Network termination

The front-end load balancer provided in ISAM is a network terminating load balancer.

Clients send requests directly to the virtual IP address of the front-end load balancer. The front-end load balancer processes each request.

The load balancer terminates the network connection of the request from the client. It then creates a new network connection to forward the load-balanced request to the appropriate backend server.

The web reverse proxy server receives the request from the front-end load balancer and processes it. The web reverse proxy server sends its response back to the front-end load balancer. The load balancer acts as a proxy and sends the information back to the original client.

The point of SSL termination depends on the load balancing layer. In a layer 4 configuration, WebSEAL is responsible for the SSL termination. In a layer 7 configuration, SSL is terminated by the load balancer.