NPort Networks N1-9802W, User Manual, Page: 269 / 296

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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.