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A method and device for realizing fast roaming based on neighbor detection

A neighbor and fast technology, applied in the field of communication, can solve problems such as failure to adopt, large amount of data, increase of query time interval, etc., and achieve the effect of fast online and reducing data volume

Active Publication Date: 2017-05-10
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the former, when the STA goes online, it needs to query the historical authentication information of the STA on the roaming server every time, which will involve cross-device network communication. If there are many STAs on the roaming server and the network environment is not good , the query time interval will increase, thus affecting the STA online speed
For the latter, synchronizing the historical authentication information of STAs to each AC in the AC cluster requires a very large amount of data to be synchronized, and basically cannot be adopted.

Method used

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  • A method and device for realizing fast roaming based on neighbor detection
  • A method and device for realizing fast roaming based on neighbor detection
  • A method and device for realizing fast roaming based on neighbor detection

Examples

Experimental program
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Embodiment 1

[0035] See figure 2 , the present invention provides a method for realizing fast roaming, the method includes the following steps:

[0036] Step S201, the AC receives and saves the information of the neighbor STA reported by the AP, and synchronizes the neighbor STA information to the STA server;

[0037] Step S202, when any STA goes online, the AC synchronizes the STA information to the STA server, and determines the neighbor AC of the STA according to the STA information saved by the STA server, and synchronizes the authentication information of the STA to the STA server. The neighbor AC, so that the STA can quickly go online through the synchronized authentication information when roaming to the neighbor AC.

[0038] In this embodiment, when a STA goes online for the first time, the STA's source AC synchronizes the STA's information to the STA server, equivalently, if the STA's neighbor AC also detects the STA through the AP under its jurisdiction, The information of the...

Embodiment 2

[0043] See image 3 , the present invention also provides an auxiliary method for realizing fast roaming, the method includes the following steps:

[0044] Step S301, the STA server receives and saves the STA information sent by different ACs in the network system, and determines the neighbor relationship of the STA according to the received STA information;

[0045] Step S302, when the STA server finds that the STA has newly added a neighbor AC, the STA server sends a neighbor notification message to the source AC of the STA so that the source AC of the STA can synchronize the authentication information of the STA to the neighbor AC of the STA; wherein the neighbor notification message includes the information of the neighbor AC.

[0046] In this embodiment, the STA server is used to respectively receive and store the information of STAs synchronized by different ACs, and determine the neighbor relationship of the STAs according to the stored STA information. For example, i...

Embodiment 3

[0048] The present invention will be described in detail below through specific examples.

[0049] See Figure 4 , There are three ACs in the current network, namely AC1, AC2 and AC3. AC1 governs an AP1, AC2 governs an AP2, and AC3 governs an AP3. The STA goes online on AC1, and AC1 is the source AC of the STA. After the STA goes online, AC1 synchronizes the STA information to the STA server, and the STA server saves the STA information after receiving the STA information synchronized by AC1. After AP2 detects the STA, AP2 synchronizes the detected information of the STA to the STA server through AC2. After receiving the STA information synchronized by AC2, the STA server saves the STA information and records AC2 as the neighbor AC of the STA. At this time, the STA server discovers that the STA has added a neighbor AC, so it notifies AC1 of the information of AC2, and AC1 synchronizes the authentication information of the STA to AC2 after receiving the neighbor notification ...

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PUM

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Abstract

The invention provides a method, an auxiliary method and a device for realizing rapid roaming. The method includes: ACs (Access Controllers) receive and save information of neighbors STAs (Stations), reported by APs (Access Points) and synchronize the information of the neighbors STAs to an STA server; when any of the STAs is online, the ACs synchronize the information of the STA to the STA server and determines a neighbor AC of the STA according to the STA information saved by the STA server and synchronize authentication information of the STA to the neighbor AC so as to enable the STA to be online rapidly through the synchronized authentication information when roamed to the neighbor AC. The method and device for realizing rapid roaming based on neighbor detection synchronize the STA authentication information to the neighbor AC through neighbor detection so that the STA realizes rapid on-line when roamed to the neighbor AC and at the same time, on the basis that a comparatively high roaming rapid is maintained, data size during synchronization of STA roaming information among the AC devices is reduced.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for realizing fast roaming based on neighbor detection. Background technique [0002] An AC cluster composed of multiple ACs (Access Controllers, wireless controllers) manages multiple APs (AccessPoints, wireless access points). If the number of APs is large and the coverage area is wide, STA (Station, wireless workstation) It will connect to different APs and generate roaming behavior. In order to prevent users from perceiving network switching during roaming, it is necessary to adopt a fast roaming method with higher performance, such as selecting an AC in the AC cluster as a roaming server to store the authentication information of all STAs, see figure 1 , when the STA goes online, query the historical authentication information of the STA on the roaming server; or synchronize the historical authentication information of the STA to each AC i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/08
Inventor 王春生
Owner NEW H3C TECH CO LTD