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Doc about hardware offloading unclear

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  • ?
    A Former User
    last edited by A Former User Jan 25, 2022, 2:00 PM Jan 25, 2022, 2:00 PM

    Hi,

    I read in the docs the following:

    Another item to check is under System > Advanced on the Networking tab. Ensure that the boxes are checked for Disable hardware TCP segmentation offload and Disable hardware large receive offload.
    Regarding LRO there is an explanation- some drivers are broken. Well, could we get a list of driver which are broken?

    Regarding TCP segmentation offload- why is it considered to be faster when this is DISabled?

    I just do not understand why offloading tasks to hardware should slow down processing....

    Thanks for explaining me!

    /KNEBB

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    • J
      jimp Rebel Alliance Developer Netgate
      last edited by jimp Jan 25, 2022, 5:44 PM Jan 25, 2022, 5:43 PM

      It's explained in the doc that covers the page where the settings are:

      https://docs.netgate.com/pfsense/en/latest/config/advanced-networking.html#hardware-tcp-segmentation-offloading

      https://docs.netgate.com/pfsense/en/latest/config/advanced-networking.html#hardware-large-receive-offloading

      tl;dr they are faster if you are an endpoint but slower when acting as a router/firewall.

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      ? 1 Reply Last reply Jan 26, 2022, 12:41 PM Reply Quote 1
      • ?
        A Former User @jimp
        last edited by Jan 26, 2022, 12:41 PM

        @jimp
        Thanks a lot! I have not seen this in the docs.

        Sorry, my bad.

        Anywayys- great information and explanation on the place you linked.

        Going to disable now ;)

        /KNEBB

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