We can confirm that latest Ethernet channel evolution's have brought FDR service improvements.
With todays fw versions :
ATV6xx: version 2.2ie24 (internally, the embedded Ethernet firmware version must be 1.Die15)
ATV9xx: version 1.8ie14 (internally, the embedded Ethernet firmware version must be 1.Die15)
Eth.card VW3A3720: version 1.Die15
or any newer version, the FDR will work towards equal or newer fw version.
Example1: today ATV2.2IE24 is used and after one year it will be replaced by ATV with newer fw (e.g. 2.3IExx). Result is that FDR OK
Example2 : ATV1.9IE24 has been used and now it is going to be replaced by ATV 2.2IE24. Result is that FDR is not OK.
With todays fw versions :
ATV6xx: version 2.2ie24 (internally, the embedded Ethernet firmware version must be 1.Die15)
ATV9xx: version 1.8ie14 (internally, the embedded Ethernet firmware version must be 1.Die15)
Eth.card VW3A3720: version 1.Die15
or any newer version, the FDR will work towards equal or newer fw version.
Example1: today ATV2.2IE24 is used and after one year it will be replaced by ATV with newer fw (e.g. 2.3IExx). Result is that FDR OK
Example2 : ATV1.9IE24 has been used and now it is going to be replaced by ATV 2.2IE24. Result is that FDR is not OK.