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A CCN Distributed Mobility Data Transmission Method

A data transmission method and mobility technology, applied in the field of distributed mobility data transmission and data transmission, can solve the problems of large state maintenance burden of core network routers, difficulty in content verification, large routing convergence problems, etc.

Active Publication Date: 2016-08-31
CHINA INTERNET NETWORK INFORMATION CENTER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sape Mullender analyzed the problem of source mobility in CCN: not only is it facing a huge routing convergence problem, but it may also cause difficulties in content verification due to source node movement (reference: http: / / www.ccnx.org / pipermail / ccnx-users / attachments / 20110919 / 71193aec / )
However, such solutions impose a greater state maintenance burden on the core network routers, which will seriously affect the efficiency of data forwarding in the CCN environment.

Method used

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  • A CCN Distributed Mobility Data Transmission Method
  • A CCN Distributed Mobility Data Transmission Method
  • A CCN Distributed Mobility Data Transmission Method

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example

[0063] In order to more clearly demonstrate the switching process proposed in this patent, this section will illustrate the processes of receiver movement and issuer movement respectively.

[0064] 1) Receiver moves

[0065] In this example, the mobile receiver switches from AR1 to AR2, as Figure 5 shown.

[0066] The main processes include:

[0067] 1) When the mobile receiver moves to the overlapping area of ​​AR1 and AR2, a possible handover is predicted;

[0068] 2) In order to trigger mobility management, the mobile receiver sends a Handover Initiation message (Handover Initiation, HI) to AR1, which can fully refer to IPv6 fast handover (references: R. Koodli, Mobile IPv6 FastHandovers, IETF RFC 5268, June 2008) The trigger message in , but contains the identification information of AR2;

[0069] 3) When AR1 receives the HI message, it needs to check its own PIT to find out the content name corresponding to the receiver, and use the content name and the identifier of...

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Abstract

The invention discloses a CCN distributed mobility data transmission method. This method is as follows: 1) When the receiver moves from the access router AR1 to the overlapping area with the router AR2, send a message HI containing the identification information of the AR2 to AR1; Find the content name corresponding to the recipient in , and construct a signaling message with the AR2 identifier, and delete the corresponding PIT entry; 3) AR1 sends the signaling message along the reverse path corresponding to the content name, and determines the branch node ;The branch node points the corresponding entry in the PIT to the AR2 and continues to forward the signaling message, and the subsequent router creates the PIT entry corresponding to the content name and points the next-hop interface to AR2; 4) The intermediate router from the branch node to AR2 is established The PIT entry corresponding to the content name. The invention avoids switching time delay and huge network overhead.

Description

technical field [0001] The invention discloses a data transmission method, in particular to a CCN distributed mobility data transmission method, which belongs to the technical field of mobile communication. Background technique [0002] With the rapid development of information technology, new Internet applications emerge in an endless stream, causing traditional IP technology to face many challenges. In particular, the rapid development of mobile communication technology and the emergence of emerging data applications such as the Internet of Things and cloud computing are gradually changing the traditional mode of Internet users' access to service resources, making the Internet gradually develop from the basic functions of interconnection to supporting massive data interaction. , and pose new challenges to network security and efficient mobility. [0003] In recent years, researchers have used many methods and means to improve and optimize the existing Internet to support ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04L29/06
Inventor 延志伟李晓东
Owner CHINA INTERNET NETWORK INFORMATION CENTER