CN107948002B - AP access control method and device - Google Patents

AP access control method and device Download PDF

Info

Publication number
CN107948002B
CN107948002B CN201711476512.5A CN201711476512A CN107948002B CN 107948002 B CN107948002 B CN 107948002B CN 201711476512 A CN201711476512 A CN 201711476512A CN 107948002 B CN107948002 B CN 107948002B
Authority
CN
China
Prior art keywords
backup group
equipment
information
backup
role
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201711476512.5A
Other languages
Chinese (zh)
Other versions
CN107948002A (en
Inventor
杨印州
王富涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou DPTech Technologies Co Ltd
Original Assignee
Hangzhou DPTech Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hangzhou DPTech Technologies Co Ltd filed Critical Hangzhou DPTech Technologies Co Ltd
Priority to CN201711476512.5A priority Critical patent/CN107948002B/en
Publication of CN107948002A publication Critical patent/CN107948002A/en
Application granted granted Critical
Publication of CN107948002B publication Critical patent/CN107948002B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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
    • H04L41/06—Management of faults, events, alarms or notifications
    • H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
    • H04L41/0668—Management of faults, events, alarms or notifications using network fault recovery by dynamic selection of recovery network elements, e.g. replacement by the most appropriate element after failure
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W84/00—Network topologies
    • H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
    • H04W84/10—Small scale networks; Flat hierarchical networks
    • H04W84/12—WLAN [Wireless Local Area Networks]

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application provides an AP access control method and device, which are applied to an AC and comprise the following steps: when the role of the equipment in the AC backup group is the main equipment, receiving an association request sent by an AP; wherein the AC backup group is formed by a plurality of ACs based on VRRP, the association request is constructed by the AP based on a virtual IP address of the AC backup group; and establishing a CAPWAP tunnel with the AP based on the association request. The technical scheme of the application can reduce the interruption time of the user service, improve the reliability of the WLAN, save the system resources of the AP and improve the user service processing efficiency of the AP.

Description

AP access control method and device
Technical Field
The present application relates to the field of communications technologies, and in particular, to an AP access control method and apparatus.
Background
With the continuous development of information technology, the internet scale is also expanding, and Wireless Local Area Networks (WLANs) have become an indispensable data transmission means in the internet era. However, as the number of users of WLAN networks continues to increase and the scale of network deployment continues to expand, the coverage of WLAN networks also increases. In this case, if the WLAN network fails or even breaks down, it will cause immeasurable losses to the user. Therefore, how to improve the reliability of the WLAN network becomes one of the problems to be solved urgently in the development of WLAN technology.
Disclosure of Invention
In view of this, the present application provides an AP access control method and apparatus to improve reliability of a WLAN network.
Specifically, the method is realized through the following technical scheme:
in a first aspect, the present application provides an AP access control method, where the method is applied to an AC, and the method includes:
when the role of the equipment in the AC backup group is the main equipment, receiving an association request sent by an AP; wherein the AC backup group is formed by a plurality of ACs based on VRRP, the association request is constructed by the AP based on a virtual IP address of the AC backup group;
and establishing a CAPWAP tunnel with the AP based on the association request.
In a second aspect, the present application provides an AP access control apparatus, which is applied to an AC, and includes:
a first receiving unit, configured to receive, when a role of the device in the AC backup group is a master device, an association request sent by an AP; wherein the AC backup group is formed by a plurality of ACs based on VRRP, the association request is constructed by the AP based on a virtual IP address of the AC backup group;
and the establishing unit is used for establishing a CAPWAP tunnel with the AP based on the association request.
Analyzing the above technical solution, the AP may access the WLAN network through an AC backup group formed by multiple ACs based on VRRP, a main AC in the AC backup group may provide access service for the AP, and after the main AC fails, a standby AC in the AC backup group may be directly switched to the main AC to continue providing access service for the AP. By adopting the mode, the AP can directly switch the standby AC into the main AC without waiting for the overtime of the CAPWAP tunnel between the AP and the main AC, and the seamless switching of the AP flow can be realized, thereby greatly reducing the interruption time of user service and improving the reliability of the WLAN network. In addition, because the AP only needs to maintain one CAPWAP tunnel all the time, the system resource of the AP can be saved, and the user service processing efficiency of the AP is improved.
Drawings
FIG. 1 is a networking architecture diagram of a WLAN network;
fig. 2 is a flowchart illustrating an AP access control method according to an exemplary embodiment of the present application;
fig. 3 is a hardware structure diagram of a device in which an AP access control apparatus according to an exemplary embodiment of the present application is located;
fig. 4 is a block diagram of an AP access control apparatus according to an exemplary embodiment of the present application.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present application, as detailed in the appended claims.
The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present application. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.
In the related art, the AP may establish connection with two ACs, respectively, to form a dual link backup, reduce interruption time of a user service, and improve reliability of a WLAN network.
Please refer to fig. 1, which is a diagram illustrating a WLAN network. In the WLAN network shown in fig. 1, two ACs, AC1 and AC2, are included. Assuming that the AC1 is a primary AC And the AC2 is a standby AC, the AP may first establish a CAPWAP (Control And Provisioning Protocol for Wireless Access Points) tunnel 1 with the AC1 as a primary link, And the subsequent AC1 may provide an Access service to the AP based on the CAPWAP tunnel 1. The message sent by the AC1 to the AP carries address information of the AC2, the AP can acquire the address information of the AC2 after receiving the message, a CAPWAP tunnel 2 is established with the AC2 as a standby link based on the address information, and the subsequent AC2 only processes the CAPWAP keep-alive message with the AP. When the AC1 fails, the AP may enable the original backup link (CAPWAP tunnel 2) as a new primary link, and notify the AC2 to replace the original primary AC (AC1) to become a new primary AC, and continue to provide access service for the AP.
However, in this way, after the main AC fails, the AP needs to wait for the timeout of the CAPWAP tunnel with the main AC (i.e., the AP does not receive the CAPWAP keep-alive message from the main AC within the timeout period) before switching the standby AC to the main AC. The reliability of WLAN networks is also affected due to the long timeout time of the CAPWAP tunnel (typically tens of seconds) which results in long interruptions of user traffic. In addition, the AP needs to maintain the active link and the standby link at the same time, which may occupy a large amount of system resources for the AP and may affect the user service processing efficiency of the AP.
In order to solve the above problems, the present application provides an AP access control method and apparatus, so as to improve reliability of a WLAN network and reduce system resource occupation of an AP.
Referring to fig. 2, a flowchart of an AP access control method according to an exemplary embodiment of the present application is shown, where the method may be applied to the AC shown in fig. 1, and includes the following steps:
step 201: when the role of the equipment in the AC backup group is the main equipment, receiving an association request sent by an AP; wherein the AC backup group is formed by a plurality of ACs based on VRRP, and the association request is constructed by the AP based on a virtual IP address of the AC backup group.
Step 202: and establishing a CAPWAP tunnel with the AP based on the association request.
In this embodiment, a plurality of ACs may form an AC backup group based on VRRP (Virtual Router Redundancy Protocol), so that the AC backup group may be externally presented as a Virtual AC. In the AC backup group, each AC may determine the role of the device in the AC backup group through VRRP role election.
Based on the VRRP role election result in the AC backup group, if the AC determines that the role of the equipment in the AC backup group is a main equipment (main AC), the main AC can process the access request of the AP, and establishes a CAPWAP tunnel with the AP based on the virtual IP address of the AC backup group; if the AC determines that the role of the device in the AC backup group is a standby device (standby AC), the standby AC does not process the access request of the AP.
In this embodiment, when an AP needs to access a WLAN network through a certain virtual AC (AC backup group), an association request may be constructed based on a virtual IP address of the AC backup group, and the association request may be sent to the AC backup group. The main AC in the AC backup group may receive the association request, and after receiving the association request, the main AC may establish a CAPWAP tunnel with the AP based on the association request because a destination IP address of the association request is a virtual IP address of the AC backup group, so that the AP may access the WLAN network through the AC backup group.
In an alternative embodiment, the virtual IP address of the AC backup group may be pre-configured in the AP by the user, so that the AP may directly send the association request to the main AC of the AC backup group in a unicast manner, that is, the AP may directly construct the association request with the destination IP address being the virtual IP address and send the association request to the AC backup group.
On the other hand, when the main AC in the AC backup group receives the association request sent by the AP, it may first determine whether the destination address of the association request is the virtual IP address of the AC backup group. If so, the main AC can establish a CAPWAP tunnel with the AP based on the association request, so that the AP can access the WLAN network through the AC backup group; if not, the host AC may deny the AP's access request, i.e., discard the association request, without establishing a CAPWAP tunnel with the AP.
In another alternative embodiment, if the user does not previously configure the virtual IP address of the AC backup group in the AP, the AP may send the discovery request to all AC backup groups in a broadcast manner. After receiving the discovery request sent by the AP, the main AC in the AC backup groups may construct a discovery response based on the virtual IP address and the load information of the AC backup group to which the device belongs. The load information may include the number of APs in a running state, which are accessed to the WLAN network through the AC backup group, and the number may be self-counted by the main AC in the AC backup group.
It should be noted that, multiple AC backup groups may be configured in the same AC based on VRRP, and roles of the ACs in the multiple AC backup groups may be the same or different. If the AC determines that the device is configured with a plurality of AC backup groups, the AC may first determine whether the role of the device in each AC backup group is a master device. If so, the AC can be used as a main AC, and a discovery response is constructed based on the virtual IP address and the load information of the AC backup group; if not, the AC may act as a backup AC, and the discovery request is not responded to, i.e., discarded. In summary, if the AC determines that a plurality of AC backup groups are configured in the device and the AC has roles in the plurality of AC backup groups that are all master devices, the AC may construct a discovery response, that is, construct a plurality of different discovery responses, based on the virtual IP addresses and the load information of the plurality of AC backup groups, respectively.
For example, assuming that an AC backup group 1, an AC backup group 2, and an AC backup group 3 are configured based on VRRP in an AC, and further assuming that the role of the AC in the AC backup group 1 is a master device, the role in the AC backup group 2 is also a master device, and the role in the AC backup group 3 is a backup device, after receiving a discovery request sent by an AP, the AC may construct a discovery response based on the virtual IP address and the load information of the AC backup group 1, and may also construct a discovery response based on the virtual IP address and the load information of the AC backup group 2, but may not construct a discovery response based on the virtual IP address and the load information of the AC backup group 3.
The primary AC in the AC backup group, after constructing the discovery response, may send the discovery response to the corresponding AP sending the discovery request. After receiving the discovery response sent by each main AC, the AP may acquire load information of each AC backup group, and determine a target AC, that is, a main AC in an AC backup group for accessing the WLAN network, based on the load information. In practical application, after acquiring the load information of each AC backup group, the AP may compare the number of APs that are in an operating state and access the WLAN network through each AC backup group according to the load information, so that the main AC in the AC backup group with the minimum number may be determined as the target AC, that is, the main AC in the AC backup group with the minimum load is determined as the target AC. Subsequently, the AP may send an association request to the target AC in a unicast manner, so as to establish a CAPWAP tunnel with the target AC, so as to access the WLAN network through the AC backup group to which the target AC belongs.
In order to keep the information of the AP stored in the main AC and the standby AC in the AC backup group consistent, the standby AC is conveniently switched to a new main AC when the main AC fails, and continues to provide Access service for the AP, and an IACTP tunnel may be established between the main AC and the standby AC in the AC backup group based on an IACTP (Inter Access Controller Tunneling Protocol). Subsequently, the main AC may save AP information based on the IACTP tunnel, such as: configuration data and operation data of the AP, etc. are synchronized to the standby AC.
In an alternative embodiment, when a primary AC in the AC backup group fails, for example: a Master AC crash, etc., which may detect a Master to Backup message. After detecting the primary-secondary conversion message, the primary AC may close the CAPWAP tunnel established with each AP, and delete the stored information of the primary AC and the AP information.
On the other hand, when the primary AC in the AC Backup group fails, the primary/secondary AC in the AC Backup group may detect a primary/secondary switching message (Backup to Master message). After detecting the primary-secondary conversion message, the secondary AC may establish a CAPWAP tunnel with each AP connected with the primary AC based on the stored AP information, and delete the stored primary AC information.
It should be noted that, in practical applications, when receiving the AP information synchronized by the main AC, the standby AC may simulate, based on the AP information, establishing a CAPWAP tunnel with the corresponding AP, but the CAPWAP tunnel is not discarded when the main AC operates normally. The backup AC can activate the timer simulating the built CAPWAP tunnel when detecting the primary/backup conversion message, thereby directly completing the establishment of the CAPWAP tunnel with the AP.
In another alternative embodiment, if the AC does not turn on the client function, only the main AC in the AC backup group will save the client information in the AP accessing the WLAN network through the AC backup group, and the backup AC will not save the client information. The client information may include configuration data and operation data of all clients connected to the AP. Therefore, when the main AC fails and the standby AC is switched to the main AC, the standby AC may issue a client de-authentication request to all APs accessing the WLAN network through the AC backup set, so that the clients originally connected to the APs are taken off line and establish connection with the corresponding APs again after passing authentication again.
As can be seen from the above embodiments, an AP may access a WLAN network through an AC backup group formed by multiple ACs based on VRRP, a main AC in the AC backup group may provide access service for the AP, and after the main AC fails, a standby AC in the AC backup group may be directly switched to the main AC to continue providing access service for the AP. By adopting the mode, the AP can directly switch the standby AC into the main AC without waiting for the overtime of the CAPWAP tunnel between the AP and the main AC, and the seamless switching of the AP flow can be realized, thereby greatly reducing the interruption time of user service and improving the reliability of the WLAN network. In addition, because the AP only needs to maintain one CAPWAP tunnel all the time, the system resource of the AP can be saved, and the user service processing efficiency of the AP is improved.
Corresponding to the foregoing embodiments of the AP access control method, the present application also provides embodiments of an AP access control apparatus.
The embodiment of the AP access control apparatus can be applied to an AC. The device embodiments may be implemented by software, or by hardware, or by a combination of hardware and software. The software implementation is taken as an example, and is formed by reading corresponding computer program instructions in the nonvolatile memory into the memory for operation through the processor of the device where the software implementation is located as a logical means. In terms of hardware, as shown in fig. 3, a hardware structure diagram of an AC where the AP access control device is located in the present application is shown, except for the processor, the memory, the network interface, and the nonvolatile memory shown in fig. 3, the AC where the device is located in the embodiment may also include other hardware according to the actual function of the AP access control, which is not described again.
Referring to fig. 4, a block diagram of an AP access control device according to an exemplary embodiment of the present application is shown. The apparatus 400 may be applied to the AC shown in fig. 3, including:
a first receiving unit 401, configured to receive, when a role of the device in the AC backup group is a master device, an association request sent by an AP; wherein the AC backup group is formed by a plurality of ACs based on VRRP, the association request is constructed by the AP based on a virtual IP address of the AC backup group;
an establishing unit 402, configured to establish a CAPWAP tunnel with the AP based on the association request.
In an optional embodiment, the apparatus 400 may further include:
a second receiving unit 403, configured to receive, when a role of the device in the AC backup group is a master device, a discovery request broadcasted by the AP;
a constructing unit 404, configured to construct a discovery response based on the virtual IP address and the load information of the AC backup group to which the device belongs;
a sending unit 405, configured to send the discovery response to the AP, so that the AP determines a target AC based on load information in the received discovery response, and sends an association request constructed based on the virtual IP address of the backup group to which the target AC belongs to the target AC.
In another alternative embodiment, the apparatus 400 may further include:
a synchronizing unit 406, configured to synchronize, when the role of the device in the AC backup group is a master device, the stored AP information to the standby device based on an IACTP tunnel established with the standby device in the AC backup group.
In another alternative embodiment, the apparatus 400 may further include:
a first detecting unit 407, configured to, when the role of the device in the AC backup group is a primary device, if a primary/secondary switching message is detected, close the CAPWAP tunnel established with the AP, and delete the stored information of the secondary device and the AP information.
In another alternative embodiment, the apparatus 400 may further include:
a second detecting unit 408, configured to, when the role of the device in the AC backup group is a backup device, if the primary/backup switching message is detected, establish a CAPWAP tunnel with the corresponding AP based on the stored AP information, and delete the stored primary device information.
The implementation process of the functions and actions of each unit in the above device is specifically described in the implementation process of the corresponding step in the above method, and is not described herein again.
For the device embodiments, since they substantially correspond to the method embodiments, reference may be made to the partial description of the method embodiments for relevant points. The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of the application. One of ordinary skill in the art can understand and implement it without inventive effort.
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 (6)

1. An AP access control method, which is applied to an AC, and comprises the following steps:
when the role of the equipment in the AC backup group is the main equipment, receiving an association request sent by an AP; wherein the AC backup group is formed by a plurality of ACs based on VRRP, the association request is constructed by the AP based on a virtual IP address of the AC backup group;
establishing a CAPWAP tunnel with the AP based on the association request;
when the role of the equipment in the AC backup group is the main equipment, if the main-standby switching message is detected, closing a CAPWAP tunnel established with the AP, and deleting the stored information of the main equipment and the AP;
and when the role of the equipment in the AC backup group is the backup equipment, if the primary-backup switching message is detected, establishing a CAPWAP tunnel based on the stored AP information and the corresponding AP, and deleting the stored primary equipment information.
2. The method of claim 1, further comprising:
when the role of the device in the AC backup group is a main device, receiving a discovery request broadcasted by the AP;
constructing a discovery response based on the virtual IP address and the load information of the AC backup group to which the equipment belongs;
and sending the discovery response to the AP, so that the AP determines a target AC based on the load information in the received discovery response, and sending an association request constructed based on the virtual IP address of the backup group to which the target AC belongs to the target AC.
3. The method of claim 1, further comprising:
and when the role of the equipment in the AC backup group is the main equipment, synchronizing the stored AP information to the standby equipment based on the IACTP tunnel established with the standby equipment in the AC backup group.
4. An AP access control apparatus, wherein the apparatus is applied to an AC, and the apparatus comprises:
a first receiving unit, configured to receive, when a role of the device in the AC backup group is a master device, an association request sent by an AP; wherein the AC backup group is formed by a plurality of ACs based on VRRP, the association request is constructed by the AP based on a virtual IP address of the AC backup group;
an establishing unit, configured to establish a CAPWAP tunnel with the AP based on the association request;
a first detecting unit, configured to, when a role of the device in the AC backup group is a master device, if a master-slave switching message is detected, close a CAPWAP tunnel established with the AP, and delete stored backup device information and AP information;
and the second detection unit is used for establishing a CAPWAP tunnel with the corresponding AP based on the stored AP information and deleting the stored main equipment information if the main/standby switching message is detected when the role of the equipment in the AC backup group is the standby equipment.
5. The apparatus of claim 4, further comprising:
a second receiving unit, configured to receive a discovery request broadcast by the AP when a role of the device in the AC backup group is a master device;
the construction unit is used for constructing a discovery response based on the virtual IP address and the load information of the AC backup group to which the equipment belongs;
a sending unit, configured to send the discovery response to the AP, so that the AP determines a target AC based on load information in the received discovery response, and sends an association request constructed based on a virtual IP address of a backup group to which the target AC belongs to the target AC.
6. The apparatus of claim 4, further comprising:
and the synchronizing unit is used for synchronizing the stored AP information to the standby equipment based on an IACTP tunnel established with the standby equipment in the AC backup group when the role of the equipment in the AC backup group is the main equipment.
CN201711476512.5A 2017-12-29 2017-12-29 AP access control method and device Active CN107948002B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711476512.5A CN107948002B (en) 2017-12-29 2017-12-29 AP access control method and device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711476512.5A CN107948002B (en) 2017-12-29 2017-12-29 AP access control method and device

Publications (2)

Publication Number Publication Date
CN107948002A CN107948002A (en) 2018-04-20
CN107948002B true CN107948002B (en) 2021-01-26

Family

ID=61937022

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711476512.5A Active CN107948002B (en) 2017-12-29 2017-12-29 AP access control method and device

Country Status (1)

Country Link
CN (1) CN107948002B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108934035B (en) * 2018-06-26 2020-07-07 新华三技术有限公司 Data backup method and device
CN109561458B (en) * 2018-11-28 2022-05-27 新华三技术有限公司 AC backup method and device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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)
CN101801051A (en) * 2010-03-04 2010-08-11 杭州华三通信技术有限公司 Method and equipment for selecting access points (APs)
CN102625325A (en) * 2012-03-13 2012-08-01 杭州华三通信技术有限公司 Wireless network deployment method and wireless access point
CN103517341A (en) * 2012-06-29 2014-01-15 中国移动通信集团公司 Method, system and device for segmenting flow in wireless local area network
CN103747503A (en) * 2013-12-10 2014-04-23 北京智谷睿拓技术服务有限公司 Wireless network accessing method and accessing apparatus
CN104185196A (en) * 2013-05-20 2014-12-03 中兴通讯股份有限公司 Wireless controller disaster recovery method and system thereof
CN105577444A (en) * 2015-12-30 2016-05-11 迈普通信技术股份有限公司 Wireless controller management method and wireless controller
CN106332182A (en) * 2016-08-11 2017-01-11 杭州华三通信技术有限公司 Wireless access method and apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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)
CN101801051A (en) * 2010-03-04 2010-08-11 杭州华三通信技术有限公司 Method and equipment for selecting access points (APs)
CN102625325A (en) * 2012-03-13 2012-08-01 杭州华三通信技术有限公司 Wireless network deployment method and wireless access point
CN103517341A (en) * 2012-06-29 2014-01-15 中国移动通信集团公司 Method, system and device for segmenting flow in wireless local area network
CN104185196A (en) * 2013-05-20 2014-12-03 中兴通讯股份有限公司 Wireless controller disaster recovery method and system thereof
CN103747503A (en) * 2013-12-10 2014-04-23 北京智谷睿拓技术服务有限公司 Wireless network accessing method and accessing apparatus
CN105577444A (en) * 2015-12-30 2016-05-11 迈普通信技术股份有限公司 Wireless controller management method and wireless controller
CN106332182A (en) * 2016-08-11 2017-01-11 杭州华三通信技术有限公司 Wireless access method and apparatus

Also Published As

Publication number Publication date
CN107948002A (en) 2018-04-20

Similar Documents

Publication Publication Date Title
US10880730B2 (en) Predictive and nomadic roaming of wireless clients across different network subnets
CN110113441B (en) Computer equipment, system and method for realizing load balance
CN106878166B (en) Route notification method and device
CN101583144B (en) Wireless controller service information backup method and equipment
US20080159125A1 (en) Network connection restoration method, AAA server, and radio access network gateway apparatus
JP2010063022A (en) Method of controlling access gateway apparatus, and communicating system
JP6432955B2 (en) Method, apparatus and system for migrating virtual network function instances
KR101909400B1 (en) Method and system for managing network traffic
US20100290358A1 (en) Architecture using inexpensive, managed wireless switching points to deliver large scale wlan
US8824323B2 (en) Wireless control plane failure handling in a split-plane deployment
CN101610533A (en) A kind of method and apparatus of realizing that the access controller backup is switched
CN107948002B (en) AP access control method and device
CN110535947B (en) Storage device cluster configuration node switching method, device and equipment
JP5039975B2 (en) Gateway device
JP7357682B2 (en) Server computer, method for providing an application, mobile communication network, and method for providing access to a server computer
EP4364527A2 (en) Network resilience
CN114157606A (en) Virtual network element equipment switching method, equipment and storage medium
CN110944029B (en) Data backup method, device and communication system
CN117411864A (en) Application migration method, device, equipment and storage medium
CN117641506A (en) Wireless screen-throwing control method, device, equipment and medium based on multilink
JP2017169065A (en) Communication apparatus and control method therefor

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant