Conclusion; For More Information - Cisco Nexus 2000 Series Product White Paper

Conclusion

The airflow sleeve provides a solution to airflow sealing in the Data Centre.
Also, when the temperature threshold for the FEX are close or crossed due to warmer data center deployment, the
airflow sleeve and the airflow vent provide a solution to reduce the temperature at the intakes respectively in either
front-to-back or back-to-front airflows.

For More Information

http://www.cisco.com/go/nexus2000
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C11-670244-00 05/11
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