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Arrangement in a router of a mobile network for optimizing use of messages carrying reverse routing headers

A mobile network and router technology, applied in the field of mobile network management, can solve problems such as unstable topology, wireless propagation characteristics, and difficult modeling and quantification of signal quality

Inactive Publication Date: 2009-02-11
CISCO TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] MANET systems are particularly well-suited for low-power wireless networks that may exhibit unstable topologies, where wireless propagation characteristics and signal quality between wireless transmission sources and receivers are difficult to model and quantify

Method used

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  • Arrangement in a router of a mobile network for optimizing use of messages carrying reverse routing headers
  • Arrangement in a router of a mobile network for optimizing use of messages carrying reverse routing headers
  • Arrangement in a router of a mobile network for optimizing use of messages carrying reverse routing headers

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Embodiment Construction

[0029] Embodiments of the present disclosure are directed to optimizing the generation and use of IPv6-based reverse routing headers in mobile networks. The basic generation and use was published by the inventors on June 19, 2002 as Internet-Draft "IPv6 Reverse Routing Header and its application to MobileNetworks" (at http: / / www.ietf.org / internet-drafts / draft- This draft is available on the World Wide Web at thubert-nemo-reverse-routing-header-00.txt, the entire disclosure of which is hereby incorporated by reference). The most recent version was published on October 11, 2002 and is available on the World Wide Web at http: / / www.ietf.org / internet-drafts / draft-thubert-nemo-reverse-routing-header-01.txt, The entire disclosure thereof is hereby incorporated by reference.

[0030] The disclosed embodiments optimize the originating mobile router's process of generating a reverse routing header by selecting a plurality of empty address slots for storing the relationship between the ...

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Abstract

The mobile router is configured to optimize use of the reverse routing header to specify a path between the originating mobile router and the home agent. The reverse routing header enables each mobile router in the path to the home agent to specify its care-of address, thereby enabling the home agent to establish a bidirectional tunnel to the originating mobile router via the corresponding mobile router. A mobile router determines by inserting the received packet's source address value into the reverse routing header and its corresponding care-of address into the source address field based on whether the mobile router lacks the following routing table entries: Optionally updating the reverse routing header in the received packet: the routing table entry specifies the reachability of the closest entry in the reverse routing header via the source address value. The mobile router may also request the originating mobile router to increase the size of the reverse routing header.

Description

technical field [0001] The present invention relates to mobile network management using mobile routers, where the mobile network is able to change its point of attachment to a wide area network (eg the Internet), thereby changing the reachability of the mobile network in its associated topology. Background technique [0002] The Internet Engineering Task Force (IETF) group has proposed enhancing mobility support for Internet Protocol (IP)-based mobile devices (e.g., laptops, IP phones, personal digital assistants, etc.) in order to provide continuous Internet Protocol (IP)-based mobile devices. Connection. For example, the IETF has a Mobile IP working group that has developed routing support to allow IP nodes (hosts and routers) to seamlessly "roam" between IP subnets using IPv4 or IPv6. Additionally, the Mobile Networks (MONET) group (renamed the Network Motility (NEMO) group) has published various Internet-Drafts on the Network Mobility homepage at http: / / www.nal.motlabs....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/24H04L12/28H04L29/06
CPCH04W40/30Y10S707/99931H04W40/246H04L29/0653H04W40/32H04L41/00H04L45/00H04L29/06H04W40/02H04L29/06142H04L69/16H04W8/26H04L69/167H04L29/06095H04L29/06102H04L69/161H04L45/36H04L12/24H04W84/005H04W80/04H04L69/22H04W8/082H04L9/40
Inventor 帕斯卡尔·蒂贝尔马尔科·莫尔泰尼帕特里克·韦特瓦尔德戴维·奥尔巴克
Owner CISCO TECH INC