[67947] in North American Network Operators' Group
Re: How relable does the Internet need to be? (Was: Re: Converged Network
daemon@ATHENA.MIT.EDU (Michael.Dillon@radianz.com)
Thu Feb 26 06:50:17 2004
To: nanog@merit.edu
From: Michael.Dillon@radianz.com
Date: Thu, 26 Feb 2004 11:48:17 +0000
Errors-To: owner-nanog-outgoing@merit.edu
>> I think the Internet is doing pretty well save some IOS code problems
>> from time to time, and the typical root server hicups.
>I'm interested to know what you mean by "typical root server hicups".
>I'm trying to think of an incident which left the Internet generally
>unable to receive answers to queries on the root zone, but I can't
>think of one.
There have been several incidents in which some root servers
have hiccuped, sometimes being down for several days. But since
the service they provide has N+12 resiliency, the service itself
has never been unavailable.
Similarly, the Internet has always had N+1 or better vendor resiliency
so IOS can have problems while the non-IOS vendor (or vendors) keep on
running. In fact, I would argue that N+1 vendor resiliency is a good
thing for you to implement in your network and N+2 vendor resiliency is
a good thing for the Internet as a whole. Let's hope that vendor P manages
to get some critical mass in the market along with J and C.
--Michael Dillon
