
68 2.3 Scalable Exchange 2003 Architecture
routers. However, if you anticipate that your workload is going to increase
such that you will need to add an unforeseeable number of machines, I
strongly recommend using routers of this type. They can perform functions
other than load balancing, such as SSL tunneling or bridging, in a more
scalable way that independent servers, which, regardless of their running
operating system, need to be properly secured.
Depending upon the type of router, you may get a simple and straight-
forward load-sharing mechanism (the router balances the connections
among the servers), as opposed to a true load balancing, where the ...