Network 2026-01-09

BBR: TCP Congestion Control Optimization

Enable BBR

echo 'net.core.default_qdisc=fq' | sudo tee -a /etc/sysctl.conf
echo 'net.ipv4.tcp_congestion_control=bbr' | sudo tee -a /etc/sysctl.conf
sudo sysctl -p

Verify

sysctl net.ipv4.tcp_congestion_control
# Should output: bbr

BBR significantly improves network throughput, especially on high-latency international links like CN2/9929.

#Sudofree#BBR