nanog mailing list archives

RE: remember the "diameter of the internet"?


From: "Paul A Flores" <floresp10 () cox net>
Date: Mon, 17 Jun 2002 17:08:59 -0500




brett watson observed :

i sit behind cox-cable service at home, and in troubleshooting why my
connectivity is *so* horrible, i find the following traceroute.  does
anyone do any sane routing anymore?  does diameter matter (we
used to talk
about it a long, long while ago).  i guess i'm just old and
crusty but this
seems to violate so many natural laws.

i find in more random testing that i seem to be a minimum of
15 hops from
anything, and it's not just the # of hops, it's the *paths* i travel.
bouncing between two cities several times, on several
different provider
networks, from one border to the other.

wow.

-b

traceroute www.caida.org



Mine is equally bad... (also on Cox)
going from Oklahoma, to Dallas, to KS, to Chicago, BACK to Dallas, and
finally out to the left coast...

This leads me to believe that att/cox may not be as fully meshed with other
providers as they could be. (see various flames on peering for any number of
reasons why) One could also posit that you are seeing the results of
someone's idea of traffic engineering.

I can't imagine cable modem users creating a large demand for bandwidth to
caida.org anytime in the near future, so cox/att et. al. are not going to
fix something that isn't 'broken'. The altruistic days of 'running the
network together' couldn't be more dead and buried, IMHO.





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