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Software defined network for power data communication and traffic grooming method thereof

A software-defined network and power data technology, applied in the field of communication, can solve problems such as excessive processing delay and flow entry expiration, and achieve the effect of reducing processing delay and improving efficiency

Active Publication Date: 2016-01-20
STATE GRID CORP OF CHINA +3
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Problems solved by technology

[0003] However, in the existing software-defined network architecture, the idle_timeout value of the flow entry is set to be small, that is, after idle_timeout seconds, the flow entry that fails to match the data packet will expire quickly
In this case, if a data packet arrives at the switch, even the flow entry matching the data packet needs to be re-established due to being deleted, resulting in excessive processing delay

Method used

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  • Software defined network for power data communication and traffic grooming method thereof
  • Software defined network for power data communication and traffic grooming method thereof
  • Software defined network for power data communication and traffic grooming method thereof

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Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] The software-defined network for power data communication in this embodiment, such as figure 1 As shown, it includes client terminal host 1 and host 2, and also includes a centralized controller and 7 switches supporting the OpenFlow protocol; host 1 is responsible for sending data packets and host 2 is responsible for receiving data packets. Host 1 is equivalent to a substation in the power communication network, and host 2 is equivalent to a master station in the power communication network. Host 1 and host 2 are used to simulate the communication between the master station and the substation in the power communication network. Among them, the centralized controller in this embodiment adopts NOX; adopts OpenvSwitch, combines with KVM virtualization platform to generate seven virtual switches supporting OpenFlow protocol. The...

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Abstract

The invention provides a software defined network for the power data communication and a traffic grooming method thereof, which belongs to the technical field of communication session technology. The network comprises a client terminal, a centralized controller and a plurality of switches compatible with the OpenFlow protocol. The application of the software defined network realizes the global network view of the power data communication, and the service quality is ensured to be high. The message interaction is conducted between the centralized controller and the switches compatible with the OpenFlow protocol. Based on the dynamic flow statistical information provided by the switches, the centralized controller dynamically adjusts the idle_timeout value. When the number of s data packets in the mated flow entry exceeds a given threshold, the value of the idle_timeout value in the flow entry is increased to be larger than the interval time of the data packets. Therefore, the data packets can be matched with the flow entry without the need of reconstructing the flow entry. The processing delay of communication data packets is shortened. Meanwhile, the power data communication efficiency of large data communication amount is increased.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a software-defined network for power data communication and a flow grooming method thereof. Background technique [0002] The data communication between the substations in the power communication network and the main station in the power communication network adopts the traditional distributed network architecture. The traditional closed network architecture cannot realize the rapid development and deployment of new services such as cloud computing. Due to the lack of a global network view, the quality of service cannot be fully guaranteed. Software-defined networking utilizes global network resources and realizes on-demand service deployment through open and programmable interfaces, thus gaining widespread favor. [0003] However, in the existing software-defined network architecture, the idle_timeout value of the flow entry is set to be small, that is, after...

Claims

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Application Information

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IPC IPC(8): H04L12/717H04L12/727H04L12/733H04L12/741H04L12/751H04L12/801G06Q50/06H04L45/42H04L45/02H04L45/121H04L45/122H04L45/74
Inventor 夏泳赵宏昊孟凡博朱明祁宁齐智刚邹愚吴雪梅
Owner STATE GRID CORP OF CHINA
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