nanog mailing list archives
Re: Vulnerbilities of Interconnection
From: Sean Donelan <sean () donelan com>
Date: Thu, 12 Sep 2002 23:16:18 -0400 (EDT)
On Thu, 12 Sep 2002, John M. Brown wrote:
I guess the question is. At what point does one build redundancy into the network. I suspect its a balancing act between reducancy, survival (network) and costs vs revenues.
In 1982 AT&T was still a monopoly, could spend whatever it took and the primary threat was missles from the Soviet Union. AT&T had ten Class 1 Regional Centers in the country. Regional Centers were the "top" of the telephone network routing hierarchy fully connected to other regional centers. http://www.rand.org/publications/RM/RM3097/RM3097.appb.html I don't know how AT&T came to the conclusion that 10 was the perfect compromise between cost, reliability and survivability. They had lots of smart people who knew networks working on the problem, so I'm assuming they had a decent justification to back up the choice.
Current thread:
- Re: Vulnerbilities of Interconnection, (continued)
- Re: Vulnerbilities of Interconnection Tim Thorne (Sep 06)
- RE: Vulnerbilities of Interconnection Al Rowland (Sep 06)
- RE: Vulnerbilities of Interconnection Jeff Shultz (Sep 06)
- RE: Vulnerbilities of Interconnection Brad Knowles (Sep 06)
- RE: Vulnerbilities of Interconnection Jeff Shultz (Sep 06)
- Re: Vulnerbilities of Interconnection Valdis . Kletnieks (Sep 06)
- Re: Vulnerbilities of Interconnection Stephen J. Wilcox (Sep 06)
- Re: Vulnerbilities of Interconnection John M. Brown (Sep 06)
- Re: Vulnerbilities of Interconnection Kurt Erik Lindqvist (Sep 11)
- Re: Vulnerbilities of Interconnection John M. Brown (Sep 12)
- Re: Vulnerbilities of Interconnection Sean Donelan (Sep 12)
- Re: Vulnerbilities of Interconnection Stephen J. Wilcox (Sep 13)
- Re: Vulnerbilities of Interconnection Iljitsch van Beijnum (Sep 13)
- Re: Vulnerbilities of Interconnection Stephen J. Wilcox (Sep 14)
- Re: Vulnerbilities of Interconnection alex (Sep 13)
- Re: Vulnerbilities of Interconnection Dave Israel (Sep 13)
- Re: Vulnerbilities of Interconnection Kurtis Lindqvist (Sep 16)
- Re: Vulnerbilities of Interconnection Iljitsch van Beijnum (Sep 16)
- Re: Vulnerbilities of Interconnection Kurt Erik Lindqvist (Sep 16)
- Re: Vulnerbilities of Interconnection JC Dill (Sep 16)
- Re: Vulnerbilities of Interconnection Marshall Eubanks (Sep 16)