需求
由于网络规模迅速扩大,当前中心交换机(Device A)转发能力已经不能满足需求,需要另外增加一台设备Device B。现需要将两台设备配置IRF2堆叠,将网络转发能力提高一倍,并实现网络易管理、易维护。Device A和Device B分别使用自带的两个万兆口做堆叠口。也可以只用一个接口堆叠,根据实际情况而定。
网络拓补
实验思路
# Device A保留缺省编号为1,不需要进行配置。同时,在Device B上将设备的成员编号修改为2。
#配置堆叠口
#激活DeviceA和DeviceB的IRF端口配置。
#IRF-port端口编号说明,irf-port 1/2中,第一个数字代表的是设备成员编号,第二个数字是接口编号。堆叠要求使用逻辑端口1对接逻辑端口2。即,如若第一台配置irf-port1/2,则第二台需要是用irf-port2/1对接。如若第一台使用irf-port1/1,则第二台需要配置irf-port2/2。
#设备配置好IRF2配置后,要先保存再激活配置。
实验代码
DeviceA
<H3C>system-view System View: return to User View with Ctrl+Z. [H3C]undo info-center enable Information center is disabled. [H3C]sysname DeviceA //命名设备 [DeviceA]interface range Ten-GigabitEthernet 1/0/49 to Ten-GigabitEthernet 1/0/50 //进入1/0/49-50 万兆口 [DeviceA-if-range]shutdown //将端口停止启动 [DeviceA-if-range]quit [DeviceA]irf-port 1/2 //进入堆叠端口号 1/2 [DeviceA-irf-port1/2]port group interface Ten-GigabitEthernet 1/0/49 //49端口加入组 You must perform the following tasks for a successful IRF setup: Save the configuration after completing IRF configuration. Execute the "irf-port-configuration active" command to activate the IRF ports. [DeviceA-irf-port1/2]port group interface Ten-GigabitEthernet 1/0/50//50端口加入组 [DeviceA-irf-port1/2]quit [DeviceA]interface range Ten-GigabitEthernet 1/0/49 to Ten-GigabitEthernet 1/0/50 [DeviceA-if-range]undo shutdown //启动两个万兆端口 [DeviceA-if-range]quit [DeviceA]save force //保存 [DeviceA]irf-port-configuration active//激活IRF端口配置
DeviceB
<H3C> <H3C>sy System View: return to User View with Ctrl+Z. [H3C]undo info-center enable Information center is disabled. [H3C]sysname DeviceB [DeviceB]irf member 1 renumber 2 Renumbering the member ID may result in configuration change or loss. Continue?[Y/N]:y [DeviceB]quit <DeviceB>reboot Press ENTER to get started. <DeviceB>system-view System View: return to User View with Ctrl+Z. [DeviceB]interface range Ten-GigabitEthernet 2/0/49 to t [DeviceB]interface range Ten-GigabitEthernet 2/0/49 to Ten-GigabitEthernet 2/0/50 [DeviceB-if-range]shutdown [DeviceB-if-range]quit [DeviceB]irf-port 2/1 [DeviceB-irf-port2/1]port group interface Ten-GigabitEthernet 2/0/49 [DeviceB-irf-port2/1]port group interface Ten-GigabitEthernet 2/0/50 [DeviceB-irf-port2/1]quit [DeviceB]interface range Ten-GigabitEthernet 2/0/49 to Ten-GigabitEthernet 2/0/50 [DeviceB-if-range]undo shutdown [DeviceB-if-range]quit [DeviceB]save force Validating file. Please wait... Saved the current configuration to mainboard device successfully. [DeviceB]irf-port-configuration active
总结
我们用命令display irf发现,Master(主要的)是DeviceA, Standby(备用的)是DeviceB
[DeviceA]display irf MemberID Role Priority CPU-Mac Description *+1 Master 1 7ed0-4678-0104 --- 2 Standby 1 7ed0-57d7-0204 --- -------------------------------------------------- * indicates the device is the master. + indicates the device through which the user logs in. The bridge MAC of the IRF is: 7ed0-4678-0100 Auto upgrade : yes Mac persistent : 6 min Domain ID : 0 [DeviceA]
配置完成后,发现两台主机的系统命名都变成了“DeviceA”,因为A是主交换机,都以主交换机为主。
H3C交换机,上面有两种堆叠的方式
假如有三台设备,A,B,C
环叠:A接B,B接C,C接A
直连:A接B,B接C
初学堆叠,以后回来补充说明。
BFD-MAD分裂检测方法(必配,为了业务)
IRF设备一旦分裂,会变成两台配置完全相同的设备,导致业务转发有问题。为了避免此类问题出现,可以配置分裂检测。设备一旦检测到IRF2分裂,则自动关闭备设备的所有非保留端口。在此介绍BFD MAD分裂检测配置方法。使用网线Device A上的端口GigabitEthernet1/0/1和Device B上的端口GigabitEthernet2/0/1连接起来。
[gaomin]vlan 1000 //创建vlan1000 [gaomin-vlan1000]port GigabitEthernet 1/0/1//将两个端口加入此vlan [gaomin-vlan1000]port GigabitEthernet 2/0/1 [gaomin-vlan1000]quit [gaomin]interface Vlan-interface 1000 [gaomin-Vlan-interface1000]mad bfd enable [gaomin-Vlan-interface1000]mad ip address 10.1.1.1 30 member 1//此处IP地址可以随意设置 [gaomin-Vlan-interface1000]mad ip address 10.1.1.2 30 member 2//但是要和成员1IP地址在一个网段 [gaomin-Vlan-interface1000]quit [gaomin]interface GigabitEthernet 1/0/1 [gaomin-GigabitEthernet1/0/1]undo stp en//生成树和BFD-MAD功能互斥,所以要关闭STP服务 [gaomin-GigabitEthernet1/0/1]quit [gaomin]interface GigabitEthernet 2/0/1 [gaomin-GigabitEthernet2/0/1]undo stp enable [gaomin-GigabitEthernet2/0/1]
心跳线:就是BFD-MAD配置的那两个端口,即G1/0/1和G2/0/1端口物理上所连的LC的光纤跳线,就称为心跳线。
堆叠线:就是本案例中万兆口G1/0/49.G1/0/50和G2/0/49,G2/0/50端口物理上所连的线,称为堆叠线,实际中由于价格昂贵,也可以用普通LC光纤跳线代替。
本文来源:HTTPs://blog.csdn.net/NeverGUM/article/details/103652420
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