nanog mailing list archives
Re: Exchanges that matter...
From: Vadim Antonov <avg () pluris com>
Date: Fri, 6 Dec 1996 12:32:15 -0800
salo () msc edu (Tim Salo) wrote:
FDDI is not a WAN technology. Losing 20% of bandwidth of a 10 ft piece of fiber is one thing. Losing 20% of bandwidth of a $3M/yr circuit is quite different.
I don't understand. Are you trying to say that price/performance analysis is appropriate for LAN technologies, but not for WAN technologies?
Quite opposite. Price of "transmission" in LANs is negligible as compared to the price of interface cards and switches. So a good price/performance of the overall system can be achieved by simplifying those switches or interfaces, particularly by using less efficient methods of transmission. The price of transmission facility in WANs easily exceed price of switching equipment by an order of magnitude or more. Therefore it is very silly to sacrifice transmission capacity for the sake of easier switching in WANs.
Now, I could understand if you said, "I analyzed ATM WAN services for one configuration once and concluded that other technologies provided better cost/performance in all possible configurations," or even "I don't think ATM products and standards are mature enough for my application."
I don't think it will work as anything but sync muxes with silly framing in the real life WANs. I published my reasons for thinking so.
However, you seem to be saying that wide-area technologies should be assessed based on total cost and overhead, rather than on cost/performance...
No, i simply left out a simple conjecture. --vadim - - - - - - - - - - - - - - - - -
Current thread:
- RE: Exchanges that matter..., (continued)
- RE: Exchanges that matter... Deepak Jain (Dec 05)
- Re: Exchanges that matter... Vadim Antonov (Dec 05)
- Building exchanges that matter .. Joe Rhett (Dec 07)
- RE: Exchanges that matter... Vadim Antonov (Dec 05)
- Re: Exchanges that matter... Wayne Bouchard (Dec 05)
- RE: Exchanges that matter... Danny Stroud (Dec 05)
- Re: Exchanges that matter... Vadim Antonov (Dec 05)
- Re: Exchanges that matter... Bill Sommerfeld (Dec 05)
- Re: Exchanges that matter... Vadim Antonov (Dec 05)
- Re: Exchanges that matter... Tim Salo (Dec 06)
- Re: Exchanges that matter... Vadim Antonov (Dec 06)
- Re: Exchanges that matter... Scott Huddle (Dec 06)
- Re: Exchanges that matter... Jim Dixon (Dec 06)
- Re: Exchanges that matter... Alex.Bligh (Dec 07)
- Re: Exchanges that matter... Dave O'Shea (Dec 06)
- RE: Exchanges that matter... Danny Stroud (Dec 06)
- Re: Exchanges that matter... Vadim Antonov (Dec 07)
- Re: Exchanges that matter... Joe Rhett (Dec 08)
- Re: Exchanges that matter... Nathan Stratton (Dec 08)
- Re: Exchanges that matter... Stephen Stuart (Dec 08)
- Re: Exchanges that matter... Nathan Stratton (Dec 08)
- Re: Exchanges that matter... Nathan Stratton (Dec 08)