Embedded filtering policy manager using system-on-chip
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United States of America Patent
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Issued Date -
Mar 25, 2004
app pub date -
Sep 23, 2002
filing date -
Sep 23, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A packet filter for filtering data packets in a communications network is described. The packet filter has input and output ports for receiving and transmitting respective data packets. A data filter selectively passes packets from the input port to the output port in accordance with filtering policies. A policy manager determines filtering policies and controls operation of the data filter. The policy manager is independent of its implementation and not related to any particular operating system. This independence allows for a generic path of managing policies across devices implementing a system and for more flexibility in the implementation of packet filters. Flexibility may be enhanced by implementing the policy manager in system-on-chip technology.
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