Could somebody inform what does this mean , and how could it possible for the the CPU utilization to be more than 100% .
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%PIX-3-211003: CPU utilization for time seconds = %cpu_usage
Explanation This message is displayed if the percentage of CPU usage is greater than 100% for time seconds.
Action If this message occurs frequently, contact Customer Support.
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You can find this description on this link
http://www.cisco.com/univercd/cc/td/doc/product/iaabu/pix/pix_60/syslog/pixemsgs.htm
Thanks