Avionics Full-Duplex Switched Ethernet (AFDX), also ARINC 664, is a data network, patented by international aircraft manufacturer Airbus, [1] for safety-critical applications that utilizes dedicated bandwidth while providing deterministic quality of service (QoS). AFDX is a worldwide registered trademark by Airbus. [2]

AFDX® Overview. ARINC 664P7 standard adopts the key elements from AFDX® to standardize a deterministic network for aircraft. AFDX® is used on the Airbus A380 as main Avionics databus and on the A400M; AFDX® is based on IEEE 802.3 Standard (commercial Ethernet using Wire) with either 10Mbits/s or 100Mbits/s

航空电子全双工交换式以太网（英语：Avionics Full-Duplex Switched Ethernet，缩写：AFDX）是一种用于航空电子领域的数据网络协议，基于安全、可靠性、兼容性出发的数据网络，由空中巴士持有相关专利 [1] 。并广泛应用于空客制造的航空器中。

Both Boeing and Airbus have explored commercial Ethernet technology to build a next-generation avionics data bus. This research has resulted in the development of Avionics Full-Duplex Switched Ethernet (AFDX), based upon IEEE 803.2 Ethernet technology, but adding specific functionality to provide a deterministic network with guaranteed service.

Ethernet (AFDX) AFDX is based on Ethernet IEEE 802.3 specific implementation of ARINC 664 (Deterministic Ethernet avionic data bus)9. AFDX was first designed by Airbus for their aircraft. It uses cascaded star topology to reduce wire runs and weight and provides dual-link redundancy and QoS. AFDX uses parts of the MIL-STD-1553 terminology and

Avionics Full-Duplex Switched Ethernet (AFDX) is a data network, for safety-critical applications that utilizes dedicated bandwidth while providing deterministic quality of service (QoS). AFDX is required because High Speed Commercial Ethernet with provisions for guaranteed deterministic timing and redundancy is needed for Aviation applications.

2007年10月1日 · This technical report touches briefly on the history of AFDX, which is the recent replacement technology for ARINC 429, and provides an overview of the architecture of this new bus structure....

The simulation effectively verifies the determinism and reliability of the AFDX network, and provides a strong prerequisite for the FPGA prototyping of the AFDX network end-system, which provides a reliable guarantee for reproducing the post-silicon problem and the end-system's successful chip flow.

2025年2月27日 · This paper summarizes and analyzes the working mechanism of the AFDX bus at a deep level by deeply analyzing the mapping relationship between AFDX and OSI model, starting from the basic principle of data communication, and gives a development example through engineering application, which provides a reference for the design of AFDX bus for ...

2009年3月25日 · AFDX addresses quality of service, determinism, and reliability required in an aircraft environment, and at the same time provides the advantages in wiring bundles and the communication bandwidth, increasing network capability, and supporting deterministic requirement of the airborne system and certification guidelines system.