CN102905343B - Radio switch-in method and Radio Access Controller - Google Patents
Radio switch-in method and Radio Access Controller Download PDFInfo
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- CN102905343B CN102905343B CN201210382538.4A CN201210382538A CN102905343B CN 102905343 B CN102905343 B CN 102905343B CN 201210382538 A CN201210382538 A CN 201210382538A CN 102905343 B CN102905343 B CN 102905343B
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Abstract
The invention provides a kind of radio switch-in method and Radio Access Controller AC, radio switch-in method provided by the invention comprises: obtain the access request message from access point AP; Whether then what judgement was preset exceeds the time limit timestamp; If described in exceed the time limit timestamp then, exceed the time limit described in replacement timestamp the AP sum accessed in this cycle is set to 1; If described in exceed the time limit timestamp not then, judge whether the AP sum of access of described cycle is more than or equal to default cycle access number threshold value; If so, refuse information is returned to described AP; Otherwise, return permission message to described AP.Radio switch-in method provided by the invention, by the number that controls the AP accessed in access period and the AP that accessing total, the AP limited by the method can obtain normal response setting up all CAPWAP tunnel afterwards, can not occur due to the overload of CPU that tunnel disconnects the phenomenon reconnected, thus improve the access rate of AP.
Description
Technical field
The present invention relates to the communication technology, particularly relate to a kind of radio switch-in method and Radio Access Controller (Access Controller is called for short AC).
Background technology
At WLAN (wireless local area network) (Wireless Local Area Networks, be called for short WLAN) thin access point (Access Point, be called for short AP) in framework, AP needs to set up wireless access point control and supply (Controlling and Provisioning of Wireless Access Point is called for short CAPWAP) tunnel with AC.After AC issues configuration to AP, AP could be normally that radio station (Station is called for short STA) provides various service.
In current wlan network, an AC associates thousands of AP.Limited in one's ability due to AC process load, when a large amount of AP accesses AC, the CAPWAP tunnel that AC cannot respond each AP in time sets up request, will occur that part AP sets up CAPWAP tunnel failure phenomenon.These CAPWAP tunnel are set up failed AP and are continued repeatedly to initiate to AC the request of setting up, until access successfully, therefore access efficiency is low.
Summary of the invention
First aspect of the present invention is to provide a kind of radio switch-in method, in order to solve defect of the prior art, improves access efficiency.
Another aspect of the present invention is to provide a kind of AC, in order to solve defect of the prior art, improves access efficiency.
First aspect of the present invention is to provide a kind of radio switch-in method, comprises the following steps:
Obtain the access request message from access point AP; Whether then what judgement was preset exceeds the time limit timestamp; If described in exceed the time limit timestamp then, exceed the time limit described in replacement timestamp the AP sum accessed in this cycle is set to 1; If described in exceed the time limit timestamp not then, judge whether the AP sum of access of described cycle is more than or equal to default cycle access number threshold value; If so, refuse information is returned to described AP; Otherwise, return permission message to described AP, and the AP sum of described cycle access added 1.
Method as above, wherein, after the access request message of described acquisition from access point AP, what described judgement was preset exceed the time limit timestamp whether then before, also comprise: obtain the AP sum accessed; Whether the AP sum accessed described in judgement is more than or equal to default access number threshold value; If the judgment is Yes, refuse information is returned to described AP; If the judgment is No, the timestamp whether step then of exceeding the time limit performing that described judgement presets; After judging that the AP sum of described cycle access is not greater than or equal to default cycle access number threshold value, also comprise: the described AP sum accessed is added 1.
Method as above, wherein, after the access request message of described acquisition from access point AP, what described judgement was preset exceed the time limit timestamp whether then before, also comprise: obtain the AP sum accessed; Whether the AP sum accessed described in judgement is more than or equal to default function is opened threshold value; If so, the timestamp whether step then of exceeding the time limit performing that described judgement presets; Otherwise, return to described AP and allow message and the described AP sum accessed is added 1.
Method as above, wherein, also comprises: when obtaining the update request message from described AP, the described AP sum accessed is subtracted 1; And/or, when the communication tunnel that described AP is corresponding disconnects, the described AP sum accessed is subtracted 1; And/or, when described AP enters running status, the described AP sum accessed is subtracted 1.
Another aspect of the present invention is to provide a kind of Radio Access Controller AC, comprising: receiving element, for obtaining the access request message from access point AP; Described periodic Control unit, whether then exceed the time limit timestamp for what judge to preset, if described in exceed the time limit timestamp then, exceed the time limit described in replacement timestamp the AP sum accessed in this cycle is set to 1, if described in exceed the time limit timestamp not then, open the first access control unit;
Described first access control unit, for judging whether the AP sum of described cycle access is more than or equal to default cycle access number threshold value, if, control transmitting element and return refuse information to described AP, otherwise, the AP sum of access of described cycle added 1 and controls transmitting element return permission message to described AP;
Described transmitting element, for the control according to described first access control unit, returns described refuse information or described permission message to described AP.
AC described above, wherein, also comprises: the second access control unit;
Described receiving element also for opening described second access control unit after acquisition is from the access request message of access point AP;
Described second access control unit is for obtaining the AP sum accessed, whether the AP sum accessed described in judgement is more than or equal to default access number threshold value, if the judgment is Yes, control described transmitting element and return refuse information to described AP, if the judgment is No, described periodic Control unit is opened;
Described transmitting element also for the control according to described second access control unit, returns described refuse information to described AP.
Described first access control unit also for adding 1 by the described AP sum accessed after judging that the AP of described cycle access is total to be not greater than or equal to default cycle access number threshold value.
Described second control unit also can be used for unlatching the 3rd access control unit;
AC described above, wherein, also comprises: the 3rd access control unit;
Described receiving element also for opening described 3rd access control unit after acquisition is from the access request message of access point AP;
Described 3rd access control unit is for obtaining the AP sum accessed, and whether the AP accessed described in judgement sum is more than or equal to default function is opened threshold value, if so, opens described periodic Control unit; Otherwise, control described transmitting element and return permission message to described AP and the described AP sum accessed is added 1;
Described transmitting element also for the control according to described 3rd access control unit, returns described permission message to described AP.
AC described above, wherein, also comprises:
4th access control unit, for when obtaining the update request message from described AP, subtracts 1 by the described AP sum accessed; And/or, when disconnecting for the communication tunnel corresponding as described AP, the described AP sum accessed is subtracted 1; And/or, for when described AP enters running status, the described AP sum accessed is subtracted 1.
Radio switch-in method provided by the invention, by the number that controls the AP accessed in access period and the AP that accessing total, limit the speed of AP access, guarantee that the AP that limited by the method can obtain normal response setting up all CAPWAP tunnel afterwards, can not occur due to the overload of CPU that tunnel disconnects the phenomenon reconnected, the cpu resource avoiding AC is used for processing invalid CAPWAP tunnel process of establishing, thus improve the access rate of AP, ensure that these AP can access AC rapidly and orderly.
Accompanying drawing explanation
Fig. 1 is the flow chart of the radio switch-in method of the embodiment of the present invention one;
Fig. 2 is the flow chart of the radio switch-in method of the embodiment of the present invention two;
Fig. 3 is the structural representation of the AC of the embodiment of the present invention three;
Fig. 4 is the structural representation of the AC of the embodiment of the present invention four.
Embodiment
Fig. 1 is the flow chart of the radio switch-in method of the embodiment of the present invention one.As shown in Figure 1, the radio switch-in method that the present embodiment provides, specifically comprises the steps:
Step 10, AC obtain the access request message from access point AP.
In the present embodiment, access request message can be Datagram Transport Layer safety (the Datagram Transport Layer Security that AP initiates to AC, DTLS) handshake request message, before AP initiates handshake request message to AC, AP can initiate to find (Discovery) request message to multiple AC, AP starts a timer simultaneously, this timer then after, AP selects the AC of alternative optimum from the discovery response message of the multiple AC received, DTLS handshake request is initiated to this AC, this optimum AC is that the load capacity etc. of the AC self obtained in the response message returned according to AC is determined.
Whether then what step 20, AC judgement was preset exceeds the time limit timestamp.
The timestamp that exceeds the time limit just starts timing when AC starts, and replaces timer mode with timestamp, reduces the cpu resource consumption of AC.
In step 20, if exceed the time limit timestamp then, perform step 21; If exceeded the time limit, timestamp is not then, performs step 30.
Step 21, AC reset the timestamp the AP sum accessed in this cycle is set to 1 of exceeding the time limit.
In this step, the judged result in step 20 is yes, namely exceeds the time limit timestamp then, and AC resets the timestamp that exceeds the time limit, and enter next measurement period, and the AP sum accessed in this cycle is set to 1.
Step 30, AC judge whether the AP sum that this cycle accesses is more than or equal to default cycle access number threshold value.
In this step, the ability that this cycle access number threshold value processes load according to AC self is arranged.If the judged result in step 30 is no, order performs step 40,50; If the judged result in step 30 is yes, perform step 60.
In step 40, cycle, the AP sum of access adds 1.
In this step, the judged result of step 30 is no, i.e. the AP sum of this cycle access is not greater than or equal to default cycle access number threshold value, then add 1 to the AP sum accessed in the cycle, the AP sum of access in real-time measurement period.
Step 50, AC return permission message to AP.
In this step, judged result in step 30 is no, i.e. the AP sum of this cycle access is less than default cycle access number threshold value, then AC returns permission message to AP, particularly, AC can adopt AC to send the realization of DTLS handshake response message to AP to the permission message that AP returns.
Particularly, AP is after receiving the DTLS handshake response message that AC returns, and initiate to add (Join) request message to AC, after AC receives this message that joins request, whether decision-making allows this AP to access.If AC allows this AP to access, then return to AC and add response message.AP according to receive add response message learn allow this AC of access time, then initiate configuration status request message to AC.Now AC is configured condition responsive process.Then, AP initiates to change Status Enquiry Packet, and AC continues to reply change condition responsive message.If AP receives change condition responsive message, then enter operation (Run) state, and send first part of keep-alive message by data channel to AC.Meanwhile, AP allows to send website tools platform events WTP(Web Tools Platform, WTP to AC) Event request message, for uploading self information to AC.When AC receives first part of keep-alive message of AP transmission, then also enter running status, configuring request message can be sent to AP.Now, AP successfully accesses AC, can normally for STA provides service.This is prior art, repeats no more here.
Step 60, AC return refuse information to AP.
In this step, the judged result in step 30 is yes, i.e. the AP sum of this cycle access is more than or equal to default cycle access number threshold value, then AC returns refuse information to AP.Particularly, in the present embodiment, when AC refuses the access of this AP, in order to reduce the load of self, AC does not send any refuse information to AP, and namely AC does not send DTLS handshake response message to AP; If AP does not receive the DTLS handshake response message that AC returns over time, then disconnect tunnel, again initiate to find request message to AC.
It should be noted that, due to this radio switch-in method can also be applied in other have a large amount of AP to access simultaneously when, such as a large amount of AP enters the process of upgrading simultaneously, CAPWAP tunnel all must now through re-establishing process, can limit the AP number entering upgrading with this radio switch-in method equally, ensure that these AP can the access of quickly and orderly.
The radio switch-in method that the present embodiment provides, receive the DTLS handshake request message of AP at AC after, by the AP sum accessed in restriction access period, DTLS handshake response message is replied to the AP being no more than cycle access number threshold value, this AP is allowed to access, otherwise refuse this AP to access, because the number of the AP accessed in the cycle is limited, can not more than the load treatment capacity of AC, so, the AP limited by the method can obtain normal response setting up all CAPWAP tunnel afterwards, can not occur due to the overload of CPU that tunnel disconnects the phenomenon reconnected, the cpu resource avoiding AC is used for processing invalid CAPWAP tunnel process of establishing, thus improve the access rate of AP, ensure that these AP can access AC rapidly and orderly.
Fig. 2 is the flow chart of the radio switch-in method of the embodiment of the present invention two.The radio switch-in method that the present embodiment provides, on above-mentioned basis embodiment illustrated in fig. 1, introduces technical scheme of the present invention in further detail.As shown in Figure 2, in the present embodiment, concrete steps are as follows:
Step 10, AC obtain the access request message from access point AP.
In the present embodiment, access request message can be the DTLS handshake request message that AP initiates to AC, before AP initiates handshake request message to AC, AP can initiate to find request message to multiple AC, simultaneously AP starts a timer, this timer then after, AP selects the AC of alternative optimum from the discovery response message of the multiple AC received, initiate DTLS handshake request to this AC, this optimum AC is that the load capacity etc. of the AC self obtained in the response message returned according to AC is determined.
Step 11, AC obtain the AP sum accessed, and judge whether the AP sum accessed is more than or equal to default access number threshold value.
In this step, if the judged result in step 11 is yes, perform step 60; If the judged result in step 11 is no, perform step 12.
Step 60, AC return refuse information to AP.
In this step, the judged result of step 11 is yes, and the AP sum namely accessed is more than or equal to default access number threshold value, then AC returns refuse information to AP.Particularly, when AC refuses the access of this AP, in order to reduce the load of self, AC does not send any refuse information to AP, and namely AC does not send DTLS handshake response message to AP; If AP does not receive the DTLS handshake response message that AC returns over time, then disconnect tunnel, again initiate to find request message to AC.
Step 12, AC obtain the AP sum accessed, and whether the AP sum accessed described in judging is more than or equal to default function unlatching threshold value.Described function opens threshold value needs the AP sum to accessing in the cycle to limit for judging whether, opens threshold value, then do not need to judge whether further to allow this AP to access when the AP sum accessed is not greater than or equal to default function.
In this step, judged result in step 11 is no, namely the AP sum accessed is less than default access number threshold value, then AC obtains the AP sum accessed, and whether the AP sum accessed described in judging is more than or equal to default function unlatching threshold value.
In step 12, if judged result is yes, the AP sum namely accessed is more than or equal to default function and opens threshold value, performs step 20; If judged result is no, the AP sum namely accessed is less than default function and opens threshold value, then perform step 41.
Whether then what step 20, AC judgement was preset exceeds the time limit timestamp.
In this step, the judged result of step 12 is yes, and the AP sum namely accessed is more than or equal to default function and opens threshold value, then whether then what AC judgement was preset exceeds the time limit timestamp.
The described timestamp that exceeds the time limit just starts timing when AC starts, and replaces timer mode with timestamp, reduces system CPU resource consumption.
In step 20, if judged result is yes, perform step 21, if judged result is no, perform step 30.
Step 21, reset the timestamp the AP sum accessed in this cycle is set to 1 of exceeding the time limit.
In this step, the judged result in step 20 is yes, namely exceeds the time limit timestamp then, and AC resets the timestamp that exceeds the time limit, and enter next measurement period, and the AP sum accessed in this cycle is set to 1.
After step 21, perform step 41.
Step 30, AC judge whether the AP sum of described cycle access is more than or equal to default cycle access number threshold value.
In this step, the judged result of step 20 is no, namely exceeds the time limit timestamp not then, then AC judges whether the AP sum that this cycle accesses is more than or equal to default cycle access number threshold value.
In step 30, if judged result is yes, perform step 60; If judged result is no, then order performs step 40, step 41, step 50.
Particularly, the ability that this cycle access number threshold value processes load according to AC self is arranged.
In step 40, cycle, the AP sum of access adds 1.
In this step, the judged result of step 30 is no, i.e. the AP sum of this cycle access is less than default cycle access number threshold value, then add 1 to the AP sum accessed in the cycle, the AP sum of access in real-time measurement period.
Step 41, the AP sum accessed add 1.
In this step, for the situation entering step 41 after execution step 12, the judged result due to step 12 is no, and the AP sum namely accessed is less than default function and opens threshold value, the AP sum accessed is added 1, for the AP sum that real-time renewal is accessing.For performing step 21 or performing the situation that step 40 enters step 41 afterwards, 1 is added to the AP sum accessed in the cycle, also 1 is added to the AP sum accessed simultaneously, the AP sum that real-time statistics is accessing.
Step 50, AC return permission message to AP.
Particularly, AC can adopt AC to send DTLS handshake response message to AP to the permission message that AP returns.
Step 60, AC return refuse information to AP.
Particularly, in the present embodiment, when refusing the access of this AP, in order to reduce the load of AC, AP does not send any refuse information to AC, and namely AC does not send DTLS handshake response message to AP; If AP does not receive the DTLS handshake response message that AC returns over time, then disconnect tunnel, again initiate to find request message to AC.
It should be noted that, when AC obtains the update request message from AP, the AP sum accessed is subtracted 1; And/or, when the communication tunnel that AP is corresponding disconnects, the AP sum accessed is subtracted 1; And/or, when AP enters running status, the AP sum accessed is subtracted 1.What need further illustrate is, AP is after receiving the DTLS response that AC returns, the possibility causing tunnel to disconnect due to AC overload is very little, and the communication tunnel that above-mentioned AP is corresponding disconnects and referring to, because the tunnel occurred under the fortuitous events such as the unexpected power-off of AC or AP disconnects.
It should be noted that, the step 11 in above-described embodiment 2 is optional, and after step 11 executes, directly can perform step 20, other steps perform in order successively.In this case, first the AP sum accessed is limited, to being more than or equal to the AP sum threshold value accessed, direct refusal adds, limit, therefore, it is possible to ensure that the AP number of access can not more than the load treatment capacity of AC being less than the accessing the AP in its access period further of AP sum threshold value accessed.
In the present embodiment, step 12 is also optional step, and step 12 can after step 10, and perform before step 20, other steps perform in order successively.In this case, only have when the AP sum accessed is more than or equal to function unlatching threshold value, just to the restriction accessing sum in the cycle, this AP of permission being less than function unlatching threshold value when the AP sum accessed accesses, therefore, it is possible to ensure the access AC of AP quickly and orderly.
Optionally, step 12 also can after step 11, and perform before step 20, in practical application, the load treatment capacity according to AC carrys out optimum selecting.In fig. 2, after being only positioned at step 11 with step 12, perform before step 20 as example is described in detail.
The radio switch-in method that the present embodiment provides, on the basis of embodiment one, not only the AP sum in access period is limited, also the AP sum accessed in whole access procedure is limited, therefore ensure that access number can not more than the load treatment capacity of AC, the CAPWAP tunnel set up after by DTLS handshake response can obtain normal response, can not occur due to the overload of CPU that tunnel disconnects the phenomenon reconnected, the cpu resource avoiding AC is used for processing invalid CAPWAP tunnel process of establishing, thus improve the access rate of AP, ensure that these AP can access AC rapidly and orderly.
Fig. 3 is the structural representation of the AC of the embodiment of the present invention three.As shown in Figure 3, Radio Access Controller AC provided by the invention comprises: receiving element 301, periodic Control unit 302, first access control unit 303, transmitting element 304.
Receiving element 301, for obtaining the access request message from access point AP.
Periodic Control unit 302, obtain after from the access request message of AP at AC, whether then exceed the time limit timestamp for what judge to preset, if exceeded the time limit, timestamp then, exceed the time limit described in replacement timestamp the AP sum accessed in this cycle is set to 1, if exceeded the time limit, timestamp is not then, opens the first access control unit 303.
First access control unit 303, for judging whether the AP sum that this cycle accesses is more than or equal to default cycle access number threshold value, if, first access control unit 303 controls transmitting element 304 and returns refuse information to AP, otherwise the AP sum that this cycle is accessed by the first access control unit 303 adds 1 and controls transmitting element 304 and returns permission message to AP.
Transmitting element 304, for the control according to the first access control unit 303, returns refuse information to AP or allows message.
The AC that the present embodiment provides, when a large amount of AP accesses simultaneously, by limiting the number of the AP accessed in predetermined period, the access quantity of AP is made to adapt to the load treatment capacity of AC, the possibility that access procedure tunnel after can reducing AP like this disconnects, avoid the cpu resource of AC for the treatment of invalid CAPWAP tunnel process of establishing, ensure the access AC of AP quickly and orderly, also improve the efficiency of AC simultaneously.
Fig. 4 is the structural representation of the AC of the embodiment of the present invention four.On basis embodiment illustrated in fig. 3, alternatively, described AC can also comprise the second access control unit 313, and receiving element 301 also for opening the second access control unit 313 after acquisition is from the access request message of access point AP.Second access control unit 313, for obtaining the AP sum accessed, judges whether the AP sum accessed is more than or equal to default access number threshold value.If the judgment is Yes, the second access control unit 313 controls transmitting element 304 and returns refuse information to AP; If the judgment is No, the second access control unit 313 opens periodic Control unit 302, and whether then periodic Control unit 302 exceeds the time limit timestamp for what judge to preset.If exceeded the time limit, timestamp then, and periodic Control unit 302 resets the timestamp the AP sum accessed in this cycle is set to 1 of exceeding the time limit; If exceeded the time limit, timestamp is not then, and periodic Control unit 302 opens the first access control unit 303.First access control unit 303, for judging whether the AP sum that this cycle accesses is more than or equal to default cycle access number threshold value, if, first access control unit 303 controls transmitting element 304 and returns refuse information to AP, otherwise the first access control unit 303 controls transmitting element 304 and returns permission message to AP.
Alternatively, described AC can also comprise the 3rd access control unit 323; Receiving element 301 also for opening the 3rd access control unit 323 after acquisition is from the access request message of access point AP; 3rd access control unit 323, for obtaining the AP sum accessed, judges whether the AP sum accessed is more than or equal to default function and opens threshold value, and if so, the 3rd access control unit 323 opens periodic Control unit 302; Otherwise the 3rd access control unit 323 controls transmitting element 304 and returns permission message to AP and the AP sum accessed is added 1; Transmitting element 304 also for the control according to the 3rd access control unit 323, returns permission message to AP.
Further, the second access control unit 313 is also for when being judged as NO, and the AP sum namely accessed is not greater than or equal to default access number threshold value, opens the 3rd access control unit 323.
In the present embodiment, the first access control unit 303 is also for judging that the AP sum accessed is added 1 after being not greater than or equal to default cycle access number threshold value by AP sum that this cycle accesses.
Further, described AC also comprises:
4th access control unit 333, for when obtaining the update request message from AP, subtracts 1 by the AP sum accessed; And/or, when disconnecting for the communication tunnel corresponding as AP, the AP sum accessed is subtracted 1; And/or, for when AP enters running status, the AP sum accessed is subtracted 1.
The AC that the present embodiment provides, when a large amount of AP accesses simultaneously, not only the AP sum in access period is limited, also the AP sum accessed in whole access procedure is limited, therefore ensure that access sum can not more than the load treatment capacity of AC, very little by the possibility that tunnel disconnects in access procedure of the AP after restriction, avoid the cpu resource of AC for the treatment of invalid CAPWAP tunnel process of establishing, ensure the access AC of AP quickly and orderly, also improve the efficiency of AC simultaneously.
Radio switch-in method provided by the invention and Radio Access Controller, when escalation process is entered for a large amount of AP, can use equally simultaneously, be entered the AP number of upgrading by restriction simultaneously, guarantee that AC can respond each AP interactive operation of upgrading in time, avoid the phenomenon occurring that upgrading is failed.
Last it is noted that above each embodiment is only in order to illustrate technical scheme of the present invention, be not intended to limit; Although with reference to foregoing embodiments to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of various embodiments of the present invention technical scheme.
Claims (8)
1. a cut-in method, is characterized in that, comprising:
Obtain the access request message from access point AP;
Whether then what judgement was preset exceeds the time limit timestamp;
If described in exceed the time limit timestamp then, exceed the time limit described in replacement timestamp the AP sum accessed in this cycle is set to 1;
If described in exceed the time limit timestamp not then, judge whether the AP sum of access of described cycle is more than or equal to default cycle access number threshold value;
If so, refuse information is returned to described AP;
Otherwise, return to described AP and allow message and the AP sum of described cycle access is added 1.
2. method according to claim 1, is characterized in that, after the access request message of described acquisition from access point AP, what described judgement was preset exceed the time limit timestamp whether then before, also comprise:
Obtain the AP sum accessed;
Whether the AP sum accessed described in judgement is more than or equal to default access number threshold value;
If the judgment is Yes, refuse information is returned to described AP;
If the judgment is No, the timestamp whether step then of exceeding the time limit performing that described judgement presets;
After judging that the AP sum of described cycle access is not greater than or equal to default cycle access number threshold value, also comprise:
The described AP sum accessed is added 1.
3. method according to claim 1, is characterized in that, after the access request message of described acquisition from access point AP, what described judgement was preset exceed the time limit timestamp whether then before, also comprise:
Obtain the AP sum accessed;
Whether the AP sum accessed described in judgement is more than or equal to default function is opened threshold value;
If so, the timestamp whether step then of exceeding the time limit performing that described judgement presets;
Otherwise, return to described AP and allow message and the described AP sum accessed is added 1.
4. method according to claim 2, is characterized in that, also comprises:
When obtaining the update request message from described AP, the described AP sum accessed is subtracted 1;
And/or, when the communication tunnel that described AP is corresponding disconnects, the described AP sum accessed is subtracted 1;
And/or, when described AP enters running status, the described AP sum accessed is subtracted 1.
5. a Radio Access Controller AC, is characterized in that, comprising:
Receiving element, for obtaining the access request message from access point AP;
Described periodic Control unit, whether then exceed the time limit timestamp for what judge to preset, if described in exceed the time limit timestamp then, exceed the time limit described in replacement timestamp the AP sum accessed in this cycle is set to 1, if described in exceed the time limit timestamp not then, open the first access control unit;
Described first access control unit, for judging whether the AP sum of described cycle access is more than or equal to default cycle access number threshold value, if, control transmitting element and return refuse information to described AP, otherwise, the AP sum of access of described cycle added 1 and controls transmitting element return permission message to described AP;
Described transmitting element, for the control according to described first access control unit, returns described refuse information or described permission message to described AP.
6. AC according to claim 5, is characterized in that, also comprises: the second access control unit;
Described receiving element also for opening described second access control unit after acquisition is from the access request message of access point AP;
Described second access control unit is for obtaining the AP sum accessed, whether the AP sum accessed described in judgement is more than or equal to default access number threshold value, if the judgment is Yes, control described transmitting element and return refuse information to described AP, if the judgment is No, described periodic Control unit is opened;
Described transmitting element also for the control according to described second access control unit, returns described refuse information to described AP;
Described first access control unit also for adding 1 by the described AP sum accessed after judging that the AP of described cycle access is total to be not greater than or equal to default cycle access number threshold value.
7. AC according to claim 5, is characterized in that, also comprises: the 3rd access control unit;
Described receiving element also for opening described 3rd access control unit after acquisition is from the access request message of access point AP;
Described 3rd access control unit is for obtaining the AP sum accessed, and whether the AP accessed described in judgement sum is more than or equal to default function is opened threshold value, if so, opens described periodic Control unit; Otherwise, control described transmitting element and return permission message to described AP and the described AP sum accessed is added 1;
Described transmitting element also for the control according to described 3rd access control unit, returns described permission message to described AP.
8. AC according to claim 6, is characterized in that, also comprises:
4th access control unit, for when obtaining the update request message from described AP, subtracts 1 by the described AP sum accessed; And/or, when disconnecting for the communication tunnel corresponding as described AP, the described AP sum accessed is subtracted 1; And/or, for when described AP enters running status, the described AP sum accessed is subtracted 1.
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| CN103338524B (en) * | 2013-06-03 | 2016-05-25 | 福建星网锐捷网络有限公司 | Radio switch-in method, Apparatus and system, access controller, access point apparatus |
| CN106102126B (en) * | 2016-05-27 | 2019-09-06 | 新华三技术有限公司 | A kind of connection control method and device |
| CN106304407B (en) * | 2016-07-28 | 2021-02-23 | 新华三技术有限公司 | Communication method and device |
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