H3C交换机IRF典型配置指导

i目录1IRF典型配置举例·······························································································································1-1 1.1简介···················································································································································1-1 1.2使用限制············································································································································1-1 1.2.1硬件限制·································································································································1-1 1.2.2软件限制·································································································································1-1 1.2.3单板使用限制··························································································································1-1 1.2.4IRF端口连接限制····················································································································1-1 1.3选择MAD检测方式·····························································································································1-2 1.4使用四台设备搭建IRF典型配置举例（LACPMAD检测方式）·························································1-2 1.4.1适用产品和版本······················································································································1-2 1.4.2组网需求·································································································································1-2 1.4.3搭建IRF的配置························································································································1-3 1.4.4LACPMAD配置······················································································································1-8 1.4.5业务配置·······························································································································1-10 1.4.6验证配置·······························································································································1-14 1.4.7配置文件·······························································································································1-16 1.5使用四台设备搭建IRF典型配置举例（BFDMAD检测方式）··························································1-21 1.5.1适用产品和版本····················································································································1-21 1.5.2组网需求·······························································································································1-21 1.5.3搭建IRF的配置······················································································································1-22 1.5.4BFDMAD配置······················································································································1-26 1.5.5业务配置·······························································································································1-28 1.5.6验证配置·······························································································································1-33 1.5.7配置文件·······························································································································1-35 1-11IRF典型配置举例本手册中的举例仅适用于S10500系列交换机。1.1简介IRF（IntelligentResilientFramework，智能弹性架构）是H3C自主研发的软件虚拟化技术，通过将多台设备虚拟为一台设备，可以简化网络拓扑，提高管理效率，并能提供1:N的设备级备份，帮助您实现业界领先的企业网、数据中心汇聚/核心层解决方案。本章将为您介绍如果使用多台S10500系列交换机组建基于IRF技术的虚拟化设备。1.2使用限制1.2.1硬件限制•S10500系列交换机最多支持使用四台设备建立IRF。•在S10500系列交换机中，只有相同型号的机型之间才能够建立IRF。•S10500系列交换机需要使用10GE/40GE端口作为IRF连接端口，请准备具有10GE/40GE端口的单板，以及相应速率的XFP/SFP+/QSFP+模块与光纤、或SFP+/QSFP+/QSFP+toSFP+电缆。1.2.2软件限制参与组建IRF的S10500系列交换机必须使用相同的软件版本。1.2.3单板使用限制•在使用三台或四台设备建立IRF时，不能使用OAA业务板。•在IRF环境中，Slave设备上的主控板不能被全部拔出，每台设备上都必须至少存在一块主控板才能正常运行。1.2.4IRF端口连接限制•本设备上与IRF-Port1绑定的IRF物理端口只能和邻居成员设备IRF-Port2口上绑定的IRF物理端口相连，本设备上与IRF-Port2口绑定的IRF物理端口只能和邻居成员设备IRF-Port1口上绑定的IRF物理端口相连。•在进行IRF物理连接时，必须保证成员设备间物理连接形式为直连，即IRF连接的物理路径上不能存在其他网络设备。•只有使用三台或四台设备建立IRF时，才支持环形连接拓扑。•当选用具有40GEQSFP+端口的SF单板进行IRF连接时，由于40GEQSFP+端口具备拆分成4个10GE端口的功能，当执行拆分或合并操作时需要重启该单板，因此请提前规划好40GEQSFP+端口的使用方式，避免IRF形成后重启单板可能对IRF拓扑产生的影响。40GEQSFP+端口拆分和合并功能仅Release1203及以后的版本支持。1-21.3选择MAD检测方式设备支持的MAD检测方式有LACPMAD检测和BFDMAD检测。两种MAD检测机制各有特点，用户可以根据现有组网情况进行选择。表1-1MAD检测机制的比较MAD检测方式优势限制LACPMAD检测速度快，利用现有聚合组网即可实现，无需占用额外接口，利用聚合链路同时传输普通业务报文和MAD检测报文（扩展LACP报文）组网中需要使用H3C设备作为中间设备，每个成员设备都需要连接到中间设备BFDMAD检测速度较快，组网形式灵活，对其它设备没有要求配置专用三层接口，这些接口不能再传输普通业务流量•如果不使用中间设备，则要求成员设备间是全链接，即每个成员设备都必须和其它所有成员设备相连。该链路专用于MAD检测，不能再传输普通业务流量。该方式适用于成员设备少，并且物理距离比较近的组网环境•如果使用中间设备，组网时每个成员设备都需要连接到中间设备，这些BFD链路专用于MAD检测因为LACPMAD和BFDMAD冲突处理的原则不同，请不要同时配置。1.4使用四台设备搭建IRF典型配置举例（LACPMAD检测方式）1.4.1适用产品和版本表1-2配置适用的产品与软硬件版本关系产品软件版本S10500系列以太网交换机Release1120系列，Release1130系列，Release1200系列1.4.2组网需求某数据中心搭建的组网如图1-1所示，接入层和汇聚层规划为二层环境，即所有服务器群的网关均指向核心层的路由器设备。现要求使用四台S10500设备，使用IRF技术搭建具备高密度接入能力和高可靠性的汇聚层，并使用LACPMAD功能及时发现和处理IRF的分裂事件。。如果您的网络在接入层和汇聚层是三层环境，请参考1.5使用四台设备搭建IRF典型配置举例（BFDMAD检测方式）中业务配置部分的内容。1-3图1-1组网规划图为完成组网需求，我们将配置分为以下三部分进行：•搭建IR