further info about dummynet from Denis -- Professor Lawrence A. Rowe Internet: Rowe@BMRC.Berkeley.EDU Computer Science Division - EECS Phone: 510-642-5117 University of California, Berkeley Fax: 510-642-5615 Berkeley, CA 94720-1776 URL: http://bmrc.berkeley.edu/~larry
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- To: "Lawrence A. Rowe" <Rowe@BMRC.Berkeley.EDU>
- Subject: Re: Dummynet
- From: Denis DeLaRoca <delaroca@ucla.edu>
- Date: Fri, 1 Dec 2000 10:22:28 -0800 (PST)
- In-Reply-To: <3A27E156.4EE2009D@BMRC.Berkeley.EDU>
On Fri, 1 Dec 2000, Lawrence A. Rowe wrote: > wow - i've never heard of dummynet. that sounds like an excellent > idea. i'll investigate. "Dummynet was initially implemented as a testing tool for TCP congestion control by Luigi Rizzo <luigi@iet.unipi.it>, as described on ACM Computer Communication Review, Jan.97 issue. Later it has been then modified to work at the ip and bridging level, and integrated with the IPFW packet filter." And has been integrated in FreeBSD v4.x... don't know about Linux. My only worry is that while you can program delay and loss rates for the Real Player experiment we need to vary delay continuosly... a colleague here working on a Virtual Worlds Server did "cook" something like dummynet using the tap interface in Linux. I'll talk to him and see if he's got anything that he can release. he too wanted to see the efforts of injecting delay on his scheme to stream data to his Virtual Worlds nodes. -- Denis
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