Re: Burstiness WIth increased max cwnd.

From: Zachary Amsden ([email protected])
Date: Thu Feb 24 2000 - 21:24:42 EST

  • Next message: Kacheong Poon: "Re: Burstiness WIth increased max cwnd."

    > Do you mean the bursty traffic after there is a dropped segment? If there is
    > no dropped segment (including ACKs), TCP is as bursty as it is without window
    > scaling, sending 3 segments for every ACK (assuming delayed ACK for every 2
    > segments). I believe many implementations now have some simple form of
    > bursty control. And with SACK and various forms of NewReno, I think TCP is
    > not as busrty as it used to be when there is no window scaling.
    >
    > K. Poon.
    > [email protected]

    TCP is still bursty over high bandwidth-delay product links while inflating
    the congestion window. Basically everything in the window is trasmitted at
    once, and when ACKs arrive, the process repeats with a larger window. Thus
    larger windows cause the burstiness to proceed for longer amounts of time.

    -- 
    Zachary Amsden  [email protected]  (650) 933-6919  09U-510  Core Protocols
    



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