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  • Timo Teräs's avatar
    main/iproute2-qos: add htb burst and fix privileged class ceiling · 53299ce1
    Timo Teräs authored and Natanael Copa's avatar Natanael Copa committed
    The HTB classifier uses a burst parameter to figure how much of
    packets can be queued when the class is lending from other classes.
    It should be set automatically by tc / kernel, but appears not be
    set, so set it explictly. This fixes htb class not getting full
    speed if difference of ceil and rate is large.
    
    This also changes Privileged class to get ceil of the total
    bandwidth instead of the previous hard limit of guaranteed rate.
    While, it is consider good practices for Privileged class to have
    hard ceil less than max. speed, it will cause problems links with
    asymmetric speeds (e.g. ADSL 24M/1M cannot gain full download
    speed if Privileged class is limited this heavily). It might be
    a good idea to later have the hard ceiling configurable, but for
    now it's better to ceil it to wire speed.
    (cherry picked from commit 537214e7)
    53299ce1