Multicast Basics
Axia Generic Help Documents
… but if I'm trying to talk to 100 people at once, I'd need 100 connections to my phone. That could be a problem. Instead, I might choose to use a radio to address them to reduce the load on my phone. Furthermore, multicast only sends to those devices that wish to receive it, so in order to hear me talking on the radio, someone would have to "tune in" to get my signal. Multicast works a little different than the radio example above. Since the devices themselves are not communicating one-on-one with Devices will first send a request, or "query", to receive a specific multicast stream. While this method is fantastic for reducing the load on a device, it can add considerable load to the switch, as the switch is managing which devices subscribe and unsubscribe to/from the multicast stream. This is a "Callout" that …