6 ms·
Unless you build your network for it, multicast is a huge pain in the ass to administer. None of the big cloud providers built for it at the scale that traders
by pclmulqdq 3y ago
Unless you build your network for it, multicast is a huge pain in the ass to administer. None of the big cloud providers built for it at the scale that traders use it, and I think they prefer things that way. When customers want it, they all just fake it by doing fan-out unicast.
- rcarmo 3y agoAll hyperscalers have an SDN that essentially spoofs local ARP/DHCP inside the hypervisor and does not support broadcast or multicast by design (there are some caveats here, since some telco protocols that require them can be made to work).