
Agree, this is a great discussion, akin to a recent Cook Report accounting of best 
effort considerations. Several startups (now going into year two) have addressed 
the cable-HF/C constraints you've mentioned. You may be interested in perusing 
these two:

http://www.narad.com

Another, Rainmaker Technologies...

http://www.rainmakertechnologies.com

.... appears to have fallen on hard times while seeking later round funding. Not 
sure of their disposition at this time, but doing googles on their name reveal 
some good articles on their approach to using wavelets to improve bit gain over 
black coax/fiber systems to homes and businesses.

Metcalfe has financial backing hooks and input into Narad, and Mark E. Laubach of 
COM21 fame (ATM over HF/C) heads up (headed up?) Rainmaker's technical pursuits.

[[As an aside, I'm finding increased interest in corporate parks (especially those 
that are boondocks-bound) where MSO fiber-based offerings are being seriously 
considered for WAN access, both of the type discussed above and enterprise-
tailored rings coming off local head-ends.]]

Frank


On Sun, 30 May 2004 08:47 , 'Christopher J. Wolff' <chris@bblabs.com> sent:

>
>Folks,
>
>This is a great discussion.  I'm interested in understanding these types of
>limitations in the context of HFC cable networks.  In my opinion, HDTV
>channel bandwidth (30mhz?) , increased demand for voip, and growing demand
>for IP connectivity is going to stress the cable network model as well,
>forcing cable operators to convert everything to IP before going out across
>the wire.  Any input is appreciated.
>
>Regards,
>Christopher
>





