[e2e] two questions about the Internet

George Michaelson ggm at dstc.edu.au
Thu Mar 15 16:23:51 PST 2001


  Srini Seshan (when he was here at Watson) had some packet trace data from 
  the 1996 Olympic Web server, but it's a bit old now.  The technique was 
  similar to what Mark Allman did.  For the record, though, it had:
  
  - 25% of the RTTs < 115 ms
  - 50% of the RTTs < 338 ms
  - 75% of the RTTs < 778 ms
  
  The RTTs are obviously going to vary depending on what kind of
  connection you have (T3, OC-768) as well as where your clients
  are (NY, CA, Greece).
  
  -Erich

The 96 Olympics were hosted behind multiple backends, geographically
distributed? I thought Nagano was, I went to a seminar by IBM on it.

Because if so, there were presumably frontend boxes making decisions
on backend server, which would either intuit best-fit path or else
map it into some simple model like BGP AS or link-based region and
so skew RTT in favour of shorter-hop and/or ligher-load hosts.

-George
--
George Michaelson         |  DSTC Pty Ltd
Email: ggm at dstc.edu.au    |  University of Qld 4072
Phone: +61 7 3365 4310    |  Australia
  Fax: +61 7 3365 4311    |  http://www.dstc.edu.au



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