Installation and Upgrade > Advanced Deployment Considerations > Installing and Configuring a Cluster Windchill Environment > Server Cluster Configuration Overview > Configuring a Typical Server Cluster > Configuring a Load Balancing Router
  
Configuring a Load Balancing Router
The load balancing router takes requests from clients and distributes them among the available Windchill servers. This router may also act as a firewall, separating the Windchill cluster from the rest of the network. To the rest of the network, this router appears as a single Windchill server.
For information on configuring a load balancing router and load balancing software, see the Product Development System Configuration Notes:
http://www.ptc.com/view?im_dbkey=23005
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The load balancer configuration in the previous description refers to a particular type of load balancer—the Alteon load balancer. Instructions may differ for different load balancers. In addition, the load balancer in the PDS Reference Architecture only balances traffic to web servers. Since the PDS Reference Architecture implements a split web server system, the load balancing of traffic from the web servers to the servlet engine and the method servers is handled using AJP13 load balancing. For more information on load balancing with AJP13 workers for a Windchill cluster, see the Product Development System Configuration Notes available from the previous link.