Balancing download of Exchange 2007 SP1 Hub Transport servers with Windows Network Load Balancing (Part 1)
exchange server 2007 hub transport servers (rtm and sp1) are capable of failover by default. that means that if you install multiple hub transport servers in an active directoryMicrosoft Forefront TMG - Webserver load balancing
this article will show you how to configure the load balancing webserver feature on forefront tmg server to perform server load balancing.