en Copyright 2015 Java http://172.16.0.5:8080/history/freebsd-12.1/sys/modules/tcp/rack/Makefile#401e8707 Take out the stack alias inadvertantly added by my commit.Reported by: Peter Lei List of files: /freebsd-12.1/sys/modules/tcp/rack/Makefile Thu, 07 Jun 2018 20:57:12 +0000 Randall Stewart <rrs@FreeBSD.org> http://172.16.0.5:8080/history/freebsd-12.1/sys/modules/tcp/rack/Makefile#89e560f4 This commit brings in a new refactored TCP stack called Rack.Rack includes the following features: - A different SACK processing scheme (the old sack structures are not used). - RACK (Recent acknowledgment) where counting dup-acks is no longer done instead time is used to knwo when to retransmit. (see the I-D) - TLP (Tail Loss Probe) where we will probe for tail-losses to attempt to try not to take a retransmit time-out. (see the I-D) - Burst mitigation using TCPHTPS - PRR (partial rate reduction) see the RFC.Once built into your kernel, you can select this stack by eithersocket option with the name of the stack is "rack" or by settingthe global sysctl so the default is rack.Note that any connection that does not support SACK will be kickedback to the "default" base FreeBSD stack (currently known as "default").To build this into your kernel you will need to enable in yourkernel: makeoptions WITH_EXTRA_TCP_STACKS=1 options TCPHPTSSponsored by: Netflix Inc.Differential Revision: https://reviews.freebsd.org/D15525 List of files: /freebsd-12.1/sys/modules/tcp/rack/Makefile Thu, 07 Jun 2018 18:18:13 +0000 Randall Stewart <rrs@FreeBSD.org>