S7506X-A

<H3C>system-view

[H3C]irf member 1

[H3C]irf priority 32

[H3C]irf-port 2

[H3C-irf-port2]port group interface ten-gigabitethernet 1/0/47

[H3C-irf-port2]port group interface ten-gigabitethernet 1/0/48

[H3C-irf-port2] quit

ps：要保证47和48两个接口是启用状态。

[H3C]save

[H3C]chassis convert mode irf

S7506X-B

<H3C>system-view

[H3C]irf member 2

[H3C]irf-port 1

[H3C-irf-port2] port group interface ten-gigabitethernet 1/0/47

[H3C-irf-port2] port group interface ten-gigabitethernet 1/0/48

[H3C-irf-port1]** quit**

ps：要保证47和48两个接口是启用状态。

[H3C]save

[H3C]chassis convert mode irf

配置BFD MAD检测

<H3C>system-view

[H3C] irf link-delay 0

创建VLAN 99，并将S7506X-A（成员编号为1）上的端口1/5/0/1和S7506X-B（成员编号为2）上的端口2/5/0/1加入VLAN中。

[H3C] vlan 99

[H3C-vlan99] port gigabitethernet 1/5/0/1 gigabitethernet 2/5/0/1

[H3C-vlan99] quit

VLAN接口99界面，并配置MAD IP地址。

[H3C]** interface vlan-interface 99**

[H3C-Vlan-interface99] mad bfd enable

[H3C-Vlan-interface99] mad ip address 192.168.99.1 24 member 1

[H3C-Vlan-interface99] mad ip address 192.168.99.2 24 member 2

[H3C-Vlan-interface99] quit

因为BFD MAD和生成树功能互斥，所以在GigabitEthernet1/5/0/1和GigabitEthernet2/5/0/1上关闭生成树协议。

[H3C] interface gigabitethernet 1/5/0/1

[H3C-gigabitethernet-1/5/0/1] undo stp enable

[H3C-gigabitethernet-1/5/0/1] quit

[H3C]** interface gigabitethernet 2/5/0/1**

[H3C-gigabitethernet-2/5/0/1] undo stp enable

dis irf configuration查看irf配置信息

dis irf link 查看irf信息

dis bfd session 查看bfd情况

dis mad verbose查看mad状态