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by _jjkk
2051 days ago
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There is no obvious benefit to the ISP to serve multicast packets (so some kind of regulation would need to be crafted to force them to do so) In a world where denial of service attacks are cheap and ubiquitous, my first thought is that enabling multicast would be difficult to do without reducing the cost of debilitating DOS attacks. |
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Say I'm an ISP with X million subscribers.
Given a peering with Y GBit of throughput to someone like say, Twitch or Facebook; with multicast, I now only end up with a single load of data for each livestream coming over the pipe.
However, this does require direct peerings. Multicast over the Internet is just not a thing. This could technically be built out with IPv6, but nobody's realistically going to arrange for globally-unique multicast space allocations and convince every AS in the world to start peering multicast over BGP for general public use.