> it should be possible to find a configuration that works reliably and allows devices to talk to each other without too much hassle. The number of multicast b

> it should be possible to find a configuration that works reliably and allows devices to talk to each other without too much hassle. The number of multicast bugs in Cisco/Juniper/whatever enterprise gear is astonishing. It’s basically a DoS waiting to happen. And if you have multiple network vendors in your shop as all real networks do… forget it. As I said, my long experience is that multicast just doesn’t work reliably in practice except maybe for small layer-2-only networks. The same places where broadcast storms aren’t noticeable. Unicast with source replication is fast, cheap, and reliable.