SDN-based CCN route assisting management method, CCN forwarding device and network controller

Abstract

The invention provides an SDN-based CCN route assisting management method, a CCN forwarding device, a network controller and a system. The SDN-based CCN route assisting management method comprises the steps that a software definition network (SDN) switching module in the content-centric networking (CCN) forwarding device receives a CCN data packet sent by an edge forwarding device; the CCN data packet is sent to the network controller, so that the network controller determines the optimal transmission path of the CCN data packet in the CCN network according to the CCN topology and generates issued configuration information according to the optimal transmission path; the SDN switching module receives the configuration information sent by the network controller, wherein the configuration information comprises information for configuring a flow table; whether matched information exists in the CCN data packet and the flow table or not is judged; the SDN switching module processes the CCN data packet according to the matched result. The processing behavior for the CCN data packet is affected by affecting the SDN switching module, then CCN route selection is affected, the CCN network is prevented from unnecessary flooding, and the excessive network redundancy is lowered.

Description

technical field [0001] The invention relates to the field of the Internet, in particular to an SDN-based assisted CCN routing management method, a CCN forwarding device, a network controller and a system. Background technique [0002] In the Internet, ICN (Information-centric Networking) adopts an information-centric network communication model to replace the traditional address-centric network communication model. The communication mode evolves from host to host to host to network, forwarding The mechanism has evolved from traditional store-and-forward to cache-forward, and the architecture supports host mobility, which solves the problem of efficient transmission of massive information. [0003] CCN (Content-centric Networking) is the most relevant ICN solution available. The basic communication mode of CCN is centered on named content (Named Data). Users request named content, content publisher (server) publishes and transmits named content, and CCN router caches and tra...

AI Technical Summary

Problems solved by technology

[0005] The present invention proposes a management method based on SDN-assisted CCN routing, a CCN forwarding device, a network controller and a system, which solves unnecessary redundant traffic and network resources caused by flooding during CCN routing selection in the prior art The problem of low utilization

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