QOS Order

Discussion in 'Tomato Firmware' started by dankim831, Dec 9, 2006.

  1. dankim831

    dankim831 Network Guru Member

    Do the different QOS classes have a particular order in which they are prioitized?

    I currently have all the classes set to 60% maximum bandwidth except Highest and Class A.

    Would Class A have a higher priority compared to the Medium class for example because it has higher bandwidth limits?

    Or would Medium have a higher priority over Class A because it is higher on the list?
  2. GeeTek

    GeeTek Guest

    The QOS "Basic Settings" page is where you define the limits of the class categories, and select strict rule order or not. The rules established on the QOS "Classification" page determine what traffic is assigned to which category, and this assignment may or may not be in order, depending on your selection in the first page for strict rule order. If you use strict rule order, you would want to put port 80 rule near the top of your rules, and assign it to a good fast class of service. Near the bottom, create a P2P catch all rule and assign it to a very low service class. Let the Catch all High ports come last on the list. If you are trying to control numerous users, or several with file sharing programs, you may want to limit port counts as well.
  3. dankim831

    dankim831 Network Guru Member

    Sorry I don't think i was clear in my question.

    Hopefully a screen shot will help.


    As you can see "Class A" and "Highest" have the most outbound bandwidth.
    I did this to reserve certain applications higher amounts of outbound bandwidth such as RDP.

    So the question is, would a connection in "Class A" have a higher priority over a connection in "High" because it has been allocated a higher amount of bandwidth?


    Would "High" still be given more priority over "Class A" because it comes first in the order or classes?
  4. sorian25

    sorian25 LI Guru Member

    Your original question was clear enough and Geetek's answer still applies, but, I will see if I can clarify.

    Priority is not set on the page in your screenshot. The only thing that page is for is assigning classes a certain percentage of the bandwidth. The Classification page is where you set priority. You can set priority based on mac address, source or destination port, or many other options. You can have something in Class E have higher priority than anything else if you wanted to.
  5. GeeTek

    GeeTek Guest

    DanKim, the types of service must be assigned to some class type. The class of service that you assign to any class type is the speed that it will be regulated to. I would assume that in the event of bandwidth saturation that the ratio of priorities would apply to the traffic, but I do not know that for sure yet. In your question, the answer is no, becasue class "A" has no traffic assigned to it at all by default.
  6. dankim831

    dankim831 Network Guru Member

    thanks guys. i just realized where my thought process was off.

    makes perfect sense now.
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