Wahoo smart trainers support network connectivity (instead of just the traditional Bluetooth or ANT+). Since I don’t have one I’d never bothered looking into how it works, but this morning while troubleshooting something with TrainerRoad running in the background I happened to see an mDNS query for _wahoo-fitness-tnp._tcp.local and realized this is how the smart trainers get discovered on the network.
Neat!
Maybe one day I’ll have a smart trainer that can use the network and I can dig further into how this all works.