LLDP

General introduction to the benefits and operation of LLDP

The Link Layer Discovery Protocol (LLDP) provides a simple and reliable way to exchange information between neighboring devices on the network and for determining the topology of networks. LLDP provides discovery functions to identify individual devices and entire network structures using the procedures defined in the IEEE 802.1AB standard. Since the protocol works on Layer 2 (security level) of the OSI layer model and it is, therefore, used for physically addressing devices, its functionality is not limited to logical networks such as IP networks. In principle, LLDP covers all physically accessible devices on the network.

In particular, the vendor-independent LLDP protocol offers many advantages in complex networks:

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