02-IRF命令参考-IRF命令
IRF配置——精选推荐
IRF配置1、概述IRF（Intelligent Resilient Framework，智能弹性架构）是H3C⾃主研发的软件虚拟化技术。
它的核⼼思想是将多台设备通过IRF物理端⼝连接在⼀起，进⾏必要的配置后，虚拟化成⼀台“分布式设备”。
理解为堆叠有助于我们更快理解2、⼯作原理IRF分为四阶段：物理连接、设备间通过IRF端⼝进⾏信息收集、选举主备关系、IRF⾃⾏维护。
只需了解选举规则以及分裂处理机制，其它信息不必深⼊。
如果有需要可以单独debugIRF信息即可。
选举规则：根据IRF的优先级进⾏选举，Priority值⼤的则为MASTER，值⼩的为SLAVE。
分裂机制： (1)IRF分裂分为两种情况，主机或者备机整机down掉，那么OK直接更换新设备即可。
(2)如果是IRF链路或者端⼝down掉，主备之间需要IRF的⼼跳线（MAD检测）彼此互换IRF信息. 为避免⼆层信息混乱，IRF是让备机完全处于停机状态，It really doesnt work .3、常⽤名词IRF合并、IRF分裂、IRF端⼝、IRF⾓⾊、IRF主备4、IRF配置⽰例（1）配置A机为MASTER#设成员号及优先级irf mem 1 pri 4#把需要加⼊irf-port的端⼝down掉，shutdown XGE1/2/1,XGE1/2/2。
并加⼊相应的IRF group组interface Ten-GigabitEthernet1/2/1shutinterface Ten-GigabitEthernet1/2/2shutirf-port 1/1des IRF_PORT_1port group interface Ten-GigabitEthernet1/2/1port group interface Ten-GigabitEthernet1/2/2#重要⼀步，激活 IRF，很多⼈会忽略这条命令。
irf-port configuration active#保存配置save（2）配置B机为SLAVE#设成员号及优先级,H3C设备默认都是mem 1，需要retu为mem 2。
irf2技术详解
IRF2 技术详解简介 (2)工作机制 (3)发现邻居 (3)交换信息 (3)确认角色 (4)top管理 (4)设备管理与报文转发 (5)堆叠分裂多master的处理机制 (6)1简介Irf2第二代智能弹性架构是华三的高可靠性技术，是一种软件虚拟化的技术。
简单的来说就是可以把多台设备变成一台设备，就如同框式设备主用主控板和备用主控板一样，而且irf是一种局部技术，在网络关键部位使用，比如汇聚和核心，对网络整他并没有太大影响。
这种技术能够简化配置，保证网络可靠性的同时极大的简化网络结构，并且收敛速度非常快，这与mstp+vrrp的配置麻烦，结构复杂，收敛缓慢形成鲜明的对比，并且与mstp相比可以实现完全的负载分担。
在数据中心以及一些网络延迟要求严格的网络里能够起到很好的效果，组建简单快速高效的大二层网络。
与其他厂商的虚拟化技术相比irf2更加灵活，华三低端交换机也支持的比较好。
本文先对irf2技术进详细的分析，别且结合公司发展方向。
指出了irf2在今后网络中的使用场景。
2工作机制与其他协议类似，irf2分为发现邻居—交换信息—确定角色—top管理这几个阶段。
发现邻居：邻居发现较为简单无报文确认机制,irf默认堆叠口的对端就是邻居交换信息：设备通过堆叠口发送hello包，其中带有确认角色所需要的所有信息，比如域编号，成员编号，优先级，mac地址等。
确认角色：根据协议定义以及相关信息确认master 与slave角色，master设备管理堆叠top，计算路由，同步配置，但是master和slave共同完成数据转发。
维护top：包括堆叠的合并，分裂等。
2.1发现邻居堆叠口是有特殊的链接关系的，中有将对应的接口相连才能建立堆叠，堆叠线两断就是邻居。
具体的关系如下：链形环形top:2.2交换信息交换信息是确认角色的必要条件，irf根据hello报文多携带的信息，收集全堆叠top 信息，主要包括域编号（domain id），成员编号（member id），优先级，mac地址等。
H3C IRF典型配置举例
5.2 使用版本 ············································································································································· 20 5.3 搭建IRF的配置 ··································································································································· 20
H3C S5830V2&S5820V2 IRF 配置举例
Copyright © 2015 杭州华三通信技术有限公司 版权所有，保留一切权利。 非经本公司书面许可，任何单位和个人不得擅自摘抄、中的信息可能变动，恕不另行通知。
目录
1 简介 ······················································································································································ 1 2 配置前提 ··············································································································································· 1 3 使用限制 ··············································································································································· 1
IRF命令
1 IRF 配置命令
1.1 IRF 配置命令
1.1.1 chassis convert mode irf
mode irf undo chassis convert mode 【视图】 系统视图 【缺省级别】 3：管理级 【参数】 无 【描述】 chassis convert mode irf 命令用来将设备的运行模式切换到 IRF 模式。undo chassis convert mode 命令用来将设备的运行模式切换到独立运行模式。 设备出厂时处于独立运行模式。如果在本次运行过程中，没有修改设备的运行模式，则下次启动会 延用本次启动的运行模式；如果在本次运行过程中，修改了设备的运行模式，则下次启动时新的运 行模式生效。 请根据组网需要来配置设备的运行模式：IRF 模式专用于和别的设备形成 IRF，但因为进行 IRF 管 理和维护需要耗费一定的系统资源。所以，当设备单机运行或者仅仅与别的设备互为备份的时候可 以设置为独立运行模式。 需要注意的是确认模式切换操作后，设备会自动重启，完成运行模式的切换。 【举例】 # 设备当前处于独立运行模式时，将设备切换到 IRF 模式。
<Sysname> system-view [Sysname] chassis convert mode irf The device will switch to IRF mode and reboot. You are recommended to save the current running configuration and specify the configuration file for the next startup. Continue? [Y/N]:y Do you want to convert the content of the next startup configuration file flash:/startup.cfg to make it available in IRF mode? [Y/N]:y Please wait... Saving the converted configuration file to the main board succeeded. Slot 1: Saving the converted configuration file succeeded. Now rebooting, please wait...
03 h3cirf配置指导
H3C-IRF配置指导------ 据H3C官方技术文档整理yang 2012.2.231.1 IRF简介IRF（Intelligent Resilient Framework，智能弹性架构）是H3C自主研发的软件虚拟化技术，它的核心思想是将多台设备通过IRF物理端口连接在一起，进行必要的配置后，虚拟化成一台“虚拟设备”。
使用这种虚拟化技术可以集合多台设备的硬件资源和软件处理能力，实现多台设备的协同工作、统一管理和不间断维护。
1.1.2 IRF的优点1、简化管理。
IRF形成之后，用户连接到任何一台成员设备的任何一个端口都可以登录IRF系统，对IRF内所有成员设备进行统一配置和统一管理。
2、强大的网络扩展能力。
通过增加成员设备，可以轻松自如的扩展IRF系统的端口数、带宽和处理能力。
3、高可靠性。
IRF的高可靠性体现在多个方面，比如：IRF由两台成员设备组成，Master 设备负责IRF的运行、管理和维护，Slave设备在作为备份的同时也可以处理业务。
一旦Master设备故障，系统会迅速自动选举新的Master，以保证通过IRF的业务不中断，从而实现了设备的1:N备份；成员设备之间IRF物理端口支持聚合功能，IRF和上、下层设备之间的物理连接也支持聚合功能，这样通过多链路备份提高了IRF系统的可靠性。
1.2 基本概念1. 角色IRF中所有的单台设备称为成员设备。
成员设备按照功能不同，分为两种角色：Master：负责管理整个IRF的成员设备，由角色选举产生。
一个IRF中同一时刻只能有一台Master设备。
Slave：隶属于Master设备的成员设备，作为Master设备的备份设备运行，由角色选举产生。
IRF中除了Master设备，其它设备都是Slave设备。
2. 成员编号IRF中使用成员编号（Member ID）来标识和管理成员设备，IRF中所有设备的成员编号都是唯一的。
比如，IRF中接口的编号会加入成员编号信息：设备在独立运行模式下，某个接口的编号为GigabitEthernet3/0/1；当该设备加入IRF后，如果成员编号为2，则该接口的编号将变为GigabitEthernet2/3/0/1。
02-IRF命令参考-IRF命令
1 IRF配置命令 ...................................................................................................................................... 1-1 1.1 IRF配置命令 ...................................................................................................................................... 1-1 1.1.1 chassis convert mode irf......................................................................................................... 1-1 1.1.2 display irf ................................................................................................................................ 1-2 1.1.3 display irf configuration........................................................................................................... 1-3 1.1.4 display irf topology.................................................................................................................. 1-4 1.1.5 display irf-port load-sharing mode .......................................................................................... 1-5 1.1.6 display mad ............................................................................................................................ 1-6 1.1.7 display switchover state ......................................................................................................... 1-8 1.1.8 irf auto-merge enable ............................................................................................................. 1-9 1.1.9 irf auto-update enable .......................................................................................................... 1-10 1.1.10 irf domain............................................................................................................................ 1-10 1.1.11 irf link-delay ........................................................................................................................ 1-11 1.1.12 irf mac-address persistent .................................................................................................. 1-11 1.1.13 irf member .......................................................................................................................... 1-12 1.1.14 irf member description........................................................................................................ 1-13 1.1.15 irf member priority............................................................................................................... 1-13 1.1.16 irf member renumber.......................................................................................................... 1-14 1.1.17 irf priority............................................................................................................................. 1-15 1.1.18 irf switch-to ......................................................................................................................... 1-16 1.1.19 irf-port load-sharing mode .................................................................................................. 1-17 1.1.20 irf-port member-id/port-number .......................................................................................... 1-17 1.1.21 irf-port port-number ............................................................................................................ 1-18 1.1.22 mad bfd enable................................................................................................................... 1-19 1.1.23 mad enable......................................................................................................................... 1-19 1.1.24 mad exclude interface ........................................................................................................ 1-20 1.1.25 mad ip address ................................................................................................................... 1-20 1.1.26 mad restore ........................................................................................................................ 1-21 1.1.27 port group interface ............................................................................................................ 1-22
IRF命令参考-整本手册
H3C S7500E系列以太网交换机IRF命令参考杭州华三通信技术有限公司资料版本：20110607-C-1.02产品版本：Release 6613及以上版本Copyright © 2010-2011 杭州华三通信技术有限公司及其许可者版权所有，保留一切权利。
未经本公司书面许可，任何单位和个人不得擅自摘抄、复制本书内容的部分或全部，并不得以任何形式传播。
H3C、、Aolynk、、H3Care、、TOP G、、IRF、NetPilot、Neocean、NeoVTL、SecPro、SecPoint、SecEngine、SecPath、Comware、Secware、Storware、NQA、VVG、V2G、V n G、PSPT、XGbus、N-Bus、TiGem、InnoVision、HUASAN、华三均为杭州华三通信技术有限公司的商标。
对于本手册中出现的其它公司的商标、产品标识及商品名称，由各自权利人拥有。
由于产品版本升级或其他原因，本手册内容有可能变更。
H3C保留在没有任何通知或者提示的情况下对本手册的内容进行修改的权利。
本手册仅作为使用指导，H3C尽全力在本手册中提供准确的信息，但是H3C并不确保手册内容完全没有错误，本手册中的所有陈述、信息和建议也不构成任何明示或暗示的担保。
前言H3C S7500E系列以太网交换机命令参考共分为十二本手册，针对S7500E Release 6610系列软件版本支持的命令进行了介绍。
《IRF命令参考》主要介绍在组建基于IRF技术的虚拟化设备的过程中所需要使用的命令，包括配置IRF端口绑定、配置成员设备的编号和优先级，以及IRF链路的检测和维护过程中所使用的命令。
前言部分包含如下内容：z读者对象z内容组织z本书约定z产品配套资料z资料获取方式z技术支持z资料意见反馈读者对象本手册主要适用于如下工程师：z网络规划人员z现场技术支持与维护人员z负责网络配置和维护的网络管理员内容组织本书主要从如下部分进行介绍：命令参考内容IRF命令参考 IRF配置命令本书约定1.命令行格式约定格式意义粗体命令行关键字（命令中保持不变、必须照输的部分）采用加粗字体表示。
02-IRF配置指导-IRF配置
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1.1 IRF配置命令
1.1.1 chassis convert mode irf
【命令】
chassis convert mode irf undo chassis convert mode 【视图】 系统视图 【缺省级别】 3：管理级 【参数】 无 【描述】 chassis convert mode irf 命令用来将设备的运行模式切换到 IRF 模式。undo chassis convert mode 命令用来将设备的运行模式切换到独立运行模式。 设备出厂时处于独立运行模式。如果在本次运行过程中，没有修改设备的运行模式，则下次启动会 延用本次启动的运行模式；如果在本次运行过程中，修改了设备的运行模式，则下次启动时新的运 行模式生效。 请根据组网需要来配置设备的运行模式：当设备从独立运行模式切换到 IRF 模式后，即便只有一台 设备也会形成 IRF。因为管理和维护 IRF 需要耗费一定的系统资源，所以，如果当前组网中设备不 需要和别的设备组成 IRF 时，建议将运行模式配置为独立运行模式。 需要注意的是： • 切换运行模式，设备会自动重启，使新的运行模式生效。为防止配置丢失，请在切换模式前，
目录
1 IRF····················································································································································· 1-1 1.1 IRF配置命令 ······································································································································1-1 1.1.1 chassis convert mode irf·········································································································1-1 1.1.2 display irf ································································································································1-2 1.1.3 display irf configuration···········································································································1-4 1.1.4 display irf topology··················································································································1-5 1.1.5 display irf link ··························································································································1-6 1.1.6 display mad ····························································································································1-7 1.1.7 display restricted port ·············································································································1-8 1.1.8 irf auto-merge enable ·············································································································1-9 1.1.9 irf auto-update enable ··········································································································1-10 1.1.10 irf domain····························································································································1-11 1.1.11 irf link-delay ························································································································1-12 1.1.12 irf link-status detect enable·································································································1-13 1.1.13 irf link-status auto-recover enable ······················································································1-13 1.1.14 irf mac-address persistent ··································································································1-14 1.1.15 irf member ··························································································································1-15 1.1.16 irf member description········································································································1-16 1.1.17 irf member priority···············································································································1-16 1.1.18 irf member renumber··········································································································1-17 1.1.19 irf mode enhanced··············································································································1-18 1.1.20 irf priority·····························································································································1-20 1.1.21 irf switch-to ·························································································································1-21 1.1.22 irf-port member-id/port-number ··························································································1-22 1.1.23 irf-port port-number ············································································································1-22 1.1.24 mad arp enable···················································································································1-23 1.1.25 mad bfd enable···················································································································1-24 1.1.26 mad enable·························································································································1-25 1.1.27 mad exclude interface ········································································································1-26 1.1.28 mad ip address ···················································································································1-26 1.1.29 mad restore ························································································································1-27 1.1.30 port group interface ············································································································1-28 1.1.31 set irf slot member-id··········································································································1-29