Bug 203623 - [tcp] Congestion window set to 1mss on any type of loss
Summary: [tcp] Congestion window set to 1mss on any type of loss
Status: Closed FIXED
Alias: None
Product: Base System
Classification: Unclassified
Component: kern (show other bugs)
Version: CURRENT
Hardware: Any Any
: --- Affects Many People
Assignee: Hiren Panchasara
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2015-10-07 21:27 UTC by Hiren Panchasara
Modified: 2016-11-17 21:49 UTC (History)
0 users

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Description Hiren Panchasara freebsd_committer 2015-10-07 21:27:40 UTC
We set cwnd to 1mss when we detect loss via arrivals of 3 dupacks. That is wrong as we severely underutilizing network capacity by doing so.

Past discussion: https://lists.freebsd.org/pipermail/freebsd-net/2015-September/043249.html

Recent discussion: https://lists.freebsd.org/pipermail/freebsd-transport/2015-October/000010.html

Please comment on the recent discussion if you want to participate.