North American Network Operators Group

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Re: Questions about Internet Packet Losses

  • From: Vern Paxson
  • Date: Tue Jan 14 02:31:12 1997

> So you'll note that there are very clear spikes at 552 and 576 total packet
> size.  Further, note that the curve falls off _extremely_ rapidly.  From
> that, I argue that case (2) _cannot_ be the case because any type of random
> distribution would be much smoother.

(2) is a random distribution plus some spikes, plus some modality due to
TCP's that can only generate packets of <= N bytes for different popular
MSS's.  So I think it still works (but will save more detailed analysis
till later ....).

> 2) What OS is using a 512 MSS?