Investigating Selective Acknowledgements - Part 1: Simple SACKs (Wireshark and NetData) HD
Helping to understand TCP/IP SACK information in Wireshark by looking at NetData charts. Download the PDF here: http://www.NetworkDetective.com.au/downloads Source of trace file: http://packetlife.net/blog/2010/jun/17/tcp-selective-acknowledgments-sack/