AIR trought 10Gb NBU Appliance ports

Hello Experts I hope you are fine

I need to configure a 5230 appliance to use one of the 10Gb port for AIR, my backups are comming to the apppliance using eth2 and SAN ports but I want the replication in AIR to use the 10Gb port

Hoq can I do that? I looked at the guides but I didin´t find the solution

Many thanks for your help