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Slow start happens during several scenarios:
- When you start a connection
- When you experience a Timeout
In this initial phase we increase the congestion window for every packet that is ACKed.
| packet # ACKed | Congestion Window | | 1 | 2 | | 2 | 3 | | 3 | 4 | |...|...|
The results in an exponential growth
| Number of packets sent | Congestion window size |
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