Fundamentals · Hard · Free
What is TCP congestion control (slow start, congestion avoidance)?
FresherFundamentalsComputer Networks
Congestion control
- Slow start: cwnd grows exponentially until threshold.
- Congestion avoidance: linear increase probing capacity.
- Loss: treat as congestion signal—cut cwnd (Reno/CUBIC).
Goal: share bottleneck links fairly without collapse.
High-level is enough for fresher—don't derive equations unless asked.