System and method of traffic inspection and classification for purposes of implementing session ND content control
US8639837B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 27, 2007 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Jan 11, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/22
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Packets received at a network appliance are classified according to a packet classification rules based on flow state information maintained by the network appliance and evaluated for each packet as it is received at the appliance on the basis of OSI Level 2-Level 4 (L2-L4) information retrieved from the packet. The received packets are acted upon according to outcomes of the classification; and the flow state information is updated according to actions taken on the received packets. The updated flow state information is then made available to modules performing additional processing of one or more of the packets at OSI Layer 7 (L7).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.