QoS and burstable networks (Comcast PowerBoost)

Discussion in 'Tomato Firmware' started by bingho, Jun 27, 2008.

  1. bingho

    bingho Network Guru Member


    I know this has been discussed peripherally couple of times already, but I am about to move to a Comcast HSI 6 mbps download/1 mbps upload provisioned connection with PowerBoost feature. PowerBoost downloads 12 mbps for 10 megabytes, then degrades to provisioned speed. Upload prior to 1 mbps upgrade few weeks ago was 1 mbps for 5 megabytes before degrading, not sure if that has been bumped to 2 mbps.

    As I understand it, QoS as is traditionally implemented (including Tomato) doesn't account for burstable network connections.

    I noticed that OpenWRT had a ticket 1618 open to discuss adding a connbytes feature to the QoS scripts to allow for burstable connections.



    How hard would it be to implement this under Tomato? I don't know much about rolling my own mod or modifying the official firmware, but I don't mind accessing the command line and doing it myself if it's pretty straightforward. Also, I don't know much about Linux qdisc but I'm curious if burstable network changes can be tuned with qdisc because the documentation discusses promising things like "burstable bandwidth."

  2. bripab007

    bripab007 Network Guru Member

    Does anyone have any updates on this sort of fix/patch for Tomato users with "burstable"/Powerboost/variable bandwidth connections from their ISPs?

    I'm sure there's more users now with this sort of variable connection than there's ever been, so surely someone has figured out a solution, right? :)
  3. Toastman

    Toastman Super Moderator Staff Member Member

    There have been several threads in this forum on the subject in the past, but never seen any modes discussed for Tomato. I think there were some scripts written in an attempt to do something, but I have no idea if they were successful. Try the search facility ...
  4. bripab007

    bripab007 Network Guru Member

    Yeah, I was a participant in one of the last threads about this...I've been here long enough to understand how to use the search facility ;-)

    Yeah, I found several old threads (using the search facility!) regarding this very topic.

    So, do you think it's possible I could use that second OpenWRT patch in Tomato? Problem is, I don't really understand all the language in that patch.
  5. Toastman

    Toastman Super Moderator Staff Member Member

    Almost certainly you could use ***something like*** the same script - if it doesn't work as it is, it may be because some function required by a particular script is not compiled into the version of the router software you are using. Like you, I don't understand a lot of the patches either... but there's a lot of guys on here who do !
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