D-Link DWS-4026 Руководство пользователя. Версия 2.0 онлайн [243/741] 172936

ConfiguringSpanningTreeProtocol

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

November2011 Page243

D‐LinkUWSUserManual

•Ifyoumakeanyconfigurationchanges,clickSubmittoapplythenewsettingstotheswitch.

•ClickForcetoforcetheporttosendout802.1wor802.1DBPDUs.

•ClickRefreshtoupdatethescreenwithmostrecentdata.

Table133:SpanningTreeMSTConfiguration/Status

Field Description

MST Usethedrop‐downmenutocreateandconfigureanewMSTorselectanexistingMSTto

displayorconfigure.

MSTID ThisisonlyvisiblewhenCreateisselectedfromtheMSTfielddrop‐downmenu.TheIDof

theMSTbeingcreated.Validvaluesforthisarebetween1and409

Priority SpecifiesthebridgepriorityvaluefortheMST.WhenswitchesorbridgesarerunningSTP,

eachisassignedapriority.AfterexchangingBPDUs,theswitchwiththelowestpriority

valuebecomestherootbridge.Thebridgepriorityisamultipleof4096.Ifyouspecifya

prioritythatisnotamulti

pleof4096,thepriorityisautomaticallysettothenextlowest

prioritythatisamultipleof4096.Forexampleifthepriorityisattemptedtobesettoany

valuebetween0and4095,itwillbesetto0.Thedefaultpriorityis32768.Thev

alidrange

is0‐61440.

VLANID ThisgivesalistboxofallVLANsontheswitch.TheVLANsassociatedwiththeMSTinstance

whichisselectedar ehighlightedonthelist.Thesecanbeselectedorunselectedfor

reconfiguringtheassociationofVLANstoMSTinstances.

BridgeIdentifier Thebridgeidentifierfo

rtheselectedMSTinstance.Itismadeupusingthebridgepriority

andthebaseMACaddressofthebridge.

TimeSince

TopologyChange

Displaysthetotalamountoftimesincethelasttopographicchange.Thetimeisdisplayed

inhour/minute/secondformat,forexample,5hours10minutesand4se

conds.

Topology

ChangesCounts

DisplaysthetotalnumberofMSTstatechangesthathaveoccurred.

TopologyChange IndicateswhetheratopologychangeisinprogressonanyportassignedtotheCST.The

possiblevaluesareTrueorFalse.

DesignatedRoot Displaysthebridgeidentifieroftherootbridge,whichis madeupfromthebrid

gepriority

andthebaseMACaddressofthebridge.

RootPathCost DisplaysthepathcosttotheDesignatedRootforthisMSTinstance.

RootPort IndicatestheporttoaccesstheDesignatedRootforthis MSTinstance.