To define an IP address failover policy, you must have a license for SmartConnect Advanced, and the IP address allocation policy must be set to dynamic. Dynamic IP allocation ensures that all of the IP addresses in the pool are assigned to available network interfaces.
When a network interface becomes unavailable, the IP addresses that were assigned to it are redistributed to available network interfaces according to the IP address failover policy. Subsequent client connections are directed to the new network interfaces.
You can select one of the following connection balancing methods to determine how the IP address failover policy selects which network interface receives a redistributed IP address:
- Connection count
- Network throughput
- CPU usage