Adding and Managing OUI Data in Network Director
Network Director uses Link Layer Discovery Protocol (LLDP) to detect the type of network device (such as desktop computer, VoIP phone, or network servers) in a campus network. However, network printers are an exception as most printers do not use LLDP. As a result, Network Director might not be able to identify the device as a printer. This is where the organizationally unique identifier (OUI) of printers come into play. OUI is formed using the first three octets of the device MAC address. OUI is unique to a vendor or manufacturer and can be identified globally.
You can build a database of OUIs that Network Director can use to identify the device type. During the topology discovery, if the LLDP-based discovery does not identify the device type, Network Director looks up in the OUI database to see whether there is a match. If Network Director finds a matching entry, the device is notated as a printer in the network topology. If there is no match, the device is marked as an unknown device.
To add and manage OUI data: