Basic TCP operations, sliding window, window sizes etc

[carl_townshend]

Hi All

Can anyone refresh my memory and tell me how the sliding window works in TCP,

and how we can view this in action using wireshark?

cheers

[Joseph W. Doherty]

Hmm, probably difficult to recap that in a short reply. There's lots of material on this subject that can be found on the Internet. You might start here: https://en.wikipedia.org/wiki/Sliding_window_protocol

As sliding window is managed by TCP algorithms on the hosts, it would be difficult to "view" it in Wireshark especially with a low RTT and no errors. You can "view" it if you analyze the timings on packet transmissions.