How do you put a TV station on the Mbone? (was: Royal Wedding...)

Jeffrey S. Young young at
Sat Apr 30 09:13:09 UTC 2011

On 30/04/2011, at 5:44 AM, "John Levine" <johnl at> 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.


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