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Thread: Qos Explanations and Questions

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    Default Qos Explanations and Questions

    Hey guys, I'm trying to double check my Qos settings and I have questions. Here's my forum posts at Tp link but nobody really answered. Figured I'd pick your brains.

    "I'm trying to set up my Qos for League of Legends and noticed on other guides that uplink and downlink speeds have to be set at no more that 95% of actual bandwidth. On the other hand, their Qos uses percentages rather than actual speeds, so if the settings are too high, then Qos won't work.


    I think, based on the manual and settings, that because the rules use actual minimum and maximum speeds, that even if my bandwidth settings are slightly high, it won't effect how my Qos works as long as my minimum speeds are high enough. I'm not sure though so I'm hoping to get some feedback.

    Also, since I'm just curious, if I don't want a limit on the maximum bandwidth, would I leave it blank, or set it to the same values as the downlink and uplink speeds? Thanks in advance for any help!"

    Originally Posted by Tony Seaford
    Bandwidth Control is designed to minimize the impact caused when the connection is under heavy load. Using Bandwidth Control, we can assign a specific minimum or maximum bandwidth for each computer, which means they have less interference on each other.
    Is that what you need?
    How to use bandwidth control on TP-LINK wireless router? - Welcome to TP-LINK



    "Yes, I get that, but Qos on say DD-WRT is set to make sure that the only bottleneck is in your router. Then the settings are based on Percentages so that the highest amounts of bandwidth are dedicated to the applications/ports you want to have priority. Which is why if you don't set the speeds right, the qos doesn't work.

    Tp-link actually has you set minimum and maximum speeds over priorities. My isp speed is set to 25/6.5 mbps but I may only get 15/5 at any given time. But because of how the router sets the settings, I think I can set my speeds to the 100% of what my isp settings is set to, and my Qos will still work by setting my minimums to the point that I don't get lag. I'm not sure though and wanted some verification from either Tp-link or someone who understands Qos."
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    Default Re: Qos Explanations and Questions

    I'm not an expert and this is only a "guess" ... but I suspect "min" is the "reserved bandwidth"... meaning that if you have a 10-mbt connection... and you set something to have a "minimum" of 2mbt, and even if it's not being used... nothing else can use over 8mbt.
    max, is probably defining a "maximum" burstable bandwidth... meaning that if you set a maximum of 2mbt on a particular protocol/port/ip/whatever... then that protocol/port/ip/whatever can never exceed 2mbt... even if you have 10mbt of bandwidth.
    Setting up "traffic shaping" rules is quite of a challenge... there is no simple way to say "if there's enough bandwidth use 10mbt... otherwise reserve 2mbt for yourself". This is true in all aspects of networking... not just limited to tp-link devices.

    Always look beyond the limits...

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    Default Re: Qos Explanations and Questions

    Well, whatever rules I set seemed to work pretty good as long as my speed doesn't drop below 5mbps, at which I will have lag no matter what I do. (Isp is trying to solve that with me) Mainly, I'm trying to discern the difference between priority based Qos, versus this Tp link thing where you set minimum bandwidth speeds. The approach is so different between the two that it intrigues me.
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