Arbitrary de-peering
William Waites
ww at styx.org
Mon Jul 28 15:24:54 UTC 2008
Le 08-07-28 à 17:12, nancyp at yorku.ca a écrit :
> ----Example: A York University professor was sitting at his desk at
> work in
> March 2008 trying to reach an internet website located somewhere in
> Europe.
> [...] York’s bandwidth supplier is Cogent which had severed a
> peering relationship
> with a bandwidth provider in Europe called Telia [...] which was the
> bandwidth
> network provider for the website that the Professor was trying to
> reach. [...]
> Cogent did not proactively inform the University of the issue and
> the loss of
> connectivity. Unreachability due to arbitrariness in network peering
> is unacceptable.
There must be more to this story. If Cogent de-peered from Telia the
traffic would
normally just have taken another path. Either there was a
configuration error of some
sort or else some sort of proactive black-holing on one side or the
other. As the
latter would be surprising and very heavy handed, I would tend to
suspect the former.
Peering relationships are made and severed all the time with no
particular ill-effects,
unless you can point to examples of outright malice (i.e. of the black-
holing kind) I
don't think there is much basis for any public policy decisions in
this example.
Unreachability due to configuation error is of course relatively
common; perhaps I am
wrong, but I don't think the CRTC would really have much to say about
that.
Cheers,
-w
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