| Congestion
Control - Fast retransmit |
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| n | Fast
retransmit occurs when multiple (>= 3) |
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| dupacks
come back |
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| n | Fast recovery follows fast retransmit |
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| n | Different
from timeout : slow start follows timeout |
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| – | timeout
occurs when no more packets are getting across |
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| – | fast
retransmit occurs when a packet is lost, but latter |
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| packets
get through |
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| – | ack
clock is still there when fast retransmit occurs |
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| – | no
need to slow start |
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