When a backup router becomes a master VRRP router, VRRP sets a flag on all the virtual IP addresses associated with the master router and therefore the virtual IP addresses are protected. If there are no conflicts for the virtual IP addresses, several gratuitous ARP and neighbor advertisement messages are sent to advertise the new mapping between the virtual IP address and the MAC address of the new master.
To control the number of messages sent and the interval between the advertisement of messages, you can use the following IP protocol properties:
arp_publish_count
arp_publish_interval
ndp_unsolicit_count
ndp_unsolicit_interval
For more information about the IP protocol properties, see IP Tunable Parameters Related to Duplicate Address Detection in Oracle Solaris 11.2 Tunable Parameters Reference Manual .