CN109474487B - Network performance monitoring method, network equipment and network performance monitoring system - Google Patents

Network performance monitoring method, network equipment and network performance monitoring system Download PDF

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CN109474487B
CN109474487B CN201811211744.2A CN201811211744A CN109474487B CN 109474487 B CN109474487 B CN 109474487B CN 201811211744 A CN201811211744 A CN 201811211744A CN 109474487 B CN109474487 B CN 109474487B
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network
ippm
measurement
data
performance monitoring
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CN109474487A (en
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喻胜
刘锋
鲍四海
唐永林
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UTStarcom Telecom Co Ltd
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UTStarcom Telecom Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L43/00—Arrangements for monitoring or testing data switching networks
    • H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/06—Management of faults, events, alarms or notifications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0803—Configuration setting
    • H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability

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  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Environmental & Geological Engineering (AREA)
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Abstract

The application provides a network performance monitoring method, network equipment and a network performance monitoring system, and relates to the field of network performance monitoring. In the network performance monitoring method, network equipment acquires IP performance standard IPPM measurement parameters among network interconnection protocol IP network nodes according to an IP network fault related range or a network performance monitoring requirement range of a monitoring network; processing the IPPM measurement parameters to obtain an IPPM measurement result; and reporting the IPPM measurement result to an upper layer system for indicating network optimization within the range related to the IP network fault or network performance standard within the range required by network performance monitoring. The network equipment can realize real-time active report of IPPM measurement results detected by the TWAMP probe in a format and a mode convenient for machine analysis, thereby realizing timely assessment and monitoring of IP network faults of an IP network, or network service quality verification, real-time monitoring of IP service transmission indexes with different priorities and the like.

Description

Network performance monitoring method, network equipment and network performance monitoring system
Technical Field
The present application relates to the field of network performance monitoring technologies, and in particular, to a network performance monitoring method, a network device, and a network performance monitoring system.
Background
With the evolution of networks and applications, operators hope to have more better Operation Administration and Management (OAM) methods to monitor the performance of the network when carrying out multi-service bearer on the network, so as to evaluate and monitor the Operation status and faults of the network before service is opened and during service Operation.
In the prior art, a TWAMP measurement result acquisition method acquires TWAMP measurement data as a Performance Monitoring (PM) object of a conventional network device. For example, the TWAMP measurement result data of the network device is polled periodically by a data collection module (Collector) on the server side in a question-and-answer manner by a similar method of polling 15-minute traffic statistics PM data of the network device port.
Therefore, the existing TWAMP measurement result acquisition method cannot adopt a system-customizable mode to actively report the TWAMP measurement result in real time, so that the operation state and the fault of the network cannot be evaluated and monitored in time.
Disclosure of Invention
An object of the present application is to provide a network performance monitoring method, a network device, and a network performance monitoring system, which can implement active reporting of IPPM measurement results detected by a TWAMP probe in a format and manner convenient for machine analysis, thereby implementing timely assessment and monitoring of IP network failures, or network service quality verification, real-time monitoring of IP service transmission indexes with different priorities, and the like.
In order to achieve the above purpose, the technical solutions adopted in the embodiments of the present application are as follows:
in a first aspect, an embodiment of the present application provides a network performance monitoring method, which is applied to a network telemetry framework, where the framework includes a network device, and the method includes:
the network equipment acquires IP performance standard IPPM measurement parameters among network interconnection protocol IP network nodes according to the IP network fault related range or the network performance monitoring requirement range of the monitoring network;
the network equipment processes the IPPM measurement parameters to obtain an IPPM measurement result;
and the network equipment reports an IPPM measurement result to an upper layer system, wherein the IPPM measurement result is used for indicating network optimization within an IP network fault related range or network performance standard within a network performance monitoring requirement range.
As described above, before the network device obtains the IP performance standard IPPM measurement parameters between the network interconnection protocol IP network nodes according to the IP network failure related range or the network performance monitoring requirement range of the monitoring network, the method further includes:
the network equipment acquires subscription information;
after the network device acquires the subscription information, the network device sets an IPPM measurement result to be acquired, reports the adopted transmission protocol and reports the selected transmission channel according to the subscription information and a preset data model.
As described above, the acquiring, by the network device, the IP performance standard IPPM measurement parameter between the network interconnection protocol IP network nodes according to the IP network failure related range or the network performance monitoring required range of the monitoring network includes:
the method comprises the steps that network equipment collects original data carrying original IPPM measurement information in an IP network fault related range or a network performance monitoring requirement range;
and the network equipment calculates the IPPM measurement parameters according to the original data.
As described above, the processing, by the network device, the IPPM measurement parameter to obtain the IPPM measurement result includes:
the network equipment samples the IPPM measurement parameters according to the setting of the IPPM measurement result required to be obtained;
and the network equipment encodes the sampled IPPM measurement parameters according to a preset data model to obtain an IPPM measurement result.
As described above, a preset data model is used to define the standard format information of the IPPM measurement result.
In a second aspect, an embodiment of the present application further provides a network device applied to a network telemetry framework, where the network device includes: the system comprises a data probe module, a data generation module and a data issuing module;
the data probe module comprises a TWAMP (two-way active measurement protocol) probe and is used for acquiring original data carrying original IPPM (internet protocol packet protocol) measurement information in an IP (Internet protocol) network fault related range or a network performance monitoring requirement range;
the data generation module is used for calculating to obtain IPPM measurement parameters according to the original data and processing the IPPM measurement parameters to obtain an IPPM measurement result;
the data issuing module is used for reporting the IPPM measuring result to an upper layer system, and the IPPM measuring result is used for indicating network optimization within an IP network fault related range or network performance standard within a network performance monitoring requirement range.
As described above, the network device further includes: and the data subscription module is used for acquiring subscription information, setting an IPPM measuring result required to be acquired according to the subscription information and a preset data model, reporting the adopted transmission protocol and reporting the selected transmission channel.
As described above, the data generation module is configured to sample the IPPM measurement parameters according to the setting of the data subscription module on the IPPM measurement result to be obtained; and coding the sampled IPPM measurement parameters according to a preset data model to obtain an IPPM measurement result.
As described above, a preset data model is used to define the standard format information of the IPPM measurement result.
In a third aspect, an embodiment of the present application further provides a network performance monitoring system, including an operation and maintenance support system based on a network telemetry framework, a data acquisition module, and a plurality of network devices according to the second aspect;
the plurality of network devices are used for reporting the IPPM measuring result to the data acquisition module;
the data acquisition module is used for collecting and decoding IPPM measuring results from a plurality of network devices;
and the operation and maintenance support system is used for carrying out IP network fault correlation and root cause analysis according to the IPPM measurement result decoded by the data acquisition module and issuing an optimized configuration command to the network within the IP network fault related range according to the analysis result.
Compared with the prior art, the embodiment of the application has the following beneficial effects:
the embodiment of the application is based on a network Telemetry (Telemetry) framework, IPPM measurement parameters among IP network nodes are obtained through network equipment according to an IP network fault related range or a network performance monitoring requirement range of a monitoring network, the IPPM measurement parameters are processed to obtain an IPPM measurement result, and the IPPM measurement result is actively reported to a superior system in real time, so that the superior system can analyze fault reasons or network performance standards in the network performance monitoring requirement range according to the IPPM measurement result and issue an optimized configuration command to a network in the IP network fault related range according to the analysis result, and therefore timely assessment and monitoring of IP network faults of the IP network, network service quality verification, real-time monitoring of IP service transmission indexes with different priorities and the like are achieved.
Additional features and advantages of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the present application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic interaction environment diagram of a network performance monitoring system according to an embodiment of the present disclosure;
fig. 2 is a schematic flow chart of a network performance monitoring method according to a first embodiment of the present application;
fig. 3 is a schematic flow chart of a network performance monitoring method according to a second embodiment of the present application;
fig. 4 is a schematic flowchart of a process for acquiring IPPM measurement parameters by a network device according to an embodiment of the present application;
fig. 5 is a schematic processing flow diagram of a network device for measuring IPPM according to an embodiment of the present disclosure;
fig. 6 is a functional block diagram of a network device according to a third embodiment of the present application;
fig. 7 is a schematic diagram of a network monitoring system according to a fourth embodiment of the present application;
fig. 8 is a schematic flowchart of a method for monitoring packet loss in a IP network according to a fifth embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
As shown in fig. 1, based on a telemetering framework, an upper System of the network performance monitoring System is an Operation and Support System (OSS) or a control System (Controller), and monitors IP network performance between a plurality of network devices through a background management server end data acquisition module, wherein the plurality of network devices are connected through an IP network, and any two network device nodes have IP reachability.
Specifically, the telemetrology framework is a method for subscribing network measurement data sets (Probes or Sensors) to be collected through a data collection module (Collector) on the server side, such as: and the network equipment node continuously, actively and real-timely pushes the network measurement data to a data acquisition module at the server side. In addition, in the embodiment of the present application, the network device under the telemetric framework may be a physical device connected to the network, such as a computer, a switch, a router, and a wireless access point.
The first embodiment:
the embodiment provides a network performance monitoring method, which is applied to a network Telemetry (telemetrology) frame, wherein the telemetrology frame comprises network equipment.
As shown in fig. 2, the network performance monitoring method specifically includes the following steps:
s110, acquiring IP Performance standard (IPPM) measurement parameters between network interconnection protocol IP network nodes by network equipment according to an IP network fault related range or a network Performance monitoring requirement range of a monitoring network;
specifically, the related range of the IP network failure refers to a network range related to an IP network failure (e.g., a micro-burst failure such as an IP packet loss) occurring in the network; the network performance monitoring requirement range refers to a network range required when network service quality verification is required or IP service transmission indexes with different priorities are monitored in real time, and the network equipment can acquire IPPM measurement parameters between IP network nodes according to the range involved by IP network faults in the network or the network performance monitoring requirement range.
Optionally, the IPPM measurement parameters include: average time delay, minimum time delay, maximum time delay, average jitter, minimum jitter, maximum jitter, average packet loss rate, minimum packet loss rate, maximum packet loss rate and the like.
S120, the network equipment processes the IPPM measurement parameters to obtain an IPPM measurement result;
specifically, after obtaining the IPPM measurement parameters, the network device may perform the following steps according to subscription information of the data acquisition module on the server side to the IPPM measurement result and a data model preset in the network device: sampling, encoding and the like to obtain an IPPM measuring result.
S130, the network equipment reports an IPPM measurement result to an upper layer system, wherein the IPPM measurement result is used for indicating network optimization within an IP network fault related range or network performance standard within a network performance monitoring requirement range;
specifically, after obtaining the IPPM measurement result, the network device reports the IPPM measurement result to the data acquisition module on the server side in a specific transmission channel according to a specific transmission protocol, so that the upper layer system can analyze the reason of the IP network fault in the network according to the IPPM measurement result received by the data acquisition module, or obtain a network performance standard within a network performance monitoring requirement range, and issue an optimal configuration command to the network according to the analysis result.
The specific Transmission channel and the Transmission Protocol may be specified by a network device, and specifically may be a gRPC (Google Remote Procedure Call, Google Remote invocation channel), a TCP (Transmission control Protocol) connection, an FTP (File Transfer Protocol), or an IP + UDP (User Datagram Protocol) reliable Transmission channel with a serial number confirmation mechanism, which is not limited herein.
As described above, in the network performance monitoring method provided in this embodiment, the network device in the telemetric framework obtains the IPPM measurement parameters between the IP network nodes according to the IP network failure related range or the network performance monitoring requirement range of the monitoring network, processes the IPPM measurement parameters to obtain the IPPM measurement result, and reports the IPPM measurement result to the upper level system, so that the upper level system can analyze the failure cause or the network performance standard within the network performance monitoring requirement range according to the IPPM measurement result, and issue the optimal configuration command to the network within the IP network failure related range according to the analysis result, thereby implementing the IP network failure monitoring function of the IP network, or the network service quality verification, the real-time monitoring of the IP service transmission indexes with different priorities, and the like.
Optionally, in this embodiment of the present application, in the network performance monitoring method, the network device performs the following steps: the obtaining of the IPPM measurement parameter, the Processing of the IPPM measurement parameter, the reporting of the IPPM measurement result to the data acquisition module on the server side, and the like can be realized by the operation of Central Processing Unit (CPU) software in the network device.
Second embodiment:
on the basis of the first embodiment, this embodiment provides a network performance monitoring method, which is applied to a network device under a telemeasurement framework, and as shown in fig. 3, the network performance monitoring method specifically includes the following steps:
s210, the network equipment acquires subscription information;
specifically, the subscription information comes from a data acquisition module on the server side. When an IP network fault occurs in the monitoring network, the data acquisition module at the server side sends subscription information to the network equipment (for example, the subscription average packet loss rate is more than 10)-5IPPM measurement of).
S220, after the network equipment acquires the subscription information, setting an IPPM measuring result required to be acquired, reporting an adopted transmission protocol and reporting a selected transmission channel according to the subscription information and a preset data model;
specifically, after receiving subscription information sent by a data acquisition module on a server side, the network device sets an IPPM measurement result to be obtained, a transmission protocol used for reporting, and a transmission channel selected for reporting according to the subscription information and a preset data model. For example, the network device sets the average packet loss rate of IPPM measurement result to be greater than 10-5The transmission channel for reporting the IPPM measurement result is set to gRPC (Google Remote Procedure Call, Google Remote Call), and the like. The preset data model is used for defining standard format information such as parameter data types and value ranges of IPPM measuring results.
S230, the network equipment acquires IPPM measurement parameters among IP network nodes according to the IP network fault related range or the network performance monitoring required range of the monitoring network;
s240, the network equipment processes the IPPM measurement parameters to obtain an IPPM measurement result;
and S250, the network equipment reports an IPPM measurement result to the upper layer system, wherein the IPPM measurement result is used for indicating network optimization within the range related to the IP network fault or network performance standard within the range required by network performance monitoring.
Specifically, for step S230, step S240, and step S250 in this embodiment, reference may be made to the description of step S110, step S120, and step S130 in the first embodiment, which is not repeated herein.
As shown in fig. 4, in the embodiment of the present application, the step S230, where the network device obtains the IPPM measurement parameter between the IP network nodes according to the IP network failure related range or the network performance monitoring requirement range of the monitoring network specifically includes the following steps:
s231, acquiring original data carrying original IPPM measurement information in an IP network fault related range or a network performance monitoring requirement range by network equipment;
specifically, a Two-way active measurement protocol (TWAMP) is deployed in the network device, the network device installs a TWAMP probe in a network range related to an IP network fault or a network performance monitoring requirement range, and the TWAMP probe collects original data carrying IPPM measurement information returned by a Session Reflector (Session Reflector) which is a measurement opposite end of the Session Sender at a Session Sender (Session Sender) of the network device.
The TWAMP Probe belongs to a dynamic Software Probe (Software dynamic network Probe, Software DNP) type in a Telemetry framework, and the specific structure of the TWAMP Probe can comprise: a TWAMP measurement Session (Session) ID, a Virtual Private Network (VPN) instance ID, a measurement packet length, a measurement packet sequence number, a packet transmission timestamp of a Session transmitter (Session Sender), a packet reception timestamp of a Session Sender, a packet transmission timestamp of a Session Reflector (Session Reflector), a packet reception timestamp of a Session Reflector, a timing accuracy of a Session Sender, a timing accuracy of a Session Reflector, a Time To Live (TTL) value from a Session Sender To a Session Reflector of a test packet, and a round-trip TTL value of a test packet.
In the embodiment of the application, the TWAMP protocol realizes network performance monitoring between any two IP reachability network nodes by actively injecting measurement messages into the network and collecting and analyzing the measurement messages. Before deploying IP layer traffic (such as IP layer data transmission between a base station of a mobile backhaul network and a core network node), and when the network actually operates, an operator can activate a TWAMP protocol on any two nodes to be monitored through a TWAMP method. After a Test Session (Test Session) is defined by defining an IP address, a transport layer port number and a message IP priority of a measurement end point, the TWAMP injects an IP measurement message with a timestamp and a sequence number into the network through its Session Sender to send to the measurement opposite end point. And measuring a Session Reflector of an end terminal of the opposite end by the TWAMP, and marking the message with a corresponding receiving timestamp to reflect the message to the Session Sender. The TWAMP probe can acquire original data carrying IPPM measurement information according to a message at a reflection Session Sender.
It should be particularly noted that, in this embodiment of the present application, the network device may also implement acquisition of the original data carrying the IPPM Measurement information by installing an One-Way Active Measurement Protocol (OWAMP) probe, where the OWAMP probe acquires the original data corresponding to a Measurement packet actively injected into the network through an OWAMP Protocol, and the application is not particularly limited herein.
S232, the network equipment calculates and obtains IPPM measuring parameters according to the original data;
specifically, after acquiring raw data carrying IPPM measurement information, the network device performs analysis and calculation on the raw data to obtain IPPM measurement parameters, and forms the following structured TWAMP IPPM model:
TWAMP IPPM sampling the analysis parameter (1);
delay (1.1), average delay (1.1.1), maximum delay (1.1.2), minimum delay (1.1.3);
jitter (1.2), average jitter (1.2.1), maximum jitter (1.2.2), minimum jitter (1.2.3);
packet loss rate (1.3), average packet loss rate (1.3.1), maximum packet loss rate (1.3.2), and minimum packet loss rate (1.3.3);
the TWAMP IPPM structural model forms a logic TWAMP probe sampling sub-tree, which can be hung under the Operation Administration and Management (OAM) related nodes of telemetrology frame network equipment.
As shown in fig. 5, in the embodiment of the present application, the processing, by the network device, the IPPM measurement parameter in step S240 to obtain the IPPM measurement result specifically includes the following steps:
s241, the network equipment samples the IPPM measurement parameters according to the setting of the IPPM measurement result required to be obtained;
specifically, after acquiring the IPPM measurement parameter, the network device samples the IPPM measurement parameter according to the setting of the IPPM measurement result to be acquired in step S220, for example, selects an average packet loss rate greater than 10-5IPPM measurement of (a).
S242, the network equipment encodes the sampled IPPM measurement parameters according to a preset data model to obtain an IPPM measurement result;
specifically, the network device encodes the IPPM measurement parameter sampled in step S241 according to a data format specified by a preset data model, so as to obtain an IPPM measurement result. The preset data model can be selected as TWAMPIPPM YANG data model, so that interconnection and intercommunication between data acquisition modules at network management server sides of different manufacturers and a network equipment side are facilitated.
In summary, in the network performance monitoring method provided in this embodiment, the data acquisition module on the server side may send subscription information to the network device, and the network device sets the IPPM measurement result to be obtained, the transmission protocol used for reporting, and the transmission channel selected for reporting according to the received information and the preset data model, so that on the basis of implementing the IP network fault monitoring function of the IP network in the first embodiment, the function of monitoring the network performance by using a subscription-active real-time reporting architecture under the telemetric framework is further implemented.
In addition, the network equipment locally analyzes and calculates the measured original data and organizes the measurement result according to the structured data model, thereby being beneficial to the cloud analysis software of the upper system to carry out intelligent automatic analysis processing.
The third embodiment:
as shown in fig. 6, the basic principle and the generated technical effect of the network device applied in the telemetrology framework are the same as those of the corresponding method embodiments, and for a brief description, reference may be made to corresponding contents in the method embodiments for a part not mentioned in this embodiment. As described in the first embodiment, the network device may be a computer, a switch, a router, a wireless access point, and the like, which are connected to entity devices in the network. The network device includes: a data subscription module 310, a data probe module 320, a data generation module 330, and a data publishing module 340.
The data subscription module 310 is configured to acquire subscription information sent by a data acquisition module from a server side, set a measurement result of IPPM to be acquired, report an adopted transmission protocol, and report a selected transmission channel according to the subscription information and a preset data model.
The data probe module 320 includes a TWAMP probe, and is configured to collect raw data carrying raw IPPM measurement information in an IP network failure related range or a network performance monitoring requirement range.
The data generating module 330 is configured to calculate raw data acquired by the data probe module 320 to obtain IPPM measurement parameters, and process the IPPM measurement parameters according to a preset data model and a setting of the IPPM measurement result to be acquired by the data subscribing module 310 to obtain the IPPM measurement result.
For example, the data generating module 330 first samples the IPPM measurement parameters obtained by calculation according to the setting of the IPPM measurement result to be obtained by the data subscribing module 310; further, the data generating module 330 encodes the sampled IPPM measurement parameters according to a data format specified by a preset data model (e.g., TWAMP IPPM YANG data model) and a data format that occupies a minimum amount of test data transmission bandwidth and CPU processing capacity for facilitating large-scale concurrent data acquisition, so as to obtain an IPPM measurement result.
Optionally, in this embodiment of the present application, the data generating module 330 encodes the sampled IPPM measurement parameters by using a binary serialization method.
The data publishing module 340 is configured to continuously, real-timely and actively push and report the IPPM measurement result to an upper system (or a data acquisition module on a server side) on the transmission channel set by the data subscribing module 310, where the IPPM measurement result is used to indicate network optimization within an IP network failure related range or a network performance standard within a network performance monitoring requirement range. It should be noted that, after the data generating module 330 processes the IPPM parameters, when the data issuing module 340 issues the IPPM measurement result reported by the upper system, the pure measurement result information without redundant information is transmitted on the data issuing line.
As described above, the network device provided in this embodiment can perform the steps S210, S220, S230, S240 and S250.
The fourth embodiment:
as shown in fig. 7, the present embodiment provides a network performance monitoring system, which includes an operation and maintenance support system 410 based on a telemetrology frame, a data collection module 420, and a plurality of network devices 430 as described in the third embodiment above.
The plurality of network devices 430 are configured to obtain the IPPM measurement result, and report the IPPM measurement result to the data acquisition module 420. The data collection module 420 is configured to collect and decode IPPM measurement results from a plurality of network devices 430; the operation and maintenance support system 410 is configured to perform IP network fault correlation and root cause analysis according to the IPPM measurement result decoded by the data acquisition module 420, and issue an optimal configuration command to a network within the IP network fault related range according to the analysis result.
Specifically, the operation and maintenance support system 410 is an upper layer system of the server, and can analyze the IPPM measurement result decoded by the server-side data acquisition module 420 to obtain the cause of the IP network fault, and issue an optimal configuration command to the network according to the analysis result.
The data acquisition module 420 is deployed at a background management server side of the network, and optionally, the data acquisition module is stored in a software function module (such as an executable program) at the server side in a form of software, and is deployed in the same way as or independently from Network Management System (NMS) network management software, which is not limited herein.
In addition, in the embodiment of the present application, a mapping relationship between the network device 430 and the data collection module 420 is many-to-many, that is, under a telemetric framework, the network device 430 may report IPPM measurement results to the multiple data collection modules 420, and the data collection modules 420 may also send subscription information to the multiple network devices 430 or receive the IPPM measurement results at the same time.
Optionally, in this embodiment of the present application, the network device 430 and the data acquisition module 420 on the server side encode and decode the transmitted IPPM measurement result through the same data model and data format, so that the requirement of IPPM measurement result transmission on network bandwidth and CPU processing performance can be reduced, and the compatibility with the software of the data acquisition module 420 of different manufacturers can be maintained.
Fifth embodiment:
as shown in fig. 8, this embodiment provides a method for monitoring packet loss in IP network micro burst, which is applied to the network performance monitoring system according to the fourth embodiment. When the IP message packet loss micro-burst fault occurs in the network, aiming at a target network area with the micro-burst fault, the TWAMP probe is used for actively measuring the packet loss rate of the IP message packet loss micro-burst fault, and second-level real-time monitoring and data collection are realized, so that fault detection, fault correlation, root cause analysis and network optimization are carried out.
The method for monitoring the micro burst packet loss of the IP network comprises the following specific steps:
s510, the data acquisition module sends subscription information to the network equipment, and the network equipment is provided with a TWAMP probe;
specifically, when an IP packet loss micro-burst fault occurs in the network, the data acquisition module on the server side sends subscription information to the network device (the subscription average packet loss rate is greater than 10)-5IPPM measurement result) and the network device installs TWAMP probes and starts active probing of the network between the specified IP network nodes.
S520, the network equipment sets a packet loss rate measurement result to be acquired, reports the adopted transmission protocol and reports the selected transmission channel;
specifically, the network device sets IPPM measurement according to subscription information of the data acquisition moduleMeasurement result standard (average packet loss rate greater than 10)-5) And according to a preset data model (TWAMP IPPM YANG data model), setting a transmission protocol and a transmission channel (Google remote procedure call interface gPRC) adopted when the network equipment reports the IPPM measurement result to the data acquisition module.
S530, collecting original data by the TWAMP probe;
specifically, as described in the previous method embodiments, the TWAMP probe collects raw data carrying raw IPPM measurement information.
S540, the network equipment judges the original data, if the original data is complete, the step S550 is executed, otherwise, the step S541 is executed first, and then the step S550 is executed;
specifically, after the TWAMP probe collects the raw data, the network device first determines whether the collected raw data is complete, and when the raw data is complete, the step S550 may be directly performed to analyze and calculate the raw data, and when the raw data is incomplete, the step S541 needs to be performed first to obtain the complete raw data, and then the step S550 is performed to analyze and calculate the raw data.
S541, the network equipment processes the message to obtain complete original data;
specifically, when the original data is incomplete, the Session Sender in the network device processes the message reflected by the remote Session reflector to obtain complete original data, and then performs step S550.
S550, the network equipment processes the original data to obtain a packet loss rate measurement result;
specifically, the network device analyzes and calculates the raw data according to the setting of the packet loss rate measurement result to be obtained in step S520 to obtain a packet loss rate measurement parameter, and encodes the packet loss rate measurement parameter according to the encoding format specified by the preset data model to obtain a packet loss rate measurement result.
S560, the network device reports the packet loss rate measurement result to the data acquisition module;
specifically, after obtaining the packet loss rate measurement result, the network device actively reports the packet loss rate measurement result to the data acquisition module on the server side in real time through the transmission channel formulated in step S520. It should be noted that, as described in the fourth embodiment, the network device may send the packet loss rate measurement result to the multiple data acquisition modules, and meanwhile, the data acquisition modules may also receive the packet loss rate measurement results from the multiple network devices.
S570, the data acquisition module processes the packet loss rate measurement result;
specifically, after receiving the packet loss rate measurement result, the data acquisition module summarizes the packet loss rate measurement results from the plurality of network devices and decodes the packet loss rate measurement result.
S580, the operation and maintenance support system analyzes the cause of the packet loss micro-burst fault of the IP message according to the packet loss rate measurement result processed by the data acquisition module;
specifically, the operation and maintenance support system can perform association and root cause analysis of packet loss micro-burst faults of the IP packet according to the packet loss rate measurement result after the data acquisition module decodes the packet loss rate measurement result.
S590, the operation and maintenance support system sends an optimized configuration command to the network according to the analysis result of the step S580;
specifically, after obtaining the correlation and root cause analysis result of the packet loss micro-burst fault of the IP packet, the operation and maintenance support system issues an optimized configuration command to the network according to the analysis result, so as to eliminate the packet loss micro-burst fault of the IP packet.
Optionally, in this embodiment of the application, on the basis of the method for monitoring packet loss in IP network micro burst described in the fifth embodiment, after the step S590 is executed and the operation and maintenance support system issues the optimized configuration command to the network according to the analysis result of the step S580, the network performance monitoring system can further determine whether the IP packet loss micro burst fault is eliminated by using the method for monitoring packet loss in IP network micro burst, and if the IP packet loss micro burst fault is not eliminated, return to the step S520 to perform next round of IP network micro burst packet loss monitoring and network optimized configuration.
In summary, according to the network performance monitoring method, the network device, and the network performance monitoring system provided by the present application, after the IPPM measurement result is structured and modeled by the preset data model (TWAMP IPPM YANG data model) at the network device side and the data acquisition module at the server side is allowed to subscribe to the IPPM measurement result by the designated transmission channel (google remote procedure call interface gRPC), the network device can actively push the IPPM measurement result to the server side in real time, so that the upper layer operation and maintenance support system can analyze the IP network failure and issue an optimized configuration command to the network, or can perform network service quality verification and real-time monitoring of IP service transmission indexes with different priorities according to the IPPM measurement result. The real-time active IPPM measurement result reporting mode can effectively monitor IP network faults in an IP network, verify network service quality, monitor IP service transmission indexes without priority in real time and is beneficial to realizing network perception.
In addition, the network performance monitoring system provided by the application, the operation and maintenance support system and the network equipment form an interaction model, namely, according to the analysis result, the operation and maintenance support system can automatically form and issue a network optimization configuration scheme, so that the network optimization configuration scheme is combined with an IPPM (internet protocol performance monitor) measurement result of the subscribed network equipment to form closed-loop control. It should be noted that the process of forming and issuing the network optimization configuration scheme in the operation and maintenance support system may be completed by a relevant Application (APP) in the operation and maintenance support system, and no special requirement is made in the Application.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (8)

1. A network performance monitoring method applied to a network telemetry framework, the framework including network devices, the method comprising:
the network equipment acquires IP performance standard IPPM measurement parameters among network interconnection protocol IP network nodes according to the IP network fault related range or the network performance monitoring requirement range of the monitoring network;
the network equipment processes the IPPM measurement parameters to obtain an IPPM measurement result;
the network equipment reports the IPPM measuring result to an upper layer system, and the IPPM measuring result is used for indicating network optimization within an IP network fault related range or network performance standard within a network performance monitoring requirement range;
wherein, the processing of the IPPM measurement parameter by the network device to obtain the IPPM measurement result includes:
the network equipment samples the IPPM measurement parameters according to the setting of the IPPM measurement result required to be obtained;
and the network equipment encodes the sampled IPPM measurement parameters according to a preset data model to obtain an IPPM measurement result.
2. The method according to claim 1, wherein before the network device obtains IP performance standard IPPM measurement parameters between network interconnection protocol IP network nodes according to the IP network failure related range or the network performance monitoring requirement range of the monitoring network, the method further comprises:
the network equipment acquires subscription information;
after the network equipment acquires the subscription information, the network equipment sets an IPPM measuring result required to be acquired, reports the adopted transmission protocol and reports the selected transmission channel according to the subscription information and a preset data model.
3. The network performance monitoring method according to claim 1, wherein the network device obtaining IP performance standard IPPM measurement parameters between network interconnection protocol IP network nodes according to the IP network failure related range or the network performance monitoring requirement range of the monitoring network comprises:
the network equipment acquires original data carrying original IPPM measurement information in an IP network fault related range or a network performance monitoring requirement range;
and the network equipment calculates the IPPM measurement parameters according to the original data.
4. The network performance monitoring method according to claim 1 or 2, wherein the preset data model is used for defining standard format information of the IPPM measurement result.
5. A network device for use in a network telemetry framework, the network device comprising: the system comprises a data probe module, a data generation module and a data issuing module;
the data probe module comprises a TWAMP (two-way active measurement protocol) probe and is used for acquiring original data carrying original IPPM (internet protocol packet protocol) measurement information in an IP (Internet protocol) network fault related range or a network performance monitoring requirement range;
the data generation module is used for calculating an IPPM measurement parameter according to the original data and processing the IPPM measurement parameter to obtain an IPPM measurement result;
the data issuing module is used for reporting the IPPM measuring result to an upper layer system, and the IPPM measuring result is used for indicating network optimization within an IP network fault related range or network performance standard within a network performance monitoring requirement range;
the data generation module is used for sampling the IPPM measurement parameters according to the setting of the data subscription module on the IPPM measurement result required to be obtained; and coding the sampled IPPM measurement parameters according to a preset data model to obtain an IPPM measurement result.
6. The network device of claim 5, further comprising: a data subscription module;
the data subscription module is used for acquiring subscription information, setting an IPPM measuring result required to be acquired, reporting an adopted transmission protocol and reporting a selected transmission channel according to the subscription information and a preset data model.
7. The network device of claim 5 or 6, wherein the predetermined data model is used to define standard format information of the IPPM measurement result.
8. A network performance monitoring system comprising an operation and maintenance support system based on a network telemetry framework, a data acquisition module and a plurality of network devices according to any one of claims 5 to 7;
the plurality of network devices are used for reporting IPPM measurement results to the data acquisition module;
the data acquisition module is used for collecting and decoding IPPM measuring results from a plurality of network devices;
and the operation and maintenance support system is used for carrying out IP network fault correlation and root cause analysis according to the IPPM measurement result decoded by the data acquisition module and issuing an optimized configuration command to the network within the IP network fault related range according to the analysis result.
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