nanog mailing list archives

Re: How do you put a TV station on the Mbone?


From: Jay Ashworth <jra () baylink com>
Date: Wed, 4 May 2011 17:43:04 -0400 (EDT)

----- Original Message -----
From: "Jeff Wheeler" <jsw () inconcepts biz>

The potential savings is limited by the over-speed of the mcast stream
vs real-time, and the density of mcast listener groups. Given that
access network speeds continue to increase, yet ISPs are really not
increasing "bandwidth caps," it is reasonable to assume that an ISP
might like to allow its subscribers to receive a very fast mcast
stream for a short period of time, instead of all of those subscribers
receiving many, slow mcast streams.

You know what would make this work *well*?  If IAPs *didn't include mcast 
traffic in your cap*.  Since the reason for their caps is, in the final
analysis *to limit THEIR transit costs*, multicast would seem to be a 
really good means toward that end, unless my final analysis is contradicted
by something better justified and documented...

This would turn multicast into a Consumer-pull technology.

Cheers,
-- jra


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