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- Path: sparky!uunet!pipex!warwick!nott-cs!ucl-cs!news
- From: J.Crowcroft@cs.ucl.ac.uk (Jon Crowcroft)
- Newsgroups: comp.dcom.cell-relay
- Subject: Re: Bandwidth Control
- Message-ID: <3402@ucl-cs.uucp>
- Date: 24 Jan 93 15:18:28 GMT
- Sender: news@cs.ucl.ac.uk
- Lines: 27
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- kyma@shell.portal.com (Matt J Young) writes:
- >+---------------
- >| Experts analysis has shown that statistical multiplexing
- >| over the WAN is simply not possible.
- >+---------------
-
- Rob Warnock, MS-9U/510 rpw3@sgi.com replies:
- >Then they need some new experts. At DCA, we were doing "statistical
- >multiplexing over the WAN" with a cell-relay-like system in 1971, and
- >people have been doing it ever since. It is *easier* to do in a WAN
- >environment, since you are averaging more traffic sources.
-
- absolutely they need new experts - sounds like someone is quoting
- professional litigation rytpe "experts":-)
-
- papers from bellcore and cabruidge computer labs report on as much as
- 6-10 fold increase in network utilisation for video traffic if you use stat
- muxing rather than fixed peak bandwidth allocation
-
- i havnt seen any quality papers contradict this (based on garret's
- video stats from domestic entertainment video and cambridges real
- video conferecing stats wit hthe pandor system over CFRs (i.e. real
- ATM style nets)....
-
- jon
-