Enterasys b5

set spantree backuproot
9-22 Spanning Tree Configuration
set spantree backuproot
UsethiscommandtoenableordisabletheSpanningTreebackuprootfunctionontheswitch.
Syntax
set spantree backuproot sid {disable | enable}
Parameters
Defaults
None.
Mode
Switchcommand,read‐write.
Usage
TheSpanningTreebackuprootfunctionisdisabledbydefaultontheEnterasysB5.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:
B5(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.
sid SpecifiestheSpanningTreeinstanceonwhichtoenableordisablethe
backuprootfunction.Validvaluesare0‐4094 .
disable|enable Enablesordisablesthebackuprootfunction.
sid SpecifiestheSpanningTreeonwhichtoclearthebackuproot
function.Validvaluesare0‐4094.