Avionics Full-Duplex Switched Ethernet

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] The AFDX data network is based on Ethernet technology using commercial off-the-shelf (COTS) components. The AFDX data network is a specific implementation of ARINC Specification 664 Part 7, a profiled version of an IEEE 802.3 network per parts 1 & 2, which defines how commercial off-the-shelf networking components will be used for future generation Aircraft Data Networks (ADN). The six primary aspects of an AFDX data network include full duplex, redundancy, determinism, high speed performance, switched and profiled network.

^ US patent 6925088, Moreaux, "Data transmission system for aircraft", issued 2005-08-02
^ "AFDX". Office for Harmonization in the Internal Market. Archived from the original on January 11, 2015. Retrieved May 28, 2015.

[1] US patent 6925088, Moreaux, "Data transmission system for aircraft", issued 2005-08-02

[2] "AFDX". Office for Harmonization in the Internal Market. Archived from the original on January 11, 2015. Retrieved May 28, 2015.

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