August 22, 2017

visit https://www.elrepo.org

rpm –import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org

Centos6:rpm -Uvh http://www.elrepo.org/elrepo-release-6-8.el6.elrepo.noarch.rpm

Centos7:rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm

yum –enablerepo=elrepo-kernel install kernel-ml -y

vi /boot/grub/grub.conf

default=0

vi /etc/sysctl.conf

net.core.default_qdisc=fq
net.ipv4.tcp_congestion_control=bbr

reboot

sysctl net.ipv4.tcp_available_congestion_control

The output should resemble:
net.ipv4.tcp_available_congestion_control = bbr cubic reno