Framework system of grade software defined network software controller and implementation method thereof

Abstract

The invention discloses a framework system of a grade software defined network software controller and an implementation method thereof. The framework system and the implementation method are applied in a multi-domain optical transport network (OTN); an inter-domain mapping relation of a whole network view and a physical device network is established according to whole network topologic information by a primary (SDNOTN) controller; an inter-domain mapping processing request of the whole network view and the physical device network in each domain is sent to each auxiliary SDNOTN; and the domain mapping relation of the whole network view and the physical device network is established by the auxiliary SDNOTN controllers. Grade structures of the primary SDNOTN controller and the auxiliary SDNOTN controllers are arranged in the framework system, so that the mapping relation of the multi-domain whole network view and the overall physical device network in real sense is realized, and a whole network resource optimizing algorithm is realized in the real sense, so that the problem that the inter-domain link resource conflict occurs in a cross-domain service connection signaling process can be thoroughly solved.

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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