AES67 Guidelines

When connecting devices to route AES67 audio streams with your E-DANTE 64 card, the following general principles should be noted:

• AES67 uses IEEE1588-2008 Precision Time Protocol (PTP) to ensure synchronization between devices. All networked devices, including your network switch must support this standard.

• You need to disable any Energy Efficient Ethernet (EEE) switches, as these will disrupt the synchronization of audio streams.

• All networked devices need to support multicast routing. The Dante system defaults to multicast when routing AES67 streams.

• Multicast routing uses the Class D range of IP addresses (224.x.x.x – 239.x.x.x). For AES67 streams, chose an IP range that does not conflict with other network traffic. Consult your network administrator if necessary.

• It is recommended that Internet Group Management Protocol (IGMP) snooping is enabled on your network switch. This will avoid the possibility of flooding your network.

• Dante uses Session Announcement Protocol (SAP) to discover devices on a network. If any of your devices do not support SAP, the Dante Controller will not be able to see them. In this case, you must use a SAP conversion tool, such as the free Ravenna-2-SAP converter available from the Ravenna website (https://www.ravenna-network.com/).