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Sean Bruno authored
rrs - Lets make the LRO code look for true dup-acks and window update acks fly on through and combine. rrs - Make the LRO engine a bit more aware of ack-only seq space. Lets not have it incorrectly wipe out newer acks for older acks when we have out-of-order acks (common in wifi environments). jeggleston - LRO eating window updates Based on all of the above I think we are RFC compliant doing it this way: https://tools.ietf.org/html/rfc1122 section 4.2.2.16 "Note that TCP has a heuristic to select the latest window update despite possible datagram reordering; as a result, it may ignore a window update with a smaller window than previously offered if neither the sequence number nor the acknowledgment number is increased." Submitted by: Kevin Bowling <kevin.bowling@kev009.com> Reviewed by: rstone gallatin Sponsored by: NetFlix and Limelight Networks Differential Revision: https://reviews.freebsd.org/D14540
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