资源描述：
《思科交换机的IGMP命令手册.pdf》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。
1、CHAPTER24ConfiguringIGMPSnoopingandMVRThischapterdescribeshowtoconfigureInternetGroupManagementProtocol(IGMP)snoopingontheCatalyst3750switch,includinganapplicationoflocalIGMPsnooping,MulticastVLANRegistration(MVR).Italsoincludesproceduresforcontrollingmulticastgroupmembe
2、rshipbyusingIGMPfilteringandproceduresforconfiguringtheIGMPthrottlingaction.Unlessotherwisenoted,thetermswitchreferstoastandaloneswitchandaswitchstack.NoteForIPVersion6(IPv6)traffic,MulticastListenerDiscovery(MLD)snoopingperformsthesamefunctionasIGMPsnoopingforIPv4traffi
3、c.ForinformationaboutMLDsnooping,seeChapter39,“ConfiguringIPv6MLDSnooping.”NoteForcompletesyntaxandusageinformationforthecommandsusedinthischapter,seetheswitchcommandreferenceforthisreleaseandthe“IPMulticastRoutingCommands”sectionintheCiscoIOSIPCommandReference,Volume3of
4、3:Multicast,Release12.2fromtheCisco.compageunderDocumentation>CiscoIOSSoftware>12.2Mainline>CommandReferences.Thischapterconsistsofthesesections:•UnderstandingIGMPSnooping,page24-2•ConfiguringIGMPSnooping,page24-7•DisplayingIGMPSnoopingInformation,page24-16•Understanding
5、MulticastVLANRegistration,page24-17•ConfiguringMVR,page24-20•DisplayingMVRInformation,page24-24•ConfiguringIGMPFilteringandThrottling,page24-24•DisplayingIGMPFilteringandThrottlingConfiguration,page24-29NoteYoucaneithermanageIPmulticastgroupaddressesthroughfeaturessuchas
6、IGMPsnoopingandMVR,oryoucanusestaticIPaddresses.Catalyst3750SwitchSoftwareConfigurationGuideOL-8550-0624-1Chapter24ConfiguringIGMPSnoopingandMVRUnderstandingIGMPSnoopingUnderstandingIGMPSnoopingLayer2switchescanuseIGMPsnoopingtoconstrainthefloodingofmulticasttrafficbydyn
7、amicallyconfiguringLayer2interfacessothatmulticasttrafficisforwardedtoonlythoseinterfacesassociatedwithIPmulticastdevices.Asthenameimplies,IGMPsnoopingrequirestheLANswitchtosnoopontheIGMPtransmissionsbetweenthehostandtherouterandtokeeptrackofmulticastgroupsandmemberports
8、.WhentheswitchreceivesanIGMPreportfromahostforaparticularmulticastgroup,theswitchaddsthehostportnumbert
