CN108833202A - Faulty link detection method, device and computer-readable storage medium - Google Patents

Abstract

The application discloses a faulty link detection method, device and computer-readable storage medium, belonging to the field of network technology. The method includes: determining multiple data transmission paths corresponding to the logical link from the first network test point to the second network test point, the multiple data transmission paths are data transmission between multiple network test points in the network The path includes the data transmission path of the logical link; acquiring the network performance index value of each data transmission path in the multiple data transmission paths; according to the network of each data transmission path in the multiple data transmission paths The performance index value is to obtain the network quality value of the logical link; if the network quality value of the logical link is smaller than the network quality threshold, determine that the logical link is a faulty link. The application can realize accurate detection of faulty links in the network and provide basis for fault demarcation.

Description

Faulty link detection method, device and computer-readable storage medium

technical field

The present application relates to the field of network technologies, and in particular to a faulty link detection method, device and computer-readable storage medium.

Background technique

As the application of the network becomes wider and wider, people rely more and more on the network. In this case, once a fault occurs in the network, it will bring great inconvenience to people's work and life. For this reason, the network is often monitored and managed so that the fault in the network can be discovered and eliminated in time. At present, when detecting faults in the network, the monitoring data (such as temperature, port information, resource usage, etc.) of each network device in the network is first collected through Simple Network Management Protocol (SNMP), and then According to the monitoring data of each network device itself, it is detected whether each network device is faulty. However, this detection method can only detect the faults of each network device itself, that is, it can only detect fault points in the network, which is not perfect. Therefore, there is an urgent need for a faulty link detection method to detect the fault of the internal link of the network.

Contents of the invention

The present application provides a faulty link detection method, device and computer-readable storage medium, which can solve the problem of imperfect fault detection in related technologies. Described technical scheme is as follows:

In a first aspect, a faulty link detection method is provided, the method comprising:

Determining a plurality of data transmission paths corresponding to logical links from the first network test point to the second network test point, the first network test point is any network test point among the plurality of network test points in the network, the The second network test point is any network test point in the multiple network test points except the first network test point, and the multiple data transmission paths are data between the multiple network test points The transmission path includes a data transmission path of the logical link;

Acquiring the network performance index value of each data transmission path in the plurality of data transmission paths;

Acquiring the network quality value of the logical link according to the network performance index value of each data transmission path in the plurality of data transmission paths;

If the network quality value of the logical link is less than the network quality threshold, it is determined that the logical link is a faulty link.

It should be noted that, for any data transmission path among the multiple data transmission paths corresponding to the logical link, the links forming the data transmission path include the logical link.

In addition, if the network quality value of the logical link is less than the network quality threshold, it indicates that the network quality of the logical link is low, that is, the logical link may be faulty, so it can be determined that the logical link is a faulty link, In this case, if the application layer of the first network test point or the application layer of the second network test point perceives an abnormal phenomenon, since the logical link from the first network test point to the second network test point is a faulty link, Therefore, it can be determined that the abnormal phenomenon is caused by a network problem, so that fault demarcation can be accurately realized.

In this embodiment of the present application, the network quality value of the logical link can be obtained in combination with the network performance index values of multiple data transmission paths corresponding to the logical link, and then the network quality value of the logical link can be detected according to the network quality value of the logical link. Whether the logical link is a faulty link can realize accurate detection of the faulty link in the network and provide a basis for fault demarcation.

Wherein, the network topology of the network is a tree structure, the multiple network test points are network nodes, and the multiple data transmission paths all pass through the logical link; or, the network topology of the network It is a star structure, the plurality of network test points are all network areas, and the plurality of data transmission paths are from a plurality of designated network nodes located in the first network test point to located in the second network test point Data transmission paths of multiple specified network nodes.

It should be noted that when the network topology of the network is a tree structure, the network may be a local area network (Local Area Network, LAN), and a LAN is a communication network formed by interconnecting various communication devices in a small area. In this case, the plurality of network test points can be the root node and the leaf node in the tree-type logical topology, such as any network test point in the plurality of network test points can be a virtual machine, a terminal, a switch, a server, etc. .

In addition, when the network topology of the network is a star structure, the network can be a Wide Area Network (Wide Area Network, WAN). . In this case, the plurality of network test points may be central nodes and peripheral nodes in a star-shaped logical topology, for example, any network test point in the plurality of network test points may be a computer room area, a city area, and the like.

Wherein, the network performance index value includes the performance index value of the network layer and the performance index value of the transport layer. The performance index value of the network layer includes transmission delay, delay jitter and packet loss rate when using the Internet Control Message Protocol (Internet Control Message Protocol, ICMP) to transmit data packets, and the performance index value of the transport layer includes the use of transmission control The transmission rate when the protocol (Transmission Control Protocol, TCP) transmits the data message and the transmission rate when the user datagram protocol (User Datagram Protocol, UDP) is used to transmit the data message.

In the embodiment of the present application, the network performance index value may include the above-mentioned multiple network performance index values, so as to realize full coverage of the general indicators of the network layer and the transport layer, and then provide sufficient input for subsequent fault analysis, and improve fault performance. Link detection accuracy.

Wherein, the acquiring the network quality value of the logical link according to the network performance index value of each data transmission path in the plurality of data transmission paths includes:

Acquiring the network quality value of the target data transmission path according to the network performance index value of the target data transmission path, where the target data transmission path is any one of the multiple data transmission paths;

determining the arithmetic mean value of the network quality values of the multiple data transmission paths as the network quality value of the logical link.

In the embodiment of the present application, determining the arithmetic mean value of the network quality values of the multiple data transmission paths as the network quality value of the logical link is to combine the multiple data transmission paths as a reference to determine the logical The network quality value of the link, so the accuracy of the determined network quality value of the logical link can be improved.

Wherein, the acquiring the network quality value of the target data transmission path according to the network performance index value of the target data transmission path includes:

Acquiring historical network performance index values of the target data transmission path;

Acquiring a first quality value of the target data transmission path according to the network performance index value of the target data transmission path and the historical network performance index value of the target data transmission path;

Acquiring a second quality value of the target data transmission path according to the network performance index value and the network performance index threshold of the target data transmission path;

determining the arithmetic mean value of the first quality value and the second quality value of the target data transmission path as a third quality value of the target data transmission path;

Determine the network quality value of the target data transmission path according to the third quality value of the target data transmission path.

It is worth noting that if the network performance index value includes only one item, the historical network of the network performance index value indicated by the network performance index value indicated by the network performance index value of the target data transmission path can be obtained in the above-mentioned manner. A performance index value and a network performance index threshold, and obtain a third quality value of the target data transmission path according to the network performance index value, the acquired historical network performance index value and the network performance index threshold. Then, when determining the network quality value of the target data transmission path according to the third quality value of the target data transmission path, the third quality value of the target data transmission path may be directly determined as the network quality value of the target data transmission path.

If the network performance index value includes multiple items, the historical network performance index value and the network performance index threshold value of the network performance index indicated by the network performance index value can be obtained for each network performance index value of the target data transmission path in the above-mentioned manner , and according to the network performance index value, the obtained historical network performance index value and the network performance index threshold value, a third quality value of the target data transmission path is obtained, so that multiple third quality values of the target data transmission path can be obtained value. Then, when determining the network quality value of the target data transmission path according to the third quality value of the target data transmission path, the arithmetic mean value of multiple third quality values of the target data transmission path may be determined as the network quality of the target data transmission path value.

Wherein, if the network quality value of the logical link is less than the network quality threshold, determining that the logical link is a faulty link includes:

If the network quality value of the logical link is less than the network quality threshold, and if there is no faulty link in the sub-links forming the logical link, then determine that the logical link is a faulty link;

Correspondingly, the method also includes:

If the network quality value of the logical link is greater than or equal to the network quality threshold, and/or, if there is a faulty link in the sub-links forming the logical link, then determining that the logical link is not a faulty link .

In this embodiment of the application, when the network quality value of the logical link is less than the network quality threshold, and there is no faulty link in the sub-links that make up the logical link, it is determined that the logical link is a faulty link . When the network quality value of the logical link is greater than or equal to the network quality threshold, and/or when there is a faulty link in the sub-links constituting the logical link, it is determined that the logical link is not a faulty link. In this way, repeated determination of the faulty link can be effectively avoided, and the detection accuracy of the faulty link can be further improved.

In a second aspect, a device for detecting a faulty link is provided, and the device for detecting a faulty link has the function of realizing the behavior of the method for detecting a faulty link in the first aspect above. The device for detecting a faulty link includes at least one module, and the at least one module is configured to implement the method for detecting a faulty link provided in the first aspect above.

The third aspect provides a faulty link detection device, the structure of the faulty link detection device includes a processor and a memory, and the memory is used to store and support the faulty link detection device to execute the above-mentioned first aspect. A program of the faulty link detection method, and storing data involved in implementing the faulty link detection method described in the first aspect above. The processor is configured to execute programs stored in the memory. The faulty link detection device may further include a communication bus for establishing a connection between the processor and the memory.

In a fourth aspect, a computer-readable storage medium is provided, wherein instructions are stored in the computer-readable storage medium, and when the computer-readable storage medium is run on a computer, the computer is made to execute the faulty link detection method described in the first aspect above.

According to a fifth aspect, a computer program product containing instructions is provided, which, when run on a computer, causes the computer to execute the faulty link detection method described in the first aspect above.

The technical effects obtained by the above-mentioned second aspect, third aspect, fourth aspect and fifth aspect are similar to those obtained by the corresponding technical means in the above-mentioned first aspect, and will not be repeated here.

The technical solution provided by this application can at least bring the following beneficial effects:

Determine a plurality of data transmission paths corresponding to the logical link from the first network test point to the second network test point, the first network test point is any network test point among the plurality of network test points in the network, and the second network test point The point is any network test point except the first network test point in the plurality of network test points, and the plurality of data transmission paths include the logical link in the data transmission path between the plurality of network test points data transmission path. After that, the network performance index value of each data transmission path in the multiple data transmission paths is obtained, and the network quality value of the logical link is obtained according to the network performance index value of each data transmission path in the multiple data transmission paths . If the network quality value of the logical link is less than the network quality threshold, it is determined that the logical link is a faulty link. In this way, accurate detection of faulty links in the network is realized, and a basis for fault demarcation is provided.

Description of drawings

FIG. 1 is a schematic diagram of an implementation environment provided by an embodiment of the present application;

Fig. 2 is a schematic structural diagram of a computer device provided by an embodiment of the present application;

FIG. 3 is a flow chart of a faulty link detection method provided in an embodiment of the present application;

FIG. 4 is a schematic diagram of a network topology structure of a network provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of a network topology structure of another network provided by an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a faulty link detection device provided in an embodiment of the present application;

FIG. 7 is a schematic structural diagram of another faulty link detection device provided by an embodiment of the present application;

FIG. 8 is a schematic structural diagram of another faulty link detection device provided by an embodiment of the present application;

FIG. 9 is a schematic structural diagram of another device for detecting a faulty link provided in an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manner of the present application will be further described in detail below in conjunction with the accompanying drawings.

Before explaining the embodiment of the present application in detail, the application scenario and implementation environment involved in the embodiment of the present application will be described.

First, the application scenarios involved in the embodiments of the present application are described.

Network quality refers to the quality of network services provided by the network layer and the transport layer to the upper application layer. At present, a large number of users and applications share the same network, and the application layer can often perceive certain abnormal phenomena, such as database connection disconnection, synchronization failure, abnormal cluster heartbeat, slow transmission rate, etc., and the application layer often attributes these abnormal phenomena to Network reasons, but actual experience shows that more than 90% of these abnormal phenomena are caused by the application layer rather than the network. Therefore, in order to accurately demarcate the fault, that is, determine whether the fault is caused by an application problem or a network problem, the embodiment of the present application provides a faulty link detection method, which can monitor and analyze the network quality status in real time to accurately detect The fault of the internal link of the network provides a basis for fault demarcation.

Then, the implementation environment involved in the embodiment of the present application will be described.

FIG. 1 is a schematic diagram of an implementation environment provided by an embodiment of the present application. Referring to Fig. 1, the implementation environment may include: a plurality of network test points 101 and a fault detection system 102, and each network test point 101 in the plurality of network test points 101 may communicate with the fault detection system 102 through a wired connection or a wireless connection ;

A plurality of network test points 101 are located in a network that needs to monitor and analyze network quality conditions, and each network test point 101 in the plurality of network test points 101 can obtain the network performance index value of the data transmission path starting from itself, and Send the obtained network performance index value to the fault detection system 102;

The fault detection system 102 is used to detect the faults of the internal links of the network. The fault detection system 102 can obtain the network performance index values of multiple data transmission paths in the network, and determine the network performance index values according to the multiple data transmission paths. Detect failed links in the network.

FIG. 2 is a schematic structural diagram of a computer device provided by an embodiment of the present application. The fault detection system 102 in FIG. 1 can be realized by the computer device shown in FIG. 2 . Referring to FIG. 2 , the computer device includes at least one processor 201 , a communication bus 202 , a memory 203 and at least one communication interface 204 .

The processor 201 may be a general-purpose central processing unit (Central Processing Unit, CPU), a microprocessor, a specific application integrated circuit (application-specific integrated circuit, ASIC), or one or more devices used to control the execution of the program program of this application. integrated circuit.

Communication bus 202 may include a path for communicating information between the components described above.

The memory 203 may be a read-only memory (read-only memory, ROM) or other types of static storage devices that can store static information and instructions, and a random access memory (random access memory, RAM) or other types that can store information and instructions The dynamic storage device can also be an electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), a CD-ROM (Compact Disc Read-Only Memory, CD-ROM) or other optical disk storage, optical disk storage ( including compact discs, laser discs, optical discs, digital versatile discs, blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be stored by a computer Any other media you want, but not limited to. The memory 203 may exist independently, and is connected to the processor 201 through the communication bus 202 . The memory 203 can also be integrated with the processor 201 .

The communication interface 204 uses any device such as a transceiver for communicating with other devices or communication networks, such as Ethernet, Radio Access Network (Radio Access Network, RAN), and Wireless Local Area Networks (Wireless Local Area Networks, WLAN).

In a specific implementation, as an embodiment, the processor 201 may include one or more CPUs, such as CPU0 and CPU1 shown in FIG. 2 .

In a specific implementation, as an embodiment, a computer device may include multiple processors, such as the processor 201 and the processor 205 shown in FIG. 2 . Each of these processors can be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). A processor herein may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).

In a specific implementation, as an embodiment, the computer device may further include an output device 206 and an input device 207 . Output device 206 is in communication with processor 201 and can display information in a variety of ways. For example, the output device 206 may be a liquid crystal display (liquid crystal display, LCD), a light emitting diode (light emitting diode, LED) display device, a cathode ray tube (cathode ray tube, CRT) display device, or a projector (projector) Wait. The input device 207 communicates with the processor 201 and can receive user input in various ways. For example, the input device 207 may be a mouse, a keyboard, a touch screen device, or a sensing device, among others.

The above computer equipment may be a general computer equipment or a special computer equipment. In a specific implementation, the computer device may be a desktop computer, a portable computer, a network server, a personal digital assistant (PDA), a mobile phone, a tablet computer, a wireless terminal device, a communication device or an embedded device, which is not limited by the embodiment of the present application. The type of computer equipment.

Wherein, the memory 203 is used to store the program code 210 for executing the solution of the present application, and the processor 201 is used to execute the program code 210 stored in the memory 203 . The computer device can implement the faulty link detection method provided in the embodiment of FIG. 3 below through the processor 201 and the program code 210 in the memory 203 .

FIG. 3 is a flow chart of a method for detecting a faulty link provided in an embodiment of the present application. Referring to Fig. 3, this method comprises the following steps:

Step 301: Determine multiple data transmission paths corresponding to the logical links from the first network test point to the second network test point.

It should be noted that the first network test point is any network test point in a plurality of network test points in the network, and the second network test point is any network test point in the plurality of network test points except the first network test point. A network test point.

In addition, the multiple data transmission paths corresponding to the logical link are the data transmission paths that include the logical link among the data transmission paths between the multiple network test points, that is, for the multiple data transmission paths For any data transmission path, the links forming the data transmission path include the logical link.

Furthermore, the network is a network that needs to monitor and analyze network quality, and the network topology of the network can be a tree structure or a star structure. And, when the network topology of the network is a tree structure, the network may be a LAN, which is a communication network formed by interconnecting various communication devices in a small area. When the network topology of the network is a star In terms of structure, the network can be WAN. WAN is a communication network established in a wide geographical area, and its scope can go beyond cities and countries to the whole world. There is no absolute boundary between LAN and WAN.

It is worth noting that when the network topology of the network is a tree structure, the plurality of network test points can all be network nodes, and at this time the plurality of network test points can be root nodes and leaves in the tree-type logical topology A node, such as any network test point in the plurality of network test points can be a virtual machine, a terminal, a switch, a server, etc. In this case, the multiple data transmission paths corresponding to the logical link pass through the logical link . When the network topology of the network is a star structure, the multiple network test points can all be network areas, and at this time, the multiple network test points can be central nodes and peripheral nodes in the star logical topology, such as the multiple Any network test point in the first network test point can be a computer room area, an urban area, etc. In this case, the multiple data transmission paths corresponding to the logical link are a plurality of designated network nodes located in the first network test point The data transmission paths to multiple designated network nodes located in the second network test point, the designated network nodes may be pre-defined, for example, the designated network nodes may be virtual machines or the like.

For example, as shown in Figure 4, the network topology of the network is a tree structure, and the multiple network test points in the network are network node 1, network node 2, network node 3, network node 4, network node 5, network Node 6 and Network Node 7. Assuming that the first network test point is network node 4 and the second network test point is network node 1, the logical link from the first network test point to the second network test point is the logical link from network node 4 to network node 1. In this case, since the data transmission path from network node 4 to network node 1, the data transmission path from network node 4 to network node 3, the data transmission path from network node 4 to network node 6 and the data transmission path from network node 4 to network node 7 The data transmission path, these four data transmission paths all pass through the logical link from the network node 4 to the network node 1, therefore, these four data transmission paths can be determined as multiple data transmission paths corresponding to the logical link.

For another example, as shown in FIG. 5 , the network topology of the network is a star structure, and the multiple network test points in the network are network area 1 , network area 2 , network area 3 and network area 4 . Assuming that the first network test point is network area 1 and the second network test point is network area 2, the logical link from the first network test point to the second network test point is the logical link from network area 1 to network area 2. In this case, assuming that the multiple specified network nodes located in network area 1 are virtual machine 1 and virtual machine 2, and the multiple specified network nodes located in network area 2 are virtual machine 3 and virtual machine 4, then the virtual The data transmission path from machine 1 to virtual machine 3, the data transmission path from virtual machine 1 to virtual machine 4, the data transmission path from virtual machine 2 to virtual machine 3, and the data transmission path from virtual machine 2 to virtual machine 4, these four data The transmission path is determined as multiple data transmission paths corresponding to the logical link.

Step 302: Obtain the network performance index value of each data transmission path in the multiple data transmission paths.

It should be noted that the network performance index value may be a test value of a performance index used to indicate network quality, for example, the network performance index value may include the performance index value of the network layer, the performance index value of the transport layer, etc. The index value can include the transmission delay, delay jitter, packet loss rate, etc. when using ICMP to transmit data packets, and the performance index value of the transport layer can include the transmission rate when using TCP to transmit data packets, and the transmission rate when using UDP to transmit data packets. The transmission rate, etc., are not limited in this embodiment of the present application.

In addition, the network performance index value in the embodiment of the present application may include the above-mentioned multiple network performance index values, so as to realize the full coverage of the general index of the network layer and the transport layer, and then provide sufficient input for subsequent fault analysis, and improve fault performance. Link detection accuracy.

Specifically, when obtaining the network performance index value of each data transmission path in the multiple data transmission paths, the network performance index value of the target data transmission path can be obtained from the initial network node of the target data transmission path, and the target data transmission path It is any data transmission path in the plurality of data transmission paths.

It should be noted that, for a certain network node, this network node can obtain the network performance index value of the data transmission path starting from itself, that is, this network node can obtain the data transmission path from itself to other network nodes. The network performance index value of the data transmission path. For example, this network node can use ICMP to send data packets to other network nodes, and determine the transmission delay, delay jitter, packet loss rate, etc. For another example, the network node may use TCP to send data packets to other network nodes, and determine the transmission rate of the data packets. For another example, this network node can use UDP to send data packets to other network nodes, and determine the transmission rate of data packets, etc. Since UDP is an unreliable fast transmission, the transmission rate of data packets in this case It may be the maximum transmission rate that can be achieved when the packet loss rate is lower than a certain threshold (such as 1%).

Step 303: Obtain the network quality value of the logical link according to the network performance index value of each data transmission path in the multiple data transmission paths.

It should be noted that the network quality value is used to indicate the network quality, that is, the higher the network quality value, the higher the network quality, indicating the better network performance; the lower the network quality value, the lower the network quality, indicating the worse network performance. The quality value can be a numeric value greater than or equal to 0 and less than or equal to 1.

Specifically, the operation of step 303 may be: firstly, according to the network performance index value of the target data transmission path, obtain the network quality value of the target data transmission path, and then determine the arithmetic mean value of the network quality values of the multiple data transmission paths as The network quality value of this logical link.

It should be noted that in the embodiment of the present application, the arithmetic mean value of the network quality values of the multiple data transmission paths is determined as the network quality value of the logical link, that is, the multiple data transmission paths are combined as a reference The network quality value of the logical link is determined, thereby improving the accuracy of the determined network quality value of the logical link.

In addition, when the arithmetic mean value of the network quality values of the multiple data transmission paths is determined as the network quality value of the logical link, the simple arithmetic mean value or weighted arithmetic mean value of the network quality values of the multiple data transmission paths may be The value is determined as the network quality value of the logical link. That is, the network quality value of the logical link can be obtained by dividing the value obtained by accumulating the network quality values of the multiple data transmission paths by the number of the multiple data transmission paths; or, the target data transmission path can be The network quality value of the target data transmission path is multiplied by the weight corresponding to the target data transmission path to obtain the reference quality value of the target data transmission path, and the reference quality values of the multiple data transmission paths are accumulated to obtain the network quality value of the logical link. The weight corresponding to each data transmission path in the transmission path can be preset, and the weights corresponding to the multiple data transmission paths are accumulated to be 1.

For example, as shown in Figure 4, the network topology of the network is a tree structure, and the multiple network test points in the network are network node 1, network node 2, network node 3, network node 4, network node 5, network Node 6 and Network Node 7. Assuming that the first network test point is network node 4, the second network test point is network node 1, and the logical link from the first network test point to the second network test point is a logical link from network node 4 to network node 1, the The four data transmission paths corresponding to the logical link are the data transmission path from network node 4 to network node 1, the data transmission path from network node 4 to network node 3, the data transmission path from network node 4 to network node 6, and the data transmission path from network node 4 to network node 6. For the data transmission path of the network node 7, the simple arithmetic mean value or the weighted arithmetic mean value of the network quality values of the four data transmission paths may be determined as the network quality value of the logical link.

For another example, as shown in FIG. 5 , the network topology of the network is a star structure, and the multiple network test points in the network are network area 1 , network area 2 , network area 3 and network area 4 . Assuming that the first network test point is network area 1, the second network test point is network area 2, and the logical link from the first network test point to the second network test point is the logical link from network area 1 to network area 2, the The four data transmission paths corresponding to the logical link are the data transmission path from virtual machine 1 located in network area 1 to virtual machine 3 located in network area 2, and the data transmission path from virtual machine 1 to virtual machine 4 located in network area 2 path, the data transmission path from virtual machine 2 to virtual machine 3 in network area 1, and the data transmission path from virtual machine 2 to virtual machine 4, then the simple arithmetic mean of the network quality values of these four data transmission paths or The weighted arithmetic mean value is determined as the network quality value of the logical link.

Wherein, according to the network performance index value of the target data transmission path, the operation of obtaining the network quality value of the target data transmission path may be: obtaining the historical network performance index value of the target data transmission path; according to the network performance index value of the target data transmission path and Obtain the first quality value of the target data transmission path based on the historical network performance index value of the target data transmission path; obtain the second quality value of the target data transmission path according to the network performance index value and the network performance index threshold of the target data transmission path; The arithmetic mean value of the first quality value and the second quality value of the target data transmission path is determined as the third quality value of the target data transmission path; according to the third quality value of the target data transmission path, the network quality value of the target data transmission path is determined .

It should be noted that the historical network performance index value of the target data transmission path is an average value of the network performance index values of the target data transmission path in a previous period of time, and the historical network performance index value is used to indicate the historical network quality.

In addition, the network performance index threshold can be set in advance, and the network performance index threshold can be set relatively large, and the network performance index threshold is used to indicate the specified network quality.

It should be noted that the first quality value of the target data transmission path is used to indicate whether the current network quality of the target data transmission path is worse or better than the historical network quality, and the first quality value of the target data transmission path may be greater than or a value equal to 0 and less than or equal to 1, and when the first quality value of the target data transmission path is 1, it indicates that the current network quality of the target data transmission path is not worse than the historical network quality, when the first quality of the target data transmission path When the value is not 1, it indicates that the current network quality of the target data transmission path is worse than the historical network quality. In this case, the smaller the first quality value of the target data transmission path, it indicates that the current network quality of the target data transmission path is compared to The worse the historical network quality is.

Wherein, when obtaining the first quality value of the target data transmission path according to the network performance index value of the target data transmission path and the historical network performance index value of the target data transmission path, if the network quality indicated by the network performance index value of the target data transmission path Not worse than the network quality indicated by the historical network performance index value of the target data transmission path, then it can be determined that the first quality value of the target data transmission path is 1; if the network quality indicated by the network performance index value of the target data transmission path is higher than the target data transmission If the network quality indicated by the historical network performance index value of the path is poor, the first network performance index value of the target data transmission path can be determined according to the difference between the network performance index value of the target data transmission path and the historical network performance index value of the target data transmission path. quality value.

It should be noted that the second quality value of the target data transmission path is used to indicate whether the current network quality of the target data transmission path is worse or better than the specified network quality, and the second quality value of the target data transmission path may be greater than Or a value equal to 0 and less than or equal to 1, and when the second quality value of the target data transmission path is 0, it indicates that the current network quality of the target data transmission path is worse than the specified network quality, when the second quality of the target data transmission path When the value is not 0, it indicates that the current network quality of the target data transmission path is not worse than the specified network quality. In this case, the larger the second quality value of the target data transmission path, it indicates that the current network quality of the target data transmission path is compared to Specify the better network quality.

Wherein, according to the network performance index value and the network performance index threshold value of the target data transmission path, when obtaining the second quality value of the target data transmission path, if the network quality indicated by the network performance index value of the target data transmission path is higher than the network performance index threshold value indicated If the network quality of the target data transmission path is poor, it can be determined that the second quality value of the target data transmission path is 0; The difference between the network performance index value of the transmission path and the network performance index threshold value determines the second quality value of the target data transmission path.

It should be noted that the third quality value of the target data transmission path is a quality value obtained by referring to the historical network quality and the specified network quality, that is, the quality value determined by combining the first quality value and the second quality value, and the target The third quality value of the data transmission path is used to indicate whether the current network quality of the target data transmission path is worse or better than the historical network quality and the specified network quality. The third quality value of the target data transmission path can be greater than or equal to A numeric value of 0 and less than or equal to 1.

Wherein, when the arithmetic mean value of the first quality value and the second quality value of the target data transmission path is determined as the third quality value of the target data transmission path, the first quality value and the second quality value of the target data transmission path can be The simple arithmetic mean or the weighted arithmetic mean of is determined as the third quality value of the target data transmission path. That is, the sum of the first quality value and the second quality value of the target data transmission path can be divided by 2 to obtain the third quality value of the target data transmission path; or, the first quality value of the target data transmission path can be value by the weight corresponding to the first quality value to obtain the first reference quality value, multiply the second quality value of the target data transmission path by the weight corresponding to the second quality value to obtain the second reference quality value, and multiply the first reference quality value value and the second reference quality value to obtain the third quality value of the target data transmission path, the weight corresponding to the first quality value and the weight corresponding to the second quality value can be preset, and the weight corresponding to the first quality value and the second The weights corresponding to the quality values add up to 1.

It is worth noting that if the network performance index value includes only one item, the historical network of the network performance index value indicated by the network performance index value indicated by the network performance index value of the target data transmission path can be obtained in the above-mentioned manner. A performance index value and a network performance index threshold, and obtain a third quality value of the target data transmission path according to the network performance index value, the acquired historical network performance index value and the network performance index threshold. Then, when determining the network quality value of the target data transmission path according to the third quality value of the target data transmission path, the third quality value of the target data transmission path may be directly determined as the network quality value of the target data transmission path.

If the network performance index value includes multiple items, the historical network performance index value and the network performance index threshold value of the network performance index indicated by the network performance index value can be obtained for each network performance index value of the target data transmission path in the above-mentioned manner , and according to the network performance index value, the obtained historical network performance index value and the network performance index threshold value, a third quality value of the target data transmission path is obtained, so that multiple third quality values of the target data transmission path can be obtained value. Then, when determining the network quality value of the target data transmission path according to the third quality value of the target data transmission path, the arithmetic mean value of multiple third quality values of the target data transmission path may be determined as the network quality of the target data transmission path value.

Wherein, when the arithmetic mean value of the multiple third quality values of the target data transmission path is determined as the network quality value of the target data transmission path, the simple arithmetic mean value or weighted arithmetic value of the multiple third quality values of the target data transmission path may be used. The average value is determined as the network quality value of the target data transmission path. That is, the value obtained by accumulating multiple third quality values of the target data transmission path can be divided by the quantity of the multiple third quality values to obtain the network quality value of the target data transmission path; or, the target data can be Multiplying any one of the multiple third quality values of the transmission path by the weight corresponding to the network performance index indicated by one of the network performance index values used to obtain the third quality value among the multiple network performance index values , to obtain the third reference quality value of the target data transmission path, so that multiple third reference network quality values of the target data transmission path can be obtained, and the target data transmission path can be obtained by accumulating the multiple third reference quality values of the target data transmission path network quality value, the weight corresponding to the network performance index indicated by each network performance index value in the multiple network performance index values can be preset, and the weight corresponding to the network performance index indicated by the multiple network performance index values is accumulated. 1.

For ease of understanding, the following network performance index values are the transmission delay, delay jitter and packet loss rate when using ICMP to transmit data packets, as well as the transmission rate when using TCP to transmit data packets and the transmission rate when using UDP to transmit data packets The transmission rate and the five network performance index values are taken as an example to illustrate the process of obtaining the network quality value of the above-mentioned target data transmission path.

First, with respect to the five network performance index values of the target data transmission path, five first quality values of the target data transmission path are acquired respectively.

1. When the network performance index value is the transmission delay when using ICMP to transmit data packets, obtain the historical transmission delay when the target data transmission path uses ICMP to transmit data packets, and the transmission when using ICMP to transmit data packets according to the target data transmission path Time delay and the historical transmission time delay when the target data transmission path uses ICMP to transmit data packets, determine the first quality value of the target data transmission path according to the following formula (1);

Among them, Hicmp _D1 is the first quality value of the target data transmission path, ICMPD _t is the transmission delay when the target data transmission path uses ICMP to transmit data packets, and ICMPD _avg,t is the history when the target data transmission path uses ICMP to transmit data packets transmission delay.

2. When the network performance index value is the delay jitter when using ICMP to transmit data packets, obtain the historical delay jitter when the target data transmission path uses ICMP to transmit data packets, and the time when using ICMP to transmit data packets according to the target data transmission path Delay jitter and the historical time delay jitter when the target data transmission path uses ICMP to transmit packets, determine the first quality value of the target data transmission path according to the following formula (2);

Among them, Hicmp _J1 is the first quality value of the target data transmission path, ICMPJ _t is the time delay jitter when the target data transmission path uses ICMP to transmit data packets, and ICMPJ _avg,t is the history when the target data transmission path uses ICMP to transmit data packets Latency jitter.

3. When the network performance index value is the packet loss rate when using ICMP to transmit data packets, obtain the historical packet loss rate when the target data transmission path uses ICMP to transmit data packets, and use ICMP to transmit data packets according to the target data transmission path. Packet rate and the historical packet loss rate when the target data transmission path uses ICMP to transmit data packets, determine the first quality value of the target data transmission path according to the following formula (3);

Among them, Hicmp _L1 is the first quality value of the target data transmission path, ICMPL _t is the packet loss rate when the target data transmission path uses ICMP to transmit data packets, and ICMPL _avg,t is the history when the target data transmission path uses ICMP to transmit data packets Packet loss rate.

4. When the network performance index value is the transmission rate when using TCP to transmit data packets, obtain the historical transmission rate when the target data transmission path uses TCP to transmit data packets, and use TCP to transmit data packets according to the target data transmission path The transmission rate and the historical transmission rate when the target data transmission path uses TCP to transmit data packets, determine the first quality value of the target data transmission path according to the following formula (4);

Among them, Htcp ₁ is the first quality value of the target data transmission path, TCP _t is the transmission rate when the target data transmission path uses TCP to transmit data packets, and TCP _{avg, t} is the target data transmission path when using TCP to transmit data packets Historical transfer rate.

5. When the network performance index value is the transmission rate when using UDP to transmit data packets, obtain the historical transmission rate when the target data transmission path uses UDP to transmit data packets, and use UDP to transmit data packets according to the target data transmission path The historical transmission rate when the transmission rate and the target data transmission path use UDP to transmit data packets, determine the first quality value of the target data transmission path according to the following formula (5);

Among them, Hudp ₁ is the first quality value of the target data transmission path, UDP _t is the transmission rate when the target data transmission path uses UDP to transmit data packets, UDP _avg,t is the target data transmission path when using UDP to transmit data packets Historical transfer rate.

Secondly, with respect to the five network performance index values of the target data transmission path, five second quality values of the target data transmission path are acquired respectively.

1. When the network performance index value is the transmission delay when using ICMP to transmit data packets, the transmission delay when using ICMP to transmit data packets and the transmission delay threshold when using ICMP to transmit data packets according to the target data transmission path are as follows Formula (6) determines the second quality value of the target data transmission path;

Wherein, Hicmp _D2 is the second quality value of the target data transmission path, ICMPD _t is the transmission delay when the target data transmission path uses ICMP to transmit data packets, and ICMPD _limit is the transmission delay threshold when ICMP is used to transmit data packets.

2. When the network performance index value is the delay jitter when using ICMP to transmit data packets, the delay jitter when using ICMP to transmit data packets and the delay jitter threshold when using ICMP to transmit data packets according to the target data transmission path are as follows Formula (7) determines the second quality value of the target data transmission path;

Wherein, Hicmp _J2 is the second quality value of the target data transmission path, ICMPJ _t is the delay jitter when the target data transmission path uses ICMP to transmit data packets, and ICMPJ _limit is the delay jitter threshold when ICMP is used to transmit data packets.

3. When the network performance index value is the packet loss rate when using ICMP to transmit data packets, the packet loss rate when using ICMP to transmit data packets according to the target data transmission path and the packet loss rate threshold when using ICMP to transmit data packets are as follows Formula (8) determines the second quality value of the target data transmission path;

Wherein, Hicmp _L2 is the second quality value of the target data transmission path, ICMPL _t is the packet loss rate when the target data transmission path uses ICMP to transmit data packets, and ICMPL _limit is the packet loss rate threshold when ICMP is used to transmit data packets.

4. When the network performance index value is the transmission rate when using TCP to transmit data packets, the transmission rate when using TCP to transmit data packets and the transmission rate threshold when using TCP to transmit data packets according to the target data transmission path are as follows Formula (9) determines the second quality value of the target data transmission path;

Among them, Htcp ₂ is the second quality value of the target data transmission path, TCP _t is the transmission rate when the target data transmission path uses TCP to transmit data packets, and TCP _limit is the transmission rate threshold when using TCP to transmit data packets.

5. When the network performance index value is the transmission rate when using UDP to transmit data packets, the transmission rate when using UDP to transmit data packets and the transmission rate threshold when using UDP to transmit data packets according to the target data transmission path are as follows Formula (10) determines the second quality value of the target data transmission path;

Wherein, Hudp ₂ is the second quality value of the target data transmission path, UDP _t is the transmission rate when the target data transmission path uses UDP to transmit data packets, and UDP _limit is the transmission rate threshold when UDP is used to transmit data packets.

Then, for the five network performance index values of the target data transmission path, five third quality values of the target data transmission path are acquired respectively.

1. When the network performance index value is the transmission delay when using ICMP to transmit data packets, the first quality value of the target data transmission path determined according to the above formula (1) and the target data transmission path determined by the above formula (6) The second quality value is to determine the third quality value of the target data transmission path according to the following formula (11);

Wherein, Hicmp _D is the third quality value of the target data transmission path, is the weight corresponding to the historical transmission delay when using ICMP to transmit data packets, is the weight corresponding to the transmission delay threshold when using ICMP to transmit data packets, and

2. When the network performance index value is the time delay jitter when using ICMP to transmit data packets, the first quality value of the target data transmission path determined according to the above formula (2) and the value of the target data transmission path determined by the above formula (7) The second quality value is to determine the third quality value of the target data transmission path according to the following formula (12);

Wherein, Hicmp _J is the third quality value of the target data transmission path, is the weight corresponding to the historical delay jitter when using ICMP to transmit data packets, is the weight corresponding to the delay jitter threshold when using ICMP to transmit data packets, and

3. When the network performance index value is the packet loss rate when using ICMP to transmit data packets, the first quality value of the target data transmission path determined according to the above formula (3) and the target data transmission path determined by the above formula (8) The second quality value is to determine the third quality value of the target data transmission path according to the following formula (13);

Wherein, Hicmp _L is the third quality value of the target data transmission path, is the weight corresponding to the historical packet loss rate when using ICMP to transmit data packets, is the weight corresponding to the packet loss rate threshold when using ICMP to transmit data packets, and

4. When the network performance index value is the transmission rate when using TCP to transmit data packets, the first quality value of the target data transmission path determined according to the above formula (4) and the target data transmission path determined by the above formula (9) The second quality value is to determine the third quality value of the target data transmission path according to the following formula (14);

Wherein, Htcp is the third quality value of the target data transmission path, is the weight corresponding to the historical transmission rate when using TCP to transmit data packets, is the weight corresponding to the transmission rate threshold when using TCP to transmit data packets, and

5. When the network performance index value is the transmission rate when using UDP to transmit data packets, the first quality value of the target data transmission path determined according to the above formula (5) and the target data transmission path determined by the above formula (10) The second quality value is to determine the third quality value of the target data transmission path according to the following formula (15);

Wherein, Hudp is the third quality value of the target data transmission path, is the weight corresponding to the historical transmission rate when using UDP to transmit data packets, is the weight corresponding to the transmission rate threshold when using UDP to transmit data packets, and

Finally, according to the five third quality values of the target data transmission path, the network quality value of the target data transmission path is determined.

The third quality value of the target data transmission path determined according to the above formula (11), the third quality value of the target data transmission path determined by the above formula (12), the third quality value of the target data transmission path determined by the above formula (13) Value, the third quality value of the target data transmission path determined by the above formula (14) and the third quality value of the target data transmission path determined by the above formula (15), determine the network quality of the target data transmission path according to the following formula (16) value;

H _t ＝w _icmpD *Hicmp _D +w _icmpJ *Hicmp _J +w _icmpL *Hicmp _L +w _tcp *Htcp+w _udp *Hudp (16)

Among them, H _t is the network quality value of the target data transmission path, w _icmpD is the weight corresponding to the network performance index indicated by the transmission delay when using ICMP to transmit data packets, and w _icmpJ is the delay and jitter indication when using ICMP to transmit data packets w _icmpL is the weight corresponding to the network performance indicator indicated by the packet loss rate when using ICMP to transmit data packets, w _tcp is the corresponding weight to the network performance indicator indicated by the transmission rate when using TCP to transmit data packets Weight, w _udp is the weight corresponding to the network performance index indicated by the transmission rate when using UDP to transmit data packets, w _icmpD ∈ [0,1], w _icmpJ ∈ [0,1], w _icmpL ∈ [0,1] , w _tcp ∈ [0,1], w _udp ∈ [0,1], and w _icmpD +w _icmpJ +w _icmpL +w _tcp +w _udp =1.

Step 304: If the network quality value of the logical link is less than the network quality threshold, determine that the logical link is a faulty link.

Further, if the network quality value of the logical link is greater than or equal to the network quality threshold, it is determined that the logical link is not a faulty link.

It should be noted that the network quality threshold can be set in advance, and the network quality threshold can be set to be larger.

In addition, if the network quality value of the logical link is less than the network quality threshold, it indicates that the network quality of the logical link is low, that is, the logical link may be faulty, so it can be determined that the logical link is a faulty link, In this case, if the application layer of the first network test point or the application layer of the second network test point perceives an abnormal phenomenon, since the logical link from the first network test point to the second network test point is a faulty link, Therefore, it can be determined that the abnormal phenomenon is caused by network problems. If the network quality value of the logical link is greater than or equal to the network quality threshold, it indicates that the network quality of the logical link is high, that is, the logical link should not be faulty, so it can be determined that the logical link is not a faulty link In this case, if the application layer of the first network test point or the application layer of the second network test point perceives an abnormal phenomenon, the logical link from the first network test point to the second network test point is not a fault Link, so it can be determined that the abnormal phenomenon is not caused by network problems, but by application problems. In this way, fault demarcation can be accurately realized.

It is worth noting that in practical applications, the logical link from one network node to another network node can often be composed of logical links between other network nodes. As shown in Figure 4, the logical link from network node 4 to network node 1 A link is composed of a logical link from network node 4 to network node 2 and a logical link from network node 2 to network node 1. At this time, other logical links that form a certain logical link can be called this logical link sub-links of the road. In this case, when the sub-links that make up a logical link fail, the logical link will also be faulty, so in order to avoid repeated detection of faults, the operation of step 304 can not only be: if the logical link If the network quality value of the logical link is less than the network quality threshold, it is directly determined that the logical link is a faulty link; if the network quality value of the logical link is greater than or equal to the network quality threshold, it is directly determined that the logical link is not a faulty link. Moreover, the operation of step 304 may also be: if the network quality value of the logical link is less than the network quality threshold, and if there is no faulty link in the sub-links forming the logical link, then determine that the logical link is faulty link; if the network quality value of the logical link is greater than or equal to the network quality threshold, and/or, if there is a faulty link in the sub-links that make up the logical link, then it is determined that the logical link is not a faulty link . In this way, repeated determination of the faulty link can be effectively avoided, and the detection accuracy of the faulty link can be further improved.

In the embodiment of the present application, multiple data transmission paths corresponding to the logical link from the first network test point to the second network test point are determined, and the first network test point is any network among the multiple network test points in the network A test point, the second network test point is any network test point in the multiple network test points except the first network test point, and the multiple data transmission paths are data transmission paths between the multiple network test points Include the data transmission path of the logical link. After that, the network performance index value of each data transmission path in the multiple data transmission paths is obtained, and the network quality value of the logical link is obtained according to the network performance index value of each data transmission path in the multiple data transmission paths . If the network quality value of the logical link is less than the network quality threshold, it is determined that the logical link is a faulty link. In this way, accurate detection of faulty links in the network is realized, and a basis for fault demarcation is provided.

Fig. 6 is a schematic structural diagram of a faulty link detection device provided by an embodiment of the present application. The faulty link detection device can be implemented by software, hardware or a combination of the two to become part or all of computer equipment. The computer equipment can be The computer equipment shown in Figure 2. Referring to FIG. 6 , the device includes a first determination module 601 , a first acquisition module 602 , a second acquisition module 603 and a second determination module 604 .

The first determination module 601 is configured to execute step 301 in the above-mentioned embodiment in FIG. 3 ;

The first acquiring module 602 is configured to execute step 302 in the above-mentioned embodiment in FIG. 3 ;

The second acquiring module 603 is configured to execute step 303 in the above-mentioned embodiment in FIG. 3 ;

The second determining module 604 is configured to execute step 304 in the above embodiment in FIG. 3 .

Optionally, the network topology of the network is a tree structure, multiple network test points are network nodes, and multiple data transmission paths pass through logical links; or, the network topology of the network is a star structure, and multiple networks The test points are all network areas, and the multiple data transmission paths are data transmission paths from multiple specified network nodes located in the first network test point to multiple specified network nodes located in the second network test point.

Optionally, the network performance index value includes a network layer performance index value and a transport layer performance index value.

Optionally, the performance index value of the network layer includes transmission delay, delay jitter and packet loss rate when using ICMP to transmit data packets, and the performance index value of the transport layer includes transmission rate when using TCP to transmit data packets and using UDP The transmission rate when transmitting datagrams.

Optionally, referring to FIG. 7, the second obtaining module 603 includes:

The acquiring unit 6031 is configured to acquire the network quality value of the target data transmission path according to the network performance index value of the target data transmission path, where the target data transmission path is any one of the multiple data transmission paths;

A determining unit 6032, configured to determine the arithmetic mean value of the network quality values of multiple data transmission paths as the network quality value of the logical link.

Optionally, referring to FIG. 8, the obtaining unit 6031 includes:

The first acquisition subunit 60311 is configured to acquire the historical network performance index value of the target data transmission path;

The second acquiring subunit 60312 is configured to acquire the first quality value of the target data transmission path according to the network performance index value of the target data transmission path and the historical network performance index value of the target data transmission path;

The third acquiring subunit 60313 is configured to acquire the second quality value of the target data transmission path according to the network performance index value and the network performance index threshold of the target data transmission path;

The first determination subunit 60314 is configured to determine the arithmetic mean value of the first quality value and the second quality value of the target data transmission path as the third quality value of the target data transmission path;

The second determining subunit 60315 is configured to determine the network quality value of the target data transmission path according to the third quality value of the target data transmission path.

Optionally, the second determining module 604 is used for:

If the network quality value of the logical link is less than the network quality threshold, and if there is no faulty link in the sub-links forming the logical link, then determine that the logical link is a faulty link;

Correspondingly, referring to Fig. 9, the device also includes:

The third determining module 605 is configured to determine that the logical link is not a fault if the network quality value of the logical link is greater than or equal to the network quality threshold, and/or, if there is a faulty link in the sub-links forming the logical link link.

In the embodiment of the present application, multiple data transmission paths corresponding to the logical link from the first network test point to the second network test point are determined, and the first network test point is any network among the multiple network test points in the network A test point, the second network test point is any network test point in the multiple network test points except the first network test point, and the multiple data transmission paths are data transmission paths between the multiple network test points Include the data transmission path of the logical link. After that, the network performance index value of each data transmission path in the multiple data transmission paths is obtained, and the network quality value of the logical link is obtained according to the network performance index value of each data transmission path in the multiple data transmission paths . If the network quality value of the logical link is less than the network quality threshold, it is determined that the logical link is a faulty link. In this way, accurate detection of faulty links in the network is realized, and a basis for fault demarcation is provided.

It should be noted that: the faulty link detection device provided in the above embodiment only uses the division of the above-mentioned functional modules as an example for the faulty link detection. In practical applications, the above-mentioned functions can be assigned to different functional modules as required Module completion means that the internal structure of the device is divided into different functional modules to complete all or part of the functions described above. In addition, the faulty link detection device and the faulty link detection method embodiment provided by the above embodiment belong to the same idea, and the specific implementation process thereof is detailed in the method embodiment, and will not be repeated here.

In the above embodiments, all or part may be implemented by software, hardware, firmware or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on the computer, the processes or functions according to the embodiments of the present application will be generated in whole or in part. The computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website, computer, server or data center Transmission to another website site, computer, server or data center via wired (eg coaxial cable, optical fiber, Digital Subscriber Line (DSL)) or wireless (eg infrared, wireless, microwave, etc.). The computer-readable storage medium may be any available medium that can be accessed by a computer, or a data storage device such as a server or a data center integrated with one or more available media. The available medium may be a magnetic medium (for example: floppy disk, hard disk, magnetic tape), an optical medium (for example: Digital Versatile Disc (Digital Versatile Disc, DVD)), or a semiconductor medium (for example: Solid State Disk (Solid State Disk, SSD) )Wait.

The above-mentioned embodiments provided by the application are not intended to limit the application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the application shall be included in the protection scope of the application. Inside.

Claims (15)

1. A faulty link detection method, characterized in that the method comprises: Determining a plurality of data transmission paths corresponding to logical links from the first network test point to the second network test point, the first network test point is any network test point among the plurality of network test points in the network, the The second network test point is any network test point in the multiple network test points except the first network test point, and the multiple data transmission paths are data between the multiple network test points The transmission path includes a data transmission path of the logical link; Acquiring the network performance index value of each data transmission path in the plurality of data transmission paths; Acquiring the network quality value of the logical link according to the network performance index value of each data transmission path in the plurality of data transmission paths; If the network quality value of the logical link is less than the network quality threshold, it is determined that the logical link is a faulty link. 2. The method of claim 1, wherein The network topology of the network is a tree structure, the plurality of network test points are network nodes, and the plurality of data transmission paths pass through the logical link; or, The network topology of the network is a star structure, the multiple network test points are all network areas, and the multiple data transmission paths are from a plurality of designated network nodes located in the first network test point to the Data transmission paths of multiple designated network nodes in the second network test point. 3. The method according to claim 1, wherein the network performance index value comprises a network layer performance index value and a transport layer performance index value. 4. The method according to claim 3, wherein the performance index value of the network layer comprises transmission time delay, time delay jitter and packet loss rate when using Internet Control Message Protocol ICMP to transmit data packets, and the transmission The performance index value of the layer includes the transmission rate when the transmission control protocol TCP is used to transmit the data message and the transmission rate when the user datagram protocol UDP is used to transmit the data message. 5. The method according to any one of claims 1-4, wherein the network quality of the logical link is obtained according to the network performance index value of each data transmission path in the plurality of data transmission paths values, including: Acquiring the network quality value of the target data transmission path according to the network performance index value of the target data transmission path, where the target data transmission path is any one of the multiple data transmission paths; determining the arithmetic mean value of the network quality values of the multiple data transmission paths as the network quality value of the logical link. 6. The method according to claim 5, wherein said obtaining the network quality value of the target data transmission path according to the network performance index value of the target data transmission path comprises: Acquiring historical network performance index values of the target data transmission path; Acquiring a first quality value of the target data transmission path according to the network performance index value of the target data transmission path and the historical network performance index value of the target data transmission path; Acquiring a second quality value of the target data transmission path according to the network performance index value and the network performance index threshold of the target data transmission path; determining the arithmetic mean value of the first quality value and the second quality value of the target data transmission path as a third quality value of the target data transmission path; Determine the network quality value of the target data transmission path according to the third quality value of the target data transmission path. 7. The method according to claim 1, wherein if the network quality value of the logical link is less than a network quality threshold, determining that the logical link is a faulty link comprises: If the network quality value of the logical link is less than the network quality threshold, and if there is no faulty link in the sub-links forming the logical link, then determine that the logical link is a faulty link; Correspondingly, the method also includes: If the network quality value of the logical link is greater than or equal to the network quality threshold, and/or, if there is a faulty link in the sub-links forming the logical link, then determining that the logical link is not a faulty link . 8. A faulty link detection device, characterized in that the device comprises: The first determination module is configured to determine a plurality of data transmission paths corresponding to logical links from the first network test point to the second network test point, and the first network test point is any of the plurality of network test points in the network A network test point, the second network test point is any network test point in the plurality of network test points except the first network test point, and the plurality of data transmission paths are the plurality of network test points The data transmission path between the network test points includes the data transmission path of the logical link; A first acquisition module, configured to acquire the network performance index value of each data transmission path in the plurality of data transmission paths; The second acquiring module is configured to acquire the network quality value of the logical link according to the network performance index value of each data transmission path in the plurality of data transmission paths; The second determining module is configured to determine that the logical link is a faulty link if the network quality value of the logical link is less than a network quality threshold. 9. The apparatus of claim 8, wherein The network topology of the network is a tree structure, the plurality of network test points are network nodes, and the plurality of data transmission paths pass through the logical link; or, The network topology of the network is a star structure, the multiple network test points are all network areas, and the multiple data transmission paths are from a plurality of designated network nodes located in the first network test point to the Data transmission paths of multiple designated network nodes in the second network test point. 10. The device according to claim 8, wherein the network performance index value comprises a network layer performance index value and a transport layer performance index value. 11. The device according to claim 10, wherein the performance index value of the network layer includes transmission delay, delay jitter and packet loss rate when using the Internet Control Message Protocol (ICMP) to transmit data packets, and the transmission The performance index value of the layer includes the transmission rate when the transmission control protocol TCP is used to transmit the data message and the transmission rate when the user datagram protocol UDP is used to transmit the data message. 12. The device according to any one of claims 8-11, wherein the second acquiring module comprises: An acquisition unit, configured to acquire a network quality value of the target data transmission path according to a network performance index value of the target data transmission path, where the target data transmission path is any one of the multiple data transmission paths; A determining unit, configured to determine the arithmetic mean value of the network quality values of the plurality of data transmission paths as the network quality value of the logical link. 13. The device according to claim 12, wherein the acquiring unit comprises: A first acquiring subunit, configured to acquire historical network performance index values of the target data transmission path; The second obtaining subunit is configured to obtain the first quality value of the target data transmission path according to the network performance index value of the target data transmission path and the historical network performance index value of the target data transmission path; A third acquiring subunit, configured to acquire a second quality value of the target data transmission path according to the network performance index value and the network performance index threshold of the target data transmission path; A first determining subunit, configured to determine the arithmetic mean value of the first quality value and the second quality value of the target data transmission path as the third quality value of the target data transmission path; The second determination subunit is configured to determine the network quality value of the target data transmission path according to the third quality value of the target data transmission path. 14. The device according to claim 8, wherein the second determining module is used for: If the network quality value of the logical link is less than the network quality threshold, and if there is no faulty link in the sub-links forming the logical link, then determine that the logical link is a faulty link; Correspondingly, the device also includes: A third determining module, configured to determine that the logical The link is not a failed link. 15. A computer-readable storage medium, wherein instructions are stored in the computer-readable storage medium, and when the computer-readable storage medium is run on a computer, the computer is made to execute the method according to any one of claims 1-7.