HP 6125G HP 6125G & 6125G/XG Blade Switches IRF Configuration Guide-R2 - Page 14

ARP MAD application scenario, If the domain IDs are the same

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Figure 7 ARP MAD application scenario Each IRF member compares the domain ID and the active ID in incoming extended gratuitous ARP packets with its domain ID and active ID: • If the domain IDs are different, the extended gratuitous ARP packet is from a different IRF fabric, and 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. 10

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10
Figure 7
ARP MAD application scenario
Each IRF member compares the domain ID and the active ID in incoming extended gratuitous ARP
packets with its domain ID and active ID:
•
If the domain IDs are different, the extended gratuitous ARP packet is from a different IRF fabric, and
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.