Link Layer Discovery Protocol (LLDP) enables exchanging of connectivity and management information between the systems on the network for the purpose of topology discovery. The information can include system capabilities, management addresses, and other information relevant to network operations. The network diagnostics service uses LLDP to detect problems that might lead to limited or degraded network connectivity. For more information about LLDP and procedures to configure LLDP, see Chapter 5, Exchanging Network Connectivity Information With Link Layer Discovery Protocol.