32# Assign domain ID 1 to the IRF fabric. system-view[Sysname] irf domain 1# Create a dynamic aggregate interface and enable LACP MAD.[Sysname] interface route-aggregation 2[Sysname-Route-Aggregation2] link-aggregation mode dynamic[Sysname-Route-Aggregation2] mad enableYou need to assign a domain ID (range: 0-4294967295)[Current domain is: 1]:The assigned domain ID is: 1MAD LACP only enable on dynamic aggregation interface.[Sysname-Route-Aggregation2] quit# Assign GigabitEthernet 1/4/0/2 and GigabitEthernet 2/4/0/2 to the aggregate interface.[Sysname] interface gigabitethernet 1/4/0/2[Sysname-GigabitEthernet1/4/0/2] port link-aggregation group 2[Sysname-GigabitEthernet1/4/0/2] quit[Sysname] interface gigabitethernet 2/4/0/2[Sysname-GigabitEthernet2/4/0/2] port link-aggregation group 24. Configure Device C as the intermediate device:CAUTION:If the intermediate device is also an IRF fabric, assign the two IRF fabrics different domain IDs forcorrect split detection. False detection causes IRF split.# Create a dynamic aggregate interface. system-view[Sysname] interface route-aggregation 2[Sysname-Route-Aggregation2] link-aggregation mode dynamic[Sysname-Route-Aggregation2] quit# Assign GigabitEthernet 4/0/1 and GigabitEthernet 4/0/2 to the aggregate interface.[Sysname] interface gigabitethernet 4/0/1[Sysname-GigabitEthernet4/0/1] port link-aggregation group 2[Sysname-GigabitEthernet4/0/1] quit[Sysname] interface gigabitethernet 4/0/2[Sysname-GigabitEthernet4/0/2] port link-aggregation group 2BFD MAD-enabled IRF configuration exampleNetwork requirementsAs shown in Figure 14, set up an IRF fabric at the distribution layer of the network.• Configure BFD MAD in the IRF fabric and set up BFD MAD links between the member devices.• Assign the highest member priority to Device A so it can be elected the master.
