[42924] in North American Network Operators' Group

home help back first fref pref prev next nref lref last post

Re: Points of Failure (was Re: National infrastructure asset)

daemon@ATHENA.MIT.EDU (Joseph T. Klein)
Tue Sep 25 19:43:46 2001

Mime-Version: 1.0
Message-Id: <p05101003b7d6c65ad7bb@[209.207.60.21]>
In-Reply-To: <Pine.GSO.4.40.0109251308050.23919-100000@clifden.donelan.com>
Date: Tue, 25 Sep 2001 23:43:17 +0000
To: Sean Donelan <sean@donelan.com>, bmanning@vacation.karoshi.com
From: "Joseph T. Klein" <jtk@titania.net>
Cc: nanog@merit.edu
Content-Type: text/plain; charset="us-ascii" ; format="flowed"
Errors-To: owner-nanog-outgoing@merit.edu


Some cites have peering and co-locations diversity, some don't.

InfoMart & Westin Building come to mind. Those should rank high
by your list.

At 13:19 -0400 25-09-2001, Sean Donelan wrote:
>On Mon, 24 Sep 2001 bmanning@vacation.karoshi.com wrote:
>>  > > When 25 Broadway failed, approximately 1% of the global Internet
>>  > > routing  table also disappeared.  Which I would guess qualifies it
>>	From what point did 1% of the routing table disappear?
>>	Was the same visable from multiple, diverse points?
>>
>>	I expect that from some perspectives, 100% of the routing
>>	table disappeared and some places didn't even see a blip.
>
>The Internet as we know it is just a collective illusion.
>
>You are correct from one side of the partion, 99% of the routes
>disappeared and on the other side 1% of the routes disappeared.
>I checked four different BGP feeds from a mix of providers, and
>they were fairly consistent.
>
>But percentage of routes is just one way to measure "importance."
>It may not be the best way.  Other methods include
>
>    1. Number of stock options owned by Very Important People
>    2. CAIDA skitter traces of routers of confluence
>    3. Number of OC-192 links in a building
>    4. Number of "Tier 1" providers in a building
>    5. Government fiat
>    6. Wait for the building to fall down and see what happens
>
>Assuming there are locations more impotant than others, should
>we do anything?  Or should we just hope no one else figures out
>where they are?


-- 
Joseph T. Klein                                         +1 414 915 7489
Senior Network Engineer                                 jtk@titania.net
Adelphia Business Solutions                joseph.klein@adelphiacom.com

     "... the true value of the Internet is its connectedness ..."
                                                  -- John W. Stewart III

home help back first fref pref prev next nref lref last post