471Appendix D802.1ab Link Layer Discovery ProtocolContents This section contains the following topics:• "Introduction" (page 471)• "Description" (page 471)Introduction 802.1ab Link Layer Discovery Protocol is available for the following IPPhones• IP Phone 2001• IP Phone 2002• IP Phone 2004• IP Phone 2007• IP Phone 1110• IP Phone 1120E• IP Phone 1140E• IP Phone 1150EDescription The IEEE 802.1ab Link Layer Discovery Protocol (LLDP) defines a standardmethod for Ethernet network devices, such as IP Phones, switches, androuters to exchange information about their capabilities with other devicesand to store this information in a Management Information Base (MIB).LLDP also enables the system administrator to view the entire networkinfrastructure.The Telecommunications Industry Association (TIA) developed the LinkLayer Discovery Protocol (LLDP)-Media Endpoint Discovery (LLDP-MED)extension of 802.1ab LLDP for VoIP networks, as defined by ANSI/TIA-1057.Nortel Communication Server 1000IP Phones FundamentalsNN43001-368 02.01 StandardRelease 5.0 7 December 2007Copyright © 2003–2007, Nortel Networks.
