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Method for dynamically establishing SDN controller in SDN and NFV integrated network

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, improving QoS, and reducing load

Active Publication Date: 2017-01-18
CERTUS NETWORK TECHNANJING
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Problems solved by technology

Therefore, once multiple distributed SDN controllers are established, the performance of the VNF will be reduced, and a method for optimizing the occupation of SDN controllers and VNF resources is needed

Method used

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  • Method for dynamically establishing SDN controller in SDN and NFV integrated network

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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...

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Abstract

The present invention relates to a method for dynamically establishing an SDN controller in an SDN and NFV integrated network. The method includes the following steps that: a virtual switch receives a data packet; the virtual switch judges whether the data packet is transmitted across sub-networks / clusters, if the data packet is transmitted across the sub-networks / clusters, a central SDN controller calculates routing calculation and issues a flow table, otherwise, the virtual switch judges whether an SDN controller exists in a sub-network / cluster, if the SDN controller exists in the sub-networks / cluster, a sub-network / cluster SDN controller carries out routing calculation and issues a flow table, otherwise, the central SDN controller establishes an SDN controller in the sub-network / cluster; and the virtual switch receives the flow table and forwards the data packet. With the method for dynamically establishing the SDN controller in the SDN and NFV integrated network adopted, the load of the central SDN controller is decreased significantly; the QoS (Quality Of Service) of business can be improved; the SDN controller of the sub-network / cluster is created according to an on-demand mode, so that physical resources can be saved, and the resource occupation of a VNF can be ensured; and the efficiency and QoS of data transmission inside the sub-network / cluster can be improved effectively.

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...

Claims

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Application Information

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IPC IPC(8): H04L12/715H04L12/741H04L12/931H04L12/933H04L45/74
CPCH04L45/46H04L45/54H04L49/1507H04L49/354H04L49/70
Inventor 尹菲逯利军钱培专李克民
Owner CERTUS NETWORK TECHNANJING
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