SDN-based WLAN hierarchical networking system and method

A layered networking and network technology, applied in the field of communication, can solve problems such as unsatisfactory degree and function optimization, and achieve the effect of good practicability and easy migration.

Active Publication Date: 2015-04-29
CHENGDU SKSPRUCE TECH
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  • Claims
  • Application Information

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Problems solved by technology

[0005] The inventor found in the research that related WLAN networking (for example: the above-mentioned thin AP+AC networking) to SDN migration technology is not i...

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specific Embodiment

[0045] The embodiment of the present invention provides an SDN-based WLAN layered networking system and method. In the system and method, the AC connected to the SDN controller is used as the controller of the AP connected to it and the SDN controller. Node, the AC can create a virtual port for the AP and report the status of the virtual port of each AP to the SDN controller, so that the SDN generates management status information. After receiving the management status information, the AC converts the management information of the corresponding AP into CAPWAP The message is delivered to the AP. Since the AC acts not only as the controller of the AP, but also as the switching node of the SDN controller, a hierarchical WLAN network architecture consisting of the SDN controller, AC, and AP is realized, which facilitates the migration of WLAN services to the SDN. This technology can effectively Using the existing equipment, it can fully implement various functions in the SDN techn...

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Abstract

The invention provides an SDN-based WLAN hierarchical networking system and method. The SDN-based WLAN hierarchical networking system comprises an SDN controller and an AC, wherein the AC is in communication connection with the SDN controller and serves as a switching node of a controller of APs connected with the AC and the SDN controller. The AC establishes virtual ports for the APs, sets the states of the virtual ports of all the APs according to the current network environment and reports the states of the virtual ports to the SDN controller; the SDN controller is used for generating management state information according to the states of the virtual ports and transmitting the management state information to the AC; the AC is further used for converting management information, corresponding to the APs, in the management state information into a CAPWAP message and issuing the message to the APs; accordingly, a hierarchical WLAN network architecture integrating the SDN controller, the AC and the APs is realized, WLAN services can be migrated to an SDN conveniently, investment of existing equipment is protected, the advantages of the SDN technology can also be fully utilized, and the practicality is good.

Description

technical field [0001] The present invention relates to the communication field, in particular to an SDN-based WLAN layered networking system and method. Background technique [0002] WLAN (Wireless Local Area Networks, wireless local area network) networking schemes include fat AP (Access Pointer, access node) networking and thin AP+AC (Access Controller, access controller) networking. Among them, in the thin AP+AC networking scheme, the AP is centrally managed by the AC, and the control data needs to pass through the AC. The business data can be processed by the AC according to the needs, and the AC undertakes part of the BRAS (Broadband Remote Access Server, broadband remote access server) function. , has the advantages of good manageability, support for roaming switching, and easy large-scale deployment, and has been widely used in operator networks and large enterprises; but its disadvantage is that the AC is the bottleneck of the entire network, and the physical area o...

Claims

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Application Information

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IPC IPC(8): H04W84/12H04L29/08
CPCH04W24/02H04W24/08H04W84/12
Inventor 吴方雷永成张志飞
Owner CHENGDU SKSPRUCE TECH
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