Specifying unicast addresses for failover
When specifying unicast, rather than multicast, addresses for failover, you
need to specify two pairs of IP addresses, where one of the pairs indicates
the management IP addresses of the two units. The other pair indicates two
self IP addresses, one for VLAN HA on each unit.
Why is that , if the idea is just to let each unit sense the other , why to use management Ips , it was sufficient to use Vlan HA IPs ?
i mean :
one of them ( the HA vlan ) was sufficient , why to put management Ips ?