CN102907032A - CAPWAP protocol-based WLAN WTP firmware version upgrading method, device and system - Google Patents
CAPWAP protocol-based WLAN WTP firmware version upgrading method, device and system Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/34—Network arrangements or protocols for supporting network services or applications involving the movement of software or configuration parameters
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- G06F8/65—Updates
- G06F8/654—Updates using techniques specially adapted for alterable solid state memories, e.g. for EEPROM or flash memories
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- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
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- H04W80/06—Transport layer protocols, e.g. TCP [Transport Control Protocol] over wireless
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- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
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Abstract
The invention relates to the communication technology field and provides a CAPWAP protocol-based WLAN WTP firmware version upgrading method, a device and a system, solving the problem of reduced WALN WTP performance as a result of long time for upgrading of the WLAN WTP firmware version. The method may comprise the following steps of sending an upgrade request by a wireless access device to a controller; receiving a first upgrade response sent by the controller, wherein the first upgrade response includes a preset value higher than or equal to 2; receiving mapping files corresponding to the identification information until the number of the received mapping files is equal to the integral multiple of the preset value, or sending a second upgrade response to the controller when the number is not equal to the integral multiple of the preset value and the mapping files are completely sent; and storing and upgrading all the received mapping files after the mapping files are all sent. The method can be applied to interval version upgrading.
Description
Technical field
The present invention relates to communication technical field, relate in particular to the Points based on CAPWAP(Control And Provisioning of Wireless Access, the control of WAP (wireless access point) and configuration) the WLAN WTP(Wireless Local Area Networks Wireless Termination Points of agreement, the WLAN (wireless local area network) WAP (wireless access point)) methods, devices and systems of firmware version upgrade.
Background technology
WTP is adding AC(Access Controller, controller) after, detect AC and whether support the firmware version of self, if do not support, then need the firmware version of WTP is upgraded.
Fixedly the method for version updating can comprise:
1.WTP send update request to AC, update request comprises the image file identification information that firmware version to be updated comprises;
2.AC send the renewal response to WTP;
3.AC send the image file of preset length to WTP;
4.WTP after receiving the image file of preset length, send and receive response to AC; Repeating step 2 is to step 3, until the image file that firmware version to be updated comprises has been sent out; Wherein, when AC sent the image file of last preset length to WTP, the image file of also notifying this preset length of WTP was the image file of last preset length;
Respond 5.WTP preserve the image file that receives and send final updated to AC.
State in realization in the process based on the WLAN WTP firmware version upgrade of CAPWAP agreement, the inventor finds that there are the following problems at least in the prior art: the time average of WLAN WTP firmware version upgrade is 15 minutes, the time of upgrading is longer, has reduced the performance of WLAN WTP.
Summary of the invention
Embodiments of the invention provide a kind of method, device, system of the WLAN WTP firmware version upgrade based on the CAPWAP agreement, solved based on the time of the WLAN WTP firmware version upgrade of CAPWAP agreement longlyer, caused reducing the problem of the performance of WLAN WTP.
For achieving the above object, embodiments of the invention adopt following technical scheme:
On the one hand, provide a kind of method of the WLAN WTP firmware version upgrade based on the CAPWAP agreement, comprising:
Radio reception device sends update request to controller, and described update request comprises image file identification information to be updated, and described controller is used for controlling described radio reception device;
Receive the first renewal response that described controller sends, described first upgrades response comprises preset value, and described preset value is more than or equal to 2;
Receive image file corresponding to described identification information, until the quantity of the image file that receives is when equaling the integral multiple of described preset value, perhaps, if being not equal to the integral multiple of described preset value and image file, described quantity is sent out when complete, send second to described controller and upgrade response, be used to indicate image file and be not sent out completely if described second upgrades response, then continue to send image file corresponding to described identification information that does not send to described radio reception device;
When image file be sent out complete after, store and upgrade the image file that all receive.
In addition, also provide a kind of method of the WLAN WTP firmware version upgrade based on the CAPWAP agreement, comprising:
Controller receives the update request that radio reception device sends, and described update request comprises image file identification information to be updated, and described controller is used for controlling described radio reception device;
Send first to described radio reception device and upgrade response, described first upgrades response comprises preset value, and described preset value is more than or equal to 2;
Send image file corresponding to described identification information to described radio reception device, until the quantity of the image file that sends equals the integral multiple of described preset value, perhaps, be sent out complete if described quantity is not equal to integral multiple and the image file of described preset value;
What receive that described radio reception device sends second upgrades response, if described second upgrade response and be used to indicate image file and be not sent out completely, then continues to send image file corresponding to described identification information that does not send to described radio reception device.
On the other hand, provide a kind of device of the WLAN WTP firmware version upgrade based on the CAPWAP agreement, comprising: radio reception device and controller.
A kind of radio reception device comprises:
Processor is used for sending update request to controller, and described update request comprises image file identification information to be updated, and described controller is used for controlling described radio reception device; Receive the first renewal response that described controller sends, described first upgrades response comprises preset value, and described preset value is more than or equal to 2; Receive image file corresponding to described identification information, until the quantity of the image file that receives is when equaling the integral multiple of described preset value, perhaps, if being not equal to the integral multiple of described preset value and image file, described quantity is sent out when complete, send second to described controller and upgrade response, be used to indicate image file and be not sent out completely if described second upgrades response, then continue to send image file corresponding to described identification information that does not send to described radio reception device;
Memory is used for when and after image file is sent by described processor, stores and upgrades the image file that all receive.
A kind of controller comprises:
Processor is used for receiving the update request that radio reception device sends, and described update request comprises image file identification information to be updated, and described controller is used for controlling described radio reception device; Send first to described radio reception device and upgrade response, described first upgrades response comprises preset value, and described preset value is more than or equal to 2; Send image file corresponding to described identification information to described radio reception device, until the quantity of the image file that sends equals the integral multiple of described preset value, perhaps, be sent out complete if described quantity is not equal to integral multiple and the image file of described preset value; What receive that described radio reception device sends second upgrades response, if described second upgrade response and be used to indicate image file and be not sent out completely, then continues to send image file corresponding to described identification information that does not send to described radio reception device;
Memory is used for storing image file corresponding to identification information that update request that described processor receives comprises.
Again on the one hand, provide a kind of system of the WLAN WTP firmware version upgrade based on the CAPWAP agreement, comprising:
Radio reception device is used for sending update request to controller, and described update request comprises image file identification information to be updated, and described controller is used for controlling described radio reception device; Receive the first renewal response that described controller sends, described first upgrades response comprises preset value, and described preset value is more than or equal to 2; Receive image file corresponding to described identification information, until the quantity of the image file that receives is when equaling the integral multiple of described preset value, perhaps, if being not equal to the integral multiple of described preset value and image file, described quantity is sent out when complete, send second to described controller and upgrade response, be used to indicate image file and be not sent out completely if described second upgrades response, then continue to send image file corresponding to described identification information that does not send to described radio reception device; When and after image file is sent by described processor, store and upgrade the image file that all receive;
Controller is used for receiving the described update request that described radio reception device sends; Send described first to described radio reception device and upgrade response; Send image file corresponding to described identification information to described radio reception device, until the quantity of the image file that sends equals the integral multiple of described preset value, perhaps, be sent out complete if described quantity is not equal to integral multiple and the image file of described preset value; Receive described the second renewal response that described radio reception device sends.
The method based on the WLAN WTP firmware version upgrade of CAPWAP agreement that the embodiment of the invention provides, device, system, after adopting such scheme, only have the quantity of the image file that receives when radio reception device to equal the integral multiple of preset value, perhaps, the quantity of the image file that receives is not equal to the integral multiple of preset value and image file and is sent out when complete, just send second to controller and upgrade response, second upgrades response is used to indicate the image file that controller does not send to radio reception device continuation transmission, reduce radio reception device and sent the quantity that the second renewal responds to controller, shorten the time based on the WLAN WTP firmware version upgrade of CAPWAP agreement, increased the performance of WLAN WTP.
Description of drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the invention, the accompanying drawing of required use was done to introduce simply during the below will describe embodiment, apparently, accompanying drawing in the following describes only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The method flow diagram of a kind of WLAN WTP firmware version upgrade based on the CAPWAP agreement that Fig. 1 provides for present embodiment;
The another kind that Fig. 2 provides for present embodiment is based on the method flow diagram of the WLAN WTP firmware version upgrade of CAPWAP agreement;
Fig. 3 is the schematic flow sheet of method shown in Figure 2;
A kind of method flow diagram based on the WLAN WTP firmware version upgrade of CAPWAP agreement take controller as executive agent that Fig. 4 provides for present embodiment;
A kind of network access equipment structural representation that Fig. 5 provides for present embodiment;
A kind of controller architecture schematic diagram that Fig. 6 provides for present embodiment;
The system configuration schematic diagram of a kind of WLAN WTP firmware version upgrade based on the CAPWAP agreement that Fig. 7 provides for present embodiment.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
The radio reception device that present embodiment provides can for but be not limited to WTP etc.; Controller can for but be not limited to AC etc.
Behind WTP access AC, the firmware version that moves as WTP is not the firmware version that AC supports, then WTP need to download executable firmware version from AC.
Concrete, when WTP receives the Join response(registration response that AC sends) behind the message, judge whether AC supports the firmware version of oneself.If AC does not support the firmware version of oneself, just carry out firmware version upgrade.
The image file that WTP can comprise by the firmware version that receives the AC transmission, realize the firmware updating version, AC is after the update request that receives the WTP transmission, send the image file of certain-length to WTP, that is to say, AC may send more than or equal to behind twice the image file to WTP, and the image file that firmware version to be upgraded could be comprised is sent, and namely finishes the upgrading of firmware version.
In the prior art, AC is every behind WTP transmission mapped file, and WTP all sends second to AC and upgrades response, so that AC continues to send remaining mapped file to WTP.Like this, may cause the time of WTP renewal firmware version longer, reduce the performance of WTP.
In order to address the above problem, present embodiment provides a kind of method of the WLAN WTP firmware version upgrade based on the CAPWAP agreement, and the executive agent of the method is radio reception device, as shown in Figure 1, can comprise:
101, radio reception device sends update request to controller, and update request comprises image file identification information to be updated, and controller is used for the control radio reception device;
102, receive the first renewal response that controller sends, first upgrades response comprises preset value, and preset value is more than or equal to 2;
103, receive image file corresponding to identification information, until the quantity of the image file that receives is when equaling the integral multiple of preset value, perhaps, if being not equal to the integral multiple of preset value and image file, quantity is sent out when complete, send second to controller and upgrade response, be used to indicate image file and be not sent out completely if second upgrades response, then continue to send image file corresponding to identification information that does not send to radio reception device;
104, when image file be sent out complete after, store and upgrade the image file that all receive.
After adopting such scheme, only have the quantity of the image file that receives when radio reception device to equal the integral multiple of preset value, perhaps, the quantity of the image file that receives is not equal to the integral multiple of preset value and image file and is sent out when complete, just send second to controller and upgrade response, second upgrades response is used to indicate the image file that controller does not send to radio reception device continuation transmission, reduce radio reception device and sent the quantity that the second renewal responds to controller, shorten the time based on the WLAN WTP firmware version upgrade of CAPWAP agreement, increased the performance of WLAN WTP.
Present embodiment provides the method for another kind of WLAN WTP firmware version upgrade based on the CAPWAP agreement, and the further expanding of method shown in Figure 1 during the method as shown in Figure 2, can comprise:
201, radio reception device sends update request to controller, and update request comprises image file identification information to be updated, and controller is used for the control radio reception device.
As an embodiment of the present embodiment, update request can for but be not limited to: Image Data Request (Image Identifier=filename, Initiate Download, Image Capability).
Wherein, the identification information of Image Identifier and the filename image file that can comprise for firmware version to be upgraded; Initiate Download can be used to indicate controller and send image file corresponding to identification information to network access equipment; Image Capability can be used to indicate controller sends mode from image file to network access equipment.
Image Capability indicating controller can include but not limited to the mode that network access equipment sends image file: one to one mode, one-to-many manner etc.
After mode can send an image file to network access equipment for: controller is every one to one, network access equipment needs after controller transmission the second renewal response, controller just continues to send an image file that does not send to network access equipment, above-mentioned steps is carried out in circulation, finishes until mapped file corresponding to identification information is sent out;
After one-to-many manner can send a preset value image file to network access equipment for: controller is every, network access equipment needs after controller transmission the second renewal response, controller just continues the preset value image file that do not send to network access equipment, above-mentioned steps is carried out in circulation, finishes until mapped file corresponding to identification information is sent out.
As shown in Figure 3, can send 3 mapped files to network access equipment for controller is every, and network access equipment receive these 3 image files and to controller send second upgrade response after, controller continues to send 3 image files that remaining does not send to network access equipment, the circulation above-mentioned steps is finished until image file is sent out.
202, receive the first renewal response that controller sends, first upgrades response comprises preset value, and preset value is more than or equal to 2.
As an embodiment of the present embodiment, first upgrade response can for but be not limited to Image Data Response (Result Code=Success, Image Information={size, ha sh=0}, Image Capability).
Wherein, size can be the length of a mapped file of every transmission; Image Capability can comprise preset value.
Further, update request can also comprise indication information, and indication information is used to indicate controller configuration preset value.
As an embodiment of the present embodiment, the form of Image Capability can for:
Image Capability Length: the length of expression Image Capability Data Value;
Image Capability Data Value can comprise: Image Upgrade Response Mode and Image Upgrade Response Count.
The form of Image Upgrade Response Mode can for:
The upgrading mode that Image Upgrade Response Mode be used for to describe firmware version is mode one to one, or one-to-many manner.
The form of Image Upgrade Response Count can for:
The value of Image Upgrade Response Count can be preset value.
Present embodiment is not construed as limiting the value of the information that Image Capability comprises, and can set according to actual needs, for example, can set according to agreement, does not repeat them here.
Present embodiment is not construed as limiting the method for controller configuration preset value, can set according to actual needs, for example, controller can be according to the network bandwidth configuration preset value of controller access, preset value can for but be not limited to integer more than or equal to 2, do not repeat them here.
203, receive image file corresponding to identification information, until the quantity of the image file that receives is when equaling the integral multiple of preset value, perhaps, if being not equal to the integral multiple of preset value and image file, quantity is sent out when complete, send second to controller and upgrade response, be used to indicate image file and be not sent out completely if second upgrades response, then continue to send image file corresponding to identification information that does not send to radio reception device.
The image file that firmware version to be upgraded comprises may once be sent completely to WTP, may divide at least twice to send to WTP.
As an embodiment of the present embodiment, shown in Figure 3 is to need AC to send 6 different mapped files to WTP, just can finish the upgrading of firmware version.
Wherein, mapped file can comprise with but be not limited among the Image Data Response (Image Data=Data).
204, when image file be sent out complete after, store and upgrade the image file that all receive.
When controller sends to the Image Data Response that last includes mapped file to network access equipment, can carry the mapped file that carries among this Image Data Response of sign among this Image Data Response and be the identification information of last mapped file.For example, can be Image Data Request (Image Information={size, hash}, Image Data=EOF), wherein, EOF can be for identifying the identification information that the mapped file that carries among this Image Data Response is last mapped file.
After adopting such scheme, only have the quantity of the image file that receives when radio reception device to equal the integral multiple of preset value, perhaps, the quantity of the image file that receives is not equal to the integral multiple of preset value and image file and is sent out when complete, just send second to controller and upgrade response, second upgrades response is used to indicate the image file that controller does not send to radio reception device continuation transmission, reduce radio reception device and sent the quantity that the second renewal responds to controller, shorten the time based on the WLAN WTP firmware version upgrade of CAPWAP agreement, increased the performance of WLAN WTP.
Present embodiment provides the method for another kind based on the WLAN WTP firmware version upgrade of CAPWAP agreement, and the executive agent of the method can be controller, as shown in Figure 4, can comprise:
401, controller receives the update request that radio reception device sends, and update request comprises image file identification information to be updated, and controller is used for the control radio reception device;
Further, update request also comprises indication information, and indication information is used to indicate the controller preset value;
402, send first to radio reception device and upgrade response, first upgrades response comprises preset value, and preset value is more than or equal to 2;
403, send image file corresponding to identification information to radio reception device, until the quantity of the image file that sends equals the integral multiple of preset value, perhaps, be sent out complete if quantity is not equal to integral multiple and the image file of preset value;
What 404, receive that radio reception device sends second upgrades response, if second upgrade response and be used to indicate image file and be not sent out completely, then continues to send image file corresponding to identification information that does not send to radio reception device.
After adopting such scheme, only have the quantity of the image file that sends when controller to equal the integral multiple of preset value, perhaps, integral multiple and image file that the quantity of the image file that sends is not equal to preset value are sent out complete, and after receiving the second renewal response, just continue to send the image file that does not send to radio reception device, reduce radio reception device and sent the quantity that the second renewal responds to controller, shorten the time based on the WLAN WTP firmware version upgrade of CAPWAP agreement, increased the performance of WLAN WTP.
Present embodiment provides a kind of radio reception device, as shown in Figure 5, can comprise:
Further, processor also is used for sending update request to controller, and update request also comprises indication information, and indication information is used to indicate controller configuration preset value.
After adopting such scheme, only have the quantity of the image file that receives when processor to equal the integral multiple of preset value, perhaps, the quantity of the image file that receives is not equal to the integral multiple of preset value and image file and is sent out when complete, just send second to controller and upgrade response, second upgrades response is used to indicate the image file that controller does not send to radio reception device continuation transmission, reduce radio reception device and sent the quantity that the second renewal responds to controller, shorten the time based on the WLAN WTP firmware version upgrade of CAPWAP agreement, increased the performance of WLAN WTP.
Present embodiment provides a kind of controller, as shown in Figure 6, can comprise:
Further, processor also is used for receiving update request, and update request comprises indication information, and indication information is used to indicate the controller preset value.
After adopting such scheme, only have the quantity of the image file that sends when processor to equal the integral multiple of preset value, perhaps, integral multiple and image file that the quantity of the image file that sends is not equal to preset value are sent out complete, and after receiving the second renewal response, just continue to send the image file that does not send to radio reception device, reduce radio reception device and sent the quantity that the second renewal responds to controller, shorten the time based on the WLAN WTP firmware version upgrade of CAPWAP agreement, increased the performance of WLAN WTP.
Present embodiment provides a kind of system of the WLAN WTP firmware version upgrade based on the CAPWAP agreement, as shown in Figure 7, can comprise: the controller 72 that the radio reception device 71 that above embodiment provides and above embodiment provide.
After adopting such scheme, only have the quantity of the image file that receives when radio reception device to equal the integral multiple of preset value, perhaps, the quantity of the image file that receives is not equal to the integral multiple of preset value and image file and is sent out when complete, just send second to controller and upgrade response, second upgrades response is used to indicate the image file that controller does not send to radio reception device continuation transmission, reduce radio reception device and sent the quantity that the second renewal responds to controller, shorten the time based on the WLAN WTP firmware version upgrade of CAPWAP agreement, increased the performance of WLAN WTP.
Through the above description of the embodiments, the those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential common hardware, can certainly pass through hardware, but the former is better execution mode in a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium that can read, floppy disk such as computer, hard disk or CD etc., comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above; be the specific embodiment of the present invention only, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection range with claim.
Claims (9)
1. the method based on the WLAN WTP firmware version upgrade of CAPWAP agreement is characterized in that, comprising:
Radio reception device sends update request to controller, and described update request comprises image file identification information to be updated, and described controller is used for controlling described radio reception device;
Receive the first renewal response that described controller sends, described first upgrades response comprises preset value, and described preset value is more than or equal to 2;
Receive image file corresponding to described identification information, until the quantity of the image file that receives is when equaling the integral multiple of described preset value, perhaps, if being not equal to the integral multiple of described preset value and image file, described quantity is sent out when complete, send second to described controller and upgrade response, be used to indicate image file and be not sent out completely if described second upgrades response, then continue to send image file corresponding to described identification information that does not send to described radio reception device;
When image file be sent out complete after, store and upgrade the image file that all receive.
2. method according to claim 1 is characterized in that, described update request also comprises indication information, and described indication information is used to indicate described controller and disposes described preset value.
3. the method based on the WLAN WTP firmware version upgrade of CAPWAP agreement is characterized in that, comprising:
Controller receives the update request that radio reception device sends, and described update request comprises image file identification information to be updated, and described controller is used for controlling described radio reception device;
Send first to described radio reception device and upgrade response, described first upgrades response comprises preset value, and described preset value is more than or equal to 2;
Send image file corresponding to described identification information to described radio reception device, until the quantity of the image file that sends equals the integral multiple of described preset value, perhaps, be sent out complete if described quantity is not equal to integral multiple and the image file of described preset value;
What receive that described radio reception device sends second upgrades response, if described second upgrade response and be used to indicate image file and be not sent out completely, then continues to send image file corresponding to described identification information that does not send to described radio reception device.
4. method according to claim 3 is characterized in that, described update request also comprises indication information, and described indication information is used to indicate the described preset value of described controller.
5. a radio reception device is characterized in that, comprising:
Processor is used for sending update request to controller, and described update request comprises image file identification information to be updated, and described controller is used for controlling described radio reception device; Receive the first renewal response that described controller sends, described first upgrades response comprises preset value, and described preset value is more than or equal to 2; Receive image file corresponding to described identification information, until the quantity of the image file that receives is when equaling the integral multiple of described preset value, perhaps, if being not equal to the integral multiple of described preset value and image file, described quantity is sent out when complete, send second to described controller and upgrade response, be used to indicate image file and be not sent out completely if described second upgrades response, then continue to send image file corresponding to described identification information that does not send to described radio reception device;
Memory is used for after image file is sent by described processor, stores and upgrades the image file that all receive.
6. radio reception device according to claim 5 is characterized in that, described processor is used for sending described update request to controller, and described update request also comprises indication information, and described indication information is used to indicate described controller and disposes described preset value.
7. a controller is characterized in that, comprising:
Processor is used for receiving the update request that radio reception device sends, and described update request comprises image file identification information to be updated, and described controller is used for controlling described radio reception device; Send first to described radio reception device and upgrade response, described first upgrades response comprises preset value, and described preset value is more than or equal to 2; Send image file corresponding to described identification information to described radio reception device, until the quantity of the image file that sends equals the integral multiple of described preset value, perhaps, be sent out complete if described quantity is not equal to integral multiple and the image file of described preset value; What receive that described radio reception device sends second upgrades response, if described second upgrade response and be used to indicate image file and be not sent out completely, then continues to send image file corresponding to described identification information that does not send to described radio reception device;
Memory is used for storing image file corresponding to identification information that update request that described processor receives comprises.
8. controller according to claim 7 is characterized in that, described processor is used for receiving described update request, and described update request comprises indication information, and described indication information is used to indicate the described preset value of described controller.
9. the system based on the WLAN WTP firmware version upgrade of CAPWAP agreement is characterized in that, comprising: the described radio reception device of claim 5 to 6 any one and the described controller of claim 7 to 8 any one.
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| PCT/CN2012/078768 WO2014012220A1 (en) | 2012-07-17 | 2012-07-17 | Method, device and system for upgrading capwap protocol-based wlan wtp firmware version |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2014012220A1 (en) * | 2012-07-17 | 2014-01-23 | 华为技术有限公司 | Method, device and system for upgrading capwap protocol-based wlan wtp firmware version |
| CN105101195A (en) * | 2014-04-30 | 2015-11-25 | 华为技术有限公司 | Network access control method and network access device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| WO2014012220A1 (en) | 2014-01-23 |
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