Specifications

show spantree nonforwardingreason Configuring Spanning Tree Loop Protect Features
Enterasys Matrix N Standalone (NSA) Series Configuration Guide 6-77
Parameters
None.
Defaults
None.
Mode
Switchcommand,Read‐Write.
Example
ThisexampleshowshowtoresetthedisputedBPDUthresholdtothedefaultof0:
Matrix(rw)->clear spantree disputedbpduthreshold
show spantree nonforwardingreason
Usethiscommandtodisplaythereasonforplacingaportinanon‐forwardingstateduetoan
exceptionalcondition.
Syntax
show spantree nonforwardingreason [port port-string] [sid sid]
Parameters
Defaults
Ifnoport‐stringisspecified,non‐forwardingreasonisdisplayedforallports.
IfnoSIDisspecified,SID0isassumed.
Mode
Switchcommand,Read‐Only.
Usage
Exceptionalconditionscausingaporttobeplacedinlis teningorblockingstateincludeaLoop
Protectevent,receiptofdisputedBPDUs,andloopbackdetection.
Example
Thisexampleshowshowtodisplaythenon‐forwardingreasononge.1.1:
Matrix(rw)->show spantree nonforwardingreason port ge.1.1
Port ge.1.1 has not been placed in a non-forwarding state on SID 0 due to any
exceptional condition.
port‐string (Optional)Specifiesport(s)forwhichtodisplaythenon‐forwarding
reason.Foradetaileddescriptionofpossibleport‐stringvalues,referto
“PortStringSyntaxUsedintheCLI”onpage 4‐2.
sidsid (Optional)SpecifiesthespecificSpanningTree(s)forwhichtodisplay
thenon‐forwardingreason.Valid
valuesare0‐4094.Ifnotspecified,
SID0isassumed.