Unlock instant, AI-driven research and patent intelligence for your innovation.

A caching method and device based on popularity and node importance

A technology of node importance and popularity, applied in digital transmission systems, data exchange networks, electrical components, etc., can solve problems such as high storage pressure of important nodes

Active Publication Date: 2020-04-17
BEIJING UNIV OF POSTS & TELECOMM
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the content-centric network, when using Betw's improved caching strategy for caching, important nodes need to cache all target data files, resulting in a problem of high storage pressure on important nodes

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A caching method and device based on popularity and node importance
  • A caching method and device based on popularity and node importance
  • A caching method and device based on popularity and node importance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0063] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0064] The embodiment of the present invention provides a caching method based on popularity and node importance, which can be applied to an intermediate node, and the intermediate node can be a routing device. Wherein, the routing device is a network device capable of receiving, sending, and storing data files, such as a router, a switch, or a gateway. In any network topology, there can be multiple levels of intermediate nodes between the server and user nodes, and each level can c...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a caching method and device based on popularity and node importance, and relates to the technical field of network caching. The method includes: when receiving a target data file sent by a network device, judging whether the device is an important node, the target data file is a data file responding to a content request sent by a preset user node; if the device is an important node node, then judge whether the current cache utilization rate exceeds the preset threshold; if the judgment result is yes, then store the target data file; if the judgment result is no, then obtain each data file currently stored in the device and the target data The content popularity of the file; according to the content popularity of each data file and the target data file, and a preset file storage strategy, determine an intermediate node for storing the target data file, and pass the intermediate node The target data file is stored. The storage pressure of important nodes can be reduced by adopting the present invention.

Description

technical field [0001] The present application relates to the technical field of network caching, in particular to a caching method and device based on popularity and node importance. Background technique [0002] With the exposure of many disadvantages of the traditional TCP / IP network, Content-Centric Network (CCN), as a new type of network, has become a research hotspot in the future network. The content-centric network emphasizes that the content resource itself is the center, and the content is cached in the routing node to make the content close to the user. Therefore, the research on the caching strategy has become one of the key technologies of the CCN network. [0003] Based on the traditional mainstream CCN network caching strategies LCE (Leave copy everywhere, cache everywhere) and Rdm (Random caching Strategy, random caching strategy), the proposed Betw (Betweenness, node betweenness) improved caching strategy has attracted people's attention. The workflow of Be...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04L12/24H04L12/26
CPCH04L41/12H04L43/16H04L67/5682H04L67/568
Inventor 黄海黄雪梅田耒景晓军
Owner BEIJING UNIV OF POSTS & TELECOMM