Passive network monitoring system
US7483379B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2002 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Apr 3, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L43/16
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network monitoring system (10). The system comprises a database (32) and at least one monitoring circuit (36) coupled to a network (20). Network traffic flows along the network in a form of packets. The at least one monitoring circuit is programmed to perform the steps of receiving a packet communicated along the network and determining whether data in the packet satisfies a rule set. Further, the at least one monitoring circuit is responsive to determining that data in the packet satisfies a rule set by copying information relating to the packet to be stored into the database. The system also comprises circuitry for querying the information communicated by the at least one monitoring circuit to the database to identify an irregularity in the network traffic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.