3.2.9 Role of IoT infastructure devices
Infrastructure devices are primarily responsible for moving data between the controller devices and other end devices, as shown in the figure.
Infrastructure devices provide a variety of services including:
- wireless and wired connectivity
- quality of service queuing (for example, voice data before video data)
- high availability
- secure transfer.
Infrastructure devices connect the individual end devices to the network, and can connect multiple individual networks to form an internetwork. The management of data as it flows through the network is a primary role of the infrastructure, or intermediary, devices. These devices use the destination end device address, in conjunction with information about the network interconnections, to determine the path that messages should take through the network.