Method and system for re-establishing context of data packet flows
US7440429B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 30, 2003 |
| Grant date | Oct 21, 2008 |
| Priority date | — |
| Expiry date | Oct 17, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W88/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a system, a Midcom Agent, a method for re-establishing context and a computer program product for performing the steps of said method. In a multi-domain, multi-access IP network there is a need for a method to re-establish context associated with a flow when the end-to-end path changes. The path change is typically due to mobility, but can also be caused by access re-selection (which can be performed for a stationary mobile node as well). Therefore, a method is provided in which the context is moved from one middlebox to at least one selected middlebox via a Midcom Agent. An advantage with the present invention is that it facilitates the transfer of context information from a set of middleboxes to another set of middleboxes. Each set may contain diverse types of such middleboxes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.