Another aspect of UDP/OSC, which I've not seen in the other discriptions, is the easy ability for broadcasting messages.
Instead of sending the OSC command to a specific IP address, one can often use the networks broadcast address.
As for the Broadcast term, it describes the process of broadcasting packets to an entire subnet. (e.g: 192.168.1.001 to 192.168.1.254). As you see, the Address 192.168.1.255 here is spared out. This is the broadcast address of the used subnet. If you put this IP as the OSC recievers address, the messages will be fired to all IP Adresses e.g. devices in the network. This makes it easy to trigger multiple devices, with only one OSC message and therefore in Izzy, only one OSC send actor.