Streaming Video Bandwidth Requirements, WAS: FW: Re: Is there a line of defense against Distributed Reflective attacks?

Sat Jan 25 03:16:15 UTC 2003

Perhaps, continuing the off-topic thread...

The best compression techniques that do not use block-based methods (as
in MPEG-2/4) can achieve much better compression capabilities than
listed below and in the other follow-on thread.  For an excellent
overview of what this may do for video on demand over the Internet,
check out the September 22nd issue of The Economist.  There are
basically three types of approaches: wavelet, fractal, and heuristic (or
object?).  They are also either software-only or hardware-assisted.
I've seen one of them that claims 1.1 Mbps typically for standard
definition (480i), and about 3 Mbps for HDTV (1080i).  I'm no codec
expert, but I was amazed at the clarity, even with packet loss.  I think
we'll find video on demand and other streaming entertainment services
over our xDSL connections and Cable Modems much sooner than most people
expect.  I hope network operators are prepared for it.

You can get a typed copy of The Economist Article at:
http://fox.rollins.edu/~tlairson/ecom/video.html

Regards,

Jeff Turner

jlt at interstream.org

> -----Original Message-----
> From: owner-nanog at merit.edu [mailto:owner-nanog at merit.edu] On Behalf 
> Of Al Rowland
> Sent: Wednesday, January 22, 2003 9:28 AM
> To: nanog at trapdoor.merit.edu
> Subject: RE: FW: Re: Is there a line of defense against Distributed
Reflective attacks?

> Not to mention that fact that 99.99% of current consumer connections 
> are not up to the task. Standard full-screen video digital stream is
> ~6Mbps, HDTV requires 19.4Mbps. Don't know many consumers with T3s. ;)

> Al Rowland