cross-posted from: https://piefed.zip/c/enshittification@lemmy.world/p/1887579/man-discovers-his-parents-coffee-machine-used-1tb-of-data-in-10-days
cross-posted from: https://piefed.zip/c/enshittification@lemmy.world/p/1887579/man-discovers-his-parents-coffee-machine-used-1tb-of-data-in-10-days
Multicast means the AP has to deliver a copy of the packet to every other client on the network, so it’s multiplicative.
The router doesn’t automatically know which clients are listening to a given multicast address and which aren’t, so it has to send a packet to all of them.