SDN network service recovery device, system and method and master controller

Abstract

The invention discloses an SDN network service recovery device, system and method and a master controller. The device comprises a state detection module which is used for monitoring operation states of all controllers and connection states of all switch links of an SDN network, wherein all controllers comprise a master controller and a plurality of standby controllers; a controller management module which is used for keeping data synchronization between the master controller and the standby controllers, wherein if a fault occurs in the master controller, one standby controller is selected as anew master controller, and the new master controller is configured according to configuration information of the master controller; and a link management module which is used for carrying out switchlink fault recovery according to a fault attribute if the fault occurs in one switch link. According to the device, the system, the method and the master controller, the reliability of the SDN networkis effectively ensured, and the SDN system is recovered automatically.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a service recovery device, main controller, system and method of an SDN network. Background technique [0002] In the traditional distributed IP network, the control logic and data forwarding functions are implemented on the network equipment, and the network equipment needs to implement the intelligence of the entire network under the control of a large number of distributed protocols. As a result, the network control plane is too complex, and the flexibility and scalability are difficult to adapt to the rapid development of the network. [0003] SDN (Software Defined Network, Software Defined Network) is an open network architecture, the main features are centralized control and network programmability, allowing network managers to manage and operate the entire network in the form of software programming. SDN separates the logic control function from the data fo...

AI Technical Summary

Problems solved by technology

[0005] As a new technology, the SDN network also faces unstable business conditions, such as sudden failures, network congestion, network attacks, etc., resulting in disconnection of network connections, and the SDN network may also be paralyzed due to various reasons. , network interruption will bring huge losses to users, so ensuring the reliability and availability of SDN networks is an urgent need for SDN network applications

Images