Netflix proposes implementation of TCP BBR congestion control algorithm for FreeBSD

For FreeBSD by Netflix prepared by implementation of the TCP congestion control algorithm BBR (Bottleneck Bandwidth and RTT), which allows you to significantly increase bandwidth and reduce data transmission delays. BBR uses link modeling techniques that predict available throughput through successive checks and round-trip time (RTT) estimation, without bringing the link to the onset of packet loss or transmission delays.

Source: opennet.ru