Controller for determining network state based on SDN (Software Defined Networking) and determination method thereof

A technology for determining network status and methods, applied in the field of network communication, can solve problems such as precise control of unfavorable forwarding planes
CN103346922AActive Publication Date: 2013-10-09UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
UNIV OF ELECTRONICS SCI & TECH OF CHINA
Publication Date
2013-10-09

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Abstract

The invention discloses a controller for determining a network state based on an SDN (Software Defined Networking) and a determination method thereof. The controller comprises a state updating module, a calculation module, an execution module, a flow management module and an evaluation module, wherein the state updating module is used for updating through a state and a path calculated by the calculation module; the calculation module is used for calculating a current network resource state N; the execution module is used for setting rules according to the path calculated by the calculation module and writing the path into a flow meter; the flow management module is used for carrying out congestion avoidance, flow supervision and shaping; and the evaluation module is used for carrying out synthetic judgment according to the current network resource state N calculated by the calculation module and QoS (Quality of Service) requirements of an application when receiving the application transmitted by a switch. According to the controller, the network state can be accurately controlled, a forwarding plane is precisely controlled, a 'Q+X' resource distribution mode is proposed, and the network resource is scheduled, so that the flexibility, the high efficiency, the intelligence and the optimization of a network can be realized.
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Description

[0001] technical field

[0002] The invention relates to the technical field of network communication, in particular to an SDN-based controller for determining network status and a determination method thereof. Background technique

[0003] With the continuous development and popularization of network applications, the Internet has become an indispensable part of people's lives. The contradiction between the limited demand for bandwidth and limited network resources, and the contradiction between core business and non-core business have become problems that the Internet needs to solve urgently. The current network lacks a comprehensive service quality assurance mechanism, and network resources are seriously congested and cannot be effectively managed. The service quality problem has become a bottleneck restricting the development of bandwidth network services. QoS can be represented by a series of measurable indicators: available bandwidth, packet loss rate, delay, delay j...

Claims

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