Uploaded November 2021 | Updated September 2026, 4 hours ago

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TCP Congestion Control (the send window) can be a tough concept to understand when analyzing flows. In this video we dive into the congestion window and learn how it grows, what its limit is, and what happens when we hit network congestion.

Let's keep it simple!

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Hope this helps Packet People!

Chapters:
0:00 Intro
1:05 The RFC
1:58 Receive Win vs Send Window
2:50 Hands On with TCP Congestion Control
6:31 How the CWIN Grows
9:17 What limits the send window?
12:57 Rebuilding Congestion Win after Loss
14:14 Congestion Control Recap