You can set the Failover Latency in milliseconds. This is the time that a Passive ADC will wait before taking over the Virtual Services after the Active ADC has failed.
We recommend setting this to 10000ms or 10 seconds, but you may decrease or increase this value to suit your network and requirements. Acceptable values fall between 1500ms and 20000ms. If you experience instability in the cluster at a lower latency, you should increase this value.
Failover Messaging
By default, the ADC uses Broadcast for its failover messaging. However, some networks block broadcast and so we have provided Unicast and Hybrid, a mix of Unicast and Broadcast.
When running in default Broadcast mode unclaimed devices will be automatically listed and broadcast messages will be used for failover. When running in Hybrid mode unclaimed devices will still advertise over Broadcast but failover communication will be over Unicast. Unicast mode will not broadcast as such you, and you may need to manually enter the cluster members.
