Computer Networking › Section C · The transport layer › Topic C.7
TCP congestion control
TCP has no router telling it how fast to go, yet millions of connections share the internet without collapsing it. Each sender probes for spare capacity, backs off when it sees loss, and the result is the famous sawtooth of additive increase and multiplicative decrease.
In this topic
- The congestion window
- Three guiding rules
- Slow start
- Congestion avoidance and fast recovery
- Worked example: a Reno trace
- AIMD and the sawtooth
- Worked example: sawtooth throughput
- ECN and delay signals
- Fairness
- Common mistakes to avoid
- Key takeaways
This topic is part of Wuanberri Pro. Checking your access…