Persistence
Session persistence, also known as stickiness, is a mechanism that ensures a client is connected to the same reverse proxy server during a session.
Layer 4 load balancers can extract the client IP address from the TCP header to maintain persistence. Layer 7 load balancers can use an HTTP cookie to provide stickiness. Subsequent requests from a particular client are routed through the same processing path and use the same WebSEAL session.
Parent topic: Front-end load balancer