Chapter2Alarm
PossibleCauses
TheBPDUpacketisreceivedattheedgeportonwhichtheBPDUGuardfunctionis
enabled.
HandlingProcedure
1.Checkwhethertheedgeportisconnectedwiththeuserterminal.
lIfyes,gotostep2.
lIfno,modifytheportasanon-edgeport.
2.FindoutthesourceoftheBPDUpacketandcheckwhethernetworkattackoccurs.If
yes,contactthenetworkengineer.
2.4.2134243760MSTPportLOOPGuard
AlarmProperty
lAlarmCode:134243760
lAlarmInformation:ThealarmisreportediftheportisblockedduetotheLOOPGuard
function.
lAlarmLevel:Major
lAlarmType:EnvironmentAlarm
Sub-codeDescription
None
EffectontheSystem
Theportisblockedforsometime.
PossibleCauses
TheportconguredwithLOOPGuardfunctiondoesnotreceivetheBPDUpacketfora
longtime.
HandlingProcedure
CheckwhethertheportshouldbeconguredwithLOOPGuardfunction,whetherthelink
iscongested,whetherthereareunidirectionallinkproblems,andwhethertheportreceives
andsendsBPDUpacketsproperly.
1.CheckwhethertheportconguredwithLOOPGuardfunctionisarootport,standby
port,oralternateport.
lIfyes,gotostep2.
lIfno,canceltheLoopGuardconguration.
2.Checkwhetherthelinkiscongestedorthereareunidirectionallinkproblems.Ifyes,
contactthenetworkengineer.
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