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ID:43606616
大小:659.31 KB
页数:15页
时间:2019-10-11
《【精品】组播案例与分析》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、组播案例与分析测试中心IP组播技术的出现及时解决了人量带宽资源的浪费。组播源仅发送一次信息,组播路由协议为组播数据包建立树型路由,被传递的信息在尽可能远的分叉路口才开始复制和分发,因此,信息能够被准确高效地传送到每个需耍它的用户。一、网络拓扑PIM-DMS3550组播源Vlan20客户端一i亠S2126GIGMP-Snooping二、交换机配置S3550:Systemsoftwareversion:2.41(2)BuiIdOct242005ReleaseBuildingconfiguration.・・Current
2、configuration:512bytesi■version1.0ihostname3550vlan1i■vlan10i•vlan20i•enablesecretlevel15WQ+/7R:lu_;CY&-8U03、net0/2switchportaccessvlan20interfaceVian10ipaddress192.168.10.1255.255.255.0ippim1■interfaceVian20ipaddress192.168.20.1255.255.255.0ippimiipmulticast-routingendS2126G:Systemsoftwareversion:1.63(8)BuildJun242006TestBuildingconfiguration.・•Currentconfiguration:4、337bytesi■version1.0i■hostnameS2126Gvlan1i•enablesecretlevel15%Q,lu_;C[-8U0Henablesecretlevel155%QH.Y*T7"_,tZ[V/YD+S(W&XGlX)sv,f■interfacevlan1noshutdownipaddress192.168.20.3255.255.255.0iipigmpsnoopingivglipigmpsnoopingvlan1mroutorinterfacef5、aslEthcrnct0/1(注意:由于网络中存在组播路由器S3550,所以在S2126G需要配置路由连接口,以便转发IGMPreportsIGMPleave或IGMPquery报文)end三、IP组播报文转发过程1、组播源发送组播报文FileEditViewGoCaptureAnalyzeStatisticsHelpCO*购2回①否盘⑥Q致胆叵6、Eilter▼7、Expression...IClearIApplyITimeSourceDestinationProtocol192.168.10.253224.1.1.8、4UDPUDPInfo224.1.1.420・249995sourceport:1212Destinationport:1212ArrivalTime:Jun27,200614:07:28.203238000Timedeltafrompreviouspacket:0.000000000secondsTimes4ncereferenegorfirstframe:0.000000000secondsFrameNumber:1PacketLengxh:298bytesCaptureLengxh:298bytesProto9、cols1nframe:eth:1p:udp:data□EthernwtII,Src:00:0f:ea:02:bc:latDst:01:00:5e:01:01:04Destination:01:00:5e:01:01:04(01:00:5e:01:01:04)Source:00:0f:ea:02:bc:la(Glga-Byt-02:bc:la)Type:IP(0x0800)BinternetProtocol,SrcAddr:192.168.10.253(192.168.10.253),DstAddr:224.1.110、.4(224.1.1.4)version:4Headerlength:20bytes田DifferentiatedservicesField:0x00(DSCP0x00:Default;ECN:0x00)TotalLength:284Identification:0xe21c(57884)田Flags:0x00Fragmentoffset:0Timetoli
3、net0/2switchportaccessvlan20interfaceVian10ipaddress192.168.10.1255.255.255.0ippim1■interfaceVian20ipaddress192.168.20.1255.255.255.0ippimiipmulticast-routingendS2126G:Systemsoftwareversion:1.63(8)BuildJun242006TestBuildingconfiguration.・•Currentconfiguration:
4、337bytesi■version1.0i■hostnameS2126Gvlan1i•enablesecretlevel15%Q,lu_;C[-8U0Henablesecretlevel155%QH.Y*T7"_,tZ[V/YD+S(W&XGlX)sv,f■interfacevlan1noshutdownipaddress192.168.20.3255.255.255.0iipigmpsnoopingivglipigmpsnoopingvlan1mroutorinterfacef
5、aslEthcrnct0/1(注意:由于网络中存在组播路由器S3550,所以在S2126G需要配置路由连接口,以便转发IGMPreportsIGMPleave或IGMPquery报文)end三、IP组播报文转发过程1、组播源发送组播报文FileEditViewGoCaptureAnalyzeStatisticsHelpCO*购2回①否盘⑥Q致胆叵
6、Eilter▼
7、Expression...IClearIApplyITimeSourceDestinationProtocol192.168.10.253224.1.1.
8、4UDPUDPInfo224.1.1.420・249995sourceport:1212Destinationport:1212ArrivalTime:Jun27,200614:07:28.203238000Timedeltafrompreviouspacket:0.000000000secondsTimes4ncereferenegorfirstframe:0.000000000secondsFrameNumber:1PacketLengxh:298bytesCaptureLengxh:298bytesProto
9、cols1nframe:eth:1p:udp:data□EthernwtII,Src:00:0f:ea:02:bc:latDst:01:00:5e:01:01:04Destination:01:00:5e:01:01:04(01:00:5e:01:01:04)Source:00:0f:ea:02:bc:la(Glga-Byt-02:bc:la)Type:IP(0x0800)BinternetProtocol,SrcAddr:192.168.10.253(192.168.10.253),DstAddr:224.1.1
10、.4(224.1.1.4)version:4Headerlength:20bytes田DifferentiatedservicesField:0x00(DSCP0x00:Default;ECN:0x00)TotalLength:284Identification:0xe21c(57884)田Flags:0x00Fragmentoffset:0Timetoli
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