Content-addressable memory based enforcement of configurable policies
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United States of America Patent
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May 6, 2014
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app pub date -
Aug 25, 2009
filing date -
Aug 25, 2009
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Abstract
A monitoring device for monitoring transactions on a bus includes content-addressable memory (“CAM”) and a response policy unit. The CAM includes an input coupled to receive a bus transaction tag based on bus traffic on the bus. The CAM stores data tags associated with rules of a security policy to compare the bus transaction tag to the data tags. The CAM generates an output signal indicating whether one or more matches occurred. The response policy unit is coupled to the CAM to receive the output signal from the CAM and to execute a policy action in response to the output signal.
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