CN106102126B - A kind of connection control method and device - Google Patents
A kind of connection control method and device Download PDFInfo
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- CN106102126B CN106102126B CN201610371222.3A CN201610371222A CN106102126B CN 106102126 B CN106102126 B CN 106102126B CN 201610371222 A CN201610371222 A CN 201610371222A CN 106102126 B CN106102126 B CN 106102126B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/02—Access restriction performed under specific conditions
- H04W48/06—Access restriction performed under specific conditions based on traffic conditions
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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
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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
Abstract
The present invention provides a kind of connection control method and device, and the method is applied to AC, which comprises when the concurrent incidence number of AP is greater than first threshold, distributes the first transient port for the AP of request access, first transient port is for making the AC to be associated such as AP；It is that the corresponding AP of first transient port creates the second transient port, the second threshold is less than first threshold when the concurrent incidence number of AP is less than or equal to second threshold；When receiving the discovery request that AP is sent from the second transient port, the port numbers of standard port are fed back into AP, so that AP is associated with AC by standard port.Therefore the present invention can control the concurrent incidence number of AP of whole net, reduce the network oscillation generated when large scale network restores by concurrency performance deficiency.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of connection control methods and device.
Background technique
With the development of wireless technology, the AP of single AC (Access Controller, access controller) management
(Access Point, access point) quantity is more and more.In this networking comprising numerous AP, when concussion (example occurs for network
As intermediate node is restarted) when, these AP would generally request Concurrency be associated with AC in a short period of time simultaneously.When a large amount of AP is associated with
When request impact AC, AC then can not can handle in time online AP keep-alive and disappear because of being busy with responding the association request of new AP
Breath, can make online AP go offline or even repeatedly go offline again, shaken repeatedly so as to cause network, recovery time is longer, influences to use
Family normal use.
Summary of the invention
In view of this, the present invention provides a kind of connection control method and device to solve a large amount of AP association AC in the prior art
The problem of caused AP goes offline repeatedly.
Specifically, the present invention is achieved through the following technical solutions:
The present invention provides a kind of connection control method, and the method is applied to access controller AC, which comprises
When the concurrent incidence number of access point AP is greater than first threshold, the AP for request access distributes the first transient port, institute
The first transient port is stated for making the AC to be associated such as AP；
When the concurrent incidence number of AP is less than or equal to second threshold, face for the corresponding AP creation second of first transient port
When port, the second threshold be less than first threshold；
When receiving the discovery request that AP is sent from the second transient port, the port numbers of standard port are fed back into AP, with
AP is set to be associated with AC by standard port.
Further, the AP for request access distributes the first transient port, specifically includes:
Judge the AP number in the waiting list in transient port whether be less than or equal to the transient port maximum processing and
AP number is sent out, if so, using the transient port as the first transient port；Face if it is not, then creating new transient port as first
When port；
The port numbers of first transient port are fed back into AP, and the AP number in the waiting list of the first transient port is added 1.
Further, the difference of the second threshold and first threshold is greater than the AP in the waiting list of the first transient port
Number.
Further, when receiving the discovery request that AP is sent from the second transient port, the method also includes:
AP number in the waiting list of second transient port is subtracted 1；
When the AP quantity zero in the waiting list of second transient port, which is recycled.
It is further, described to create the second transient port for the corresponding AP of first transient port further include:
For the second transient port, ageing timer is set；
When the ageing timer time-out of the second transient port, second transient port is recycled.
Based on identical design, the present invention also provides a kind of access control apparatus, described device is applied to access controller
AC, described device include:
Port allotting unit, for when the concurrent incidence number of access point AP is greater than first threshold, being AP points of request access
With the first transient port, first transient port is for making the AC to be associated such as AP；
Port creating unit, for being first transient port when the concurrent incidence number of AP is less than or equal to second threshold
Corresponding AP creates the second transient port, and the second threshold is less than first threshold；
Feedback unit is requested, when for requesting in the discovery for receiving AP transmission from the second transient port, by standard port
Port numbers feed back to AP, so that AP is associated with AC by standard port.
Further, the port allotting unit is specifically for the AP number judged in the waiting list in transient port
It is no less than or equal to the concurrent AP number handled with the transient port maximum, if so, using the transient port as the first transient port；
If it is not, then creating new transient port as the first transient port；The port numbers of first transient port are fed back into AP, and by
AP number in the waiting list of one transient port adds 1.
Further, described the in the second threshold in the port creating unit and the port allotting unit
The difference of one threshold value is greater than the AP number in the waiting list of the first transient port.
Further, described device further include:
Port recovery unit, for when receiving the discovery request that AP is sent from the second transient port, second temporarily to be held
AP number in the waiting list of mouth subtracts 1；When the AP quantity zero in the waiting list of second transient port, this second is faced
When port recycle.
Further, the port creating unit is also used to that ageing timer is arranged for the second transient port；Face when second
When port ageing timer time-out when, by second transient port recycle.
It can be seen that the present invention can be AP points of request access when determining that the concurrent incidence number of AP is greater than first threshold
Make the AC to be associated such as AP with the first transient port；It is described and when the concurrent incidence number of AP is dropped to less than equal to second threshold
The corresponding AP of first transient port creates the second transient port, when receiving the discovery request sent by AP from the second transient port,
The port numbers of standard port are fed back into AP again, so that AP successful association AC.Therefore the AP of the invention that can control whole net is concurrent
Incidence number reduces the network oscillation generated when large scale network restores by concurrency performance deficiency.
Detailed description of the invention
Fig. 1 is a kind of process flow diagram of one of illustrative embodiments of present invention connection control method；
Fig. 2 is interaction diagrams in a kind of illustrative embodiments of the present invention；
Fig. 3 is the hardware structure diagram of equipment where the access control apparatus in a kind of illustrative embodiments of the present invention；
Fig. 4 is a kind of building-block of logic of one of illustrative embodiments of present invention access control apparatus.
Specific embodiment
Of the existing technology in order to solve the problems, such as, the present invention provides a kind of connection control method and device, can be true
When determining the concurrent incidence number of AP greater than first threshold, make the AC to be associated such as AP for AP the first transient port of distribution of request access；And
It is that the corresponding AP creation second of first transient port is interim when the concurrent incidence number of AP is dropped to less than equal to second threshold
Port receives when being requested by the discovery that AP is sent from the second transient port, then the port numbers of standard port is fed back to AP, so that
AP successful association AC.Therefore the present invention can control the concurrent incidence number of AP of whole net, reduce when large scale network restores because simultaneously
The network oscillation that volatility deficiency generates.
Referring to FIG. 1, be a kind of process flow diagram of one of illustrative embodiments of present invention connection control method,
This method is applied to AC, which comprises
Step 101, when the concurrent incidence number of AP be greater than first threshold when, for request access AP distribute the first transient port,
First transient port is for making the AC to be associated such as AP；
In the present embodiment, AP usually first sends CAPWAP (Control And Provisioning of Wireless
Access Points Protocol Specification, the control of wireless access point and configuration protocol) it finds to request to AC,
If receiving the standard port of AC response, continue to send association request to the standard port.If AP does not receive the discovery from AC
Response after then waiting for a period of time, retransmits CAPWAP discovery request, and the discovery until receiving AC responds.When AC receives AP
When the discovery request of transmission, judges the concurrent incidence number of the AP on current AC and whether be greater than preset first threshold, described first
Threshold value can be the maximum concurrent incidence number of AP that AC is capable of handling.When the concurrent incidence number of AP is greater than first threshold, illustrate that AC does not have
Have the ability the current AP for requesting access of processing, therefore AC can distribute the first transient port, first transient port for the AP
AP for organizing-request access is waited to be associated with AC.After AP receives the first transient port, it can be thought as the port of connection AC, because
This can send discovery request to first transient port, when receiving the discovery request that AP is sent from the first transient port due to AC,
It can be abandoned by the IP protocol stack of AC, to will not influence the normal operation of AC.
Step 102, when the concurrent incidence number of AP is less than or equal to second threshold, be first transient port corresponding AP wound
The second transient port is built, the second threshold is less than first threshold；
In the present embodiment, second threshold can be further set, and the second threshold is less than first threshold.When AC is detected
When dropping to less than to the concurrent incidence number of current AP equal to second threshold, illustrate that AC currently has the ability to handle the association request of AP,
Therefore AC can create the second transient port for the corresponding AP of first transient port, and second transient port is corresponding
Port numbers are sent to AP, so that AP sends discovery request to the port numbers.When all APs of the AC into the first transient port are sent out
After the port numbers for sending the second transient port, the first transient port can be recycled.
Step 103, when receiving the discovery that AP is sent from the second transient port and requesting, the port numbers of standard port are fed back
To AP, so that AP is associated with AC according to standard port.
When AC, which receives the discovery that AP is sent from the second transient port, to be requested, the port numbers of standard port can be fed back to
The AP, so that the AP sends discovery request to standard port, since the received discovery request of standard port will not be by IP protocol stack
It abandons, therefore AP can be further operation associated with AC completion.
Compared with the prior art, the present invention can control the number of AC processing associated AP according to the actual treatment ability of AC
Amount, the concurrent incidence number of AP so as to control whole net are reduced when large scale network restores because of the generation of concurrency performance deficiency
Network oscillation.
It, can be further when AC determines that the concurrent incidence number of AP is greater than first threshold in optional embodiment of the present invention
All transient ports are traversed, it is judged whether or not idle transient port, if so, interim using the transient port as first
Port；If it is not, then creating new transient port as the first transient port.Specifically, AC may determine that each transient port
In etc. AP number to be processed whether be less than or equal to the transient port maximum processing concurrent AP number, if so, illustrating that this faces
When port be idle port, therefore AP can be fed back to using the transient port as the first transient port；If it is not, then illustrating that this faces
When port be busy port, therefore can continue to judge whether other transient ports are idle port according to the method described above；If
There is no idle port, then creates new transient port as the first transient port and feed back to AP.Then AC can be interim by first
The port numbers of port feed back to AP, and the AP number in the waiting list of the first transient port is added 1.
If will lead to AC in view of second threshold and first threshold difference are smaller and frequently create the second transient port,
To which the working efficiency of AC can be reduced；If difference is larger, will lead to the AP in waiting list can not be associated with always AC, influence
User experience.Therefore in optional embodiment of the present invention, further second threshold is limited, i.e., the described second threshold with
The difference of first threshold is greater than the AP number in the waiting list of the first transient port, it can be understood as when the capable processing first of AC is faced
When port waiting list in all AP when, just can for first transient port create the second transient port, so as to will
AP in first transient port waiting list is directed to the processing of the second transient port, thus after the first transient port of release is to make
With.Therefore the present invention can further control the AP quantity of AC processing, reduce network oscillation, improve user experience.
It, can be with when AC receives from the second transient port the access request that AP is sent in optional embodiment of the present invention
AP number in the waiting list of second transient port is subtracted 1；Also, the AP quantity in the waiting list of second transient port
When zero, which is recycled.
In addition to this, ageing timer can also be arranged for the second transient port when creating the second transient port in AC；When
After the ageing timer time-out of second transient port, second transient port is recycled, so as to improve port utilization ratio.
To make the objectives, technical solutions, and advantages of the present invention more comprehensible, below with reference to Fig. 2 to the program of the present invention
It is described in further detail.
It when AC starting, can monitor standard port (Ps), when AP initialization connects, send discovery to standard port Ps and ask
Ask, the interaction diagrams between AC and a certain AP as shown in Fig. 2, including:
Step 201, AP send discovery request to the standard port of AC；
Step 202, AC judge whether current concurrent associated AP number is greater than maximum when standard port receives discovery request
Concurrent incidence number Nx；
Assuming that the concurrent associated AP number Nx of the maximum of AC is 100, if the concurrent incidence number of current AP is that 80, AC can handle
The AP of current all request accesses, then feed back in the discovery response of AP and do not carry port numbers；If current AP is concurrently associated with
Number is 150, then it is to be processed to can handle wherein 100 AP residues, 50 AP etc. by AC；Then AC further it is judged whether or not
Idle transient port, specific judgment method can the AP number in the waiting list of more each transient port whether be less than or equal to
The threshold value of the transient port, such as AP number in the waiting list of some transient port are 30, and threshold value 50, then this faces
When port be idle transient port, it is on the contrary then be busy transient port.It, can should if available free transient port
Transient port Px distributes to AP；Idle port or currently without any transient port if it does not exist, then it is random to calculate new faces
When port Px distribute to AP.
The port numbers Px of the transient port is added to waiting port list by step 203, and by transient port Px etc.
Add 1 to the AP number in queue；
Step 204, AC feed back to AP discovery response, carry transient port Px in discovery response；
When AP receives discovery response, if not carrying transient port Px wherein, discovery is sent to standard port Ps and is asked
It asks, carries out subsequent association operation；
If carrying transient port Px in the discovery response that step 205, AP are received, AP starts a longer aging
Timer T (such as 5 minutes)；
Step 206, AP send discovery request to transient port Px according to certain intervals (such as 2s)；
Step 207, before AC actual creation corresponding ports, when receive the discovery request when, the IP protocol stack meeting of AC
Abandon discovery request.
In order to avoid AC port resource is insufficient, if the ageing timer T time-out of AP, AP should be retransmitted to standard port Ps
It was found that request.
Step 208, when the concurrent associated AP number of AC drops to lowest limit Ny, create interim discovery port Py；
(it is assumed to be 10, it is contemplated herein that should not frequently create to AC when the concurrent associated AP number of AC drops to lowest limit Ny
New port, therefore should have certain difference between Nx and Ny), AC is from the waiting list of transient port, according to m AP number (its
Middle m is less than or equal to Nx-Ny) it is the interim discovery port Py of these AP creation and feeds back to AP, and it is (false to start port existence timer
It is set as 5 minutes), then these AP are deleted from the waiting list at place before.
Step 209, AP send discovery request to interim discovery port Py；
After step 210, AC receive the discovery request of AP on temporarily discovery port Py, the Py waiting AP number recorded is subtracted 1；
Standard port Ps is filled in discovery response by step 211, AC is sent to AP；
After step 212, AP receive discovery response, discovery request is sent to standard port Ps again；
Whether step 213, the current concurrent associated AP number of AC judgement are greater than maximum concurrent incidence number Nx, if otherwise discovery response
In do not carry port numbers；
The discovery that step 214, AC transmission do not carry transient port number responds to AP；
Step 215, AP and AC complete normal association operation；
Step 216, when temporarily discovery port Py on record waiting AP number zero after, AC will temporarily find port Py return
It receives, and closes its corresponding port Socket.
In order to cope with the case where midway AP is left or is directly linked standard port, when temporarily, discovery port Py life span is arrived
It reaches, also recycles the interim discovery port Py, and close its corresponding port Socket.
It can be seen that the present invention can control the concurrent incidence number of AP of whole net, reduce when large scale network restores because concurrent
The network oscillation that performance deficiency generates.
Based on identical design, the present invention also provides a kind of access control apparatus, the device can by software realization,
It can be realized by way of hardware or software and hardware combining.Taking software implementation as an example, access control apparatus conduct of the invention
Device on one logical meaning is to be read computer program instructions corresponding in memory by the CPU of device where it
After run.
Fig. 3 and Fig. 4 is please referred to, is a kind of one of illustrative embodiments of present invention access control apparatus 400, it is described
Device is applied to AC, and the basic running environment of the device includes CPU, memory and other hardware, should from logic level
Device 400 includes:
Port allotting unit 401, for distributing first for request access AP when the concurrent incidence number of AP is greater than first threshold
Transient port, first transient port is for making the AC to be associated such as AP；
Port creating unit 402, for when the concurrent incidence number of AP is less than or equal to second threshold, being the described first interim end
The corresponding AP of mouth creates the second transient port, and the second threshold is less than first threshold；
Feedback unit 403 is requested, when for requesting in the discovery for receiving AP transmission from the second transient port, by standard port
Port numbers feed back to AP so that AP is associated with AC by standard port.
Optionally, the port allotting unit 401 is specifically for the AP number judged in the waiting list in transient port
It is no less than or equal to the concurrent AP number handled with the transient port maximum, if so, using the transient port as the first transient port；
If it is not, then creating new transient port as the first transient port；The port numbers of first transient port are fed back into AP, and by
AP number in the waiting list of one transient port adds 1.
Optionally, the second threshold in the port creating unit 402 and the institute in the port allotting unit 401
The difference of first threshold is stated greater than the AP number in the waiting list of the first transient port.
Optionally, described device further include:
Port recovery unit 404, it is interim by second when for being requested in the discovery for receiving AP transmission from the second transient port
AP number in the waiting list of port subtracts 1；When in the waiting list of second transient port AP quantity zero when, by this second
Transient port recycling.
Optionally, the port creating unit 402 is also used to that ageing timer is arranged for the second transient port；When second
When the ageing timer time-out of transient port, second transient port is recycled.
Of the existing technology in order to solve the problems, such as, the present invention provides a kind of connection control method and device, can be true
When determining the concurrent incidence number of AP greater than first threshold, make the AC to be associated such as AP for AP the first transient port of distribution of request access；And
It is that the corresponding AP creation second of first transient port is interim when the concurrent incidence number of AP is dropped to less than equal to second threshold
Port receives when being requested by the discovery that AP is sent from the second transient port, then the port numbers of standard port is fed back to AP, so that
AP successful association AC.Therefore the present invention can control the concurrent incidence number of AP of whole net, reduce when large scale network restores because simultaneously
The network oscillation that volatility deficiency generates.
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 illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the present invention.
Claims (10)
1. a kind of connection control method, which is characterized in that the method is applied to access controller AC, which comprises
When the concurrent incidence number of access point AP is greater than first threshold, the first transient port is distributed for the AP of request access, described the
One transient port is for making the AC to be associated such as AP；
It is the corresponding AP creation second of first transient port temporarily end when the concurrent incidence number of AP is less than or equal to second threshold
Mouthful, the second threshold is less than first threshold；
When receiving the discovery request that AP is sent from the second transient port, the port numbers of standard port are fed back into AP, so that AP
AC is associated with by standard port.
2. the method according to claim 1, wherein it is described for request access AP distribute the first transient port,
It specifically includes:
Judge whether the AP number in the waiting list in transient port is less than or equal to the concurrent AP with transient port maximum processing
Number, if so, using the transient port as the first transient port；If it is not, then creating new transient port as the first interim end
Mouthful；
The port numbers of first transient port are fed back into AP, and the AP number in the waiting list of the first transient port is added 1.
3. according to the method described in claim 2, it is characterized in that,
The difference of the second threshold and first threshold is greater than the AP number in the waiting list of the first transient port.
4. according to the method described in claim 2, it is characterized in that, when receiving the discovery request that AP is sent from the second transient port
When, the method also includes:
AP number in the waiting list of second transient port is subtracted 1；
When the AP quantity zero in the waiting list of second transient port, which is recycled.
5. the method according to claim 1, wherein described for first transient port corresponding AP creation the
Two transient ports further include:
For the second transient port, ageing timer is set；
When the ageing timer time-out of the second transient port, second transient port is recycled.
6. a kind of access control apparatus, which is characterized in that described device is applied to access controller AC, and described device includes:
Port allotting unit, for when the concurrent incidence number of access point AP is greater than first threshold, for the AP distribution the of request access
One transient port, first transient port is for making the AC to be associated such as AP；
Port creating unit, for being corresponded to for first transient port when the concurrent incidence number of AP is less than or equal to second threshold
AP create the second transient port, the second threshold be less than first threshold；
Feedback unit is requested, when for requesting in the discovery for receiving AP transmission from the second transient port, by the port of standard port
Number AP is fed back to, so that AP is associated with AC by standard port.
7. device according to claim 6, which is characterized in that
Whether the port allotting unit is less than or equal to and this specifically for the AP number judged in the waiting list in transient port
The concurrent AP number of transient port maximum processing, if so, using the transient port as the first transient port；If it is not, then creation is new
Transient port as the first transient port；The port numbers of first transient port are fed back into AP, and by the first transient port
AP number in waiting list adds 1.
8. device according to claim 7, which is characterized in that
The difference of the first threshold in the second threshold and the port allotting unit in the port creating unit is big
AP number in the waiting list of the first transient port.
9. device according to claim 7, which is characterized in that described device further include:
Port recovery unit, when for being requested in the discovery for receiving AP transmission from the second transient port, by the second transient port
AP number in waiting list subtracts 1；When the AP quantity zero in the waiting list of second transient port, by the second interim end
Mouth recycling.
10. device according to claim 6, which is characterized in that
The port creating unit is also used to that ageing timer is arranged for the second transient port；When the aging of the second transient port
When timer expiry, second transient port is recycled.
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| CN111556447B (en) * | 2019-07-22 | 2021-11-02 | 新华三技术有限公司 | Information processing method and device |
| CN113518383B (en) * | 2021-06-23 | 2024-02-27 | 杭州萤石软件有限公司 | Network management method, device, system, equipment and computer readable storage medium |
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