Local Area Networks (LANs) in Aircraft - FTP Directory Listing - FAA
Local Area Networks (LANs) in Aircraft - FTP Directory Listing - FAA
Local Area Networks (LANs) in Aircraft - FTP Directory Listing - FAA
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Other Air or<br />
Ground Entity<br />
<strong>Aircraft</strong> Control<br />
<strong>Aircraft</strong><br />
Human<br />
1<br />
Level D S/W SW<br />
Level B S/W SW<br />
Level A S/W SW<br />
Human<br />
N<br />
Virtual Private Network<br />
Air-to-Ground<br />
Comms<br />
Firewall<br />
Level D S/W SW<br />
Level B SW S/W<br />
Level A S/W SW<br />
Passenger Network<br />
Passenger<br />
1<br />
Passenger<br />
2<br />
Level D S/W SW<br />
Level C S/W SW Virtual Private Network<br />
Level C S/W SW Level C S/W SW<br />
Encapsulation Sys<br />
Physical Network<br />
This figure does not<br />
show how the VPN<br />
encapsulation<br />
(and decapsulation) is<br />
accomplished.<br />
Virtual Private Network<br />
Virtual Private Network<br />
Level B SW S/W<br />
Level A S/W SW<br />
Encapsulation System<br />
High-Assurance LAN<br />
Packet Filter<br />
High-Assurance LAN<br />
Passenger<br />
N<br />
Cockpit (Pilot) Network<br />
Crew<br />
1<br />
Crew<br />
N<br />
High-Assurance LAN<br />
Non-Cockpit Noncockpit Crew Crew<br />
Network<br />
High-Assurance LAN<br />
Crew<br />
1<br />
Crew<br />
N<br />
SW = Software<br />
Figure 30. Secure Generic Airborne Network Design (High-Level View)<br />
106
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