Figure 21–10 shows a configuration consisting of two multiplexors installed on two separate hosts. The Instant Messaging server is installed on a different host. This configuration enables you to place a multiplexor outside your company’s firewall. Installing multiplexors on multiple hosts distributes the load of the Instant Messaging server across multiple systems.
The multiplexor can be resource-intensive, so putting it on a separate host can improve the overall performance of the system.