This session was recorded at Sharkfest 2012 - UC Berkely, CA
A customer is paying for a bandwidth of 45 Mbps but achieving a throughput of only around 1 Mpbs. Does the bandwidth provider limit the rate; is the server or the client not performing? With Wireshark software you can answer these questions and pinpoint the cause of the bottleneck. Windows Vista/7 has the TCP auto-tuning option enabled by default. But this does not deliver best performance under any circumstances. Using Wireshark's TCP Stream Graph you learn how to optimize TCP sessions and the impact of Window Scaling, Selective Acknowledges, TCP Chimney Offloading, Congestion Control etc. By analyzing trace files you will be able to find the TCP settings for an optimal transmission.
Rolf Leutert, a native of Switzerland, founded Leutert NetServices to provide network training, network troubleshooting, and consulting in 1988. Since then, the company has delivered hundreds of trainings for Sniffer University and other training organizations, and Rolf has attained both Certified Network Expert (CNX) and Sniffer Certified Master status.