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A Named Data Network Cache Method Based on Dichotomy

A named data network and dichotomy technology, applied in the field of information center network cache, can solve problems such as large uncertainties, and achieve the effects of improving experience, reducing average delay, and rational utilization

Active Publication Date: 2022-04-22
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Someone proposed a caching scheme based on probabilistic storage. Every time a router receives a data packet, it performs a calculation according to the probability of 0.5 to determine whether to cache the data packet. This scheme can make the router cache more data, but there is a large uncertainty sex

Method used

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  • A Named Data Network Cache Method Based on Dichotomy
  • A Named Data Network Cache Method Based on Dichotomy
  • A Named Data Network Cache Method Based on Dichotomy

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Embodiment Construction

[0037] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the examples. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0038] A named data network caching method based on dichotomy, comprising the following steps:

[0039] Step 1. The content requester CR initiates a data request, and sends the interest packet out through all available forwarding interfaces. The structure of the interest packet is as follows figure 2 shown;

[0040] Step 1.1. The content requester CR encapsulates the content name to be requested in the content name field CN of the interest packet;

[0041] Step 1.2, the content requester CR creates a random number and encapsulates it in the random number field Nonce of the Inter...

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Abstract

The invention discloses a named data network caching method based on dichotomy. A content requester initiates a data request, and sends an interest packet through all available forwarding interfaces; a router receives the interest packet, and sequentially retrieves the content storage, pending interest table, and Forward the information base, and determine whether to send or update the router’s pending interest table to the next-level router or discard it. The content producer generates a data packet according to the interest packet; the router forwards the data packet to the upper-level router, and chooses whether to store it according to the cache flag value data pack. The invention makes the data cache be allocated reasonably, effectively improves the cache hit rate of the data packet, and reduces the average request delay and the average routing hops.

Description

technical field [0001] The invention belongs to the technical field of information center network caching, and more specifically relates to a named data network caching method based on dichotomy. Background technique [0002] Today, the Internet is still developing rapidly, and the content diversity of the network is increasing day by day, but the traditional IP network architecture still follows the design concept of the last century, and the traditional network architecture is facing more and more technical challenges. In order to solve the inadaptability of the traditional network architecture in terms of network expansion, security, flexibility, and mobility, in recent years, countries around the world are paying attention to designing a new future Internet architecture, and one of the mainstream research directions is the information center network. Information-Centric Networking (ICN) is a network switching architecture with data content as the core. The main body of d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L67/568
Inventor 侯睿金继欢张俊敏田微张成俊
Owner SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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