Re: sell shell accounts?
I believe that given my [secret] assumptions, (some of which are revealed below), it scales well beyond the financial abilities of most any NSP. I assumed that the wide-area ATM service supported only PVCs and PVPs. (I keep hearing promises of SVCs "next year" but I don't think anyone [domestically] has delivered them.) I believe this address your concern about maintaining functional routing, but I make no claims to being a routing expert, so I might not fully comprehend the issue. I also assumed that the going price for a DS-3 xwide-area ATM connection is, to more or less pull a number out of the air, $250,000/year. This has two implications: o Any one NSP isn't going to be able to afford all that many connections. A full mesh of 100 routers, (i.e., $25 millino/year in ATM services) would require 4,950 PVCs. That is a lot to configure, but... o Given that each link is rather expensive, it behooves the NSP to try to avoid needlessly moving a packet back and forth across a DS-3 local loop just because my ATM provider can't provide me with any more PVCs. (Which was my major point, by the way.) On the other hand, you are correct that this doesn't sale to thousands of routers. But, I didn't think that was the problem we were trying to solve here, (just yet). -tjs
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salo@msc.edu