CN103326901B - A kind of power system broadband network performance test methods and system - Google Patents

Abstract

The application discloses a method and system for testing the performance of a broadband network in a power system. The method includes: in the testing phase, receiving a test request, configuring a data unit in the power system corresponding to the identifier of the data unit to be tested, and then generating a The business data corresponding to the type will be converted into the target business data according to the preset rules, and the target business data will be transmitted between the source port and the destination port in the tested data unit, and the transmitted data will be analyzed according to the tested type. Get test results. In the power system broadband network performance testing method disclosed in the embodiment of the present invention, business data in different formats is generated according to different business types, and the data transmission process of the business is simulated for testing, thereby solving the problem of single data flow in the prior art The problem establishes a foundation for testing and evaluating the power service carrying capacity of the network, and meets the diversity requirements of power services.

Description

A method and system for testing the performance of a power system broadband network

technical field

The invention relates to the technical field of power system detection, and more specifically relates to a method and system for testing the performance of a power system broadband network.

Background technique

There are a large number of businesses in the power network system that need to be remote and intelligent, so the construction of a network communication platform is imminent. Although the current guiding ideology for the construction of electric power dedicated communication networks is to build medium and long-distance distribution network communication networks based on optical fiber + broadband wireless technology, correspondingly, it is necessary to study methods or equipment for power grid performance testing.

For this reason, the Chinese invention patent publication number is CN101931571A's invention "network performance test system and test method", which uses preset documents as business flow to test the performance of the network. Although the test method is relatively simple and easy to operate, the data of the system The flow is relatively single, and the power service carrying capacity of the network cannot be tested and evaluated, and the diversity requirements of power services cannot be met.

Contents of the invention

In view of this, the present invention provides a power system broadband network performance testing method and system to solve the problem that in the testing method in the prior art, the data flow of the system is relatively single, and the power service carrying capacity of the network cannot be tested and evaluated. , can not meet the diversity requirements of the power business.

To achieve the above object, the present invention provides the following technical solutions:

A method for testing the performance of a power system broadband network is applied to the power system, and the method includes: a service data definition stage and a test stage;

The business data definition stage includes:

Set the corresponding message format, message field and timing for each business respectively;

The testing phases include:

Receive a test request, the test request includes: the service type identifier to be tested, the type identifier to be tested, and the configuration parameters to be tested, and the configuration parameters to be tested include at least: the number of nodes to be tested and the ID of the data unit to be tested;

Configure the data unit corresponding to the tested data unit identifier in the power system according to the tested service type, the tested type and the tested configuration parameter;

Generate service data corresponding to the tested service type according to the preset message format, message field definition and message sequence corresponding to the tested service type;

converting the business data into target business data according to preset rules, the target business data at least including the business data and information identifying the business type of the business data;

According to the principle corresponding to the tested type, transmit the target service data between the source port and the destination port in the tested data unit;

According to the tested type, the transmitted data is analyzed to obtain a test result.

Preferably, the tested configuration parameters further include: the number of tested services and the service interval.

Preferably, the tested data unit identification includes: the port number or IP address of the tested unit.

Preferably, the process of converting the service data corresponding to the tested service identifier into target service data according to preset rules includes:

Expressing the business data in a UDP protocol format;

Add 12 bytes between the service data after the UDP header of the service data;

A preset number of bytes is selected from the 12 bytes, and the service type of the service data is marked according to a preset rule.

Preferably, the target business data also includes:

Service data length information, check information, service sequence number, service confirmation sequence number and retransmission identifier.

Preferably, the number n _r of the business data corresponding to the tested business type generated according to the preset message format corresponding to the tested business type, message field definition and message timing is based on the following The above formula determines:

Among them, T _r is the time interval for the data unit to generate information, and T _p is the polling period for each data unit by the master station.

Preferably, when the tested type is a business success rate test, the number of times of the tested business is n and the business interval is t, according to the tested type, the transmitted data is analyzed to obtain a test The resulting process includes:

Obtain the data transmitted during each tested process separately, and analyze the business process as success or failure;

Obtain the number of business successes m _s and the number of business failures m _l ;

The test result is obtained according to the business success rate η=m _s /(m _s +m _l )*100%.

Preferably, the process of analyzing the business as success or failure includes:

In the case of analyzing that the transmitted data contains all the data packets of each stage in the business process and the data packets are all correct, the business is successful;

In the case where the analyzed data transmitted does not contain all the data packets in each stage of the service process or the data packets are not completely correct, the service fails.

Preferably, when the tested type is a maximum throughput test, the target service data is transmitted between the source port and the destination port in the tested data unit according to the principle corresponding to the tested type The process includes:

Controlling the source port to send a predetermined amount of service data to the destination port at a currently set rate.

Preferably, the process of analyzing the transmitted data and obtaining test results according to the tested type includes:

Acquiring the amount of business data received by the destination port;

When the amount of received service data is less than the predetermined amount, after reducing the current setting rate by a predetermined value, controlling the source port to send the predetermined amount of service data at a rate after reducing the predetermined value, and Go back to the step of obtaining the amount of data received by the destination port, and continue to execute until the amount of business data received by the destination port is equal to the predetermined amount;

When it is determined that the amount of service data received by the destination port is equal to the predetermined amount, the sending rate of the source port is the maximum throughput.

Preferably, when the tested type is an end-to-end average delay test, according to the tested type, analyzing the transmitted data, the process of obtaining the test result includes:

Determining a preset data block group to be transmitted, wherein there are multiple data blocks in the data block group to be transmitted;

After the source port and the destination port are time-synchronized, sequentially transmit the data blocks in the data block group to be transmitted;

Record the time when the first bit of data in each data block leaves the source port and the time when the last bit of data in the data block arrives at the destination port;

Obtain the end-to-end delay of each data block separately;

Determine the average end-to-end delay of each data block as the end-to-end average delay.

Preferably, before the step of transmitting the target service data between the tested data units, the step further includes:

According to the principle that the data packets arriving at the destination port within a fixed time are subject to the Poisson distribution, background data packets are generated and transmitted.

A power system broadband network performance testing system applied to a power system, the method comprising:

The business data message definition module is used to set the corresponding message format, message field and sequence for each business respectively;

The receiving module is used to receive a test request, the test request includes: the tested service type identification, the tested type identification and the tested configuration parameters, and the tested configuration parameters include at least: the number of tested nodes and the tested data unit ID,

A configuration module, configured to configure a data unit corresponding to the tested data unit identifier in the power system according to the tested service type, the tested type, and the tested configuration parameters;

The target service data generation module is used to generate service data corresponding to the test service type according to the preset message format corresponding to the test service type, message field definition and message timing, and will be related to the test service type The business data is converted into target business data according to preset rules, and the target business data at least includes the business data and information identifying the business type of the business data;

A data transmission module, configured to transmit the target service data between the source port and the destination port in the tested data unit according to the principle corresponding to the tested type;

The result analysis module is configured to analyze the transmitted data according to the tested type to obtain test results.

It can be seen from the above technical solutions that, compared with the prior art, in the power system broadband network performance testing method disclosed in the embodiment of the present invention, business data in different formats are generated according to different business types, and the data transmission process of the business is simulated to perform The test solves the problem of single data flow in the prior art, establishes a foundation for testing and evaluating the power service carrying capacity of the network, and satisfies the diversity requirements of power services.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention, and those skilled in the art can also obtain other drawings according to the provided drawings without creative work.

Fig. 1 is a flow chart of a method for testing the performance of a power system broadband network disclosed in an embodiment of the present invention;

FIG. 2 is a flow chart of another power system broadband network performance testing method disclosed in an embodiment of the present invention;

Fig. 3 is a schematic diagram of a service data format disclosed by an embodiment of the present invention;

FIG. 4 is a flow chart of another power system broadband network performance testing method disclosed in an embodiment of the present invention;

Fig. 5 is a schematic diagram of a business process disclosed by an embodiment of the present invention;

FIG. 6 is a flow chart of another power system broadband network performance testing method disclosed in an embodiment of the present invention;

Fig. 7 is a schematic structural diagram of a power system broadband network performance testing system disclosed in an embodiment of the present invention.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The embodiment of the invention discloses a method for testing the performance of a power system broadband network. The method is applied to the power system and includes: a service data definition stage and a test stage.

The business data definition stage is carried out in the early stage of the whole test process. In this embodiment, this process is specifically based on the power business specification, using the program language to describe the message format, message fields, and timing of the data of each business. In this way, different services are distinguished, so that in subsequent tests, it is possible to clarify which service data is tested based on these characteristics.

The business data definition phase is only executed when testing for the first time, or when new definition rules are generated.

The testing stage is the stage that every testing process needs to go through. The process is shown in Figure 1, including:

Step S11, receiving a test request, the test request includes: the service type identifier to be tested, the type identifier to be tested, and the configuration parameters to be tested, and the configuration parameters to be tested include at least: the number of nodes to be tested and the ID of the data unit to be tested ;

A host or processor in the power system executes the method. Firstly, the test request input by the tester is received. The test request includes the identification of the service type to be tested, the identification of the type to be tested and the configuration parameters to be tested. The identification of the service type to be tested and the identification of the type to be tested are preset and can be It is a letter or character corresponding to the business type or the type to be tested. When the character is received, it can be determined which test is performed on which business. Of course, the identifier can also be the name of a specific business type or test type.

The number of nodes that need to participate in the test process is set in the configuration parameter to be tested, and the specific data unit is determined by the identifier of the data unit to be tested.

Step S12, according to the tested service type, the tested type and the tested configuration parameters, configure the data unit corresponding to the tested data unit identifier in the power system;

This process is used to determine the type of business data, the number of nodes, and the identification of data units. For example, if the substation simulates 20 power load management business nodes, it needs to configure the IP address and port of each node and the IP address port of the general station. After connecting with the master station, the master station will choose which nodes to send power load management to. Information such as business message data, so that the power system can carry out the entire test process.

Further, the configuration parameters to be tested may also include: the number of services to be tested and the interval between services, so parameters such as the number of transaction simulation runs and the time interval of each service simulation need to be configured.

Step S13, generating service data corresponding to the tested service type according to the preset message format, message field definition and message sequence corresponding to the tested service type;

Determine the service type to be tested according to the service type identifier under test in step S11, and generate service data of the service type according to the predefined message format, message field definition and message timing corresponding to the service type.

Step S14, converting the business data into target business data according to preset rules, the target business data at least including the business data and information identifying the business type of the business data;

In the target business data, there is information identifying the type of business data included in the target business data, so that it is easy to identify which type of business data it is.

Step S15, according to the principle corresponding to the tested type, transmit the target service data between the source port and the destination port in the tested data unit;

According to different test types, set specific data transmission principles. For example, when the tested type is the maximum throughput test, it is necessary to set the rate and quantity of service data sent by the source port.

Step S16 , analyzing the transmitted data according to the tested type to obtain a test result.

In the power system broadband network performance testing method disclosed in this embodiment, business data in different formats is generated according to different business types, and the data transmission process of the business is simulated for testing, thereby solving the problem of single data flow in the prior art , which establishes a foundation for testing and evaluating the power service carrying capacity of the network, and meets the diverse requirements of power services.

In yet another power system broadband network performance testing method disclosed in the embodiment of the present invention, its basic flow is the same as that shown in Figure 1, which converts the service data corresponding to the tested service identifier into target service data according to preset rules The specific process is shown in Figure 2, including:

Step S21, expressing the business data using UDP protocol format;

Step S22, adding 12 bytes between the service data after the UDP header of the service data;

The purpose of adding 12 bytes here is to use the UDP protocol to simulate the TCP protocol, and make its length consistent with the TCP protocol data length.

Step S23, select a preset number of bytes from the 12 bytes, and mark the service type of the service data according to a preset rule.

In this embodiment, one of the bytes is selected to add the service type identifier.

In addition, the target business data also includes:

Service data length information, check information, service sequence number, service confirmation sequence number and retransmission identifier.

The specific business data format, as shown in Figure 3, 12 supplementary bytes mainly include 1-byte business type identifier, 1-byte business data length, 2-byte check digit, 2-byte business serial number, 2-byte Section business confirmation business sequence number, 2-byte time stamp, and 2-byte identification byte. The 2 identification bytes include 1 request connection identification, 1 retransmission identification, 1 confirmation identification, 1 end identification, and the remaining 12 bits are reserved.

In this embodiment, 12 characters are added between the business data after the UDP header of the business data to ensure that the simulated business transmission is also consistent with the business length of the actual business transmission and mark the business data, thereby ensuring the accuracy of the test results sex.

As shown in the foregoing embodiments, when generating service data corresponding to a service type, the number n _r of service data may be determined in various ways.

For example, it is assumed that the information generation process of the terminal unit FTU in the distribution automation system is a Poisson process, and the distribution of the number of information generated by the FTU is a Poisson distribution. The mathematical expectation (weighted average) of the number of information generated by the FTU can be obtained from the Poisson distribution.

Assuming that the business data occurs in the exponential distribution law of the average T _m time, each FTU generates one measurement information every T _m seconds on average, and each FTU generates one control information every T _g seconds, and finally assumes that the accident information is rarely generated, no Affects the transmission of the channel.

Based on the above assumptions, the time interval T _r at which the FTU generates information can be calculated. Assuming that within a period of time T, the total number of information generated by the FTU is n _r , the total number of information should be equal to the sum of the number of measurement service information n _m and the number of control information n _g generated during this period, that is:

n _r =n _m +n _g (Formula 1)

in ${\mathrm{no}}_r=\frac{T}{T_r},{\mathrm{no}}_m=\frac{T}{T_m},{\mathrm{no}}_g=\frac{T}{T_g}$ (Formula 2)

Substituting formula 2 into formula 1, we get:

$\frac{1}{T_r}=\frac{1}{T_m}+\frac{1}{T_g}$ (Formula 3)

Assuming that the time interval for FTU to generate a message is T _r , the probability distribution of FTU generating a message within the time period T is P{X=k}, which obeys the Poisson distribution. The parameter λ is known from the Poisson distribution as:

$\mathrm{\λ}=\frac{T}{T_r}$ (Formula 4)

Convert Equation 4 to the probability formula for the Poisson distribution

$P\{x=k\}=\frac{{\mathrm{\λ}}^k{e}^{-\mathrm{\λ}}}{k!},k=\mathrm{0,1,2},...$ (Formula 5)

have to:

$P\{x=k\}=\frac{{\left(\frac{T}{\mathrm{Tr}}\right)}^k{e}^{-\frac{T}{\mathrm{Tr}}}}{k!},k=\mathrm{0,1,2},...$ (Formula 6)

From the concept of mathematical expectation, it can be known that mathematical expectation is the weighted average of all possible values of random variable X, therefore, it is required to obtain the weight of the number of information generated by one FTU in the entire cycle T _p of each FTU polled by the master station The average value can be calculated using mathematical expectation:

${\mathrm{no}}_r=\mathrm{E.}\left[k\right]=\underset{K=0}{\overset{\∞}{\mathrm{\Σ}}}\mathrm{kP}\left(k\right)$ (Formula 7)

Substitute Equation 6 into Equation 7 to get:

${\mathrm{no}}_r=\underset{k=0}{\overset{\∞}{\mathrm{\Σ}}}\frac{{\left(\frac{T_P}{T_r}\right)}^k{e}^{-\frac{T_P}{\mathrm{Tr}}}}{k!}$ (Formula 8)

In this way, by studying the statistical characteristics of FTU generated information, the calculation formula of the number n _r of FTU generated information is obtained.

In addition to the above formula, it is assumed that the average T _r time of the FTU generates a message, and the polling cycle of the master station for all FTUs on the same line is T _p , so we can also derive another formula for calculating n _r

${\mathrm{no}}_r=\frac{T_p}{T_r}$ (Formula 9)

In this embodiment, n _r can be obtained by using formula 8, or n _r can be obtained by using formula 9, which can be selected according to the actual situation.

The test process of different service types to be tested will be introduced in detail below.

Take business success rate as an example. The business success rate in this embodiment is the proportion of successful business in the n times of business. Therefore, during the test, the tested configuration parameters include: the number of tested nodes and the tested data unit identifier, as well as The measured number of services n and the service interval t. Its overall process is similar to that shown in Figure 1, but the specific process is adjusted accordingly according to the type of test. And, according to the type to be tested, the process of analyzing the transmitted data and obtaining the test results is shown in Figure 4, including:

Step S41. Obtain the data transmitted in each tested process respectively, and analyze whether the business process is successful or failed;

Step S42, obtain business success times m _s and business failure times m _l ;

Step S43, obtain the test result according to the business success rate η=m _s /(m _s +m _l )*100%.

The process of analyzing the business process as success or failure is as follows:

In the case of analyzing that the transmitted data contains all the data packets of each stage in the business process and the data packets are all correct, the business is successful;

In the case where the analyzed data transmitted does not contain all the data packets in each stage of the service process or the data packets are not completely correct, the service fails.

Taking the business process shown in Figure 5 as an example, the business process is completed by the exchange of a series of messages 1-5. If the series of messages can be exchanged accurately, it means that the business is successful. On the contrary, if one of the messages If the file is lost or other errors occur, the service will fail. For example, the general call service of the power distribution automation service needs to be sent by the main station. Sent to the main station in sequence, and the transmission time interval is determined by the line parameters. Only when all these actions are completed can a business success be considered.

When the tested type is a maximum throughput test, specifically, according to the principle corresponding to the tested type, the target service data is transmitted between the source port and the destination port in the tested data unit The process includes:

Controlling the source port to send a predetermined amount of service data to the destination port at a currently set rate.

According to the tested type, the process of analyzing the transmitted data and obtaining the test results is shown in Figure 6, including:

Step S61, acquiring the amount of service data received by the destination port;

Step S62, judging whether the amount of business data received is less than a predetermined amount, if yes, execute step S63, if not, execute step S64;

Whether the amount of business data received is less than the predetermined amount has two results, less than, or equal to. The situation that it is greater than that will not occur, so when the amount of service data received is not less than the predetermined amount of service data, it means that the amount of service data received by the destination port is equal to the predetermined amount.

Step S63, reducing the current set rate by a predetermined value, controlling the source port to send the predetermined amount of service data at a rate reduced by the predetermined value, and returning to step S61;

Step S64, determining that the sending rate of the source port is the maximum throughput rate.

When the tested type is an end-to-end average delay test, according to the tested type, analyze the transmitted data, and obtain the test result as follows:

First, determine a preset data block group to be transmitted, and there are multiple data blocks in the transmission data block group;

After the source port and the destination port time synchronization, transmit the data blocks in the data block group to be transmitted in sequence; respectively record the time when the first bit of data in each data block leaves the source port and the last bit of data in the data block arrives at the destination port time; respectively obtain the end-to-end delay of each data block; determine the average end-to-end delay of each data block as the end-to-end average delay.

Taking one of the data blocks as an example, the time when the first bit of data in this data block leaves the source port is T ₀ , and the time when the last bit of data arrives at the destination port is T ₁ , then the end-to-end delay measured by this data block is T _ete =T ₁ -T ₀ .

When testing the round-trip delay, the time when the last bit of data in the data block arrives at the destination port is T ₁ , the destination port will feed back a confirmation frame to the source port, and record the time when the source port receives the confirmation frame as T _b . The round-trip time delay rtt _c =T ₁ -T _b .

In addition, in addition to the above test types, it also includes the test of the maximum number of concurrent connections. Set the number of services to be tested on the source port and destination port in the test configuration parameters, and the predetermined throughput rate of each service connection. Type, analyze the transmitted data, and get the specific process of test results as follows:

First establish a connection of one of the scheduled services, and after detecting that the business data reaches the predetermined throughput rate of the business, establish the connection of the next business, and when the business also reaches the predetermined throughput rate, establish the next business connection, so as to By analogy, until the newly established service connections cannot reach the predetermined throughput rate, at this time, the number of currently established service connections is the maximum number of concurrent connections.

In addition, it also includes the system reliability test, the number of services tested in the test configuration parameters and the service interval. Record the continuous and stable running time of each business, and then take the average of multiple running times as the reliable running time of the system.

The embodiment of the present application is not limited to only include the above-mentioned test types, and all system performance test types applied in the power system can be realized by the embodiments disclosed in the present application, and details will not be repeated here. Moreover, the above test results can also be output and displayed through output devices such as monitors or printers, so that testers can evaluate the performance of the power system based on this.

Further, in order to realize the authenticity of the test process, in each of the above embodiments, before the step of transmitting the target service data between the tested data units, the data packets arriving at the destination port within a fixed time can be Obey the principle of Poisson distribution, generate background data packets and transmit them.

That is, background traffic is added to each test process to consume network bandwidth, making the process of simulating business more realistic. The content of this background flow can be taken from a random flow file. According to the analysis of the data packet arrival process: according to the binomial distribution, the probability of k data packets arriving within time t is:

$P_t(x=k)=C_{\mathrm{no}}^k{\left(\mathrm{\β\Δt}\right)}^k{(1-\mathrm{\β\Δt})}^{\mathrm{no}-k}$ (Formula 12)

in $C_{\mathrm{no}}^k=\frac{\mathrm{no}!}{k!(\mathrm{no}-k)!};$

Further examination of Equation 12. When n→∞, The binomial distribution approximately obeys the Poisson distribution, and finally we get:

$P_t(x=k)=\frac{e^{-\mathrm{\βt}}{\left(\mathrm{\βt}\right)}^k}{k!}$ (Formula 13)

Equation 13 shows that the probability P _t (x=k) of arriving k data packets within time t obeys the Poisson distribution. Moreover, the packet arrival time interval obeys the uniform distribution.

Corresponding to the power system broadband network performance test method disclosed in the above embodiments, the present application also discloses a power system broadband network performance test system, the structure of which is shown in Figure 7, including:

The business data message definition module 71 is used to respectively set the corresponding message format, message field and timing for each service;

The receiving module 72 is configured to receive a test request, wherein the test request includes: the tested service type identifier, the tested type identifier and the tested configuration parameters, and the tested configuration parameters include at least: the number of tested nodes and the tested data unit identifier,

The configuration module 73 is configured to configure the data unit corresponding to the tested data unit identifier in the power system according to the tested service type, the tested type and the tested configuration parameters;

The target service data generation module 74 is used for generating the service data corresponding to the test service type according to the preset message format corresponding to the test service type, message field definition and message timing, and will be used with The business data is converted into target business data according to preset rules, and the target business data includes at least the business data and information identifying the business type of the business data;

A data transmission module 75, configured to transmit the target service data between the source port and the destination port in the tested data unit according to the principle corresponding to the tested type;

The result analysis module 76 is configured to analyze the transmitted data according to the tested type to obtain test results.

The power system broadband network performance testing system disclosed in this embodiment generates business data in different formats according to different business types, and simulates the data transmission process of the business for testing, thereby solving the problem of single data flow in the prior art. It establishes a foundation for testing and evaluating the power service carrying capacity of the network, and meets the diverse requirements of power services.

Specifically, the configuration module 73 can be divided into a business parameter configuration submodule and a system parameter configuration submodule, wherein the business parameter configuration submodule is used for testing the number of times of business, the business interval, the number of nodes to be tested and The tested data unit identifier, etc. configure the tested data unit. The system parameter configuration sub-module configures the IP address and port number of the system.

In order to enable the testers to know the test results conveniently, a test result display module 77 may also be included, specifically, it may be a display screen.

Further, in order to realize the authenticity of the test process, a background traffic generation module is also included, which is used to generate and transmit background data packets according to the principle that the data packets arriving at the destination port within a fixed time obey the Poisson distribution.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other. As for the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and for the related part, please refer to the description of the method part.

The above description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. a power system broadband network performance test methods, it is characterised in that being applied to power system, the method includes: business datum definition phase and test phase；

The described business datum definition phase includes:

Message format, message field (MFLD) and the sequential that respectively each traffic set is corresponding；

Described test phase includes:

Receiving test request, described test request includes: tested type of service mark, tested type identification and tested configuration parameter, at least includes in described tested configuration parameter: tested nodes and tested data cell mark；

According to tested type of service, tested type and tested configuration parameter, configure tested data cell corresponding with described tested data cell mark in described power system；

The business datum corresponding with described tested type of service is generated according to message format corresponding to tested type of service set in advance and described, message field (MFLD) definition and message sequential；

Described business datum is converted to target service data according to preset rules, including at least having described business datum and identifying the information of type of service of described business datum in described target service data；

According to the principle corresponding with described tested type, will be transmitted between described target service data source port in described tested data cell and destination interface；

According to described tested type, analyze the data of described transmission, obtain test result.

2. method according to claim 1, it is characterised in that described tested configuration parameter also includes: tested business number of times and service interval；

Described tested data cell mark includes: the port numbers of described tested data cell or IP address.

3. method according to claim 2, it is characterised in that the process that the business datum corresponding with described tested type of service is converted to target service data according to preset rules is included:

Udp protocol form is utilized to be indicated described business datum；

12 bytes are added between business datum after the UDP head of described business datum；

Described 12 bytes choose predetermined number byte, the type of service of business datum described in preset rules labelling.

4. method according to claim 3, it is characterised in that also include in described target service data:

Business datum length information, check information, traffic sequence number, business confirm serial number and retransmit mark.

5. method according to claim 4, it is characterised in that the definition of the described message format corresponding according to tested type of service set in advance and described, message field (MFLD) and message sequential generate the number n of the business datum corresponding with described tested type of service_rDetermine according to following formula:

Wherein, T_rThe interval of information, T is produced for tested data cell_pFor main website to each tested data cell polling cycle.

6. method according to claim 5, it is characterised in that when described tested type is service success rate test, described tested business number of times is n and when described service interval is t, described analyzing the data of described transmission according to described tested type, the process obtaining test result includes:

Obtaining the data of transmission in each tested process respectively, analyzing this business procedure is success or failure；

Acquisition business number of success m_sWith service fail number of times m_l；

According to service success rate η=m_s/(m_s+m_l) * 100% obtain test result；

The process that this business of described analysis is success or failure includes:

The data analyzing described transmission all include the data message in each stage in this business procedure and described data message all correct, this business success；

The data analyzing described transmission all do not include the data message in each stage in this business procedure or described data message not exclusively correct, this service fail.

7. method according to claim 5, it is characterized in that, when described tested type is maximum throughput rate test, according to the principle corresponding with described tested type, the process being transmitted between described target service data source port in described tested data cell and destination interface is included:

Control described source port and send the business datum of predetermined quantity to destination interface according to the current speed that sets；

Described analyzing the data of described transmission according to described tested type, the process obtaining test result includes:

Obtain the business datum amount that described destination interface receives；

When the business datum amount of described reception is less than described predetermined quantity, after turning described current setting speed down predetermined value, control described source port and send the business datum of described predetermined quantity according to the speed after reducing predetermined value, and return the step performing to obtain the business datum amount that described destination interface receives, continue executing with, until the business datum amount that described destination interface receives is equal with described predetermined quantity；

Determine that, when the business datum amount that described destination interface receives is equal with described predetermined quantity, the transmission rate of source port is maximum throughput rate.

8. method according to claim 5, it is characterised in that when described tested type is the test of end-to-end average retardation, according to described tested type, analyzing the data of described transmission, the process obtaining test result includes:

Determine data to be transmitted block group set in advance described data to be transmitted block group has multiple data block；

After source port and destination interface time synchronized, transmit the data block in described data to be transmitted block group successively；

Record the first bit data in each data block respectively to leave last bit data in time of source port and this data block and arrive the time of destination interface；

Obtain the end-to-end time delay of each data block respectively；

The end-to-end time delay meansigma methods determining each data block is end-to-end average retardation.

9. the method according to any one in claim 1-8, it is characterised in that also include before being transmitted step between described target service data source port in described tested data cell and destination interface:

Obey the principle of Poisson distribution according to the packet arriving destination interface in the set time, generate background data bag and be transmitted.

10. a power system broadband network Performance Test System, it is characterised in that be applied to power system, this test system includes:

Business datum message definition module, for message format, message field (MFLD) and sequential that respectively each traffic set is corresponding；

Receiver module, for receiving test request, described test request includes: tested type of service mark, tested type identification and tested configuration parameter, at least includes in described tested configuration parameter: tested nodes and tested data cell mark

Configuration module, for according to tested type of service, tested type and tested configuration parameter, configuring tested data cell corresponding with described tested data cell mark in described power system；

Target service data generation module, the business datum corresponding with described tested type of service is generated for the message format corresponding according to tested type of service set in advance and described, message field (MFLD) definition and message sequential, target service data will be converted to according to preset rules, including at least having described business datum and identifying the information of type of service of described business datum in described target service data with described business datum；

Data transmission module, for according to the principle corresponding with described tested type, will be transmitted between described target service data source port in described tested data cell and destination interface；

Interpretation of result module, for according to described tested type, analyzing the data of described transmission, obtain test result.