Hardware load balancing is supported for the server roles specified in this section. Software-based network load balancing, including Windows Network Load Balancing (NLB), is not supported for any servers running Office Communications Server.

Load balancers must be configured for the ports that are used by any applications that run on the servers behind the load balancers.

For details about load balancer requirements and configuring load balancing, see Planning Load Balancingin the Planning and Architecture documentation.

Office Communications Server

The following Office Communications Server configurations support hardware load balancing:

Communicator Web Access

Hardware load balancing is supported and required for the following configuration: