Parallel intrusion detection sensors with load balancing for high speed networks
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United States of America Patent
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Jun 10, 2003
Grant Date -
N/A
app pub date -
Jan 15, 1999
filing date -
Jan 15, 1999
priority date (Note) -
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Abstract
Various embodiments of a method and system for detecting unauthorized signatures to or from a local network. Multiple sensors are connected at an internetworking device, which can be a router or a switch. The sensors operate in parallel and each receives a portion of traffic through the internetworking device, at a session-based level or at a lower (packet-based) level. Depending on the type of internetworking device (router or switch) the load balancing mechanism that distributes the packets can be internal or external to the internetworking device. Also depending on the level of packet distribution (session-based or packet-based), the sensors share a network analyzer (if session-based) or both a network analyzer and a session analyzer (if packet-based).
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