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Use PRR for ECN congestion recovery

Authored by rscheff on Feb 27 2021, 6:55 PM.



6937bis mentions that PRR can be used for ECN
congestion recovery also (and also during non-SACK
loss recovery). Implementing the ECN aspect as a
new feature.

Note that this requires the sysctl 6675_pipe to
be enabled.

Diff Detail

rG FreeBSD src repository
Automatic diff as part of commit; lint not applicable.
Automatic diff as part of commit; unit tests not applicable.

Event Timeline

  • set fack for old pipe in prr
This revision is now accepted and ready to land.Mar 25 2021, 2:35 PM
This revision now requires review to proceed.Mar 26 2021, 12:51 AM
  • add minimum cwnd of one segment
This revision was not accepted when it landed; it landed in state Needs Review.Mar 26 2021, 1:10 AM
This revision was automatically updated to reflect the committed changes.