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Method for controlling wireless access point equipment based on OpenFlow protocol

An openflow protocol and wireless access point technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as increased maintenance costs, inconvenient construction and management of converged networks, and different architectures, so as to reduce maintenance costs and realize Normalized, fully integrated effect

Inactive Publication Date: 2014-07-23
陈桂芳
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AI Technical Summary

Problems solved by technology

[0002] With the development of smart phones, WLAN (Wireless Local Area Network) technology has been widely used. In WLAN solutions, the traditional wireless controller (hereinafter referred to as AC) controls the wireless access point device (hereinafter referred to as AP) using the CAPWAP protocol. , but with the development and popularization of SDN technology, the traditional wired network has gradually evolved into an SDN architecture, and the SDN controller is used to control the SDN switch through the OpenFlow protocol. However, the wireless part is still based on the CAPWAP protocol. This wired and wireless use is different. The different protocols lead to different architectures of wired and wireless integrated networks, which brings inconvenience to the construction and management of converged networks, and correspondingly increases maintenance costs.

Method used

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  • Method for controlling wireless access point equipment based on OpenFlow protocol
  • Method for controlling wireless access point equipment based on OpenFlow protocol
  • Method for controlling wireless access point equipment based on OpenFlow protocol

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Embodiment Construction

[0019] 1. After the AC device and the AP device start up normally, a connection is established through the standard Openflow protocol. The AC device sets the data plane of the AP through the OFPT_FLOW_MOD message of Openflow. If the data plane needs to add a CAPWAP header, the OFPT_FLOW_MOD message sent by the AC Action is set to CAPWAP. If DTLS encryption is required, the Action in the OFPT_FLOW_MOD message sent by the AC is set to DTLS, such as figure 1 shown. When the AP receives the message, it sets its own flow table and matches the conditions when sending the data flow. If it is CAPWAP, it will add a CAPWAP message to the message header. If it is DTLS, it will start DTLS encryption;

[0020] 2. The user realizes the management of the AP through the AC, which is realized through the Configuration command extended based on the Openflow protocol, such as figure 2 As shown, the AC sends Configuration to the AP, and the FLAGS flag of the command it sends is set to Radio, an...

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Abstract

On the basis of a CAPWAP technology of an existing wireless controller AC on wireless access point equipment AP, control of the AC over the AP on a data surface and a management surface and data collection of a monitoring surface are achieved through an Openflow command and parameter extension by utilizing and extending an Openflow protocol, the function of CAPWAP is replaced with OpenFlow extension, and the full fusion of a wired and wireless integrated network on frame is achieved through normalization of networking protocol Open Flow.

Description

technical field [0001] The wireless controller AC controls the wireless access point device (AP) through the extension of the OpenFlow protocol. Background technique [0002] With the development of smart phones, WLAN (Wireless Local Area Network) technology has been widely used. In WLAN solutions, the traditional wireless controller (hereinafter referred to as AC) controls the wireless access point device (hereinafter referred to as AP) using the CAPWAP protocol. , but with the development and popularization of SDN technology, the traditional wired network has gradually evolved into an SDN architecture, and the SDN controller is used to control the SDN switch through the OpenFlow protocol. However, the wireless part is still based on the CAPWAP protocol. This wired and wireless use is different. The different protocols lead to different architectures in the wired and wireless integrated network, which brings inconvenience to the construction and management of the converged ...

Claims

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Application Information

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IPC IPC(8): H04L12/24
Inventor 陈桂芳
Owner 陈桂芳
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