Session concentration can be used to:
Unnecessary sessions can increase connection and bandwidth costs. MSMQ session concentration reduces these costs by funneling connections through MSMQ servers.
MSMQ supports two types of session concentration: intra-site and inter-site. Intra-site session concentration typically reduces network bandwidth use within a site. Inter-site session concentration typically reduces the number of sessions between sites.
By loading specific servers with more independent clients, you can use session concentration to manually load or tune your MSMQ network. For example, all MSMQ independent clients in one department can be configured to send and receive all messages through a specific server or set of servers.