Extron Electronics Dante Controller - Manual (Page 17)

Dante Controller User Guide
Copyright © 2013 Audinate Pty Ltd. All rights reserved. -17-
If the secondary network is connected to a device that supports redundancy, it is enabled automatically.
Audio data is transmitted on both the primary and secondary networks simultaneously. In the event of a
failure on one network, audio will still continue to be received via the other network.
Note: Dante redundancy requires that both the primary and secondary interfaces on any redundant
device are connected using the same link speed. For example, if the primary interface is connected to
a 1 Gbps switch port, the secondary interface must also be connected to a 1 Gbps switch port.
Similarly, if the primary interface is connected to a 100 Mbps switch port, the secondary interface
must also be connected to a 100 Mbps switch port.
Note: Dante devices that do not support redundancy must be connected to the primary network only.
Dante Controller must be connected to the primary network.
Audio Formats
Different Dante devices may support different audio formats. Most Dante devices support either 48 kHz
24-bit PCM or 96 kHz 24-bit PCM. Some devices can be switched between 48 kHz and 96 kHz, but will
not support both at once.
It is only possible to set up a route between channels which have a common audio format. Channels
having incompatible formats will be shown in grey and will not be routable.
Flows
Dante audio routing creates 'flows'. Each flow carries one or more channels of audio from a transmitting
device to one or more receiving devices. There are two types of flow, unicast and multicast.
Unicast routing creates flows to a single receiving device; a unicast flow typically assigns space for 4
channels of audio. Unicast flows are setup when a receiver subscribes to an available audio channel, and
are automatically removed when the receiver unsubscribes from all channels in that flow.
Multicast routing creates flows that can be received by multiple receivers. Multicast flows are assigned
IDs enabling them to be identified in Dante Controller and to facilitate their removal. In contrast to unicast