How to Boost Linux Server Internet Speed with TCP BBR

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Aaron Kili

Aaron Kili is a Linux and F.O.S.S enthusiast, an upcoming Linux SysAdmin, web developer, and currently a content creator for TecMint who loves working with computers and strongly believes in sharing knowledge.

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6 Responses

  1. Bytesplit says:

    @Tomas @Aaron,

    there is a little bit of a miss-understanding here or at least you are missing some important details. If you have a 100Mbit line you could saturate it with approx. 10MB/sec at best. If you are at the opposite of the globe you will get packet loss and longer packet traveling times (RTT). Then your speed will perhaps max. out at 2-3MB/sec due to how TCP was designed.

    BBR will improve on multi-hop network performance, e.g. when your server is in Asia and your clients are in Europe or US. Or satellite links or HSDPA slow wireless networks or…

    It will NOT increase the physical output at the first hop from your server to your ISPs network port!

  2. Tomas says:

    A couple of questions if I may. Explanation is a bit vague therefore any clarification is really appreciated.

    So I’ve got a dedicated HP server with a 100Mbps dedicated network link (with a 10Gbps network card). When I use the Speedtest-CLI utility I get the result that’s very close to 100Mbps – all good.

    The article says that I can boost my Linux server internet speed by using TCP BBR congestion control (I have a suitable kernel already). Are you suggesting that I can go above 100Mbps if I use TCP BBR?

    • Aaron Kili says:


      Yes, we are suggesting that you can go above 100Mbps if you use TCP BBR, it is designed to increase server speeds on the Internet. BBR is already widely deployed on servers at Google where it was developed.

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