On 07/09/2007, paul at clubi.ie <paul at clubi.ie> wrote:
> On Fri, 7 Sep 2007, Thomas Bridge wrote:
> > Be more to the point to use actual multicast. Which is what a lot of
> > cable ISPs are going to be doing.
> Yes, where they are distributing the content. That's the TVoIP (to
> STBs) case I was referring to.
> But even that distribution model is outdated. Multicast pretty much
> has failed (other than very specific, single-admin-domain
> applications). P2P is the new multicast..
Thats a fairly short sighted view - there are significant enhancements
being made to Multicast (eg IGMP v 3) that will are designed
explicitly with the cable TV market in mind. I understand there are
already a number of set top boxes running IP multicast in various
> To clarify: I mean that if you were to look at cable ISPs, who allow
> customers to see each other, that I bet there's a /lot/ of localised
> file-sharing going on, even if just through windows file-sharing.
> That's speculation on my part, I've never seen such a cable network.
> But all other shared networks I've seen (college, work), that's what
> happens - I suspect cable wouldn't be much different.
I think there are things that make a difference - the communities at
work at the college and work level that won't neccessarily apply to a
neighbourhood. You're much more likely to share files with
colleagues in a work place or fellow students than you are with that
nice widow living at number 53. In any case, that's private
filesharing - as you point out - it doesn't affect further upstream
because the traffic doesn't travel there.
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