Dear all, Reading through the tcp blackhole detection code (support RFC 4821) in FreeBSD including the recent bug fixes, I am wondering why is it still not enabled in default? Given the fact that this implementation was a merge from xnu, and the xnu has enabled it in default, do we have a plan to enable it in default? Or is there any concern about the side-effect from it as performance regression against some false positive blackhole event like a temporary link flap, which is long enough to trigger a lower MSS but shorter than 6 RTO?
https://opensource.apple.com/source/xnu/xnu-1456.1.26/bsd/netinet/tcp_timer.c.auto.html << enabled in macOS 10.6 https://reviews.freebsd.org/rS322967 << bug fixes https://reviews.freebsd.org/rS272720 << merge from xnu Thanks, --Cheng Cui NetApp Scale Out Networking https://netapp-meeting.webex.com/meet/chengc _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
