Planet GS-5220 Series User Manual page 474

• Device Type LLDP-MED Devices are comprised of two primary Device Types:
Network Connectivity Devices and Endpoint Devices.
LLDP-MED Network Connectivity Device Definition
LLDP-MED Network Connectivity Devices, as defined in TIA-1057,
provide access to the IEEE 802 based LAN infrastructure for LLDP-MED
Endpoint Devices. An LLDP-MED Network Connectivity Device is a LAN
access device based on any of the following technologies:
1. LAN Switch/Router
2. IEEE 802.1 Bridge
3. IEEE 802.3 Repeater (included for historical reasons)
4. IEEE 802.11 Wireless Access Point
5. Any device that supports the IEEE 802.1AB and MED extensions
defined by TIA-1057 and can relay IEEE 802 frames via any method.
LLDP-MED Endpoint Device Definition
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 upon the
capabilities defined for the previous Endpoint Device Class.
Fore-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
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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
User's Manual of GS-5220 LCD Series