Specifications

clear spantree backuproot
6-22 Spanning Tree Configuration
Mode
Switchcommand,read‐write.
Usage
TheSpanningTreebackuprootfunctionisdisabledbydefaultontheSecureStackC3.Whenthis
featureisenabledandtheswitchisdirectlyconnectedtotherootbridge,staleSpanningTree
informationispreventedfromcirculatingiftherootbridgeislost.Iftherootbridgeislost,the
backup
rootwilldynamicallyloweritsbridgeprioritysothatitwillbeselectedasthenewroot
overthelostrootbridge.
Example
ThisexampleshowshowtoenablethebackuprootfunctiononSID2:
C3(rw)->set spantree backuproot 2 enable
clear spantree backuproot
UsethiscommandtoresettheSpanningTreebackuprootfunctiontothedefaultstateofdisabled.
Syntax
clear spantree backuproot sid
Parameters
Defaults
None.
Mode
Switchcommand,read‐write.
Example
ThisexampleshowshowtoresetthebackuprootfunctiontodisabledonSID2:
C3(rw)->clear spantree backuproot 2
show spantree tctrapsuppress
UsethiscommandtodisplaythestatusoftopologychangetrapsuppressiononRapidSpanning
Treeedgeports.
Syntax
show spantree tctrapsuppress
Parameters
None.
sid SpecifiestheSpanningTreeonwhichtoclearthebackuproot
function.Validvaluesare 0‐4094.