CN103391565B - A kind of wireless access integral system - Google Patents
A kind of wireless access integral system Download PDFInfo
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- CN103391565B CN103391565B CN201310293517.XA CN201310293517A CN103391565B CN 103391565 B CN103391565 B CN 103391565B CN 201310293517 A CN201310293517 A CN 201310293517A CN 103391565 B CN103391565 B CN 103391565B
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Abstract
The invention provides a kind of wireless access integral system, realize the service of terminal use's accessing Internet, comprise radio network controller and WAP, described wireless controller is operated under bridge mode, comprise DHCP? server, CAPWAP server, CAPWAP client, prove control module, monitoring module; Described WAP comprises wireless communication module, CAPWAP client. Wireless access integral system of the present invention has following features: maintenance is simple, cost is low is the solution of a kind of expansion and extension WLAN, and by force portable, and management function module is simply clear.
Description
Technical field
The present invention relates to WLAN access field, particularly a kind of WLAN terminal passes through access point apparatusBe linked into the wireless access integral system of internet.
Background technology
In traditional WLAN the inside, it is all the solution (as shown in Figure 1) that adopts fat AP: WAP(AP) be all dispersed in the inside, overlay area, radio frequency (RF) be provided to respectively separately the effectively wireless user (STA) of overlay areaSignal and user safety management and access strategy, each AP is an independently working body, between AP, fights separately,Irrelevant mutually.
Along with the development of wireless network application and deeply, this exposes as inferior problem:
1, the RF management strategy of lack of wisdom is difficult to dispose in the application scenarios of circumstance complication;
2, AP works alone, and lacks unified management means;
3, roaming is supported not enough;
For solving as above problem of traditional WLAN, industry has proposed the solution of thin AP+AC (as Fig. 2 instituteShow). This scheme is mainly to have increased network entity: AC(radio network controller), AC is used for realizing the configuration management to AP etc.Control function. And the work of AP individual responsibility RF and communication, its effect be exactly one simple, hardware based RF bottom passesSense equipment. So in this scheme, all AP have lost weight, and become thin AP.
The solution of thin AP+AC has been very ripe scheme, is all to use this scheme in numerous large-scale places. ButThis scheme also has his shortcoming, is exactly that higher and technology content Operation and Maintenance of the cost of networking is had relatively high expectations. To middle-size and small-size enterpriseIndustry or tissue, need to buy expensive AC equipment and ask professional to safeguard.
Summary of the invention
The present invention is directed to the deficiency that the solution of the thin AP+AC of current wireless local connecting system is brought, provide onePlant integrated wireless connecting system, this system adopts MiniAC+AP integrative solution.
Technical scheme of the present invention is: a kind of wireless access integral system, realize the service of terminal use's accessing Internet,Comprise radio network controller and WAP,
Described wireless controller is operated under bridge mode, comprise Dynamic Host Configuration Protocol server, WAP is configured andThe CAPWAP server, CAPWAP client of management, realize to terminal use access access that demonstration controls prove control module,Realize described WAP, terminal use's condition monitoring, collect the state of WAP, terminal use's relevant informationMonitoring module;
Described WAP comprises realizes the wireless communication module, the CAPWAP client that communicate by letter between terminal useEnd.
Further, in above-mentioned wireless access integral system: described CAPWAP server and CAPWAP clientBetween process comprise:
CAPWAP server and CAPWAP client obtain the discovery procedure of the other side's IP address mutually;
CAPWAP client joins the process of CAPWAP server;
The process that CAPWAP server is configured CAPWAP client;
Configuration integrity check process;
The process of operation and the process exiting.
Further, in above-mentioned wireless access integral system: the process of described operation comprises:
Adopt heartbeat keepalive mechanism message, realize CAPWAP server and CAPWAP client and detect whether being connected each otherNormally;
CAPWAP client is sent out and is reported the message of statistical information or critical event to CAPWAP server; CAPWAP serverFrom this message, collect WAP, terminal use's relevant information;
CAPWAP server is processed and is realized CAPWAP client basic controlling by configuration distributing;
The Internet resources that main CAPWAP server and CAPWAP client take the Capwap agreement of self separately carry outDischarge, close network and connect.
Further, in above-mentioned wireless access integral system: described configuration distributing processing comprises following message:
The message of the renewal that WAP is configured;
Remove the message of the configuration of WAP;
For configurating terminal user's message;
To the WAP message that resets;
WAP is carried out to the message of software upgrading.
Further, in above-mentioned wireless access integral system: the CAPWAP client of described wireless controller withWith the CAPWAP server communication of wireless controller, to meet configuration and the management of wireless controller to self.
Wireless access integral system of the present invention has following features:
1, maintenance is simple, cost is low
Because wireless controller (the present invention is called Mini-ac) is the product designing towards middle-size and small-size tissue, soIts management function is tended to simple and practical. Mini-ac designs on WAP chip basis in addition, hardware costJust be equal to common AP, compared with the professional AC of traditional server rank, cost is low a lot of.
2, the solution of expansion and extension WLAN
Use the Mini-ac product of the present invention's design, new solution is provided can to medium-sized and small enterprises and tissue,The integrated solution of thin AP+AC.
3, portable strong, management function module is simply clear
This product design method does not rely on concrete hardware, so in general WAP chip solution(atheros, broadcom and realtek etc.) can realize.
Below in conjunction with specific embodiment, the present invention is described in more detail.
Brief description of the drawings
Fig. 1 is fat AP access scheme schematic diagram in prior art.
Fig. 2 is thin AP+AC access scheme schematic diagram in prior art.
Fig. 3 is the integrated schematic diagram of the wireless access in the present invention.
Fig. 4 is the control flow chart of wireless controller in the present invention.
Fig. 5 is terminal use's Access Control and three layers of roaming flow chart in the present invention.
Detailed description of the invention
In the present embodiment, adopt the wireless access integrated connecting system of Mini-ac in conjunction with thin AP, for convenience of description, withIn lower description, radio network controller and WAP are called to Mini-ac and AP, user terminal is called to wireless STA.
As shown in Figure 3, in the present embodiment, include Mini-ac and AP, wherein:
1, the dhcp server functionality of IAD will be closed. Mini-ac is operated under bridge mode, is realized by Mini-acDhcp server functionality. Dynamic Host Configuration Protocol server is supported multiaddress pond, for (distributing to the wireless STA distributing IP address of AP and accessTheir gateway address is the IP address of IAD).
2, the wireless STA below AP obtains behind IP address, since the IP address that gateway address is IAD, its businessStream can not walked Mini-ac and go out, and goes out, to reach the function of user's access and shunting but walk IAD. This be becauseThe hardware of Mini-ac is common WAP, the limited and network traffics of all STA that do not load of performance.
3, Mini-ac realizes CAPWAPserver end function, and AP end is realized CAPWAPclient function, Mini-ac profitComplete the configuration and administration feature to AP by CAPWAP agreement. This partial function is by as shown in Figure 4 shown in flow chart, comprise asLower step.
(1), initialize:
Mainly that Client and Server end initialize the Capwap agreement of self separately.
(2), Discovery(finds) process:
Client broadcast address of obtaining from configuration file according to initializing when, specifies CAPWAP to control message portBe 5246, send CAPWAPdiscoveryrequest with overall socket
Message is held to Server. Server determines whether replying CAPWAP according to the vendor id in request messageDiscoveryresponse message. After client is received response message, can from this message, obtain Server endInformation (for example IP address). Discovery procedure has just completed like this.
(3), Join(adds) process
Client is found to (for example IP address) after the information of Server end, specifies CAPWAP to control message port and is5246, send CAPWAPjointrequest with overall socket
Message is held to Server. Server decides according to the software version number in request message and unit typeNo reply CAPWAPjointresponse message. And tell Client to add by jointresponse message whether to becomeMerit.
(4), Configure(configuration distributing) and the detection of Datacheck(configuration integrity) process
Client sends Configurationrequest to Server, and Serve passes through ConfigurationResponse message arranges (such as SSID, cipher mode and radio-frequency configuration etc.), concrete configuration literary composition to the configuration of ClientPart and parameter format are with reference to Capwap agreement. After configuration distributing process completes, AP just can provide wireless access to serve.
Configuration integrity testing process, for checking the configuring condition of AC to AP, sees that whether configuration distributing is successful.
(5), Run(operation) process:
This process action three parts of can classifying:
.Client the processing of end:
Heartbeat keepalive mechanism message (echorequest and echoresponse), detects for client and serverWhether connection is each other normal.
. reporting information:
Client is by the timing of WTPEventRequest message or trigger some statistical informations or the pass that report ClientKey events (association status of wireless STA). Server end is collected AP, STA relevant information from this message.
. configuration distributing processing:
The configuration that in running, AC issues to AP, at least realizes the basic controlling to Client by message below.
ConfigureUpdateRequest message, for the renewal that AP is configured.
ClearConfigurationRequest message, to remove the configuration of AP.
StationConfigurationRequest message, for configuring STA.
ResetRequest message, reset AP.
ImageDataRequest message, for AP software upgrading.
(6), Quit(exits) process:
Be mainly that Client and Server hold the Internet resources that separately the Capwap agreement of self taken to discharge, closeClose network connection etc.
4, Mini-ac need to realize CAPWAP client functionality simultaneously, and the CAPWAP server end communication of self, with fullConfiguration and the management of foot Mini-ac to self. The realization of Client and Server, with reference to figure 4, just needs on Mini-ac hereMove Client and Server process simultaneously.
5, Mini-ac realizes AP, STA condition monitoring, collects AP, STA relevant information. Implementation procedure is with reference to figure 4.
6, Mini-ac realizes the access authentication control to STA, and three layers of roaming support, as shown in Figure 5. Concrete stepsAs follows:
In the stage one, user reaches the standard grade for the first time.
Wireless STA is associated with AP1, and AP1 reports STA related information to Mini-ac.
Mini-ac obtains STA information triggers the verification process of wireless STA, can free setting when authentication mechanism is realized.
After wireless STA authentication success, Mini-ac is that this wireless STA distributes correct IP address, makes the industry of wireless STABusiness stream can be gone to IAD, and Mini-ac is equivalent to do the function that local bridge forwards. STA just has after obtaining IP address like thisInternet access rights.
In the stage two, user's roaming is reached the standard grade.
Wireless STA leaves AP1, is associated with AP2, and AP1 sends STA and goes association messages to Mini-ac, and Mini-ac is propping upHold in the situation of three layers of roaming, do not delete immediately STA, start time delay and delete processing.
AP2 sends wireless STA related information to Mini-ac, and Mini-ac upgrades the related information of STA, knows this STAOccur roaming and no longer authenticate and remove before delayed deletion processing.
Wireless STA is without again obtaining IP address, even if this STA removes to obtain IP by dhcp message, Mini-ac also canThe IP address of last time is redistributed to this STA. So the IP address of this STA remains unchanged, and the business of three layers can be carried out workDo, reach the object of three layers of roaming.
The Mini-ac designing by above method, has the following advantages:
1) maintenance is simple, cost is low
Because Mini-ac is the product designing towards middle-size and small-size tissue, so its management function is tended to simplyPractical. Mini-ac designs on WAP chip basis in addition, and hardware cost is just equal to common AP, compared withThe professional AC cost of traditional server rank is low a lot of.
2) solution of expansion and extension WLAN
Use the Mini-ac product of the present invention's design, new solution is provided can to medium-sized and small enterprises and tissue,The integrated solution of thin AP+AC.
3) portable strong, management function module is simply clear
This product design method does not rely on concrete hardware, so in general WAP chip solution(atheros, broadcom and realtek etc.) can realize.
Claims (4)
1. a wireless access integral system, realizes the service of terminal use's accessing Internet, comprises radio network controller and nothingLine access point, is characterized in that:
Described wireless controller is operated under bridge mode, comprises Dynamic Host Configuration Protocol server, WAP is configured and is managedCAPWAP server, CAPWAP client, realize and terminal use is accessed to the access that demonstration controls prove control module, realizationTo described WAP, terminal use's condition monitoring, collect the condition monitoring of WAP, terminal use's relevant informationModule;
Described WAP comprises realizes wireless communication module, the CAPWAP client of communicating by letter between terminal use;
Process between described CAPWAP server and CAPWAP client comprises:
CAPWAP server and CAPWAP client initialize the CAPWAP agreement of self separately;
CAPWAP server and CAPWAP client obtain the discovery procedure of the other side's IP address mutually;
Described discovery procedure comprises:
CAPWAP client broadcast address of obtaining from configuration file according to initializing when, specifies CAPWAP to control message endMouthful be 5246, send CAPWAPdiscoveryrequest message to CAPWAP server end with overall socket;
CAPWAP server determines whether replying CAPWAPdiscovery according to the vendor id in request messageResponse message; After CAPWAP client is received response message, can from this message, obtain CAPWAP serviceThe information of device end;
CAPWAP client joins the process of CAPWAP server;
The process that described CAPWAP client joins CAPWAP server comprises:
CAPWAP client terminal to discover is after the information of CAPWAP server end, and specifying CAPWAP to control message port is 5246, usesThe socket of the overall situation sends CAPWAPjointrequest message to CAPWAP server end; CAPWAP server basisSoftware version number in request message and unit type determine whether replying CAPWAPjointresponse message; AndTell by jointresponse message whether CAPWAP client adds successful;
The process that CAPWAP server is configured CAPWAP client;
Configuration integrity check process;
The process of operation and the process exiting.
2. wireless access integral system according to claim 1, is characterized in that: the process of described operation comprises:
Adopt heartbeat keepalive mechanism message, realize CAPWAP server and CAPWAP client and detect whether being just connected each otherOften;
CAPWAP client is sent out and is reported the message of statistical information or critical event to CAPWAP server; CAPWAP server is from thisIn message, collect WAP, terminal use's relevant information;
CAPWAP server is processed and is realized CAPWAP client basic controlling by configuration distributing;
The Internet resources that main CAPWAP server and CAPWAP client take the Capwap agreement of self separately discharge,Closing network connects.
3. wireless access integral system according to claim 2, is characterized in that: described configuration distributing processing comprisesFollowing message:
The message of the renewal that WAP is configured;
Remove the message of the configuration of WAP;
For configurating terminal user's message;
To the WAP message that resets;
WAP is carried out to the message of software upgrading.
4. wireless access integral system according to claim 1, is characterized in that: described wireless controllerCAPWAP client with and the CAPWAP server communication of wireless controller, to meet configuration and the pipe of wireless controller to selfReason.
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| CN107493581A (en) * | 2016-06-13 | 2017-12-19 | 上海技腾通讯设备有限公司 | Wireless access point device access system and cut-in method |
| CN106255089B (en) * | 2016-08-26 | 2019-09-17 | 杭州迪普科技股份有限公司 | A kind of method and apparatus of radio three layer roaming |
Citations (3)
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| CN102420880A (en) * | 2011-12-15 | 2012-04-18 | 福建星网锐捷网络有限公司 | Internet protocol (IP) address management method, system and device |
| EP2469961A1 (en) * | 2010-01-13 | 2012-06-27 | Huawei Technologies Co., Ltd. | Method, apparatus and network system for tunnel establishment |
| CN103024738A (en) * | 2011-09-26 | 2013-04-03 | 中兴通讯股份有限公司 | Seaming service shunt control implementation method and system |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2469961A1 (en) * | 2010-01-13 | 2012-06-27 | Huawei Technologies Co., Ltd. | Method, apparatus and network system for tunnel establishment |
| CN103024738A (en) * | 2011-09-26 | 2013-04-03 | 中兴通讯股份有限公司 | Seaming service shunt control implementation method and system |
| CN102420880A (en) * | 2011-12-15 | 2012-04-18 | 福建星网锐捷网络有限公司 | Internet protocol (IP) address management method, system and device |
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