CN102104893B - Method, device and wireless access point equipment for realizing hot backup of wireless controller - Google Patents
Method, device and wireless access point equipment for realizing hot backup of wireless controller Download PDFInfo
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- CN102104893B CN102104893B CN 201010602013 CN201010602013A CN102104893B CN 102104893 B CN102104893 B CN 102104893B CN 201010602013 CN201010602013 CN 201010602013 CN 201010602013 A CN201010602013 A CN 201010602013A CN 102104893 B CN102104893 B CN 102104893B
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Abstract
The invention discloses a method, a device and wireless access point equipment for realizing the hot backup of a wireless controller. The method comprises that: an access point (AP) performs the hot backup with the access controller (AC) connected with the AP; when detecting the AC fails, the AP informs the other APs connected with the AC of switching to MESH network connection, provides a service for a wireless client by a MESH network with the other APs and backs-up the access information of the client during the failure of the AC; and when detecting the AC is recovered from the failure, the AP synchronizes the access information, backed-up during the failure of the AC, of the client to the AC, and recovers communication with the AC together with the other APs. By the method, the device and the wireless access point equipment, the hot backup of the AC is realized by utilizing the APs connected with the AC under the condition of not increasing the number of the AC so as to solve the problem of relatively higher networking cost caused by the needs of the hot backup in a plurality of ACs in the prior art.
Description
Technical field
The present invention relates to the computer network communication technology field, relate in particular to a kind of method, device and wireless access point device of realizing the wireless controller Hot Spare.
Background technology
WLAN (wireless local area network) (Wireless Local Area Networks, WLAN) refer to that the employing wireless communication technology is interconnected with computer equipment, the client can insert the Internet and enterprise network whenever and wherever possible with WLAN by terminals such as notebook computer, PDA, obtains information, amusement or handles official business.
In the WLAN (wireless local area network), comprise WAP (wireless access point) (Access Controller, AP), wireless controller (Access Controller, AC) and wireless client (Station, STA), AP is equivalent to a bridge that is connected with gauze and wireless network, and it mainly acts on is that each wireless network clients is connected together, then with the wireless network access network based on ethernet.AC be wireless in the distinctive network equipment, it has access to spider lines to AP by wired connection, manages the AP that control connects by AC, and AP is gone up functions such as safety, control and management all concentrates in together processing.(Controlling and Provisioning of Wireless Access Point, CAPWAP) agreement communicates to pass through wireless access point control and deployment between AP and the AC.
Fig. 1 is the schematic diagram of the WLAN (wireless local area network) of thin AP architecture in the prior art, in Fig. 1, be connected by gigabit or ten thousand mbit ethernet mouths between two AC (AC1 and AC2), control the transmission of message by the tunnel, one of them AC is main AC, other one is standby AC, each AP needs to set up CAPWAP tunnel with two AC simultaneously and is connected, after CAPWAP tunnel between main AC and each AP disconnects, backup AC can take over main AC and work on, the heat backup method of this AC in the prior art needs two even more AC to participate in Hot Spare, and this method required cost of arranging net is higher.
Summary of the invention
The embodiment of the invention provides a kind of method, device and wireless access point device of realizing the wireless controller Hot Spare, the Hot Spare that be used for solving existing WLAN (wireless local area network) needs many AC the to participate in AC cost problem of higher that causes arranging net.
The embodiment of the invention provides the method that realizes the wireless controller Hot Spare, comprising:
Carry out Hot Spare between the connected wireless controller AC of wireless access point AP;
When described AP detects described AC and breaks down, other AP of being connected with described AC of announcement convert netted MESH network connection to, and and described other AP between provide the access information of serving and backing up client during AC breaks down for wireless client by the MESH network;
When AP detects described AC by fault recovery just often, the client access information of the backup during described AC is broken down is given described AC synchronously, and with other AP recover with described AC between communicate by letter.
A kind of device of realizing the wireless controller Hot Spare that the embodiment of the invention provides comprises:
The Hot Spare unit, be used for wireless controller AC that affiliated wireless access point AP is connected between carry out Hot Spare;
Detecting unit is used for the operating state of described AC is detected;
Netted MESH network schemer converting unit, be used for when described detecting unit detects described AC and breaks down, other AP of being connected with described AC of announcement convert the MESH network connection to, and and described other AP between provide the access information of serving and backing up client during AC breaks down for wireless client by the MESH network;
Recovery unit is used for detecting described AC by fault recovery just often at described detecting unit, and the client access information of the backup during described AC is broken down is given described AC synchronously, and with other AP recover with described AC between communicate by letter.
The wireless access point device that the embodiment of the invention provides comprises the device of the above-mentioned realization wireless controller Hot Spare that the embodiment of the invention provides.
The beneficial effect of the embodiment of the invention comprises:
The method of the realization wireless controller Hot Spare that the embodiment of the invention provides, device and wireless access point device, under the situation of the quantity that does not increase AC, the AP that connects by AC realizes the Hot Spare to this AC, when AC breaks down, AP can take over the work of AC, and provide service by the MESH network for wireless client between other AP, and when AC recovers operate as normal, backup information during AC broken down is given this AC synchronously, finish by the MESH network communication mode and switch back the WLAN (wireless local area network) connection mode of being managed AP by AC, realize not interruptedly for wireless client provides the WLAN (wireless local area network) access service, avoided needing in the prior art to use many AC to carry out the Hot Spare cost problem of higher that causes arranging net.
Description of drawings
Fig. 1 is the structural representation of the WLAN (wireless local area network) of existing thin AP architecture;
The network structure of the method for the realization wireless controller Hot Spare that Fig. 2 provides for the embodiment of the invention;
The flow chart of the method for the realization wireless controller Hot Spare that Fig. 3 provides for the embodiment of the invention;
The structural representation of the device of the realization wireless controller Hot Spare that Fig. 4 provides for the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing, a kind of embodiment of method, device and the wireless access point device of wireless controller Hot Spare that realizes that the embodiment of the invention is provided is described in detail.
The network architecture diagram of the method for the Hot Spare of the wireless controller that the embodiment of the invention provides as shown in Figure 2, connected each AP of AC in the wireless network (connects as setting up CAPWAP between the AP1 among Fig. 2～AP3), and set up netted (MESH) network connection between each AP in advance, but each AP is the data by this MESH network transmission wireless client, but by and AC between the data of CAPWAP tunnel transmission wireless client.Certain AP (for example being the AP1 among Fig. 2) in each AP that AC connects is configured to the MPP in the MESH network in advance, and this AP1 as shown in Figure 3, needs to carry out following step as the equipment of the Hot Spare of AC:
Carry out Hot Spare between the connected AC of S301, AP1;
The operating state of S302, the AC of AP1 detects; When AP1 detects AC and breaks down, carry out following step S303; Otherwise execution in step S302 again;
Other AP (as the AP2 among Fig. 2 and AP3) of being connected with AC of S303, AP1 announcement convert the MESH network connection to, and and other AP between provide the access information of serving and backing up client during AC breaks down for wireless client by the MESH network;
S304, AP1 continue the operating state of AC is detected, and are detecting AC by fault recovery just often detecting after AC breaks down, and carry out following step S304; Otherwise, execution in step S304 again;
The client access information of the backup during S305, AP1 break down described AC is given synchronously described AC, and with other AP recover with described AC between communicate by letter.
Among the above-mentioned steps S301, AP1 receives the configuration information of the WLAN (wireless local area network) that AC comes synchronously and the access authentication information of each wireless client in real time, the configure packet purse rope of WLAN (wireless local area network) closes configuration information, wireless LAN safety configuration information etc., and the access authentication information of wireless client comprises information such as client identification that client certificate is relevant and password.
In above-mentioned steps S302, whether AP1 detects AC by following manner and breaks down:
AP1 regularly sends the keep-alive message to AC, if do not receive the response message that AC returns in the time of setting, determines that then AC breaks down; Otherwise, determine that AC is working properly.
The keep-alive message does not need to send by the encapsulation of the CAPWAP tunnel between AC and the AP1, generates and sends the keep-alive method of message and belong to the state of the art, does not repeat them here.
In above-mentioned steps S304, after AP1 detected AC and breaks down, AP1 detected AC by following manner and whether recovers normal:
AP1 regularly sends the keep-alive message to AC after definite AC breaks down, if receive the response message that AC returns in the time of setting, determine that then AC is normal by fault recovery, otherwise, determine that AC does not recover normal.
Among the above-mentioned steps S303, this AP1 is owing to the MPP that is configured in advance in the MESH network, namely this AP1 holds a concurrent post the role of MP among the MESH (the MESH access point of service is provided) and Portal (access point of MESH network and other non-MESH networks is provided) in the MESH network, in existing MESH network, MPP role's AP1 provides the access point of MESH wireless service simultaneously and provides MESH and the access point of other non-MESH networks, when AC breaks down, this AP1 takes over the work of AC, the communication mode of each AP that will be connected with AC is changed into the communication mode of MESH network, particularly, at first, the configuration information of the WLAN (wireless local area network) that gets access in the Hot Spare process with AC before this AP1 incites somebody to action, convert the configuration information of corresponding MESH network to, then by with other AP between the MESH that sets up in advance be connected, the configuration information of the MESH network after the conversion is issued to other AP, like this, AP1 as MPP, take over AC relevant AP management and user access control work, simultaneously also with other each AP as MP role, form a MESH network, when AC breaks down, continue as wireless client service is provided.
In above-mentioned steps S305, the client access information of the backup during AP breaks down AC is given AC synchronously, and with other AP recover with this AC between communicate by letter, specifically comprise the steps:
The authentication information of the wireless client that inserts during AP1 breaks down AC is synchronously to this AC;
The wireless client that inserts between age at failure comprises the wireless client that inserts again then and the wireless client that inserts this WLAN (wireless local area network) for the first time because the AC fault goes offline.
AP1 recover with AC between communicate by letter, and by the MESH network connection of setting up in advance announce other AP recover with AC between communicate by letter.Like this, network returns to the state of AC before breaking down again.Be responsible for the management of each AP and the cut-in operation of wireless client by AC, though the MESH network connection is arranged between each AP, do not carry out the transmission of the data of wireless client by this MESH network.
Based on same inventive concept, the embodiment of the invention also provides a kind of device and wireless access point device of realizing the wireless controller Hot Spare, because these devices and the equipment principle of dealing with problems a kind ofly realize that the method for wireless controller Hot Spare is similar to aforementioned, therefore the enforcement of these devices and equipment can repeat part and repeat no more referring to the enforcement of method.
The device of the realization wireless controller Hot Spare that the embodiment of the invention provides as shown in Figure 4, comprising: Hot Spare unit 401, detecting unit 402, MESH network schemer converting unit 403 and recovery unit 404; Wherein:
Hot Spare unit 401, be used for wireless controller AC that affiliated wireless access point AP is connected between carry out Hot Spare;
Detecting unit 402 is used for the operating state of described AC is detected;
MESH network schemer converting unit 403, be used for when detecting unit 402 detects AC and breaks down, other AP of being connected with AC of announcement convert the MESH network connection to, and and other AP between provide the access information of serving and backing up client during AC breaks down for wireless client by the MESH network;
Further, above-mentioned Hot Spare unit 401 concrete is used for receiving in real time the configuration information of the WLAN (wireless local area network) that connected AC comes synchronously and the authentication information that respectively inserts wireless client.
Further, above-mentioned detecting unit 402, concrete being used for regularly sends the keep-alive message to AC, if do not receive the response message that AC returns in the time of setting, determines that then AC breaks down; Otherwise, determine that AC is working properly; And after definite AC breaks down, regularly send the keep-alive message to AC, if receive the response message that AC returns in the time of setting, determine that then described AC is normal by fault recovery, otherwise, determine that described AC does not recover normal.
Further, above-mentioned MESH network schemer converting unit 403, concrete be used for will with the described configuration information of AC Hot Spare, convert the configuration information of MESH network to, and by with other AP that described AC is connected between the MESH that sets up in advance connect, the configuration information of the MESH network after the conversion is issued to described other AP; Take over AP management and the user access control work of described AC, and provide service by the MESH network for wireless client between other AP.
Further, above-mentioned recovery unit 404, concrete authentication information for the wireless client that inserts during described AC is broken down is synchronous to described AC; Recover with described AC between communicate by letter, and by communicating by letter between described other AP recoveries of the MESH network connection announcement of setting up in advance and the described AC.
The embodiment of the invention also provides a kind of wireless access point device, and this wireless access point device comprises the device of the realization wireless controller Hot Spare that the embodiment of the invention provides.
The method of the realization wireless controller Hot Spare that the embodiment of the invention provides, device and wireless access point device, the AP that connects by AC realizes the Hot Spare to this AC, when AC breaks down, AP can take over the work of AC, and provide service by the MESH network for wireless client between other AP, and when AC recovers operate as normal, backup information during AC broken down is given this AC synchronously, finish by the MESH network communication mode and switch back the WLAN (wireless local area network) connection mode of being managed AP by AC, realize interruptedly not providing the WLAN (wireless local area network) access service for wireless client, the process of whole Hot Spare is fully based on the network architecture that has WLAN (wireless local area network) now, need not additionally to increase any network equipment can realize, implements simple and can avoid needing in the prior art to use many AC to carry out the Hot Spare cost problem of higher that causes arranging net.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (11)
1. a method that realizes the wireless controller Hot Spare is characterized in that, comprising:
Carry out Hot Spare between the connected wireless controller AC of wireless access point AP;
When described AP detects described AC and breaks down, other AP of being connected with described AC of announcement convert netted MESH network connection to, and and described other AP between provide the access information of serving and backing up client during AC breaks down for wireless client by the MESH network;
When AP detects described AC by fault recovery just often, the client access information of the backup during described AC is broken down is given described AC synchronously, and with other AP recover with described AC between communicate by letter.
2. the method for claim 1 is characterized in that, carries out Hot Spare between the connected AC of described AP, specifically comprises:
Described AP receives the configuration information of the WLAN (wireless local area network) that connected AC comes synchronously and the authentication information that respectively inserts wireless client in real time.
3. the method for claim 1 is characterized in that, whether AP detects AC and break down, and realizes by following manner:
AP regularly sends the keep-alive message to AC, if do not receive the response message that AC returns in the time of setting, determines that then AC breaks down; Otherwise, determine that AC is working properly;
Whether by fault recovery normal, realize by following manner if detecting AC:
AP regularly sends the keep-alive message to AC after definite AC breaks down, if receive the response message that AC returns in the time of setting, determine that then described AC is normal by fault recovery, otherwise, determine that described AC does not recover normal.
4. method as claimed in claim 2 is characterized in that, other AP that described AP announcement is connected with described AC convert the MESH network connection to, and and described other AP between provide service by the MESH network for wireless client, comprising:
Described AP will with the described configuration information of AC Hot Spare, convert the configuration information of MESH network to;
Described AP by with other AP that described AC is connected between the MESH that sets up in advance connect, the configuration information of the MESH network after the conversion is issued to described other AP;
Described AP takes over AP management and the user access control work of described AC, and provides service by the MESH network for wireless client between described other AP.
5. as each described method of claim 1-4, it is characterized in that the client access information of the backup during AP breaks down described AC is given synchronously described AC, and with other AP recover with described AC between communicate by letter, comprising:
The authentication information of the wireless client that inserts during described AP breaks down described AC is synchronously to described AC;
Described AP recover with described AC between communicate by letter, and by communicating by letter between described other AP recoveries of the MESH network connection announcement of setting up in advance and the described AC.
6. a device of realizing the wireless controller Hot Spare is characterized in that, comprising:
The Hot Spare unit, be used for described device under carry out Hot Spare between the wireless controller AC that is connected of wireless access point AP;
Detecting unit is used for the operating state of described AC is detected;
Netted MESH network schemer converting unit, be used for when described detecting unit detects described AC and breaks down, other AP of being connected with described AC of announcement convert the MESH network connection to, and and described other AP between provide the access information of serving and backing up client during AC breaks down for wireless client by the MESH network;
Recovery unit is used for detecting described AC by fault recovery just often at described detecting unit, and the client access information of the backup during described AC is broken down is given described AC synchronously, and with other AP recover with described AC between communicate by letter.
7. device as claimed in claim 6 is characterized in that, described Hot Spare unit is further used for receiving in real time the configuration information of the WLAN (wireless local area network) that connected AC comes synchronously and the authentication information that respectively inserts wireless client.
8. device as claimed in claim 6 is characterized in that, described detecting unit is further used for regularly sending the keep-alive message to AC, if do not receive the response message that AC returns in the time of setting, determines that then AC breaks down; Otherwise, determine that AC is working properly; And after definite AC breaks down, regularly send the keep-alive message to AC, if receive the response message that AC returns in the time of setting, determine that then described AC is normal by fault recovery, otherwise, determine that described AC does not recover normal.
9. device as claimed in claim 7, it is characterized in that, MESH network schemer converting unit, be further used for will with the described configuration information of AC Hot Spare, convert the configuration information of MESH network to, and by with other AP that described AC is connected between the MESH that sets up in advance connect, the configuration information of the MESH network after the conversion is issued to described other AP; Take over AP management and the user access control work of described AC, and provide service by the MESH network for wireless client between described other AP.
10. as each described device of claim 6-9, it is characterized in that, recovery unit, the authentication information of the wireless client that inserts during being further used for described AC broken down is synchronously to described AC; Recover with described AC between communicate by letter, and by communicating by letter between described other AP recoveries of the MESH network connection announcement of setting up in advance and the described AC.
11. a wireless access point device is characterized in that, this wireless access point device comprises the device as each described realization wireless controller Hot Spare of claim 6-10.
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| CN 201010602013 CN102104893B (en) | 2010-12-22 | 2010-12-22 | Method, device and wireless access point equipment for realizing hot backup of wireless controller |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102256250A (en) * | 2011-07-08 | 2011-11-23 | 杭州华三通信技术有限公司 | Wireless terminal information synchronization method in wireless local area network and equipment thereof |
| CN102752172B (en) * | 2012-07-13 | 2014-12-31 | 杭州华三通信技术有限公司 | Control method and control device for switching AP (Access Point) between hot standby ACs (Access Controllers) |
| CN103369529B (en) * | 2013-07-09 | 2016-03-30 | 福建星网锐捷网络有限公司 | Identity identifying method, accessing points and access controller |
| CN104768234B (en) * | 2014-01-06 | 2018-04-10 | 华为技术有限公司 | The transmission method and wireless terminal point of grid network |
| CN105050127B (en) * | 2015-06-30 | 2019-04-26 | 深圳市信锐网科技术有限公司 | The standby starting control method of calamity and system |
| CN106817717A (en) * | 2015-12-02 | 2017-06-09 | 大唐移动通信设备有限公司 | A kind of base station and the data transmission method and device of radio network controller equipment room |
| CN105898786A (en) * | 2016-04-12 | 2016-08-24 | 上海斐讯数据通信技术有限公司 | Access point escape method and access point escape system |
| CN109039840A (en) * | 2018-08-06 | 2018-12-18 | 上海顺舟智能科技股份有限公司 | Zigbee network-building method and access point gateway |
| CN108966363B (en) * | 2018-08-17 | 2021-03-12 | 新华三技术有限公司 | Connection establishing method and device |
| CN109831832B (en) * | 2019-02-01 | 2020-11-06 | 新华三技术有限公司 | Method and device for preventing service interruption |
| CN116996924B (en) * | 2023-09-22 | 2023-12-05 | 新华三技术有限公司 | Fault processing method and device |
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| CN101557616A (en) * | 2009-05-19 | 2009-10-14 | 杭州华三通信技术有限公司 | Method for accessing AP (access point) to controller by switching backup and AP (access point) and AC (access controller) |
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| US20060114871A1 (en) * | 2004-11-29 | 2006-06-01 | Research In Motion Limited | Network selection involving GANC redirection |
| CN101557616A (en) * | 2009-05-19 | 2009-10-14 | 杭州华三通信技术有限公司 | Method for accessing AP (access point) to controller by switching backup and AP (access point) and AC (access controller) |
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