D-Link Unified Access System
Software User Manual
12/10/09
Page 272
Managing LLDP
Document
34CSFP6XXUWS-SWUM100-D7
LLDP-MED
The Link Layer Discovery Protocol-Media Endpoint Discovery (LLDP-MED) is an enhancement to LLDP that features:
•
Auto-discovery of LAN policies (such as VLAN, Layer 2 Priority and DiffServ settings), enabling plug and play
networking.
•
Device location discovery for creation of location databases.
•
Extended and automated power management of Power over Ethernet endpoints.
•
Inventory management, enabling network administrators to track their network devices and determine their
characteristics (manufacturer, software and hardware versions, serial/asset number).
The LLDP-MED folder provides access to the following pages:
•
“LLDP-MED Global Configuration”
•
“LLDP-MED Interface Configuration”
•
•
“LLDP Local Device Information”
•
“LLDP-MED Remote Device Information”
LLDP-MED Global Configuration
Use this page to set global parameters for LLDP-MED operation. To display this page, click
LAN > L2 Features > LLDP >
LLDP-MED > Global Configuration
in the navigation tree.
Figure 187: LLDP Global Configuration
•
Click
Submit
to updated the switch. The changes take effect but will not be retained across a power cycle unless a save
is performed.
Table 168: LLDP Global Configuration Fields
Field
Description
Fast Start Repeat
Count
Specifies the number of LLDP PDUs that will be transmitted when the protocol is enabled. The
range is from (1 to 10). The default value s 3.
Device Class
Specifies local device's MED Classification. The following three represent the actual
endpoints:
•
Class I Generic [IP Communication Controller etc.]
•
Class II Media [Conference Bridge etc.]
•
Class III Communication [IP Telephone etc.])
The fourth device is Network Connectivity Device, which is typically a LAN switch/router, IEEE
802.1 bridge, IEEE 802.11 wireless access point, etc.