Specifications

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BridgeConfiguration

BridgeAddress:Thisshowstheswitch’sMACaddress.

Priority(0‐61440):RSTPusesbridgeIDtodeterminetherootbridge,thebridge

withthehighestbridgeIDbecomestherootbridge.ThebridgeIDiscomposedof

bridgepriorityandbridgeMACaddress.Sothatthebridgewiththehighest

prioritybecomesthehighestbridgeID.IfallthebridgeIDhasthesamepriority,

thebridgewiththelowestMACaddresswillthenbecometherootbridge.

Note:Thebridgepriorityvaluemustbeinmultiplesof4096.Adevicewitha

lowernumberhasahigherbridgepriority.Ex:4096ishigherthan32768.

Note:TheWebGUIallowsuserselecttheprioritynumberdirectly.Thisisthe

convinentoftheGUIdesign.WhenyouconfigurethevaluethroughtheCLIor

SNMP,youmayneedtotypethevaluedirectly.Pleasefollowthenx4096ruls

fortheBridgePriority.

MaxAge(6‐40):Enteravaluefrom6to40secondshere.Thisvaluerepresents

thetimethatabridgewillwaitwithoutreceivingSpanningTreeProtocol

configurationmessagesbeforeattemptingtoreconfigure.

IfPMIisnottherootbridge,andifithasnotreceivedahellomessagefromthe

rootbridgeinanamountoftimeequaltoMaxAge,thenPMIwillreconfigure

itselfasarootbridge.Oncetwoormoredevicesonthenetworkarerecognized

asarootbridge,thedeviceswillrenegotiatetosetupanewspanningtree

topology.

HelloTime(1‐10):Enteravaluefrom1to10secondshere.Thisisaperiodic

timerthatdrivestheswitchtosendoutBPDU(BridgeProtocolDataUnit)packet

tocheckcurrentSTPstatus.

Therootbridgeofthespanningtreetopologyperiodicallysendsouta“hello”

messagetootherdevicesonthenetworktocheckifthetopologyis“healthy”.

The“hellotime”istheamountoftimetheroothaswaitedduringsendinghello

messages.

ForwardDelayTime(4‐30):Enteravaluebetween4and30seconds.Thisvalue

isthetimethataportwaitsbeforechangingfromSpanningTreeProtocol

learningandlisteningstatestoforwardingstate.

ThisistheamountoftimePMIwillwaitbeforecheckingtoseeifitshouldbe

changedtoadifferentstate.

Onceyouhavecompletedyourconfiguration,clickonApplytoapplyyour

settings.

Note:YoumustobservethefollowingruletoconfigureHelloTime,Forwarding

Delay,andMaxAgeparameters.

2×(ForwardDelayTime–1sec)≥MaxAgeTime≥2×(HelloTimevalue+1

sec)

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