[CentOS] Running a local mirror of centos?

Now that we have 28 centos boxes up and running, we really want to minimize
the up2date traffic.

Is there a how to on mirroring centos?

We are using

 rsync -azHv --delete-excluded --delete rsync://mirrors.kernel.org/centos/
--exclude-from=centos.excludes --bwlimit=64 --progress centos/

But then what?

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- Jason Pyeron                      PD Inc. http://www.pdinc.us -
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