What type of transmission is defined as one-to-all and is generally used for device discovery?

In the context of networking and device discovery, the transmission type that is characterized as one-to-all is known as broadcast. This method allows a message or data packet to be sent to all devices on a network segment simultaneously. When a broadcast transmission is initiated, every device that is connected to the same local network receives the message, allowing for efficient communication, especially during processes like device discovery.

In many networking scenarios, such as setting up a Dante audio system, devices may need to identify and communicate with each other as part of the initialization process. Broadcasting ensures that all devices receive the discovery messages without the need for individual addressing, thereby simplifying the setup.

Other transmission types like multicast and unicast serve different purposes: multicast aims to send data to a specific group of devices rather than all of them, while unicast is a one-to-one communication method directed at a single receiving device. Point-to-point refers specifically to direct connections between two devices, which does not apply in the case of sending to all devices on a network. Therefore, broadcast is the most suitable choice for a one-to-all transmission used during device discovery.