CN103167535A - Method for upgrading AP (access point) in WLAN (wireless local area network) - Google Patents
Method for upgrading AP (access point) in WLAN (wireless local area network) Download PDFInfo
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- CN103167535A CN103167535A CN2013101164023A CN201310116402A CN103167535A CN 103167535 A CN103167535 A CN 103167535A CN 2013101164023 A CN2013101164023 A CN 2013101164023A CN 201310116402 A CN201310116402 A CN 201310116402A CN 103167535 A CN103167535 A CN 103167535A
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Abstract
The invention provides a method for upgrading an AP (access point) in a WLAN (wireless local area network). The method includes the steps: S1, transmitting an upgrading request; S2, determining whether to upgrade or not according to the upgrading request and returning an upgrading response message; S3, transmitting a first image data request to an AC (access controller) by the AP when determining that the AP is upgraded; S4, returning first image data response to the AP according to the first image data request by the AC, and transmitting a second image data request including an address, a username and a password of an Ftp (file transfer protocol) server on the AC; S5, calling an Ftp client and connecting the Ftp server to obtain download data according to the second image data request by the AP; and S6, upgrading the AP by the aid of the download data. Data transmission speed and reliability are improved by improving the interactive process of the AP and the AC.
Description
Technical field
The present invention relates to the radio network technique field, relate in particular to a kind of upgrade method for wlan network AP.
Background technology
Along with the development of WLAN technology and the requirement in commercialization, WAP (wireless access point) has progressively developed thin AP by fat AP, has introduced simultaneously new network element-wireless controller (AC).Configuration management and upgrading for a large amount of AP can be controlled by AC; So just, solved management, monitoring and controlled the challenge that a large amount of AP face.AC also can manage the version of AP simultaneously, and AP can download up-to-date version from AC, to satisfy the needs of edition upgrading; Now the AP escalation process is described below:
According in RFC5415 and middle mobile standard to the description of thin AP upgrade, the upgrading of AP is divided into two kinds of situations: a kind of situation is the upgrading in access procedure, concrete upgrading flow process in this kind situation as shown in Figure 1, another kind of situation is the upgrading under the run state, and the concrete upgrading flow process in this kind situation as shown in Figure 2.
From the upgrading flow process of above-mentioned two situations as can be known, the mode that the data of prior art send is to use a request, a mode of replying; AC carries data by Image Data Request and sends to AP, after receiving, AP by Image Data Response, result is returned to AC, AC is according to the response results of receiving, if judge success send next packet, failed continuation retransmits, until receive that successful reply descends a packet again.What can find out whole downloading process use is a kind of process of Stop-wait.
Pay close attention to the agreement composition of capwap, according to as shown in Figure 3, to the definition of RFC5415, contrast capwap message structure and the capwap version of describing are before downloaded flow process, can obtain following conclusion again:
1) .capwap is carried on the udp agreement, and the udp control function that is free from mistakes itself if using the udp agreement to carry out file downloads, needs upper-layer protocol to have error correction, for example: the tftp agreement; And the capwap agreement although it has used the Stop-wait process that is similar to tftp in carrying out the version downloading process, has lacked the verification to the data correctness, causes the unreliable of the data downloaded;
2). on transmission speed, although udp wants fast than tcp speed, but it is to send the mode of replying that capwap is carried on what carry out on the udp agreement that version file when transmission use, after namely sending a packet, send and wait for that the recipient responds, after obtaining recipient's response, in the transmission of carrying out next packet, get greatly with regard to the transmission speed that causes like this and reduce, send the transmission speed of data far below tcp by windowing mechanism.
Summary of the invention
(1) technical problem
The problem to be solved in the present invention is: in the version downloading process, and the reliability of transfer of data and speed issue.
(2) technical scheme
The invention provides a kind of upgrade method for wlan network AP, the method comprises the following steps:
S1. send upgrade request;
S2. determine whether and to upgrade according to described upgrade request, and return to the upgrading response message;
S3.AP sends first view data request to AC according to described upgrading response message when determining upgrading;
S4.AC returns to the first view data response according to described the first view data request to AP side, and sends the second view data request to AP, and this second view data request comprises address and the user name password of the upper Ftp server of AC;
S5.AP connects described Ftp server to obtain downloading data according to described the second view data request call Ftp client;
S6.AP utilizes described downloading data to upgrade.
Optionally, described upgrade request is included in access request.
Optionally, in described step S1, described access request is carried the current version information of AP.
Optionally, described step S2 further comprises:
S21.AC obtains the current version information of AP according to described access request;
S22. the version of the AP expectation of the upper configuration of the version information that AP is current and AC compares, if find that inconsistent generation includes the access response message of the version indication of AC.
Optionally, described upgrade request is included in the config update request.
Optionally, in described step S1, the current version information of AP is carried in described config update request.
Optionally, described step S2 further comprises:
S21 ' .AC is according to the current version information of described config update acquisition request AP;
S22 '. the version of the AP expectation of the upper configuration of the version information that AP is current and AC compares, if find that inconsistent generation includes the access response message of the version indication of AC.
Optionally, in described step S5, use Transmission Control Protocol to obtain described downloading data.
Optionally, in described step S6, carry out described upgrading by the management software that is independent of AP and AC.
Optionally, described step S6 further comprises:
S61. downloading data obtain complete after, AP notice is independent of the management software of AP and AC and upgrades;
S62. upgrade complete after, described management software notice AP.
Optionally, also comprise after step S6:
S7. after upgrading was complete, AP sent the second view data response to AC;
S8.AC is according to described the second view data response notice ap reboot.
(3) technique effect
The present invention has improved data transmission bauds and reliability by the interaction flow that improves AP and AC.
Description of drawings
Fig. 1 represents the upgrading reciprocal process in access procedure in prior art;
Fig. 2 represents the upgrading reciprocal process in running in prior art;
Fig. 3 represents the composition of capwap agreement in prior art;
Fig. 4 represents the flow chart of upgrade method of the present invention;
Fig. 5 represents the upgrading flow chart in access procedure in the present invention;
Fig. 6 represents the upgrading reciprocal process in access procedure in the present invention;
Upgrading flow chart during Fig. 7 represents to invent in running;
Fig. 8 represents the upgrading reciprocal process in running in the present invention.
Embodiment
For solving in the version downloading process, the integrity problem of transfer of data, a kind of method is agreement, when the capwap receive data, correctness to data is carried out verification, but the capwap agreement does not have so similar standard, and oneself designs and completes, be theoretically unsound, correctness and performance etc. all can not be guaranteed effectively; Another kind of way, service-strong bearing protocol Tcp transmits, and version is downloaded and will be abandoned the capwap agreement like this, uses the download protocol of tcp carrying instead.Simultaneously on transmission rate, what Tcp used is windowing mechanism, and capwap uses the Stop-wait process of similar tftp, also fast than capwap speed of download on transmission rate like this.
For the prior art standard in the procedure definition that exists aspect version management the defective on imperfect and implementation, I take charge of on the basis of standard, the solution of a complex optimum of proposition.
At first in the message interaction process of existing standard, in order to improve the success rate of upgrading, be optimized on the basis of not changing framework, redesigned the flow process that version is downloaded, redesigned structure and the interaction flow of Image Data Request message in capwap.Image Data Request message has AP to mail to AC, also has AC to mail to AP's; Wherein AP-mails to the message of AC, is that AP notice AC will initiate upgrading, and this programme and original standard are consistent, and are all the version numbers that reports image file; And AC mails to the Image Data Request of AP, is revised as the address of the upper Ftp server of AC by original edition data, also has simultaneously user name, password, path etc.
Embodiment 1:
The invention provides a kind of upgrade method for wlan network AP, as shown in Figure 4, the method comprises the following steps:
S1. send upgrade request;
S2. determine whether and to upgrade according to described upgrade request, and return to the upgrading response message;
S3.AP sends first view data request to AC according to described upgrading response message when determining upgrading;
S4.AC returns to the first view data response according to described the first view data request to AP side, and sends the second view data request to AP, and this second view data request comprises address and the user name password of the upper Ftp server of AC;
S5.AP connects described Ftp server to obtain downloading data according to described the second view data request call Ftp client;
S6.AP utilizes described downloading data to upgrade.
Optionally, described upgrade request is included in access request.
Optionally, in described step S1, described access request is carried the current version information of AP.
Optionally, described step S2 further comprises:
S21.AC obtains the current version information of AP according to described access request;
S22. the version of the AP expectation of the upper configuration of the version information that AP is current and AC compares, if find that inconsistent generation includes the access response message of the version indication of AC.
Optionally, described upgrade request is included in the config update request.
Optionally, in described step S1, the current version information of AP is carried in described config update request.
Optionally, described step S2 further comprises:
S21 ' .AC is according to the current version information of described config update acquisition request AP;
S22 '. the version of the AP expectation of the upper configuration of the version information that AP is current and AC compares, if find that inconsistent generation includes the access response message of the version indication of AC.
Optionally, in described step S5, use Transmission Control Protocol to obtain described downloading data.
Optionally, in described step S6, carry out described upgrading by the management software that is independent of AP and AC.
Optionally, described step S6 further comprises:
S61. downloading data obtain complete after, AP notice is independent of the management software of AP and AC and upgrades;
S62. upgrade complete after, described management software notice AP.
Optionally, also comprise after step S6:
S7. after upgrading was complete, AP sent the second view data response to AC;
S8.AC is according to described the second view data response notice ap reboot.
Embodiment 2:
It is a kind of for the upgrade method of wlan network AP in access procedure that the present embodiment specifically provides, and as shown in Figure 5, the method comprises the following steps:
S1 ' .AP sends access request to wireless controller AC;
S2 ' .AC determines whether and will upgrade according to described access request, and returns to the access response message;
S3 ' .AP sends first view data request to AC according to described access response message when determining upgrading;
S4 ' .AC returns to the first view data response according to described the first view data request to AP side, and sends the second view data request to AP, and this second view data request comprises address and the user name password of the upper Ftp server of AC;
S5 ' .AP connects described Ftp server to obtain downloading data according to described the second view data request call Ftp client;
S6 ' .AP utilizes described downloading data to upgrade.
Optionally, in described step S6 ', carry out described upgrading by the management software that is independent of AP and AC.
Optionally, in described step S1 ', described transmission access request is carried the current version information of AP.
Optionally, described step S2 ' further comprises:
S2 ' 1.AC obtains the current version information of AP according to described access request;
S2 ' the 2. version of the AP expectation of version information that AP is current and the upper configuration of AC compares, if find inconsistent generate the access response message of the version indication that includes AC.
Optionally, in described step S5, use Transmission Control Protocol to obtain described downloading data.
Optionally, described step S6 ' further comprises:
S6 ' 1. downloading data obtain complete after, AP notice is independent of the management software of AP and AC and upgrades;
S6 ' 2. upgrade complete after, described management software notice AP.
Optionally, also comprise after step S6:
S7 '. after upgrading was complete, AP sent the second view data response to AC;
S8 ' .AC is according to described the second view data response notice ap reboot.
Particularly, as shown in Figure 6, AP can carry the current version information of AP by Join Request in adding the process of AC, AC obtain after this information can and the version expected of the AP of the upper configuration of AC compare, if found inconsistent after take back the version indication of AC in the Join Response that replys, AP needs to determine whether upgrade by the contrast version information equally.If need upgrading, AP will send Image data request message to AC, carry version indication etc. in cell, and AC replys Image data response; After AC obtains the upgrade request of AP, can send out image data request, carry the ip address of AC side ftp server in cell, and username and password; After AP obtains the address and user name password of ftp server, will call AP side ftp client(ftp client) connection ftpserver(ftp server) download version; Download and notify third party's management software that AP is upgraded after complete, after edition upgrading was finished AP and reported AC by Image data response, AC notify ap reboot, and then AP can pass through Reset Response message feedback to AC after restarting.
Embodiment 3:
Embodiment 2 has described the upgrading in AP access AC process, escalation process at the Run state is the version indication of carrying by Config Update Request, initiate the upgrading flow process, can enter equally afterwards in brand-new download flow process, process is consistent with the situation that embodiment 2 describes, as shown in Figure 7, idiographic flow is:
S1 ' ' .AP sends the config update request to wireless controller AC;
S2 ' ' .AC determines whether and will upgrade according to described config update request, and returns to the config update response message;
S3 ' ' .AP sends three view data request to AC according to described config update response message when determining upgrading;
S4 ' ' .AC returns to the 3rd view data response according to described the 3rd view data request to AP side, and sends the 4th view data request to AP, and the 4th view data request comprises address and the user name password of the upper Ftp server of AC;
S5 ' ' .AP connects described Ftp server to obtain downloading data according to described the 4th view data request call Ftp client;
S6 ' ' .AP utilizes described downloading data to upgrade.
Optionally, in described step S6 ' ', carry out described upgrading by the management software that is independent of AP and AC.
Optionally, in described step S1 ' ', described transmission access request is carried the current version information of AP.
Optionally, described step S2 ' ' further comprises:
S2 ' ' 1.AC obtains the current version information of AP according to described transmission access request;
S2 ' ' the 2. version of the AP expectation of version information that AP is current and the upper configuration of AC compares, if find inconsistent generate the access response message of the version indication that includes AC.
Optionally, in described step S5 ' ', use Transmission Control Protocol to obtain described downloading data.
Optionally, described step S6 ' ' further comprises:
S6 ' ' 1. downloading data obtain complete after, AP notice is independent of the management software of AP and AC and upgrades;
S6 ' ' 2. upgrade complete after, described management software notice AP.
Optionally, also comprise after step S6 ':
S7 ' '. after upgrading was complete, AP sent the 4th view data response to AC;
S8 ' ' .AC is according to described the 4th view data response notice ap reboot.
Particularly, as shown in Figure 8, can carry the current up-to-date version information of AC by Config update request in running status, AP obtain after this information can and the version expected of the upper current AP of AP compare, if found inconsistent after take back the version indication of AP in the Config Update Response that replys, AP determines whether upgrade by the contrast version information.If need upgrading, AP will send Image data request message to AC, carry version indication etc. in cell, and AC replys Image data response; After AC obtains the upgrade request of AP, can send out image data request, carry the IP address of ftp server in cell, and username and password; After AP obtains the address and user name password of ftp server, AP side ftp client connection ftp server download version will called; Download and notify third party's management software that AP is upgraded after complete, after edition upgrading was finished AP and reported AC by Image data response, AC notify ap reboot, and then AP can pass through Reset Response message feedback to AC after restarting.
by being above-described embodiment 1, 2, 3 the present invention can well solve the technical problem that prior art exists, at first the bearing protocol of using becomes tcp by udp, error control is just transferred to transport network layer and is completed like this, in the situation that the data error control has not been guaranteed the reliability of edition data in capwap, the window transmission mode that next Tcp uses, in the Stop-wait process of also using during in transfer of data faster than capwap on speed, downloading process gives the Ftp third party software to control the exploitation of also having simplified widely the Capwap agreement can to control fully on the other hand.
Above execution mode only is used for explanation the present invention; and be not limitation of the present invention; the those of ordinary skill in relevant technologies field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (11)
1. a upgrade method that is used for wlan network AP, is characterized in that, the method comprises the following steps:
S1. send upgrade request;
S2. determine whether and to upgrade according to described upgrade request, and return to the upgrading response message;
S3.AP sends the first view data request to AC when determining upgrading;
S4.AC returns to the first view data response according to described the first view data request to AP side, and sends the second view data request to AP, and this second view data request comprises address and the user name password of the upper Ftp server of AC;
S5.AP connects described Ftp server to obtain downloading data according to described the second view data request call Ftp client;
S6.AP utilizes described downloading data to upgrade.
2. upgrade method as claimed in claim 1, be further characterized in that, described upgrade request is included in access request.
3. upgrade method as claimed in claim 2, be further characterized in that, in described step S1, described access request is carried the current version information of AP.
4. upgrade method as claimed in claim 3, be further characterized in that, described step S2 further comprises:
S21.AC obtains the current version information of AP according to described access request;
S22. the version of the AP expectation of the upper configuration of the version information that AP is current and AC compares, if find that inconsistent generation includes the access response message of the version indication of AC.
5. upgrade method as claimed in claim 1, be further characterized in that, described upgrade request is included in the config update request.
6. upgrade method as claimed in claim 5, be further characterized in that, in described step S1, the current version information of AP is carried in described config update request.
7. upgrade method as claimed in claim 6, be further characterized in that, described step S2 further comprises:
S21 ' .AC is according to the current version information of described config update acquisition request AP;
S22 '. the version of the AP expectation of the upper configuration of the version information that AP is current and AC compares, if find that inconsistent generation includes the access response message of the version indication of AC.
8. as the described upgrade method of claim 2-7 any one, be further characterized in that, in described step S5, use Transmission Control Protocol to obtain described downloading data.
9. as the described upgrade method of claim 2-7 any one, be further characterized in that, in described step S6, carry out described upgrading by the management software that is independent of AP and AC.
10. upgrade method as claimed in claim 9, be further characterized in that, described step S6 further comprises:
S61. downloading data obtain complete after, AP notice is independent of the management software of AP and AC and upgrades;
S62. upgrade complete after, described management software notice AP.
11. as the described upgrade method of claim 2-7 any one, be further characterized in that, also comprise after step S6:
S7. after upgrading was complete, AP sent the second view data response to AC;
S8.AC is according to described the second view data response notice ap reboot.
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| CN103987064A (en) * | 2014-05-09 | 2014-08-13 | 杭州华三通信技术有限公司 | Access point (AP) upgrading method and device |
| CN107645408A (en) * | 2017-08-18 | 2018-01-30 | 上海斐讯数据通信技术有限公司 | Wireless aps batch upgrade managing device |
| WO2018165908A1 (en) * | 2017-03-15 | 2018-09-20 | Aruba Networks, Inc. | Upgrading access points |
| CN109669699A (en) * | 2018-12-11 | 2019-04-23 | 迈普通信技术股份有限公司 | Application program distribution method, AC, AP and Radio Network System |
| TWI713351B (en) * | 2019-07-09 | 2020-12-11 | 啟碁科技股份有限公司 | Configuration synchronization method and mesh network system |
| CN112104795A (en) * | 2019-06-17 | 2020-12-18 | 杭州海康威视数字技术股份有限公司 | Analog camera and image acquisition system |
| 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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| CN103987064A (en) * | 2014-05-09 | 2014-08-13 | 杭州华三通信技术有限公司 | Access point (AP) upgrading method and device |
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| CN112104795A (en) * | 2019-06-17 | 2020-12-18 | 杭州海康威视数字技术股份有限公司 | Analog camera and image acquisition system |
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