Automatic identification of application protocols through dynamic mapping of application-port associations
US6182146A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 27, 1997 |
| Grant date | Jan 30, 2001 |
| Priority date | — |
| Expiry date | Jun 27, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L61/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A system, method, and software product dynamically determine network applications associated with any ports being used by packets on a network, allowing the packets to be properly routed, counted, and reported according to their applications. In one embodiment, an application-port mapping table stores static associations or mappings between applications and ports, as defined by a standards body or other source. The application-port mapping table is dynamically updated during runtime to reflect dynamic associations between applications and ports as extracted from packet data. The associations are identified by a packet analysis module which performs a two step verification of an application for a packet. In a first step, the packet analysis module applies the ports from a packet to the application-port mapping table to obtain a first application identifier. In a second, separate step, the packet analysis module applies identification logic to the packet to identify an application based on packet data. The second step may be used for each packet or only where the packet is not identified by the application-port mapping table. If a second application is successfully identified, the pa…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.