Zte ZXR10 2928E - 4.36 Single Port Loop Detection Configuration

ZXR102900ESeriesCongurationGuide
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port-1900d0d0092918110BSZXR102918E-PSport-9Unknown
VersionV2.05..
zte(cfg)#showlldpentry
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LocalPort:port-19
ChassisID:00d0d0092918(MACAddress)
PortID:port-9(InterfaceName)
TTLID:100(Timetolive)
PortDescription:port-9statusisup,media-typeis100BaseT,pvidis1.
SystemName:zte
SystemDescription:ZXR102918E-PSVersionV2.05.10.B10
SystemCapability:BridgeSwitch
4.36SinglePortLoopDetectionConguration
SinglePortLoopDetectionOverview
Singleportloopdetectionistocheckwhetheraloopexistsintheportsoftheswitch.Ifsuch
aloopexists,itmayresultinerrorsinlearningMACaddressesandmayeasilycausea
broadcaststorm.Inseverecase,switchandnetworkmaybedown.Startingthesingleport
loopdetectionanddisablingtheportwithloopcanefcientlyavoidtheinuencecaused
byportloop.
Theswitchsendsatestpacketthroughaport.Ifthistestpacketisreceivedthroughthe
portwithoutanychange(oronlyatagisattached),itindicatesthataloopexistsinthis
port.
Thetestpacketsentbytheswitchincludesthefollowingthreeparameters:
lSourceMACaddress:ItindicatestheMACaddressoftheswitch.TheMACaddress
ofeachswitchisunique.
lPortNumber:Portnumberscorrespondtothenumbersoftheportsontheswitchone
byone.
lDiscriminationField:Foreachswitch,thedigitalsignatureofeachportisdifferent.
Whenthreeparametersinthereceivingandsendingtestpacketsaresame,theloop
denitelyexistsonthisport.
ConguringSinglePortLoopDetection
Thecongurationofsingleportloopdetectionincludesthefollowingcontents:
CommandFunction
zte(cfg)#setloopdetectsendpktinterval<5-60>
Setstheintervalforsendingloop
detectionpacket.
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SJ-20120409144109-002|2012-07-02(R1.0)ZTEProprietaryandCondential