LevelOne GEP-5070, Руководство пользователя

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HAPTER
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| Monitoring the Switch
Displaying LLDP Information
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Device Type - LLDP-MED devices are comprised of two primary types:
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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:
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LAN Switch/Router
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IEEE 802.1 Bridge
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IEEE 802.3 Repeater (included for historical reasons)
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IEEE 802.11 Wireless Access Point
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Any device that supports the IEEE 802.1AB and MED extensions
defined by TIA-1057 and can relay IEEE 802 frames via any
method.
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LLDP-MED Endpoint Device – Within this 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).
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LLDP-MED Generic Endpoint (Class I) – 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.
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LLDP-MED Media Endpoint (Class II) – 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) – 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)