UniInt failover scenarios

UniInt failover can be triggered in multiple scenarios. The following topics describe different causes of failover in UniInt interfaces version 4.6 or later.

For each failover pair, assume that IF-Node1 is the first interface instance to start. IF-Node1 assumes the primary interface instance role and writes data to Data Archive. IF-Node2 is the interface instance that acts as backup and queues data. During failover transitions, the interface instances will change state, as described in the following failover scenarios.