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