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xterat/enable-bbr-on-ubuntu-16.04.md

Created February 23, 2018 08:06
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enable-bbr-on-ubuntu-16.04.md

Enable bbr on Ubuntu 16.04

  1. Make sure kernel version is 4.9 or newer:

    uname -r

    Install Hardware Enablement Stack (HWE) to update kernel automaticly:

    apt install --install-recommends linux-generic-hwe-16.04

  2. Enable bbr:

    modprobe tcp_bbr
echo "tcp_bbr" >> /etc/modules-load.d/modules.conf
echo "net.core.default_qdisc=fq" >> /etc/sysctl.conf
echo "net.ipv4.tcp_congestion_control=bbr" >> /etc/sysctl.conf
sysctl -p

  3. Check if bbr is enabled:

    sysctl net.ipv4.tcp_available_congestion_control
sysctl net.ipv4.tcp_congestion_control
lsmod | grep bbr
@bumaociyuan
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How To Update Linux Kernel In Ubuntu

@XueshiQiao
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Using How to Upgrade Linux Kernel in Ubuntu 16.04 Server to upgrade kernel works too

@SheProCode
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SheProCode commented Jan 19, 2021 •
edited

Need reboot after Step 1: reboot or sudo reboot

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ghost commented Nov 13, 2021

Need reboot after Step 1: reboot or sudo reboot

I don't think that's needed after sysctl -p

@Sparklingx
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How can I enable other variants of BBR like Tsunami or BBR+ ?

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