Dell PowerConnect 6248 User's Guide - Page 425
Configuring Link Layer Discovery Protocol (LLDP) for Media Endpoint Devices
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Table 7-52. LLDP Connections Commands CLI Command show lldp interface show lldp local-device show lldp remote-device clear lldp remote data Description Displays the current LLDP interface state. Displays the LLDP local data Displays the LLDP remote data Deletes all data from the remote data table. Configuring Link Layer Discovery Protocol (LLDP) for Media Endpoint Devices The IEEE 802.1AB standard, which describes the Link Layer Discovery Protocol (LLDP), formalizes the discovery and capability retrieval of elements in a data network in a LAN/MAN environment. The information exchanged is stored in MIBs, and the information is accessible by a network management system (NMS) like SNMP. This framework is extensible and allows advanced utilization is areas like VoIP networks. The Link Layer Discovery Protocol for Media Endpoint Devices (LLDP-MED) provides an extension to the LLDP standard for network configuration and policy, device location, Power over Ethernet management, and inventory management. LLDP-MED uses LLDP's organizationally-specific TLV extensions and defines new TLVs that make it easier for a VoIP deployment in a wired or wireless LAN/MAN environment. It also makes mandatory a few optional TLVs from LLDP and recommends not transmitting some TLVs. Since LLDP-MED uses the framework of LLDP, it is bound by the same requirements of the original specification. The frame format, restrictions and implications are all preserved. The TLVs only communicate information; these TLVs do not automatically translate into configuration. An external application may query the MED MIB and take management actions in configuring functionality. The LLDP-MED menu page contains links to the following features: • LLDP Configuration • LLDP-MED Interface Configuration • LLDP-MED Local Device Information • LLDP-MED Remote Device Information LLDP-MED Global Configuration Use the LLDP-MED Global Configuration page to change or view the LLDP-MED parameters that affect the entire system. Configuring Switching Information 425