AFDX

Question 1

properties of AFDX

Answer 1

• done through switches
• bidirectional
• asynchronous (send info when need to)
• bandwidth limited to avoid jamming
• switches control and regulate

Question 2

hwo is AFDX different from regular ethernet

Answer 2

• two cable between each (cable is a quadrax) -> redundancy management
• deterministic (though jitter bc asnchronous)
• end to end integrity through CRC checking
• logical separation of bandwidth -virtual link concept
• guarenteed usable bandwidth (traffic shaping in switches-> sequencing))
• deterministic network config (static routing configuration)

Question 3

what two things contribute to the data rate of the virtual link concept

Answer 3

BAG (band allocation gap) -> time
Frame size (# bits)

Question 4

where is virtual link ID found?

Answer 4

in MAC address and IP address destinations