nanog mailing list archives

BGP (in)security makes the AP wire


From: Mmaad Dooog <mmaaddooog () yahoo com>
Date: Tue, 11 May 2010 06:34:10 -0700 (PDT)


Is anyone going to jump on the irony of the last two paragraphs?  Having to use the excessively rigid, slow, static, 
boring expensive PSTN to fix the cool, fast, flexible cheap, cool, fun Internet?  That'll work just fine, of course. 
Until, that is, one of the telcos in the path saves a few bucks and routes a call leg over the Internet.  

What will us network operators do when there is NO out of band management path to anything?  What will happen when you 
can't even place a phone call?

The PSTN ran about 80 years or so on in-band signaling until a very rational cost/benefit decision was made to remove 
signaling from the traffic path.   Physically seperating signaling (SS7) and routing (LERG, etc) paths from the traffic 
(for all but the access link) was a large, expensive, difficult effort, but worth it.  The PSTN is full of 
quasi-governmental central authorities for everything, and is all the better for it.

At some point, the best-effort, cooperative, come-as-you-are paradigm that let the Internet grow fast and far will 
probably be overtaken by the societal need for reliable, deterministic, assured performance.   This thread has 
discussed only evolutionary, incremental improvements.  Who are the revolutionaries among us?  

MD








Steven Bellovin smb at cs.columbia.edu 
Sun May  9 13:32:57 UTC 2010 
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________________________________
 
http://www.nytimes.com/aponline/2010/05/08/business/AP-US-TEC-Fragile-Internet.html

It's a pretty reasonable article, too, though I don't know that I agree about the "simplicity of the routing system"....

                --Steve Bellovin, http://www.cs.columbia.edu/~smb


      


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