Network Redundancy

The Core, and each Q-SYS peripheral device (I/O Frame), has 2 LAN ports: LAN A and LAN B. LAN A is the default, primary port, LAN B the backup or redundant. Each audio peripheral can be configured in Q-SYS Designer to use LAN B as a backup (Is Network Redundant). For each audio peripheral that "Is Network Redundant" (uses LAN B), the Core establishes redundant audio streams to and from that peripheral. These streams are always active, allowing the Core and peripherals to use the audio streams from LAN B if there is a problem with LAN A. If a port, switch, or link is lost, there is no failover time, and no interruption of the audio stream.

The control communication streams, while not necessarily constantly replicated over the two ports, will also failover seamlessly.

Note: The Core only establishes redundant audio and control streams with those peripherals that are configured in Q-SYS Designer as "Is Network Redundant" (using LAN B). This means that those peripherals not configured and physically wired, to use both LAN ports, cannot make use of network redundancy.

There are network configuration and topology considerations to understand when implementing Q-SYS Network Redundancy. Refer to Network Switches & Infrastructure and Addressing & Routing.