This protocol enables advanced LLDP features in a Voice over IP (VoIP) network. Whereas LLDP enables network discovery between Network Connectivity devices, LLDP-MED enables network discovery between Network Connectivity devices and media Endpoints (ie. VoIP phones).
Example Configuration String (this is entered on the Network Connectivity devices / switch):
With this string configured, it specifies VLAN 30 as the voice vlan, assigns the 802.1p/Q Priority Code Point of 5 to that VLAN, and assigns the DSCP value of 46 also to that VLAN (each of which are the highest categories).