CN105025506B - A kind of method of cloud AC remote managements AP equipment - Google Patents
A kind of method of cloud AC remote managements AP equipment Download PDFInfo
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- CN105025506B CN105025506B CN201510483517.5A CN201510483517A CN105025506B CN 105025506 B CN105025506 B CN 105025506B CN 201510483517 A CN201510483517 A CN 201510483517A CN 105025506 B CN105025506 B CN 105025506B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
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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
- H04L41/0806—Configuration setting for initial configuration or provisioning, e.g. plug-and-play
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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
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
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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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/163—In-band adaptation of TCP data exchange; In-band control procedures
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Mobile Radio Communication Systems (AREA)
- Computer And Data Communications (AREA)
Abstract
The present invention provides a kind of method of cloud AC remote managements AP equipment, including step：After the power is turned on, whether the physical port of WAN mouthfuls of local of detection links normally the AP；When physical port link is normal, whether network is reachable according to the domain name of cloud AC described in the local cloud AC address detecteds by the AP；When network up to when, the AP opens local socket；The AP sends TCP connection message to the cloud AC；After the cloud AC receives the TCP connection message, long connection creates successfully.This method is actively initiated to establish TCP long connections by AP, and it is based on HTTP, HTTPS agreement, using XML format management node as the management object of AP, it solves the problems, such as to dispose AC remote managements AP beyond the clouds, it solves the problems, such as AP administrative models, while also solving the safety problem of remote management.
Description
Technical field
The present invention relates to field of communication technology more particularly to a kind of methods of cloud AC remote managements AP equipment.
Background technology
Currently, software defined network and network function virtualization trend based on virtualization technology are more and more clear, it is numerous
Research institution, communication equipment quotient and communications service provider, which begin one's study, is deployed in the network service function remodeling under conventional module
High in the clouds.Such as：Deployment AC (Access Controller, access controller) beyond the clouds, abbreviation cloud AC, high in the clouds are disposed AC and are passed
The difference of system pattern deployment, mainly AP equipment (Access Pointer, access node) need to cross over Internet and AC phases
Even, the main problem solved is needed to be how AP equipment finds AC, and establish connection.
It is also more and more using mobile terminal devices such as mobile phones as wireless coverage is more and more, by WiFi online at
For current main way, traditional wireless network management pattern is passed thoroughly by CAPWAP device protocols tunnel to manage using AC
Manage AP equipment.This management mode needs are being established on CAPWAP device protocols, do not have stronger versatility, scalability
Not enough.
Invention content
In view of the above problems, the application describes a kind of method of cloud AC remote managements AP equipment, the method includes：
Power on operation is carried out to the AP equipment；
The AP equipment opening is simultaneously reachable to network by the physical port of normal WAN mouthfuls of local according to local socket
The cloud AC send TCP connection request；
The cloud AC receives the TCP connection request, to complete the foundation of communication link；The cloud AC passes through the communication
Link obtains the remote address of the AP equipment, and the configuration parameter of AP equipment is issued according to the remote address, with to described
AP equipment carries out remote management；
Wherein, after the AP device powers, whether the physical port for detecting WAN mouthfuls of local is normal；
If the physical port of WAN mouthfuls of the local is normal, the AP equipment sends the TCP connection to the cloud AC and asks
It asks；
Otherwise, terminate.
Preferably, the physical port when WAN mouthfuls of the local becomes normal from abnormal, the processor in the AP equipment
Interruption can be received and restore message, AP equipment described in step is continued to execute and send the TCP connection request to the cloud AC.
Preferably, the method further includes：The AP equipment timing sends heartbeat message to the cloud AC, described in judgement
Whether the communication link of AP equipment and the cloud AC are normal.
Preferably, when the communication link of the AP equipment and the cloud AC disconnect, the physics of WAN mouthfuls of local is detected again
Whether port is normal.
Preferably, the method further includes：Before the AP equipment sends the TCP connection request to the cloud AC, first sentence
Whether network is reachable for the domain name of the disconnected cloud AC；
If the domain name network of the cloud AC is reachable, the AP equipment sends TCP connection request to the cloud AC；
Otherwise, the domain name of the cloud AC is checked continually on until the domain name network of the cloud AC is reachable.
Preferably, after the cloud AC receives the TCP connection request, the cloud AC starts HTTP Server services, beats
9000 ports are opened, the AP equipment starts the HTTP Server foundation connections that HTTP Client pass private network with the cloud AC.
Preferably, the method further includes：When the cloud AC does not receive TCP connection request, the AP equipment after
Continue and sends the TCP connection request to the cloud AC until the cloud AC receives the TCP connection request.
Preferably, the cloud AC issues the configuration parameter by http protocol.
Preferably, the configuration parameter defines the title and occurrence of each field by XML format.
Above-mentioned technical proposal has the following advantages that or advantageous effect：In the method for cloud AC remote management AP equipment, pass through AP
Equipment is actively initiated to establish TCP long connections, and is based on HTTP, HTTPS agreement, using XML format management node as AP equipment
Management object, solve the problems, such as to dispose AC remote management AP equipment beyond the clouds, that is, solve AP equipment management models
Problem, while also solving the safety problem of remote management.
Description of the drawings
With reference to appended attached drawing, more fully to describe the embodiment of the present invention.However, appended attached drawing be merely to illustrate and
It illustrates, and is not meant to limit the scope of the invention.
Fig. 1 is a kind of flow chart of the method for cloud AC remote managements AP equipment of the present invention.
Specific implementation mode
The method of cloud AC remote managements AP equipment of the present invention is described in detail in the following with reference to the drawings and specific embodiments.
Embodiment one
A kind of method of cloud AC remote managements AP equipment, including step：
TCP long connections are established between AP equipment and cloud AC；
Cloud AC issues relevant configuration information to AP equipment.
Specifically, step is established between AP equipment and cloud AC in TCP long connections, since AP equipment is mostly in private network
It is interior, and cloud AC is deployed on Cloud Server, and TCP long is established with the AC for being deployed in public network server by AP equipment by http protocol
Connection.Its medium cloud AC enables HTTP Server services, opens 9000 ports, and then it is thoroughly private to enable HTTP Client biographies for AP equipment
The HTTP Server of net and cloud AC, which are established, to be connected；
Step cloud AC is issued to AP equipment in relevant configuration information, and cloud AC passes through the long connection between AP equipment and cloud AC
Channel issue the device-dependent configuration parameters of AP, the configuration parameter includes AP device parameters, remote maintenance information etc..
Further include that step AP equipment timings are sent to cloud AC in step cloud AC issues relevant configuration information to AP equipment
Heartbeat message, the connection for ensureing TCP long connections is normal, at the same cloud AC by heartbeat message come determine AP equipment in threadiness
State.
Wherein, due to cloud AC and AP equipment establish be the TCP connection based on http protocol, it is described with parameter use
XML format is handed down to AP equipment by http protocol.In addition, though although http protocol solves the problems, such as that private network biography is saturating, but its
Using plaintext message, therefore in order to improve the safety that cloud AC is connect with AP equipment managements, using HTTPS cryptographic protocols, to
Management passage is established therebetween.
In the method for cloud AC remote management AP equipment, actively initiate to establish TCP long connections by AP equipment, and be based on
It is remote to solve the AC of deployment beyond the clouds using XML format management node as the management object of AP equipment for HTTP, HTTPS agreement
The problem of thread management AP equipment, solves the problems, such as AP equipment management models, while the safety for also solving remote management is asked
Topic.
Embodiment two
Method based on the cloud AC remote management AP equipment that embodiment one proposes, the present embodiment carry out further this method
Explanation.
S1：After AP device powers, whether the physical port of WAN mouthfuls of local of AP equipment detection links normally, if not just
Often, S11 is executed, otherwise, executes S2；
S11：Whether the physical port of WAN mouthfuls of local of detection restores normal, if so, executing S2, otherwise, executes S1；
S2：AP equipment is according to the local addresses cloud AC, and detecting the domain name of the cloud AC, whether network is reachable, if can not
It reaches, executes S12, otherwise, execute S3；Wherein, the local addresses cloud AC refer to the cloud AC domain names that manufacture has configured；
S12：After waiting for a period of time, continue to detect the domain name of the cloud AC again whether network is reachable, i.e. a period of time
Afterwards, step S3 is continued to execute；Wherein, described a period of time can be 3 minutes；
S3：AP equipment opens local socket；
S4：AP equipment sends TCP connection request, the port of connection cloud AC to cloud AC；Wherein, the port is 9000 ends
Mouthful；
S5：Judge whether cloud AC receives the TCP connection request and execute S13 if do not received, otherwise, executes S6；
S13：After waiting for a period of time, AP equipment continues to ask and attempt connection cloud AC's to cloud AC transmissions TCP connection
9000 ports that is, after a period of time, continue to execute step S5；Wherein, described a period of time can be 10 seconds；
S6：Cloud AC receives request, and long connection creates successfully；
S7：AP equipment opens timer, periodically sends heartbeat message to cloud AC；The heartbeat message is using Keep
The message that Alive mechanism is sent, AP equipment send a heartbeat message in every 30 seconds to cloud AC；
S8：Judge whether cloud AC sends and be properly received the heartbeat message, if so, executing S9, otherwise, return to step
S1；
S9：Cloud AC issues the configuration parameter of AP equipment by http protocol, wherein the configuration parameter passes through XML format
Define the title and occurrence of each field.
Generally speaking, after AP device powers start, AP equipment starts actively to initiate TCP connection to cloud AC.In this mistake
Cheng Zhong, AP equipment will first detect whether local WAN mouthfuls of physical port links normally.If the physical port of local WAN links
Abnormal, then AP equipment is abandoned sending TCP connection request to cloud AC, and the continuous link of local WAN physical ports that determines is
No recovery；Otherwise, whether AP equipment detection cloud AC domain names are reachable；Wherein, when the connection of the physical port of local WAN restores normal
When, whether the processor in AP equipment can receive interruption and restore message, continue to execute step AP equipment detection cloud AC domain names and may be used
It reaches.Wherein, the interruption restore message refer to when the link of physical port from it is abnormal become normal when physical port send out
Message.
AP equipment is according to the local addresses cloud AC, and detecting the domain name of the cloud AC, whether network is reachable；Wherein, local cloud
The addresses AC refer to the cloud AC domain names that manufacture has configured.
If network is reachable, AP equipment opens local socket and sends TCP connection information to cloud AC；The port of connection is
9000 ports.If network is unreachable, AP equipment continues to detect the domain name of the cloud AC, until network up to until.
After the TCP connection request that AP equipment is sent to cloud AC is agreed to by cloud AC, the long connection between cloud AC and AP equipment
It creates successfully；If TCP connection request is not received by cloud AC, after a period of time, AP equipment again attempts to connection cloud AC's
9000 ports, until cloud AC receives the TCP connection request.Specifically, it is asked when the cloud AC receives the TCP connection
After asking, the cloud AC starts HTTP Server services, opens 9000 ports, then the AP equipment starts HTTP Client and passes
The HTTP Server of saturating private network and the cloud AC, which are established, to be connected..
After establishing long connection between AP equipment and cloud AC, in order to prevent since AP equipment is for a long time without upper line number
According to TCP connection supermarket is caused, cloud AC is made actively to disconnect TCP connection, AP equipment needs timing to send Keep Alive's to cloud AC
Heartbeat message.Both simultaneously, it is also necessary to whether the heartbeat message cloud AC detected each time receives, if had received, illustrate
Connection is normal；Otherwise, illustrate that the two malunion is normal, then just needing execution step WAN mouthfuls of connections of detection whether normal, again
Establish the connection relation of the two.
It should be noted that after successfully establishing long connection between AP equipment and cloud AC, cloud AC has been known that AP is set
Standby remote address issues the configuration parameter of AP equipment by http protocol.Wherein, the configuration parameter is fixed by XML format
The title and occurrence of each adopted field.Although http protocol solves the problems, such as that private network passes, plaintext message, therefore
In order to improve the safety that cloud AC is connect with AP equipment managements, established between AP equipment and cloud AC using HTTPS cryptographic protocols
Management passage.
The method for realizing the cloud AC remote management AP equipment using HTTP/HTTPS agreements by the method, using XML
The management node of format solves the administrative model of AP equipment, using the safety of HTTPS protocol enhancements, to realize cloud AC pipes
Manage the Managed Solution of private network AP equipment.
For a person skilled in the art, after reading above description, various changes and modifications undoubtedly will be evident.
Therefore, appended claims should regard the whole variations and modifications for covering the true intention and range of the present invention as.It is weighing
The range and content of any and all equivalences within the scope of sharp claim, are all considered as still belonging to the intent and scope of the invention.
Claims (7)
1. a kind of method of cloud AC remote managements AP equipment, which is characterized in that the method includes：
Power on operation is carried out to the AP equipment；
The AP equipment open and according to local socket by the physical port of normal WAN mouthfuls of local to the reachable institute of network
It states cloud AC and sends TCP connection request；
The cloud AC receives the TCP connection request, to complete the foundation of communication link；The cloud AC passes through the communication link
The remote address of the AP is obtained, and issues the configuration parameter of AP according to the remote address, it is remote to be carried out to the AP equipment
Thread management；
Wherein, after the AP device powers, whether the physical port for detecting WAN mouthfuls of local is normal；
If the physical port of WAN mouthfuls of the local is normal, the AP equipment sends the TCP connection request to the cloud AC；
Otherwise, terminate；
The cloud AC issues the configuration parameter by HTTPS agreements；
The configuration parameter defines the title and occurrence of each field by XML format.
2. the method for cloud AC remote managements AP equipment according to claim 1, which is characterized in that when WAN mouthfuls of the local
Physical port become normal from abnormal, the processor in the AP equipment receive interruption restore message after, the AP is set
It is standby to send the TCP connection request to the cloud AC.
3. the method for cloud AC remote managements AP equipment according to claim 1, which is characterized in that the method further includes：
AP equipment timing sends heartbeat message to the cloud AC, with judge the AP equipment and the cloud AC communication link whether
Normally.
4. the method for cloud AC remote managements AP equipment according to claim 3, which is characterized in that when the AP equipment and institute
When stating the communication link disconnection of cloud AC, whether the physical port for detecting WAN mouthfuls of local again is normal.
5. the method for cloud AC remote managements AP equipment according to claim 1, which is characterized in that the method further includes：
Before the AP equipment sends TCP connection request to the cloud AC, first judging the domain name of the cloud AC, whether network is reachable；
If the domain name network of the cloud AC is reachable, the AP equipment sends TCP connection request to the cloud AC；Otherwise, constantly
The domain name of the cloud AC is checked until the domain name network of the cloud AC is reachable.
6. the method for cloud AC remote managements AP equipment according to claim 1, which is characterized in that when the cloud AC receives institute
After stating TCP connection request, the cloud AC starts HTTPServer services, opens 9000 ports, and the AP equipment starts
The HTTPServer that HTTPClient passes private network and the cloud AC establishes connection.
7. the method for cloud AC remote managements AP equipment according to claim 6, which is characterized in that the method further includes：
When the cloud AC does not receive the TCP connection request, the AP equipment continues to send the TCP connection request to the cloud AC
Until the cloud AC receives the TCP connection request.
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| CN201510483517.5A CN105025506B (en) | 2015-08-07 | 2015-08-07 | A kind of method of cloud AC remote managements AP equipment |
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Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106454891A (en) * | 2016-05-05 | 2017-02-22 | 湖北爱尔特云电子技术有限公司 | Wireless local area network remote supervision method |
| CN105848131A (en) * | 2016-05-09 | 2016-08-10 | 厦门四信通信科技有限公司 | Method for realizing STA cross-domain roaming through cloud AC |
| CN106102101A (en) * | 2016-08-25 | 2016-11-09 | 上海斐讯数据通信技术有限公司 | Processing method that a kind of WAP is connected with Radio Access Controller and system |
| CN106993302A (en) * | 2017-03-28 | 2017-07-28 | 上海斐讯数据通信技术有限公司 | A kind of method of testing and system of AP equipment |
| CN107483558B (en) * | 2017-07-27 | 2021-05-28 | 浩鲸云计算科技股份有限公司 | Method for AP configuration management and wireless terminal access control of cloud platform |
| CN111884938B (en) * | 2020-06-30 | 2022-12-30 | 海尔优家智能科技（北京）有限公司 | Router information acquisition method and device |
| CN114143904B (en) * | 2022-01-12 | 2024-01-23 | 重庆邮电大学 | CPE management method based on 5G fusion network shunt |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102281651A (en) * | 2011-07-20 | 2011-12-14 | 深圳市高新奇科技股份有限公司 | Wireless data communication exchanger for a group, and use method and applications thereof |
| CN103607718A (en) * | 2013-11-11 | 2014-02-26 | 立昂技术股份有限公司 | Intelligent wireless network communication optimization device |
| CN103701895A (en) * | 2013-12-24 | 2014-04-02 | 深圳市共进电子股份有限公司 | Method for remotely controlling terminal gateway equipment |
-
2015
- 2015-08-07 CN CN201510483517.5A patent/CN105025506B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102281651A (en) * | 2011-07-20 | 2011-12-14 | 深圳市高新奇科技股份有限公司 | Wireless data communication exchanger for a group, and use method and applications thereof |
| CN103607718A (en) * | 2013-11-11 | 2014-02-26 | 立昂技术股份有限公司 | Intelligent wireless network communication optimization device |
| CN103701895A (en) * | 2013-12-24 | 2014-04-02 | 深圳市共进电子股份有限公司 | Method for remotely controlling terminal gateway equipment |
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