CN112929914A - System and method for network link simulation auxiliary test - Google Patents
System and method for network link simulation auxiliary test Download PDFInfo
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- H04W24/06—Testing, supervising or monitoring using simulated traffic
Abstract
The system comprises a test terminal, a network agent and a network operation service provider, wherein an infinite network card is installed in the network agent, a network access point program is configured in the network agent, the test terminal realizes wireless network connection through the network agent, and the network agent is accessed to a network corresponding to the network operation service provider in a wired connection mode; after the simulation auxiliary test is started, the test terminal continuously initiates a target website request, and the network agent receives and sends the request; the network agent is provided with a flow control tool, receives a test instruction input from the outside in the process of continuously sending a request by the test terminal, and carries out simulation auxiliary test according to the test instruction, wherein the test instruction comprises at least one of packet loss rate, bandwidth control and network delay. The method and the device aim to provide a rapid, simple and convenient network link simulation auxiliary test scheme.
Description
Technical Field
The present application relates to the field of communications technologies, and in particular, to a system and a method for network link simulation aided test.
Background
WiFi surfing means that mobile terminals such as mobile phones and notebooks are connected with a router through a WiFi wireless module, then are accessed to the Internet and are connected to a cloud operator server, and finally, communication with cloud software on the server is successful, and equipment communication failure can be caused when any link in the middle is abnormal.
With the popularization of internet technology, more and more devices are connected through a network, and various connection instability problems often occur when the devices are connected in actual operation, and the instability problems bring great challenges to an operation team. The problem that any link of the whole Wifi internet access link can generate unpredictable problems can be packet loss, large delay and limited bandwidth, and if the test equipment cannot comprehensively process error scenes in the research and development process, various unpredictable connection instability can be generated in the actual operation of the equipment.
Because the problems of the real whole link are unpredictable, and the error scenes are difficult to verify by using a real link in the development process, the whole real link is simulated by means of a simulation method in order to comprehensively verify that the equipment correctly processes the error scenes. Therefore, how to provide a fast and simple network link simulation auxiliary test scheme is an urgent problem to be solved.
Disclosure of Invention
The present application mainly aims to provide a system and a method for network link simulation aided test, in order to provide a fast, simple and convenient network link simulation aided test scheme.
To achieve the above object, according to a first aspect of the present application, a system for network link simulation aided test is provided.
The system for simulating the auxiliary test of the network link comprises: the system comprises a test terminal, a network agent and a network operation service provider, wherein an infinite network card is installed in the network agent, a network access point program is configured in the network agent, the test terminal realizes wireless network connection through the network agent, and the network agent is accessed to a network corresponding to the network operation service provider in a wired connection mode;
after the simulation auxiliary test is started, the test terminal continuously initiates a target website request, and the network agent receives and sends the request; the network agent is provided with a flow control tool, receives a test instruction input from the outside in the process of continuously sending a request by the test terminal, and carries out simulation auxiliary test according to the test instruction, wherein the test instruction comprises at least one of packet loss rate, bandwidth control and network delay.
Optionally, the network proxy further includes an instruction receiving module:
and the instruction receiving module is used for receiving externally input agent configuration so that the test terminal realizes a network corresponding to a wireless access network operation service provider through the network access point program.
Optionally, the instruction receiving module is further configured to:
and receiving a test instruction input from the outside and an execution rule of the test instruction.
Optionally, the execution rule includes:
executing according to the execution time corresponding to the test instruction; and/or the presence of a gas in the gas,
executing according to the input sequence of the test instructions; and/or the presence of a gas in the gas,
and executing according to the priority level of the test instruction.
Optionally, the network agent is a server of a Linux system.
Optionally, the system further includes a test result analysis end, configured to display the flow and the result of the tcset execution instruction.
To achieve the above object, according to a second aspect of the present application, another method for network link simulation aided test is provided. The method is applied to the system of any one of the above first aspect, and comprises:
after the simulation auxiliary test is started, the test terminal realizes wireless internet access through a network agent, and the test terminal continuously initiates a target website request;
the network agent sends out the request through the network access point;
the network agent receives a test instruction input from the outside, and carries out simulation auxiliary test according to the test instruction, wherein the test instruction comprises at least one of packet loss rate, bandwidth control and network delay.
Optionally, the receiving, by the network agent, the externally input test instruction includes:
and receiving a test instruction input from the outside and an execution rule of the test instruction.
Optionally, the execution rule includes: executing according to the execution time corresponding to the test instruction; or, executing according to the input sequence of the test instructions; or, executing according to the priority level of the test instruction;
the simulation auxiliary test according to the test instruction comprises the following steps:
the test instructions are executed according to the execution rules.
Optionally, if the test instruction is packet loss, performing the simulation auxiliary test according to the test instruction includes:
calculating packet loss quantity according to packet loss rate by taking the quantity of the data packets sent by the test end as a base number, performing packet loss processing, and sending out the data packets subjected to packet loss processing, wherein the data packets are corresponding to the target website request;
if the test instruction is bandwidth control, the performing of the simulation auxiliary test according to the test instruction includes:
after receiving a data packet sent by a test end, sending out the data packet by taking the bandwidth limited by the bandwidth control as a single transmission size;
if the test instruction is network delay, the performing of the simulation auxiliary test according to the test instruction comprises:
and after receiving the data packet sent by the test end, sending the data packet after delaying according to the delay time set by the network delay.
In the embodiment of the application, in the system and the method for network link simulation auxiliary test, a test terminal, a network agent and a network operation service provider are provided, wherein an infinite network card is installed in the network agent, a network access point program is configured in the network agent, the test terminal realizes wireless network connection through the network agent, and the network agent accesses to a network corresponding to the network operation service provider in a wired connection mode; after the simulation auxiliary test is started, the test terminal continuously initiates a target website request, and the network agent receives and sends the request; the network agent is provided with a flow control tool, receives a test instruction input from the outside in the process of continuously sending a request by the test terminal, and carries out simulation auxiliary test according to the test instruction, wherein the test instruction comprises at least one of packet loss rate, bandwidth control and network delay. It can be seen that, in the embodiment of the application, the test terminal implements wireless internet access through the network agent, and a tester can input a simple test instruction through the flow control tool in the network agent to implement simulation tests of packet loss rate, bandwidth control and network delay, so that the method is very convenient and can quickly and effectively simulate all extreme network link conditions which may occur in actual conditions.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, serve to provide a further understanding of the application and to enable other features, objects, and advantages of the application to be more apparent. The drawings and their description illustrate the embodiments of the invention and do not limit it. In the drawings:
fig. 1 is a schematic structural diagram of a system for simulation-aided testing of a network link according to an embodiment of the present application;
fig. 2 is a flowchart of a method for network link simulation aided test according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, 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 only partial embodiments of the present application, but not all embodiments. 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 the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the application described herein may be used. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
According to an embodiment of the present application, there is provided a system for network link simulation aided test, as shown in fig. 1, the system includes: the test terminal 11, the network agent 12, the network operation service provider 13, install the unlimited network card in the network agent 12, and dispose the network access point procedure, the test terminal 11 realizes the wireless network connection through the network agent 12, the network agent 12 inserts the network that the network operation service provider 13 corresponds through the mode of wired connection.
Based on the system structure of the network link simulation auxiliary test, the description of the realization of the simulation auxiliary test is carried out: after the simulation auxiliary test is started, the test terminal 11 continuously initiates a target website request, and the network agent 12 receives and sends the request; the network agent 12 is installed with a flow control tool, and in the process of continuously sending a request by the test terminal 11, the network agent 12 receives a test instruction input from the outside, and performs a simulation auxiliary test according to the test instruction, where the test instruction includes at least one of packet loss rate, bandwidth control, and network delay.
It should be noted that the target website is a website to be accessed by the test terminal 11, and the website is usually a website of the user himself, and after the development is completed, what the actual performance of different terminals under test is in different network link environments is. The test terminal may be a terminal capable of accessing a target website through a wireless network in practical situations, such as a mobile phone, an iPad, a smart band, a notebook, and the like. The test terminal in fig. 1 is a mobile phone, which is an exemplary illustration, and the practical solution is not limited by fig. 1.
The network agent 12 is a server of a Linux operating system installed for testing, a traffic controller TC (traffic control) is used for controlling the traffic of a Linux kernel in the Linux operating system, the policy of the TC is very complex, and the embodiments of the present application mainly simulate the conditions of bandwidth limitation, packet loss and delay in a wireless network link by using the characteristics of the TC. The flow control tool installed in the network proxy 12 is specifically tcset software, which is not self-contained in the Linux system kernel and needs to be installed separately.
The network agent 12 is to enable the test terminal 11 to wirelessly surf the internet through the network agent 12, so a network card needs to be installed before testing, and a network access point program is configured, a specific network access point program may be hostapd, and the network agent 12 accesses the network in a wired manner, so that when the test terminal 11 initiates a target website request (a request for accessing a target website), the network agent 12 can wirelessly surf the internet and access the target website. It should be further noted that, in practical applications, after installing the network card and the network access point program, proxy configuration of the network proxy 12 is also needed to implement that the test terminal 11 performs wireless internet access through the network proxy 12.
The system structure can be simulated and tested in an auxiliary mode after being built and configured, in the testing process, the testing terminal 11 can keep the continuous initiation of the request, a tester can input a corresponding testing instruction according to the testing requirement by using the flow control tool, and the testing instruction is received by an instruction receiving module in the network agent. The input of the test instruction is explained: for example, if the test requirement is that the packet loss rate is 0.5%, the input test instruction may be tcset eth0 — loss 0.5%; if the test requirement is that the bandwidth control is 100Kbps, the input test instruction can be tcset eth0 — rate 100 Kbps; if the test requirement is that the network delay is 10s, the input test instruction may be tcset eth 0-delay 10 sec. One or more test instructions may be input simultaneously. Specifically, for different test instructions, the specific execution process is also different, and the following description is made separately:
if the test instruction is packet loss rate, performing simulation auxiliary test according to the test instruction: calculating the packet loss quantity according to the packet loss rate by taking the quantity of the data packets sent by the test end as a base number, performing packet loss processing, sending out the data packets subjected to packet loss processing, wherein the data packets are corresponding data packets requested by a target website;
if the test instruction is bandwidth control, the simulation auxiliary test according to the test instruction is as follows: after receiving a data packet sent by a test end, sending out the data packet by taking the bandwidth limited by the bandwidth control as a single transmission size;
if the test instruction is network delay, the simulation auxiliary test according to the test instruction is as follows: and after receiving the data packet sent by the test end, sending the data packet after delaying according to the delay time set by the network delay.
Further, when the input instruction is a plurality of test instructions, an execution rule of the test instructions may also be input at the same time, and the specific execution rule may be executed according to an execution time corresponding to the test instruction; and/or, executing according to the input sequence of the test instructions; and/or according to the priority level of the test instructions. When an execution rule is input, the test instruction is executed according to the execution rule. For example, each test instruction may set an execution time, and then execution according to the execution time corresponding to the test instruction may be implemented; each test instruction may be set to an execution priority and then execution may be achieved in order of the priority level of the test instruction.
After the test instruction is executed, it is possible to simply judge whether the test terminal can normally access the target website in the case of a poor network link by observing the performance of the test terminal 11. In addition, if the test result is required to be viewed and analyzed in detail, a test result analysis end can be added for displaying the flow and the result of the tcset execution instruction for the relevant personnel to analyze.
From the above description, it can be seen that in the system for network link simulation aided test according to the embodiment of the present application, a test terminal, a network broker, and a network operation facilitator are provided, wherein an infinite network card is installed in the network broker, and a network access point program is configured in the network broker, the test terminal implements wireless network connection through the network broker, and the network broker accesses to a network corresponding to the network operation facilitator through a wired connection manner; after the simulation auxiliary test is started, the test terminal continuously initiates a target website request, and the network agent receives and sends the request; the network agent is provided with a flow control tool, receives a test instruction input from the outside in the process of continuously sending a request by the test terminal, and carries out simulation auxiliary test according to the test instruction, wherein the test instruction comprises at least one of packet loss rate, bandwidth control and network delay. It can be seen that, in the embodiment of the application, the test terminal is enabled to surf the internet through the network proxy, and the flow control tool in the network proxy can realize the simulation test of packet loss rate, bandwidth control and network delay by inputting a simple test instruction, so that the method is very convenient, and can quickly and effectively simulate all extreme network link conditions which may occur in actual conditions.
According to an embodiment of the present application, there is also provided a method for network link simulation aided test applied in the system in fig. 1, as shown in fig. 2, the method includes:
and S1, after the simulation auxiliary test is started, the test terminal realizes wireless internet access through the network agent and continuously initiates a target website request.
S2, the network proxy sends out the request through the network access point.
And S3, the network agent receives a test instruction input from the outside, and performs simulation auxiliary test according to the test instruction, wherein the test instruction comprises at least one of packet loss rate, bandwidth control and network delay.
The step S3 of receiving the externally input test instruction by the network agent may specifically be:
and receiving a test instruction input from the outside and an execution rule of the test instruction. The execution rule may be: executing according to the execution time corresponding to the test instruction; or, executing according to the input sequence of the test instructions; or, executing according to the priority level of the test instruction;
for the case of inputting the execution rule including the test instruction and the test instruction, the specific simulation auxiliary test according to the test instruction is as follows: the test instructions are executed according to the execution rules.
For the execution principle of the test instruction, the packet loss rate, the bandwidth control, and the network delay are respectively used as examples to explain:
if the test instruction is packet loss rate, performing simulation auxiliary test according to the test instruction: calculating the packet loss quantity according to the packet loss rate by taking the quantity of the data packets sent by the test end as a base number, performing packet loss processing, sending out the data packets subjected to packet loss processing, wherein the data packets are corresponding data packets requested by a target website;
if the test instruction is bandwidth control, the simulation auxiliary test according to the test instruction is as follows: after receiving a data packet sent by a test end, sending out the data packet by taking the bandwidth limited by the bandwidth control as a single transmission size;
if the test instruction is network delay, the simulation auxiliary test according to the test instruction is as follows: and after receiving the data packet sent by the test end, sending the data packet after delaying according to the delay time set by the network delay.
Furthermore, the test instruction in the network agent can be manually input and can be directly input in an automatic input mode, so that the working efficiency can be improved. And a corresponding test instruction can be automatically generated after selection by setting a selection mode of packet loss rate, bandwidth value and network delay, and the working efficiency can also be improved. For example, if the user selects the bandwidth value 90, a test command tcset eth 0-rate 100Kbps is automatically generated; when the user selects the network delay of 11s, a test instruction tcset eth 0-delay 11sec is automatically generated; when the user selects the packet loss rate to be 0.7 percent, the test instruction tcset eth0, which is less than 0.7 percent, is automatically generated
Further, for the structure including the test result analysis end in the system embodiment, the network agent may also send the flow of the test instruction execution and the result to the test result analysis end for display, so as to allow the relevant personnel to perform further analysis.
From the above description, it can be seen that, in the method for network link simulation aided test according to the embodiment of the present application, a test terminal, a network broker, and a network operation facilitator are provided, wherein an infinite network card is installed in the network broker, and a network access point program is configured in the network broker; after the simulation auxiliary test is started, the test terminal continuously initiates a target website request, and the network agent receives and sends the request; the network agent is provided with a flow control tool, receives a test instruction input from the outside in the process of continuously sending a request by the test terminal, and carries out simulation auxiliary test according to the test instruction, wherein the test instruction comprises at least one of packet loss rate, bandwidth control and network delay. It can be seen that, in the embodiment of the application, the test terminal is enabled to surf the internet through the network proxy, and the flow control tool in the network proxy can realize the simulation test of packet loss rate, bandwidth control and network delay by inputting a simple test instruction, so that the method is very convenient, and can quickly and effectively simulate all extreme network link conditions which may occur in actual conditions.
It should be noted that the steps illustrated in the flowcharts of the figures may be performed in a computer system such as a set of computer-executable instructions and that, although a logical order is illustrated in the flowcharts, in some cases, the steps illustrated or described may be performed in an order different than presented herein.
Finally, beneficial effects of the network link simulation auxiliary test scheme of the application are summarized as follows:
1. dynamically setting network abnormal condition, packet loss rate, time delay and bandwidth limitation, facilitating test
2. The configuration is simple, and the test work can be finished by only one command.
It will be apparent to those skilled in the art that the modules or steps of the present application described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and they may alternatively be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, or fabricated separately as individual integrated circuit modules, or fabricated as a single integrated circuit module from multiple modules or steps. Thus, the present application is not limited to any specific combination of hardware and software.
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 (10)
1. A system for simulation-aided testing of a network link, the system comprising: the system comprises a test terminal, a network agent and a network operation service provider, wherein an infinite network card is installed in the network agent, a network access point program is configured in the network agent, the test terminal realizes wireless network connection through the network agent, and the network agent is accessed to a network corresponding to the network operation service provider in a wired connection mode;
after the simulation auxiliary test is started, the test terminal continuously initiates a target website request, and the network agent receives and sends the request; the network agent is provided with a flow control tool, receives a test instruction input from the outside in the process of continuously sending a request by the test terminal, and carries out simulation auxiliary test according to the test instruction, wherein the test instruction comprises at least one of packet loss rate, bandwidth control and network delay.
2. The system for network link simulation aided test of claim 1, wherein the network agent further comprises an instruction receiving module:
and the instruction receiving module is used for receiving externally input agent configuration so that the test terminal realizes a network corresponding to a wireless access network operation service provider through the network access point program.
3. The system for network link simulation aided test of claim 1, wherein the instruction receiving module is further configured to:
and receiving a test instruction input from the outside and an execution rule of the test instruction.
4. The system for network link simulation aided testing of claim 3, wherein the execution rules comprise:
executing according to the execution time corresponding to the test instruction; and/or the presence of a gas in the gas,
executing according to the input sequence of the test instructions; and/or the presence of a gas in the gas,
and executing according to the priority level of the test instruction.
5. The system for network link simulation aided test as claimed in claim 1, wherein the network agent is a server of a Linux system.
6. The system for network link simulation aided test as claimed in claim 1, further comprising a test result analyzing end for displaying the flow and result of tcset executed instruction.
7. A method for network link simulation aided test, which is applied to the system of any one of the above claims 1 to 6, and comprises:
after the simulation auxiliary test is started, the test terminal realizes wireless internet access through a network agent, and the test terminal continuously initiates a target website request;
the network agent sends out the request through the network access point;
the network agent receives a test instruction input from the outside, and carries out simulation auxiliary test according to the test instruction, wherein the test instruction comprises at least one of packet loss rate, bandwidth control and network delay.
8. The method of claim 7, wherein the network agent receiving externally inputted test instructions comprises:
and receiving a test instruction input from the outside and an execution rule of the test instruction.
9. The method of network link simulation aided test of claim 8, wherein the execution rule comprises: executing according to the execution time corresponding to the test instruction; or, executing according to the input sequence of the test instructions; or, executing according to the priority level of the test instruction;
the simulation auxiliary test according to the test instruction comprises the following steps:
the test instructions are executed according to the execution rules.
10. The method according to claim 7, wherein if the test command indicates packet loss probability, the performing the simulation aided test according to the test command includes:
calculating packet loss quantity according to packet loss rate by taking the quantity of the data packets sent by the test end as a base number, performing packet loss processing, and sending out the data packets subjected to packet loss processing, wherein the data packets are corresponding to the target website request;
if the test instruction is bandwidth control, the performing of the simulation auxiliary test according to the test instruction includes:
after receiving a data packet sent by a test end, sending out the data packet by taking the bandwidth limited by the bandwidth control as a single transmission size;
if the test instruction is network delay, the performing of the simulation auxiliary test according to the test instruction comprises:
and after receiving the data packet sent by the test end, sending the data packet after delaying according to the delay time set by the network delay.
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