Configuring System Information 181Configuring LLDP and LLDP-MEDThe Link Layer Discovery Protocol (LLDP) allows network managers to troubleshoot and enhance networkmanagement by discovering and maintaining network topologies over multi-vendor environments. LLDPdiscovers network neighbors by standardizing methods for network devices to advertise themselves to othersystem, and to store discovered information. Device discovery information includes:• Device Identification• Device Capabilities• Device ConfigurationThe advertising device transmits multiple advertisement message sets in a single LAN packet.The multiple advertisement sets are sent in the packet Type Length Value (TLV) field. LLDP devicesmust support chassis and port ID advertisement, as well as system name, system ID, system description,and system capability advertisements.This section includes the following topics:• Defining Global LLDP Properties• Defining LLDP Port Settings• Defining Media Endpoint Discovery Network Policy• Defining LLDP MED Port Settings• Viewing the LLDP Neighbors InformationConsole# show radius-serversPortIP address Auth Acct TimeOut Retransmit Deadtime SourceIPPriority Usage--------- ---- ---- ------- ---------- ------- ----- ------- -----33.1.1.1 1812 1813 6 4 10 0.0.0.0 0 All172.16.1.2 1645 1646 11 8 Global Global 2 AllGlobal values--------------TimeOut: 5Retransmit: 5Deadtime: 10Source IP: 0.0.0.0
