Nd Mad - HP FlexFabric 12500 Series Configuration Manual

Figure 9 ARP MAD application scenario
Each IRF member compares the domain ID and the active ID in incoming extended ARP packets with its
domain ID and active ID:
If the domain IDs are different, the extended ARP packet is from a different IRF fabric. The device
•
does not continue to process the packet with the MAD mechanism.
• If the domain IDs are the same, the device compares the active IDs:
If the active IDs are different, the IRF fabric has split.
If the active IDs are the same, the IRF fabric is integrated.

ND MAD

ND MAD detects multi-active collisions by using the ND protocol's NS packets to transmit the IRF domain
ID and the active ID.
You can set up ND MAD links between neighbor IRF member devices, or between each IRF member
device and an intermediate device (see
the spanning tree protocol between the IRF fabric and the intermediate device.
Figure 10). If an intermediate device is used, you must also run
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