CN108934035B - Data backup method and device - Google Patents
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- CN108934035B CN108934035B CN201810671604.7A CN201810671604A CN108934035B CN 108934035 B CN108934035 B CN 108934035B CN 201810671604 A CN201810671604 A CN 201810671604A CN 108934035 B CN108934035 B CN 108934035B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/084—Configuration by using pre-existing information, e.g. using templates or copying from other elements
- H04L41/0846—Configuration by using pre-existing information, e.g. using templates or copying from other elements based on copy from other elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/12—Access point controller devices
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Abstract
The application provides a data backup method and device. In the application, when the main AC is newly associated with the AP, the main AC automatically sends the AP configuration information of the newly associated AP to the standby AC through the connection between the main AC and the standby AC, and when the standby AC receives the AP configuration information sent when the main AC is newly associated with the AP, the received AP configuration information is locally recorded, so that the AP configuration information is automatically synchronized from the main AC to the standby AC, and the problems of complicated configuration, large workload and the like caused by manually backing up the configuration on the main AC to the standby AC in the prior art are solved. Further, in the application, when the main AC updates the locally recorded AP configuration information, the main AC synchronizes the update instruction and the AP ID allocated to the updated AP configuration information to the standby AC in real time, so that the main AC and the standby AC synchronously update the AP configuration information finally.
Description
Technical Field
The present application relates to network communication technologies, and in particular, to a data backup method and apparatus.
Background
In a wireless network architecture, an Access Controller (AC) is responsible for managing an Access Point (AP). Such management mainly includes configuration management, version management, alarm management, and the like.
In wireless networks of different scales, the number of APs managed by one AC varies from tens to hundreds, and when one AC fails, the management of tens or hundreds of APs may be affected.
The N +1 backup scheme is one of the most common schemes for backing up an AC. The N +1 backup scheme is that N main ACs are backed up by one backup AC, an AP associated with each main AC establishes connection only with the associated main AC, and connection is established with the backup AC only by switching the main AC and the backup AC when the associated main AC is abnormal.
Generally, in order to ensure that the AP can provide the same wireless service to the user after the main AC and the standby AC are switched, configurations (including configurations of the AP and configurations related to radio frequency) on the main AC and the standby AC need to be consistent. In the N +1 backup scheme, the configuration on the main AC is often backed up to the standby AC manually, which is cumbersome to configure and has a large workload.
Disclosure of Invention
The application provides a data backup method and device to achieve automatic synchronization of AP configuration information to a standby AC by a main AC.
The technical scheme provided by the application comprises the following steps:
a data backup method is applied to an Access Controller (AC), and comprises the following steps:
when the local AC is used as a main AC, locally recording first AP configuration information of a first AP newly associated with the local AC and sending the first AP configuration information to a standby AC through connection between the local AC and the standby AC, wherein the first AP configuration information at least comprises: the AC allocates a first AP identification ID for the first AP configuration information; when the first AP configuration information is updated locally, the first AP ID and the updating instruction are sent to the standby AC through the connection between the AC and the standby AC;
when the AC serves as a standby AC, receiving and recording second AP configuration information of a second AP newly associated with a main AC, and creating a mapping table having a mapping relationship with the second AP configuration information, where the mapping table at least includes: a second AP ID to which the second AP configuration information is allocated; and when receiving an update instruction and a second AP ID which are sent when the main AC updates the second AP configuration information, searching the mapping table item according to the received second AP ID, and updating the second AP configuration information which has a mapping relation with the searched mapping table item according to the received update instruction.
A data backup apparatus, applied to an access controller AC, comprising:
a first configuration unit, configured to, when the local AC is used as a main AC, locally record first AP configuration information of a first AP newly associated with the local AC and send the first AP configuration information to a standby AC through a connection between the local AC and the standby AC, where the first AP configuration information at least includes: the AC allocates a first AP identification ID for the first AP configuration information;
a first updating unit, configured to, when the local AC is used as a main AC, send a first AP ID and an update instruction to a standby AC through a connection between the local AC and the standby AC if the first AP configuration information is locally updated;
a second configuration unit, configured to receive and record second AP configuration information of a second AP newly associated with a primary AC when the AC serves as a standby AC, and create a mapping table having a mapping relationship with the second AP configuration information, where the mapping table at least includes: a second AP ID to which the second AP configuration information is allocated;
and the second updating unit is used for searching the mapping table item according to the received second AP ID when the local AC is used as the standby AC and an updating instruction and a second AP ID which are sent when the main AC updates the second AP configuration information are received, and updating the second AP configuration information which has a mapping relation with the searched mapping table item according to the received updating instruction.
According to the technical scheme, when the main AC is newly associated with the AP, the main AC automatically sends AP configuration information of the newly associated AP to the standby AC through connection between the main AC and the standby AC, and when the standby AC receives the AP configuration information sent when the main AC is newly associated with the AP, the received AP configuration information is locally recorded, so that the AP configuration information is automatically synchronized from the main AC to the standby AC, and the problems of complicated configuration, large workload and the like caused by manually backing up the configuration on the main AC to the standby AC in the prior art are solved.
Further, in the application, when the main AC updates the locally recorded AP configuration information, the main AC synchronizes the update instruction and the AP ID allocated to the updated AP configuration information to the standby AC in real time, so that the main AC and the standby AC synchronously update the AP configuration information finally.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a flow chart of a method provided herein;
FIG. 2 is a schematic diagram of an embodiment of networking provided herein;
fig. 3 is a schematic structural diagram of the device provided in the present application.
Detailed Description
In the application, when the main AC is newly associated with the AP, the main AC actively sends the AP configuration information of the newly associated AP to the standby AC through the connection between the main AC and the standby AC, and when the standby AC receives the AP configuration information sent when the main AC is newly associated with the AP, the AP configuration information sent by the main AC is locally recorded, so that the AP configuration information is automatically synchronized from the main AC to the standby AC, and the problems of complicated configuration, large workload and the like caused by manually backing up the configuration on the main AC to the standby AC in the prior art are solved.
In order to make the present application more clear, the present application is described by way of example with reference to the accompanying drawings:
referring to fig. 1, fig. 1 is a flow chart of a method provided by the present application. The method is applied to AC. Here, the AC may be a main AC or a backup AC.
As shown in fig. 1, the process may include the following steps:
102, locally recording first AP configuration information of a first AP newly associated with the local AC and sending the first AP configuration information to the standby AC through connection between the local AC and the standby AC; the first AP configuration information includes at least: the local AC allocates a first AP Identifier (ID) for the first AP configuration information; and when the first AP configuration information is updated locally, sending the first AP ID and the updating instruction to the standby AC through the connection between the AC and the standby AC.
This step 102 is performed when the AC is the main AC. When the AP is used as the main AC, once the AP (for example, the first AP) is newly associated, except that the first AP configuration information of the first AP is locally recorded, the newly associated first AP configuration information of the first AP is actively sent to the standby AC through the connection between the main AC and the standby AC, so as to synchronize the configuration information of the same AP on the main AC and the standby AC.
Here, the first AP configuration information, and the first AP ID are only named for convenience of description, and are not limited. For one embodiment, the first AP configuration information is assigned with a first AP ID, so as to facilitate fast local query of the first AP configuration information according to the first AP ID. The first AP ID has a function of being short and helping to quickly find the first AP configuration information, compared to the identification of the AP itself, such as a MAC address and the like.
As an embodiment, in this step 102, the locally recording the first AP configuration information of the first AP newly associated with the AC may specifically include: the method comprises the steps of creating a first AP configuration template locally, and recording first AP configuration information in the first AP configuration template. Finally, the first AP configuration information of the first AP newly associated with the local AC is locally recorded. Based on the above description of the first AP ID, the first AP ID may also be equivalent to an identifier of the configuration template for the first AP on the premise of creating the configuration template for the first AP.
As an embodiment, in the present application, the first AP configuration information may include, in addition to the first AP ID: the device model of the first AP, the serial number of the first AP, the working channel bandwidth, and the like.
In addition, for updating the first AP configuration information in step 102, the following description may be specifically referred to, and details are not repeated here.
Here, the second AP configuration information, and the second AP ID are only named for convenience of description, and are not limited.
As an embodiment, in this step 103, in order to find the locally recorded second AP configuration information locally and quickly, an AP ID (denoted as a third AP ID) may be further allocated to the received second AP configuration information. Here, the purpose of allocating an AP ID (denoted as a third AP ID) to the received second AP configuration information is to facilitate fast local query of the second AP configuration information according to the third AP ID.
As an embodiment, in this step 103, the recording of the second AP configuration information of the second AP newly associated with the main AC may specifically include: and creating a second AP configuration template locally, and recording second AP configuration information in the second AP configuration template. And finally, recording the second AP configuration information of the second AP newly associated with the main AC in a local record. On the premise of creating the second AP configuration template, the third AP ID may be equivalent to an identifier allocated to the second AP configuration template, and the creating of the mapping table entry having a mapping relationship with the second AP configuration information in step 103 may specifically be: and creating a mapping table item having a mapping relation with the second AP configuration template.
As an embodiment, the mapping table entry created in this step 103 at least includes:
and sending the ID of the main AC, the ID of the second AP, the ID of the local AC and the third APID of the second AP configuration information. The third AP ID serves as a link to map and associate the mapping table entry with the second AP configuration template (also referred to as second AP configuration information).
As an embodiment, in the present application, the ID of the master AC that sends the second AP configuration information may be: the IP address or MAC address of the main AC, and similarly, the ID of the local AC may be the IP address or MAC address of the local AC.
As another embodiment, in the present application, all the main AC and the standby AC may be divided into the same AC group, and each AC (including the main AC and the standby AC) in the AC group may be assigned with a member identifier. Wherein different ACs in the same AC group have different member identifications. Based on this, in the present application, the ID of the master AC and the ID of the own AC that transmit the second AP configuration information may be group member identifiers in an AC group, respectively.
Thus, the flow shown in fig. 1 is completed.
As can be seen from the flow shown in fig. 1, in the present application, when a main AC newly associates an AP, the main AC automatically sends AP configuration information of the newly associated AP to a standby AC through a connection between the main AC and the standby AC, and when the standby AC receives the AP configuration information sent when the main AC newly associates an AP, the standby AC locally records the received AP configuration information, so that the AP configuration information is automatically synchronized from the main AC to the standby AC, and the problems of complicated configuration, large workload, and the like caused by manually backing up the configuration on the main AC to the standby AC in the prior art are solved.
Further, in the application, when the main AC updates the locally recorded AP configuration information, the main AC synchronizes the update instruction and the AP ID allocated to the updated AP configuration information to the standby AC in real time, so that the main AC and the standby AC synchronously update the AP configuration information finally.
As an embodiment, in step 102, when the local AC is used as the main AC and the first AP configuration information is locally updated, sending the first AP ID and the update instruction to the standby AC through the connection between the local AC and the standby AC may include: modifying first AP configuration information according to a received modification command, wherein the modification command is used for modifying at least one piece of information in the first AP configuration information, and sending the modification command and a first AP ID allocated to the first AP to a standby AC through connection between the AC and the standby AC;
correspondingly, in step 103, when the local AC is used as the standby AC, the local AC receives the modification command sent by the main AC when modifying the second AP configuration information and the second AP ID allocated to the second AP, locally searches for the mapping table entry including the second AP ID, and modifies the second AP configuration information having a mapping relationship with the found mapping table entry according to the received modification command. And finally, synchronously modifying the AP configuration information by the main AC and the standby AC.
As an embodiment, in step 102, when the local AC is used as the main AC and the first AP configuration information is locally updated, sending the first AP ID and the update instruction to the standby AC through the connection between the local AC and the standby AC includes: and deleting the first AP configuration information, and sending the first AP ID and a deletion instruction to the standby AC through the connection between the local AC and the standby AC.
Correspondingly, in step 103, when the local AC is used as the standby AC, the second AP ID and the deletion instruction sent when the main AC deletes the second AP configuration information are received, the mapping table entry including the second AP ID is locally searched, and the searched mapping table entry and the second AP configuration information having a mapping relationship with the searched mapping table entry are deleted according to the deletion instruction. And finally, synchronously deleting the AP configuration information on the main AC and the standby AC.
The flow shown in fig. 1 is described below by taking N +1 cold backup as an example through an embodiment:
referring to fig. 2, fig. 2 is a networking diagram of an embodiment provided in the present application. The networking shown in fig. 2 includes N +1 AC, where N total AC of AC20_1 and AC20_2 … … AC _ N is a main AC, and AC20_ N +1 is a 1-standby AC. In fig. 2, N main ACs (AC20_1, AC20_2 … … AC _ N) and 1 standby AC (AC20_ N +1) constitute an N +1 backup.
In fig. 2, N primary ACs (AC20_1, AC20_2 … … AC _ N) and 1 backup AC (AC20_ N +1) are in the same AC group (denoted as AC group 200). The N primary ACs (AC20_1, AC20_2 … … AC _ N) and 1 backup AC (AC20_ N +1) in the AC packet 200 each have a unique member identification.
In fig. 2, N main ACs (AC20_1, AC20_2 … … AC _ N) are connected to 1 backup AC (AC20_ N +1), respectively. The connection type here may be a UDP connection.
Taking the main AC shown in fig. 2, i.e., AC20_1 as an example, the other main AC principles are similar:
as shown in fig. 2, AC20_1 is newly associated with an AP (denoted as AP300), then,
the AC20_1 locally creates an AP configuration template (denoted as AP configuration template 301) associated with the AP 300.
The AC20_1 assigns an AP ID (denoted as AP302) to the AP configuration template 301, and records configuration information of the AP300 in the AP configuration template 301. At this time, to highlight that the AC20_1 is the main AC, the AC20_1 also assigns a priority to the AP300 by using the function of the main AC, where the priority may be a designated priority for indicating that the main AC assigns the AP.
The AC20_1 transmits the configuration information of the AP300 to the AC20_ N +1 through the UDP connection between the local AC20_1 and the AC20_ N + 1. Here, the configuration information of the AP300 transmitted by the AC20_1 may include the model numbers, serial numbers, and the like of the AP302 and the AP300 described above.
The AC20_ N +1 receives the configuration information of the AP300 transmitted by the AC20_ 1.
The AC20_ N +1 parses the received configuration information of the AP300, obtains information such as the model number and serial number of the AP302 and the AP300, and creates an AP configuration template (referred to as AP configuration template 303) locally.
The AC20_ N +1 assigns an AP ID (denoted as AP304) to the AP configuration template 303, and records the acquired information (configuration information of the AP300) such as the model numbers and serial numbers of the AP302 and the AP300 in the AP configuration template 303. At this time, the AC20_ N +1 may also specify the main AC (AC20_1) where the AP302 is located.
The AC20_ N +1 creates a mapping table entry having a mapping relationship with information (configuration information of the AP300) such as the model number, the serial number, and the like of the AP302, the AP300, which are recorded by the AP configuration template 303. Table 1 shows the structure of the mapping table entry:
| ID of the main AC | AP ID on main AC | ID of spare AC | AP ID on standby AC |
| AC20_1 | AP302 | AC20_N+1 | AP304 |
TABLE 1
Therefore, automatic synchronization of AP configuration information from the main AC to the standby AC can be completed, and the problems of complicated configuration, large workload and the like caused by manually backing up the configuration on the main AC to the standby AC in the prior art are solved.
Then, when the AC20_1 receives a modification command for modifying at least one piece of information in the configuration information of the AP300, the AC20_1 modifies the configuration information of the AP300 according to the modification command, and sends the modification command and the AP302 allocated by the AC20_1 to the AP configuration template 301 (or the configuration information of the AP300 recorded by the AP configuration template 301) to the AC20_ N +1 through the UDP connection between the AC20_1 and the AC20_ N + 1.
The AC20_ N +1 receives the modification command sent by the AC20_1 and the AP 302.
The AC20_ N +1 finds the mapping table entry shown in table 1 according to the received AP302 and the AC20_1 that sent the AP302, and obtains the AP304 based on the mapping table entry shown in table 1.
The AC20_ N +1 modifies the AP configuration template 303 having a mapping relationship with the AP304 (or configuration information of the AP300 such as model numbers, serial numbers, and the like of the AP302 and the AP300 recorded in the AP configuration template 303) according to the received modification command. Finally, the configuration information of the AP300 is modified synchronously by the main AC and the standby AC.
Thereafter, when the AC20_1 deletes the AP configuration template 301 (or deletes the configuration information of the AP300 recorded by the AP configuration template 301), the AC20_1 transmits the AP302 to the AC20_ N +1 through the UDP connection between the AC20_1 and the AC20_ N + 1.
When the AC20_ N +1 receives the AP302, the mapping table shown in table 1 is found according to the received AP302 and the AC20_1 that sent the AP302, and the AP304 is obtained based on the mapping table shown in table 1.
The AC20_ N +1 finds the AP configuration template 303 with the mapping relationship according to the AP 304.
The AC20_ N +1 deletes the found mapping table entry shown in table 1 and deletes the found AP configuration template 303 (or the configuration information of the AP300 such as the model number, serial number, etc. of the AP302 and the AP300 recorded in the AP configuration template 303). And finally, the configuration information of the AP300 is synchronously deleted on the main AC and the standby AC.
This completes the description of the present embodiment.
The method provided by the present application is described above, and the device provided by the present application is described below:
referring to fig. 3, fig. 3 is a diagram illustrating the structure of the apparatus according to the present invention. The device is applied to AC, and comprises:
a first configuration unit, configured to, when the local AC is used as a main AC, locally record first AP configuration information of a first AP newly associated with the local AC and send the first AP configuration information to a standby AC through a connection between the local AC and the standby AC, where the first AP configuration information at least includes: the AC allocates a first AP identification ID for the first AP configuration information;
a first updating unit, configured to, when the local AC is used as a main AC, send a first AP ID and an update instruction to a standby AC through a connection between the local AC and the standby AC if the first AP configuration information is locally updated;
a second configuration unit, configured to receive and record second AP configuration information of a second AP newly associated with a primary AC when the AC serves as a standby AC, and create a mapping table having a mapping relationship with the second AP configuration information, where the mapping table at least includes: a second AP ID to which the second AP configuration information is allocated;
and the second updating unit is used for searching the mapping table item according to the received second AP ID when the local AC is used as the standby AC and an updating instruction and a second AP ID which are sent when the main AC updates the second AP configuration information are received, and updating the second AP configuration information which has a mapping relation with the searched mapping table item according to the received updating instruction.
As an embodiment, when locally updating the first AP configuration information, the sending, by the first updating unit, the first AP ID and the update instruction to the standby AC through the connection between the local AC and the standby AC includes:
and modifying the first AP configuration information according to a received modification command, wherein the modification command is used for modifying at least one piece of information in the first AP configuration information, and sending the modification command and the first AP ID to a standby AC through the connection between the AC and the standby AC.
As an embodiment, when locally updating the first AP configuration information, the sending, by the first updating unit, the first AP ID and the update instruction to the standby AC through the connection between the local AC and the standby AC includes:
and deleting the first AP configuration information, and sending the first AP ID and a deletion instruction to the standby AC through the connection between the local AC and the standby AC.
As an embodiment, the recording, by the second configuration unit, the second AP configuration information of the second AP newly associated with the master AC further includes: distributing a corresponding third AP ID for the second AP configuration information;
the mapping table entry at least comprises: sending the ID of the main AC, the ID of the second AP, the ID of the local AC and the ID of the third AP of the second AP configuration information;
the updating, by the second updating unit, the second AP configuration information having a mapping relationship with the found mapping table entry according to the received update instruction includes: acquiring the third AP ID from the searched mapping table item; and updating the second AP configuration information corresponding to the third AP ID according to the received updating instruction.
As an embodiment, when the present AC is the main AC, the present AC and the standby AC are in the same AC group; when the local AC is used as the standby AC, the local AC and the main AC which sends the second AP configuration information are in the same AC group;
wherein, the ID of each AC in the same AC group is distinguished by the member identification, and different ACs in the same AC group have different member identifications.
The description of the apparatus provided in the present application is thus completed.
The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the scope of protection of the present application.
Claims (10)
1. A data backup method is applied to an Access Controller (AC), and comprises the following steps:
when the local AC is used as a main AC in an N +1 backup scene, locally recording first AP configuration information of a first AP newly associated with the local AC and sending the first AP configuration information to a standby AC through connection between the local AC and the standby AC, wherein the first AP configuration information at least comprises: the AC allocates a first AP identification ID for the first AP configuration information; when the first AP configuration information is updated locally, the first AP ID and the updating instruction are sent to the standby AC through the connection between the AC and the standby AC;
when the AC serves as a standby AC in an N +1 backup scenario, receiving and recording second AP configuration information of a second AP newly associated with a main AC, and creating a mapping table having a mapping relationship with the second AP configuration information, where the mapping table at least includes: a second AP ID to which the second AP configuration information is allocated; and when receiving an update instruction and a second AP ID which are sent when the main AC updates the second AP configuration information, searching the mapping table item according to the received second AP ID, and updating the second AP configuration information which has a mapping relation with the searched mapping table item according to the received update instruction.
2. The method of claim 1, wherein the sending the first AP ID and the update instruction to the standby AC through the connection between the local AC and the standby AC when the first AP configuration information is updated locally comprises:
and modifying the first AP configuration information according to a received modification command, wherein the modification command is used for modifying at least one piece of information in the first AP configuration information, and sending the modification command and the first AP ID to a standby AC through the connection between the AC and the standby AC.
3. The method of claim 1, wherein the sending the first AP ID and the update instruction to the standby AC through the connection between the local AC and the standby AC when the first AP configuration information is updated locally comprises:
and deleting the first AP configuration information, and sending the first AP ID and a deletion instruction to the standby AC through the connection between the local AC and the standby AC.
4. The method of any of claims 1 to 3, wherein the recording second AP configuration information of the second AP newly associated with the master AC further comprises: distributing a corresponding third AP ID for the second AP configuration information;
the mapping table entry at least comprises: sending the ID of the main AC, the ID of the second AP, the ID of the local AC and the ID of the third AP of the second AP configuration information;
the updating the second AP configuration information having a mapping relationship with the found mapping table entry according to the received update instruction includes: acquiring the third AP ID from the searched mapping table item; and updating the second AP configuration information corresponding to the third AP ID according to the received updating instruction.
5. The method of claim 4,
when the local AC is used as a main AC in an N +1 backup scene, the local AC and the standby AC are in the same AC group;
when the local AC is used as a standby AC in an N +1 backup scene, the local AC and the main AC which sends the second AP configuration information are in the same AC group;
wherein, the ID of each AC in the same AC group is distinguished by the member identification, and different ACs in the same AC group have different member identifications.
6. A data backup device, applied to an access controller AC, comprising:
a first configuration unit, configured to, when the local AC is used as a main AC in an N +1 backup scenario, locally record first AP configuration information of a first AP newly associated with the local AC and send the first AP configuration information to a standby AC through a connection between the local AC and the standby AC, where the first AP configuration information at least includes: the AC allocates a first AP identification ID for the first AP configuration information;
a first updating unit, configured to, when the local AC is a main AC in an N +1 backup scenario, send the first AP ID and the update instruction to the standby AC through a connection between the local AC and the standby AC if the first AP configuration information is locally updated;
a second configuration unit, configured to receive and record second AP configuration information of a second AP newly associated with a primary AC when the local AC is used as a standby AC in an N +1 backup scenario, and create a mapping table having a mapping relationship with the second AP configuration information, where the mapping table at least includes: a second AP ID to which the second AP configuration information is allocated;
and the second updating unit is used for searching the mapping table item according to the received second AP ID when the local AC is used as the standby AC in the N +1 backup scene and an updating instruction and a second AP ID which are sent when the main AC updates the second AP configuration information are received, and updating the second AP configuration information which has a mapping relation with the searched mapping table item according to the received updating instruction.
7. The apparatus of claim 6, wherein the first updating unit, when locally updating the first AP configuration information, sends the first AP ID and the update instruction to the standby AC through the connection between the local AC and the standby AC comprises:
and modifying the first AP configuration information according to a received modification command, wherein the modification command is used for modifying at least one piece of information in the first AP configuration information, and sending the modification command and the first AP ID to a standby AC through the connection between the AC and the standby AC.
8. The apparatus of claim 6, wherein the first updating unit, when locally updating the first AP configuration information, sends the first AP ID and the update instruction to the standby AC through the connection between the local AC and the standby AC comprises:
and deleting the first AP configuration information, and sending the first AP ID and a deletion instruction to the standby AC through the connection between the local AC and the standby AC.
9. The apparatus according to any of claims 6 to 8, wherein the second configuration unit records second AP configuration information of a second AP newly associated with the main AC further comprises: distributing a corresponding third AP ID for the second AP configuration information;
the mapping table entry at least comprises: sending the ID of the main AC, the ID of the second AP, the ID of the local AC and the ID of the third AP of the second AP configuration information;
the updating, by the second updating unit, the second AP configuration information having a mapping relationship with the found mapping table entry according to the received update instruction includes: acquiring the third AP ID from the searched mapping table item; and updating the second AP configuration information corresponding to the third AP ID according to the received updating instruction.
10. The apparatus of claim 9,
when the local AC is used as a main AC in an N +1 backup scene, the local AC and the standby AC are in the same AC group;
when the local AC is used as a standby AC in an N +1 backup scene, the local AC and the main AC which sends the second AP configuration information are in the same AC group;
wherein, the ID of each AC in the same AC group is distinguished by the member identification, and different ACs in the same AC group have different member identifications.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN108934035B (en) * | 2018-06-26 | 2020-07-07 | 新华三技术有限公司 | Data backup method and device |
| CN110035476B (en) * | 2019-03-22 | 2021-12-17 | 北京星网锐捷网络技术有限公司 | Wireless network control method, wireless access point, access controller and system |
| CN110087333B (en) * | 2019-04-26 | 2020-12-04 | 新华三技术有限公司 | Method, device, equipment and storage medium for preventing service interruption |
| CN111405216B (en) * | 2019-10-25 | 2022-06-28 | 杭州海康威视系统技术有限公司 | Configuration method, device and equipment and storage medium |
| CN114726718A (en) * | 2022-03-23 | 2022-07-08 | 新华三技术有限公司 | Configuration information synchronization method and device |
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| CN108934035A (en) | 2018-12-04 |
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