Re: why not AS number based prefixes aggregation

[Jeroen Massar <jeroen () unfix org>]

Christopher Morrow wrote:
> On Mon, Sep 8, 2008 at 9:20 AM, yangyang. wang <wyystar () gmail com> wrote:
> > Hi, everyone:
> >
> >     For routing scalability issues, I have a question: why not deploy AS
> > number based routing scheme?  BGP is path vector protocol and the shortest
> > paths are calculated based on traversed AS numbers. The prefixes in the same
> > AS almost have the same AS_PATH associated, and aggregating prefixes
> > according to AS will shrink BGP routing table significantly. I don't know
> > what comments the ISPs make on this kind of routing scheme.
>
> you might look at LISP, which is sort of like 'route by asn', with
> some other benefits added as well.
>
> <http://www.nanog.org/mtg-0706/Presentations/lightning-farinacci.pdf>

NANOG site changed, thus that is now:

http://www.nanog.org/meetings/nanog40/presentations/lightning-farinacci.pdf
and:
http://www.nanog.org/meetings/nanog41/presentations/lisp-nanog-abq.pdf

Also check http://www.lisp4.net/ as they are actually testing this in
live environments :)

Greets,
 Jeroen

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