Collaborative method of multi-controller collaborative platform based on openflow protocol

Abstract

The invention discloses a collaboration method of a multi-controller collaboration platform based on the OpenFlow protocol. The multi-controller collaboration platform comprises a controller safety connection module, a switch certificate secret key storage module, a load balancing strategy module and a failover strategy module. The multi-controller collaboration platform is built on a controller plane, communication between controllers and the multi-controller collaboration platform uses verification based on an information authentication code so as to guarantee that information received by the multi-controller collaboration platform really comes from true sending side controllers and is unmodified information, and the controllers and a switch are authenticated through an improved secure transmission protocol TLS, and meanwhile by collecting state information of the controllers, the multi-controller collaboration platform issues strategies to achieve load balancing and failover among the controllers.

Description

technical field [0001] The invention relates to computer application technology, in particular to a collaboration method of a multi-controller collaboration platform based on the OpenFlow protocol. Background technique [0002] With the continuous expansion of the network scale and the increasing number of network interconnection devices, the traditional network is facing more and more problems, such as the management of network devices, the expansion and extension of the network, and the centralized control of the network. As a new type of network architecture, software-defined networking achieves flexible control of network traffic by separating the control plane from the data plane. The control plane is responsible for generating forwarding policies and providing development interfaces for the application layer, and the data plane is responsible for the distribution of data packets. Forward. SDN centralized control reduces the management and configuration of complex netw...

AI Technical Summary

Problems solved by technology

Communication between multiple controllers lacks security specifications. The existing OpenFlow protocol only provides communication specifications between controllers and switches, but does not specify specific security protocols and standards for communication between multiple controllers. Therefore, multiple Communication between controllers still faces security issues such as authentication and data synchronization; at the same time, how to achieve load balancing among multiple controllers to achieve effective use of resources, and how to achieve failover between multiple controllers to avoid single-controller The failure of the network leads to the paralysis of the network, and these are also the challenges faced by the multi-controller architecture

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