiantion IP for a client is always load balancer.

 

 

My understanding for Source address affinity persistence says that when load balancer receives request from same client IP again then it forwards the request to the same pool member.

 

 

I am trying to understand Destination address affinity persistence on similar lines.