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authorFlorin Coras <fcoras@cisco.com>2018-10-19 16:26:24 -0700
committerDamjan Marion <dmarion@me.com>2018-10-23 19:35:51 +0000
commitbf4d5ce58435d3f424749ff69650ea67ce778f04 (patch)
tree35470ff4780c23a60ff0bf8c2680c73be7f6978f /src/vnet/dns
parentf87eb9b3722f38112de6bc823527438e2a521bc0 (diff)
tcp: fast retransmit improvements
Patch is too large to be ported to 18.10 just days before release. - handle fast retransmits outside of established node and limit the retransmit burst size to avoid tx losses and worsening congestion. - in the absance of a tx pacer, use slow start after fast retransmit exists - add fast retransmit heuristic that re-retries sending the first segment if everything else fails - fine tuning Change-Id: I84a2ab8fbba8b97f1d2b26584dc11a1e2c33c8d2 Signed-off-by: Florin Coras <fcoras@cisco.com>
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