D-Link DWS-4026 [263/741] Lldp med

ManagingLLDP

D-Link UnifiedWiredandWirelessAccessSystem

November2011 Page263

D‐LinkUWSUserManual

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endpoin

ts.

•Inventorymanagement,enablingnetworkadministratorstotracktheirnetworkdevicesanddetermine

theircharacteristics(manufacturer,softwareandhardwareversions,serial/assetnumber).

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167:LLDPGlobalConfiguration

•ClickSubmittoupdatedtheswitch.Thechangestakeeffectbutwill notberetainedacr

ossapowercycle

unlessasaveisperformed.

Table148: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Me

dia[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.