Detailed tutorial for upgrading debian 7 to debian 8 and configuring bbr acceleration.

bbr acceleration is not described in detail here, but to enable the bbr acceleration kernel must be greater than 8.0. Here is a detailed tutorial for upgrading debian 7 to debian 8 and configuring bbr acceleration. View the distribution information of the Linux system

cat /etc/issue

Upgrade debian 7 system to debian 8

apt-get update && apt-get upgrade -y
sed -i 's/wheezy/jessie/g'/etc/apt/sources.list
apt-get update && apt-get upgrade -y
apt-get dist-upgrade -y
apt-get autoremove
apt-get clean

Restart the system and execute the following command.

mkdir bbr-tmp && cd bbr-tmp
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9.88/linux-headers-4.9.88-040988_4.9.88-040988.201803181131_all.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9.88/linux-headers-4.9.88-040988-generic_4.9.88-040988.201803181131_amd64.deb
wget http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.9.88/linux-image-4.9.88-040988-generic_4.9.88-040988.201803181131_amd64.deb
sudo dpkg -i * .deb

Kernel list connection, ubuntu source, debian common.

http://kernel.ubuntu.com/~kernel-ppa/mainline/

uname -r

to see if the system version kernel is 4.9

Modify the file below

/etc/sysctl.conf

Or execute the following command directly in the terminal

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


Execute configuration effective command



`sysctl -p`




See if bbr characters are returned



`lsmod | grep bbr`