预览加载中，请您耐心等待几秒...

CISCO官方配置手册SPAN.pdf

预览
1/10
2/10
3/10
4/10
5/10
6/10
7/10
8/10
9/10
10/10

亲，该文档总共24页，到这已经超出免费预览范围，如果喜欢就直接下载吧～

下载提示 文本预览

如果您无法下载资料，请参考说明：

1、部分资料下载需要金币，请确保您的账户上有足够的金币

2、已购买过的文档，再次下载不重复扣费

3、资料包下载后请先用软件解压，在使用对应软件打开

CHAPTER24 ConfiguringSPANandRSPAN ThischapterdescribeshowtoconfigureSwitchedPortAnalyzer(SPAN)andRemoteSPAN(RSPAN) onyourCatalyst3550switch. NoteForcompletesyntaxandusageinformationforthecommandsusedinthischapter,seethecommand referenceforthisrelease. Thischapterconsistsofthesesections: •UnderstandingSPANandRSPAN,page24-1 •ConfiguringSPAN,page24-8 •ConfiguringRSPAN,page24-16 •DisplayingSPANandRSPANStatus,page24-24 UnderstandingSPANandRSPAN YoucananalyzenetworktrafficpassingthroughportsorVLANsbyusingSPANtosendacopyofthe traffictoanotherportontheswitchthathasbeenconnectedtoaSwitchProbedeviceorotherRemote Monitoring(RMON)probeorsecuritydevice.SPANmirrorsreceivedorsent(orboth)trafficona sourceportandreceivedtrafficononeormoresourceportsorsourceVLANs,toadestinationportfor analysis. Forexample,inFigure24-1,alltrafficonport4(thesourceport)ismirroredtoport8(thedestination port).Anetworkanalyzeronport8receivesallnetworktrafficfromport4withoutbeingphysically attachedtoport4. Catalyst3550MultilayerSwitchSoftwareConfigurationGuide 78-16610-0224-1 Chapter24ConfiguringSPANandRSPAN UnderstandingSPANandRSPAN Figure24-1ExampleSPANConfiguration Port4trafficmirrored 12345678...onPort8 45 36 27 18 Networkanalyzer 111414 OnlytrafficthatentersorleavessourceportsortrafficthatenterssourceVLANscanbemonitoredby usingSPAN;trafficthatgetsroutedtoingresssourceportsorsourceVLANscannotbemonitored.For example,ifincomingtrafficisbeingmonitored,trafficthatgetsroutedfromanotherVLANtothesource VLANisnotmonitored;however,trafficthatisreceivedonthesourceVLANandroutedtoanother VLANismonitored. RSPANextendsSPANbyenablingremotemonitoringofmultipleswitchesacrossyournetwork.The trafficforeachRSPANsessioniscarriedoverauser-specifiedRSPANVLANthatisdedicatedforthat RSPANsessioninallparticipatingswitches.TheSPANtrafficfromthesourcesiscopiedontothe RSPANVLANthroughareflectorportandthenforwardedovertrunkportsthatarecarryingtheRSPAN VLANtoanyRSPANdestinationsessionsmonitoringtheRSPANVLAN,asshownin