Integrate Ethernet AVB into GDP

Ethernet Audio Video Bridging (Ethernet AVB, eAVB) comprises of a set of standards defined by IEEE for distributing and routing time-based media over Ethernet:

• IEEE 802.1BA - Audio Video Bridging
• IEEE 802.1AS - Timing and Synchronization
• IEEE 802.1Qat - Stream Reservation Protocol (SRP)
• IEEE 802.1Qav - Forwarding and Queuing for Time-Sensitive Streams (FQTSS)

The above protocols define the Layer 1 protocols of the stack. They are fully defined on top of full-duplex wired Ethernet as specified by IEEE 802.3, however, for full-duplex switched networks only. Older shared networks using CSMA/CD with hubs are not supported.

Currently, eAVB support for wireless networks according to the standards specified by [IEEE 802.11\http://www.ieee802.org/11] is limited to IEEE 802.1AS.

Layer 2 standards for media encapsulation, packaging and transport for streaming are defined by IEEE 1422. This standard is accompanied by IEEE 1722.1 describing protocols for device discovery, connection management and control. The Avnu Alliance has created an ecosystem for interoperability of eAVB devices based on these standards. The alliance also provides on open source project for implementation of these standards.

The purpose of the effort outlined here is to add eAVB support with a set of use cases to GDP-supported hardware platforms that provide the necessary Layer 1 functionality.