PLANET WGSD-8020 - Manual (Page 220)

User’s Manual of WGSD-8020
220
4.14 LLDP
4.14.1 Link Layer Discovery Protocol
LLDP is an IEEE 802.1ab standard protocol. The Link Layer Discovery Protocol(LLDP), is used for network discovery, and
works by having the units in the network exchanging information with their neighbor devices using LLDP frames on the local
broadcaset domain. LLDP is a Layer 2 protocol that uses periodic broadcasts to advertise information about the sending device.
Advertised information is represented in Type Length Value (TLV) format according to the IEEE 802.1ab standard, and can
include details such as device identification, capabilities and configuration settings. LLDP also defines how to store and maintain
information gathered about the neighboring network nodes it discovers.
Link Layer Discovery Protocol - Media Endpoint Discovery (LLDP-MED) is an extension of LLDP intended for managing
endpoint devices such as Voice over IP phones and network switches. The LLDP-MED TLVs advertise information such as
network policy, power, inventory, and device location details. LLDP and LLDP-MED information can be used by SNMP
applications to simplify troubleshooting, enhance network management, and maintain an accurate network topology.