Re: Vulnerbilities of Interconnection

[Jared Mauch <jared () puck Nether net>]

On Fri, Sep 06, 2002 at 01:55:40PM -0400, batz wrote:
> On Fri, 6 Sep 2002, Pawlukiewicz Jane wrote:
> :would be difficult to reach. I'd have to run a model to be sure, but
> :every one of the major seven have rerouting methodologies that would
> :recover from the loss. And I don't think they exclusively peer at
>
> ASN's to "fail", then see who is still connected, but we are 
> still dealing with connectivity relatve to us and our peers, 
> even 5+ AS-hops away. 
>
> I would imagine this is one of the tasks CAIDA.org is probably 
> working on, as it seems to fall within their mission. 

        Coming up with the as interconnection data is actaully fairly
easy if you parse route-views data.  This obviously doesn't cover
every possible interconnection that exists but it does provide
a large swath of data to review for the interconnection
postulation.

        Looking at that data, (this is an old snapshot) the top ten
networks are:  (in #10->#1 order)

conn  ASN
----+----
 161 3356
 229 1
 242 2914
 248 209
 274 6461
 277 3561
 295 3549
 328 7018
 484 701
 493 1239

        - Jared

-- 
Jared Mauch  | pgp key available via finger from jared () puck nether net
clue++;      | http://puck.nether.net/~jared/  My statements are only mine.