CN103634782A - Access point (AP) version upgrade method, system and apparatus - Google Patents
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Abstract
The invention discloses an access point (AP) version upgrade method. The access point (AP) version upgrade method comprises the following steps that: when an access point (AP) transmits a version data request message carrying version identification codes to request to download an access point (AP) version file, an access controller (AC) queries locally the hash value of the access point (AP) version file requested to be downloaded; and the access controller (AC) transmits a version data response massage to the access point (AP), wherein the version data response massage carries the hash value of the access point (AP) version file or carries a hash value that is zero, so that access point (AP) version upgrade can be performed. The invention further discloses an access point (AP) version upgrade system and an apparatus. With the access point (AP) version upgrade method, the access point (AP) version upgrade system and the apparatus of the invention adopted, time for the access controller (AC) to separately calculate the hash value of the access point (AP) version file in the access point (AP) version upgrade can be saved, and the efficiency of the access point (AP) version upgrade can be improved.
Description
Technical Field
The present invention relates to a Wireless Access technology in the field of Wireless Local Area Networks (WLAN), and in particular, to a method, a system, and a device for upgrading an Access Point (AP) version.
Background
Existing WLANs generally employ a thin AP architecture with an AP plus Access Controller (AC). Under the thin AP architecture, the AC performs operations such as configuration management And version upgrade on the AP through a Wireless Access point Control configuration Protocol (CAPWAP), as shown in fig. 1 by a dotted line, a transmission channel of a CAPWAP management message And a Control message, And a solid line, a transmission channel of a data message.
The CAPWAP defines a process of version upgrading operation of the AP by the AC, and is specifically divided into two scenes, namely when the AP is accessed to the AC for the first time and when the AP is accessed to the AC and then normally operates, wherein in the upgrading processes corresponding to the two scenes, when the AP requests the AC for the AP version file, the AC can continue upgrading operation after calculating the hash value of the AP version file. Therefore, when the number of the APs accessing the AC is large, the AC needs to calculate the hash value of the AP version file requested to be downloaded each time the AP is upgraded, and the upgrade operation can be continued after the calculation is completed, thereby reducing the upgrade efficiency.
Disclosure of Invention
In view of this, the present invention provides a method, a system and a device for upgrading an AP version, which effectively improve the efficiency of upgrading the AP version by an AC.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the invention provides a method for upgrading an AP version, which comprises the following steps:
the AP sends a version data request message carrying a version identification code to the access controller AC, and when the AP version file is requested to be downloaded, the AC locally inquires a hash value of the AP version file requested to be downloaded;
and the AC sends a version data response message to the AP, wherein the message carries the hash value of the AP version file or the hash value with the value of zero so as to upgrade the AP version.
In the above scheme, the AC sends a version data response message to the AP, where the message carries the hash value of the AP version file, or the hash value with a value of zero is:
if the AC locally inquires the hash value of the AP version file requested to be downloaded, sending a version data response message to the AP, wherein the message carries the hash value of the AP version file requested to be downloaded; otherwise, sending a version data response message to the AP, wherein the message carries a hash value with a value of zero.
In the foregoing solution, after the AC sends a version data response message to the AP, where the message carries a hash value with a value of zero, the method further includes:
and the AC calculates the hash value of the AP version file requested to be downloaded, and stores the calculated hash value locally.
In the foregoing solution, after the AC calculates the hash value of the AP version file requested to be downloaded, the method further includes:
and the AC sends a version data request message to the AP, wherein the message carries the hash value of the AP version file requested to be downloaded.
The present invention also provides an AC, the AC comprising; the system comprises a message receiving unit, a hash value query unit and a message sending unit; wherein,
the message receiving unit is used for receiving a version data request message which is sent by the AP and carries a version identification code to request downloading of an AP version file;
the hash value query unit is used for querying the hash value of the AP version file requested to be downloaded in the hash value storage unit when the message receiving unit receives the version data request message;
and the message sending unit is used for sending a version data response message to the AP, wherein the message carries the hash value of the AP version file or the hash value with the value of zero so as to upgrade the AP version.
In the above scheme, the AC further includes: a hash value calculation unit and a hash value storage unit; wherein,
the hash value calculating unit is used for calculating the hash value of the AP version file requested to be downloaded when the hash value inquiring unit does not inquire the hash value of the AP version file requested to be downloaded in the hash value storage unit;
the hash value storage unit is used for storing the hash value of the AP version file requested to be downloaded, which is calculated by the hash value calculation unit;
the message sending unit is specifically configured to send a version data response message to the AP when the hash value querying unit queries the hash value of the AP version file requested to be downloaded in the hash value storage unit, where the message carries the hash value of the AP version file requested to be downloaded; and when the hash value of the AP version file requested to be downloaded is not inquired by the hash value inquiry unit in the hash value storage unit, sending a version data response message to the AP, wherein the message carries a hash value with a value of zero.
In the foregoing solution, the message sending unit is further configured to:
and when the hash value calculation unit calculates the hash value of the AP version file requested to be downloaded, sending a version data request message to the AP, wherein the message carries the calculated hash value of the AP version file requested to be downloaded.
Correspondingly, the invention also provides a system for upgrading the AP version, which comprises the AP and the AC; wherein,
the AC is used for locally inquiring the hash value of the AP version file requested to be downloaded when receiving a version data request message which is sent by the AP and carries a version identification code to request to download the AP version file; and sending a version data response message to the AP, wherein the message carries the hash value of the AP version file or the hash value with the value of zero, so as to upgrade the AP version.
In the above solution, the AC includes: the system comprises a message receiving unit, a hash value query unit, a message sending unit, a hash value calculation unit and a hash value storage unit; the functions of the units are the same as described above.
According to the scheme, the hash value stored locally can be directly read and sent to the AP, the hash value of the AP version file does not need to be recalculated, the time for performing version upgrading operation on the AP is saved, and particularly when a plurality of APs are simultaneously accessed to the AC, the efficiency for performing version upgrading operation on the AP can be effectively improved.
Furthermore, when the AC uses the AP version file to upgrade the AP for the first time, the AC calculates the hash value of the AP version file by using the process of reading the AP version file and fragmenting and issuing the AP version file, stores the hash value in the local, and directly reads the locally stored hash value and sends the locally stored hash value to the AP when the AC uses the AP version file to upgrade other APs subsequently, so that the time of performing version upgrade operation on the AP is saved, and especially when a plurality of APs access the AC simultaneously, the efficiency of performing version upgrade operation on the AP can be effectively improved.
Drawings
Fig. 1 is a schematic networking diagram of a WLAN under a conventional thin AP architecture;
FIG. 2 is a schematic diagram of an implementation flow of the AP version upgrading method of the present invention;
FIG. 3 is a schematic diagram of an implementation flow of the present invention in which an AP interacts with an AC to confirm an upgrade operation when the AP accesses the AC for the first time;
FIG. 4 is a schematic diagram of an implementation flow of the present invention in which an AP interacts with an AC at any time during normal operation to confirm upgrading operation after accessing the AC;
FIG. 5 is a schematic diagram of the structure of the AP version upgrading system according to the present invention;
fig. 6 is a schematic diagram of an implementation flow of an AP version upgrade embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 2, a schematic diagram of an implementation process of the AP version upgrading method of the present invention is shown, where the process includes the following steps:
step 21: the AP sends a version data request message carrying the version identification code of the AP version file to the AC, and when the AP version file is requested to be downloaded, the AC locally inquires the hash value of the AP version file requested to be downloaded;
here, the operation of upgrading the version of the AP by the AC may be applied to two upgrading scenarios specified by the CAPWAP, and may be applied to any time when the AP first accesses the AC, and when the AP normally operates after accessing the AC.
Here, before step 21, the method further includes the step of the AP interacting with the AC according to the procedure of CAPWAP to confirm the upgrading.
Fig. 3 is a schematic diagram illustrating an implementation flow of an AP interacting with an AC to confirm an upgrade operation when the AP accesses the AC for the first time, and as shown in fig. 3, the method includes the following steps:
step 2111: the administrator uploads the AP version file to the AC;
step 2112: when the AP is accessed to the AC for the first time, sending an access request message carrying the version identification code of the AP version file currently operated by the AP to the AC;
step 2113-2115: the AC detects whether the version of the AP needs to be upgraded, if so, an access response message carrying a new version identification code is sent to the AP, and then step 22 is executed; otherwise, the upgrading process is terminated, and the AP enters a configuration issuing state.
Here, the AC detects whether version upgrade of the AP is required as follows:
and the AC extracts the version identification code carried by the received access request message, compares the version identification code with the version identification code of the locally stored AP version, and determines whether the corresponding version identification code sent by the AP corresponds to a new AP version file, if so, the AP is not required to perform version upgrading, otherwise, the AP is required to perform version upgrading.
Fig. 4 is a schematic diagram illustrating an implementation flow of an AP interacting with an AC to confirm an upgrade operation at any time of normal operation after the AP accesses the AC, as shown in fig. 4, including the following steps:
step 2121: the administrator uploads the AP version file to the AC;
2122-2124: the AC detects whether the AP needs to be subjected to version upgrading, and if so, a configuration updating request message carrying a new version identification code is sent to the AP to inform the AP of the version upgrading; otherwise, the operation is not executed;
here, the AC detects whether the AP needs to be version-upgraded:
and the AC compares the version identification code of the newly uploaded AP version file with the version identification code of the locally maintained AP version file corresponding to the AP to determine whether the AP version file of the AP is a newer version, if so, the AP is not required to be subjected to version upgrading, and otherwise, the AP is required to be subjected to version upgrading.
Step 2125: the AP returns a configuration update response message to the AC.
Step 22: and the AC sends a version data response message to the AP, wherein the message carries the hash value of the AP version file or the hash value with the value of zero so as to upgrade the AP version.
Here, the AC sends a version data response message to the AP, where the message carries a hash value of the AP version file or a hash value with a value of zero, and specifically:
if the AC locally inquires the hash value of the AP version file requested to be downloaded in the step 21, sending a version data response message to the AP, wherein the message carries the hash value of the AP version file requested to be downloaded; otherwise, sending a version data response message to the AP, wherein the message carries a hash value with a value of zero.
Here, the AC sends a version data response message to the AP, where the message carries a hash value of the AP version file or a hash value with a value of zero, and the version data response message also carries a size value of the AP version file requested to be downloaded according to the CAPWAP protocol.
Here, after the AC locally queries the hash value of the AP version file requested to be downloaded, and sends a version data response message to the AP, where the message carries the hash value and the size value of the AP version file requested to be downloaded, the AP and the AC perform the following operations according to the CAPWAP procedures: the AP version file is fragmented by the AC, version file data is sent to the AP fragments through the version data request message, the AP merges the data into an AP version file after receiving all fragmented version file data, the AP version file is verified according to the hash value and the size value of the AP version file obtained before, and if the verification is successful, upgrading operation is carried out; otherwise, continuously requesting the version file data again until the verification is successful, and performing upgrading operation.
Here, the AC sends a version data response message to the AP if the AC does not query the hash value of the AP version file requested to be downloaded locally, where the message carries a hash value of zero and a size value of the AP version file, the AC fragments the AP version file and sends version file data to the AP fragments through the version data request message, and in the process of sending version file data by the fragments, the AC calculates the hash value of the AP version file, stores the calculated hash value locally, and when the AC sends the last piece of version file data to the AP through the data request message, carries the calculated hash value in the data request message and sends the data request message to the AP. The AC fragments the AP version file and sends version file data to the AP fragments through the version data request message, wherein the operation is performed according to CAPWAP procedures.
Here, after receiving the version file data of all the fragments, the AP performs the following operations according to the CAPWAP procedure: merging the received version file data into an AP version file, verifying the AP version file according to the size of the received file and the hash value, and if the verification is successful, performing upgrading operation; otherwise, continuously requesting the version file data again until the verification is successful, and performing upgrading operation.
Example two
Fig. 5 is a schematic diagram of a composition structure of the AP version file upgrading system of the present invention, and as shown in fig. 5, the system includes: AC 51 and AP 52; wherein,
the AC 51 is configured to, when receiving a version data request message which is sent by the AP 52 and carries a version identification code to request to download an AP version file, locally query a hash value of the AP version file requested to be downloaded; and sending a version data response message to the AP 52, where the message carries the hash value of the AP version file or carries a hash value with a value of zero.
In the above scheme, AC 51 comprises; a message receiving unit 511, a hash value querying unit 512, and a message sending unit 513; wherein,
a message receiving unit 511, configured to receive a version data request message that is sent by the AP 52 and carries a version identification code to request downloading of an AP version file;
a hash value query unit 512, configured to query, when the message receiving unit 511 receives a version data request message that is sent by the AP 52 and carries a version identification code to request downloading of an AP version file, a hash value of the AP version file requested to be downloaded at a hash value storage unit 515;
a message sending unit 513, configured to send a version data response message to the AP 52, where the message carries the hash value of the AP version file or carries a hash value with a value of zero.
In the above scheme, the AC 51 further includes: a hash value calculation unit 514 and a hash value storage unit 515; wherein,
a hash value calculation unit 514, configured to calculate a hash value of the AP version file requested to be downloaded when the hash value query unit 512 does not query the hash value of the AP version file requested to be downloaded in the hash value storage unit 515;
a hash value storage unit 515, configured to store the hash value of the AP version file requested to be downloaded, which is calculated by the hash value calculation unit 514;
a message sending unit 513, configured to send a version data response message to the AP 52 when the hash value querying unit 512 queries the hash value of the AP version file requested to be downloaded in the hash value storage unit 515, where the message carries the hash value of the AP version file requested to be downloaded; when the hash value storage unit 515 does not query the hash value of the AP version file requested to be downloaded, the hash value query unit 512 sends a version data response message to the AP 52, where the message carries a hash value with a value of zero.
In the foregoing scheme, the message sending unit 513 is further configured to:
when the hash value calculation unit 514 calculates the hash value of the AP version file requested to be downloaded, a version data request message is sent to the AP 52, where the message carries the calculated hash value of the AP version file requested to be downloaded.
EXAMPLE III
Fig. 6 is a schematic diagram illustrating an implementation flow of an AP version upgrade embodiment of the present invention, and as shown in fig. 6, the flow includes the following steps:
step 601: the AP sends a version data request message to the AC, wherein the message carries the version identification code of the AP version;
here, before step 601, the procedure according to CAPWAP further includes a step in which the AP interacts with the AC to confirm that the upgrade operation is performed, and the specific steps are as described in fig. 3 and fig. 4, and are not described again.
Step 602-603: the AC locally inquires the hash value of the AP version file requested to be downloaded and sends a version data response message to the AP;
here, the AC locally queries the hash value of the AP version file requested to be downloaded, and then sends a version data response message to the AP, where the message carries the hash value of the AP version file requested to be downloaded; otherwise, sending a version data response message to the AP, wherein the message carries a hash value with a value of zero.
Correspondingly, according to the CAPWAP regulation, the version data response message also carries the size value of the AP version file requested to be downloaded.
Step 604-605: the AC reads the AP version file, performs fragmentation, and sends fragmented version file data to the AP through the version data request message;
step 606: after receiving the fragmented version file data, the AP sends a version data response message to the AC to confirm that the data is successfully received;
here, the AP and the AC repeatedly execute step 605 and step 606 according to the procedure of the CAPWAQ, and perform multiple interactions to transmit the fragmented version file data.
Here, if the AC does not locally inquire the hash value of the AP version file requested to be downloaded in step 602, the AC calculates the hash value of the AP version file requested to be downloaded during the above-mentioned transmission of the fragmented version file data, and stores the calculated hash value locally.
Step 607: the AC sends a version data request message to the AP, wherein the message carries the last piece of version file data;
here, if the AC does not inquire the hash value of the AP version file requested to be downloaded in step 602, the AC transmits the calculated hash value of the AP version file to the AP in the version data request message in the process of transmitting the fragmented version file data described in step 606.
Step 608: after receiving the fragmented version file data, the AP sends a version data response message to the AC to confirm that the data is successfully received;
step 609: and the AP combines the received version file data into an AP version file and carries out verification and upgrading operation.
The AP combines the received version file data into an AP version file, the AP version file is verified according to the size of the received file and the hash value, and if the verification is successful, upgrading operation is carried out; otherwise, continuously requesting the version file data again until the verification is successful, and performing upgrading operation.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention.
Claims (9)
1. A method for upgrading the AP version of a wireless access point is characterized in that the method comprises the following steps:
the AP sends a version data request message carrying a version identification code to the access controller AC, and when the AP version file is requested to be downloaded, the AC locally inquires a hash value of the AP version file requested to be downloaded;
and the AC sends a version data response message to the AP, wherein the message carries the hash value of the AP version file or the hash value with the value of zero so as to upgrade the AP version.
2. The method of claim 1, wherein the AC sends a version data response message to the AP, and the message carries the hash value of the AP version file, or carries a hash value of zero as:
if the AC locally inquires the hash value of the AP version file requested to be downloaded, sending a version data response message to the AP, wherein the message carries the hash value of the AP version file requested to be downloaded; otherwise, sending a version data response message to the AP, wherein the message carries a hash value with a value of zero.
3. The method of claim 2, wherein the AC sends a version data response message to the AP, and wherein the message carries a hash value of zero, and wherein the method further comprises:
and the AC calculates the hash value of the AP version file requested to be downloaded, and stores the calculated hash value locally.
4. The method of claim 1, 2 or 3, wherein after the AC calculates the hash value of the AP version file requested to be downloaded, the method further comprises:
and the AC sends a version data request message to the AP, wherein the message carries the hash value of the AP version file requested to be downloaded.
5. An AC, wherein the AC comprises; the system comprises a message receiving unit, a hash value query unit and a message sending unit; wherein,
the message receiving unit is used for receiving a version data request message which is sent by the AP and carries a version identification code to request downloading of an AP version file;
the hash value query unit is used for querying the hash value of the AP version file requested to be downloaded in the hash value storage unit when the message receiving unit receives the version data request message;
and the message sending unit is used for sending a version data response message to the AP, wherein the message carries the hash value of the AP version file or the hash value with the value of zero so as to upgrade the AP version.
6. The apparatus of claim 5, wherein the AC further comprises: a hash value calculation unit and a hash value storage unit; wherein,
the hash value calculating unit is used for calculating the hash value of the AP version file requested to be downloaded when the hash value inquiring unit does not inquire the hash value of the AP version file requested to be downloaded in the hash value storage unit;
the hash value storage unit is used for storing the hash value of the AP version file requested to be downloaded, which is calculated by the hash value calculation unit;
the message sending unit is specifically configured to send a version data response message to the AP when the hash value querying unit queries the hash value of the AP version file requested to be downloaded in the hash value storage unit, where the message carries the hash value of the AP version file requested to be downloaded; and when the hash value of the AP version file requested to be downloaded is not inquired by the hash value inquiry unit in the hash value storage unit, sending a version data response message to the AP, wherein the message carries a hash value with a value of zero.
7. The AC of claim 5 or 6, wherein the message sending unit is further configured to:
and when the hash value calculation unit calculates the hash value of the AP version file requested to be downloaded, sending a version data request message to the AP, wherein the message carries the calculated hash value of the AP version file requested to be downloaded.
8. A system for upgrading AP version, comprising an AP, wherein the system further comprises:
the AC is used for locally inquiring the hash value of the AP version file requested to be downloaded when receiving a version data request message which is sent by the AP and carries a version identification code to request to download the AP version file; and sending a version data response message to the AP, wherein the message carries the hash value of the AP version file or the hash value with the value of zero, so as to upgrade the AP version.
9. The system of claim 8, wherein the AC is the AC of any one of claims 5 to 7.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210310332.0A CN103634782B (en) | 2012-08-28 | 2012-08-28 | Access point (AP) version upgrade method, system and apparatus |
| PCT/CN2013/081354 WO2014032516A1 (en) | 2012-08-28 | 2013-08-13 | Method, system and device for upgrading version of wireless access point |
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| CN201210310332.0A CN103634782B (en) | 2012-08-28 | 2012-08-28 | Access point (AP) version upgrade method, system and apparatus |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| CN106060135A (en) * | 2016-05-31 | 2016-10-26 | 杭州华三通信技术有限公司 | Version updating method and device |
| 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 |
| CN108471361A (en) * | 2018-03-28 | 2018-08-31 | 新华三技术有限公司 | A kind of version upgrading method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108882277B (en) * | 2018-05-28 | 2022-04-26 | 新华三技术有限公司 | Version upgrading method and device |
| CN112367350B (en) * | 2020-09-29 | 2022-04-01 | 新华三大数据技术有限公司 | Version file operation method and device |
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| CN101668041A (en) * | 2009-09-10 | 2010-03-10 | 杭州华三通信技术有限公司 | Method for downloading distributed AP and device |
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| JP2005309759A (en) * | 2004-04-21 | 2005-11-04 | Nippon Telegr & Teleph Corp <Ntt> | Electronic data providing system, method, and program |
| CN101808315A (en) * | 2010-04-08 | 2010-08-18 | 北京傲天动联技术有限公司 | Thin AP upgrade method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| CN106060135A (en) * | 2016-05-31 | 2016-10-26 | 杭州华三通信技术有限公司 | Version updating method and device |
| CN106060135B (en) * | 2016-05-31 | 2019-08-06 | 新华三技术有限公司 | A kind of method for updating edition and device |
| 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 |
| CN108471361A (en) * | 2018-03-28 | 2018-08-31 | 新华三技术有限公司 | A kind of version upgrading method and device |
| CN108471361B (en) * | 2018-03-28 | 2021-08-24 | 新华三技术有限公司 | Version upgrading method and device |
Also Published As
| Publication number | Publication date |
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| WO2014032516A1 (en) | 2014-03-06 |
| CN103634782B (en) | 2017-05-03 |
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