Tomcat Http11NioProtocol how to enable

I"m writing an app that needs/uses Comet, having read the basic tomcat tutorials and various other things i need to add this to my server.xml

HTML Code:

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<Connector connectionTimeout="20000" port="8080" protocol="org.apache.coyote.http11.Http11NioProtocol" redirectPort="8443"/>

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in order to take advantage of the basic comet functionality. This i can do locally, but i was wondering how I would deploy this change, or its equivalent to the foundry stack?

Cheers