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Cwnd Ssthresh Start Sender Increase Tcp Congestion Control

Front TCP: Congestion Control: packet loss
Back - ssthresh (slow start threshold) is set to 1/2 cwnd

Timeout:
Reduce sender rates to a minimum and exponentially increase them.
- cwnd = 1
- Slow start
For 3 double ACKs:
TCP Tahoe: As with Timeout
TCP Reno: halve the sender rate, then increase it linearly again
- cwnd = ssthresh
- Fast recovery

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