nanog mailing list archives
Re: Multicast Traffic on Backbones
From: Hank Nussbacher <hank () att net il>
Date: Mon, 11 Jun 2001 09:09:47 +0200
At 21:46 10/06/01 +0100, BrandonButterworth wrote:
> HOWEVER, most of the 24x7 media sites (CNN, etc.) are doing on-demand > video, rather than streaming a constant feed.
Just wait a year or two. There are now two companies that I know of (probably others) that do near-on-demand video via multicast:
http://www.bandwiz.com/ http://www.digitalfountain.com/By doing clever encoding techniques these companies are able to provide near on demand video streams via a *single* multicast stream. See:
http://www.digitalfountain.com/technology/DF_techOverview.pdf - simple overviewhttp://www.digitalfountain.com/technology/DFTechWhitePaper2.9.pdf - detailed geek overview
-Hank
1) rights 2) unicast doesn't scale to the sort of audiences of radio/tv broadcasts and if you try it becomes financially unviable too (even with people attempting to fake multicast, e.g. Akamai) One way to manage both is to use the VCR model > On the one > hand, content providers aren't offering 24x7 multicast feeds because there > isn't enough multicast access at the end-points. We offer it regardless but there's not many can use it > Apart from 24x7 broadcast there isn't an obvious killer app. And there's reasonable argument over making the intenet = tv brandon
Current thread:
- Re: Multicast Traffic on Backbones, (continued)
- Re: Multicast Traffic on Backbones Michael Whisenant (Jun 10)
- Re: Multicast Traffic on Backbones Tim Winders (Jun 10)
- Re: Multicast Traffic on Backbones Michael Whisenant (Jun 10)
- Re: Multicast Traffic on Backbones Brandon Ross (Jun 10)
- Re: Multicast Traffic on Backbones Sean Donelan (Jun 10)
- Re: Multicast Traffic on Backbones Tim Winders (Jun 10)
- Re: Multicast Traffic on Backbones Eric A. Hall (Jun 10)
- RE: Multicast Traffic on Backbones Michael Whisenant (Jun 10)
- Re: Multicast Traffic on Backbones BrandonButterworth (Jun 10)
- Re: Multicast Traffic on Backbones Eric A. Hall (Jun 10)
- Re: Multicast Traffic on Backbones Masataka Ohta (Jun 10)
- Re: Multicast Traffic on Backbones Hank Nussbacher (Jun 10)
- Re: Multicast Traffic on Backbones Sean Donelan (Jun 11)
- Re: Multicast Traffic on Backbones Robert Beverly (Jun 11)
- Re: Multicast Traffic on Backbones Thomas R. Charron (Jun 14)
- Re: Multicast Traffic on Backbones Robert E. Seastrom (Jun 14)
- Re: Multicast Traffic on Backbones John Fraizer (Jun 14)
- RE: Multicast Traffic on Backbones Thomas R. Charron (Jun 14)