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Differential D47541

tcp: fix cwnd recalculation during limited transmit
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Authored by rscheff on Nov 13 2024, 6:58 PM.
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cc
glebius
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transport
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rG8f5a2e216f4c: tcp: fix cwnd recalculation during limited transmit
Summary

During limited transmit, one additional segment should be
sent for each incoming ACK. As tcp_output considers the
SACKed bytes, adjust for this in the limited transmit
recalculation.
Also, in case snd_nxt is lower than snd_max (after an RTO),
let tcp_output only consider retransmissions from the SACK
scoreboard when again in fast recovery mode, or dupthresh
dupacks have been seen.

PR: 282605

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rG FreeBSD src repository
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sys/
netinet/
2 lines
3 lines

Diff 146453

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sys/netinet/tcp_input.c

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sys/netinet/tcp_output.c

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