The requirements listed in this document aim at specifyinginteroperable functional elements:
• Data link: MAC, VL addressing concept
• Network: IP, ICMP
• Transport: UDP, TCP (optional)
• Network application layers: Sampling, Queuing, SAP, TFTP, andSNMP
This document will be limited to the description of thenormative protocols listed above.
COMMENTARY
System designers may add other protocols on a case-by-case basis(example FTP at network application layer), but there is norequirement for an AFDX compliant LRU to implement this additionalprotocol.
Physical layer is not specified here, but should be any of theARINC Specification 664, Part 2, defined solutions.
This means that any AFDX compliant LRU (including switch) can beconnected to any AFDX network, as far as the Form and Fitrequirements (specific to the System and not specified in thisdocument) are respected.
Purpose of Document
The purpose of this document is to define a deterministicnetwork: Avionics Full Duplex Switched Ethernet (AFDX™). AFDX™ is atrademark of Airbus and is used with permission. This document alsohighlights the additional performance requirements of avionicssystems, within the context of AFDX.
This specification allows:
• System integrators to design flight critical systems usingAFDX
• Equipment designers to specify equipment interoperable withAFDX
- Edition:
- 09
- Published:
- 09/23/2009
- Number of Pages:
- 150
- File Size:
- 1 file , 1.7 MB
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