Method and system for re-establishing context of data packet...

Details Method and system for re-establishing context of data packet... Method and system for re-establishing context of data packet...

2003-12-30

2008-10-21

Ly, Nghi H (Department: 2617)

Multiplex communications

Communication over free space

Having a plurality of contiguous regions served by...

C455S436000, C455S442000

Reexamination Certificate

active

07440429

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.

REFERENCES:
patent: 7356595 (2008-04-01), Soininen et al.
patent: 03/052962 (2003-06-01), None
patent: 03/091900 (2003-11-01), None
Kempf, ed.,Problem Description: Reasons for Performing Context Transfers Between Nodes in an IP Access Network, Network Working Group, Request for Comments: 3374, Sep. 2002, 13 pages.

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