Wireless access method and wireless access controller

An access control and access method technology, applied in the field of communication, can solve the problems of low access efficiency, the inability of the AC to respond to the CAPWAP tunnel establishment request in time, and the limited capacity of the AC to handle the load, etc., to achieve the effect of improving the access rate

Active Publication Date: 2013-01-30
RUIJIE NETWORKS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limited ability of the AC to handle the load, when a large number of APs are connected to the AC, the AC cannot respond to each AP's CAPWAP tunnel establishment request in time, and some APs will f

Method used

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  • Wireless access method and wireless access controller
  • Wireless access method and wireless access controller
  • Wireless access method and wireless access controller

Examples

Experimental program
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Embodiment Construction

[0031] figure 1 It is a flowchart of the wireless access method according to Embodiment 1 of the present invention. like figure 1 As shown, the wireless access method provided by this embodiment specifically includes the following steps:

[0032] Step 10: The AC obtains the access request message from the access point AP.

[0033] In this embodiment, the access request message may be a Datagram Transport Layer Security (DTLS) handshake request message initiated by the AP to the AC. Before the AP initiates the handshake request message to the AC, the AP may initiate a handshake request message to multiple ACs. A Discovery request message is sent, and the AP starts a timer. When the timer expires, the AP selects an optimal AC from the discovery response messages received from multiple ACs, and initiates a DTLS handshake request to the AC. , the optimal AC is determined according to the load capacity of the AC itself obtained in the response packet returned by the AC.

[0034...

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PUM

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Abstract

The invention provides a wireless access method and a wireless access controller (AC), wherein the wireless access method comprises the steps of: obtaining an access request message from an access point (AP); judging whether a preset overtime stamp runs out, if so, resetting the overtime stamp and setting a total number of APs which are accessed in a current period as 1, and if not, judging whether the total number of the APs which are accessed in the current period is more than or equal to a preset threshold for the number of periodically accessed APs, if so, returning a rejection message to the AP, and if not, returning a permission message to the AP. According to the wireless access method provided by the invention, by controlling the number of APs which have been already accessed and a total number of APs which are being accessed in an access period, the APs limited by the method can be responded normally when each CAPWAP (Control And Provisioning of Wireless Access Points) channel is established, and the phenomena of disconnection and reconnection of the channel due to heavy load of a CPU (Central Processing Unit) can be avoided; therefore, the access rate of the APs is increased.

Description

technical field [0001] The present invention relates to communication technologies, and in particular, to a wireless access method and a wireless access controller (Access Controller, AC for short). Background technique [0002] In the Wireless Local Area Networks (WLAN) thin Access Point (AP) architecture, the AP needs to establish a Controlling and Provisioning of Wireless Access Point (CAPWAP) with the AC. tunnel. After the AC delivers the configuration to the AP, the AP can normally provide various services for the wireless station (Station, STA for short). [0003] In the current WLAN network, one AC is associated with thousands of APs. Due to the limited ability of the AC to handle the load, when a large number of APs access the AC, the AC cannot respond to the CAPWAP tunnel establishment request of each AP in time, and some APs fail to establish CAPWAP tunnels. The APs that fail to establish the CAPWAP tunnel continue to repeatedly initiate establishment requests t...

Claims

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Application Information

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IPC IPC(8): H04W48/06H04W76/02
Inventor 吴炳荣
Owner RUIJIE NETWORKS CO LTD
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