air flow in cisco catalyst 4500-x.

[almarzuki20011]

Hi,

We are planning to buy cisco catalyst 4500-x 8 port sfp+. But we are confusing about  Front-to-Back Airflow and Back-to-Front Airflow.

I know that Front-to-Back Airflow give warm air and Back-to-Front Airflow give cool air. But what the different, why this is giving they can stack to one air flow.

Thanks and regards