Information center network mobility management method based on content popularity

An information center network and management method technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as server burden, failure to consider routing aggregation and convergence, and FIB table entries are too large to avoid communication interruptions Effect

Inactive Publication Date: 2014-02-12
BEIJING JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this solution reduces the path update overhead and switching delay, because the content name is always kept unchanged during the content source switching process

Method used

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  • Information center network mobility management method based on content popularity
  • Information center network mobility management method based on content popularity
  • Information center network mobility management method based on content popularity

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Embodiment Construction

[0048] The present invention will be further described below in conjunction with the accompanying drawings and examples.

[0049] A mobility management method for information-centric networks based on content popularity,

[0050] The present invention mainly solves the following problems:

[0051] Proxy nodes are deployed in the network, responsible for receiving and processing the pre-switching signaling of the content source, caching the Interest message during the switching process, and responsible for the replacement of the new location name and the original location name of the content source.

[0052] Define the popularity threshold, calculate the threshold K according to the popularity of the requested content, and decide to solve the mobility problem of content sources based on proxy nodes or network caching.

[0053] Define three handover signalings: "handover notification", "handover confirmation" and "handover completion".

[0054] The technical scheme provided by...

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Abstract

The invention discloses an information center network mobility management method based on content popularity and belongs to the technical field of next-generation internet technology research. The method includes the steps that, a requester side moves, specifically, the content requester sends an Interest package request, a router in a network receives the Interest message, the local cache is searched first, the Interest message is directly returned to the requester if the content exists in the local cache, and otherwise a PIT table is searched; a proxy node compares the popularity of the content with a popularity threshold value K; a content source moves to a new position and sends a 'handoff completion' message to the proxy node, wherein it is indicated that handoff is completed if an M marking position is '2', and a K marking position is 'NULL'. According to the method, the mobility of mobile nodes in the content center network is achieved, and the mobility management method based on the proxy node and the web cache avoids communication outage caused by single-fault nodes and link failure; once the proxy node fails and can not serve any more, the network can automatically carry out handoff in a web cache mode, and therefore it is guaranteed that communications are conducted normally.

Description

technical field [0001] The invention relates to a mobility management method for an information center network based on content popularity, and belongs to the technical field of next-generation Internet technology research. Background technique [0002] Research on the next generation Internet is in full swing and enthusiastically going on. The current Internet is facing unprecedented technical and non-technical challenges, and it is difficult to meet the needs of content distribution, mobility, security and other aspects. From a technical perspective, the Internet was designed 40 years ago with simple design principles. The hourglass model of the IP network is difficult to modify. New functions are added through continuous patching and overlay network methods, and incremental changes are difficult to support growing content distribution. , mobility, and reliability requirements. Lack of intrinsic security and are subject to increasingly sophisticated cyber attacks. From ...

Claims

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Application Information

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IPC IPC(8): H04L12/741H04L29/08H04L12/24H04L45/74
Inventor 张宏科周华春任飞陈佳徐雅琨李占伟
Owner BEIJING JIAOTONG UNIV
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