Link Layer Discovery Protocol

The Link Layer Discovery Protocol or LLDP is a vendor-neutral Layer 2 protocol that allows a network device to advertise its identity and capabilities on the local network. The protocol was formally ratified as IEEE standard 802.1AB-2005 in May 2005.

See also

• type-length-value
• Link Layer Discovery Protocol - Media Endpoint Discovery
• OpenLLDP
• Cisco Discovery Protocol
• Extreme Discovery Protocol
• Nortel Discovery Protocol

Link layer discovery allows a network management system to model the topology of the network by interrogating the MIB databases in the devices.

External links

• IEEE 802.1AB (LLDP) Specification
• CommsDesign: Tutorial on LLDP
• The Wireshark Wiki LLDP Page
• The Open Source LLDP Project - OpenLLDP
• The LLDP Fuzzer

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