CN112838942B

CN112838942B - Network operation and maintenance method, electronic equipment and storage medium

Info

Publication number: CN112838942B
Application number: CN201911167712.1A
Authority: CN
Inventors: 张东; 姜磊; 宋汉增
Original assignee: Nanjing ZTE New Software Co Ltd
Current assignee: Nanjing ZTE New Software Co Ltd
Priority date: 2019-11-25
Filing date: 2019-11-25
Publication date: 2024-09-03
Anticipated expiration: 2039-11-25
Also published as: CN112838942A

Abstract

The embodiment of the invention relates to the field of communication, and discloses a network operation and maintenance method, electronic equipment and a computer storage medium. In the network operation and maintenance method, the service level agreement SLA index of the network slice is monitored, the SLA index with the monitoring value being abnormal is identified, the root index with the monitoring value being the abnormal SLA index is obtained, the root index refers to the performance index of the virtual network function VNF module with the influence on the SLA index in the network slice, the root index with the monitoring value being abnormal is screened from the root indexes with the monitoring value being the abnormal SLA index, and the network slice is optimized according to the root index with the monitoring value being abnormal. The invention can realize intelligent optimization of network slicing, namely, intelligent network operation and maintenance, and ensure the quality of the network.

Description

Network operation and maintenance method, electronic equipment and storage medium

Technical Field

The embodiment of the invention relates to the field of communication, in particular to a network operation and maintenance method, electronic equipment and a storage medium.

Background

In order for the network system to operate properly, network operation and maintenance are needed. In the traditional network, because the faults are often caused by special equipment, the special equipment can be fed back quickly in a fault alarming mode, and operation and maintenance personnel use alarming as a core to perform operation and maintenance, so that the normal operation of a network system is ensured. With the development of the fifth Generation mobile communication technology (5 th-Generation, abbreviated as 5G), network slicing plays a key role, which allows operators to cut a single physical infrastructure into multiple virtual end-to-end networks, each of which can obtain logically independent network resources, and each of which can be insulated from each other. That is, the virtual network functions in the 5G network replace dedicated devices in the traditional network, and the network failure is typically no longer a failure of real physical hardware.

In the process of implementing the present invention, the inventors have found that at least the following problems exist in the prior art: since the fault in the 5G network is usually no longer a fault of the real physical hardware, the conventional network operation and maintenance mode is no longer suitable for the 5G network, and it is difficult to ensure the normal operation of the 5G network system by adopting the operation and maintenance mode of the conventional network.

Disclosure of Invention

The embodiment of the invention aims to provide a network operation and maintenance method, electronic equipment and a storage medium, which can intelligently optimize the performance of network slicing and ensure the network quality.

In order to solve the above technical problems, an embodiment of the present invention provides a network operation and maintenance method, including: monitoring Service Level Agreement (SLA) indexes of a network slice, identifying the SLA indexes with abnormal monitoring values, acquiring the root indexes of the SLA indexes with abnormal monitoring values, wherein the root indexes refer to performance indexes of Virtual Network Function (VNF) modules which have influence on the SLA indexes in the network slice, screening the root indexes with abnormal monitoring values from the root indexes with abnormal monitoring values, and optimizing the network slice according to the root indexes with abnormal monitoring values.

The embodiment of the invention also provides electronic equipment, which comprises: at least one processor, and a memory communicatively coupled to the at least one processor. The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the network operation and maintenance method.

The embodiment of the invention also provides a computer readable storage medium which stores a computer program, and the computer program realizes the network operation and maintenance method when being executed by a processor.

Compared with the prior art, the embodiment of the invention monitors the SLA index of the network slice, screens the root index with the abnormal monitoring value from the root indexes with the abnormal monitoring value, and optimizes the network slice according to the root index with the abnormal monitoring value. Namely, the embodiment of the invention automatically screens out the root indicator with the monitoring value being abnormal, and does not need to display the SLA indicator to enable operation and maintenance personnel to analyze, so that data analysis is intelligent, intelligent optimization of network slicing is realized, and the quality of the network is ensured.

In addition, the method for obtaining the root index of the SLA index with abnormal monitoring value comprises the following steps: and acquiring the root index of the SLA index with the monitoring value being abnormal according to the corresponding relation between the pre-acquired SLA index and the root index. The embodiment provides a specific way for quickly obtaining the root index of the SLA index with abnormal monitoring value.

In addition, the pre-acquisition mode of the corresponding relation between the SLA index and the root index is as follows: and analyzing a performance model adopted in the network slice operation process to obtain the corresponding relation between the SLA index and the root index. The embodiment provides a method for obtaining the corresponding relation between the SLA index and the root cause index, and the obtained corresponding relation between the SLA index and the root cause index can truly reflect the influence relation among the indexes in the service scene where the network slice is located, so that the abnormal root cause in the network slice can be conveniently and accurately found.

In addition, the monitoring value of the root index being abnormal means that the monitoring value of the root index is not in the normal value range of the root index; the normal value range of the root index is preset by the following modes: and acquiring a plurality of historical positive samples of the SLA index, wherein each historical positive sample comprises a normal historical monitoring value of the SLA index and a historical monitoring value of the root cause index under the normal condition of the SLA index, and setting a normal value range of the root cause index according to the historical monitoring values of the root cause indexes in the plurality of historical positive samples. The embodiment provides a way for screening the root indexes with abnormal monitoring values, and the normal value range of the root indexes is analyzed by using the historical positive samples, so that the finally set normal value range accords with the actual situation.

In addition, in the normal value range of the root indicator, according to the historical monitoring values of the root indicators in the plurality of historical positive samples of the SLA indicator, if the SLA indicator is a plurality of the root indicators, the normal value range of the root indicator under each SLA indicator is determined according to the historical monitoring values of the root indicators in the plurality of historical samples of each SLA indicator, and for each root indicator, the intersection of the normal value ranges of the root indicators under each SLA indicator is set as the normal value range of the root indicator. The embodiment provides an optimization mode for the normal value range of the root index under the condition that the same root index has influence on a plurality of SLA indexes.

In addition, optimizing the network slice according to the root indicator of the monitoring value being abnormal comprises the following steps: if the monitoring value is a plurality of abnormal root indexes, analyzing the influence degree of the plurality of abnormal root indexes on the SLA index with the abnormal monitoring value, selecting the root indexes with the abnormal monitoring value meeting the preset condition as the root indexes to be adjusted, and optimizing the network slice based on the monitoring value of the root indexes to be adjusted. In the embodiment, from a plurality of root indexes with abnormal monitoring values, determining the root index with the greatest influence on the SLA index according to the weight, and taking the root index as the root index to be adjusted; compared with the method for optimizing the network slice according to each root indicator with abnormal monitoring value, the method has the advantages that the optimization speed is higher, and the root indicator with the largest influence on the SLA indicator is selected, so that the optimization accuracy is high; i.e. so that the optimization of the network slices is both fast and accurate.

In addition, the influence degree is characterized as the weight of the root indicator to the SLA indicator, the influence degree of a plurality of root indicators with abnormal monitoring values to the SLA indicator with abnormal monitoring values is analyzed, the root indicator with abnormal monitoring values, the influence degree of which meets the preset condition, is selected as the root indicator to be adjusted, and the method comprises the following steps: and acquiring the weights of a plurality of root indexes with abnormal monitoring values to SLA indexes with abnormal monitoring values, and selecting the root index with the largest weight as the root index to be adjusted. In this embodiment, the root indicator with the largest monitoring value of weight is used as the root indicator to be adjusted, so that the root indicator which most affects the SLA indicator with the largest monitoring value is screened out, and the basis for optimizing the network slice is more reliable.

In addition, the method for obtaining the weights of a plurality of root indexes with abnormal monitoring values to SLA indexes with abnormal monitoring values and selecting the root index with the largest weight as the root index to be adjusted comprises the following steps: and acquiring the weights of the plurality of abnormal root indexes with the monitoring value as the abnormal SLA indexes according to the corresponding relation between the root indexes and the weights of the SLA indexes, and selecting the root index with the largest weight as the abnormal root index to be adjusted. The embodiment provides a way capable of rapidly acquiring the weight of the root indicator with the abnormal monitoring value to the SLA indicator with the abnormal monitoring value.

In addition, the correspondence between the root index and the weight of the root index to the SLA index is obtained by: and acquiring a plurality of history samples of the SLA index, wherein each history sample comprises a history monitoring value of the SLA index and a history monitoring value of a root index of the SLA index, and obtaining the corresponding relation between the root index and the weight according to the plurality of history samples of the SLA index. The embodiment provides a way capable of intelligently obtaining the corresponding relation between the root index and the weight of the root index to the SLA index.

In addition, optimizing the network slice according to the root indicator of the monitoring value being abnormal comprises the following steps: and generating an operation instruction for the target VNF module according to the root indicator with the abnormal monitoring value. The root index with the abnormal monitoring value is the performance index of the target VNF module. And if a plurality of identical operation instructions for the target VNF module exist in the first time window, performing function adjustment on the target VNF module according to one of the operation instructions. In this embodiment, if the same plurality of operation instructions for the target VNF module exist in the first time window, one of the operation instructions is selected to perform function adjustment on the target VNF module, so that compared with the case that all the generated operation instructions are applied to the target VNF module, unnecessary operation instructions can be avoided from affecting optimization of network slices, and overhead in resource adjustment and parameter configuration can be reduced.

In addition, optimizing the network slice according to the root indicator of the monitoring value being abnormal comprises the following steps: and generating an operation instruction for the target VNF module according to the root indicator with the abnormal monitoring value. The root index with the abnormal monitoring value is the performance index of the target VNF module. And if two opposite operation instructions exist in the second time window for the target VNF module, selecting one of the operation instructions to perform function adjustment on the target VNF module. The two opposite operation instructions refer to two operation instructions that play opposite roles in adjusting the function of the target VNF module. In this embodiment, if two opposite operation instructions for the target VNF module exist in the second time window, one of the two opposite operation instructions is selected to perform function adjustment on the target VNF module, so that compared with the case that all the generated operation instructions are applied to the target VNF module, unnecessary operation instructions can be avoided from affecting optimization of network slices, and overhead in resource adjustment and parameter configuration can be reduced.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

FIG. 1 is a flow chart of a network operation and maintenance method in a first embodiment of the present invention;

FIG. 2 is a schematic diagram of an orchestration definition slice and SLA indicators according to a first embodiment of the present invention;

FIG. 3 is a schematic diagram of a graph of index relationships in a first embodiment of the invention;

FIG. 4 is a flow chart of a network operation and maintenance method according to a second embodiment of the present invention;

FIG. 5 is a flow chart of a network operation and maintenance method according to a third embodiment of the present invention;

FIG. 6 is a flow chart of a network operation and maintenance method according to a fourth embodiment of the present invention;

FIG. 7 is a flow chart of a network operation and maintenance method according to a fifth embodiment of the present invention;

FIG. 8 is another flow chart of a network operation and maintenance method according to a fifth embodiment of the present invention;

Fig. 9 is a schematic structural view of an electronic device in a sixth embodiment of the present invention.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the embodiments of the present application will be described in detail below with reference to the accompanying drawings. However, it will be understood by those of ordinary skill in the art that in various embodiments of the present application, numerous specific details are set forth in order to provide a thorough understanding of the present application. The claimed application may be practiced without these specific details and with various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not be construed as limiting the specific implementation of the present application, and the embodiments can be mutually combined and referred to without contradiction.

A first embodiment of the present invention relates to a network operation and maintenance method, which can be applied to a server, for example: the server is not limited herein. In this embodiment, the server identifies the monitored value of the network slice as the abnormal SLA index, obtains the root indicator of the monitored value as the abnormal SLA index, then screens the root indicator of the monitored value as the abnormal SLA index from the root indicators of the monitored value as the abnormal SLA index, and optimizes the network slice according to the root indicator of the monitored value as the abnormal SLA index.

The implementation details of the network operation method of this embodiment are specifically described below, and the following details are provided for understanding only, and are not necessary to implement this embodiment. The specific flow is shown in fig. 1, and includes:

And step 101, monitoring service level agreement SLA indexes of the network slices, and identifying SLA indexes with abnormal monitoring values.

In one specific example, the server will monitor the SLA index of the network slice at a time and store the monitored SLA index for later analysis when needed. The SLA index includes delay, throughput, number of users, and the like, which are not limited herein. During the monitoring process, the server may identify the monitored value as an abnormal SLA index. The criterion for determining whether the monitored value of the SLA index is abnormal may be set according to actual situations, for example: and setting an early warning threshold value for the SLA index, and if the monitored value of the SLA index exceeds the early warning threshold value, judging that the monitored value is the abnormal SLA index by the server. It should be noted that, in practical application, different pre-warning thresholds may be set for different SLA indexes.

Step 102, acquiring a root indicator of the SLA indicator with the monitoring value being abnormal.

In a specific example, the root indicator may refer to a performance indicator of a virtual network function VNF module in the network slice that has an impact on the SLA indicator, that is, the root indicator may affect the SLA indicator. Assuming that the SLA indicator refers to a time delay, the root indicator of the monitored value being an abnormal SLA indicator may also be the time delay.

In a specific example, the server obtains the root indicator of the SLA indicator with the monitoring value being abnormal according to the corresponding relation between the pre-obtained SLA indicator and the root indicator. The pre-acquisition mode of the corresponding relation between the SLA index and the root index can be obtained by analyzing a performance model adopted in the network slice by a server. When the network slice is managed and arranged, operation and maintenance personnel can select proper communication service types and templates corresponding to the communication service types according to the service requirements, wherein the templates comprise all performance models related to the service, and the performance models are provided with SLA index quality requirements, early warning thresholds, calculation formulas and the like of the network slice. Wherein the communication service types include: enhanced mobile broadband (Enhanced Mobile Broadband, eMBB) communications, very reliable low-latency communications (Ultra Reliable Low Latency Communications, uRLLC), mass machine class communications (MASSIVE MACHINE TYPE of Communication, mMTC) and the like, without limitation. In addition, each network slice includes at least a radio sub-slice, a bearer sub-slice, and a core network sub-slice to adapt to various types of services and applications. As shown in fig. 2, the orchestration definition slice and the SLA index, and the operator selects the communication service type to be eMBB according to the service requirement, then the corresponding network slice type is eMBB. Taking the time delay in the SLA index as an example, the quality requirement set in FIG. 2 is less than 10ms, the early warning threshold is not less than 8ms, and the calculation formula is [ core network sub-slice ] + [ wireless sub-slice ] + [ carrier network sub-slice ] + [ time delay ]. It should be noted that, the SLA index quality requirement, the early warning threshold, the calculation formula and the like of the network slice may be set according to the actual situation, and the above is only illustrative. When the service is opened, in the process of operating and maintaining the network slice, the server can acquire the information related to the performance model of the network slice and all resource layers below the network slice, and find the corresponding relation between the SLA index and the root index according to the acquired information. In practical application, the corresponding relationship between the SLA index and the root index may be represented by an index relationship diagram, for example, in fig. 3, the network slice is eMBB type, and the SLA index is time delay.

And 103, screening out the root indexes with the monitoring value of abnormality from the root indexes with the monitoring value of the SLA index of abnormality.

In a specific example, if the server monitors that the monitored value of the SLA index is abnormal, the root indicator having an influence on the SLA index can be found according to the SLA index, and then the server screens all the obtained root indicators for the root indicator with the monitored value being abnormal. The monitoring value of the root cause indicator being abnormal may mean that the monitoring value of the root cause indicator is not within the normal value range of the root cause indicator. The normal value range of the root cause indicator can be preset by the following modes: the server acquires a plurality of historical positive samples of SLA indexes; each history positive sample comprises a normal history monitoring value of an SLA index and a history monitoring value of a root index under the normal condition of the SLA index; after the server acquires the historical positive samples, the normal value range of the root indicators is set according to the historical monitoring values of the root indicators in the historical positive samples. More preferably, if the number of the SLA indexes is multiple, the server determines a normal value range of the root indexes under each SLA index according to the historical monitoring values of the root indexes in the historical samples, and for each root index, the server sets an intersection of the normal value ranges of the root indexes under each SLA index as the normal value range of the root indexes; by reducing the screening range in this way, the root indexes with abnormal monitoring values can be screened out more accurately. After the setting of the normal value range of the root indicators is completed, the server can screen the root indicators with monitoring values not in the normal value range from the root indicators with monitoring values being abnormal SLA indicators.

In a specific example, after the server finds the root indicator of the SLA indicator with the abnormal monitoring value according to the indicator relation diagram, the server screens the root indicator with the abnormal monitoring value from the root indicator, that is, locates the root indicator causing the problem of the abnormal monitoring value of the SLA indicator. In this embodiment, the root indexes causing the problems are reversely analyzed and located, that is, the root indexes of the SLA indexes with abnormal monitoring values are found first, and then the root indexes with abnormal monitoring values are screened out, so that the efficiency of locating the root indexes causing the problems is improved, and the cost of network operation and maintenance can be reduced.

And 104, optimizing the network slice according to the root indicator with the abnormal monitoring value.

In a specific example, it is assumed that the server screens out the root indicators with abnormal monitoring values from the root indicators with abnormal SLA indicators, and the server can locate the corresponding VNF module according to the root indicators with abnormal monitoring values, because the root indicators refer to performance indicators of the VNF module with virtual network function affecting the SLA indicators in the network slice. Further, the server may analyze and determine a system type for managing the VNF module, and optimize the network slice in combination with the system type. The system types include management and orchestration (MANAGEMENT AND Orchestration, abbreviated as MANO) systems, network element management systems (ELEMENT MANAGEMENT SYSTEM, abbreviated as EMS), and the like, which are not limited herein. If the VNF module is managed by a MANO system, the relevant system may deploy the VNFC because the functionality of the VNF module is implemented by several virtualized network function module components (Virtualisted Network Function Component, abbreviated as VNFC), such as: the number of VNFCs is increased or decreased, and is not limited herein. If the VNF module is managed by the EMS, the relevant system may adjust configuration parameters such as: the device configuration is reduced and is not limited herein. That is, according to the embodiment, according to the root indicator that the monitoring value is abnormal, and according to different management systems, the network slice is optimized, so as to improve or reduce the service carrying capacity of the VNF module, thereby improving the network quality or releasing the idle resources.

In this embodiment, the server monitors the SLA index of the network slice, automatically analyzes and obtains the root index of the SLA index whose monitored value is abnormal, so as to find the root index affecting the SLA index whose monitored value is abnormal. And then screening out the root indexes with abnormal monitoring values from the root indexes with abnormal monitoring values of SLA indexes, thereby intelligently positioning the root indexes causing the problem of abnormal monitoring values of the SLA indexes, and finally optimizing the network slice. The embodiment realizes intelligent optimization of network slicing, namely intelligent network operation and maintenance, and can ensure network quality.

A second embodiment of the invention relates to a network operation and maintenance method. The second embodiment is substantially identical to the first embodiment, with the main differences: the second embodiment of the present invention provides a specific way to optimize a network slice according to a root indicator with an abnormal monitoring value, that is, a root indicator with an abnormal monitoring value, whose influence degree satisfies a preset condition, is selected from a plurality of root indicators with an abnormal monitoring value as a root indicator to be adjusted, and finally, the network slice is optimized based on the monitoring value of the root indicator to be adjusted.

The implementation details of the network operation method of this embodiment are specifically described below, and the following details are provided for understanding only, and are not necessary to implement this embodiment. The specific flow is shown in fig. 4, and includes:

step 401, monitoring service level agreement SLA index of the network slice, and identifying the monitored value as abnormal SLA index. Similar to step 101, the description is omitted here.

Step 402, obtaining a root indicator of the SLA indicator with the monitoring value being abnormal. Similar to step 102, the description is omitted here.

Step 403, screening out the root indexes with abnormal monitoring values from the root indexes with abnormal monitoring values of SLA indexes. Similar to step 103, the details are not repeated here.

It should be noted that, the following steps 404 and 405 may be specific implementations of the step 104.

Step 404, if the monitored values are a plurality of abnormal root indicators, analyzing the influence degree of the plurality of abnormal root indicators on the monitored values are abnormal SLA indicators, and selecting the abnormal root indicator with the influence degree meeting the preset condition as the root indicator to be adjusted.

In one specific example, the degree of impact may be characterized by the weight of the root indicator to the SLA indicator. The server can find out the weight of the root indicator with abnormal monitoring value to the SLA indicator with abnormal monitoring value according to the corresponding relation between the root indicator and the weight of the root indicator to the SLA indicator, and takes the root indicator with the largest weight as the root indicator to be adjusted. The corresponding relation between the root index and the weight of the root index to the SLA index can be obtained by the following method: and the server obtains the corresponding relation according to the monitored historical sample of the SLA index, namely the historical monitoring value of the SLA index and the historical monitoring value of the root index thereof.

And step 405, optimizing the network slice based on the monitored value of the root index to be adjusted.

In a specific example, assuming that there is a root indicator with the greatest monitored value of weight as an anomaly, the server may locate the VNF module corresponding to the root indicator to be adjusted. Further, the server may analyze the system managing the VNF module and optimize the network slice in connection with the system type. The system types include MANO system, EMS, etc., and will not be described herein. Specific examples of the method step 104 for optimizing the network slice in combination with the system type are described in detail, and are not described herein.

In this embodiment, if the monitored values are a plurality of abnormal root indexes, the server analyzes the influence degree of the plurality of abnormal root indexes on the monitored values of the abnormal SLA indexes, selects the root index with the abnormal monitored value, the influence degree of which meets the preset condition, as the root index to be adjusted, and finally optimizes the network slice based on the monitored value of the root index to be adjusted. According to the embodiment, the root indexes causing the problems are reversely analyzed and positioned, so that the efficiency of the root indexes causing the problems are improved, and especially when a plurality of root indexes with abnormal monitoring values exist, the most main root indexes can be rapidly positioned, the network slice is more intelligently and accurately optimized, and therefore intelligent network operation and maintenance are realized.

A third embodiment of the invention relates to a network operation and maintenance method. The third embodiment is substantially identical to the first embodiment, with the main difference that: in a third embodiment of the present invention, after screening out the root indicators of the SLA indicator whose monitoring value is abnormal from the root indicators of the SLA indicator whose monitoring value is abnormal, the server generates an operation instruction to the target VNF module according to the root indicator whose monitoring value is abnormal. The root index with the abnormal monitoring value is the performance index of the target VNF module. And if a plurality of identical operation instructions for the target VNF module exist in the first time window, performing function adjustment on the target VNF module according to one of the operation instructions.

The implementation details of the network operation method of this embodiment are specifically described below, and the following details are provided for understanding only, and are not necessary to implement this embodiment. The specific flow is shown in fig. 5, and includes:

Step 501, monitoring service level agreement SLA index of the network slice, and identifying the monitored value as abnormal SLA index. Similar to step 101, the description is omitted here.

Step 502, obtaining a root indicator of the SLA indicator with the monitoring value being abnormal. Similar to step 102, the description is omitted here.

Step 503, screening out the root indexes with abnormal monitoring values from the root indexes with abnormal monitoring values of SLA indexes. Similar to step 103, the details are not repeated here.

It should be noted that, the following steps 504 and 505 may be specific implementations of step 104.

And step 504, generating an operation instruction for the target VNF module according to the root indicator with the abnormal monitoring value.

In a specific example, the root indicator that the monitored value is abnormal may be a performance indicator of the target VNF module. If the monitored value of the root indicator of the SLA indicator with the monitored value being abnormal is not in the normal value range of the root indicator, the server takes the monitored value as the root indicator with the monitored value being abnormal. Because the root index refers to the performance index of the VNF module that affects the SLA index, the server may find a corresponding target VNF module according to the root index with the monitoring value being abnormal, and generate an operation instruction for the target VNF module.

In step 505, if there are multiple identical operation instructions for the target VNF module within the first time window, performing function adjustment on the target VNF module according to one of the operation instructions.

In a specific example, assuming that the server finally locates to the same target VNF module according to SLA indexes with abnormal monitoring values, and generates a plurality of operation instructions for reducing device configuration parameters of the target VNF module at different time points within the first time window 1s, the server may select one operation instruction from the same operation instructions and send the operation instruction to the relevant system to perform an action for reducing device configuration parameters. It should be noted that, in this section of the illustration, the first time window is 1s, but in practical application, the server may locate the same target VNF module according to SLA indexes with abnormal monitoring values, and generate multiple identical operation instructions for the target VNF module at the same time point, and then the server may select one operation instruction from the identical operation instructions to execute the action of reducing the device configuration parameters.

In a specific example, assuming that the server finally locates to the same target VNF module according to the SLA index with the same monitoring value being abnormal, and generates a plurality of operation instructions for reducing the device configuration parameters of the target VNF module at different time points within the first time window 1s, the server may select one operation instruction from the same operation instructions and send the operation instruction to the relevant system so as to execute the action of reducing the device configuration parameters. In this embodiment, the network slice is optimized by generating the operation instruction. And if the same plurality of operation instructions for the target VNF module exist in the first time window, the server selects one of the operation instructions to perform function adjustment on the target VNF module. Since the same operation instruction for the same target VNF module is generated in the first time window, only one of the operation instructions may be selected to act on the target VNF module, so that unnecessary operation instructions may be avoided from affecting optimization of the network slice, for example: in the first time window, when a VNF module receives the same operation instruction when executing the operation instruction, the same operation instruction may be considered as unnecessary to be executed, that is, since the operation instruction which is unnecessary to be executed may be generated in the network operation and maintenance process, the situation may increase the overhead of the network operation and maintenance, and the embodiment may implement intelligent network operation and maintenance.

A fourth embodiment of the invention relates to a network operation and maintenance method. The fourth embodiment is substantially the same as the third embodiment, with the main difference that: in a fourth embodiment of the present invention, after generating an operation instruction for a target VNF module according to a root indicator with an abnormal monitoring value, if two opposite operation instructions for the target VNF module exist in a second time window, the server selects one of the two opposite operation instructions to perform function adjustment on the target VNF module.

The implementation details of the network operation method of this embodiment are specifically described below, and the following details are provided for understanding only, and are not necessary to implement this embodiment. The specific flow is shown in fig. 6, and includes:

And step 601, monitoring Service Level Agreement (SLA) indexes of the network slices, and identifying SLA indexes with abnormal monitoring values. Similar to step 101, the description is omitted here.

Step 602, obtaining a root indicator of the SLA indicator with the monitoring value being abnormal. Similar to step 102, the description is omitted here.

And 603, screening out the root indexes with the monitoring value of abnormality from the root indexes with the monitoring value of the SLA index of abnormality. Similar to step 103, the details are not repeated here.

In step 604, an operation instruction for the target VNF module is generated according to the root indicator whose monitoring value is abnormal. Similar to step 504, a detailed description is omitted.

In step 605, if two opposite operation instructions exist in the second time window for the target VNF module, one of the two opposite operation instructions is selected to perform function adjustment on the target VNF module.

In a specific example, the two opposite operation instructions may refer to two operation instructions that play opposite roles in adjusting the function of the target VNF module, and the second time window may refer to an operation and maintenance period. Assume that A, B operation instructions to the target VNF module are generated within operation cycle 1 s. Wherein, the operation instruction a represents increasing the number of VNFCs, and the operation instruction B represents decreasing the number of VNFCs, then the server may select the operation instruction a or B to perform functional adjustment on the target VNF module, that is, increase the number of VNFCs or decrease the number of VNFCs, so as to implement optimization on the relative operation instruction generated in the operation and maintenance period. Note that the objects of increase and decrease are the same VNFC, that is, assuming that operation instruction a represents increasing VNFC-a, operation instruction B represents decreasing VNFC-a. More preferably, when the operation instruction is selected, the number of the VNFCs is guaranteed to be increased in preference to the number of the VNFCs, so that the situation that the number of the VNFCs is increased after being reduced can be avoided as much as possible, namely, the phenomenon of periodical change of resources, the power consumption of resource allocation in the intelligent network operation and maintenance process can be reduced, and the resource reuse degree is improved.

In this embodiment, if two opposite operation instructions of the target VNF module exist in the second time window, the server selects one of the operation instructions to perform function adjustment on the target VNF module, so that unnecessary operation instructions can be avoided from affecting optimization of network slices, that is, a situation that the VNF module receives the opposite operation instruction when executing a certain operation instruction in the second time window is avoided, and intelligent network operation and maintenance is implemented.

A fifth embodiment of the invention relates to a network operation and maintenance method. The fifth embodiment is substantially the same as the third embodiment, with the main difference that: in a fifth embodiment of the present invention, if there are multiple identical operation instructions for the target VNF module in the first time window, the server selects one of the operation instructions, detects whether there are two opposite operation instructions for the target VNF module in the second time window, and if there are two opposite operation instructions for the target VNF module, selects one of the operation instructions to perform function adjustment for the target VNF module, where the second time window is greater than or equal to the first time window.

The implementation details of the network operation method of this embodiment are specifically described below, and the following details are provided for understanding only, and are not necessary to implement this embodiment. The specific flow is shown in fig. 7, and includes:

And step 701, monitoring service level agreement SLA indexes of the network slice, and identifying the monitored value as an abnormal SLA index. Similar to step 101, the description is omitted here.

Step 702, obtaining a root indicator of the SLA indicator with the monitoring value being abnormal. Similar to step 102, the description is omitted here.

And 703, screening out the root indexes with the monitoring value of abnormality from the root indexes with the monitoring value of abnormality SLA indexes. Similar to step 103, the details are not repeated here.

Step 704, generating an operation instruction for the target VNF module according to the root indicator with the monitoring value being abnormal. Similar to step 504, a detailed description is omitted.

Step 705, determining whether there are multiple identical operation instructions to the target VNF module within the first time window. If there are multiple identical operation instructions to the target VNF module within the first time window, then step 706 is entered; otherwise, step 707 is entered.

In a specific example, it is assumed that there is an operation instruction to the target VNF module within the first time window: a1, A2, B, wherein A1, A2 are the same operation instructions, such as: the number of VNFCs is increased, and it is not limited herein, and A1 and A2 are added to the same VNFCs. When the server detects that the same operation instructions A1, A2 exist, step 706 is entered.

In a specific example, it is assumed that within a first time window, mutually different operation instructions for the target VNF module are present: A. b, C, such as: operation command a indicates increasing the number of VNFCs, operation command B indicates decreasing the number of VNFCs, and operation command C indicates decreasing the device configuration parameters. In this case, step 707 is entered after step 705 is completed.

Step 706, selecting an operation instruction from a plurality of identical operation instructions. Step 706 is completed and the process proceeds to step 707.

In a specific example, it is assumed that there is an operation instruction to the target VNF module within the first time window: a1, A2, B, wherein A1, A2 are the same operation instructions, such as: all represent increasing numbers of VNFCs, and are not limited herein. In this case, the server selects an operation instruction A1 or A2 from the operation instructions A1, A2, and proceeds to step 707.

Step 707, determining whether two opposite operation instructions to the target VNF module exist within the second time window. If two opposite operation instructions for the target VNF module exist within the second time window, proceeding to step 708; otherwise, step 709 is entered.

In a specific example, the second time window may be greater than or equal to the first time window. The two opposite operation instructions may refer to two operation instructions that react on the functional adjustment of the target VNF module. Assume that there is an operation instruction to the target VNF module within the second time window: a1, A2, B, wherein A1, A2 are the same operation instructions, such as: each represents an operation instruction to increase the number of VNFCs, B being opposite to A1 and A2, such as: indicating that there are two opposite operating instructions to the target VNF module within the second time window, step 707 ends and step 708 is entered. Note that, A1 and A2 represent increasing the same VNFC, and two opposite operation instructions, taking operation instructions A1 and B as an example, assuming that operation instruction A1 represents increasing VNFC-a, operation instruction B represents decreasing VNFC-a.

In a specific example, it is assumed that there is an operation instruction to the target VNF module within the second time window: a1, A2, wherein A1, A2 are the same operation instructions, that is, there are no two opposite operation instructions to the target VNF module within the second time window, step 709 is entered after the end of step 707.

In step 708, one of the operation instructions is selected to perform function adjustment on the target VNF module.

In a specific example, it is assumed that there is an operation instruction to the target VNF module within the second time window: a1, A2, B1, B2, wherein A1 and A2, B1 and B2 are the same operation instructions, respectively, and A1 and A2 represent a class a operation instruction, such as: indicating an increase in the number of VNFCs, B1 and B2 indicate B class operation instructions such as: indicating a reduction in the number of VNFCs. In addition, the type a operation instruction and the type B operation instruction are two opposite operation instructions, and then the server selects one of the type a operation instruction and the type B operation instruction to perform functional adjustment on the target VNF module, that is, increase the number of VNFCs or decrease the number of VNFCs.

In step 709, the function of the target VNF module is adjusted according to the operation instruction.

In a specific example, it is assumed that there is an operation instruction to the target VNF module within the second time window: a1, BC1, A1 and C1 represent different operation instructions, and are not relative operation instructions, then the server performs a functional adjustment on the target VNF module according to the operation instructions A1 and C1. It should be noted that, in this embodiment, whether multiple identical operation instructions to the target VNF module exist in the first time window is determined first, and then whether a relative operation instruction to the target VNF module exists in the second time window is determined, where the second time window may be greater than or equal to the first time window, but in practical application, the order of determination may also be adjusted, that is, whether two opposite operation instructions to the target VNF module exist in the second time window is determined first, and then whether multiple identical operation instructions to the target VNF module exist in the first time window is determined, where the first time window may be greater than or equal to the second time window. In this case, after the server performs steps 701 to 704, as shown in fig. 8, it starts to perform the following steps:

In step 805, it is determined whether two opposite operation instructions for the target VNF module exist within the second time window. If two opposite operation instructions exist for the target VNF module within the second time window, then step 806 is entered; otherwise, step 807 is entered. Similar to step 707, further description is omitted herein.

Step 806 selects one of the two opposing operating instructions. Step 807 is entered after the end of step 806.

In a specific example, it is assumed that there is an operation instruction to the target VNF module within the second time window: a1, B, wherein A1 may represent an increase in the number of VNFCs, without limitation. In addition, the operation instruction B is an operation instruction opposite to the operation instruction A1, such as: indicating a reduction in the number of VNFCs. In this case, the server selects one of the operation instructions A1 and B, and proceeds to step 707.

In step 807, it is determined whether there are multiple identical operation instructions to the target VNF module within the first time window. If there are multiple identical operation instructions to the target VNF module within the first time window, then step 808 is entered; otherwise, step 809 is entered. Similar to step 705, details are not provided here.

In step 808, one of the operation instructions is selected to perform function adjustment on the target VNF module.

In a specific example, it is assumed that there is an operation instruction to the target VNF module within the second time window: a1, A2, wherein A1, A2 are the same operation instructions, such as: all represent an increase in the number of VNFCs. The server selects the operation instruction A1 or A2 to perform functional adjustment on the target VNF module, i.e. increase the number of VNFCs.

Step 809, performing function adjustment on the target VNF module according to the operation instruction. Similar to step 709, further description is omitted herein.

In this embodiment, the server may select one or one of the same, opposite operation instructions as far as possible to act on the target VNF module. Because the operation instructions of the acting and target VNF modules are filtered, the embodiment can avoid the influence of unnecessary operation instructions on the optimization of network slices, reduce the expenditure on resource adjustment and parameter configuration, and realize intelligent network operation and maintenance.

The above steps of the methods are divided, for clarity of description, and may be combined into one step or split into multiple steps when implemented, so long as they include the same logic relationship, and they are all within the protection scope of this patent; it is within the scope of this patent to add insignificant modifications to the algorithm or flow or introduce insignificant designs, but not to alter the core design of its algorithm and flow.

A sixth embodiment of the present invention relates to a server, as shown in fig. 9, including: at least one processor 901, and a memory 902 communicatively coupled to the at least one processor. The memory 902 stores instructions executable by the at least one processor 901, where the instructions are executable by the at least one processor 901 to enable the at least one processor 901 to perform the network operation and maintenance method described above.

Where the memory 902 and the processor 901 are connected by a bus, the bus may comprise any number of interconnected buses and bridges, the buses connecting the various circuits of the one or more processors 901 and the memory 902 together. The bus may also connect various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or may be a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor 901 is transmitted over a wireless medium via an antenna, which further receives the data and transmits the data to the processor 901.

The processor 901 is responsible for managing the bus and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And memory 902 may be used to store data used by processor 901 in performing operations. Where the memory and the processor are connected by a bus, the bus may comprise any number of interconnected buses and bridges, the buses connecting the various circuits of the one or more processors and the memory together. The bus may also connect various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or may be a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor is transmitted over the wireless medium via the antenna, which further receives the data and transmits the data to the processor.

A seventh embodiment of the present invention relates to a computer-readable storage medium storing a computer program. The computer program implements the above-described method embodiments when executed by a processor.

That is, it will be understood by those skilled in the art that all or part of the steps in implementing the methods of the embodiments described above may be implemented by a program stored in a storage medium, where the program includes several instructions for causing a device (which may be a single-chip microcomputer, a chip or the like) or a processor (processor) to perform all or part of the steps in the methods of the embodiments of the application. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

It will be understood by those of ordinary skill in the art that the foregoing embodiments are specific examples of carrying out the invention and that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. A method of network operation, comprising:

monitoring service level agreement SLA indexes of the network slice, and identifying SLA indexes with abnormal monitoring values;

acquiring a root index of the SLA index with the monitoring value being abnormal; the root index refers to a performance index of a Virtual Network Function (VNF) module in the network slice, which has an influence on the SLA index;

Screening out the root indexes with the monitoring value being abnormal from the root indexes with the monitoring value being abnormal SLA indexes;

optimizing the network slice according to the root indicator of which the monitoring value is abnormal;

The optimizing the network slice according to the root indicator of the monitoring value being abnormal comprises the following steps:

Generating an operation instruction for the target VNF module according to the root indicator of which the monitoring value is abnormal; the root index with the abnormal monitoring value is the performance index of the target VNF module;

If a plurality of identical operation instructions for the target VNF module exist in a first time window, performing function adjustment on the target VNF module according to one of the operation instructions;

If two opposite operation instructions exist in a second time window for the target VNF module, selecting one of the operation instructions to perform function adjustment on the target VNF module; wherein, the two opposite operation instructions refer to two operation instructions that play opposite roles in adjusting the function of the target VNF module.

2. The network operation and maintenance method according to claim 1, wherein the obtaining the root indicator of the SLA indicator that the monitored value is abnormal includes:

And acquiring the root indicator of the SLA indicator with the monitoring value being abnormal according to the pre-acquired corresponding relation between the SLA indicator and the root indicator.

3. The network operation and maintenance method according to claim 2, wherein the pre-acquisition mode of the correspondence between the SLA index and the root indicator is:

and analyzing a performance model adopted in the network slice operation process to obtain the corresponding relation between the SLA index and the root index.

4. The network operation and maintenance method according to claim 1, wherein the monitoring value of the root cause indicator being abnormal means that the monitoring value of the root cause indicator is not within a normal value range of the root cause indicator; the normal value range of the root index is preset by the following modes:

Acquiring a plurality of historical positive samples of the SLA index; each history positive sample comprises a normal history monitoring value of the SLA index and a history monitoring value of the root cause index under the condition that the SLA index is normal;

and setting a normal value range of the root index according to the historical monitoring values of the root index in the historical positive samples of the SLA index.

5. The network operation and maintenance method according to claim 4, wherein the setting of the normal value range of the root indicator according to the historical monitoring values of the root indicator in the plurality of historical positive samples of the SLA indicator, if the SLA indicator is a plurality of, determining the normal value range of the root indicator under each SLA indicator according to the historical monitoring values of the root indicator in the plurality of historical samples of each SLA indicator;

And setting the intersection of the normal value ranges of the root indexes under each SLA index as the normal value range of the root indexes for each root index.

6. The network operation and maintenance method according to any one of claims 1 to 5, wherein the optimizing the network slice according to the root cause indicator that the monitored value is abnormal includes:

If the monitoring value is a plurality of abnormal root indexes, analyzing the influence degree of the plurality of abnormal root indexes on the SLA index with the abnormal monitoring value, and selecting the root indexes with the abnormal monitoring value, the influence degree of which meets the preset condition, as the root indexes to be adjusted;

and optimizing the network slice based on the monitoring value of the root index to be adjusted.

7. The network operation and maintenance method according to claim 6, wherein the influence degree is characterized by a weight of the root cause indicator to the SLA indicator;

The analyzing the influence degree of a plurality of abnormal root indexes with abnormal monitoring values on the SLA indexes with abnormal monitoring values, and selecting the abnormal root indexes with the influence degree meeting the preset conditions as the root indexes to be adjusted comprises the following steps:

And obtaining the weights of a plurality of root indexes with abnormal monitoring values to SLA indexes with abnormal monitoring values, and selecting the root index with the largest weight and abnormal monitoring value as the root index to be adjusted.

8. The network operation and maintenance method according to claim 7, wherein the obtaining weights of the plurality of root indicators with abnormal monitoring values to the SLA indicator with abnormal monitoring values, and selecting the root indicator with the largest weight with abnormal monitoring value as the root indicator to be adjusted, includes:

according to the corresponding relation between the root indexes and the weight of the root indexes to the SLA indexes, the weight of the plurality of root indexes with abnormal monitoring values to the SLA indexes with abnormal monitoring values is obtained, and the root index with the largest weight and the abnormal monitoring value is selected as the root index to be adjusted.

9. The network operation and maintenance method according to claim 8, wherein the correspondence between the root indicator and the weight of the root indicator to the SLA indicator is obtained by:

Acquiring a plurality of historical samples of the SLA index; each history sample comprises a history monitoring value of the SLA index and a history monitoring value of a root index of the SLA index;

and obtaining the corresponding relation between the root index and the weight of the root index to the SLA index according to a plurality of historical samples of the SLA index.

10. An electronic device, comprising:

At least one processor; and

A memory communicatively coupled to the at least one processor; wherein,

The memory stores instructions executable by the at least one processor to enable the at least one processor to perform the network operation method of any one of claims 1 to 9.

11. A computer readable storage medium storing a computer program, wherein the computer program when executed by a processor implements the network operation method of any one of claims 1 to 9.