A method for dynamically establishing an SDN controller in a fusion network of SDN and NFV

A technology for dynamically establishing and converging networks, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve problems such as reducing VNF performance, and achieve the effects of improving efficiency and QoS, reducing load, and improving QoS

CN106341324BActive Publication Date: 2019-06-14CERTUS NETWORK TECHNANJING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2019-06-14

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Abstract

The invention relates to a method for dynamically establishing an SDN controller in an SDN and NFV fusion network, which includes a virtual switch receiving a data packet; the virtual switch judges whether the data packet is transmitted across a sub-network / cluster, and if so, the central SDN controller performs Calculate the route and issue the flow table, otherwise the virtual switch judges whether there is an SDN controller in the subnet / cluster, if yes, the subnet / cluster SDN controller performs route calculation and issues the flow table, otherwise the central SDN controller is in the Establish an SDN controller in the subnet / cluster; the virtual switch receives the flow table and forwards the data packet. Using this method of dynamically establishing an SDN controller in a converged network of SDN and NFV can significantly reduce the load of the central SDN controller and improve the QoS of the service; the SDN controller of the sub-network / cluster is created according to the on-demand mode, saving physical resources, Guarantee the resource occupancy of VNF; effectively improve the efficiency and QoS of data transmission within the sub-network / cluster.
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Description

technical field

[0001] The present invention relates to the field of SDN technology, in particular to the field of SDN controller technology, and specifically refers to a method for dynamically establishing an SDN controller in an SDN and NFV fusion network. Background technique

[0002] The SDN (Software Defined Network) controller must be able to schedule and control network resources well. The network control technology of SDN needs to manage, control and schedule the device layer in the entire network, including link discovery, topology management, policy formulation, table Issued under the item and so on. Among them, link discovery and topology management are mainly for the unified monitoring and statistics of the information reported by the underlying switching devices; while policy formulation and entry delivery are for unified control of network devices.

[0003] After the introduction of Openflow technology, its forwarding mechanism based on flow entry matching nee...

Examples

Embodiment Construction

[0039] In order to describe the technical content of the present invention more clearly, further description will be given below in conjunction with specific embodiments.

[0040] The technical scheme of the present invention re-divides the entire complex network to form multiple sub-networks / clusters, and the division principle can be based on geographic location, virtualization technology used, and the like.

[0041] Deploy SDN controllers in a layered manner, deploy a centrally controlled SDN controller, and on-demand SDN controllers in each subnet / cluster.

[0042] The central SDN controller periodically learns about the resource occupancy of each sub-network / cluster by interacting with MANO (Management and Orchestration, management and orchestration).

[0043] After the vSwitch in the subnetwork / cluster receives the data packet to be forwarded, it judges whether the destination of the data packet is within the subnetwork / cluster or across subnetworks / clusters according to...