Here are some good articles on networking.
Network Latency and Throughput
http://msdn2.microsoft.com/en-us/library/aa374342.aspx
Understanding Windows Server 2008 Networking and Network Access Protection – Chat Log
http://myitforum.com/cs2/blogs/scassells/archive/2007/07/16/understanding-windows-server-2008-networking-and-network-access-protection-chat-log.aspx
New Networking Features in Windows Server 2008 and Windows Vista
http://technet.microsoft.com/en-us/library/bb726965.aspx
Pondering Thought 