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- Newsgroups: comp.dcom.cell-relay
- Path: sparky!uunet!ftpbox!mothost!merlin.dev.cdx.mot.com!pjd.dev.cdx.mot.com!peterd
- From: peterd@pjd.dev.cdx.mot.com (Peter Desnoyers)
- Subject: Re: Computers dont like ATM?
- Message-ID: <peterd.722189318@pjd.dev.cdx.mot.com>
- Sender: news@merlin.dev.cdx.mot.com (USENET News System)
- Nntp-Posting-Host: pjd.dev.cdx.mot.com
- Organization: Motorola Codex, Canton, Massachusetts
- References: <1992Nov19.104113.1@tnclus.tele.nokia.fi>
- Date: Thu, 19 Nov 1992 16:08:38 GMT
- Lines: 41
-
- rowland@tnclus.tele.nokia.fi writes:
-
- >[Gregory Finn wrote :]
-
- >> ATM is politically very popular. Arguments that ATM brings
- >>about end-to-end compatibility do not impress me. Most LAN traffic
- >>stays within the LAN. Forcing LANs to comply with WAN data-link
- >>standards is putting the cart before the horse.
-
- > "Most LAN traffic stays within the LAN" - The meaning of "most" is
- > shifting. Why couldn't the inter/intra LAN traffic ratio grow to
- > nearer 50/50 in the future?
-
- Here's a random list of reasons, in no particular order:
-
- Because most communications systems have a local bias. (e.g. the phone
- system, the highway system) Because those that don't have this bias
- seem to be broadcast (TV, postal - i.e. junk - mail) systems, and data
- networks aren't.
-
- Because work habits tend to favor clusters of people working in physical
- proximity, so a work group which shares data is likely to consist of
- one or two closely located groups, with little traffic outside. (this is
- drawing on my own experience in engineering - in other fields this may
- not hold, e.g. if you and your colleagues spend all your time accessing
- data from a third, distant party. Radiology comes to mind as an example.)
-
- Because of the existence of NFS - there are good reasons why you want
- your main server (or at least the person who fixes it) to be near by.
- Any other "remote peripheral" system shares the same property.
-
- Because bandwidth will always be cheaper on a LAN. (or at least on the
- right one)
-
- Because LANs allow people to escape the purview of corporate planners.
- Look at the success of Appletalk and of the Apollo ring when they both
- came out. Do you think they would have succeeded if every installation
- had gone through an IS approval and installation process?
-
- Peter Desnoyers
- --
-