CN101808315B - Thin AP upgrade method - Google Patents
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- CN101808315B CN101808315B CN 201010141938 CN201010141938A CN101808315B CN 101808315 B CN101808315 B CN 101808315B CN 201010141938 CN201010141938 CN 201010141938 CN 201010141938 A CN201010141938 A CN 201010141938A CN 101808315 B CN101808315 B CN 101808315B
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Abstract
The invention provides a thin access point upgrade method, which comprises that: a wireless access point transmits a message comprising upgrade version file information to be downloaded to a wireless controller; the wireless controller transmits a message comprising an address of a server, from which the wireless controller thinks the wireless access point downloads the upgrade version file, to the wireless access point according to the current load of the wireless controller per se and other upgrade version file information to be downloaded on the wireless controller or the access point; the access point analyzes the message of the server address, acquires the server address of the upgrade version file, opens a simple file transmission protocol/file transmission protocol client program, and downloads the upgrade version file from the server based on the simple file transmission protocol/file transmission protocol; the access point transmits a message expressing the success of downloading the upgrade version file to the wireless controller; and the wireless controller transmits a message which expresses that the success of the upgrade version file downloaded by the wireless access point is received to the access point.
Description
Technical field
The present invention relates to a kind of thin AP upgrade method, more specifically, relate to the thin AP upgrade method that a kind of version file can separate with AC.
Background technology
The product architecture of WLAN (wireless local area network) (WLAN) evolves to by wireless controller (AC) and the common centralized control system that consists of of (thin) AP from (fat) WAP (wireless access point) (AP) of single autonomy.The purpose of this evolution is that access control (comprise differentiate and secure communication) and mobile management, Radio Frequency Management etc. are separated from single AP, by AC centralized control in addition.
Wireless aps control is a kind of WLAN centralized control architecture frame agreement that IETF proposes with configuration protocol (CAPWAP), makes the AC can centralized control AP, and can unify control and management to channel/power of AP/roaming/security strategy etc.The characteristics of this framework are that cost is low, and management is simple, and internet security is high.
Existing CAPWAP upgrading scheme is that AP is when being in access state and the mutual version information of AC.If AC does not support the version that AP is current, then both sides will enter edition upgrading state (that is, ImageData state) and upgrade.
Fig. 1 is the diagram based on the thin AP upgrade scheme of CAPWAP that prior art is shown.
In the thin AP upgrade scheme based on CAPWAP of prior art shown in Figure 1, AP gets access to update version document information (version file name) from AC under access state.Whole technical scheme shown in Figure 1 all is based on CAPWAP and carries out.
At S101, AP sends edition data request (Image Data Request) message to AC and requires upgrading, comprises the update version document information (mainly being the version file name) that will download in the edition data request message.
At S103, AC sends edition data response (Image Data Response) message to AP, notice AP initialization is downloaded, prepare to receive the data of update version document, wherein comprise in the edition data response message upgrading relevant information (such as, the size of upgrade file and file block information).
At S105, AC sends the edition data request message to AP, comprises the data of upgrade file in the edition data request message, and this data file is by piecemeal.
At S107, AP replys the edition data response message receive the data block of update version document by CAPWAP after, represents that successfully (success) receives the data block of update version document.
At S109, AC sends the data block of the update version document of piecemeal successively to AP, and AP receives the data block of update version document and replys and represents the successfully edition data response message of reception.
At S111, after the data block of AC transmission update version document is complete, send at last the edition data request message, represent that with EOF the data block of update version document is sent.
At S113, after AP receives the edition data request message from AC, receive the update version document success, the local preservation replied the edition data response message to AC simultaneously, and expression upgrade version this paper receives successfully (success), finishes escalation process.
As mentioned above, under existing scheme, be in the inner file download function that realizes of CAPWAP agreement, increased the CAPWAP protocol complexities, and version file can only be placed on the AC.
Summary of the invention
According to an aspect of the present invention, provide a kind of thin WAP (wireless access point) upgrade method, described method comprises: (1) WAP (wireless access point) sends the message that comprises the update version document information that will download to wireless controller; (2) whether wireless controller exists the described update version document information that will download according to self on other wireless controller of preload and its preservation or WAP (wireless access point), sends to WAP (wireless access point) to comprise that wireless controller thinks which server WAP (wireless access point) should download from the message of the server address of update version document; (3) WAP (wireless access point) is resolved the message of described server address, obtain the server address of update version document, and open TFTP/file transfer protocol (FTP) client program, download update version document based on TFTP/file transfer protocol (FTP) from server; (4) WAP (wireless access point) sends the message that the update version document success is downloaded in expression to wireless controller; (5) wireless controller sends the message that expression has received the success of WAP (wireless access point) download update version document to WAP (wireless access point).
Described step (2) further comprises: if described wireless controller this locality does not have self load of the update version document that will download or described wireless controller greater than predetermined value, then whether described wireless controller inquiry exists other server with the update version document that will download, if there is other server with the update version document that will download, then described wireless controller sends the message that comprises one address in described other server with the update version document that will download to WAP (wireless access point).
Will be in ensuing description part set forth the present invention other aspect and/or advantage, some will be clearly by describing, and perhaps can learn through enforcement of the present invention.
Description of drawings
By the description of carrying out below in conjunction with the accompanying drawing that an example exemplarily is shown, above and other purpose of the present invention and characteristics will become apparent, wherein:
Fig. 1 is the diagram based on the thin AP upgrade scheme of CAPWAP that prior art is shown.
Fig. 2 is the diagram that the thin AP upgrade scheme of simplifying according to an exemplary embodiment of the present invention CAPWAP is shown.
Embodiment
Now, describe embodiments of the invention in detail, its example represents in the accompanying drawings, and wherein, identical label represents identical parts all the time.
In order to simplify the CAPWAP escalation process, the present invention has optimized the CAPWAP upgrading, utilizes fairly perfect TFTP/FTP (TFTP/file transfer protocol (FTP)) agreement to help through upgrading, and upgrade file is placed on the file server.
Fig. 2 is the diagram that the thin AP upgrade scheme of simplifying according to an exemplary embodiment of the present invention CAPWAP is shown.
AC preserves table 1 as follows in this locality:
| Filename | TFTPS | State |
Table 1
Wherein, Filename is the update version document name, and TFTPS is IP address or the domain name of tftp server, and State is the list item state, if list item is the list item of user's static configuration, then state is static; If list item dynamically adds when being the AC operation, then state is dynamic.Wherein, Filename+TFTPS is keyword.
At S201, AP sends edition data request (Image Data Request) message to AC, comprise the update version document information that to download in the edition data request message, described update version document information comprises the file download policy (that is, whether allowing other AP from oneself downloading update version document) of AP and the Filename of the upgraded version that will download.Should be appreciated that, upgraded version information is not limited to comprise above-mentioned content, can also comprise that other is about the information of update version document.
At S203, AC receives after the edition data request message, checks the local update version document whether the AP request is arranged.
(i) if there is the update version document of AP request AC this locality, then the load of described AC inspection self (namely, cpu busy percentage) whether surpasses the threshold values of setting, if the threshold values of surpass setting then execution in step (*), if do not surpass the threshold values of setting, then carry out the step S103 of prior art scheme shown in Figure 1 to S113, that is, provide update version document by described AC to AP.Should be appreciated that, described threshold value can be set up on their own or be preset by the manufacturer when AC dispatches from the factory by the user.After described AP successfully downloads update version document (namely, after S113 is finished), if the file download policy of AP is for allowing other AP from own download version, then described AC adds a list item in table 1, contents in table is: TFTPS is IP address or the domain name of described AP, Filename is the update version document name that described AP successfully downloads, and State is dynamic.This end of upgrading.
(ii) if AC this locality does not have the upgraded version of AP request, then described AC execution in step (*).
(*) AC uses the Filename look-up table 1 of the request of AP described in the S201, inquires about that unsuccessfully then this is upgraded unsuccessfully, finishes this upgrading; If Query Result is greater than 1, then from Query Result, select at random 1 list item, send edition data response (Image Data response) message by described AC to AP, comprise " TFTPS " of the list item that inquires in the message, notice AP downloads update version document from " TFTPS ".
At S205 and S207, after AP receives the edition data response message from AC, this message is resolved, the IP address of the tftp server of acquisition upgrade file or domain name are (namely, TFTPS), and open the TFTP client program, and send TFTP request (TFTPRequest) message and receive TFTP response (TFTP Response) message from tftp server to tftp server based on the TFTP agreement, download update version document.Here, using TFTP agreement download file is prior art, therefore is not described in detail.
At S209, after tftp server download update version document was finished, AP sent the edition data request message to AC at AP, and notice AC downloads the update version document success.
At S211, after AC receives the edition data request message from AP, if the file download policy of AP is for allowing other AP to download update version document from oneself, then described AC adds a list item in table 1, contents in table is: TFTPS is IP address or the domain name of described AP, Filename is the update version document name that described AP successfully downloads, and State is dynamic.Then, AC sends edition data response, this end of upgrading to AP.
Should be appreciated that, file transfer protocol (FTP) in the above-mentioned steps is not limited to download update version document based on the TFTP agreement from tftp server, can also download update version document from its corresponding server based on any suitable agreement, for example, download update version document based on File Transfer Protocol from ftp server.
By exemplary embodiment of the present invention, finish the file download by the file transfer protocol (FTP) (FTP, TFTP agreement etc.) that the file download step based on CAPWAP based in the thin AP upgrade scheme of CAPWAP with prior art replaces with by maturation, thereby simplified the CAPWAP agreement, reduced the CAPWAP protocol complexities, and version file can separate with AC, be placed on (can be a plurality of) on the file server, reduce the degree of coupling.
Although illustrated and described the present invention with reference to exemplary embodiment, it should be appreciated by those skilled in the art: in the situation that does not break away from the spirit and scope of the present invention that defined by claim, can carry out the various changes on form and the details.
Claims (2)
1. thin WAP (wireless access point) upgrade method, described method comprises:
(1) WAP (wireless access point) sends the message that comprises the update version document information that will download to wireless controller;
(2) whether wireless controller exists the described update version document information that will download according to self on other wireless controller of preload and its preservation or WAP (wireless access point), sends to WAP (wireless access point) to comprise that wireless controller thinks which server WAP (wireless access point) should download from the message of the server address of update version document;
(3) WAP (wireless access point) is resolved the message of described server address, obtain the server address of update version document, and open TFTP/file transfer protocol (FTP) client program, download update version document based on TFTP/file transfer protocol (FTP) from described server;
(4) WAP (wireless access point) sends the message that the update version document success is downloaded in expression to wireless controller; And
(5) wireless controller sends the message that expression has received the message of WAP (wireless access point) download update version document success to WAP (wireless access point),
Wherein, the described update version document information that will download comprises whether WAP (wireless access point) allows other WAP (wireless access point) to download the file download policy of update version document from oneself.
2. thin WAP (wireless access point) upgrade method as claimed in claim 1, wherein, described step (2) further comprises:
If described wireless controller this locality does not have self load of the update version document that will download or described wireless controller greater than predetermined value, then whether described wireless controller inquiry exists other server with the update version document that will download, if there is other server with the update version document that will download, then described wireless controller sends the message that comprises one address in described other server with the update version document that will download to WAP (wireless access point).
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| CN 201010141938 CN101808315B (en) | 2010-04-08 | 2010-04-08 | Thin AP upgrade method |
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| CN101808315B true CN101808315B (en) | 2013-01-23 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103634782B (en) * | 2012-08-28 | 2017-05-03 | 中兴通讯股份有限公司 | Access point (AP) version upgrade method, system and apparatus |
| CN103052141A (en) * | 2012-12-28 | 2013-04-17 | 上海寰创通信科技股份有限公司 | AP (access point) control method |
| CN103167535B (en) * | 2013-04-03 | 2015-10-14 | 大唐移动通信设备有限公司 | A kind of upgrade method for AP in wlan network |
| CN103260178B (en) * | 2013-04-28 | 2016-11-09 | 深圳市共进电子股份有限公司 | A kind of consumer WAP product detects the method for upgrading automatically |
| CN103442041A (en) * | 2013-08-14 | 2013-12-11 | 深圳市同洲电子股份有限公司 | Method, device and system for upgrading firmware of embedded device |
| CN104954409A (en) * | 2014-03-31 | 2015-09-30 | 杭州迪普科技有限公司 | AP upgrading method and device thereof |
| CN103987064B (en) * | 2014-05-09 | 2018-10-26 | 新华三技术有限公司 | Access point AP upgrade methods and device |
| CN104410960B (en) * | 2014-10-14 | 2019-03-15 | 新华三技术有限公司 | A kind of method and apparatus of LTE Fi device file load |
| CN104486421B (en) * | 2014-12-18 | 2020-02-04 | 上海斐讯数据通信技术有限公司 | Method for realizing service policy management of cloud platform of wireless service system |
| CN106792790B (en) * | 2016-03-31 | 2021-04-16 | 新华三技术有限公司 | AP upgrading method and device |
| CN105843655B (en) * | 2016-04-22 | 2018-09-18 | 中设设计集团股份有限公司 | A kind of jamproof geomagnetic parking stall detector program wireless downloading update method |
| CN106470124A (en) * | 2016-11-25 | 2017-03-01 | 杭州迪普科技股份有限公司 | A kind of upgrade method of WAP and device |
| CN113709769A (en) * | 2021-07-31 | 2021-11-26 | 新华三技术有限公司成都分公司 | AP configuration method and AP |
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