Attendees: Michael, Richard, Gleb, Jeffrey, Hans Petter

===== Discussion =====
  * Whitespace cleanup: [[https://reviews.freebsd.org/D22704|D22704]]. rrs@ and tuexen@ reviewed.
    * We had extensive debate about this. jtl@ will send an email to kib@ and glebius@ asking for their opinion.
  * Cleanup (combine sack_newdata and snd_recover and reclaim one 32-bit integer): [[https://reviews.freebsd.org/D18811|D18811]]. Michael will test.
  * Improve [[https://tools.ietf.org/html/rfc6675|RFC 6675]] support: [[https://reviews.freebsd.org/D18624|D18624]], [[https://reviews.freebsd.org/D18985|D18985]]. Reviews needed.
  * Add [[https://tools.ietf.org/html/rfc6937|RFC 6937]] support: [[https://reviews.freebsd.org/D18892|D18892]]. Richard plans to test more before proposing we commit this. Also, needs reviews.
  * No update on blackhole detection.
  * Fix RTO timer during SACK retransmissions [[https://reviews.freebsd.org/D23160|D23160]]: Idea is correct; questions about implementation. JTL and Michael will try to look.
  * Richard reports an interoperability problem between Linux and %%FreeBSD%% when using TCP with ECN. A patch is available at [[https://reviews.freebsd.org/D23364|D23364]]. Michael will review it.
  * Epoch discussion (between Gleb, Jeffrey, and Hans Petter).
===== Next Meeting =====
Next meeting is 13 Feb 2020 @ 1400 UTC.