Enterasys b5

clear spantree tctrapsuppress
9-24 Spanning Tree Configuration
Usage
Bydefault,RSTPnon‐edge(bridge)portsthattransitiontoforwardingorblockingcausethe
switchtoissueatopologychangetrap.Whentopologychangetrapsuppressionisenabled,which
isthedevicedefault,edgeports(suchasendstationPCs)arepreventedfromsendingtopology
changetraps.Thisisbecause
thereisusuallynoneedfornetworkmanagementtomonitoredge
portSTPtransitionstates,suchaswhenPCsarepoweredon.Whentopologychangetrap
suppressionisdisabled,allports,includingedgeandbridgeports,willtransmittopologychange
traps.
Example
ThisexampleshowshowtoallowRapidSpanningTreeedgeportstotransmittopologychange
traps:
B5(rw)->set spantree tctrapsuppress disable
clear spantree tctrapsuppress
UsethiscommandtoclearthestatusoftopologychangetrapsuppressiononRapidSpanningTree
edgeportstothedefaultstateofenabled(edgeporttopologychangesdonotgeneratetraps).
Syntax
clear spantree tctrapsuppress
Parameters
None.
Defaults
None.
Mode
Switchcommand,read‐write.
Example
Thisexampleshowshowtocleartopologychangetrapsuppressionsetting:
B5(rw)->clear spantree tctrapsuppress
set spantree protomigration
UsethiscommandtoresettheprotocolstatemigrationmachineforoneormoreSpanningTree
ports.WhenoperatinginRSTPmode,thisforcesaporttotransmitMSTPBPDUs.
Syntax
set spantree protomigration <port-string>
Parameters
port‐string Resettheprotocolstatemigrationmachineforspecificport(s).Fora
detaileddescriptionofpossibleport‐stringvalues,referto“ PortString
SyntaxUsedintheCLI”onpage 7‐1.