CN108124280A - Monitoring and diagnosis system and network monitoring diagnostic method - Google Patents

Abstract

The present invention provides a monitoring and diagnosing system and a network monitoring and diagnosing method. The system includes a wireless access point AP, a terminal device and a server that communicate with each other, wherein the AP or the terminal device includes a detection agent module, and the server includes a detection service module. The detection agent module is used to simulate the online behavior of the client, and report the network measurement data collected during the online process to the detection service module. The detection service module is used for analyzing the network measurement data and diagnosing the communication link. Therefore, by simulating the online behavior of the client, the detection agent module can actively collect network measurement data and report it to the detection service module for analysis and diagnosis during the online process. The collected network measurement data has a wider range and covers more information content, which is convenient for the detection service module to perform remote analysis and diagnosis, can effectively improve the performance of remotely solving network problems, and reduce the visit rate of professional and technical personnel.

Description

Monitoring and diagnosis system and network monitoring and diagnosis method

technical field

The invention relates to the technical field of wireless communication, in particular to a monitoring and diagnosis system and a network monitoring and diagnosis method.

Background technique

At present, the mainstream wireless networking method is AC (Access Controller, access controller) + AP (Access Point, wireless access point), or for small application scenarios, the networking method of AP + cloud AC is adopted.

Since the AP is the wireless device closest to the terminal device, once an abnormality occurs in the network, the terminal user will always complain that the problem is the AP. In order to facilitate the analysis and diagnosis of these problems, each wireless device provider usually collects statistical information by expanding NMS (Network Management System, network management system) or using a dedicated server to collect information on each wireless device, and analyzes the statistical information. Find a solution to the problem.

In the prior art, passive information collection is usually used to collect statistical information. Usually, a statistical module is added to the AP or AC. During the process of users surfing the Internet, the statistical module monitors user traffic, collects relevant measurement data, and The measurement data is reported to the server for analysis and diagnosis.

The disadvantage of the existing technology is that the measurement data can only be collected passively, and the range of information acquisition is limited. When the server cannot solve the problem after remote analysis and diagnosis, it is necessary to rely on professional technicians to go to the user's site for testing and analysis to determine the network problem, which requires high labor costs.

Contents of the invention

Embodiments of the present invention provide a monitoring and diagnosing system and a network monitoring and diagnosing method.

In the first aspect, an embodiment of the present invention provides a monitoring and diagnosis system, the system includes a wireless access point AP, a terminal device, and a server that communicate with each other, wherein the AP or the terminal device includes a detection agent module, and the server includes detection service module;

The detecting agent module is used to simulate the online behavior of the client, and report the network measurement data collected during the online process to the detecting service module;

The detection service module is used for analyzing the network measurement data and diagnosing the communication link.

In the second aspect, an embodiment of the present invention provides a method for network monitoring and diagnosis, the method is applied to an AP or a terminal device including a detection agent module, and the AP and/or terminal device are communicatively connected to a server including a detection service module, so The methods described include:

The detection agent module simulates the online access behavior of the client, and completes the online access by interacting with the detection service module and the AP;

When the online access is successful, the detection agent module simulates the online communication behavior of the client, collects and reports network measurement data to the detection service module during the data communication process, so that the detection service module is based on the network measurement The data is analyzed and diagnosed on the communication link.

In a third aspect, an embodiment of the present invention provides a method for network monitoring and diagnosis, and the method is applied to the above-mentioned monitoring and diagnosis system, wherein the AP or terminal device includes a detection agent module, the server includes a detection service module, and the AP and terminal device and the server communicate with each other, and the method includes:

The detection service module sends a control instruction, and the detection proxy module simulates the online access behavior of the client based on the control instruction, and completes the online access by interacting with the detection service module and the AP;

When the online access is successful, the detection service module sends a data message, and the detection agent module simulates the online communication behavior of the client based on the data message, and collects and reports the network measurement data to the network during the data communication process. The detection service module described above;

The detection service module analyzes and diagnoses the communication link based on the network measurement data.

Compared with the prior art, the present invention has the following beneficial effects:

An embodiment of the present invention is a monitoring and diagnosing system and a network monitoring and diagnosing method. The system includes a wireless access point AP, a terminal device and a server that communicate with each other, wherein the AP or the terminal device includes a detection agent module, and the server includes Probe service module. The detecting agent module is used to simulate the online behavior of the client, and report the network measurement data collected during the online process to the detecting service module. The detection service module is used for analyzing the network measurement data and diagnosing the communication link. Thus, by simulating the online behavior of the client, the detection proxy module can actively collect network measurement data and report it to the detection service module for analysis and diagnosis during the online process. The collected network measurement data has a wider range and covers more information content, which is convenient for the detection service module to perform remote analysis and diagnosis, can effectively improve the performance of remotely solving network problems, and reduce the visit rate of professional and technical personnel.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

Fig. 1 is a schematic block diagram of a monitoring and diagnosing system provided by an embodiment of the present invention.

Fig. 2 is a schematic diagram of a channel between a detection agent module and a detection service module provided by an embodiment of the present invention.

Fig. 3 is a flow chart of the steps of the network monitoring and diagnosing method provided by the first embodiment of the present invention.

FIG. 4 is a schematic flowchart of the sub-steps of step S110 in FIG. 3 provided by the first embodiment of the present invention.

FIG. 5 is a schematic flowchart of substeps of substep S111 in FIG. 4 provided by the first embodiment of the present invention.

FIG. 6 is a schematic flowchart of sub-steps of sub-step S112 in FIG. 4 provided by the first embodiment of the present invention.

FIG. 7 is a schematic flowchart of substeps of substep S113 in FIG. 4 provided by the first embodiment of the present invention.

FIG. 8 is a schematic flowchart of the sub-steps of step S120 in FIG. 3 provided by the first embodiment of the present invention.

Fig. 9 is a flow chart of the steps of the network monitoring and diagnosing method provided by the second embodiment of the present invention.

Icons: 10-monitoring and diagnosis system; 20-detection agent module; 30-detection service module; 100-AP; 200-terminal equipment; 300-server; 400-AC.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. The components of the embodiments of the invention generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the process of realizing the technical solutions provided by the embodiments of the present application, the inventors of the present application found that in the prior art, it is difficult to perform network diagnosis on a specific AP or a specific terminal device in the current way of passively collecting data information. Especially for wireless networks, due to factors such as surrounding wireless interference and differences in different types of terminal equipment, it is difficult to diagnose network problems through passive collection and statistics.

On the other hand, the way of passively collecting data information depends on the user's online status. When the user's terminal device is offline, it is difficult to collect measurement data for analysis and diagnosis. Moreover, due to the complexity of the wireless network, in most cases, it is difficult to solve the actual network problems by passively collecting data information. Usually, it is necessary to rely on professional technicians to go to the user's site for actual positioning, and to actively construct message test Analyzing and determining network problems using other methods requires high labor costs.

The defects in the solutions in the above prior art are all the results obtained by the inventor after practice and careful research. Therefore, the discovery process of the above problems and the solutions to the above problems proposed by the embodiments of the present invention below , should be the inventor's contribution to the invention during the process of the invention.

In order to alleviate the above problems, an embodiment of the present invention provides a monitoring and diagnosing system and a network monitoring and diagnosing method. The monitoring and diagnosing system and network monitoring and diagnosing method provided by the present invention will be described below through the following embodiments.

An embodiment of the present invention provides a monitoring and diagnosis system 10 . Please refer to FIG. 1 . FIG. 1 is a schematic block diagram of a monitoring and diagnosing system 10 provided by an embodiment of the present invention. The monitoring and diagnosis system 10 includes: an AP 100 , a terminal device 200 , an AC 400 , and a server 300 connected by communication. Wherein, the number of AP100, terminal equipment 200, AC400 and server 300 configured in the monitoring and diagnosing system 10 can be set according to actual needs.

In this embodiment, the AP 100 or the terminal device 200 runs a detection agent module 20 , and the server 300 runs a detection service module 30 . The probing agent module 20 is used to simulate the online behavior of the client, and report the network measurement data collected during the surfing process to the probing service module 30 . The detection service module 30 is used for analyzing the network measurement data and diagnosing the communication link.

In this embodiment, the deployment manner of the detection proxy module 20 includes, but is not limited to, independent deployment on the terminal device 200 , or extended deployment on the AP 100 .

In this embodiment, the detection proxy module 20 can be independently deployed on the terminal device 200 (for example, a smart phone, a PC, etc.) as a wireless measurement product. In addition, the detection agent module 20 can also be independently deployed on a separate mobile device (eg, a mobile robot). For example, in a home wireless network application scenario, the detection agent module 20 can be set on a mobile robot as a detection device, and the mobile robot needs to access a wireless network. As the mobile robot moves dynamically, the detection agent module 20 It can simulate the online behavior of the client and actively collect network measurement data.

In this embodiment, the probing agent module 20 can also perform extended deployment for function upgrade based on the AP 100 in the live network. For example, the physical AP 100 of an entity can virtualize multiple virtual APs, and this solution can extend the functions of some virtual APs, and expand and deploy these virtual APs as the detection agent module 20 . Among them, the extended deployment method is preferred, and no additional cost investment or additional manual intervention is required on the user side, which is convenient for maintenance.

In this embodiment, the existing interaction mode can be maintained between the AP 100 and the AC 400 , and the detection agent module 20 can be used as a configuration of the AP 100 to be delivered by the AC 400 .

In this embodiment, the deployment manner of the detection service module 30 may include, but is not limited to, being independently deployed on the server 300 as an independent system, or being integrated and deployed on the server 300 as a system module.

In this embodiment, the carrier of the detection service module 30 may be a separate server 300, and the detection service module 30 may be independently deployed on the server 300 as an independent system.

In this embodiment, this solution may also adopt docker (an open source application container engine) technology, and integrate and deploy the detection service module 30 as a sub-module in an existing computing system into the computing system. Among them, the docker-based integrated deployment method is preferred, which can reflect the idea of modularization, does not require additional hardware costs, and is easy to operate. In addition, the service layer can be extended without software upgrade on the AP100 side.

In this embodiment, the probing service module 30 has all the functions of managing wireless clients, and is convenient for integrating testing tools. The main functions include: authentication functions, such as WPA/WPA2 (Wi-Fi Protected Access, protecting the wireless computer network security system) authentication, Dot1x (the abbreviation of IEEE 802.1X, an access control and authentication protocol based on Client/Server) authentication, etc. . Address acquisition function, for example, DHCP (Dynamic Host Configuration Protocol, Dynamic Host Configuration Protocol) client. Network testing tools, such as IPERF (a network performance testing tool that can test the maximum TCP and UDP bandwidth performance, has a variety of parameters and UDP characteristics, can be adjusted according to needs, and can report information such as bandwidth, delay jitter, and packet loss ), WGET (a free tool that supports automatic downloading of files from the Internet), etc. The detection service module 30 has a unified database interface externally, and can store the data results of detection and diagnosis.

Please refer to FIG. 2 . FIG. 2 is a schematic diagram of a channel between the detection agent module 20 and the detection service module 30 provided by the embodiment of the present invention. Two independent interaction channels may be set between the detection proxy module 20 and the detection service module 30 . One is a control channel for controlling information interaction, and the detection service module 30 and the detection agent module 20 perform interactive transmission of control information through the control channel; the other is a data channel for business data forwarding, the The detection service module 30 and the detection proxy module 20 perform interactive transmission of data packets through the data channel.

In this embodiment, the control channel may adopt, but is not limited to, a user-defined control channel established by a user, or one established based on CAPWAP (Control And Provisioning of Wireless Access Points Protocol Specification, wireless access point control and configuration protocol) technology. control channel, etc. The data channel may adopt, but is not limited to, a stateless tunnel (for example, Ether IP/GRE), a CAPWAP-based data channel, and the like.

In this embodiment, the channel construction ideas of the detection proxy module 20 and the detection service module 30 are similar to the AC+AP mode. The detection service module 30 issues control instructions through the control channel, and the business data is reported to the detection service module 30 through the data channel for further processing. deal with.

In this embodiment, the detection agent module 20 provided by this solution can actively collect network measurement data and report it to the detection service module 30 for analysis and diagnosis by simulating the online behavior of the client. The collected network measurement data has a wider range and covers more information content, which is convenient for the detection service module 30 to perform remote analysis and diagnosis, can effectively improve the performance of remote network problem solving, and reduce the visit rate of professional technicians. Moreover, due to the active collection and reporting method, this solution can perform network diagnosis on a specific AP 100 or a specific terminal device 200 without being affected by factors such as surrounding wireless interference and differences in different types of terminal devices 200 .

first embodiment

The embodiment of the present invention also provides a network monitoring and diagnosis method. Please refer to FIG. 3 . FIG. 3 is a flow chart of the steps of the network monitoring and diagnosing method provided by the first embodiment of the present invention. The method is applied to the AP 100 or the terminal device 200 including the detection proxy module 20 , and the AP 100 and/or the terminal device 200 are communicatively connected to the server 300 including the detection service module 30 . The specific flow of the network monitoring and diagnosis method will be described in detail below.

Step S110 , the detection agent module 20 simulates the online access behavior of the client, and completes the online access by interacting with the detection service module 30 and the AP 100 .

Please refer to FIG. 4 , which is a schematic flowchart of the sub-steps of step S110 in FIG. 3 provided by the first embodiment of the present invention. The step S110 may include sub-step S111, sub-step S112, sub-step S113 and sub-step S114.

In sub-step S111 , the detection agent module 20 receives the detection instruction issued by the detection service module 30 , obtains scanning information from the AP 100 and reports it to the detection service module 30 .

Please refer to FIG. 5 , which is a schematic flowchart of the sub-steps of sub-step S111 in FIG. 4 provided by the first embodiment of the present invention. The sub-step S111 may include sub-step S1110, sub-step S1112 and sub-step S1114.

S1110, the detection agent module 20 receives the detection instruction issued by the detection service module 30 through the control channel.

In this embodiment, a control channel is set between the detection service module 30 and the detection proxy module 20 . The probing service module 30 issues a probing command (for example, PROBE command) through the control channel, and the probing proxy module 20 receives the probing command issued by the probing service module 30 through the control channel.

S1112, the detection proxy module 20 generates a scanning notification message for notifying the AP 100 to perform channel scanning according to the detection instruction, and sends the scanning notification message to the AP 100, so that the AP 100 performs channel scanning.

In this embodiment, the detection proxy module 20 generates a scanning notification message for notifying the AP driver module in the AP 100 to perform channel scanning according to the detection instruction, and sends the scanning notification message to the AP driver module. The AP driver module performs channel scanning after receiving the scanning notification message.

In this embodiment, the AP driver module belongs to a kernel mode module, which is a module close to hardware in the AP 100, and is used for driving processing such as wireless access.

S1114, the detection proxy module 20 receives the scanning information reported by the AP 100 , and reports the scanning information to the detection service module 30 .

In this embodiment, the AP driver module may report the scanning information to the detection proxy module 20 when the channel scanning ends. The detection proxy module 20 then reports the scanning information to the detection service module 30 . Wherein, the scan information may include, but is not limited to, available channels, BSSID (Basic Service Set Identifier, a special Ad-hoc LAN application), SSID (Service Set Identifier, service set identifier), authentication mode ( For example, PSK (pre-shared key, pre-shared key mode) account password authentication method) and other information.

In this embodiment, the BSSID has a unique identification function, and is an ID broadcast by a station in the network, for example, the MAC address of the station. SSID technology can divide a wireless local area network into several sub-networks that require different authentications. Each sub-network requires independent authentication, and only authenticated users can enter the corresponding sub-network. In a popular sense, SSID is the name of a local area network, and only network devices set to the same SSID value can communicate with each other.

In this embodiment, the detection service module 30 may select a network device (for example, AP100, terminal device 200, etc.) that needs to be monitored and diagnosed based on the scanning information reported by the detection agent module 20 through the BSSID identifier.

In sub-step S112 , the detection agent module 20 receives the association instruction issued by the detection service module 30 , obtains the association result from the AP 100 and reports it to the detection service module 30 .

Please refer to FIG. 6 , which is a schematic flowchart of the sub-steps of sub-step S112 in FIG. 4 provided by the first embodiment of the present invention. The sub-step S112 may include sub-step S1120, sub-step S1122 and sub-step S1124.

In sub-step S1120, the detection agent module 20 receives the association instruction issued by the detection service module 30 through the control channel.

In this embodiment, after the detection service module 30 selects the network device that needs to be monitored and diagnosed, it can issue an association instruction (for example, an ASSOCIATION instruction) to the detection agent module 20 in the network device through the control channel. The detecting agent module 20 receives the association instruction through the control channel.

Sub-step S1122, the probing agent module 20 generates an association notification message for notifying the AP100 to perform wireless association according to the association instruction, and sends the association notification message to the AP100, so that the AP100 performs wireless association. associated.

In this embodiment, the probing agent module 20 generates an association notification message for notifying the AP driver module of the AP 100 to perform wireless association according to the association instruction, and sends the association notification message to the AP driver module After receiving the association notification message, the AP driver module performs wireless association processing.

In sub-step S1124 , the detection proxy module 20 receives the association result reported by the AP 100 , and reports the association result to the detection service module 30 .

In this embodiment, when the wireless association ends, the AP driver module can report the association result to the detection agent module 20, and the detection agent module 20 then reports the association result to the detection service module 30 . Wherein, the association result includes association success or association failure.

In this embodiment, when the association fails, the detection service module 30 may re-send an association instruction, so that the AP driver module performs wireless association processing again.

Sub-step S113 , when the association result is successful, the probing agent module 20 receives the authentication instruction issued by the probing service module 30 , obtains the authentication result from the AP 100 and reports it to the probing service module 30 .

Please refer to FIG. 7 , which is a schematic flowchart of the sub-steps of sub-step S113 in FIG. 4 provided by the first embodiment of the present invention. The sub-step S113 may include sub-step S1130, sub-step S1132 and sub-step S1134.

In sub-step S1130, the detection agent module 20 receives the authentication instruction issued by the detection service module 30 through the control channel.

Sub-step S1132, the probing agent module 20 generates an authentication notification message for notifying the AP100 to perform identity authentication according to the authentication instruction, and sends the authentication notification message to the AP100, so that the AP100 performs identity authentication. certified.

Sub-step S1134 , the probing agent module 20 receives the authentication result reported by the AP 100 , and reports the authentication result to the probing service module 30 .

In this embodiment, the authentication process is similar to the above-mentioned association process in FIG. 6 , and will not be repeated here. Wherein, the authentication method may include, but not limited to: WPA, WAP2-PSK, WAP2, etc.

Sub-step S114, when the authentication result is that the authentication is passed, the probing agent module 20 receives the key issued by the probing service module 30, and issues the key to the AP100, so that the AP100 performs The key is installed and the online access is completed.

In this embodiment, when the authentication is passed, the detection agent module 20 receives the key delivered by the detection service module 30 through the control channel, and sends the key to the AP driver module of the AP100, The AP driver module performs key installation to complete the online access process.

Please refer to FIG. 3 again, the method further includes: Step S120.

Step S120, when the online access is successful, the detection agent module 20 simulates the online communication behavior of the client, collects and reports network measurement data to the detection service module 30 during the data communication process, so that the detection service module 30 Analyzing and diagnosing the communication link based on the network measurement data.

Please refer to FIG. 8 , which is a schematic flowchart of the sub-steps of step S120 in FIG. 3 provided by the first embodiment of the present invention. The step S120 may include sub-step S121, sub-step S122, sub-step S123 and sub-step S124.

In sub-step S121, the detection agent module 20 receives the data message sent by the detection service module 30 through the data channel, and decapsulates the data message.

In this embodiment, after the online authentication process of the simulated client by the detection agent module 20 is completed, the detection service module 30 may send a data message through the data channel, and the detection agent module 20 receives the data through the data channel message.

In this embodiment, after receiving the data packet, the detecting agent module 20 may perform tunnel decapsulation processing on the data packet. Wherein, the data message includes a message instruction for collecting air interface information, and the detection proxy module 20 can obtain the message instruction for collecting air interface information after decapsulating the data message, so as to actively collect network measurements during the Internet access process. data.

In sub-step S122, the detection proxy module 20 sends the decapsulated data packet to the AP100.

In this embodiment, the detection proxy module 20 sends the decapsulated data packet to the AP driver module of the AP 100 .

In sub-step S123, the detection agent module 20 receives the response message carrying the network measurement data reported by the AP 100, and encapsulates the response message.

In this embodiment, the AP driver module processes the data message, and actively collects the network measurement data in the process of surfing the Internet when learning the message instruction for collecting air interface information, and will carry the network measurement data The response message is reported to the detection proxy module 20, and the detection proxy module 20 receives the response message and performs tunnel encapsulation processing on the response message. Wherein, the network measurement data carried in the response message refers to data information collected during a normal surfing process (for example, browsing a webpage, opening a network application, etc.).

In sub-step S124 , the detection agent module 20 reports the encapsulated response message to the detection service module 30 .

In this embodiment, after the detection service module 30 receives the response message, it can analyze the response message, and the detection service module 30 can perform statistics, analysis and other processing on the network measurement data, to diagnose the communication link.

In this embodiment, this solution simulates the client's online access behavior and online communication behavior through the detection agent module 20, and can actively collect network measurement data and report it to the detection service module 30 for analysis and diagnosis during the Internet access process. The collected network measurement data has a wider range and more content, which can effectively improve the performance of the detection service module 30 in remotely handling network problems, reduce the visit rate of professional technicians, and reduce manual processing costs. Moreover, due to the active collection and reporting method, network diagnosis can be performed on a specific AP 100 or a specific terminal device 200 without being affected by factors such as surrounding wireless interference and differences in different types of terminal devices 200 .

second embodiment

Please refer to FIG. 9 . FIG. 9 is a flow chart of the steps of the network monitoring and diagnosis method provided by the second embodiment of the present invention. The method is applied to the above-mentioned monitoring and diagnosis system 10, wherein the AP 100 or the terminal device 200 includes the detection agent module 20, the server 300 includes the detection service module 30, and the AP 100, the terminal device 200 and the server 300 are connected by communication.

Step S210, the detection service module 30 issues a control command, and the detection agent module 20 simulates the online access behavior of the client based on the control command, and completes the online access by interacting with the detection service module 30 and the AP100 .

Step S220, when the online access is successful, the detection service module 30 sends a data message, and the detection agent module 20 simulates the online communication behavior of the client based on the data message, and collects and reports the data message during the data communication process. The network measurement data is sent to the detection service module 30 .

In this embodiment, the control instruction may include, but not limited to, a detection instruction, an association instruction, an authentication instruction, and the like. The description of step S210 and step S220 may refer to the description of step S110 and step S120 in the first embodiment above.

Step S230, the detection service module 30 analyzes and diagnoses the communication link based on the network measurement data.

In this embodiment, the detection service module 30 can perform statistics, analysis and processing on the network measurement data reported by the detection proxy module 20, and call network testing tools to test network functions and performance, and diagnose communication links .

In this embodiment, the detection service module 30 can call the network test tool to test the network function and performance by analyzing the test script set by the user administrator, and save the execution result of the network test tool in in the database. The detection service module 30 can also return the execution result to the user.

In this embodiment, the network testing tool may include, but not limited to, WPA, DHCP (Dynamic Host Configuration Protocol, Dynamic Host Configuration Protocol), ICMP (Internet Control Message Protocol, Internet Control Message Protocol), DNS Python Process, Web service, Traceroute (a tool used to detect the number of gateways passed between the host sending the data packet and the target host), other tools, etc.

To sum up, the embodiment of the present invention is a monitoring and diagnosis system and a network monitoring and diagnosis method. The system includes a wireless access point AP, a terminal device and a server communicating with each other, wherein the AP or the terminal device includes a detection agent module , the server includes a detection service module. The detecting agent module is used to simulate the online behavior of the client, and report the network measurement data collected during the online process to the detecting service module. The detection service module is used for analyzing the network measurement data and diagnosing the communication link.

Therefore, the detection proxy module provided by this solution can actively collect network measurement data and report it to the detection service module for analysis and diagnosis by simulating the online behavior of the client. The collected network measurement data has a wider range and covers more information content, which is convenient for the detection service module to perform remote analysis and diagnosis, can effectively improve the performance of remotely solving network problems, and reduce the visit rate of professional and technical personnel.

Moreover, due to the active collection and reporting method, this solution can perform network diagnosis on specific APs or specific terminal devices, without being affected by factors such as surrounding wireless interference and differences between different types of terminal devices.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A monitoring and diagnosis system, characterized in that, the system includes a wireless access point AP, a terminal device and a server connected by mutual communication, wherein the AP or the terminal device includes a detection agent module, and the server includes a detection service module ; The detecting agent module is used to simulate the online behavior of the client, and report the network measurement data collected during the online process to the detecting service module; The detection service module is used for analyzing the network measurement data and diagnosing the communication link. 2. The system of claim 1, wherein: A control channel is set between the detection service module and the detection agent module, and the detection service module and the detection agent module perform interactive transmission of control information through the control channel; A data channel is set between the detection service module and the detection proxy module, and the detection service module and the detection proxy module perform interactive transmission of data messages through the data channel. 3. The system according to claim 1, characterized in that: the deployment of the detection agent module comprises: The detection agent module is independently deployed on the terminal device; or, The probing agent module is extended and deployed on the AP. 4. The system according to claim 1, characterized in that: the deployment of the detection service module includes: The detection agent module is deployed on the server as an independent system; or: The detection agent module is integrated and deployed on the server as a system module. 5. A method for network monitoring and diagnosis, characterized in that, the method is applied to an AP or a terminal device comprising a detection agent module, and the AP and/or terminal device are communicatively connected to a server comprising a detection service module, and the method comprises : The detection agent module simulates the online access behavior of the client, and completes the online access by interacting with the detection service module and the AP; When the online access is successful, the detection agent module simulates the online communication behavior of the client, collects and reports network measurement data to the detection service module during the data communication process, so that the detection service module is based on the network measurement The data is analyzed and diagnosed on the communication link. 6. The method according to claim 5, wherein the detection agent module simulates the online access behavior of the client, and completes the online access by interacting with the detection service module and the AP, including: The detection agent module receives the detection instruction issued by the detection service module, obtains scanning information from the AP and reports it to the detection service module; The detection agent module receives the association instruction issued by the detection service module, obtains the association result from the AP and reports it to the detection service module; When the association result is that the association is successful, the detection agent module receives the authentication instruction issued by the detection service module, obtains the authentication result from the AP and reports it to the detection service module; When the authentication result is that the authentication is passed, the probing agent module receives the key issued by the probing service module, and issues the key to the AP, so that the AP performs key installation and completes the online access. 7. The method according to claim 6, wherein the detection agent module receives the detection instruction issued by the detection service module, obtains scanning information from the AP and reports it to the detection service module, including: The detection agent module receives the detection instruction issued by the detection service module through the control channel; The detection proxy module generates a scanning notification message for notifying the AP to perform channel scanning according to the detection instruction, and sends the scanning notification message to the AP, so that the AP performs channel scanning; The detection agent module receives the scanning information reported by the AP, and reports the scanning information to the detection service module. 8. The method according to claim 7, wherein the detection proxy module receives the association instruction issued by the detection service module, obtains an association result from the AP and reports it to the detection service module, including: The detection agent module receives the association instruction issued by the detection service module through the control channel; The probing agent module generates an association notification message for notifying the AP to perform wireless association according to the association instruction, and sends the association notification message to the AP, so that the AP performs wireless association; The detection agent module receives the association result reported by the AP, and reports the association result to the detection service module. 9. The method according to any one of claims 5-8, wherein the detection agent module simulates the online communication behavior of the client, and collects and reports network measurement data to the detection service module during the data communication process ,include: The detection agent module receives the data message sent by the detection service module through the data channel, and decapsulates the data message; The detection proxy module sends the decapsulated data message to the AP; The detection agent module receives the response message carrying the network measurement data reported by the AP, and encapsulates the response message; The detection agent module reports the encapsulated response message to the detection service module. 10. A network monitoring and diagnosing method, characterized in that the method is applied to the monitoring and diagnosing system according to any one of claims 1-4, wherein the AP or terminal equipment includes a detection agent module, and the server includes a detection service module, The AP, the terminal device, and the server communicate with each other, and the method includes: The detection service module sends a control instruction, and the detection proxy module simulates the online access behavior of the client based on the control instruction, and completes the online access by interacting with the detection service module and the AP; When the online access is successful, the detection service module sends a data message, and the detection agent module simulates the online communication behavior of the client based on the data message, and collects and reports the network measurement data to the network during the data communication process. The detection service module described above; The detection service module analyzes and diagnoses the communication link based on the network measurement data.