The Dynamic Feedback allows servers to provide intelligent feedback about application health, availability, and load to SLB devices. It ensures that SLB devices send traffic to the correct server and do not route traffic to over-utilized applications or servers. DFP is the first protocol to allow servers to provide feedback and input into the SLB load-balancing decision. HTTP Redirect HTTP Redirect enables client to server persistence across HTTP and SSL connections. All HTTP requests that belong to the same transaction are directed to the same server.
Customers experience a smooth navigation around the web site.
This feature also provides rapid detection of server failures. In Stateless mode, the switches communicate only via HSRP hellmessages. In Stateful mode, the switches communicate via HSRP hellmessages and communicate status information. A secondary switch would be able to take over operation from a failed switch and rebuild the connection database. Redundant switches are not distance limited.