TCP Retransmission, Reordering, or a Capture Artifact?
Compare controlled loss, reordering, and one filtered capture frame. Use both endpoint traces and queue evidence before diagnosing TCP loss.
TCP/IP
The transport and internet layers, read from real packets rather than diagrams. Articles tagged TCP/IP cover the handshake and teardown, sequence and window mechanics, UDP behavior, and how encapsulation looks on the wire.
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TCP Three-Way Handshake and Teardown, Captured
The three-way handshake is the first thing anyone learns about TCP and the last thing most people actually look at. SYN, SYN-ACK, ACK is easy to draw. What is harder, and far more useful, is reading a real