Link Layer Discovery Protocol - Media Endpoint Discovery (LLDP-MED)

LLDP-capable devices transmit information in type, length, and value (TLV) messages to neighbor devices. Device information can include information such as chassis and port identification and system name and system capabilities. The TLVs leverage this information from parameters that have already been configured in the Junos operating system (Junos OS). LLDP-MED goes one step further than LLDP, exchanging IP-telephony messages between the switch and the IP telephone.