On Tue, Apr 20, 2010, Perry Lorier wrote:

> One of my colleagues here (Shane Alcock) did some research into "Service 
> Provider NAT" based off passive traces from a New Zealand Residential 
> ISP[1].  By passively looking at connections he investigated how you 
> could dimension a NAT box for an ISP.  His research is available here 
> http://www.wand.net.nz/~salcock/spnat/tech_report.pdf .  If walls of 
> text scare you (why are you reading this mailing list then?) skip 
> through and look at the graphs (page 3 onwards)

Interesting. Only a few days, and not really any analysis for worst
case scenarios and how to possibly gracefully recover from those.
(eg, I've done some NAT hacks to detect idle HTTP pconns and toss
those before tossing the others.)




Adrian


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