Bandwidth sharing within priority level



  • Hello,

    I am looking at Pfsense for doing some QoS.

    In the current situation, we have an "Admin LAN" that includes all of the staff's computers. This LAN has a bad tendancy to eat all the Internet bandwidth for random downloads. We have decided to put some QoS on this LAN. We have a Fortinet box doing this at the moment.

    The problem with the Fortinet box is that is doesn't split the bandwidth in a very smart way. Basically if someone downloads a huge ISO file, they get all the bandwidth and everyone else has slow or no Internet access. This is not a good solution at all since people can't work anymore…

    Would this be the case if I apply QoS with Pfsense ? The Admin LAN would be a priority class. Would the bandwidth be shared equally amongst all the computers in this LAN ? Is there is special mechanism ?

    Thank you in advance for your help,

    Antoine


  • Banned

    Traffic shaper in PFSense could be a solution for this….



  • Thank you for your quick answer.

    There is still one question : Would the bandwidth be shared equally amongst all the computers in this LAN ?



  • Only 2.0 sorry.



  • @tekzone:

    Hello,

    I am looking at Pfsense for doing some QoS.

    In the current situation, we have an "Admin LAN" that includes all of the staff's computers. This LAN has a bad tendancy to eat all the Internet bandwidth for random downloads. We have decided to put some QoS on this LAN. We have a Fortinet box doing this at the moment.

    The problem with the Fortinet box is that is doesn't split the bandwidth in a very smart way. Basically if someone downloads a huge ISO file, they get all the bandwidth and everyone else has slow or no Internet access. This is not a good solution at all since people can't work anymore…

    Would this be the case if I apply QoS with Pfsense ? The Admin LAN would be a priority class. Would the bandwidth be shared equally amongst all the computers in this LAN ? Is there is special mechanism ?

    Thank you in advance for your help,

    Antoine

    It should work fine if you just fire up the traffic shaper to give priority to the Admin LAN and set your WAN/ LAN root queue bandwidth properly.  You must set it to what you can get, not what you theoretically should get.  To be safe, set to 90% of what your connection is rated for.

    For whatever the reason, I've found that Linux based routers don't handle situations like that well.  Even those that use HFSC don't seem to queue the requests properly.  A single bandwidth hog slows down the rest.

    pfSense seems to handle this very well even without trying to limit/ prioritize per host.  It just seems to split the bandwidth quite evenly as it goes.


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