[55696] in North American Network Operators' Group
Re: Cascading Failures Could Crash the Global Internet
daemon@ATHENA.MIT.EDU (Douglas Denault)
Sat Feb 8 10:33:41 2003
From: Douglas Denault <doug@safeport.com>
Date: Sat, 8 Feb 2003 10:31:51 -0500 (EST)
To: nanog@merit.edu
In-Reply-To: <10053db10026e0.10026e010053db@gmu.edu>
Errors-To: owner-nanog-outgoing@merit.edu
The model proposed makes several assumptions. My question is about:
Many real-world networks are heterogeneous and as such are expected to
undergo large-scale cascades if some vital nodes are attacked.
on page 3. I do not get the basis for this assumption. So any help for a 60's
educated math major would be appreciated.
On Thu, 6 Feb 2003 sgorman1@gmu.edu wrote:
>
> The paper is avaibable on the Los Alamos site free of charge:
>
> http://xxx.lanl.gov/PS_cache/cond-mat/pdf/0301/0301086.pdf
>
>
>
> ----- Original Message -----
> From: Sean Donelan <sean@donelan.com>
> Date: Thursday, February 6, 2003 12:43 pm
> Subject: Cascading Failures Could Crash the Global Internet
>
> >
> >
> > Sigh, there are differences between tightly coupled networks, such as
> > the electric power grid and loosely couple networks like the
> Internet.
> > But there are also some similarities, such as electric grids use DC
> > interconnections to limit how far AC disturbances propagate; the
> > Internet uses AS interconnections to limit IGP disturbances from
> > propagating.
> >
> > http://sci.newsfactor.com/perl/story/20686.html
> >
> > The actual article requires payment to read
> > http://ojps.aip.org/getabs/servlet/GetabsServlet?
> prog=normal&id=PLEEE8000066000006065102000001&idtype=cvips&gifs=Yes
> >
> >
> >
>
_____
Douglas Denault
doug@safeport.com
Voice: 301-469-8766
Fax: 301-469-0601
