A content-centric network collaborative caching method and system

Abstract

An embodiment of the invention discloses a collaboration caching method and system for a content center network. The method comprises enabling all nodes of the content center network to be divided into a plurality of subnetworks on the basis of a communication dominating set, enabling each subnetwork to comprise one dominating node and one or a plurality of non-dominating nodes, enabling each node to comprise one embedded cache, and enabling each dominating node to store content placing index information and content request transfer index information of the subnetwork where the dominating node is located; and synergizing all embedded caches on the basis of content caching placing and dynamic routing request. According to the embodiment, the subnetworks are divided on the basis of the communication set, content setting is related to heat on the basis of the network, dynamic routing is achieved through content placing / transfer index information, the request is routed to the targeted node nearby, synergistic caching is achieved, redundancy of network content is reduced, network expenditure is reduced simultaneously, and caching synergistic efficiency is improved.

Description

technical field [0001] The invention relates to the field of network cache distribution management, in particular to a content-centric network collaborative cache method and system. Background technique [0002] Internet applications are undergoing a transition from a host-oriented point-to-point communication model to a content-centric communication model. Internet applications mainly revolve around the distribution and retrieval of content, that is, they are more concerned about the content itself. To this end, Content Centric Network (CCN) focuses on exploring information / content / object-centric future network architecture. In-network cache (In-network Caching) is the basic facility of each router in CCN. The router caches the data packets passing through it according to a certain strategy, and serves subsequent requests. [0003] Embedded caching is an important feature of CCN. The basic idea is that caching devices are inherently deployed on each router node. The desi...

AI Technical Summary

Problems solved by technology

This phenomenon is due to the lack of an effective coordination mechanism between nodes, and the placement of content cannot guide the forwarding of requests, resulting in an increase in network delay

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