LLDP-MED Endpoint Device Definition: LLDP-MED Endpoint Devices, as defined in TIA-1057, are
located at the IEEE 802 LAN network edge, and participate in IP communication service using the
LLDP-MED framework.
Within the LLDP-MED Endpoint Device category, the LLDP-MED scheme is broken into further
Endpoint Device Classes, as defined in the following.
Each LLDP-MED Endpoint Device Class is defined to build on the capabilities defined for the previous
Endpoint Device Class. For-example will any LLDP-MED Endpoint Device claiming compliance as a
Media Endpoint (Class II) also support all aspects of TIA-1057 applicable to Generic Endpoints (Class I),
and any LLDP-MED Endpoint Device claiming compliance as a Communication Device (Class III) will
also support all aspects of TIA-1057 applicable to both Media Endpoints (Class II) and Generic
Endpoints (Class I).
LLDP-MED Generic Endpoint (Class I): The LLDP-MED Generic Endpoint (Class I) definition is
applicable to all endpoint products that require the base LLDP discovery services defined in TIA-1057,
however do not support IP media or act as an end-user communication appliance. Such devices may
include (but are not limited to) IP Communication Controllers, other communication related servers, or
any device requiring basic services as defined in TIA-1057.
Discovery services defined in this class include LAN configuration, device location, network policy,
power management, and inventory management.
LLDP-MED Media Endpoint (Class II): The LLDP-MED Media Endpoint (Class II) definition is
applicable to all endpoint products that have IP media capabilities however may or may not be
associated with a particular end user. Capabilities include all of the capabilities defined for the previous
Generic Endpoint Class (Class I), and are extended to include aspects related to media streaming.
Example product categories expected to adhere to this class include (but are not limited to) Voice /
Media Gateways, Conference Bridges, Media Servers, and similar.
Discovery services defined in this class include media-type-specific network layer policy discovery.
LLDP-MED Communication Endpoint (Class III): The LLDP-MED Communication Endpoint (Class III)
definition is applicable to all endpoint products that act as end user communication appliances
supporting IP media. Capabilities include all of the capabilities defined for the previous Generic
Endpoint (Class I) and Media Endpoint (Class II) classes, and are extended to include aspects related to
end user devices. Example product categories expected to adhere to this class include (but are not
limited to) end user communication appliances, such as IP Phones, PC-based softphones, or other
communication appliances that directly support the end user.
Discovery services defined in this class include provision of location identifier (including ECS / E911
information), embedded L2 switch support, inventory management.
LLDP-MED Capabilities: LLDP-MED Capabilities describes the neighborhood unit's LLDP-MED
capabilities. The possible capabilities are:
1. LLDP-MED capabilities
2. Network Policy
3. Location Identification
4. Extended Power via MDI - PSE
5. Extended Power via MDI - PD
6. Inventory
7. Reserved
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