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A-16
Cisco Nexus 7000 Series Hardware Installation and Reference Guide
OL-23069-06
Appendix A      Technical Specifications
Chassis Airflow
Chassis Airflow
The Cisco Nexus 7000 Series switches use either front-to-back or side-to-side airflow as follows:
 • The Cisco Nexus 7009 switch uses side-to-side airflow to cool it modules and front-to-back airflow 
to cool its power supplies as shown in Table A-14. 
 • The Cisco Nexus 7010 switch uses front-to-back airflow as shown in Figure A-15.
 • The Cisco Nexus 7018 switch uses side-to-side airflow to cool its modules and front-to-back airflow 
to cool its power supply units as shown in Figure A-16. 
All Cisco Nexus 7000 Series switches are designed to work in a hot-aisle/cold-aisle environment, but the 
Cisco Nexus 7018 switch design also requires side clearances to allow airflow in and out the sides. 
Figure A-14 Airflow for the Cisco Nexus 7009 Chassis
1 Airflow for cooling the supervisor modules, 
I/O modules, and fabric modules
2 Airflow for cooling the power supply units.