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- Path: sparky!uunet!caen!zaphod.mps.ohio-state.edu!think.com!barmar
- From: barmar@think.com (Barry Margolin)
- Newsgroups: comp.protocols.misc
- Subject: Re: What's the point of ATM?
- Date: 11 Sep 1992 20:13:36 GMT
- Organization: Thinking Machines Corporation, Cambridge MA, USA
- Lines: 17
- Distribution: na
- Message-ID: <18qulgINN5re@early-bird.think.com>
- References: <id.I94T.WPC@ferranti.com>
- NNTP-Posting-Host: telecaster.think.com
-
- In article <id.I94T.WPC@ferranti.com> peter@ferranti.com (peter da silva) writes:
- >Well, I've been reading about how ATM is supposed to revolutionalise LANs,
- >but I'm damned if I can figure out why. It looks like a good protocol for
- >combining voice and data in a WAN, but what can it do for a LAN that a
- >smarter bridge/router couldn't? Or is it just being used as a very fast
- >brouter?
-
- I believe that's all it is. ATM cells are very simple to parse; they're
- small, they have a fixed size, and address fields and options are in known
- locations. This permits the switching logic to be very simple, rather than
- requiring a general purpose CPU. I think ATM cell switches are being
- implemented with custom ASICs instead.
- --
- Barry Margolin
- System Manager, Thinking Machines Corp.
-
- barmar@think.com {uunet,harvard}!think!barmar
-