The Endstation requirements as specified in the AVnu Base and Pro AV Functional Interoperability Specification 1.1 focus on ensuring reliable, synchronized, and high-quality transmission of time-sensitive audio and video streams over a network. Below are the key requirements:
Time Synchronization:
IEEE 802.1AS (gPTP): Endstations must implement the generalized Precision Time Protocol to achieve precise time synchronization across the network, essential for aligning audio and video streams.
Stream Reservation Protocol:
IEEE 802.1Qat (MSRP): Devices must support the Multiple Stream Reservation Protocol to reserve network resources, guaranteeing the necessary bandwidth and minimizing latency for time-sensitive streams.
Traffic Shaping and Queuing:
IEEE 802.1Qav (Credit-Based Shaper): Endstations are required to implement traffic shaping mechanisms to manage data flow effectively, ensuring timely delivery and reducing congestion.
Layer 2 Transport Protocol:
IEEE 1722: Must support the transport protocol for encapsulating audio and video data over Ethernet, enabling seamless transmission of media streams.
Device Discovery and Control:
IEEE 1722.1: Should implement protocols for device discovery, connection management, and control, facilitating interoperability and ease of configuration in the network.
VLAN Tagging and Prioritization:
IEEE 802.1Q: Endstations need to support VLAN tagging to segregate network traffic and prioritize time-sensitive data, enhancing network performance and security.
Compliance with AVB System Profiles:
IEEE 802.1BA: Devices must adhere to defined profiles for Audio Video Bridging systems to ensure compatibility and interoperability across different manufacturers' equipment.
Latency and Jitter Requirements:
Endstations must meet specific latency and jitter performance criteria to maintain audio and video quality, ensuring that data streams arrive in a timely and orderly fashion.
Media Format Support:
Must be capable of handling the required audio and video formats as outlined in the specification, enabling support for various professional media applications.
Interoperability Testing:
Devices should undergo interoperability testing to confirm they work seamlessly with other compliant devices, ensuring a robust and unified network environment.
Network Management and Diagnostics:
Should support standard network management protocols for configuration, monitoring, and diagnostics to maintain optimal network performance and facilitate troubleshooting.
Security Measures:
Implement necessary security features to protect against unauthorized access and ensure the integrity of data streams, aligning with best practices for network security.
Scalability:
Designed to function efficiently in networks of varying sizes, from small setups to large-scale deployments, without compromising performance.
Power Management:
Should support efficient power usage and, where applicable, adhere to standards like Energy Efficient Ethernet (IEEE 802.3az) for reduced energy consumption.
By meeting these requirements, endstations ensure high-quality, synchronized audio and video transmission, essential for professional AV applications. Compliance with these standards facilitates interoperability, reliability, and performance across diverse network environments.
The Endstation requirements as specified in the AVnu Base and Pro AV Functional Interoperability Specification 1.1 focus on ensuring reliable, synchronized, and high-quality transmission of time-sensitive audio and video streams over a network. Below are the key requirements:
IEEE 802.1AS (gPTP): Endstations must implement the generalized Precision Time Protocol to achieve precise time synchronization across the network, essential for aligning audio and video streams.
IEEE 802.1Qat (MSRP): Devices must support the Multiple Stream Reservation Protocol to reserve network resources, guaranteeing the necessary bandwidth and minimizing latency for time-sensitive streams.
IEEE 802.1Qav (Credit-Based Shaper): Endstations are required to implement traffic shaping mechanisms to manage data flow effectively, ensuring timely delivery and reducing congestion.
IEEE 1722: Must support the transport protocol for encapsulating audio and video data over Ethernet, enabling seamless transmission of media streams.
IEEE 1722.1: Should implement protocols for device discovery, connection management, and control, facilitating interoperability and ease of configuration in the network.
IEEE 802.1Q: Endstations need to support VLAN tagging to segregate network traffic and prioritize time-sensitive data, enhancing network performance and security.
IEEE 802.1BA: Devices must adhere to defined profiles for Audio Video Bridging systems to ensure compatibility and interoperability across different manufacturers' equipment.
Endstations must meet specific latency and jitter performance criteria to maintain audio and video quality, ensuring that data streams arrive in a timely and orderly fashion.
Must be capable of handling the required audio and video formats as outlined in the specification, enabling support for various professional media applications.
Devices should undergo interoperability testing to confirm they work seamlessly with other compliant devices, ensuring a robust and unified network environment.
Should support standard network management protocols for configuration, monitoring, and diagnostics to maintain optimal network performance and facilitate troubleshooting.
Implement necessary security features to protect against unauthorized access and ensure the integrity of data streams, aligning with best practices for network security.
Designed to function efficiently in networks of varying sizes, from small setups to large-scale deployments, without compromising performance.
Should support efficient power usage and, where applicable, adhere to standards like Energy Efficient Ethernet (IEEE 802.3az) for reduced energy consumption.
By meeting these requirements, endstations ensure high-quality, synchronized audio and video transmission, essential for professional AV applications. Compliance with these standards facilitates interoperability, reliability, and performance across diverse network environments.