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Cwnd Congestion Double Mss Ack Tcp Control Fast

Front TCP: Congestion Control: Fast recovery
Back After packet loss by 3 double ACKs an attempt is made to reach a high transmission rate again as quickly as possible

- cwnd = ssthresh (1/2 cwnd before loss) + 3 MSS
- Procedure: For each received double ACK
Cwnd increased by MSS
- Change to congestion avoidance when new ACK arrives

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