DDoS Detection with netflow?

Has anyone run across any DDoS/anomoly detection applications that are based on netflow, preferable v9? I ran across a really old application called Panoptis, but it does not appear to have any recent development. Does anyone have any experience with this product or anything similar?

Thomas Magill
Network Engineer
Office: (858) 909-3777
Cell: (858) 869-9685
tmagill@providecommerce.com<mailto:tmagill@providecommerce.com>

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San Diego, CA 92121

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