CN103546915A - Method and device for controlling wireless access point by wireless network access controller - Google Patents
Method and device for controlling wireless access point by wireless network access controller Download PDFInfo
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- CN103546915A CN103546915A CN201310514338.4A CN201310514338A CN103546915A CN 103546915 A CN103546915 A CN 103546915A CN 201310514338 A CN201310514338 A CN 201310514338A CN 103546915 A CN103546915 A CN 103546915A
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Abstract
The invention provides a method and device for controlling a wireless access point by a wireless network access controller. According to the method and device for controlling the wireless access point by the wireless network access controller, the AP is connected with the AC through a wired network and receives a message which is sent by the AC and used for setting the AP to be a main control AP, the main control AP is used for broadcasting an identity recognition message outwards, the identity recognition message is received by other APs which are covered by the main control AP radio frequency, and the other APs are ordered to set the identify labels of themselves to be ordinary APs; the main control AP is connected with the ordinary APs in a wireless mode and sends the wireless service configuration of itself to the ordinary APs so that the ordinary APs can carry out self configuration according to the wireless service configuration of the main control AP; the main control AP sends the client side information passing through the up line of the main control AP and received client side information passing through the up line of the ordinary APs to the AC, and then client side authentication processing is carried out by the AC. The method and device for controlling the wireless access point by the wireless network controller have the advantages that one virtual AP is automatically formed by multiple APs which are covered by the radio frequency and are located in the same electromagnetic space, the AC can be connected with the main control AP only through the wired network and arrange and manage the main control AP, dependence on the wired network is reduced, and arrangement of the AC end is simplified.
Description
Technical field
The present invention relates to radio network technique field, relate in particular to method and device thereof that a kind of wireless network access controller is controlled WAP (wireless access point).
Background technology
Wireless access point AP (Access Point) is a wireless transmitting-receiving equipments.Become wireless signal to send the data transaction for example, receiving from cable network (Internet), the wireless signal receiving is converted to data and is forwarded to cable network.Wireless network access controller AC(Access Controller) for completing the authentication/functions such as configuration/data retransmission to wireless user, play central controlled effect.CAPWAP (Control And Provisioning of Wireless Access Points Protocol Specification) is the standard control protocol between AC and AP, and user's datagram protocol UDP service, adopts fixing port numbers.
Referring to Fig. 1, wireless network adopts centralized control framework, and AC controls many AP, between AC and AP, by layer 2 ethernet switch, is connected.For realizing centralized control, AC and each AP can set up CAPWAP tunnel, and tunnel must be set up by cable network.Many AP reach the standard grade and must by cable network and AC, connect respectively, download AP configuration separately respectively from AC.When therefore, prior art is disposed new AP in network, must rely on cable network.And described AC will dispose a plurality of AP of management.
Summary of the invention
In view of this, the invention provides a kind of wireless network access controller and control method and the device thereof of WAP (wireless access point), its a plurality of AP that automatically radio frequency in same electromagnetic space covered are mutually virtual is an AP, AC only needs to be connected master control AP and disposed management master control AP by cable network, thereby reduced the dependence to cable network, simplified the deployment of AC end.
The invention provides a kind of wireless network access controller and control the method for WAP (wireless access point), be applied on network access controller AC.Described AC is for managing the wireless access point AP that at least two radio frequencies cover mutually.
Described method comprises:
Described AC is connected by CAPWAP with one of them AP through cable network, and after described AP reaches the standard grade, to notify it be master control AP.
Described AC issues wireless service configuration to master control AP, by master control AP, is carried out accordingly self configuration and described radio configuration is handed down to the common AP that is connected with this master control AP to be configured.
Described AC receives the client-side information of master control AP transmission and carries out client certificate processing, and described client-side information comprises the client-side information of reaching the standard grade from master control AP and the client-side information of reaching the standard grade from common AP.
A kind of method that the present invention also provides wireless network access controller to control WAP (wireless access point), is applied in the wireless access point AP of network access controller AC management.
Described AP is connected by CAPWAP with AC through cable network, and receives the notice for master control AP that is set of described AC transmission.
Described master control AP by radio frequency overseas broadcast identification message, declares its master control AP identity, and described identification message is received by other AP that mutually cover with described master control AP radio frequency, and to make other AP be common AP by the identify label of oneself.
Described master control AP sets up wireless CAPWAP with common AP and is connected, and master control AP gives common AP by its wireless service configuration distributing, so that common AP carries out self configuration accordingly.
Described master control AP sends to described AC by the client-side information of reaching the standard grade by it and the client-side information that common AP reaches the standard grade that passes through that receives, and by described AC, carries out client certificate processing.
Further, the inventive method also comprises:
Described master control AP is further synchronized to all client-side informations each coupled common AP.
Described master control AP receives the message that the first common AP forwards, the destination address of described message is the second client, source address is the first client, and wherein said the first client is the client of reaching the standard grade by the first common AP, and the second client is the client of reaching the standard grade by the second common AP; And described message is the first common AP while recording the information of the second client that the destination address of described message is corresponding in judging described all client-side informations, is forwarded to described master control AP's.
Described master control AP, according to the destination address of described message, determines the second common AP corresponding to the second client that described destination address is corresponding, by described message repeating, gives the second common AP.
When further, master control AP of the present invention is by radio frequency overseas broadcast identification message, also to provide wireless service.
Further, master control AP of the present invention is by carry master control AP identity information TLV in beacon frame definition Beacon message by radio frequency overseas broadcast identification message.
Further, master control AP of the present invention sets up wireless CAPWAP with common AP and is connected, and is that described common AP launches the mutual message of reaching the standard grade of CAPWAP by radio frequency network and carries out.
The present invention also provides a kind of wireless network access controller to control the device of WAP (wireless access point), is applied on network access controller AC.Described AC is for managing the wireless access point AP that at least two radio frequencies cover mutually.
Described device comprises:
Master control AP setup unit, for when described AC is when cable network is connected by CAPWAP with one of them AP, after described AP reaches the standard grade, notifying it is master control AP.
Service configuration unit, for issue wireless service configuration to master control AP, is carried out accordingly self configuration and described radio configuration is handed down to the common AP that is connected with this master control AP to be configured by master control AP.
Information receiving unit, for receiving the client-side information of master control AP transmission and carrying out client certificate processing, described client-side information comprises the client-side information of reaching the standard grade from master control AP and the client-side information of reaching the standard grade from common AP.
The device that the present invention also provides a kind of wireless network access controller to control WAP (wireless access point), is applied in the wireless access point AP of network access controller AC management.
Notice receiving element, for when described AP is when cable network is connected by CAPWAP with AC, receives the notice for master control AP that is set of described AC transmission.
Message broadcasting unit, for by radio frequency overseas broadcast identification message, declares its master control AP identity, and described identification message is received by other AP that mutually cover with described master control AP radio frequency, and to make other AP be common AP by the identify label of oneself.
Connect and set up unit, for setting up wireless CAPWAP with common AP, be connected, by its wireless service configuration distributing, give common AP, so that common AP carries out self configuration accordingly.
Information transmitting unit, for the client-side information of reaching the standard grade by it and the client-side information that common AP reaches the standard grade that passes through that receives are sent to described AC, carries out client certificate processing by described AC.
Further, the present invention also comprises:
Information synchronizing unit, for being synchronized to all client-side informations coupled common AP;
Communication control unit, the message forwarding for receiving the first common AP, the destination address of described message is the second client, source address is the first client, wherein said the first client is the client of reaching the standard grade by the first common AP, and the second client is the client of reaching the standard grade by the second common AP; And described message is the first common AP while recording the information of the second client that the destination address of described message is corresponding in judging described all client-side informations, is forwarded to described master control AP's; And, according to the destination address of described message, determine the second common AP corresponding to the second client that described destination address is corresponding, by described message repeating, give the second common AP.
Further, the present invention also comprises for providing the service of wireless service that unit is provided.
Further, message broadcasting of the present invention unit is by carry master control AP identity information TLV in beacon frame definition Beacon message by radio frequency overseas broadcast identification message.
Further, connection of the present invention is set up master control AP in unit and is set up wireless CAPWAP with common AP and be connected, and is that described common AP launches the mutual message of reaching the standard grade of CAPWAP by radio frequency network and carries out.
From above technical scheme, the present invention is virtual by automatic a plurality of AP that radio frequency in same electromagnetic space is covered is mutually an AP, and AC only needs to be connected master control AP and disposed management master control AP by cable network.Thereby realize one of rapid deployment in the situation that not relying on cable network, with the wireless network frequently covering, reduce the dependence to cable network, simplified the deployment of AC end.
Accompanying drawing explanation
Fig. 1 is the Organization Chart that wireless network access controller of the prior art is controlled WAP (wireless access point);
Fig. 2 is the method flow diagram of one embodiment of the invention;
Fig. 3 is the structure chart of the corresponding intrument of method in Fig. 2;
Fig. 4 is the method flow diagram of another embodiment of the present invention;
Fig. 5 is the Beacon message format that master control AP of the present invention sends;
Fig. 6 is the mutual message format of reaching the standard grade of the CAPWAP of the common AP transmission of the present invention;
Fig. 7 is the structure chart of the corresponding intrument of the method in Fig. 4.
Embodiment
The present invention is virtual by automatic a plurality of AP that radio frequency in same electromagnetic space is covered is mutually an AP, and AC only needs to be connected master control AP and disposed management master control AP by cable network.Thereby realize one of rapid deployment in the situation that not relying on cable network, with the wireless network frequently covering, reduce the dependence to cable network, simplified the deployment of AC end.
A kind of method that the embodiment of the present invention provides wireless network access controller to control WAP (wireless access point), is applied to network access controller AC upper, and described AC is for managing the wireless access point AP that at least two radio frequencies cover mutually.
Referring to Fig. 2, described method comprises:
201, described AC is connected by CAPWAP with one of them AP through cable network, and after described AP reaches the standard grade, to notify it be master control AP.
202, described AC issues wireless service configuration to master control AP, by master control AP, is carried out accordingly self configuration and described radio configuration is handed down to the common AP that is connected with this master control AP to be configured.
The wireless service configuration that the wireless service configuration that described AC issues to master control AP and master control AP are handed down to common AP comprises: service set SSID configuration and the pre-AP such as secret key PSK authentication that share provide wireless service required configuration.The present invention to master control AP, is handed down to each common AP by master control AP by the wireless service configuration distributing that is directly handed down to each AP by described AC in prior art, and master control AP and common AP are configured according to above-mentioned wireless service configuration.
203, described AC receives the client-side information of master control AP transmission and carries out client certificate processing, and described client-side information comprises the client-side information of reaching the standard grade from master control AP and the client-side information of reaching the standard grade from common AP.
AC of the present invention only connects master control AP by cable network and receives the client-side information that master control AP sends and dispose management master control AP, and AC no longer needs to connect by cable network the master control AP that all AP in same radio frequency region just can manage by deployment wired connection and disposes all AP that manage in same radio frequency region.
Referring to Fig. 3, the present invention also provides a kind of wireless network access controller of corresponding said method to control the device of WAP (wireless access point), is applied to network access controller AC upper, and described AC is for managing the wireless access point AP that at least two radio frequencies cover mutually.The basic hardware framework of described AC comprises CPU, nonvolatile memory, internal memory and other hardware, and from logic, apparatus of the present invention comprise:
Master control AP setup unit, for when described AC is when cable network is connected by CAPWAP with one of them AP, after described AP reaches the standard grade, notifying it is master control AP.
Service configuration unit, for issue wireless service configuration to master control AP, is carried out accordingly self configuration and described radio configuration is handed down to the common AP that is connected with this master control AP to be configured by master control AP.
Information receiving unit, for receiving the client-side information of master control AP transmission and carrying out client certificate processing, described client-side information comprises the client-side information of reaching the standard grade from master control AP and the client-side information of reaching the standard grade from common AP.
Referring to Fig. 4, a kind of method that the present invention also provides wireless network access controller to control WAP (wireless access point), is applied in the wireless access point AP of network access controller AC management.
Described method comprises step:
401, described AP is connected by CAPWAP with AC through cable network, and receives the notice for master control AP that is set of described AC transmission.
402, described master control AP by radio frequency overseas broadcast identification message, declares its master control AP identity, and described identification message is received by other AP that mutually cover with master control AP radio frequency, and to make other AP be common AP by the identify label of oneself.
403, described master control AP sets up wireless CAPWAP with common AP and is connected, and master control AP gives common AP by its wireless service configuration distributing, so that common AP carries out self configuration accordingly.
404, described master control AP sends to described AC by the client-side information of reaching the standard grade by it and the client-side information that common AP reaches the standard grade that passes through that receives, and by described AC, carries out client certificate processing.Here, master control AP also further records the incidence relation between each client and the AP of this client access.
Master control AP of the present invention is further synchronized to all client-side informations coupled common AP.
The present invention carries out by described master control AP the intercommunication mutually that dispatching message completes the different radio client in master control AP radio frequency region.
Because master control AP of the present invention is synchronized to connected common AP by all client-side informations of its reception, all common AP in master control AP radio frequency region all receives the client-side information of other common AP and master control AP like this.Like this, the client of a common AP association in master control AP radio frequency region needs and another common AP(or master control AP in master control AP radio frequency region) associated client is when communicating, the client that need to send message knows the client that receives message with which AP is associated, and the communication of these two clients can complete by the dispatching message of master control AP.
Concrete, described master control AP is further synchronized to all client-side informations each coupled common AP; Described master control AP receives the message that the first common AP forwards, the destination address of described message is the address of the second client, source address is the address of the first client, wherein said the first client is the client of reaching the standard grade by the first common AP, and the second client is the client of reaching the standard grade by the second common AP; And described message is to be forwarded to described master control AP after the first common AP records the destination address of described message in judging described all client-side informations; Described master control AP is according to the destination address of described message and aforesaid incidence relation, determines the second common AP that the second client that described destination address is corresponding accesses, and then, by described message repeating, gives the second common AP.
For example, AP1 and AP2 are the common AP in master control AP radio frequency region, and the customer end A of described AP1 association sends message to the customer end B of AP2 association.As adopting prior art scheme, AP1 is connected by CAPWAP with AC through cable network with AP2, by AC, disposes management AP1 and AP2.Customer end A sends message to AC by AP1, and AC sends to message the customer end B of AP2 association, and message need to pass through between AP1 and AC and the cable network between AP2 and AC is dispatched.And employing technical solution of the present invention only has master control AP to be connected by CAPWAP with AC through cable network, AC only disposes management master control AP.Master control AP sets up wireless CAPWAP with common AP and is connected, and other common AP receive wireless being configured and the client certificate of AC by master control AP.Master control AP is synchronized to connected common AP by all client-side informations of its reception.Customer end A will send message to customer end B like this, and AP1 knows that customer end B is the client of AP2 association, and customer end A sends message to master control AP by AP1, and master control AP sends to message the customer end B of AP2 association.Due between AP1 and master control AP and between AP2 and master control AP for wireless CAPWAP is connected, so message, without dispatching across cable network, has improved communication efficiency.
A described AC can connect a plurality of master control AP, guarantees that the radio frequency of described master control AP does not cover mutually when user configures as far as possible.The mutual situation about covering of radio frequency if there is described master control AP, because the identity of master control AP is that user is pre-configured, if there is plural master control AP simultaneously, a master control AP will directly abandon this message after the identification message that receives another one master control AP transmission, to avoid master control AP oneself to be set as common AP.
If a common AP is positioned at the radio frequency coverage of two master control AP, described common AP need to select master control AP according to the radio-frequency (RF) signal strength of this two master control AP, selects AP that radiofrequency signal is strong as master control AP.
Master control AP in described step 401 is connected with AC by cable network, and by the notice of AC, determines the identity of the master control AP of oneself.
Master control AP in described step 402 and the radio frequency of common AP cover mutually, so common AP can receive the broadcast identification message that master control AP sends, thereby common AP can determine by described message the common AP identity of oneself.
Master control AP described in described step 402 also will provide wireless service by radio frequency overseas broadcast identification message time.
Master control AP described in described step 402 is by carry master control AP identity information TLV(tag-length-value in beacon frame definition Beacon message by radio frequency overseas broadcast identification message).
Referring to Fig. 5, it is concrete Beacon message format.And the Master AP flag in IE content is 1, represent that AP is master control AP, be 0 to be common AP, Master AP IPv4address is the address of master control AP.
Master control AP described in described step 403 sets up wireless CAPWAP with common AP and is connected, and is that described common AP launches the mutual message of reaching the standard grade of CAPWAP by radio frequency network and carries out.
Referring to Fig. 6, it is the form of the described mutual message of reaching the standard grade.Comprise: 802.11 administrative message heads, IP heading, UDP heading, CAPWAP heading and CAPWAP control message, and described 802.11 administrative message heads are to utilize other headings of 802.11 consultative managements.
Referring to Fig. 7, the present invention's device that also corresponding said method provides a kind of wireless network access controller to control WAP (wireless access point), is applied in the wireless access point AP of network access controller AC management.The basic hardware framework of described AP comprises CPU, nonvolatile memory, internal memory and other hardware, and from logic, apparatus of the present invention comprise:
Notice receiving element, for when described AP is when cable network is connected by CAPWAP with AC, receives the notice for master control AP that is set of described AC transmission.
Message broadcasting unit, for by radio frequency overseas broadcast identification message, declares its master control AP identity, and described identification message can be received by other AP that mutually cover with described master control AP radio frequency, and to make other AP be common AP by the identify label of oneself.
Connect and set up unit, for setting up wireless CAPWAP with common AP, be connected, by its wireless service configuration distributing, give common AP, so that common AP carries out self configuration accordingly.
Information transmitting unit, for the client-side information of reaching the standard grade by it and the client-side information that common AP reaches the standard grade that passes through that receives are sent to described AC, carries out client certificate processing by described AC.
Further, the present invention also comprises:
Information synchronizing unit, for being synchronized to all client-side informations coupled common AP.
Communication control unit, the message forwarding for receiving the first common AP, the destination address of described message is the second client, source address is the first client, wherein said the first client is the client of reaching the standard grade by the first common AP, and the second client is the client of reaching the standard grade by the second common AP; And described message is the first common AP while recording the information of the second client that the destination address of described message is corresponding in judging described all client-side informations, is forwarded to described master control AP's; And, according to the destination address of described message, determine the second common AP corresponding to the second client that described destination address is corresponding, by described message repeating, give the second common AP.
Further, the present invention also comprises for providing the service of wireless service that unit is provided.
Further, described message broadcasting unit is by carry master control AP identity information TLV in Beacon message by radio frequency overseas broadcast identification message.
Further, described connection is set up master control AP in unit and is set up wireless CAPWAP with common AP and be connected, and is that described common AP launches the mutual message of reaching the standard grade of CAPWAP by radio frequency network and carries out.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of making, be equal to replacement, improvement etc., within all should being included in the scope of protection of the invention.
Claims (10)
1. wireless network access controller is controlled a method for WAP (wireless access point), is applied to network access controller AC upper, it is characterized in that, described AC is used for managing the wireless access point AP that at least two radio frequencies cover mutually,
Described method comprises:
Described AC is connected by CAPWAP with one of them AP through cable network, and after described AP reaches the standard grade, to notify it be master control AP;
Described AC issues wireless service configuration to master control AP, by master control AP, carries out accordingly self configuration, and described radio configuration is handed down to the common AP that is connected with this master control AP to be configured;
Described AC receives the client-side information of master control AP transmission and carries out client certificate processing, and described client-side information comprises the client-side information of reaching the standard grade from master control AP and the client-side information of reaching the standard grade from common AP.
2. wireless network access controller is controlled a method for WAP (wireless access point), be applied to, in the wireless access point AP of network access controller AC management, it is characterized in that,
Described AP is connected by CAPWAP with AC through cable network, and receives the notice for master control AP that is set of described AC transmission;
Described master control AP by radio frequency overseas broadcast identification message, declares its master control AP identity, and described identification message is received by other AP that mutually cover with described master control AP radio frequency, and to make other AP be common AP by the identify label of oneself;
Described master control AP sets up wireless CAPWAP with common AP and is connected, and master control AP gives common AP by its wireless service configuration distributing, so that common AP carries out self configuration accordingly;
Described master control AP sends to described AC by the client-side information of reaching the standard grade by it and the client-side information that common AP reaches the standard grade that passes through that receives, and by described AC, carries out client certificate processing.
3. method according to claim 2, is characterized in that,
Described master control AP is further synchronized to all client-side informations each coupled common AP;
Described master control AP receives the message that the first common AP forwards, the destination address of described message is the address of the second client, source address is the address of the first client, wherein said the first client is the client of reaching the standard grade by the first common AP, and the second client is the client of reaching the standard grade by the second common AP; And described message is to be forwarded to described master control AP after the first common AP records the destination address of described message in judging described all client-side informations;
Described master control AP is according to the destination address of described message, determines the second common AP that the second client that described destination address is corresponding accesses, and by described message repeating, gives the second common AP.
4. method according to claim 2, is characterized in that, described master control AP is by carry master control AP identity information TLV in beacon frame definition Beacon message by radio frequency overseas broadcast identification message.
5. method according to claim 2, is characterized in that, described master control AP sets up wireless CAPWAP with common AP and is connected, and is that described common AP launches the mutual message of reaching the standard grade of CAPWAP by radio frequency network and carries out.
6. wireless network access controller is controlled a device for WAP (wireless access point), is applied to network access controller AC upper, it is characterized in that, described AC is used for managing the wireless access point AP that at least two radio frequencies cover mutually,
Described device comprises:
Master control AP setup unit, for when described AC is when cable network is connected by CAPWAP with one of them AP, after described AP reaches the standard grade, notifying it is master control AP;
Service configuration unit, for issue wireless service configuration to master control AP, is carried out accordingly self configuration and described radio configuration is handed down to the common AP that is connected with this master control AP to be configured by master control AP;
Information receiving unit, for receiving the client-side information of master control AP transmission and carrying out client certificate processing, described client-side information comprises the client-side information of reaching the standard grade from master control AP and the client-side information of reaching the standard grade from common AP.
7. wireless network access controller is controlled a device for WAP (wireless access point), be applied to, in the wireless access point AP of network access controller AC management, it is characterized in that,
Notice receiving element, for when described AP is when cable network is connected by CAPWAP with AC, receives the notice for master control AP that is set of described AC transmission;
Message broadcasting unit, for by radio frequency overseas broadcast identification message, declares its master control AP identity, and described identification message is received by other AP that mutually cover with described master control AP radio frequency, and to make other AP be common AP by the identify label of oneself;
Connect and set up unit, for setting up wireless CAPWAP with common AP, be connected, by its wireless service configuration distributing, give common AP, so that common AP carries out self configuration accordingly;
Information transmitting unit, for the client-side information of reaching the standard grade by it and the client-side information that common AP reaches the standard grade that passes through that receives are sent to described AC, carries out client certificate processing by described AC.
8. device according to claim 7, is characterized in that, also comprises:
Information synchronizing unit, for being synchronized to all client-side informations coupled common AP;
Communication control unit, the message forwarding for receiving the first common AP, the destination address of described message is the address of the second client, source address is the address of the first client, wherein said the first client is the client of reaching the standard grade by the first common AP, and the second client is the client of reaching the standard grade by the second common AP; And described message is to be forwarded to described master control AP after the first common AP records the destination address of described message in judging described all client-side informations; And, according to the destination address of described message, determine the second common AP that the second client that described destination address is corresponding accesses, by described message repeating, give the second common AP.
9. device according to claim 7, is characterized in that, described message broadcasting unit is by carry master control AP identity information TLV in beacon frame definition Beacon message by radio frequency overseas broadcast identification message.
10. device according to claim 7, is characterized in that, described connection is set up master control AP in unit and set up wireless CAPWAP with common AP and be connected, and is that described common AP launches the mutual message of reaching the standard grade of CAPWAP by radio frequency network and carries out.
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