Azure Load balancer traffic distribution

Question

Hi, I have a standard load balancer deployed with a backend pool consisting of two servers, inbound rule - 443. We have session persistence selected with Client IP. I want to know if by doing this all the traffic will go to only one server on which the client session was established first? does the affinity established between the client IP and backend servers expire or it is permanent(i.e all traffic from that particular client will go to the original server).

Answer 1

Hi @Shivam Singh ,

I want to know if by doing this all the traffic will go to only one server on which the client session was established first?

Yes, as long as the backend is available in Azure Load Balancer the established connection between client and same backend will be used. With Client IP distribution mode it doesn't matter which TCP protocol is used.

Reference: Session persistence

does the affinity established between the client IP and backend servers expire or it is permanent

An idle timeout can be configured: Set tcp reset and idle timeout

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Regards

Andreas Baumgarten