Enterasys b5

set spantree disputedbpduthreshold
9-52 Spanning Tree Configuration
Defaults
None.
Mode
Switchcommand,read‐write.
Example
ThisexampleshowshowtoresettheLoopProtecteventnotificationstatetothedefaultof
disabled.
B5(rw)->clear spantree lptrapenable
set spantree disputedbpduthreshold
UsethiscommandtosetthedisputedBPDUthreshold,whichisthenumberofdisputedBPDUs
thatmustbereceivedonagivenport/SIDuntiladisputedBPDUtrapissent.
Syntax
set spantree disputedbpduthreshold value
Parameters
Defaults
None.
Mode
Switchcommand,read‐write.
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.
value SpecifiesthenumberofdisputedBPDUsthatmustbereceivedona
givenport/SIDtocauseadisputedBPDUtraptobesent.
Athresholdof0indicatesthattrapsshouldnotbesent.Thedefault
valueis0.