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Routing optimization proxy in IP networks

An IP network and optimization technology, applied in the direction of network data management, wireless network protocol, data exchange through path configuration, etc., can solve the problems of not finding an effective system for mobile nodes, time-consuming, non-optimization, etc.

Inactive Publication Date: 2009-07-29
NOKIA TECH OY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this approach has non-optimal routing since packets may have to travel through long, time-consuming detours through home proxies
Those skilled in the art have not found an efficient system that enables a mobile node to communicate with a counterpart node without redundant routing

Method used

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  • Routing optimization proxy in IP networks
  • Routing optimization proxy in IP networks
  • Routing optimization proxy in IP networks

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Embodiment Construction

[0010] Exemplary embodiments of the present invention will be described in detail below with reference to the accompanying drawings, which constitute a part of the description and represent the accompanying drawings by way of illustration, and the present invention can implement specific exemplary embodiments of the accompanying drawings. Each embodiment is described in sufficient detail to enable those skilled in the art to practice the invention, and it is to be understood that other embodiments may be utilized and other changes may be made without departing from the spirit and scope of the invention. Accordingly, the following detailed description is not intended to be limiting, and the scope of the present invention is defined only by the claims.

[0011] In the specification and claims, the following terms expressly have the meanings associated therewith, unless the context clearly dictates otherwise.

[0012] The term "IP" refers to any type of Internet Protocol.

[001...

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Abstract

A system and method provides a routing optimization proxy in an IP network. A secure association is established between a corresponding node and the routing optimization proxy. An authentication procedure is performed for binding updates between the mobile node and the corresponding node. Packets from the corresponding node to the mobile node are addressed by the routing optimization proxy. Routes taken by the packets may be optimized.

Description

Background technique [0001] In conventional IP networks, packets destined for a roaming mobile node cannot arrive while the node is not in its home link. In order to continue communicating regardless of node movement, a node should change its IP address every time it moves to a new link. Currently, one possible technique for a mobile node to communicate with other nodes (corresponding nodes) in the network while roaming is to use a home agent. Using this technique, the correspondent node does not need to know the actual address of the mobile node. Instead, the correspondent node is able to communicate with the mobile node through its home agent and home address. The home agent then forwards traffic back and forth between the corresponding node and the mobile node. However, this approach has non-optimal routing since the packet may have to travel through a long, time-consuming detour through the home proxy. Those skilled in the art have not found an efficient system that en...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/28H04L29/06
CPCH04L63/164H04L63/08H04W80/04H04W88/182H04W8/082H04W12/06
Inventor 锡德里克·韦斯特法尔
Owner NOKIA TECH OY