以太网交换培训

HUAWEITECHNOLOGIESCO.,LTD.:40-47ptSlidesubtitle:26-30ptColor::whiteCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:Arial2020/9/21核心网IP技能培训（二）以太网交换HUAWEITECHNOLOGIESCO.,LTD.HuaweiConfidentialSlidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialThefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.Toprightcornerforfield-mark,customerorpartnerlogotypes.----------------Page2学习完此课程，您将会：掌握MAC、帧和VLAN的基本概念二层交换和三层交换的基本原理VLAN的扩展特性链路聚合的概念和配置HUAWEITECHNOLOGIESCO.,LTD.HuaweiConfidentialSlidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialThefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.Toprightcornerforfield-mark,customerorpartnerlogotypes.----------------Page3第1章帧、MAC的概念和二层转发第2章VLAN的基本概念和原理第3章三层交换机架构和转发结构和VLAN间路由第4章VLAN的扩展特性第5章链路聚合HUAWEITECHNOLOGIESCO.,LTD.HuaweiConfidentialSlidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialThefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.Toprightcornerforfield-mark,customerorpartnerlogotypes.----------------Page4OSI二层-数据链路层ApplicationPresentationSessionTransportIPDatelinkPhysicalApplicationPresentationSessionTransportIPDatelinkPhysicalHUAWEITECHNOLOGIESCO.,LTD.HuaweiConfidentialSlidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialThefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.Toprightcornerforfield-mark,customerorpartnerlogotypes.----------------Page5常见的以太网Frame格式最早的以太网格式的定义规范，由DigitalequipmentCorp，Intel，Xerox发展,后来被发展成IEEE标准，叫ethernet(DIX),也叫ethernetV2(ARPA).(交换机和路由器的常用格式）EthernetV2(ARPA)MACDE(6byte)MACSA(6byte)Type(2byte)Data（46－1500byte）FCS(4byte)802.3标准，IEEE标准组织在1980s年代发展802.3MACDE(6byte)MACSA(6byte)Length（2byte)Data（46－1500byte）FCS(4byte)其它的以太网Frame格式包括：802.3+802.2(LLC),802.3+802.2+SNAP802.3MACDE(6byte)MACSA(6byte)Length(2byte)DSAP(1byte)SSAP(1bytCONTROLL（1-2byte)OUI(3byte)TYPE(2byte)DataFCS(4byt802.2SNAPHUAWEITECHNOLOGIESCO.,LTD.HuaweiConfidentialSlidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialThefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.Toprightcornerforfield-mark,customerorpartnerlogotypes.----------------Page6Frame参数-MAC地址•MAC地址ΔMediaaccesscontrol，也叫硬件地址。为了控制在共享的介质的设备的访问，必须定义一个规则。MAC地址作用主要有1.在共享介质中唯一标识某台设备。2.控制设备的访问，当设备接受到一个Frame时，需要检查DEMAC，如果是自己的MAC地址，就接受该Frame。•MAC地址表示方法MAC地址是由48bit(6byte)组成，前3byte表示组织的唯一标识，后三位由该组织分配给每台设备。00E0-FC79-405FHUAWEI设备标识•Frame的种类：根据目的MAC的不同，可以分为三种帧，1.UnicastFrame2.Broadcast(全F，或者全0）3.multicast☆Cisco设备的MAC地址（前3byte），常见的有：00000C,HUAWEITECHNOLOGIESCO.,LTD.HuaweiConfidentialSlidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialThefollowingninegroupsofcolorsareanexampleofhowourdesigncolorscanbeused,pleasetakenotethatyoushouldonlyuseonedesigncolorgroupperslide.Forspecificusagedetails,refertothe“TypesettingStandard”.Toprightcornerforfield-mark,customerorpartnerlogotypes.----------------Page7Frame参数-TypeTypeType表示DATA里面封装的报文类型，常见的类型有：Protocol16进制位IP0800ARP0806802.30000-05DC▣为了识别是EthernetII和802.3的帧，EthernetII的type域从1536（16进制位为600）开始，在802.3中，数据的长度小于或者等于1500（05DC)。HUAWEITECHNOLOGIESCO.,LTD.HuaweiConfidentialSlidetitle:32-35ptColor:R153G0B0CorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialSlidetext:20-22ptBulletslevel2-5:18ptColor:BlackCorporateFont:FrutigerNextLTMediumFonttobeusedbycustomersandpartners:ArialThefollowingninegr