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Named data network comprehensive routing method based on position information and content pushing

A technology for naming data networks and location information, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as inability to effectively achieve a balance between bandwidth overhead and algorithm complexity, and limit the applicability of routing methods

Active Publication Date: 2019-08-20
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, for NDN networks that will carry multiple services, the above routing methods cannot effectively achieve a balance between bandwidth overhead and algorithm complexity, which greatly limits the applicability of routing methods

Method used

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  • Named data network comprehensive routing method based on position information and content pushing
  • Named data network comprehensive routing method based on position information and content pushing
  • Named data network comprehensive routing method based on position information and content pushing

Examples

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Embodiment 1

[0098] This embodiment discusses the application of an integrated routing method based on location information and content push in NDN communication.

[0099] This embodiment is based on the NDN network. The user sends an Interest packet to request data, and the content source responds to the request with a reply data packet. Network topology and node settings such as figure 1 shown. In this embodiment, the NDN node naming format is "nodex(x=1,2,3...)", where node1 is a user, and node6 is a content source. The NDN data naming format is "datax(x=1,2,3...)". An example of NDN communication using the routing method of the present invention is as follows:

[0100] Step 1, setting network management server, specifically include following sub-steps:

[0101] Step I.1 selects node H in the central area of ​​NDN as the network management server. In this embodiment, the network topology and the settings of node H are as follows figure 1 shown;

[0102] Step I.2 Node H broadcasts ...

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Abstract

The invention relates to a named data network comprehensive routing method based on position information and content pushing, and belongs to the technical field of computer network routing optimization. The method comprises: arranging a network management server, determining the link state of each node and starting a link state timer; establishing an NDN whole network topological structure chart and starting a network topological timer; establishing a network topology application record table; establishing a matching list of the whole network data name and the content source name and startinga statistical interval timer; the user sending a position request interest packet and the network management server replying the position data packet; a user calculating a forwarding path and sendinga data request interest packet and a content source reply content data packet, a network management server evaluating data popularity and a content source pushing data name to supplement an FIB tableof an NDN node, and regularly detecting a link state to update a network topology and pushing a high popularity data name. The method is relatively low in complexity and relatively low in bandwidth overhead, and can realize rapid establishment of the FIB table and efficient forwarding of the interest packet.

Description

technical field [0001] The present invention relates to a named data network comprehensive routing method based on location information and content push, in particular to a named data network NDN (Named Data Networking) based on location information and content push comprehensive routing method, which belongs to computer network routing optimization technology field. Background technique [0002] Named Data Network (NDN) is a network system with named data as the main communication object, and it is a special case of information-centric network. In NDN, by naming the data and communicating according to the name information of the data packet, the current communication method based on the IP address of the network is changed, and the separation of the data content and the host address is realized. Compared with TCP / IP network is better. The communication in NDN is driven by the content requester, that is, the content requester needs to send a data request first, and the co...

Claims

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Application Information

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IPC IPC(8): H04L12/751H04L12/741H04L12/721H04L45/02H04L45/74
CPCH04L45/02H04L45/745H04L45/12H04L45/14
Inventor 安建平刁文澜李彤胡晗张宇于季弘范戎飞
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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