How TCP Works - Selective Acknowledgment (SACK)
Let's dig into TCP SACK and see how it really works. Grab a copy of Wireshark and follow along with this video to learn more about this important TCP Option.
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Author Profile - Chris Greer is a Chief Packet Head for Packet Pioneer LLC and a Wireshark Network Analyst. Chris regularly assists companies around the world in tracking down the source of network and application performance problems using a variety of protocol analysis and monitoring tools including Wireshark. Chris also delivers training and develops technical content for Wireshark and several packet analysis vendors.