• Whitespace cleanup: 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): D18811. Michael will test.
• Improve RFC 6675 support: D18624, D18985. Reviews needed.
• Add RFC 6937 support: 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 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 D23364. Michael will review it.
• Epoch discussion (between Gleb, Jeffrey, and Hans Petter).

Next meeting is 13 Feb 2020 @ 1400 UTC.