06578147 is referenced by 209 patents.

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).

Title
Parallel intrusion detection sensors with load balancing for high speed networks
Application Number
9/232276
Publication Number
6578147 (B1)
Application Date
January 15, 1999
Publication Date
June 10, 2003
Inventor
Gerald S Lathem
Elgin
TX, US
Steven D Shanklin
Austin
TX, US
Agent
Baker Botts L
US
Assignee
Cisco Technology
CA, US
IPC
H04L 12/00
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