Some Dante devices support network redundancy. A redundant setup sends two copies of all of the Dante information (audio, clock data, control messages etc) across two separate networks, with the idea being that if one network goes down for any reason (e.g. due to a broken cable or power outage) then audio will not stop flowing through the system.
Devices that support redundancy have two Dante ports instead of one and may also feature two power inlets for power redundancy as well.
An example of a redundant network is shown below:
If a cable is unplugged on the Primary side of the network then audio will still reach the destination via the Secondary network:
The ability for devices to be detected by Dante Controller/RedNet Control at a time when either the Primary or Secondary networks have failed depends on which network the computer in question is connected to. If the computer has two network ports, it can be connected to both.