All things related to multicast

[Leonard Giuliano <>]

On Sat, 26 Feb 2011, Ray Soucy wrote:

-) The only way this works is if the relays are at the ISP's.  These are
-) the same ISP's who simply don't route global multicast, and to be
-) blunt, if it's done at the ISP level, a direct peering would be
-) preferable to something like AMT.
-) 

Keep in mind it only takes one ISP.  There actually are a number of large 
ISPs that have Internet mcast deployed and peer with one another.  The 
problem is there are ~10-20x more ISPs who don't.  But with AMT, it 
empowers those who have enabled mcast and tunnels over those who haven't.