Points of Failure (was Re: National infrastructure asset)

Joseph T. Klein jtk at titania.net
Tue Sep 25 23:43:17 UTC 2001


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 at 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 at titania.net
Adelphia Business Solutions                joseph.klein at adelphiacom.com

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



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