On Tue Sep 03, 2019 at 09:48:58AM +0100, James Bensley wrote: > > On 2 Sep 2019, at 17:37, Nicholas Humfrey <[email protected]> > > wrote: > >> With accepted answer: "You cannot multicast on the public Internet"
You could but nobody wants you to. Enough money is being made by CDNs doing discrete replication and with no premium chargable by ISPs to make it worth their effort (glossing over the protocols not being that well suited to them doing it) to multicast the ISPs just leave it to the CDNs and make their more money where excess unicast occurs. There is no incentive for them to change that. Inside cable TV companies (including BT etc as an IP cable co) the incentives are different and it does get used. > >> Which I guess is generally true. But is there still a multicast VLAN > >> available at LoNAP and LINX? Is anyone using it for anything? I did try pushing it > It's interesting that the request came from someone from within the > Beeb. On their own website they allude that unless you're a customer > of one of the listed ISPs, you probably aren't getting a service > delivered via multicast (although, I'm not sure how up to date this > page is): http://www.bbc.co.uk/multicast/tv/home.shtml That page is from when I tried in 2004 (to about 2008) brandon
