CN101583144B - Wireless controller service information backup method and equipment - Google Patents
Wireless controller service information backup method and equipment Download PDFInfo
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- CN101583144B CN101583144B CN200910157276XA CN200910157276A CN101583144B CN 101583144 B CN101583144 B CN 101583144B CN 200910157276X A CN200910157276X A CN 200910157276XA CN 200910157276 A CN200910157276 A CN 200910157276A CN 101583144 B CN101583144 B CN 101583144B
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Abstract
The invention discloses a wireless controller configuration information backup method and equipment, which are applied to a system comprising an active wireless controller, at least one standby wireless controller and at least one wireless access point, wherein the active wireless controller is configured with the address information of the at least one standby wireless controller, and active communication linkage is established between the at least one wireless access point and the active wireless controller. By the method, the wireless access point in the system maintains communication linkage with the active-standby wireless controllers simultaneously and realizes switch when failure occurs so as to guarantee the continuous implementation of services. With the invention, the backup of the configuration resources of the wireless controller can be realized under the condition that the wireless controller does not need to independently establish backup channels among the wireless controllers.
Description
Technical field
The present invention relates to communication technical field, particularly a kind of backup method of wireless controller service information and equipment.
Background technology
(Access Point AP) is equipment commonly used when setting up the micro radio local area network (LAN) at present to WAP (wireless access point).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.According to AP itself integrated function difference, prior art is divided into FAT AP networking structure and AC+FIT AP networking structure.
Wherein, FAT AP networking structure is existing common networking structure, and its schematic diagram as shown in Figure 1.
In this FAT AP networking model, AP is connected to cable network by switch, and all correlation functions are all finished on AP self, and therefore, this AP is called as FAT AP, comprises that dynamic key generates, termination etc. is switched, authenticated in the L2 roaming.Disposal ability for AP self requires just than higher like this, need to bear complicated business, and function upgrading is to realize by the software version of upgrading AP itself.
Based on above-mentioned example as can be seen, the network construction characteristic of FAT AP is as follows:
AP self function is more powerful, and functions such as dynamic key generates, the L2 roaming is switched, authentication termination can be at AP from finishing on one's body;
By webmastering software the whole network AP is unified centralized management;
802.1x authentication termination can be finished by AP self, also can be finished by switch, the WEB authentication also can be finished by AP self or by switch, cooperate the authentication and accounting system on backstage to carry out monthly payment and charge, or based on the charging of duration or flow;
Because the principle features of FAT AP self, it is applicable to that usually scale is less, only is WLAN (wireless local area network) (the Wireless Local Area Network of data access service demand, WLAN) network construction, or some topical application wlan networks carry out the project that focus covers.
Along with AP quantity in the prior wireless network increases gradually, also brought a series of problem for wireless network, deployment issue such as wireless network, how numerous AP carries out channel adjustment and power adjustments, how flow on the AP carries out load balancing, how to survey the access of rogue AP etc., these problems have brought new challenge all for the deployment of wireless network.
In order to tackle above-mentioned challenge, solve the corresponding techniques problem, the deployment form of wireless controller is also carried out transition from FAT AP networking structure to AC (Access Controller, wireless controller)+FIT AP networking structure.
AC is a kind of network equipment, can the basic wireless network of Automatic Optimal, and support senior mobile service on this network.
The networking model of AC+FIT AP is to realize networking by FIT AP and AC, and its structural representation as shown in Figure 2.
The networking model of FIT AP is handled by the function on the AP " is peeled off " to come out to focus on the AC, comprises the termination of dynamic key generation, authentication etc., has alleviated burden and the cost of single AP; AC simultaneously, AP managed, so can cooperate FIT AP to realize more value-added service function because increased AC.
In this networking structure, realize on the FIT AP " zero configuration " that all configurations all focus on the AC.This has also facilitated FIT AP solution to be convenient to centralized management more.
In carrier network, in order better to realize the networking structure of AC+FIT AP, the quantity of AC also increases along with more and more AP, and is strong day by day to the demand of service backup, so the Hot Spare technology of AC has been arranged.
AP by Lightweight Access Point Protocol (Light Access Point Protocol understanding, LWAPP) tunnel and AC set up and link, wherein, the schematic diagram of LWAPP agreement and networking structure is distinguished as shown in Figure 3 and Figure 4.
In networking structure as shown in Figure 4, on AC and AP, independent maintenance one is overlapped state machine separately, it is business information, by the interacting message synchronous regime, as seen from Figure 4, the foundation of LWAPP passage AP needn't be considered when data forwarding and AC between complicated routing relation, make getting in touch between AC and the AP become simple.
The key that the LWAPP passage is set up is the LWAPP state machine that AC and AP safeguard synchronously separately, i.e. business information.AP determines whether to be in normal connection status with AC by the keep-alive message, if determine can not be again with the AC proper communication of registration the time for AP, the link between AC and the AP will enter interruption (down) state.
Two-node cluster hot backup is a kind of common technology, has a look the networking situation of AC dual-host backup earlier, is illustrated in fig. 5 shown below.
For avoiding the Single Point of Faliure in the network uplink passage, the related service apparatus unit of network system generally needs to support two-node cluster hot backup or N+1 Hot Spare, for example Portal, dynamic host allocation protocol server (Dynamic Host Configuration Protocol Server, DHCP server), (Network Address Translation NAT) waits business function to network address translation.AC faces same demand as the Centralized Controller of wireless network.
Two-shipper or N+1 backup, adopt following two kinds of schemes usually:
Scheme one, general two-node cluster hot backup: between mutually redundant two equipment (abbreviating device A and equipment B as), set up backup path.The business module of device A according to certain opportunity, sends to equipment B to business datum in real time and backs up.It is consistent with device A that the service condition of equipment B keeps.
In case device A breaks down or link failure, business can automatically switch to equipment B, and the maintenance business is not interrupted.
Device A can be simultaneously as the backup of equipment B, and two equipment backup each other.
Scheme two, realize the N+1 backup by piling up: pile up as a kind of distributed system technology, many platform independent equipment as same virtual device management, be that is to say, concerning external equipment, pile system is an equipment.Like this, pile up inner single device fault, external equipment can perception, and the maintenance business is not interrupted.
In realizing process of the present invention, the inventor finds that there is following problem at least in prior art:
The current techique that above technology is backed up in realtime as equipment, effect are beyond any doubt.But, for an one-of-a-kind system, transform the support two-node cluster hot backup as, need exploitation " equipment room backup path " function separately, introduced additional workload; Transform a plurality of network equipments as pile system, a great system engineering realizes that difficulty is very big especially.
Summary of the invention
The invention provides a kind of backup method and equipment of wireless controller service information, can need not to set up separately under the situation of the backup path between wireless controller, realize the backup of wireless controller resource allocation with the wireless controller in the realization system.
For achieving the above object, one aspect of the present invention provides a kind of backup method of wireless controller service information, be applied to comprise main using in the system of wireless controller, at least one standby wireless controller and at least one WAP (wireless access point), wherein, described main with disposing all address informations of described standby wireless controller in the wireless controller, described at least one WAP (wireless access point) and described master use communication port with setting up the master between the wireless controller, and described method comprises:
Described WAP (wireless access point) receives the described main address information with wireless controller pairing whole standby wireless controllers in current system that described master sends with wireless controller by described master with communication port, and sets up the spare communication passage according to described address information and described at least one standby wireless controller;
Described WAP (wireless access point) receives the business information that described master sends with wireless controller by described master with communication port, and described business information is sent to described at least one standby wireless controller by described spare communication passage backs up.
Preferably, described method also comprises:
When described master is broken down with communication port with wireless controller or described master, standby wireless controller of described wireless access point selection becomes the main wireless controller of using, and the spare communication passage of described standby wireless controller switched to the main communication port of use, continue the maintenance wireless traffic.
Preferably, when comprising in the described system that a master uses the system of wireless controller, a plurality of standby wireless controllers and a plurality of WAP (wireless access point), described a plurality of WAP (wireless access point) respectively and describedly main mainly use communication port with setting up between the wireless controller, described a plurality of WAP (wireless access point) are set up the spare communication passage respectively and between described a plurality of standby wireless controller;
If described master is broken down with communication port with wireless controller or described master, described a plurality of WAP (wireless access point) selects a standby wireless controller of having set up the spare communication channel to become the main wireless controller of using respectively according to default selective rule, and the described spare communication passage that becomes main standby wireless controller with wireless controller switched to the main communication port of use, continue the maintenance wireless traffic.
Preferably, described default selective rule specifically comprises:
The surplus resources quantity of described standby wireless controller; Or,
The priority facility of described standby wireless controller; Or,
The MAC Address order of described standby wireless controller.
Preferably, described WAP (wireless access point) receives the described main address information with wireless controller pairing whole standby wireless controllers in current system that described master sends with wireless controller by described master with communication port, and set up in the process of spare communication passage according to described address information and described at least one standby wireless controller, specifically also comprise:
If described standby wireless controller is in not starting state, described WAP (wireless access point) is carried out state-detection to described standby wireless controller according to the preset detection cycle according to the address information of described master with the standby wireless controller of wireless controller transmission;
When described standby wireless controller was in starting state, described WAP (wireless access point) and described standby wireless controller were set up the spare communication passage.
Preferably, described WAP (wireless access point) receives the business information that described master sends with wireless controller by described master with communication port, and described business information is sent to described at least one standby wireless controller by described spare communication passage, specifically also comprises:
If described standby wireless controller is in not starting state, the business information that the described master of described wireless access point cache sends with wireless controller;
When described standby wireless controller is in starting state, when described WAP (wireless access point) and described standby wireless controller were set up the spare communication passage, the described wireless access described master that names a person for a particular job sent to described standby wireless controller with the business information that wireless controller sends by described spare communication passage.
Preferably, described master is specially with communication port and described spare communication passage:
LWAPP passage or CAPWAP passage.
On the other hand, the present invention also provides a kind of WAP (wireless access point), be applied to comprise main using in the system of wireless controller, at least one standby wireless controller and at least one WAP (wireless access point), wherein, described main with disposing all address informations of described standby wireless controller in the wireless controller, described WAP (wireless access point) and described master use communication port with setting up the master between the wireless controller, comprising:
Receiver module is used for receiving described main address information and the described main business information with wireless controller of using wireless controller at the pairing whole standby wireless controllers of current system that described master sends with wireless controller by described master with communication port;
Processing module electrically connects with described receiver module, is used for the address information of the described standby wireless controller that receives according to described receiver module, sets up the spare communication passage with described at least one standby wireless controller;
Sending module, electrically connect with described receiver module and described processing module, the spare communication passage that is used for setting up by described processing module sends the described main business information with wireless controller that described receiver module receives to described standby wireless controller.
Preferably, described WAP (wireless access point) also comprises detection module:
Described detection module, electrically connect with described processing module, be used to detect described master and whether break down with communication port, when described master is broken down with communication port with wireless controller or described master, notify described processing module to handle with wireless controller or described master;
Described processing module, also be used for when described detection module detects described master and breaks down with communication port with wireless controller or described master, in the standby wireless controller of having set up the spare communication passage, select a standby wireless controller to become the main wireless controller of using, and the spare communication passage of described standby wireless controller switched to the main communication port of use, continue the maintenance wireless traffic.
Preferably, whether described detection module when also being used for having at least one standby wireless controller to be in not starting state in described system, starting described standby wireless controller according to the preset detection cycle and to detect.
Preferably, described WAP (wireless access point) also comprises:
Cache module, electrically connect with described detection module, described receiver module and described sending module, when being used for having at least one standby wireless controller to be in not starting state in described system, the described master that described receiver module received is carried out buffer memory with the business information of wireless controller, and when described detection module detects described standby wireless controller and is in starting state, notify described sending module, the described main business information with wireless controller of buffer memory is sent to described standby wireless controller.
Preferably, described master is specially with communication port and described spare communication passage:
LWAPP passage or CAPWAP passage.
Compared with prior art, the present invention has the following advantages:
By the present invention, the active and standby wireless controller in the system can need not to set up separately under the situation of the backup path between wireless controller, realizes the backup of wireless controller service information, has improved the stability and the fail safe of service operation in the system.
Description of drawings
Fig. 1 is a FAT AP networking structure schematic diagram of the prior art;
Fig. 2 is an AC+FIT AP networking model schematic diagram of the prior art;
Fig. 3 is a LWAPP agreement schematic diagram of the prior art;
Fig. 4 is the networking structure schematic diagram of LWAPP agreement of the prior art;
Fig. 5 is the structural representation of AC dual-host backup of the prior art;
Fig. 6 is the schematic flow sheet of the backup method of a kind of wireless controller service information provided by the invention;
Fig. 7 is the structural representation of enforcement scene of the backup method of a kind of wireless controller service information provided by the invention;
Fig. 8 is the schematic flow sheet of the backup method of wireless controller service information under a kind of concrete enforcement scene provided by the invention;
Fig. 9 is the structural representation of a kind of wireless controller networking provided by the invention;
Figure 10 is the structural representation of a kind of WAP (wireless access point) provided by the invention.
Embodiment
As stated in the Background Art, it is by set up backup path between active and standby wireless controller that existing wireless controller heat is equipped with technology, business information is sent to standby wireless controller by main with wireless controller, thereby realize the backup of the business information in the wireless controller.But such Technology Need is set up independent backup path, has increased the consumption of system resource.
So the present invention wishes by communication mechanism between existing AC and AP, not developing on the special-purpose AC communication between devices channel base, realizes the hot-backup function of AC.
For achieving the above object, the invention provides a kind of backup method of wireless controller service information, be applied to comprise main using in the system of wireless controller, at least one standby wireless controller and at least one WAP (wireless access point), wherein, main with the address information that disposes whole standby wireless controllers in the wireless controller, each WAP (wireless access point) and main with setting up the main communication port of using between the wireless controller.
As shown in Figure 6, this method specifically may further comprise the steps:
Step S601, WAP (wireless access point) receive the address information of master with the standby wireless controller of wireless controller transmission by main with communication port, and set up the spare communication passage according to address information and each standby wireless controller.
In main address information with the whole standby wireless controllers of configuration in the wireless controller, and address information is sent to each WAP (wireless access point) is the prerequisite that technical scheme of the present invention realizes.
By such setting, the master can be known the specific address information of this master with wireless controller pairing whole standby wireless controllers in current system with each WAP (wireless access point) under the wireless controller, and according to the corresponding spare communication passage of the standby wireless controller foundation of this address information and each, if there are a plurality of standby wireless controllers in the current system, then WAP (wireless access point) need be set up a plurality of spare communication passages simultaneously, wherein, main is parallel simultaneously the existence with communication port and spare communication passage.
And, need be pointed out that further that in concrete application scenarios, above-mentioned master can be the LWAPP passage with communication port and spare communication passage, also can be the CAPWAP passage, the variation of concrete channel protocol type does not influence protection scope of the present invention.This point, suitable equally in the introduction of follow-up technical solution of the present invention, repeated description no longer hereinafter.
Step S602, WAP (wireless access point) receive the main business information that sends with wireless controller by main with communication port, and business information is sent at least one standby wireless controller by the spare communication passage back up.
Main with can managing a plurality of WAP (wireless access point) wireless controller under, and and then the ruuning situation of managing a plurality of service terminals, therefore, lead with the business information that needs to store each service terminal in the wireless controller, and carry out real-time renewal.And, realize that the key content of backup also just is being this for active and standby wireless controller, therefore, the key point of technical scheme of the present invention is under the situation of not setting up the backup path between the active and standby wireless controller, how to realize the backup of business information.
At this problem, the solution that the present invention proposes is to carry out the forwarding of business information with the WAP (wireless access point) under the wireless controller to standby wireless controller by main, and carries out the back-up storage of business information in standby wireless controller.
Concrete implementation is: main with safeguarding up-to-date business information in the wireless controller, and send to WAP (wireless access point) it under by real-time mode, perhaps according to the default update cycle, periodically to the up-to-date business information of wireless controller transmission.
After WAP (wireless access point) receives main business information with the wireless controller transmission, directly send to standby wireless controller by the spare communication passage, thereby, make standby wireless controller can get access to main up-to-date business information, realize main backup with business information in the wireless controller with wireless controller.
But, in concrete application scenarios, the situation that can exist wireless controller not start, and if the one or more standby wireless controller of leading with wireless controller is in not starting state, then WAP (wireless access point) is carried out state-detection to standby wireless controller according to the preset detection cycle according to the address information of master with the standby wireless controller of wireless controller transmission.
When standby wireless controller was in starting state, WAP (wireless access point) and standby wireless controller were set up the spare communication passage.
Further, when WAP (wireless access point) was carried out state-detection to standby wireless controller, wireless access point cache master used the business information of the transmission of communication channel by the master with wireless controller;
When standby wireless controller is in starting state, and WAP (wireless access point) and standby wireless controller be when setting up the spare communication passage, and the wireless access main business information that sends with wireless controller of naming a person for a particular job sends to standby wireless controller by the spare communication passage.
By above-mentioned business information caching function, WAP (wireless access point) can temporarily be preserved business information when standby wireless controller can't receive business information because of not starting, and unification sends to standby wireless controller after standby wireless controller starts, thereby guarantee that standby wireless controller can not influence the backup effect of business information because of not starting.
In concrete application scenarios, if be in the process of starting state not at standby wireless controller, the up-to-date business information that WAP (wireless access point) needs the buffer memory master to send with wireless controller, if the master changes with the business information in the wireless controller in this process, then WAP (wireless access point) also needs the business information of self buffer memory is upgraded, thereby guarantee, in case standby wireless controller starts, the business information that sends to this standby wireless controller is up-to-date business information, guarantees professional continuity.
By above-mentioned processing procedure, set up the backup relation of business information between the active and standby wireless controller, below further be presented in failure handling mechanisms under this kind back mechanism.
When the master is broken down with communication port with wireless controller or master, standby wireless controller of wireless access point selection becomes the main wireless controller of using, and will switch to the main communication port of using with the spare communication passage of standby wireless controller, continue to keep wireless traffic.
It is to be noted; if in current system, there are a plurality of standby wireless controllers; then WAP (wireless access point) need be led the selection with wireless controller; concrete selective rule can be according to each standby wireless controller media interviews control (Media Access Control; MAC) magnitude relationship of address; or according to the priority relationship of each standby wireless controller; or according to the surplus resources quantity in each standby wireless controller; or according to other default election contest mechanism, the variation of concrete selective rule does not influence protection scope of the present invention.
In the application scenarios of reality; if it is main with having managed a plurality of WAP (wireless access point) under the wireless controller; and there are a plurality of standby wireless controllers in this master with wireless controller; so; when wireless controller breaks down; a plurality of WAP (wireless access point) need be determined the new main wireless controller of using according to above-mentioned selective rule; and; a plurality of WAP (wireless access point) may select same standby wireless controller to become the new main wireless controller of using; also may select a plurality of standby wireless controllers to become the main of each WAP (wireless access point) respectively and use wireless controller, such variation belongs to protection scope of the present invention equally.
It is to narrate with the angle of a WAP (wireless access point) that above-mentioned technical scheme is described; if the master in the system is with there being a plurality of WAP (wireless access point) under the wireless controller; as shown in Figure 7; then the operating process of each WAP (wireless access point) is consistent with the handling process on the above-mentioned WAP (wireless access point); promptly can be considered as when the master is broken down with wireless controller; each WAP (wireless access point) is relatively independent carries out the new selection by controller; the variation of wireless access number of spots can't influence protection scope of the present invention.
By the present invention, the active and standby wireless controller in the system can need not to set up separately under the situation of the backup path between wireless controller, realizes the backup of wireless controller service information, has improved the stability and the fail safe of service operation in the system.
Below in conjunction with concrete application scenarios, technical scheme of the present invention is further detailed, as shown in Figure 8, may further comprise the steps:
Step S801, main with the base address information that disposes active and standby AC on the AC.
Set up the master between step S802, the main AC of using and the AP and use the LWAPP passage, and address information is sent to AP.
In the AP connection procedure, form with the master and use the LWAPP passage of AC to link.The master sends to AP to the address information of " standby AC " with AC, and AP writes down the address information of all standby AC.
Step S803, AP detect each standby AC according to address information and whether are in opening.
All the time start if be equipped with AC, AP connects the master with AC and after obtaining standby AC address information, can't carry out subsequent treatment, and therefore, in order to tackle this situation, technical scheme of the present invention also provides corresponding treatment mechanism.
If have the standby AC that does not start, then execution in step S804;
If each standby AC all starts, then execution in step S805.
Whether step S804, AP regularly survey standby AC and start.
Such timing detects and can carry out according to default sense cycle.Concrete detection mode can be that the standby AC of the not startup that comprised in address information of AP sends detection messages, according to corresponding response or do not receive that response judges whether this standby AC starts.
If standby AC is not activated, then continue circulation execution in step S804;
If standby AC starts, then execution in step S805.
Standby LWAPP passage between step S805, AP foundation and each standby AC.
AP sets up backup LWAPP passage according to the address information of standby AC with standby AC.Many LWAPP channel parallels exist, and wherein, having only a LWAPP passage is that main to use LWAPP passage, other passages be standby LWAPP passage.
Step S806, AP receive the main business information that sends with AC.
As shown in Figure 8, Station (being the described service terminal of preamble) reaches the standard grade, and the master has safeguarded the state machine that Station connects, i.e. business information with AC.Main need be with AC these state machines standby AC that backs up in realtime, in technical scheme of the present invention, this backup operation realizes by AP, therefore, mainly with AC the Station state machine information sent to corresponding AP.
Step S807, AP send business information by standby LWAPP passage to each standby AC.
AP is distributed to standby AC to this Station state machine information by backup LWAPP passage according to the standby AC that it write down.
Need to prove, if also there is the standby AC do not set up standby LWAPP passage this moment, execution in step S808 then, if do not exist the standby AC that does not set up standby LWAPP passage this moment, promptly all standby AC all start, then execution in step S810.
The business information that step S808, AP buffer memory master send with AC.
AP buffer memory master uses the business information of the transmission of communication channel by the master with AC, if exist under the data cached situation of business information, the master has sent new business information by main with the LWAPP passage again with AC, and then AP directly upgrades the business information that has existed with new business information.
When standby wireless controller is in starting state, and WAP (wireless access point) and standby wireless controller be when setting up the spare communication passage, execution in step S809.
Step S809, AP all send to standby AC with the business information of buffer memory.
AP is by standby LWAPP passage, and whole business information of buffer memory are sent to standby AC in batches, if in the system this moment do not had the standby AC that does not start, a business information of then deleting buffer memory.
On the contrary, if also there is other the standby AC that does not start in the system, then continue the buffer memory business information.
The business information that step S810, standby AC receive and storage AP sends is finished the backup of business information.
Standby AC receives the main Station state machine backup information that sends by AP with AC, and generates with main with the consistent state machine of AC in this locality.
If the master breaks down with the LWAPP passage with AC or master, then execution in step S811.
Step S811, AP select the new main AC that uses in standby AC, continue to keep business service.
In case main AC fault or the link failure used, AP interrupts the master and uses the LWAPP passage, selects a standby AC as the new main AC that uses, and switches the pairing standby LWAPP passage of this standby AC of use as the main LWAPP passage of using, and does not interrupt with the maintenance wireless service.
By the present invention, the active and standby wireless controller in the system can need not to set up separately under the situation of the backup path between wireless controller, realizes the backup of wireless controller service information, has improved the stability and the fail safe of service operation in the system.
In order to realize above-mentioned technical scheme, the present invention also provides a kind of WAP (wireless access point), as shown in Figure 9, be applied to comprise main using in the system of wireless controller 1, at least one standby wireless controller 2 and at least one WAP (wireless access point) 3, wherein, main with the address information that disposes whole standby wireless controllers 2 in the wireless controller 1, WAP (wireless access point) 3 and main with setting up the main communication port of using between the wireless controller 1.
Further, as shown in figure 10, WAP (wireless access point) 3 specifically comprises:
Sending module 33 electrically connects with receiver module 31 and processing module 32, the main business information with wireless controller 1 that the spare communication passage that is used for being set up by processing module 32 is received to standby controlled in wireless 2 device sending/receiving modules 31.
In concrete application scenarios, WAP (wireless access point) 3 also comprises detection module 34, and is concrete:
Whether detection module 34 electrically connects with processing module 32, be used to detect the master and break down with communication port with wireless controller 1 or master, and when whether the master broke down with communication port with wireless controller 1 or master, notification handler module 32 was handled;
In concrete application scenarios, when detection module 34 also is used for having at least one standby wireless controller 2 to be in not starting state in system, according to the preset detection cycle whether standby wireless controller 2 is started and to detect.
In concrete application scenarios, WAP (wireless access point) 3 also comprises:
Above-mentioned module can be distributed in a device, also can be distributed in multiple arrangement.Above-mentioned module can be merged into a module, also can further split into a plurality of submodules.
By the present invention, the active and standby wireless controller in the system can need not to set up separately under the situation of the backup path between wireless controller, realizes the backup of wireless controller service information, has improved the stability and the fail safe of service operation in the system.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by hardware, also can realize by the mode that software adds necessary general hardware platform.Based on such understanding, technical scheme of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions with so that computer equipment (can be personal computer, server, the perhaps network equipment etc.) each implements the described method of scene to carry out the present invention.
It will be appreciated by those skilled in the art that accompanying drawing is a preferred schematic diagram of implementing scene, module in the accompanying drawing or flow process might not be that enforcement the present invention is necessary.
It will be appreciated by those skilled in the art that the module in the device of implementing in the scene can be distributed in the device of implementing scene according to implementing scene description, also can carry out respective change and be arranged in the one or more devices that are different from this enforcement scene.The module of above-mentioned enforcement scene can be merged into a module, also can further split into a plurality of submodules.
The invention described above sequence number is not represented the quality of implementing scene just to description.
More than disclosed only be several concrete enforcement scene of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (12)
1. the backup method of a wireless controller service information, it is characterized in that, be applied to comprise main using in the system of wireless controller, at least one standby wireless controller and at least one WAP (wireless access point), wherein, described main with disposing all address informations of described standby wireless controller in the wireless controller, described at least one WAP (wireless access point) and described master use communication port with setting up the master between the wireless controller, and described method comprises:
Described WAP (wireless access point) receives the described main address information with wireless controller pairing whole standby wireless controllers in current system that described master sends with wireless controller by described master with communication port, and sets up the spare communication passage according to described address information and described at least one standby wireless controller;
Described WAP (wireless access point) receives the business information that described master sends with wireless controller by described master with communication port, and described business information is sent to described at least one standby wireless controller by described spare communication passage backs up.
2. the method for claim 1 is characterized in that, also comprises:
When described master is broken down with communication port with wireless controller or described master, the standby wireless controller that one of described wireless access point selection has been set up the spare communication channel becomes the main wireless controller of using, and the described spare communication passage that becomes main standby wireless controller with wireless controller switched to the main communication port of use, continue the maintenance wireless traffic.
3. method as claimed in claim 2, it is characterized in that, when comprising in the described system that a master uses the system of wireless controller, a plurality of standby wireless controllers and a plurality of WAP (wireless access point), described a plurality of WAP (wireless access point) respectively and describedly main mainly use communication port with setting up between the wireless controller, described a plurality of WAP (wireless access point) are set up the spare communication passage respectively and between described a plurality of standby wireless controller;
If described master is broken down with communication port with wireless controller or described master, described a plurality of WAP (wireless access point) selects a standby wireless controller of having set up the spare communication channel to become the main wireless controller of using respectively according to default selective rule, and the described spare communication passage that becomes main standby wireless controller with wireless controller switched to the main communication port of use, continue the maintenance wireless traffic.
4. method as claimed in claim 3 is characterized in that, described default selective rule specifically comprises:
The surplus resources quantity of described standby wireless controller; Or,
The priority facility of described standby wireless controller; Or,
The MAC Address order of described standby wireless controller.
5. the method for claim 1, it is characterized in that, described WAP (wireless access point) receives the described main address information with wireless controller pairing whole standby wireless controllers in current system that described master sends with wireless controller by described master with communication port, and set up in the process of spare communication passage according to described address information and described at least one standby wireless controller, specifically also comprise:
If described standby wireless controller is in not starting state, described WAP (wireless access point) is carried out state-detection to described standby wireless controller according to the preset detection cycle according to the address information of described master with the standby wireless controller of wireless controller transmission;
When described standby wireless controller was in starting state, described WAP (wireless access point) and described standby wireless controller were set up the spare communication passage.
6. method as claimed in claim 5, it is characterized in that, described WAP (wireless access point) receives the business information that described master sends with wireless controller by described master with communication port, and described business information sent to described at least one standby wireless controller by described spare communication passage, specifically also comprise:
If described standby wireless controller is in not starting state, the business information that the described master of described wireless access point cache sends with wireless controller;
When described standby wireless controller is in starting state, when described WAP (wireless access point) and described standby wireless controller were set up the spare communication passage, the described wireless access described master that names a person for a particular job sent to described standby wireless controller with the business information that wireless controller sends by described spare communication passage.
7. as any described method in the claim 1 to 6, it is characterized in that described master is specially with communication port and described spare communication passage:
The control of Lightweight Access Point Protocol LWAPP passage or WAP (wireless access point) and agreement CAPWAP is provided passage.
8. WAP (wireless access point), it is characterized in that, be applied to comprise main using in the system of wireless controller, at least one standby wireless controller and at least one WAP (wireless access point), wherein, described main with disposing all address informations of described standby wireless controller in the wireless controller, described WAP (wireless access point) and described master use communication port with setting up the master between the wireless controller, comprising:
Receiver module is used for receiving described main address information and the described main business information with wireless controller of using wireless controller at the pairing whole standby wireless controllers of current system that described master sends with wireless controller by described master with communication port;
Processing module electrically connects with described receiver module, is used for the address information of the described standby wireless controller that receives according to described receiver module, sets up the spare communication passage with described at least one standby wireless controller;
Sending module, electrically connect with described receiver module and described processing module, the spare communication passage that is used for setting up by described processing module sends the described main business information with wireless controller that described receiver module receives to described standby wireless controller.
9. WAP (wireless access point) as claimed in claim 8 is characterized in that, also comprises detection module:
Described detection module, electrically connect with described processing module, be used to detect described master and whether break down with communication port, when described master is broken down with communication port with wireless controller or described master, notify described processing module to handle with wireless controller or described master;
Described processing module, also be used for when described detection module detects described master and breaks down with communication port with wireless controller or described master, in the standby wireless controller of having set up the spare communication passage, select a standby wireless controller to become the main wireless controller of using, and the spare communication passage of described standby wireless controller switched to the main communication port of use, continue the maintenance wireless traffic.
10. WAP (wireless access point) as claimed in claim 9 is characterized in that,
Whether described detection module when also being used for having at least one standby wireless controller to be in not starting state in described system, starting described standby wireless controller according to the preset detection cycle and to detect.
11. WAP (wireless access point) as claimed in claim 10 is characterized in that, also comprises:
Cache module, electrically connect with described detection module, described receiver module and described sending module, when being used for having at least one standby wireless controller to be in not starting state in described system, the described master that described receiver module received is carried out buffer memory with the business information of wireless controller, and when described detection module detects described standby wireless controller and is in starting state, notify described sending module, the described main business information with wireless controller of buffer memory is sent to described standby wireless controller.
12., it is characterized in that described master is specially with communication port and described spare communication passage as any described WAP (wireless access point) in the claim 8 to 11:
The control of Lightweight Access Point Protocol LWAPP passage or WAP (wireless access point) and agreement CAPWAP is provided passage.
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| CN101765228B (en) * | 2010-01-29 | 2012-07-11 | 杭州华三通信技术有限公司 | Recovery method of CAPWAP tunnel and device thereof |
| CN102271125B (en) * | 2010-06-02 | 2014-05-14 | 杭州华三通信技术有限公司 | Method for carrying out 802.1X authentication cross equipment, access equipment and access control equipment |
| CN102281563A (en) * | 2010-06-11 | 2011-12-14 | 海能达通信股份有限公司 | Communication system, switching method applied to communication system, and network management server |
| CN101951616B (en) * | 2010-07-06 | 2013-05-29 | 北京星网锐捷网络技术有限公司 | Switching method, system and device for wireless controller |
| CN101977124B (en) * | 2010-11-05 | 2013-09-04 | 山东中创软件工程股份有限公司 | Service clustering method and system based on ZooKeeper technology |
| JP5295288B2 (en) * | 2011-02-28 | 2013-09-18 | 株式会社エヌ・ティ・ティ・ドコモ | Mobile communication system, mobile communication method and radio control apparatus used in mobile communication system |
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| WO2011157149A2 (en) * | 2011-05-31 | 2011-12-22 | 华为技术有限公司 | Method, communication device and system, and service request device for main/standby switch between communication devices |
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| CN106936608B (en) * | 2015-12-29 | 2020-09-18 | 华为技术有限公司 | Method, related equipment and system for establishing SSH connection |
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