CN104812021B - A kind of method and device of AP access AC - Google Patents
A kind of method and device of AP access AC Download PDFInfo
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- CN104812021B CN104812021B CN201510152660.6A CN201510152660A CN104812021B CN 104812021 B CN104812021 B CN 104812021B CN 201510152660 A CN201510152660 A CN 201510152660A CN 104812021 B CN104812021 B CN 104812021B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
- H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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Abstract
The application provides the method and device of access point AP access access controller AC a kind of, first AP and the 2nd AP is located at same double layer network, first AP is the AP of AC to be accessed, and the 2nd AP is the AP for having accessed AC, this method comprises: sending the first discovery request message by broadcast mode；The first discovery response message that the 2nd AP is responded according to the first discovery request message is received, carries the IP address that the 2nd AP has accessed AC in the first discovery response message；It can be accessed with AC according to the IP address selection that the 2nd AP has accessed AC.AP discovery, which can be improved, in the application can use the probability of AC, simplify system configuration.
Description
Technical field
This application involves network communication technology field more particularly to the method and devices of AP access AC a kind of.
Background technique
In WLAN (Wireless Local Area Network, WLAN) network, AP (Access Point,
Access point) with AC (Access Controller, access controller) between pass through CAPWAP (Control And
Provisioning of Wireless Access Point, wireless access point control and configuration) tunnel transmitting data message and
Control message.CAPWAP tunnel establish first stage be AC discovery phase, i.e. AP discovery can use AC stage, AP need to
AC sends discovery request message, after AC replys discovery response message, continues to execute follow-up process and AC establishes CAPWAP tunnel.
AP needs to obtain the IP address of AC before sending discovery request message to AC, obtains the mode master of the IP address of AC at present
It to include static acquisition modes and dynamic acquisition mode.When the IP address of AC can not be got by above two mode, AP
Discovery request message is sent by broadcast mode, but which requires AP and AC in the same double layer network, otherwise, AP can not
It was found that AC.
Summary of the invention
In view of this, the application provides the method and device of AP access AC a kind of.
Specifically, the application is achieved by the following technical solution:
The application provides the method for access point AP access access controller AC a kind of, and the first AP and the 2nd AP are located at same two
Layer network, wherein the first AP is the AP of AC to be accessed, and the 2nd AP is the AP for having accessed AC, and this method is applied to institute
State the first AP, comprising:
The first discovery request message is sent by broadcast mode；
Receive the 2nd AP according to it is described first discovery request message respond first discovery response message, described first
It was found that carrying the IP address that the 2nd AP has accessed AC in response message；
It can be accessed with AC according to the IP address selection that the 2nd AP has accessed AC.
The application also provides the method for access point AP access access controller AC a kind of, and the first AP and the 2nd AP is located at same
Double layer network, wherein the first AP is the AP of AC to be accessed, and the 2nd AP is the AP for having accessed AC, and this method is applied to
2nd AP, comprising:
Receive the first discovery request message that the first AP is sent by broadcast mode；
The first discovery response message of the first discovery request message is responded to the first AP, first discovery is rung
It answers and carries the IP address for having accessed AC in message, so that the first AP can be accessed according to the selection of the IP address of the AC with AC.
The application also provides the device of access point AP access access controller AC a kind of, and the first AP and the 2nd AP is located at same
Double layer network, wherein the first AP is the AP of AC to be accessed, and the 2nd AP is the AP for having accessed AC, which is applied to
First AP, comprising:
Transmission unit, for sending the first discovery request message by broadcast mode；
Receiving unit is responded for receiving the 2nd AP according to the first discovery that the first discovery request message is responded
Message, described first finds to carry the IP address that the 2nd AP has accessed AC in response message；
Selecting unit, the IP address for having accessed AC according to the 2nd AP select to be accessed with AC.
The application also provides the device of access point AP access access controller AC a kind of, and the first AP and the 2nd AP is located at same
Double layer network, wherein the first AP is the AP of AC to be accessed, and the 2nd AP is the AP for having accessed AC, which is applied to
2nd AP, comprising:
Receiving unit, the first discovery request message sent for receiving the first AP by broadcast mode；
Unit is responded, for responding the first discovery response message of the first discovery request message to the first AP,
The IP address for having accessed AC is carried in the first discovery response message, so that the first AP is selected according to the IP address of the AC
Select available AC access.
It, can be by same double layer network it can be seen from foregoing description when AP, which can not directly have found, to use AC
Other available AC accessed in AP acquisition current network, the probability of AC can be used by improving AP discovery, and simplify system configuration,
An online AP is only needed to configure in same double layer network, and the access of other AP in the double layer network can be realized.
Detailed description of the invention
Fig. 1 is the WLAN networking schematic diagram shown in one exemplary embodiment of the application；
Fig. 2 is the method flow diagram of AP access AC shown in one exemplary embodiment of the application a kind of；
Fig. 3 is the method flow diagram of AP access AC shown in the application another exemplary embodiment a kind of；
Fig. 4 is that the hardware configuration of equipment where the device of AP access AC shown in one exemplary embodiment of the application a kind of shows
It is intended to；
Fig. 5 is a kind of structural schematic diagram of the device of AP access AC shown in one exemplary embodiment of the application；
Fig. 6 is a kind of structural schematic diagram of the device of AP access AC shown in the application another exemplary embodiment.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the application.
It is only to be not intended to be limiting the application merely for for the purpose of describing particular embodiments in term used in this application.
It is also intended in the application and the "an" of singular used in the attached claims, " described " and "the" including majority
Form, unless the context clearly indicates other meaning.It is also understood that term "and/or" used herein refers to and wraps
It may be combined containing one or more associated any or all of project listed.
It will be appreciated that though various information, but this may be described using term first, second, third, etc. in the application
A little information should not necessarily be limited by these terms.These terms are only used to for same type of information being distinguished from each other out.For example, not departing from
In the case where the application range, the first information can also be referred to as the second information, and similarly, the second information can also be referred to as
One information.Depending on context, word as used in this " if " can be construed to " ... when " or " when ...
When " or " in response to determination ".
Fig. 1 show WLAN networking schematic diagram.Wherein, access point AP1~AP3 is located at same double layer network, and passes through friendship
Exchange device SW access is located at access controller AC1 or AC2 in outer net.Control report is carried out by CAPWAP tunnel between AP and AC
The transmission of text and data message, and establish CAPWAP tunnel and find that AC, i.e. AP find available AC firstly the need of AP, and from available
An AC access is selected in AC, to establish CAPWAP tunnel.
AP find AC process since obtain AC IP address, it is existing obtain AC IP address mode mainly include with
Under it is several:
1. configuring the IP address of AC directly in AP.
2. from DHCP (Dynamic Host Configuration Protocol, dynamic host configuration protocol) server
Option (option) field of return obtains the IP address of AC.
3. obtaining the IP address of AC by DNS (Domain Name System, domain name system) parsing.
4. obtaining the IP address of AC by broadcast mode.
When Dynamic Host Configuration Protocol server being not configured when the IP address that AC is not configured in AP, and in network, can not by preceding 3 kinds of modes
The IP address of AC is obtained, at this point, AP can obtain the IP address of AC using the 4th kind of mode, but which requires AC and AP positioned at same
One double layer network connects across a network shown in FIG. 1, will be unable to the IP address that AC is obtained by broadcast mode, thus can not
It was found that can be with AC to establish CAPWAP tunnel.
In view of the above-mentioned problems, the embodiment of the present application proposes a kind of method that AP accesses AC, the first AP passes through wide in this method
Broadcast mode sends the first discovery request message, is located at the 2nd AP in same double layer network with the first AP and receives first discovery
After request message, the first discovery response message is responded to the first AP, the first AP is available according to the first discovery response message selection
AC access, wherein the first AP is the AP of AC to be accessed, and the 2nd AP is the AP for having accessed AC.
Referring to fig. 2, one embodiment flow chart of the method for AC is accessed for the application AP, the embodiment is from the first side pair AP
The process of AP access AC is described.
Step 201, the first discovery request message is sent by broadcast mode.
As previously mentioned, the first AP can be by wide when the first AP can not obtain the IP address of AC by preceding 3 kinds of modes
Broadcast mode sends the first discovery request message.Under network environment shown in Fig. 1, AC can not receive the first of the first AP transmission
It was found that therefore request message will not respond the first discovery request message.But it is located at same two with the first AP
The 2nd AP in layer network can receive this first discovery request message, and receive this first discovery request message when to
First AP responds the first discovery response message.
Step 202, the first discovery response message that the 2nd AP is responded according to the first discovery request message is received,
The IP address that the 2nd AP has accessed AC is carried in the first discovery response message.
Step 203, it can be accessed with AC according to the IP address selection that the 2nd AP has accessed AC.
After first AP receives the first discovery response message that the 2nd AP is responded, the is obtained from the first discovery response message
Two AP have accessed the IP address of AC, and send the second discovery request message to the AC according to the IP address of the AC.AC receives second
It was found that responding the second discovery response message to the first AP after request message.First AP receive this second discovery response message, and from
The device status information that the AC is obtained in the second discovery response message, for example, the loading condition etc. of the priority of AC, AC.When
When first AP gets the device status information of multiple AC, the AC of best performance is selected to connect according to corresponding device status information
Enter, and then establishes CAPWAP tunnel with the AC of the best performance and carry out message transmissions.
Referring to Fig. 3, one embodiment flow chart of the method for AC is accessed for the application AP, the embodiment is from the 2nd side pair AP
The process of AP access AC is described.
Step 301, the first discovery request message that the first AP is sent by broadcast mode is received.
Since the 2nd AP and the first AP is located at same double layer network, the 2nd AP, which can receive to the first AP, to be passed through extensively
The first discovery request message that broadcast mode is sent.Referring specifically to the description of abovementioned steps 201, details are not described herein.
Step 302, the first discovery response message of the first discovery request message is responded to the first AP, described the
The IP address for having accessed AC is carried in one discovery response message, so that the first AP selects can be used according to the IP address of the AC
AC access.
2nd AP itself has accessed the IP address of AC carrying into the first discovery response message that the first AP is responded, specifically
Are as follows: the 2nd AP itself has accessed the IP address of AC from locally obtaining, and the IP address is added in the first discovery response message
It is sent to the first AP, so that the first AP when receiving the first discovery response message, is obtained from the first discovery response message
The IP address of AC, to send the second discovery request message of unicast to the AC, and in the second discovery for receiving AC response
After response message, according to the device status information of the AC carried in the second discovery response message determine whether that the AC is selected to connect
Enter, to complete CAPWAP tunnel foundation.
Now still by taking Fig. 1 as an example, the process of AP access AC is discussed in detail.
It is assumed that current AP1 has accessed AC1, AP2 has accessed AC2.
When there is new access point AP3 access, since the IP address of static AC being not configured in AP3, and can not pass through
The IP address of available AC in Dynamic Host Configuration Protocol server dynamic acquisition current network, therefore, AP3 send the first discovery by broadcast mode
Request message searching can use AC.Since AC1, AC2 and AP3 be not in same double layer network, sent out therefore, it is impossible to be responded to AP3
Existing response message.But it can receive the first discovery request report with the AP3 AP1 being in same double layer network and AP2
Text, therefore, AP1 and AP2 respond the first discovery response message to AP3 respectively, and carry itself in the first discovery response message
The IP address of the AC of access, i.e. AP1 carry the IP address of AC1 in the first discovery response message of transmission, AP2 in transmission the
The IP address of AC2 is carried in one discovery response message.
After AP3 receives the first discovery response message that AP1 and AP2 is sent, obtain AC1's from the first discovery response message
The available AC of the IP address of IP address and AC2, i.e. indirect gain into current network.AP3 is according to the IP address information of acquisition point
The second discovery request message of unicast is not sent to AC1 and AC2.AC1 and AC2 based on the received respond by the second discovery request message
Second discovery response message, and respective device status information is carried in the second discovery response message of response.
It is assumed that AP3 selects access AC according to the loading condition of AC, is then known in AC1 as AP3 according to device status information and connect
When the AP quantity entered is less than the AP quantity accessed in AC2, AC1 access is selected, and then establish CAPWAP tunnel with AC1 and carry out data
Transmission.
It, can be by same double layer network it can be seen from foregoing description when AP, which can not directly have found, to use AC
Other available AC accessed in AP acquisition current network, the probability of AC can be used by improving AP discovery, and simplify system configuration,
An online AP is only needed to configure in same double layer network, and the access of other AP in the double layer network can be realized.
Corresponding with the aforementioned AP access embodiment of method of AC, present invention also provides the implementations of the device of AP access AC
Example.
The embodiment of the device of the application AP access AC can be applied on the first AP or the 2nd AP.Installation practice can be with
By software realization, can also be realized by way of hardware or software and hardware combining.Taking software implementation as an example, it is patrolled as one
The device in meaning is collected, is that corresponding computer program instructions are formed in the processor run memory by equipment where it
's.For hardware view, as shown in figure 4, a kind of hardware structure diagram of equipment where accessing the device of AC for the application AP, is removed
Except processor shown in Fig. 4, network interface and memory, the equipment in embodiment where device sets generally according to this
Standby actual functional capability can also include other hardware, repeat no more to this.
Referring to FIG. 5, accessing the structural schematic diagram of AC device for the AP in the application one embodiment.The AP accesses AC dress
It sets including transmission unit 501, receiving unit 502 and selecting unit 503, in which:
Transmission unit 501, for sending the first discovery request message by broadcast mode；
Receiving unit 502, the first discovery responded for receiving the 2nd AP according to the first discovery request message
Response message, described first finds to carry the IP address that the 2nd AP has accessed AC in response message；
Selecting unit 503, the IP address for having accessed AC according to the 2nd AP select to be accessed with AC.
Further,
The selecting unit 503, specifically for having accessed the IP address of AC according to the 2nd AP to the 2nd AP
It accesses AC and sends the second discovery request message；It receives the 2nd AP and has accessed AC according to the second discovery request message response
Second discovery response message, it is described second discovery response message in carry the 2nd AP accessed AC equipment state letter
Breath；The available AC access of the device status information selection best performance of AC has been accessed according to the 2nd AP.
Referring to FIG. 6, accessing the structural schematic diagram of AC device for the AP in the application one embodiment.The AP accesses AC dress
It sets including receiving unit 601 and responds unit 602, in which:
Receiving unit 601, the first discovery request message sent for receiving the first AP by broadcast mode；
Unit 602 is responded, for responding the first discovery response report of the first discovery request message to the first AP
Text carries the IP address for having accessed AC in the first discovery response message, so that the first AP is according to the IP of the AC
Location selection can be accessed with AC.
Further,
The response unit 602 has accessed the IP address of AC specifically for obtaining；The IP address for having accessed AC is added
It is added in the first discovery response message；The first discovery response message is responded to the first AP.
The function of each unit and the realization process of effect are specifically detailed in the above method and correspond to step in above-mentioned apparatus
Realization process, details are not described herein.
For device embodiment, since it corresponds essentially to embodiment of the method, so related place is referring to method reality
Apply the part explanation of example.The apparatus embodiments described above are merely exemplary, wherein described be used as separation unit
The unit of explanation may or may not be physically separated, and component shown as a unit can be or can also be with
It is not physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to actual
The purpose for needing to select some or all of the modules therein to realize application scheme.Those of ordinary skill in the art are not paying
Out in the case where creative work, it can understand and implement.
The foregoing is merely the preferred embodiments of the application, not to limit the application, all essences in the application
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the application protection.
Claims (8)
1. a kind of method of access point AP access access controller AC, which is characterized in that the first AP and the 2nd AP is located at same two
Layer network, wherein the first AP is the AP of AC to be accessed, and the 2nd AP is the AP for having accessed AC, the first AP and AC
It is not belonging to same double layer network, the IP address of AC is not configured in the first AP, and the first AP can not pass through DHCP service
Device and dns server obtain the IP address of AC, and this method is applied to the first AP, comprising:
The first discovery request message is sent by broadcast mode；
Receive the first discovery response message that the 2nd AP is responded according to the first discovery request message, first discovery
The IP address that the 2nd AP has accessed AC is carried in response message；
It can be accessed with AC according to the IP address selection that the 2nd AP has accessed AC.
2. the method as described in claim 1, which is characterized in that the IP address for having accessed AC according to the 2nd AP selects
It can be accessed with AC, comprising:
AC, which has been accessed, to the 2nd AP according to the IP address that the 2nd AP has accessed AC sends the second discovery request message；
It receives the 2nd AP and has accessed the second discovery response message that AC is responded according to the second discovery request message, it is described
The device status information that the 2nd AP has accessed AC is carried in second discovery response message；
The available AC access of the device status information selection best performance of AC has been accessed according to the 2nd AP.
3. a kind of method of access point AP access access controller AC, which is characterized in that the first AP and the 2nd AP is located at same two
Layer network, wherein the first AP is the AP of AC to be accessed, and the 2nd AP is the AP for having accessed AC, the first AP and AC
It is not belonging to same double layer network, the IP address of AC is not configured in the first AP, and the first AP can not pass through DHCP service
Device and dns server obtain the IP address of AC, and this method is applied to the 2nd AP, comprising:
Receive the first discovery request message that the first AP is sent by broadcast mode；
The first discovery response message of the first discovery request message, the first discovery response report are responded to the first AP
The IP address for having accessed AC is carried in text, so that the first AP can be accessed according to the selection of the IP address of the AC with AC.
4. method as claimed in claim 3, which is characterized in that described to respond the first discovery request report to the first AP
First discovery response message of text, comprising:
Obtain the IP address for having accessed AC；
The IP address for having accessed AC is added in the first discovery response message；
The first discovery response message is responded to the first AP.
5. a kind of device of access point AP access access controller AC, which is characterized in that the first AP and the 2nd AP is located at same two
Layer network, wherein the first AP is the AP of AC to be accessed, and the 2nd AP is the AP for having accessed AC, the first AP and AC
It is not belonging to same double layer network, the IP address of AC is not configured in the first AP, and the first AP can not pass through DHCP service
Device and dns server obtain the IP address of AC, which is applied to the first AP, comprising:
Transmission unit, for sending the first discovery request message by broadcast mode；
Receiving unit, the first discovery response report responded for receiving the 2nd AP according to the first discovery request message
Text, described first finds to carry the IP address that the 2nd AP has accessed AC in response message；
Selecting unit, the IP address for having accessed AC according to the 2nd AP select to be accessed with AC.
6. device as claimed in claim 5, it is characterised in that:
The selecting unit, the IP address specifically for having accessed AC according to the 2nd AP have accessed AC hair to the 2nd AP
Send the second discovery request message；It receives the 2nd AP and has accessed the second hair that AC is responded according to the second discovery request message
Existing response message, described second finds to carry the device status information that the 2nd AP has accessed AC in response message；According to institute
State the available AC access that the 2nd AP has accessed the device status information selection best performance of AC.
7. a kind of device of access point AP access access controller AC, which is characterized in that the first AP and the 2nd AP is located at same two
Layer network, wherein the first AP is the AP of AC to be accessed, and the 2nd AP is the AP for having accessed AC, the first AP and AC
It is not belonging to same double layer network, the IP address of AC is not configured in the first AP, and the first AP can not pass through DHCP service
Device and dns server obtain the IP address of AC, which is applied to the 2nd AP, comprising:
Receiving unit, the first discovery request message sent for receiving the first AP by broadcast mode；
Unit is responded, it is described for responding the first discovery response message of the first discovery request message to the first AP
The IP address for having accessed AC is carried in first discovery response message, so that the first AP can according to the selection of the IP address of the AC
It is accessed with AC.
8. device as claimed in claim 7, it is characterised in that:
The response unit has accessed the IP address of AC specifically for obtaining；The IP address for having accessed AC is added to institute
It states in the first discovery response message；The first discovery response message is responded to the first AP.
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| CN201510152660.6A CN104812021B (en) | 2015-04-01 | 2015-04-01 | A kind of method and device of AP access AC |
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| CN201510152660.6A CN104812021B (en) | 2015-04-01 | 2015-04-01 | A kind of method and device of AP access AC |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105682184A (en) * | 2016-04-12 | 2016-06-15 | 上海斐讯数据通信技术有限公司 | Method and system for discovering cloud access controller via access point |
| CN106453678B (en) * | 2016-09-29 | 2020-01-21 | 北京东土科技股份有限公司 | IP address configuration method and system |
| CN106817692A (en) * | 2017-03-16 | 2017-06-09 | 上海斐讯数据通信技术有限公司 | The collocation method and WAP of a kind of WAP |
| CN107071082A (en) * | 2017-03-22 | 2017-08-18 | 上海斐讯数据通信技术有限公司 | The acquisition methods and system of a kind of IP address of access control equipment |
| CN108901082B (en) * | 2018-06-20 | 2020-11-20 | 新华三技术有限公司 | Access method and device |
| CN113438653B (en) * | 2021-06-01 | 2024-09-24 | 紫光华山科技有限公司 | Equipment classification method and device |
| CN114363994B (en) * | 2021-09-27 | 2024-04-30 | 北京小米移动软件有限公司 | Method, device and system for node network access, electronic equipment and storage medium |
| CN115348237A (en) * | 2022-08-04 | 2022-11-15 | 广西电网有限责任公司百色供电局 | IP address configuration method and AP equipment |
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