On Tue, Sep 22, 2009 at 2:07 PM, Matthew White <[email protected]> wrote:

> The policy polices HULU and PANDORA, counters don't increment for YOUTUBE 
> (and doesn't get policed) and after 3 or 4 minutes ALL web traffic is 
> policed. Has anyone seen this behavior before?

Counters not incrementing for Youtube might be easy, browsers are
redirected to a different site and end up streaming from s.ytimg.com
as an example.

As for the rest, Petr Lapukhov posted a brief article at
http://blog.internetworkexpert.com/2008/11/04/using-nbar-for-http-url-filtering/
and one of the last things he mentions is "NBAR engine is buggy :)
Sometimes you may found your class matches much more traffic than you
wanted and drops really important packets. Ooops! This happens all the
times."

-- 
Jon
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