I have got one question.
At http://www.jivesoftware.com/products/openfire/resources/requirements.jsp the section Hardware Recommendations says that it is possible to achieve 10,001 - 25,000 concurrent users on one machine, while having one connection manager on the same machine. I wonder how this might be possible, since XMPP needs one TCP-Connection for every XMPP-Session. As far as I know the number of open TCP-Connections is limited through its Operating System. Do I understand something totally wrong?
Thanks in advance!