Thomas Kunz
Systems and Computer Engineering
372
Fast Recovery
nssthresh
=
min(cwnd,
receiver’s advertised window)/2 (at
least 2 MSS)
nretransmit the
missing segment (fast retransmit)
ncwnd = ssthresh + number of dupacks
nwhen a new ack
comes: cwnd = ssthreh
–enter congestion avoidance
Congestion window cut into half