Bell Canada outage?

Zachary McGibbon zachary.mcgibbon+nanog at gmail.com
Wed Aug 8 15:34:55 CDT 2012


Ouch!! That's a lot! What do you think the outcome of this will be?  What
do you think that Bell did/will do (hopefully) to fix this so it doesn't
happen again?

On Wed, Aug 8, 2012 at 4:31 PM, Andree Toonk <andree+nanog at toonk.nl> wrote:

> Further analysis shows that there were actually 107,409 prefixes
> affected of 14,391 unique origin ASn's.
>
> Interested if your prefixes was affected?
> I've uploaded a list of prefixes and ASn's that were leaked here:
> http://www.bgpmon.net/bell-leak.txt
>
> Cheers,
>  Andree
>
>
>
> .-- My secret spy satellite informs me that at 12-08-08 12:50 PM  Andree
> Toonk wrote:
> > Hi,
> >
> > .-- My secret spy satellite informs me that at 12-08-08 11:35 AM  Darius
> > Jahandarie wrote:
> >> On Wed, Aug 8, 2012 at 2:31 PM, Zachary McGibbon
> >> <zachary.mcgibbon+nanog at gmail.com> wrote:
> >>> Anyone at Bell Canada / Sympatico can tell us what's going on?  Our
> routing
> >>> table is going nuts with Bell advertising a lot of routes they
> shouldn't be
> >>
> >> Bell leaked a full table. To add to the fun, it seems that TATA took
> >> the full table and releaked it.
> >
> > A quick analysis leads met to believe AS46618 ( Dery Telecom Inc) is the
> > cause of this. AS46618 is dual homed to VIDEOTRON and Bell. What seems
> > to have happened is that they leaked routes learned from VIDEOTRON to
> Bell.
> >
> > Based on BGP data I see that at 17:27 UTC  AS46618 ( Dery Telecom Inc)
> > started to leak a 'full table', or at least a significant chunk of it to
> > its provider Bell AS577.
> > Bell propagated that to it's peers. Tata was one of the ones that
> > accepted all of that.
> >
> > I can see that Bell propagated at least 74,109 prefixes learned from
> > AS46618 to Tata. Tata selected 70,160 of those routes.
> >
> >
> > Cheers,
> >  Andree
> >
> >
> >
> >
> >
> >
> >
>
>
>


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