AEQ Audio Over IP
Routing System
12
Unicast routing: Unicast flows are point-to-point from a single transmitter to a single receiver.
Unicast flows typically have room for 4 channels of audio.
Multicast routing: Multicast flows are one-to-many from a single transmitter to any number of
receivers. Use "Dante Controller" to choose which channels are to be multicast. Unlike unicast
routing, multicast flows consume network bandwidth even if there are no receivers, but do not
require additional bandwidth to add more receivers.
Subscription: A subscription configures a receive channel (Rx) to receive audio from a transmit
channel (Tx) on another Dante device.
Subscription status: For a receive channel, subscription status indicates whether it is
subscribed, whether it is receiving unicast or multicast audio, whether the subscription is OK, or
whether an error has occurred.
Subscription.
Dante routing is performed by associating a receiving (Rx) channel with a transmitting (Tx)
channel. This is called subscription.
Example: Route Tx channels 1 and 2 (labelled "Audio L" and "Audio R") on the device labelled
"Source" to Rx channels 3 and 4 on the device labelled "Dest".
Rx channels 3 and 4 on "Dest" are subscribed as follows:
• 3. Audio L@Source
• 4. Audio R@Source
Dante will perform the necessary audio routing to deliver the audio from the Tx channels to the
Rx channels.
Redundancy.
Many Dante devices support redundant audio routing. These devices have two network
interfaces, labelled primary and secondary. Primary interfaces should be connected to one
physical network.
IMPORTANT NOTE: If redundancy is being used, secondary interfaces should be connected to
a second separated network. Secondary interfaces cannot communicate with primary
interfaces.
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