The MultiNICB agent works with the IPMultiNICB agent. It allows IP addresses to fail over to multiple interfaces on the same system before VCS tries to fail over to another system. You can use the agent to make IP addresses on multiple-adapter systems highly available or to monitor them.

When you use the MultiNICB agent, you must configure the interfaces before putting them under the agent's control. You must configure all the interfaces in a single MultiNICB resource with the base IP addresses that are in the same subnet.

You need to set the MONITOR flag for each interface that the agent controls. Use the ifconfig command to set the flag. For example:

# ifconfig en0 monitor