PLANET WGSW-48040HP User Manual

Page 305

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User’s Manual of WGSW-48040HP

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 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.

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