This article provides integration information for using HDA Audio with Network VLAN Settings used in routers and managed network switches.
URC HDA devices use “AVB” (Audio Video Bridging) to share audio streams among other HDA products on a network.
System:
- Multiple HDA amplifiers or HDA-IO units
- One or more HDA-SW5 or third-party AVB switches
- Network using multiple VLANs within a router or a managed network switch
(Must be using multiple HDA units and at least one AVB switch)
Problem:
- Intermittent distorted HDA audio streams
- HDA audio stream dropouts
- Missing HDA audio streams
Possible Fix:
If the router or managed network switch is using “VLAN 2” for non-URC devices on the network, move those devices to a different VLAN number within the router or managed network switches. Do not use “VLAN 2” in the router or managed network switches.
Synopsis:
When using multiple HDA Audio amplifiers and adapters in a system that requires one or more HDA-SW5 switches (or third-party AVB switches), “VLAN 2” should not be used in the system’s router or managed network switch.
VLAN 2 is reserved for the VLAN that is created when using one or more HDA-SW5 units or third-party AVB switches.
An AVB switch creates a VLAN for the AVB streams within the network. The AVB streams created may be affected by traffic created by a router or managed network switch that is also set to use “VLAN 2”.
Important Note: A URC HDA-SW5 switch or suitable third-party AVB switch is still required and needs to be included in the system.
The alert here is so that you do not also use VLAN 2 for other purposes while HDA devices are present in a multiple-VLAN network topology.
If VLANS or other complex networking methods are required, please contact your regional URC Sales Engineer to consult on potential resolutions.
Additional Information & Resources:
A good resource that explains IGMP Snooping can be found by clicking this link.
A good resource that explains AVB can be found by clicking this link.
To learn more about HDA products and programming, please see the HDA Programmers Guide or the Accelerator 3 online Programming Guide.
