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Message processing method for openflow switch in wireless communication

A technology of wireless communication and message processing, applied in the direction of data exchange network, digital transmission system, electrical components, etc., can solve the problems of inflexible and efficient message processing, no design group table processing process, etc., to improve processing speed and Efficiency and flexibility, the effect of increasing processing speed

Inactive Publication Date: 2017-11-28
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The message processing in the above technical solution is not flexible and efficient enough
There is also no process for designing the group table

Method used

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  • Message processing method for openflow switch in wireless communication
  • Message processing method for openflow switch in wireless communication

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Embodiment Construction

[0017] The message processing method for the OpenFlow switch in the wireless communication proposed by the present invention, its flow chart is as follows figure 1 As shown, according to the specific content of the invention, the specific flow chart of the OpenFlow switch receiving messages, processing messages, and sending messages in the field of wireless communication is as follows figure 2 shown, including the following steps:

[0018] (1) Let the OpenFlow switch contain multiple flow tables and a group table, each flow table is composed of multiple flow table items and / or a table-miss item (Table-miss), each flow table item and table-miss item Each of them contains matching fields, priorities, counters and instructions. The group table is composed of multiple group entries, and each group entry is composed of a group identifier, priority, group type, counter and action;

[0019] (2) The OpenFlow switch receives the message in the wireless communication, analyzes the pac...

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Abstract

The invention relates to a message processing method for an OpenFlow switch in wireless communication, and belongs to the technical field of wireless communication. The OpenFlow switch receives packets in wireless communication, analyzes the packet headers of the packets, and obtains a packet P; the packet P matches the flow table in the switch, if there is a trigger group in the flow entry of the flow table that matches the packet P table instructions, add a message copying unit at the back of the flow table, and add a message merging unit at the back of the last flow table that matches successfully, the message copying unit copies the message P, and the message P executes the data Pipeline processing, to get the message P2 with the action set to be processed; message P1 is processed in the group table, and the message P'1 is obtained after executing all the actions in the group table according to the priority of the group table items; The unit combines the messages P'1 and P2 to obtain a message P3, executes the action set in the message P3 and completes message processing, and obtains a message for sending. The method improves the packet processing speed and efficiency of the OpenFlow switch.

Description

technical field [0001] The invention relates to a message processing method for an OpenFlow switch in wireless communication, and belongs to the technical field of wireless communication. Background technique [0002] As a new type of network technology, SDN (Software Defined Network, hereinafter referred to as software-defined network), its idea of ​​separating the control plane from the data forwarding plane is in line with the requirements of high controllability of information in the information network. SDN migrates the control panel originally bound with network devices to the central controller, which is responsible for monitoring and managing the entire network. The separation of the control plane and the forwarding plane simplifies the design and operation of the network. The SDN network includes network devices (such as OpenFlow switches) and SDN controllers. The SDN controller is used to generate a flow table (Flow Table) based on user configuration or a dynamic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/931H04L12/937
Inventor 粟欣许希斌卢莹曾捷赵明王京
Owner TSINGHUA UNIV
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