Nd Mad - HP 5130 EI series Configuration Manual

Figure 7 ARP MAD application scenario
Master
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
spanning tree protocol between the IRF fabric and the intermediate device.
Customer
premise
network
STP domain (all devices
Device
IRF
IRF link
Internet
Common traffic path
Extended ARP traffic path
Figure
must run the spanning
tree feature)
Subordinate
8). If an intermediate device is used, you must also run the
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