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<DeviceB> system-view
[DeviceB] interface ten-gigabitethernet 2/0/26
[DeviceB-Ten-GigabitEthernet2/0/26] shutdown
[DeviceB-Ten-GigabitEthernet2/0/26] quit
[DeviceB] irf-port 2/1
[DeviceB-irf-port2/1] port group interface ten-gigabitethernet 2/0/26
[DeviceB-irf-port2/1] quit
[DeviceB] interface ten-gigabitethernet 2/0/26
[DeviceB-Ten-GigabitEthernet2/0/26] undo shutdown
[DeviceB-Ten-GigabitEthernet2/0/26] save
# Activate IRF port configuration on Device A.
[DeviceA-Ten-GigabitEthernet1/0/25] quit
[DeviceA] irf-port-configuration active
# Activate IRF port configuration on Device B.
[DeviceB-Ten-GigabitEthernet2/0/26] quit
[DeviceB] irf-port-configuration active
After the IRF port configuration is activated, the two devices automatically elect a master. In this
example, Device A is the master. Device B automatically reboots and joins the Device A as a
subordinate switch to form an IRF fabric. The system name of the IRF fabric is DevcieA.
4. Configure BFD MAD:
# Create VLAN 3, and add port GigabitEthernet 1/0/1 on Device A (member ID 1) and port
GigabitEthernet 2/0/1 on Device B (member ID 2) to VLAN 3.
<DeviceA> system-view
[DeviceA] vlan 3
[DeviceA-vlan3] port gigabitethernet 1/0/1 gigabitethernet 2/0/1
[DeviceA-vlan3] quit
# Create VLAN-interface 3 and configure a MAD IP address for each member device on the
interface.
[DeviceA] interface vlan-interface 3
[DeviceA-Vlan-interface3] mad bfd enable
[DeviceA-Vlan-interface3] mad ip address 192.168.2.1 24 member 1
[DeviceA-Vlan-interface3] mad ip address 192.168.2.2 24 member 2
[DeviceA-Vlan-interface3] quit
# Connect the BFD MAD links as shown in Figure 14.
# Disable the spanning tree feature on GigabitEthernet 1/0/1 and GigabitEthernet 2/0/1.
[DeviceA] interface range gigabitethernet 1/0/1 gigabitethernet 2/0/1
[DeviceA-if-range] undo stp enable
[DeviceA-if-range] quit
ARP MAD-enabled IRF configuration example
Network requirements
As shown in Figure 15, set up an IRF fabric in the enterprise network.
Configure ARP MAD in the IRF fabric and use the links connected to Device C for transmitting ARP
MAD packets.
To prevent loops, run the spanning tree feature between Device C and the IRF fabric.
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