Active packet content analyzer for communications network
US7499412B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2005 |
| Grant date | Mar 3, 2009 |
| Priority date | — |
| Expiry date | Apr 23, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0245
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An active packet inspection device for a communications network, comprises a first terminal and a second terminal each adapted to couple the appliance in-line in the network and communicate data packets with network devices. A packet processor is coupled to the first terminal and second terminal and configured to normalize the data packets. A network search engine coupled to the packet processor and the memory, and configured to compare the data packets with the stored signatures, and when a match is found and other specified conditions are met, to perform an action identified in an associated rule. In one aspect, the network search engine includes a network search engine controller and a network search engine table including a memory configured to store a plurality of replicated signatures. Advantages of the invention include the ability to perform deep packet inspections actively on a communications network at high-speed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.