Topic Last Modified: 2010-07-18
The only components required for instant messaging (IM) and presence are:
- Your organization’s Front End Servers or Standard Edition
Servers. IM and presence capabilities are always enabled on these
servers.
- A load balancer, if you have a pool of multiple Enterprise
Edition Front End Servers. You can use either a hardware load
balancer for all load-balancing traffic, or use DNS load balancing
for most of your traffic. For more information about DNS load
balancing, see DNS Load
Balancing.
A Front End Pool topology for Enterprise Edition is a group of up to 10 Front End Servers, along with one or more database servers.