WO2020211482A1

WO2020211482A1 - Network topology information acquisition method, apparatus, device, and storage medium

Info

Publication number: WO2020211482A1
Application number: PCT/CN2020/070944
Authority: WO
Inventors: 肖欣; 高云鹏; 谢于明; 周世勇
Original assignee: 华为技术有限公司
Priority date: 2019-04-17
Filing date: 2020-01-08
Publication date: 2020-10-22
Also published as: CN111836134A; CN111836134B

Abstract

The present application discloses a network topology information acquisition method, an apparatus, a device, and a storage medium, belonging to the field of network technology. Said method comprises: acquiring first physical data of target user side devices in a network, the first physical data of the target user side devices under the light splitting devices at the same stage being within the same target numerical value range; performing clustering analysis on the first physical data of the target user side devices, to obtain one or more data groups, the target user side devices corresponding to the first physical data of the same data group being user side devices under the light splitting devices at the same stage; performing stage division on the light splitting devices to which the target user side devices under the light splitting devices at different stages belong, to obtain the stage of the light splitting devices to which the target user side devices belong; and according to the stage of the light splitting devices to which the target user side devices belong, determining network topology information. The present application can quickly and accurately acquire topology information from a network.

Description

Method, device, equipment and storage medium for acquiring network topology information

This application claims the priority of a Chinese patent application filed on April 17, 2019 with the application number 201910309936.5 and the invention title "Methods, devices, equipment and storage media for obtaining network topology information", the entire contents of which are incorporated by reference In this application.

Technical field

This application relates to the field of network technology, and in particular to a method, device, device, and storage medium for obtaining network topology information.

Background technique

Passive optical network (PON) is mainly composed of optical line terminal (optical line terminal, OLT), optical distribution network (optical distribution network, ODN) containing passive optical components, and optical network unit (optical network unit) on the user side. network unit, ONU). Among them, ODN includes optical fiber and passive optical splitting equipment, forming a multi-level network topology through passive optical splitting equipment and optical fiber. According to actual needs, the PON network can form different topological structures.

Because the PON network scene is complex, and the corresponding relationship between the ONU and the optical splitting device in the network often changes during actual use, the topology information of the PON network also changes accordingly. In related technologies, the method for obtaining PON network topology information is generally manual management to obtain the updated topology information of the optical splitting equipment at all levels.

However, because the topology information of the optical splitting equipment in the PON network is very cumbersome, and relying solely on manual management, maintenance is difficult, costly, and low in efficiency, and the topology information may be inaccurate.

Summary of the invention

The embodiments of the present application provide a method, device, device, and computer-readable storage medium for acquiring network topology information to solve the problems provided by related technologies. The technical solutions are as follows:

In a first aspect, a method for acquiring network topology information is provided. The method includes: acquiring first physical data of a target user-side device in the network, and the first physical data of the target user-side device under the same level of optical splitting device is in the same Within the target numerical range; perform cluster analysis on the first physical data of the target user-side device to obtain one or more data groups, and the target user-side device corresponding to the first physical data of the same data group is under the same level of spectroscopic equipment The user-side equipment; classify the spectroscopic equipment to which the target user-side equipment under different levels of spectroscopy equipment belongs to obtain the level of the spectroscopic equipment to which the target user-side equipment belongs; according to the spectroscopic equipment to which the target user-side equipment belongs Level, which determines the network topology information.

Optionally, the determining the network topology information according to the level of the spectroscopic device to which the target user-side device belongs includes: obtaining identification information of the target user-side device; according to the identification information of the target user-side device and the target The level of the optical splitting device to which the user-side device belongs determines the network topology information.

Optionally, before acquiring the first physical data of the target user-side device in the network, the method further includes: acquiring second physical data that characterizes the stability of the user-side device; and targeting the user-side device whose second physical data meets the target threshold User-side equipment.

Optionally, the classifying the spectroscopic devices to which the target user-side device belongs under different levels of spectroscopic devices to obtain the class of the spectroscopic device to which the target user-side device belongs includes: obtaining the target user in each data group The representative data of the first physical data of the side device; according to the representative data and the setting standard corresponding to the representative data, determine the level of the spectroscopic device to which the target user-side device of the different level of spectroscopic device belongs.

Optionally, the first physical data and the second physical data include: optical power and/or optical distance.

Optionally, when the first physical data of the target user-side device includes optical power, the setting standard includes the number of optical splitting devices in the network and the optical splitting ratio of each optical splitting device. The optical splitting ratio is used to determine each optical power. The optical power of the user-side equipment under the first-level optical splitting equipment is different from the optical power of the user-side equipment under the different-level optical splitting equipment; the target is determined under the different-level optical splitting equipment according to the representative data and the setting standards corresponding to the representative data The level of the optical splitting device to which the user-side device belongs includes: matching the representative data of the optical power with the optical power of the user-side device of the optical splitting device in the network; when the matching is successful, the matched user-side device of the optical splitting device The level of the spectroscopic device corresponding to the optical power of is used as the level of the spectroscopic device to which the target user-side device belongs to the representative data of the optical power.

Optionally, when the first physical data of the target user-side equipment includes the optical distance, the setting standard includes the number of optical splitting equipment levels in the network and the constrained optical distance of the user-side equipment under each level of optical splitting equipment. The constrained optical distances of the user-side equipment under the spectroscopic equipment are different; the determination of the level of the spectroscopic equipment to which the target user-side equipment under different levels of spectroscopic equipment belongs according to the representative data and the setting standards corresponding to the representative data includes: The representative data of the optical distance is matched with the constrained optical distance of the user-side equipment under each level of spectroscopy equipment; when the matching is successful, the matched constrained optical distance of the user-side equipment is matched to the number of levels of the spectroscopic equipment, The level of the spectroscopic device to which the target user-side device belongs as the representative data of the optical distance.

Optionally, the identification information of the target user-side device includes port information of the target user-side device in the network; the obtaining the identification information of the target user-side device includes: obtaining the target user-side device through a port information communication protocol Port information of the device in the network.

In a second aspect, an apparatus for acquiring network topology information is provided. The apparatus includes: an acquiring module for acquiring first physical data of a target user-side device in the network, and a second physical data of the target user-side device under the same level of optical splitting equipment One physical data is within the same target value range; the clustering module is used to perform cluster analysis on the first physical data of the target user-side device to obtain one or more data groups, and the first physical data of the same data group corresponds to The target user-side equipment is the user-side equipment under the same level of optical splitting equipment; the class division module is used to classify the optical splitting equipment to which the target user-side equipment under different levels of optical splitting equipment belongs to obtain the The class of the optical splitting device; the determining module is used to determine the network topology information according to the class of the optical splitting device to which the target user-side device belongs.

Optionally, the determining module is configured to obtain identification information of the target user-side device; determine the network topology information according to the identification information of the target user-side device and the level of the optical splitting device to which the target user-side device belongs .

Optionally, the acquiring module is further configured to acquire second physical data that characterizes the stability of the user-side device; the user-side device whose second physical data meets the target threshold is taken as the target user-side device.

Optionally, the level division module includes: an obtaining unit, configured to obtain representative data of the first physical data of the target user-side device in each data group; and a determining unit, configured to obtain representative data based on the representative data and the Represents the setting standards corresponding to the data, and determines the level of the spectroscopic equipment to which the target user-side equipment under different levels of spectroscopic equipment belongs.

Optionally, when the first physical data of the target user-side device includes optical power, the setting standard includes the number of optical splitting devices in the network and the optical splitting ratio of each optical splitting device. The optical splitting ratio is used to determine each optical power. The optical power of the user-side equipment under the first-level optical splitting equipment is different from the optical power of the user-side equipment under the optical splitting equipment of different levels; the determining unit is used to compare the representative data of the optical power with the optical power of the user-side equipment under the optical splitting equipment in the network The optical power is matched; when the matching is successful, the level of the optical splitting device corresponding to the optical power of the user-side device under the matched optical splitting device is used as the optical splitting device to which the target user-side device belongs to the representative data of the optical power The grade.

Optionally, when the first physical data of the target user-side equipment includes the optical distance, the setting standard includes the number of optical splitting equipment levels in the network and the constrained optical distance of the user-side equipment under each level of optical splitting equipment. The constrained optical distances of the user-side equipment under the spectroscopic equipment are different; the determining unit is used to match the representative data of the optical distance with the constrained optical distances of the user-side equipment under each level of the spectroscopic equipment; when the matching is successful , Taking the matched class of the spectroscopic device corresponding to the constrained optical distance of the user-side device as the class of the spectroscopic device to which the target user-side device belongs corresponding to the representative data of the optical distance.

Optionally, the identification information of the target user-side device includes port information of the target user-side device in the network; the determining module is configured to obtain the port information of the target user-side device in the network through a port information communication protocol information.

In a third aspect, a device for acquiring network topology information is provided. The device includes a memory and a processor. The memory stores at least one instruction, and the at least one instruction is loaded and executed by the processor to Implement the first aspect or the method in any possible implementation of the first aspect.

In a fourth aspect, a computer-readable storage medium is provided, and at least one instruction is stored in the storage medium, and the instruction is loaded and executed by a processor to implement the first aspect or any one of the first aspect. The method in the embodiment.

In a fifth aspect, another communication device is provided, which includes: a transceiver, a memory, and a processor. Wherein, the transceiver, the memory, and the processor communicate with each other through an internal connection path, the memory is used to store instructions, and the processor is used to execute the instructions stored in the memory to control the transceiver to receive signals and control the transceiver to send signals And when the processor executes the instructions stored in the memory, the processor is caused to execute the first aspect or the method in any possible implementation manner of the first aspect.

Optionally, there are one or more processors and one or more memories.

Optionally, the memory may be integrated with the processor, or the memory and the processor may be provided separately.

In the specific implementation process, the memory can be a non-transitory (non-transitory) memory, such as a read only memory (ROM), which can be integrated with the processor on the same chip, or can be set in different On the chip, the embodiment of the present application does not limit the type of memory and the setting mode of the memory and the processor.

In a sixth aspect, a computer program (product) is provided. The computer program (product) includes: computer program code, which when the computer program code is run by a computer, causes the computer to execute the methods in the above aspects.

In a seventh aspect, a chip is provided, including a processor, configured to call and execute instructions stored in the memory from a memory, so that a communication device installed with the chip executes the methods in the foregoing aspects.

In an eighth aspect, another chip is provided, including: an input interface, an output interface, a processor, and a memory. The input interface, output interface, the processor, and the memory are connected by an internal connection path, and the processing The processor is used to execute the code in the memory, and when the code is executed, the processor is used to execute the methods in the foregoing aspects.

The beneficial effects brought about by the technical solution provided by this application include at least:

By obtaining the first physical data of the target user-side equipment under different levels of optical splitting equipment in the network, perform cluster analysis on the obtained first physical data to obtain a data group, and use the target user-side equipment corresponding to the physical data of the same data group as The user-side equipment under the same level of optical splitting equipment is used to classify the target user-side equipment under different levels of optical splitting equipment. Then classify the spectroscopic equipment to which the target user-side equipment under different levels of spectroscopic equipment belongs to determine the level of the spectroscopic equipment to which the target user-side equipment belongs, and obtain the level of the spectroscopic equipment to which the target user-side equipment belongs to obtain the target user The topology information of the side device in the network is then used to locate the topology structure relationship of the user side device in the network, which solves the need for manual management of topology information, which is difficult to maintain, high cost, low efficiency, and topology information may appear The problem of inaccuracy.

Description of the drawings

Figure 1 is a schematic diagram of a PON network structure provided by an embodiment of the application;

2 is a flowchart of a method for acquiring network topology information provided by an embodiment of the application;

Figure 3 is a schematic diagram of the PON network structure provided by an embodiment of the application;

4 is a schematic diagram of a data processing process of a method for acquiring network topology information according to an embodiment of this application;

5 is a schematic diagram of aggregation results of a method for acquiring network topology information according to an embodiment of the application;

6 is a schematic diagram of aggregation results of a method for acquiring network topology information according to an embodiment of the application;

FIG. 7 is a flowchart of a method for acquiring network topology information according to an embodiment of this application;

FIG. 8 is a schematic diagram of stability analysis results of a method for acquiring network topology information according to an embodiment of the application;

FIG. 9 is a schematic diagram of a data processing process of a method for acquiring network topology information according to an embodiment of this application;

FIG. 10 is a flowchart of a method for acquiring network topology information according to an embodiment of this application;

FIG. 11 is a schematic structural diagram of a device for acquiring network topology information provided by an embodiment of this application;

FIG. 12 is a schematic structural diagram of a device for acquiring network topology information according to an embodiment of this application.

detailed description

The terminology used in the implementation mode of this application is only used to explain the specific embodiments of this application, and is not intended to limit this application.

First, the application scenarios involved in the embodiments of the present application are described. The methods recorded in the embodiments of the present application can be applied to a network topology structure formed by using optical splitting equipment. The spectroscopic device may be a spectroscope, of course, it may also be other devices that can play the same role. The embodiment of the present application takes a multi-level passive optical fiber network formed by an optical splitter as an example to describe the technical solution of the present application in detail. Illustratively, as shown in Fig. 1, Fig. 1 is a single-chain multi-level passive optical fiber network. The network is mainly composed of optical line terminals (OLT) and optical distribution networks containing passive optical devices ( Optical Distribution Network (ODN) and user-side equipment. The user-side equipment in Figure 1 is an optical network unit (ONU). Among them, ODN includes backbone fiber 5, secondary fiber 6, tertiary fiber 7, fourth-level fiber 8, and first-level optical splitter 1, second-level optical splitter 2, third-level optical splitter 3, and fourth-level optical splitter 4 . The OLT and the first-stage optical splitter are connected by a backbone fiber 5, the first-stage optical splitter 1 and the second-stage optical splitter 2 are connected by a second-stage optical fiber 6, and the second-stage optical splitter 2 and the third-stage optical splitter 3 are connected. They are connected by a three-stage optical fiber 7, and the third-stage optical splitter and the fourth-stage optical splitter are connected by a four-stage optical fiber 8. The optical splitter and the optical fiber form a single-point to multi-point tree network topology.

The first-level splitter 1 includes a 1:2 sub-splitter 11 and a 1:8 sub-splitter 14, the second-level splitter 2 includes a 1:2 sub-splitter 12 and a 1:8 sub-splitter 15, the third-level splitter The splitter 3 includes a 1:2 sub-splitter 13 and a 1:8 sub-splitter 16, and the fourth-stage splitter 4 includes a 1:8 sub-splitter 17. Among them, 1:2 means that the splitter has 1 input port and 2 output ports, and similarly, 1:8 means that the splitter has 1 input port and 8 output ports. A person skilled in the art can set the number of sub-splitters included in each level of optical splitter and the number of input ports and output ports of each sub-splitter according to actual needs. This application does not limit it, but only sets it for describing the needs of the solution. At the same time, each 1:8 output port in Figure 1 can be used to connect up to 8 ONUs, and only one ONU is shown in Figure 1. Of course, in addition to the network topological structure shown in FIG. 1, those skilled in the art can deploy other network topological structures according to actual network setting requirements.

The embodiment of the present application provides a method for acquiring network topology information, which is applied to an analysis device that can perform network data processing. As shown in Figure 2, the method includes:

S21: Acquire first physical data of the target user-side device in the network, and the first physical data of the target user-side device under the same level of optical splitting device is within the same target value range.

Since the physical data of the user-side equipment can also remain stable when the network status of the user-side equipment is stable, the topology-related situation can be reflected to a certain extent. In this regard, in the embodiment of the present application, a user-side device that has achieved stability is used as a target user-side device to obtain the first physical data of the target user-side device, so as to obtain topology information accordingly. As shown in Figure 3, the optical splitter 21 is a level of optical splitter, called the first-stage optical splitter; the optical splitter 22 and the optical splitter 23 are the same level of optical splitter, called the second-stage optical splitter; the optical splitter 24 is One level of optical splitter is called the third level of optical splitter. When the stability of the user-side device 221, the user-side device 222, the user-side device 223, and the user-side device 224 all meet the stability requirements, the user-side device 221, the user-side device 222, the user-side device 223, and the user-side device 224 all meet the stability requirements. It is the target user side equipment under the second-level optical splitter. Similarly, when the user-side device 241 meets the stability requirement, the user-side device 241 is the target user-side device under the third-level optical splitter. Regarding the method of determining the target user-side device, please refer to the relevant description of S211-S212, which will not be repeated here. Among them, the first physical data of the target user-side device may first periodically report the data to the OLT through the target user-side device itself, and then the OLT periodically reports the data to the data collection device; or directly periodically reports the data through the target user-side device To the data acquisition device.

The period for the target user-side device to report data can be set according to the actual needs of the network, and can be in minutes or seconds. After reporting to the data acquisition device, the data acquisition device can uniformly store the data in the storage module of the analysis device for analysis and use by the analysis device. The storage module may be a distributed file system (hadoop distributed file system, HDFS). By storing data in the storage module, the analysis device can obtain the data in the storage module for analysis and processing at any time, or perform data analysis and processing according to the user's request. At the same time, the data acquisition device can also directly upload the collected data to the analysis device. When the analysis device receives the data, it triggers the analysis device to perform analysis and processing, as shown in Figure 4.

Those skilled in the art can know that the user-side devices under the same level of optical splitters in the network are theoretically equivalent. However, due to the transmission loss of the first physical data, the first physical data of the user-side equipment under the same level of optical splitting equipment may have deviations. Therefore, in the solution of the embodiment of the present application, as long as the first physical data of the user-side device under the same level of optical splitting device is in the same target value range. The target value range can be obtained according to actual network performance tests.

Exemplarily, the first physical data may be the optical power (including the received optical power and/or the transmitted optical power) and/or the optical distance of the target user-side device. The optical power and optical distance of the target user-side equipment are not the same under different levels of optical splitters in the network. By acquiring the data of this kind of characteristics, it is convenient to perform cluster analysis on the physical data of the target user-side device, and achieve the purpose of judging the level of the spectroscope to which the target user-side device belongs.

Of course, those skilled in the art can also select other physical data of the target user side device as the division calculation data of the optical splitter level. The first physical data selected in the embodiment of the present application may be any one or more of the above-mentioned physical data. In the case of selecting multiple physical data, analysis and calculation can be performed separately, and the network topology information can be determined according to the comprehensive analysis result, which improves the accuracy of the obtained network topology information. As an exemplary implementation of the present application, the first physical data in the embodiment of the present application is described by taking the received optical power of the user-side device as an example.

S22: Perform cluster analysis on the first physical data of the target user-side device to obtain one or more data groups, and the target user-side device corresponding to the first physical data of the same data group is the user-side device under the same level of optical splitting device.

It can be seen from step S21 that the feature of the first physical data used in the embodiment of the present application is that the first physical data is within the same target value range under the same level of spectrometer, so cluster analysis can be used to determine the first physical data in the same target value range. The physical data is divided into different groups. For example, the received optical power of the user-side equipment is -20dB, -19.5dB, -24dB, -23.9dB, and the clustering standard: the range of the first group [-19dB, -20dB], the range of the second group [-23.5dB, -24dB]. It can be seen that -20dB and -19.5dB can be divided into the first group, and -24dB and -23.9dB can be divided into the second group. The number of data groups can be determined according to the number of optical splitters in the network. As shown in Figure 3, if two data groups are obtained after the above cluster analysis, the data of the first data group are -19.1dB, -19.2dB, -19.3dB, -19.4dB, and the four data correspond to users Side device 221, user side device 222, user side device 223, and user side device 234, the user side device 221, user side device 222, user side device 223, and user side device 234 are regarded as user side devices under the same level of optical splitter . The second set of data obtained in the same way is -23.6dB. If the data corresponds to the user-side device 241, the user-side device 241 is taken as the user-side device under the same level of optical splitter. The above process of performing cluster analysis to obtain a data group can also be implemented by using the K-Means clustering method, which can be determined by those skilled in the art according to actual clustering requirements, which is not limited in the embodiment of the present application.

Exemplarily, FIG. 5 is a statistical diagram of the received optical power of each user-side device. After clustering analysis is used, the four groups of user-side device clustering diagrams shown in FIG. 6 can be obtained. Each group can be marked as C1, C2, C3, C4, that is, identify the user-side equipment hanging under four different optical splitters. Suppose 0_0, 0_1,0_2, 0_3, 1_0, 1_1, 1_2, 1_3 are the numbers of some different user-side devices under the same PON. If the received optical powers between 0_0, 0_1,0_2, and 0_3 are relatively similar, 1_0, 1_1, 1_2 , The received optical powers between 1_3 are relatively similar, the result of clustering will be like {'C ₁ ':[0_0,0_1,0_2,0_3],'C ₂ ':[1_0,1_1,1_2,1_3]}, By analogy, C3 and C4 can be obtained. That is, user-side devices with similar received optical power are aggregated into the same group. The aggregation result {'C ₁ ':[0_0,0_1,0_2,0_3],'C ₂ ':[1_0,1_1,1_2,1_3]} corresponds to the meaning of the topology information: 0_0,0_1,0_2,0_3 are at the same level Under the splitter, 1_0, 1_1, 1_2, 1_3 are under the same level of splitter.

S23: Classify the spectroscopic equipment to which the target user-side equipment under different levels of spectroscopy equipment belongs to obtain the level of the spectroscopic equipment to which the target user-side equipment belongs.

Based on the aggregation results, after identifying the target user-side equipment under the same level of optical splitters, the levels of the optical splitters to which the target user-side equipment belongs are classified, and the hierarchical connection relationship between the optical splitters is determined by the classification results. When dividing the level of the spectroscope to which the target user-side device belongs, the data between the data groups of the same data type can be sequentially compared with each other to obtain the data size ranking relationship between the groups of the same data type. The size sorting relationship can be obtained by adding the data in the groups to obtain the sum of the data in each group, and sorting by the sum size of the data. Then, according to the numerical change relationship of the data of this data type in the network known to those skilled in the art, the hierarchical relationship of the optical splitter to which the target user side device belongs is obtained.

As an optional implementation manner of this application, step S23 includes:

S231: Acquire representative data of the first physical data of the target user-side device in each data group.

Since the number of data contained in each type of data group formed can be multiple, a representative data can be selected from the same data group to classify the level of the spectroscope to which the target user side device belongs, which improves the target user side The efficiency of classifying the splitter to which the equipment belongs. The representative data can be the average or median of all data in each data group. Those skilled in the art can also select other data as representative data, which is not limited in the embodiment of the present application.

S232: Acquire a setting standard corresponding to the data type of the representative data in the network.

As an exemplary implementation of the present application, when the acquired first physical data of the target user-side device is the received optical power, the constraint condition corresponding to the received optical power may be: the optical splitter transmits to the user-side device according to the set splitting ratio. Output Power. For example, when the splitting ratio is 7:3, the optical splitter outputs 30% of the received optical power to the user-side equipment; it can be seen that the output power of each stage of the optical splitter in the network presents a gradual attenuation trend. Based on the above constraints, taking FIG. 1 as an example, from the first-stage optical splitter to the third-stage optical splitter in FIG. 1, the received optical power of the user-side equipment connected under each stage of the optical splitter is in a state of decreasing. For example, the output power of the OLT is 5dB. After the splitter of each level is split with a certain splitting ratio, assuming that the splitting ratio of each level of the splitter is 7:3, the ONU connected to the first-level splitter can be received. The optical power is about -15dB, the received optical power of the ONU attached to the second-level splitter is about -17dB, and the received optical power of the ONU attached to the third-level splitter is about -19dB. The fourth-level splitter is less than 1 : The attenuation of the sub-splitter of 2, so the received optical power of the ONU connected to it is about -16dB. The received optical power of the user-side equipment under the various levels of optical splitters obtained in this way can be used as a setting standard. It can be seen that the received optical power of the user-side equipment between different levels of optical splitters is attenuated, and the attenuation value can be determined according to the following formula (1):

Link attenuation value=L×a+n1×b+n2×c+d (1) where: L is the length of the optical cable; a is the attenuation per kilometer of the optical cable, for example, the attenuation a per kilometer of the 1310nm wavelength optical cable is 0.35dB; n1 is the number of splices; b is the loss of splices, where b can be 0.1dB; n2 is the number of active connectors; c is the loss of active connectors, c can be 0.3dB; d: splitter loss, such as 1:2 The splitting ratio of the spectroscope is 70%: 30%. The attenuation power of 70% output port is calculated by the following formula (2), 70% output port is used to connect to the next-stage optical splitter; the attenuated power of 30% output port is calculated by the following formula (3), and 30% output port is used for connection 1:8 sub splitter.

-10*log0.7=1.55dB (2)

-10*log0.3=5.23dB (3)

According to the link attenuation value, the optical power reaching the user-side equipment under each level of optical splitter can be obtained. For example, the received optical power of the ONU connected to the first level of optical splitter is about -15dB. After the 5dB optical power emitted by the OLT in FIG. 1 is transmitted by the sub-splitter 11, the sub-splitter 14 and the connecting fiber, it reaches the ONU under the first-stage optical splitter. The calculation process of the received optical power of the ONU is shown in formula (4). Assuming that the splitting ratio of the 1:2 sub splitter 11 of the first-stage splitter is (70%: 30%) and the output of the 1:8 sub splitter is equal:

-15dB=5-3*0.35-8*0.1-8*0.3-5.23 (1:2 splitter attenuation) -10.5 (1:8 splitter attenuation) (4)

The values of the above-mentioned optical splitters at all levels are calculated based on the structure in Figure 1. After the number of stages and splitting ratios of the splitters in the network are known, the attenuation coefficients of the splitters with different splitting ratios and the link between the splitters can be calculated The attenuation coefficient is determined, and those skilled in the art can use other calculation formulas according to actual network deployment requirements, which is not limited in this application.

When the acquired first physical data of the target user-side equipment is the optical distance, the constraints corresponding to the optical distance are: (1) the length of the optical cable between the optical splitters is greater than 200m; (2) the optical distance between the optical splitter and the user-side equipment The length of the optical cable is less than 100m; (3) If the conditions of standard (1) and standard (2) cannot be met during actual deployment, the length of the optical cable that needs to be met is the following: The length of the optical cable between the optical fiber> the longest optical cable length from the optical splitter of this level to the user-side equipment of this level + 100m. Of course, the embodiment of this application does not limit the optical distance setting standard, and those skilled in the art can set it according to the actual network deployment situation, and the relevant setting parameters can be seen in FIG. 3.

S233: According to the representative data and the setting standards corresponding to the representative data, determine the level of the spectroscopic equipment to which the target user-side equipment under different levels of spectroscopic equipment belongs.

In an exemplary embodiment of the present application, when the first physical data of the target user-side device includes optical power, the setting standard includes the number of optical splitting devices in the network and the optical splitting ratio of each optical splitting device. The optical splitting ratio is used to determine each optical power. The optical power of the user-side equipment under the first-level optical splitting equipment is different, and the optical power of the user-side equipment under the different-level optical splitting equipment is different. If the first-stage optical splitter in Figure 1 is taken as an example, the first-stage optical splitter 1 includes a 1:2 sub-splitter 11 and a 1:8 sub-splitter 14, then the splitting ratio of each stage of the optical splitter is Including the splitting ratio of the sub-splitters inside each stage of the splitter, and then the attenuation ratio of each stage of the splitter can be obtained through the splitting ratio. As for the length loss of the optical cable, the loss of the movable connector and the loss of the splice point in formula 1, the length of the optical cable, the number of active connectors and the number of splice points under the same level of optical splitter are basically the same; and the length of the optical cable, the active connector and The attenuation value of the three fusion splices is small, and the received optical power of the user-side equipment under different levels of optical splitters is mainly due to the attenuation of the optical splitter, so it can be obtained according to the number of optical splitters in the network and the number of optical splitters. The standard for setting the received optical power of the user-side equipment at all levels obtained from the split ratio. Of course, those skilled in the art can also calculate the setting standards of each level more accurately by further obtaining any one or more of the length of the optical cable, the number of movable connectors, and the number of fusion points. Among them, the light splitting ratio of each light splitting device may be equal or unequal. Take the first-stage optical splitter 1 in the four optical splitter devices shown in Figure 1 as an example. If the first-stage optical splitter 1 has a light splitting ratio of 70:30, 70% of the optical power is distributed to the next-stage optical splitter , 30% of the optical power is allocated to the user-side equipment under the splitter. The light splitting ratios of different levels of light splitting devices can be the same or different. When the ratio is not equal, the ratio can be 70:30 or 90:10. Those skilled in the art can set it according to actual network deployment needs.

Then step S233 includes:

First, match the representative data of the optical power with the optical power of the user-side device under the optical splitting device in the network.

The matching criterion may be to compare whether the representative data of the optical power is equal to the optical power of the user-side device under the optical splitting device in the network. It can also be whether the representative data of the optical power is within the standard floating range of the optical power of the user-side device under the optical splitting device in the network. Those skilled in the art can set the standard floating range according to the needs of use, which is not limited here.

Secondly, when the matching is successful, the level of the spectroscopic device corresponding to the optical power of the user-side device under the matched spectroscopic device is used as the level of the spectroscopic device to which the target user-side device belongs to the representative data of the optical power.

Taking the matched standard as the representative data of optical power in the standard floating range of the received optical power of the user-side equipment under the optical splitting device in the network as an example, when the representative data A of the received optical power of an ONU is -20dB, there are two optical splitters in the network. In each level, the received optical power range of the user side equipment is [-14dB, 16dB] and [-18dB, -20dB], and the optical splitter corresponding to the [-18dB, -20dB] received optical power range is the second level Optical splitter, the optical splitter corresponding to [-14dB, -16dB] received optical power range is the first-stage optical splitter. After matching, it can be known that the representative data A of the received optical power falls within the range of [-18dB, -20dB]. If the level of the optical splitter corresponding to [-18dB, -20dB] is the second level, then it can be determined that the representative data of the received optical power is the level of the optical splitter corresponding to the data group where -20dB is located. By analogy, the level of the optical splitter in the network corresponding to the category of other representative data can be obtained. When determining the level, the obtained representative data of the optical power can be sorted and judged in turn, or judged according to the sequence of obtaining the representative data.

In another exemplary embodiment of the present application, when the first physical data of the target user-side equipment includes the optical distance, the setting standard includes the number of optical splitting equipment levels in the network and the target-side equipment of the user-side equipment under each level of optical splitting equipment The constrained optical distance of the user side equipment under different levels of optical splitting equipment is different.

Then step S233 includes:

First, the representative data of the optical distance is matched with the constrained optical distance of the user-side equipment under each level of optical splitting equipment.

The optical distance matching standard is similar to the setting principle of the aforementioned power matching standard, and those skilled in the art can set the optical distance matching standard according to the setting principle of the aforementioned power matching standard, which will not be repeated here.

Secondly, when the matching is successful, the level of the spectroscopic device corresponding to the constrained optical distance of the matched user-side device is used as the level of the spectroscopic device to which the target user-side device belongs to the representative data of the optical distance.

Taking Figure 1 as an example, the distance from the OLT to each user-side device can be determined according to the optical distance constraints (1) and (2) of the network. Assuming that the distance from the OLT to the first-stage optical splitter 1 is a meter, the distance between the user-side equipment connected under the first-stage optical splitter and the OLT is [a,a+100]m, and the second-stage optical splitter is connected The distance from the user-side equipment to the OLT is [a+200,a+300]m, and the distance from the user-side equipment connected to the third-level optical splitter to the OLT is [a+400,a+500]m, the fourth level The distance between the user-side equipment connected under the splitter and the OLT is [a+600, a+700]m. When the representative data B of a light distance is (220+a)m, it can be determined that the splitter level corresponding to the data category of the representative data B is the second level.

In the above process of determining the optical splitter level to which the target user-side equipment of different categories belongs based on the received optical power and optical distance, either one of the determination methods can be selected, or both of the determination methods can be selected at the same time. When two judgment methods are selected for judgment at the same time, the accuracy of the judgment result is improved. When determining the level of the spectroscope to which the target user-side equipment of different categories belongs based on the two determination results, the priority of the determination criterion can be set, and the priority is determined in sequence. The solution described in the embodiment of the present application does not limit this.

S24: Obtain network topology information according to the level of the optical splitting device to which the target user-side device belongs.

By obtaining the first physical data of the target user-side equipment that is not equivalent under different levels of optical splitting equipment in the network, clustering analysis of the obtained first physical data of the same data type is performed to obtain a data group, and the first physical data of the same data group The target user-side device corresponding to the physical data is used as the user-side device under the same level of optical splitting equipment, thereby dividing the target user-side device under different levels of optical splitting equipment. Afterwards, the spectroscopic equipment to which the target user-side equipment under different levels of spectroscopy equipment belongs is classified to determine the level of the spectroscopic equipment to which the target user-side equipment belongs. By obtaining the level of the optical splitter device to which the target user-side device belongs, the topology information of the user-side device in the network can be obtained, and then the network topology information can be used to assist in locating the topology structure relationship of the user-side device in the network, and solve the network topology Information needs to rely on manual management, which is difficult to maintain, costly, low in efficiency, and inaccurate topology information may occur.

As an optional implementation manner of the present application, as shown in FIG. 7, before step S21, the method further includes: acquiring second physical data that characterizes the stability of the user-side device; taking the user-side device whose second physical data meets the target threshold as the target user Side equipment. For example, as shown in Fig. 7, before step S21, it further includes:

S211: Acquire second physical data that characterizes the stability of the user-side device.

The second physical data that characterizes the stability of the user-side device may include: optical power, optical distance, and other physical data known to those skilled in the art that can characterize the stability of the user-side device. In an exemplary embodiment of the present application, the received optical power of the user-side device is taken as an example.

S212. Determine whether the second physical data meets the target threshold. When the second physical data meets the target threshold, step S213 is executed; when the physical data characterizing the stability of the user-side device does not meet the target threshold, step S211 is executed.

Exemplarily, the method for calculating data stability includes the confidence interval algorithm, the ADF unit root test algorithm or the interquartile range algorithm. Those skilled in the art can also choose other methods that can calculate data stability according to actual needs. The embodiments of this application do not limit this. The embodiment of this application uses the confidence interval algorithm as an example to calculate the stability of the received optical power. The received optical power data uses the format of (time, optical power value) to represent the time sequence, such as (2018-01-01-00:00:00 , -20dB) means that the received optical power collected at 00: 00: 00 on January 6, 2018 is -20 dB. Calculate the mean (mean) and standard deviation (std) of the received optical power in the acquisition window. Among them, collection windows of different sizes contain different numbers of collection points, and the size of the collection window can be determined according to actual collection requirements or experience. For example, when the number of collection points in the collection window is 50, it can be that the data of 50 collection points are collected and then analyzed. When the collection time of each collection point is 15 minutes, that is, within 750 minutes The collected data of the user-side equipment is used to determine the stability of the user-side equipment. Combining the confidence (confidence) to obtain the upper confidence bound (UCL) and the lower confidence bound (LCL), if the confidence corresponding to 99% confidence is 2.58, the calculation formula is as follows:

In formula (5), mean is the average value of received optical power; n is the number of received optical power within the target time period; xi is the received optical power.

In formula (6), std is the standard deviation of the received optical power; n is the number of received optical powers within the target time period; xi is the received optical power; mean is the average received optical power obtained by formula (1).

UCL=mean+confidence*std (7)

In formula (7), UCL is the upper bound of confidence; mean is the average received optical power obtained by formula (5); confidence is the degree of confidence; std is the standard deviation of received optical power obtained by formula (6).

LCL=mean-confidence*std (8)

In equation (8), LCL is the lower bound of confidence; mean is the average value of received optical power obtained by equation (5); confidence is the degree of confidence; std is the standard deviation of received optical power obtained by equation (6).

According to the obtained UCL and LCL, determine whether the received optical power within the target time is within the confidence interval. When the received optical power within the target time is within the confidence interval, it indicates that the corresponding user-side equipment at this time meets the static and stable condition User side equipment, see Figure 8.

S213: Use the user-side device whose second physical data meets the target threshold as the target user-side device.

The first physical data of the target user-side device is acquired by taking the user-side device that meets the target threshold as the target user-side device, so as to perform subsequent division of the optical splitter level to which the target user-side device belongs.

S21: Acquire first physical data of the target user-side device in the network.

The implementation process is the same as the foregoing step S21, and will not be repeated here.

S22: Perform cluster analysis on the first physical data of the target user-side device to obtain a data group, and the target user-side device corresponding to the first physical data of the same data group is the user-side device under the same level of spectroscopic device.

The implementation process is the same as the previous step, and will not be repeated here.

By selecting the stable physical data of the target user-side equipment in the network as the theoretical data for the subsequent grade determination of the spectroscopic equipment, the accuracy of the grade determination of the spectroscopic equipment is improved, as shown in Figure 9.

As an optional implementation manner of the present application, as shown in FIG. 10, step S24 further includes:

S25: Obtain identification information of the target user-side device.

Among them, the identification information of the target user-side device is used to indicate the identity of the user-side device. It is set at the initial network setting and always represents a fixed user-side device during the change of the network topology. Each user-side device corresponds to An identification information. The embodiment of the application does not limit the category of the identification information, as long as it can be read by the analysis device. As an exemplary implementation of the present application, the identification information of the target user-side device includes port information of the user-side device in the network, and the port information can be obtained through a port information communication protocol. For example, in a PON network, the PON port information of the OLT device can be obtained in real time through the PPPoE communication protocol.

S26: Determine network topology information according to the identification information of the target user-side device and the level of the optical splitting device to which the target user-side device belongs.

Through the identification information of the user-side device and the level of the optical splitting device to which the user-side device belongs, the comprehensiveness and diversity of the obtained network topology information are further improved.

In the above embodiments, the description is mainly based on the single-chain networking mode, but the technical solution of this application is not limited to the single-chain networking mode. In the double-chain or multi-chain networking mode, other devices and methods need to be coordinated first. Distinguish each single strand. For example, when the networking mode of the network is double-stranded, after first distinguishing the single strands by cooperating with other devices and methods, according to the method recorded in the above embodiment, the ONUs attached to each single strand in the network and the ONUs to which the ONU belongs are obtained. The grade of the spectroscopic equipment.

Based on the same concept, as shown in FIG. 11, an embodiment of the present application also provides a device for acquiring network topology information, which includes:

The obtaining module 1101 is configured to obtain the first physical data of the target user-side device in the network, and the first physical data of the target user-side device under the same level of optical splitting device is within the same target value range;

The clustering module 1102 is used to perform cluster analysis on the first physical data of the target user-side device to obtain one or more data groups, and the target user-side device corresponding to the first physical data of the same data group is under the same level of spectroscopic equipment User-side equipment;

The class division module 1103 is used to classify the spectroscopic devices to which the target user-side device belongs under different levels of spectroscopic devices, to obtain the class of the spectroscopic device to which the target user-side device belongs;

The determining module 1104 is configured to determine the network topology information according to the level of the optical splitting device to which the target user side device belongs.

The apparatus for acquiring network topology information provided by the embodiment of the present application clusters the obtained first physical data of the same data type by acquiring the first physical data of the target user-side equipment that is not equivalent under different levels of optical splitting equipment in the network. Analyze and obtain the data group, and regard the target user-side device corresponding to the physical data of the same data group as the user-side device under the same level of optical splitting equipment, so as to divide the user-side equipment under different levels of optical splitting equipment. After that, classify the spectroscopic equipment to which the target user-side equipment under different levels of spectroscopy equipment belongs to determine the level of the spectroscopic equipment to which the target user-side equipment belongs, and obtain the target by obtaining the level of the spectroscopic equipment to which the target user-side equipment belongs. The topology information of the user-side equipment in the network can then be used to assist in locating the topological structure relationship of the user-side equipment in the network, which solves the need for manual management of the network topology information, which is difficult to maintain, costly, and low in efficiency. Inaccurate topology information may occur.

As an optional implementation of the present application, the determining module 1104 is configured to obtain identification information of the target user-side device; determine network topology information according to the identification information of the target user-side device and the level of the optical splitting device to which the target user-side device belongs.

As an optional implementation manner of the present application, the acquiring module 1101 is further configured to acquire second physical data that characterizes the stability of the user-side device; the user-side device whose second physical data meets the target threshold is used as the target user-side device.

As an optional implementation manner of this application, the classification module 1103 includes:

The obtaining unit is configured to obtain representative data of the first physical data of the target user-side device in each data group;

The determining unit is used to determine the level of the spectroscopic device to which the target user-side equipment under different levels of spectroscopic devices belongs according to the representative data and the setting standards corresponding to the representative data.

As an optional implementation manner of the present application, the first physical data and the second physical data include: optical power and/or optical distance.

As an optional implementation manner of this application, when the first physical data of the target user-side device includes optical power, the setting standard includes the number of optical splitting devices in the network and the optical splitting ratio of each optical splitting device. The optical splitting ratio is used to determine each optical power. The optical power of the user-side equipment under the graded optical equipment, and the optical power of the user-side equipment under different grades of optical equipment is different;

The determining unit is used to match the representative data of the optical power with the optical power of the user-side device under the optical splitting device in the network; when the matching is successful, match the optical power of the optical power splitting device corresponding to the optical power of the user-side device under the optical splitting device. The level is the level of the spectroscopic device to which the target user-side device belongs as the representative data of the optical power.

As an optional implementation manner of the present application, when the first physical data of the target user-side device includes the optical distance, the setting standard includes the number of optical splitting devices in the network and the constrained optical distance of the user-side devices under each optical splitting device. The constrained optical distances of the user-side equipment under the graded optical equipment are different;

The determining unit is used to match the representative data of the optical distance with the constrained optical distance of the user-side equipment under each level of spectroscopic equipment; when the matching is successful, the matched constrained optical distance of the user-side equipment corresponds to the optical distance of the spectroscopic equipment The level is the level of the spectroscopic device to which the target user-side device belongs as the representative data of the optical distance.

As an optional implementation manner of the present application, the identification information of the target user-side device includes port information of the target user-side device in the network;

The determining module 1104 is used to obtain the port information of the target user side device in the network through the port information communication protocol.

It should be understood that, when the device provided in FIG. 11 realizes its functions, only the division of the above-mentioned functional modules is used as an example for illustration. In actual applications, the above-mentioned functions can be allocated by different functional modules as required, that is, equipment The internal structure is divided into different functional modules to complete all or part of the functions described above. In addition, the apparatus and method embodiments provided by the above-mentioned embodiments belong to the same concept, and the specific implementation process is detailed in the method embodiments, which will not be repeated here.

Based on the same concept, an embodiment of the present application also provides a device for acquiring network topology information. As shown in FIG. 12, the device includes:

The memory 1203 and the processor 1202. The processor 1202 and the memory 1203 are connected by a communication bus 1201. The memory 1203 stores at least one instruction, and the at least one instruction is loaded and executed by the processor 1202 to implement the above-mentioned embodiments. The described method for acquiring network topology information.

It should be understood that the foregoing processor may be a central processing unit (CPU), or other general-purpose processors, digital signal processing (digital signal processing, DSP), and application specific integrated circuits. ASIC), field-programmable gate array (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor. It is worth noting that the processor may be a processor that supports an advanced reduced instruction set machine (advanced RISC machines, ARM) architecture.

Further, in an optional embodiment, the foregoing memory may include a read-only memory and a random access memory, and provide instructions and data to the processor. The memory may also include non-volatile random access memory. For example, the memory can also store device type information.

The memory may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electronic Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory. The volatile memory may be random access memory (RAM), which is used as an external cache. By way of exemplary but not limiting illustration, many forms of RAM are available. For example, static random access memory (static RAM, SRAM), dynamic random access memory (dynamic random access memory, DRAM), synchronous dynamic random access memory (synchronous DRAM, SDRAM), double data rate synchronous dynamic random access Memory (double data date SDRAM, DDR SDRAM), enhanced synchronous dynamic random access memory (enhanced SDRAM, ESDRAM), synchronous connection dynamic random access memory (synchlink DRAM, SLDRAM) and direct memory bus random access memory (direct rambus) RAM, DR RAM).

This application provides a computer program. When the computer program is executed by a computer, it can cause a processor or computer to execute the corresponding steps and/or processes in the foregoing method embodiments.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in the form of a computer program product in whole or in part. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on the computer, the processes or functions described in this application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions may be stored in a computer-readable storage medium 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, computer, server or data center via wired (such as coaxial cable, optical fiber, digital subscriber line) or wireless (such as 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 usable medium may be a magnetic medium (for example, a floppy disk, a hard disk, and a magnetic tape), an optical medium (for example, a DVD), or a semiconductor medium (for example, a solid state disk).

The above are only examples of this application and are not intended to limit this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of this application shall be included in the scope of protection of this application. Inside.

Claims

A method for acquiring network topology information, characterized in that the method includes:

Acquiring the first physical data of the target user-side device in the network, and the first physical data of the target user-side device under the same level of optical splitting device is within the same target value range;

Performing cluster analysis on the first physical data of the target user-side device to obtain one or more data groups, and the target user-side device corresponding to the first physical data of the same data group is the user-side device under the same level of optical splitting device;

Classify the spectroscopic equipment to which the target user-side equipment under different levels of spectroscopy equipment belongs to obtain the level of the spectroscopic equipment to which the target user-side equipment belongs;

Determine the network topology information according to the level of the optical splitting device to which the target user-side device belongs.
The method according to claim 1, wherein the determining the network topology information according to the level of the optical splitting device to which the target user-side device belongs includes:

Obtain identification information of the target user side device;

The network topology information is determined according to the identification information of the target user-side device and the level of the optical splitting device to which the target user-side device belongs.
The method according to claim 1 or 2, characterized in that before said obtaining the first physical data of the target user side device in the network, the method further comprises:

Acquiring second physical data that characterizes the stability of the user-side device;

The user-side device whose second physical data meets the target threshold is taken as the target user-side device.
The method according to any one of claims 1 to 3, wherein the spectroscopy equipment to which the target user-side equipment under different levels of spectroscopy equipment belongs is classified to obtain the spectroscopy equipment to which the target user-side equipment belongs The level of equipment, including:

Acquiring representative data of the first physical data of the target user-side device in each data group;

According to the representative data and the setting standards corresponding to the representative data, the level of the spectroscopic equipment to which the target user-side equipment under different levels of spectroscopic equipment belongs is determined.
The method according to claim 4, wherein the first physical data and the second physical data comprise: optical power and/or optical distance.
The method according to claim 5, wherein when the first physical data of the target user-side device includes optical power, the setting standard includes the number of levels of optical splitting equipment in the network and the optical splitting ratio of each level of optical splitting equipment , The optical splitting ratio is used to determine the optical power of the user-side equipment under each level of optical splitting equipment, and the optical power of the user-side equipment under different levels of optical splitting equipment is different;

The determining, according to the representative data and the setting standards corresponding to the representative data, the levels of the spectroscopic equipment to which the target user-side equipment under different levels of spectroscopic equipment belongs includes:

Matching the representative data of the optical power with the optical power of the user-side device under the optical splitting device in the network;

When the matching is successful, the level of the spectroscopic device corresponding to the optical power of the user-side device under the matched spectroscopic device is used as the level of the spectroscopic device to which the target user-side device belongs to the representative data of the optical power.
The method according to claim 5, wherein when the first physical data of the target user-side device includes optical distance, the setting standard includes the number of optical splitting devices in the network and the users of each optical splitting device The constrained optical distance of the side equipment, and the constrained optical distance of the user-side equipment under different levels of optical splitting equipment is different;

The determining, according to the representative data and the setting standards corresponding to the representative data, the levels of the spectroscopic equipment to which the target user-side equipment under different levels of spectroscopic equipment belongs includes:

Matching the representative data of the optical distance with the constrained optical distance of the user-side equipment under each level of optical splitting equipment;

When the matching is successful, the matched level of the spectroscopic device corresponding to the constrained optical distance of the user-side device is used as the level of the spectroscopic device to which the target user-side device belongs corresponding to the representative data of the optical distance.
The method according to any one of claims 2-7, wherein the identification information of the target user-side device includes port information of the target user-side device in the network;

The obtaining identification information of the target user side device includes:

Obtain the port information of the target user-side equipment in the network through the port information communication protocol.
A device for acquiring network topology information, characterized in that the device comprises:

An obtaining module, configured to obtain the first physical data of the target user-side device in the network, and the first physical data of the target user-side device under the same level of optical splitting device is within the same target value range;

The clustering module is used to perform cluster analysis on the first physical data of the target user-side device to obtain one or more data groups, and the target user-side device corresponding to the first physical data of the same data group is the same-level spectroscopic device User-side equipment under;

The class division module is used to classify the spectroscopic equipment to which the target user-side equipment under different levels of spectroscopic equipment belongs to obtain the class of the spectroscopic equipment to which the target user-side equipment belongs;

The determining module is used to determine the network topology information according to the level of the optical splitting device to which the target user side device belongs.
The apparatus according to claim 9, wherein the determining module is configured to obtain identification information of the target user-side device; according to the identification information of the target user-side device and the spectroscopic device to which the target user-side device belongs , Determine the network topology information.
The apparatus according to claim 9 or 10, wherein the acquisition module is further configured to acquire second physical data that characterizes the stability of the user-side device; and the user-side device whose second physical data meets the target threshold is taken as the target User-side equipment.
The device according to any one of claims 9-11, wherein the level division module comprises:

The obtaining unit is configured to obtain representative data of the first physical data of the target user-side device in each data group;

The determining unit is configured to determine the level of the spectroscopic equipment to which the target user-side equipment under different levels of spectroscopic equipment belongs according to the representative data and the setting standards corresponding to the representative data.
The apparatus according to claim 12, wherein the first physical data and the second physical data comprise: optical power and/or optical distance.
The apparatus according to claim 13, wherein when the first physical data of the target user-side device includes optical power, the setting standard includes the number of optical splitting equipment levels in the network and the optical splitting ratio of each level of optical splitting equipment , The optical splitting ratio is used to determine the optical power of the user-side equipment under each level of optical splitting equipment, and the optical power of the user-side equipment under different levels of optical splitting equipment is different;

The determining unit is configured to match the representative data of the optical power with the optical power of the user-side device under the optical splitting device in the network; when the matching is successful, the matched optical power of the user-side device under the optical splitting device corresponds to The level of the spectroscopic device is used as the level of the spectroscopic device to which the target user-side device belongs to the representative data of the optical power.
The apparatus according to claim 13, wherein when the first physical data of the target user-side equipment includes the optical distance, the setting standard includes the number of optical splitting equipment levels in the network and the user under each level of optical splitting equipment The constrained optical distance of the side equipment, and the constrained optical distance of the user-side equipment under different levels of optical splitting equipment is different;

The determining unit is configured to match the representative data of the optical distance with the constrained optical distance of the user-side equipment under each level of spectroscopic equipment; when the matching is successful, the matched constrained optical distance of the user-side equipment The level of the corresponding spectroscopic device is used as the level of the spectroscopic device to which the target user-side device belongs to the representative data of the optical distance.
The apparatus according to any one of claims 10-15, wherein the identification information of the target user-side equipment includes port information of the target user-side equipment in the network;

The determining module is configured to obtain port information of the target user-side equipment in the network through a port information communication protocol.
A device for acquiring network topology information, characterized in that the device includes:

A memory and a processor, wherein at least one instruction is stored in the memory, and the at least one instruction is loaded and executed by the processor to implement the method for acquiring network topology information according to any one of claims 1-8.
A computer-readable storage medium, wherein at least one instruction is stored in the storage medium, and the instruction is loaded and executed by a processor to realize the network topology information according to any one of claims 1-8. Obtaining method.