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Add PRR 6937bis heuristic and remove prr_conservative sysctl
Needs ReviewPublic

Authored by rscheff on Sun, Feb 21, 12:43 AM.

Details

Reviewers
kbowling
tuexen
jtl
rrs
thj
Group Reviewers
transport
Summary

Proportional Rate Reduction (RFC6937) is in the process
of becoming a standard. The difference to the experimental
RFC is a heuristic, which automatically chooses between
CRB and SSRB schema. Only when snd_una advances (a partial
ACK), SSRB may be used. Also, that ACK must not have
any indication of ongoing loss - using the addition of
new holes into the scoreboard as proxy for such an
event.

Diff Detail

Repository
rS FreeBSD src repository - subversion
Lint
Lint OK
Unit
No Unit Test Coverage
Build Status
Buildable 37230
Build 34119: arc lint + arc unit