Link Layer Discovery Protocol

"LLDP" redirects here. For the left lateral decubitus position, see Lying (position).
Internet protocol suite
Application layer
Transport layer
Internet layer
Link layer

The Link Layer Discovery Protocol (LLDP) is a vendor-neutral link layer protocol used by network devices for advertising their identity, capabilities, and neighbors on a local area network based on IEEE 802 technology, principally wired Ethernet.[1] The protocol is formally referred to by the IEEE as Station and Media Access Control Connectivity Discovery specified in IEEE 802.1AB with additional support in IEEE 802.3 section 6 clause 79.[2]

LLDP performs functions similar to several proprietary protocols, such as Cisco Discovery Protocol, Foundry Discovery Protocol, Nortel Discovery Protocol and Link Layer Topology Discovery.

  1. ^ "802.1AB-REV - Station and Media Access Control Connectivity Discovery". IEEE. Retrieved 2009-10-17.
  2. ^ "IEEE 802.1AB-2016 - IEEE Standard for Local and metropolitan area networks - Station and Media Access Control Connectivity Discovery".