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Bridge Priority:
AllowsyoutosettheBridgePriority.PriorityvaluesareDescending(i.e.100hasahigherprioritythan
1000).TheBridgePriorityplustheMSTIInstanceconcatenatedwiththe6-byteMACAddressoftheSwitchformsthe
BridgeIdentifier.InMSTPthisisthepriorityoftheCIST.Wedonotrecommendchangingthisvaluewithoutconsulting
aknowledgeableNetworkAdministrator.
Forward Delay:
AllowsyoutosetthedelayusedwhenTransmittingRootandDesignatedPortsBPDU.Thevalid
rangeis4-30secondswithadefaultof15seconds.Wedonotrecommendchangingthisvaluewithoutconsultinga
knowledgeableNetworkAdministrator.
Max Age:
AllowsyoutosettheMaximumAgeoftheBPDUTransmittedbytheRootBridge.ThevalidRangeis6-40
secondswiththedefaultof20seconds(MaxAgemustbe<=(FwdDelay-1)*2).Wedonotrecommendchangingthisvalue
withoutconsultingaknowledgeableNetworkAdministrator.
Maximum Hop Count:
AllowsyoutosetthenumberofRemainingHopsforSTPBPDUsgeneratedattheboundary
ofanMSTPregion.Thevalidrangeis6-40hops.Wedonotrecommendchangingthisvaluewithoutconsultinga
knowledgeableNetworkAdministrator.
Transmit Hold Count:
AllowsyoutosetthenumberofBPDUsaBridgePortcansendpersecond.Whenpersecond
limitisexceededthetransmissionofthenextBPDUwillbedelayed.ThevalidRangeis1-10BPDUspersecond.Wedo
notrecommendchangingthisvaluewithoutconsultingaknowledgeableNetworkAdministrator.
Advanced Settings
Edge Port BPDU Filtering:
AllowsyoutosetwhetheraPortexplicitlyconfiguredasanEdgePortwillTransmitand
receiveBPDUs.
Edge Port BPDU Guard:
AllowsyoutosetwhetheraPortexplicitlyconfiguredasanEdgePortwillDisableitself
uponreceptionofaBPDU.IfEnabledhePortwillentertheError-DisabledStateandwillberemovedfromthe
activetopology.
Port Error Recovery:
AllowsyoutosetwhetheraPortintheError-DisabledStatecanautomaticallyre-enableditself.If
RecoveryisnotenabledPortshavetobeDisabledthenRe-enabledfornormalSTPoperationtoresume.Thecondition
isalsoclearedbyasystemReboot.
Port Error Recovery Timeout:
AllowsyoutosetthePortErrorRecoveryTimeout.ThevalidRangeis30-86400seconds.
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Save:
cClickctocsavecanycunsavedcchanges.
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Reset:
cClickctoccancelcanycunsavedcchangescandcrevertctocpreviously-savedcvalues.cNotcavailableconcecchangescarecsaved.