Enterasys Matrix DFE-Gold Series

Configuring Spanning Tree Loop Protect Features show spantree disputedbpduthreshold
6-76 Spanning Tree Configuration
Usage
AdisputedBPDUisoneinwhichtheflagsfieldindicatesadesignatedroleandlearning,andthe
priorityvectorisworsethanthatalreadyheldbytheport.IfadisputedBPDUisreceivedtheport
isforcedtothelisteningstate.Refertothe802.1Q‐2005standard,IEEEStandard
forLocaland
MetropolitanAreaNetworks–VirtualBridgedLocalAreaNetworks,forafulldescriptionofthedispute
mechanism,whichpreventsloopingincasesofone‐waycommunication.
ThedisputedBPDUthresholdisanintegervariablethatrepresentsthenumberofdisputed
BPDUsthatmustbereceivedonagiven
port/SIDuntiladisputedBPDUtrapissentandasyslog
messageisissued.Forexample,ifthethresholdis10,thenatrapisissuedwhen10,20,30,andso
on,disputedBPDUshavebeenreceived.
Ifthevalueis0,trapsarenotsent.Thetrapindicates
port,SIDandtotalDisputedBPDUcount.
Thedefaultis0.
Example
ThisexampleshowshowtosetthedisputedBPDUthresholdvalueto5:
Matrix(rw)->set spantree disputedbpduthreshold 5
show spantree disputedbpduthreshold
UsethiscommandtodisplaythecurrentvalueofthedisputedBPDUthreshold.
Syntax
show spantree disputedbpduthreshold
Parameters
None.
Defaults
None.
Mode
Switchcommand,Read‐Only.
Example
ThisexampleshowshowtodisplaythecurrentdisputedBPDUthreshold:
Matrix(rw)->show spantree disputedbpduthreshold
Disputed BPDU threshold is set to 0
clear spantree disputedbpduthreshold
UsethiscommandtoreturnthedisputedBPDUthresholdtoitsdefaultvalueof0,meaningthat
disputedBPDUtrapsshouldnotbesent.
Syntax
clear spantree disputedbpduthreshold