/24 multihoming issue

Christopher L. Morrow christopher.morrow at mci.com
Thu Oct 20 06:07:55 UTC 2005



On Wed, 19 Oct 2005, Kyaw Khine wrote:

> Hmmm..
> When /24 gets to those ISP (direct connected to
> 19094/telcove), shouldn't they prefer 701/mci path?

depends on their relationship with 701 probably, and their internal
decision criteria... they might filter or pref or... who knows :(

> AS-PATH is longer through 19094 than through 701 ...
> provided that those ISP are accepting/receiving path
> from 701.

yup, looking at route-views.oregon-ix.net there seem to be plenty of paths
(47 total reported)

Did you open a support ticket with 701?

>
> --- "Christopher L. Morrow"
> <christopher.morrow at mci.com> wrote:
>
> >
> > On Thu, 20 Oct 2005, Jon Lewis wrote:
> >
> > >
> > > On Wed, 19 Oct 2005, Kyaw Khine wrote:
> > >
> > > >
> > > > routeviews is seeing both paths.
> > > >
> > > > 64.9.17.0/24
> > > > AS 33105
> > > >
> > > > ISP-A = 701 :)
> > > > ISP-B = 19094
> > >
> > > You might talk to 701 about why for instance, all
> > I see is your
> > > prepended path via 19094 through 3356, 6461, 4323,
> > and 19962.
> > >
> > > Maybe 701 is only propogating your route to
> > customers?
> >
> > shouldn't be the case, it's not looking like it's
> > tagged anything
> > 'special'. :) the other folks might see telecove as
> > a better path
> > (assuming telecove/19094 is also multihomed to these
> > other asn's you have
> > above)
> >
>
>
>
>
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