Lync Server 2010
Topic Last Modified: 2011-02-16
Stress testing included the following:
25,000 concurrent users were using the servers.
6,000 users were in IM sessions, with 50% of those IM sessions having more than two users.
3000 users were in peer-to-peer A/V calls.
3000 users were in A/V conferences.
500 active users were in application sharing conferences.
3000 active users were in data collaboration conferences.