On 30/04/2011, at 5:44 AM, "John Levine" <jo...@iecc.com> wrote:
>> Delivering multicast to end users is fundamentally not hard. The >> biggest issue seems to be with residential CPE (pretty much the same >> problem as IPv6, really). > > Well, more than that, since I don't really want my DSL pipe saturated > with TV that I'm not watching, you need some way for the CPE to tell > the ISP "send me stream N" > > I suppose with some sort of spanning three thing it'd even be posssible > to do that at multuple levels, so the streams are only fed to people > who have clients for it. > > R's, > John Or your set top box... multicast joins from STB to DSLAM aren't so hard. AT&T U-Verse has been doing it for more than five years now. jy
