How to open BBR

Andrew Ryan — Thu, 16 Jun 2022 07:13:35 +0000

Using TCP BBR on a network link with a certain packet loss rate can improve the transmission speed.

First uname -r to see if the kernel is >= 4.9
Enter the administrator terminal

su

run lsmod | grep bbr, if there is no tcp_bbr in the result, execute it first

modprobe tcp_bbr
echo "tcp_bbr" >> /etc/modules-load.d/modules.conf

run

echo "net.core.default_qdisc=fq" >> /etc/sysctl.conf
echo "net.ipv4.tcp_congestion_control=bbr" >> /etc/sysctl.conf

Save

sysctl -p

run

sysctl net.ipv4.tcp_available_congestion_control
sysctl net.ipv4.tcp_congestion_control

If the result has bbr, it proves that your kernel has bbr enabled

run

lsmod | grep bbr

If you see the tcp_bbr module, it means that bbr has been started

compress decompress commands

Andrew Ryan — Wed, 15 Jun 2022 04:27:41 +0000

all here

#*.zip
zip -r demo.zip demo
unzip demo.zip demo

#*.tar.gz
tar -zcvf demo.tar.gz demo
tar -zxvf demo.tar.gz demo

#*.tar.bz2
tar -jcvf demo.tar.bz2 demo
tar -jxvf demo.tar.bz2 demo

#*.tar.xz
tar -Jcvf demo.tar.xz demo
tar -Jxvf demo.tar.xz demo

#*.tar.Z
tar -Zcvf demo.tar.Z demo
tar -Zxvf demo.tar.Z demo

#*.tar.lz4
tar -I lz4 -cf demo.tar.lz4 demo
tar -I lz4 -xf demo.tar.lz4 demo

DEV Community: Andrew Ryan

How to open BBR

compress decompress commands