FPGA-based SDN network flow measurement system and method

A technology of network traffic and measurement system, which is applied in the field of real-time measurement of FPGA-based SDN network traffic, can solve the problems of low measurement efficiency and accuracy, achieve the effects of eliminating the impact of processing capacity, reducing burden and overhead, and improving efficiency

Inactive Publication Date: 2018-12-11
XIDIAN UNIV
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Problems solved by technology

[0006] The purpose of the present invention is to address the deficiencies in the prior art above, to propose a FPGA-based SDN network flow measurement system and method for solving the technical problems of low measurement efficiency and accuracy in the prior art

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  • FPGA-based SDN network flow measurement system and method
  • FPGA-based SDN network flow measurement system and method
  • FPGA-based SDN network flow measurement system and method

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Embodiment Construction

[0055] Below in conjunction with accompanying drawing and specific embodiment, the present invention is described in further detail:

[0056] refer to figure 1 : The FPGA-based SDN network traffic measurement system includes a controller, a switch group, and a flow real-time measurement module based on an FPGA platform.

[0057] The controller is the core component of the SDN network and is located at the control layer of the network. Its main function is to construct measurement flow tables and measurement flow data packets, and manage its own traffic and the traffic of switches.

[0058] The switch group, including the source switch connected in series, multiple intermediate switches, and the destination switch, is located at the data forwarding layer of the network, and each switch supports the Open Flow protocol. The flow measurement data packet sent by the controller is forwarded after identification and matching, multiple intermediate switches are used to realize the fo...

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Abstract

The invention provides an SDN network flow measurement system and method based on FPGA, which is used for solving the technical problems of low measurement efficiency and accuracy in the prior art. The realization steps are as follows: 1. a controller constructs a measurement flow table and a measurement flow data packet; 2. a switch forwards the measurement flow data packet; 3, a flow acquisitionmodule collects statistical frames; 4, a flow storage module stores statistical frames; 5, an address map module obtains the stream number and the packet length of the statistical frame; 6. a controlunit module analyze the address resolution of the flow counter; 7. a group number calculation module measures the group number; 8. a flow capacity calculation module measures the flow capacity and the basic increment; 9. a flow analysis module calculates the new packet number and the new flow capacity; 10. a flow announcement module returns the new flow counter value to the controller to realizethe real-time measurement of the network flow.

Description

technical field [0001] The invention belongs to the technical field of computer network communication, and relates to a method for measuring SDN network traffic, in particular to an FPGA-based real-time measurement method for SDN network traffic, which can be used in large-scale network deployment scenarios to timely understand the performance of the overall network and local areas status, troubleshoot network faults, and collect decision-making information for adding new network services. Background technique [0002] Network traffic measurement is the process of capturing data packets on a network and analyzing them. Network traffic measurement captures data packets passing through the network, analyzes and processes the obtained data sets, extracts activity characteristics and statistical laws that reflect network behavior, monitors changes in network behavior, and predicts the development trend of network traffic characteristics. The measurement and research of network ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/26H04L12/801H04L12/24
CPCH04L41/142H04L43/0888H04L47/10
Inventor 刘乃安朱芮碧安豪政
Owner XIDIAN UNIV
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