Architecture system and implementation method of a hierarchical software-defined network controller

Abstract

The invention discloses a framework system and implementation method of a hierarchical software-defined network controller, which is applied in a multi-domain optical transport network (OTN), wherein the parent SDN OTN controller establishes a network view and physical equipment of the entire network according to the topology information of the entire network The inter-domain mapping relationship of the network and send the mapping processing request of the network view of the whole network and the physical device network in each domain to each sub-SDN OTN controller; the sub-SDNOTN controller establishes the mapping of the network view of the whole network and the physical device network in this domain relation. In the present invention, the hierarchical structure of the parent SDN OTN controller and the child SDN OTN controller is set, which can realize the mapping relationship between the network view of the multi-domain entire network and the global physical equipment network in the true sense, and realize the resource optimization algorithm of the entire network in the true sense , and completely solve the problem of inter-domain link resource conflicts encountered in the process of cross-domain service connection signaling.

Description

technical field [0001] The present invention relates to the controller technology of Software Defined Networking (SDN for short) in Optical Transport Network (OTN for short), in particular to a hierarchical software-defined network controller in a multi-domain OTN network scenario Architecture system and implementation method. Background technique [0002] With the advent of the cloud network era, the industry has put forward higher requirements for the development of the Internet. How to meet the continuous growth of the number of users, business types, bandwidth requirements, etc., and how to meet the real-time and dynamic withdrawal of service traffic by users are the main problems to be solved urgently for the next-generation optical network transmission technology as the core bearer technology; it is not difficult to find out, how to User-oriented, realizing "on-demand service" and "plug and play" is the key factor to solve the above problems, and it is also the operat...

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Problems solved by technology

[0035] The technical problem to be solved by the present invention is to provide a hierarchical software-defined network controller architecture system and implementation method to solve the network architecture defect caused by the inability of SDN controllers in different domains to notify each other in the case of multi-domain OTN in the prior art

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