CN112769627A

CN112769627A - Network environment simulation method, system and computer program product

Info

Publication number: CN112769627A
Application number: CN202110152485.6A
Authority: CN
Inventors: 许文渊
Original assignee: Alibaba Group Holding Ltd
Current assignee: Alibaba Group Holding Ltd
Priority date: 2021-02-03
Filing date: 2021-02-03
Publication date: 2021-05-07
Anticipated expiration: 2041-02-03
Also published as: CN112769627B

Abstract

The embodiment of the application provides a network environment simulation method, a system and a computer program product. In the embodiment of the application, the first application and the second application are installed on the same terminal, and the first application and the server can perform data interaction through the second application. The first application can acquire the network request characteristic information and transmit the network request characteristic information to the second application; the second application can analyze the service characteristics of the data packet from the data packet interacted between the first application and the service end; matching the service characteristics of the data packet with the service characteristics included in the network request characteristic information to obtain target service characteristics corresponding to the service characteristics of the data packet; and processing the data packet according to the network configuration information corresponding to the target service characteristics to simulate the network environment required by the target service characteristics, thereby realizing the refined simulation of the service-level network environment and refining the granularity of the simulation of the network environment.

Description

Network environment simulation method, system and computer program product

Technical Field

The present application relates to the field of internet technologies, and in particular, to a method, a system, and a computer program product for simulating a network environment.

Background

As more and more application software (APP) need to interact with a server deployed in the cloud so as to provide better experience for users, network transmission capability between the application software and the server is used as a key index for measuring application performance, and correlation between technical indexes and experience indexes needs to be found from the perspective of function quality guarantee and user experience. In order to enable the formally released application software to obtain good user experience, the application software needs to be tested before being released, and the test is generated for testing the network transmission capability and corresponding network simulation tool application.

The existing network simulation technology is generally in a form of 'one-off', that is, network environments simulated for all services carried by application software are the same, but the inventor of the present application finds that different services carried by the same application software have different requirements for network transmission capability, and the 'one-off' mode cannot accurately and finely evaluate the network transmission capability of the application software.

Disclosure of Invention

Aspects of the present application provide a method, a system, and a computer program product for network environment simulation, so as to implement a refined simulation of a service-level network environment and refine the granularity of the network environment simulation.

An embodiment of the present application provides a network environment simulation system, including: a terminal and a server; the terminal is provided with a first application and a second application; the first application and the server carry out data interaction through the second application;

the first application is used for acquiring the network request characteristic information and transmitting the network request characteristic information to the second application;

the second application is used for receiving the network request characteristic information transmitted by the first application and analyzing the service characteristics of the data packet from the data packet interacted between the first application and the service end; matching the service characteristics of the data packet with the service characteristics included in the network request characteristic information to obtain target service characteristics corresponding to the service characteristics of the data packet;

and processing the data packet according to the network configuration information corresponding to the target service characteristic so as to simulate the network environment required by the target service characteristic.

The embodiment of the present application further provides a network environment simulation method, including:

acquiring network request characteristic information transmitted by a first application;

receiving a data packet interacted between the first application and a server;

analyzing the service characteristics of the data packet from the data packet;

matching the service characteristics of the data packet with the service characteristics included in the network request characteristic information to obtain target service characteristics corresponding to the service characteristics of the data packet;

An embodiment of the present application further provides a computer program product, which includes: a computer program; the computer program, when executed by a processor, implements the steps in the network environment simulation method described above.

An embodiment of the present application further provides a computer device, including: a memory and a processor; wherein the memory is used for storing a computer program;

the processor is coupled to the memory for executing the computer program for performing the steps of the network environment simulation method described above.

Embodiments of the present application also provide a computer-readable storage medium storing computer instructions, wherein the computer instructions, when executed by one or more processors, cause the one or more processors to perform the steps of the network environment simulation method.

In the embodiment of the application, the first application and the second application are installed on the same terminal, and the first application and the server can perform data interaction through the second application. The first application can acquire the network request characteristic information and transmit the network request characteristic information to the second application; therefore, the second application can analyze the service characteristics of the data packet from the data packet interacted between the first application and the service end; matching the service characteristics of the data packet with the service characteristics included in the network request characteristic information to obtain target service characteristics corresponding to the service characteristics of the data packet; and processing the data packet according to the network configuration information corresponding to the target service characteristics to simulate the network environment required by the target service characteristics, thereby realizing the refined simulation of the service-level network environment and refining the granularity of the simulation of the network environment.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1a is a schematic structural diagram of a network environment simulation system according to an embodiment of the present application;

FIG. 1b is a schematic diagram of a conventional scheme network environment simulation process;

fig. 1c and fig. 1d are schematic diagrams of a network environment simulation process provided by the embodiment of the present application;

fig. 2 is a schematic flowchart of a network environment simulation method according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a computer device according to an embodiment of the present application.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the 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.

The existing network simulation technology is generally in a 'one-off' form, that is, the network environment for simulating all services carried by application software is the same, and the network simulation of the specified services cannot be refined. In some embodiments of the present application, the first application and the second application are installed on the same terminal, and the first application and the server may perform data interaction through the second application. The first application can acquire the network request characteristic information and transmit the network request characteristic information to the second application; therefore, the second application can analyze the service characteristics of the data packet from the data packet interacted between the first application and the service end; matching the service characteristics of the data packet with the service characteristics included in the network request characteristic information to obtain target service characteristics corresponding to the service characteristics of the data packet; and processing the data packet according to the network configuration information corresponding to the target service characteristics to simulate the network environment required by the target service characteristics, thereby realizing the refined simulation of the service-level network environment and refining the granularity of the simulation of the network environment.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

It should be noted that: like reference numerals refer to like objects in the following figures and embodiments, and thus, once an object is defined in one figure or embodiment, further discussion thereof is not required in subsequent figures and embodiments.

Fig. 1a is a schematic structural diagram of a network environment simulation system according to an embodiment of the present application. As shown in fig. 1a, the system comprises: a terminal 11 and a server 12.

In this embodiment, the terminal 11 refers to a computer device used by a user and having functions of computing, accessing internet, communicating and the like required by the user, and may be, for example, a smart phone, a tablet computer, a personal computer, a wearable device and the like. The terminal 11 typically comprises at least one processing unit and at least one memory. The number of processing units and memories depends on the configuration and type of the terminal 11. The Memory may include volatile, such as RAM, non-volatile, such as Read-Only Memory (ROM), flash Memory, etc., or both. The memory typically stores an Operating System (OS), one or more application software programs, such as various service software corresponding to the server 12, and program data.

In the present embodiment, the terminal 11 is installed with the first application a. The first application a mainly refers to software that can implement service functions required by a user. In the present embodiment, the type of service that the first application a can provide is not limited. Alternatively, the first application a may be a map service type application, and may provide a navigation service, a positioning service, a rendering service, a route planning service, and the like. The first application a may also be an instant messaging type application, an online shopping type application, an e-commerce type application, a social type application, a video type application, and the like. The first application a may be an APP, a client, a web page, or the like.

Correspondingly, the server 12 mainly refers to a server device of the service platform of the first application a. The server 12 can perform data management, respond to the service request of the terminal 11, and provide the service related to the service request for the user, and generally has the capability of undertaking and guaranteeing the service. The server 12 may be a single server device, a cloud server array, or a Virtual Machine (VM) running in the cloud server array. The service end 12 may also refer to other computing devices with corresponding service capabilities, such as a terminal (running a service program) such as a computer.

Wherein, the service end 12 and the terminal 11 can be connected wirelessly or by wire. Optionally, the service end 12 may be communicatively connected to the terminal 11 through a mobile network, and accordingly, the network format of the mobile network may be any one of 2G (gsm), 2.5G (gprs), 3G (WCDMA, TD-SCDMA, CDMA2000, UTMS), 4G (LTE), 4G + (LTE +), 5G, WiMax, and the like. Alternatively, the service end 12 may also be communicatively connected to the terminal 11 through bluetooth, WiFi, infrared, or the like.

In practical applications, before an application program is released, the application program needs to be tested to improve the reliability of the application program. In testing an application, in addition to testing the code logic of the application, in some cases, it is necessary to test the actual running function of the application. The network transmission capability is used as a key index for measuring the application program performance, and the correlation between the technical index and the experience index needs to be searched from the perspective of function quality guarantee and the user experience. In order to obtain the experience of the online user, the network environment where the online user is located can be simulated; and testing the actual running function of the application program under the simulated network environment. For example, a weak network environment may be simulated, the running functionality of an application in the weak network environment may be tested, and so on. The weak network refers to a network environment with a network speed lower than a set network speed threshold value. Alternatively, the set wire speed threshold may be the speed of the 3G network, but is not limited thereto.

As shown in fig. 1b, in some schemes, the network simulation apparatus limits the total bandwidth, and for concurrent requests of multiple services (concurrent requests 1-N in fig. 1 b), the size of a data packet corresponding to each concurrent request needs to be added and then the unified speed limit processing is performed, so that a single network service cannot be limited. When the amount of data which is sent in a unit time is large, namely when multiple service requests are sent in a unit time, the bandwidth which can be allocated to each service is uncontrollable, and the effect of accurately restoring the network environment of a single service cannot be achieved.

In order to solve the above technical problem, in the present embodiment, as shown in fig. 1a, a second application B is introduced for a first application a. The second application B mainly refers to software simulating the network environment of the first application a. The first application a and the second application B may be different application programs, or may be different functional modules in the same application program. The first application a and the second application B may be implemented as 2 independent processes. Alternatively, the second application B may be a Virtual Private Network (VPN) application for the first application a. In the present embodiment, the first application a and the second application B may be installed on the same terminal 11. For example, for the case where the first application a is a navigation application (navigation APP) and the second application B is a VPN process, the first application a and the second application B may be installed in the same car machine system.

In this embodiment, the first application a and the server 12 may perform data interaction through the second application. As shown in fig. 1c, the first application a may send the uplink data packet interacted with the service end 12 to the second application B through a transmission tunnel with the second application B; the second application B may receive the uplink packet and pass the uplink packet through a socket communication mechanism to the server 12.

On the other hand, the server 12 may transmit the downlink data packet to the second application B through the socket communication mechanism. The second application B may pass the downlink data packet through the transmission tunnel to the first application a. For the case where the second application B is a VPN process, a VPN transport tunnel between the first application a and the second application B.

In the field of network communication, the first application a and the server 12 may perform data interaction through a data packet. The data packet may include: the bag comprises a bag head and a bag body. The body of the data packet contains the service characteristics of the data packet. The service characteristic of the data packet may be a service type identifier of the data packet. The service type identifier is information that can uniquely identify one service type. In this embodiment, the implementation form of the service type identifier is not limited. In some embodiments, a service type corresponds to Uniform Resource Locator (URL) information. Accordingly, the URL information of the service type may be used as the service type identifier. Accordingly, the service feature includes a URL. In other embodiments, a plurality of service types correspond to one URL information, and other information that can uniquely identify one service type can be used as the service type identifier. For example, the name of the service type may be used as its identification information; alternatively, the service types may be numbered, and the corresponding numbers may be used as service type identifiers, and so on.

The service type of the data packet can be classified according to the service requested or responded by the data packet. For example, for a map service application, the service type of the data packet may be a search service, a location service, a route planning service, a navigation service, a location service, a rendering service, and the like. For another example, for online shopping applications, the service type of the data packet may be a search service, a placing order service, a logistics query service, a customer service request service, and the like; but is not limited thereto.

For data packets, the packet body part is encrypted and transmitted in the transmission process. For example, the http requested data is encrypted with SSL. Therefore, the second application B cannot acquire the content of the packet body part of the data packet, and cannot acquire the service type identifier in the packet body, that is, cannot acquire the service feature of the data packet.

In order to enable the second application B to obtain the service type of the data packet, in this embodiment, as shown in fig. 1a, the first application a may obtain the network request feature information. Wherein, the network request feature information may include: service characteristics and traffic characteristics of the network request. The service features may include: the network requests the destination IP address and port number to be accessed. In this embodiment, optionally, the network requests that the destination IP address to be accessed is the IP address of the server 12.

Alternatively, as shown in fig. 1c, the first application a may initialize the network request to obtain the network request feature information before it initiates the network request. Further, the first application a may pass the network request feature information to the second application B. Optionally, the first application a may transfer the network request feature information to the second application B through a cross-process communication mechanism.

Accordingly, the second application B may receive the network request feature information and save it. For the second application B, a data packet of the first application a interacting with the server 12 may be received. The data packet may be an uplink data packet sent by the first application a to the service end 12, or a downlink data packet sent by the service end 12 to the terminal 11.

Further, the second application B can analyze the service characteristics of the data packet from the data packet; and matching the service characteristics of the data packet with the service characteristics included in the network request characteristic information to obtain the target service characteristics corresponding to the service characteristics of the data packet.

Further, the second application B may process the data packet according to the network configuration information corresponding to the target service feature to simulate a network environment required by the target service type. The network configuration information refers to information reflecting a network environment or a network condition of the target service characteristics.

In the embodiment of the present application, the second application B presets a corresponding relationship between the service characteristics and the network configuration information. The corresponding relationship can be obtained by analyzing the request log of the first application a. The request log of the first application a records the requested service characteristics and information reflecting the network conditions of the service characteristics. The information reflecting the network condition of the service characteristic may be, but is not limited to, a timestamp of the first application a sending the data packet, whether the response data packet of the data packet is received, a timestamp of the response data packet of the data packet is received, a bandwidth of the service characteristic, a network transmission rate, and the like.

Alternatively, the first application a may be dotted online to obtain the request log information of the first application a. Further, network condition analysis can be carried out on the request log information to obtain network configuration information corresponding to the service characteristics; thereafter, a correspondence between the service characteristics and the network configuration information may be established and stored. The above process of establishing correspondence between the service characteristics and the network configuration information may be implemented by the second application B, or may be implemented by other computer devices. The other computer equipment can provide the corresponding relation between the service characteristics and the network configuration information to the second application B; or, technicians such as network simulators pre-store the correspondence between the service characteristics and the network configuration information in the second application B.

Based on the correspondence between the service features and the network configuration information, for the data packet, the second application B may match the target service type of the first data packet in the known correspondence between the service features and the network configuration information to determine the network configuration information corresponding to the target service features. Correspondingly, the network configuration information corresponding to the target service type includes: and the network configuration information is the simulation of the network environment of the target service characteristics.

The network configuration information may include: and uplink network configuration information and/or downlink network configuration information corresponding to the target service characteristics. The uplink network configuration information is network configuration information when information is transmitted from the terminal 11 to the network, and includes: at least one of an uplink network transmission rate, an uplink network bandwidth, an uplink network delay time, and an uplink packet loss rate. Accordingly, for the uplink data packet, the second application B may parse the service characteristic of the uplink data packet from the uplink data packet. The service characteristics of the uplink data packet may be a destination IP address (i.e., an IP address of the service end 12) and a port number to be accessed.

Further, the second application B may obtain uplink network configuration information from the network configuration information corresponding to the target service feature; and processing the uplink data packet according to the uplink network configuration information so as to simulate an uplink network environment required by the target service characteristics. For example, the second application B may perform packet loss processing on the uplink data packet according to the uplink packet loss rate.

For another example, the second application B may transparently transmit the uplink data packet to the service end 12 according to the uplink network transmission rate corresponding to the target service feature. For another example, the second application B may also delay and transmit the uplink data packet to the service end 12 according to the uplink network delay time corresponding to the target service feature.

Similarly, the downlink network configuration information refers to network configuration information when the network sends information to the terminal 11, and includes: at least one of a downlink network transmission rate, a downlink network bandwidth, a downlink network delay time and a downlink packet loss rate. Accordingly, for the downlink data packet, the second application B may parse the service characteristic of the downlink data packet from the downlink data packet. The service characteristics of the downlink data packet may be a source IP address (i.e., an IP address of the service end 12) and a port number. The second application B can obtain downlink network configuration information from the network configuration information corresponding to the target service characteristics; and processing the downlink data packet according to the downlink network configuration information to simulate the downlink network environment required by the target service characteristics. For example, the second application B may perform packet loss processing on the downlink data packet according to the downlink packet loss rate, and the like.

For another example, the second application B may transparently provide the downlink data packet to the terminal 11 according to the downlink transmission rate corresponding to the target service feature. For another example, the second application B may also delay and send the downlink data packet to the terminal 11 according to the downlink network delay time corresponding to the target service feature.

It is worth to be noted that the embodiment of the present application may simulate an uplink network environment corresponding to a service, may also simulate a downlink network environment of the service, or may simulate both the uplink network environment of the service and the downlink network environment of the service. Which kind of network environment simulation is specifically performed for a certain service can be determined by network configuration information corresponding to the service.

Based on the correspondence between the service features and the network configuration information, for the first data packet, the second application B may match the target service type of the first data packet in the correspondence between the known service type and the network configuration information to determine the network configuration information corresponding to the target service type.

Correspondingly, the network configuration information corresponding to the target service type includes: which network configuration information, which simulation is performed on the network environment of the target service type.

In the network environment simulation system provided in this embodiment, the first application and the second application are installed on the same terminal, and the first application and the server can perform data interaction through the second application. In this embodiment, the first application may obtain the network request feature information, and transmit the network request feature information to the second application; therefore, the second application can analyze the service characteristics of the data packet from the data packet interacted between the first application and the service end; matching the service characteristics of the data packet with the service characteristics included in the network request characteristic information to obtain target service characteristics corresponding to the service characteristics of the data packet; and processing the data packet according to the network configuration information corresponding to the target service characteristics to simulate the network environment required by the target service characteristics, thereby realizing the refined simulation of the service-level network environment and refining the granularity of the simulation of the network environment.

On the other hand, for navigation service applications, the vehicle-mounted device does not need ROOT, does not need to be connected with a data line, does not need to build a special local area network environment, does not need to pass through an HTTP proxy tool and does not need to have a special version, the second application can provide a fast and reliable network simulation service for users in an independent app mode, and the network abnormal problem of each service can be accurately reduced through refined simulation reduction. By using the network environment simulation scheme provided by the embodiment, a tester can simulate the vehicle-mounted network environment of a real online user on the bench, and the reduction of the drive test cost is facilitated. Aiming at the research personnel, the cost of self test can be reduced, the BUG recurrence probability of the network abnormal type is improved, and the development efficiency is improved.

The following respectively illustrates the simulation process of the uplink network environment and the downlink network environment of the target service features.

Alternatively, as shown in fig. 1c, the first application a may initiate a network request and initialize the network request. Next, the first application a may obtain the feature information a of the network request (referred to as the network request feature information a in short, i.e. the feature a in fig. 1 c) based on the network request initialization. In this embodiment, the number of originating network requests and the type of service are not limited. The number and type of service of the network requests can be set autonomously by network simulator personnel (e.g., testers, etc.). In some embodiments, the first application a may initiate a network request to implement a service associated with a network environment simulation event in response to the network environment simulation event; and acquiring the characteristic information A requested by the network. The network environment simulation event can be realized as a network environment simulation event generated aiming at the triggering operation of the business control.

Optionally, the first application a may expose a business control. The network simulator can touch the business control. Accordingly, the first application a may initiate a network request for implementing a service associated with the network environment simulation event in response to the network environment simulation event generated by the touch operation for the service control. Alternatively, the first application a may provide a voice recognition function. The network environment simulation personnel can send out related voice instructions to trigger the business control. Accordingly, the first application B may initiate a network request to implement a service associated with a network environment simulation event in response to the network environment simulation event generated in response to the voice-triggered operation for the service control. Or, the first application a may run a mock simulation program, simulate a touch operation of the trigger service control, and so on.

Further, the first application a may transmit the network request feature information a to the second application B through a cross-process communication mechanism. In fig. 1c, the second application B is illustrated as a VPN process, but the present invention is not limited thereto. Alternatively, as shown in fig. 1c, the second application B may import the network request feature information a and notify the process (auto process) of the first application a of the completion of the import of the feature information through cross-process communication. The process of the first application a enters the operation of executing the network request in response to the notification, that is, the first application a may initiate the network request and send the uplink data packet corresponding to the network request to the second application B through the transmission tunnel between the first application a and the second application B.

As shown in fig. 1d, for the second application B, the service characteristics of the upstream packet can be analyzed from the upstream packet. The service characteristics of the uplink data packet may be a destination IP address (i.e., an IP address of the service end 12) and a port number to be accessed.

Further, the second application B may match the service characteristics of the uplink data packet with the service characteristics in the network request characteristic information a to obtain the target service characteristics corresponding to the service characteristics of the uplink data packet.

And then, the second application B can process the uplink data packet based on the uplink network configuration information corresponding to the target service characteristic so as to simulate the uplink network environment required by the target service characteristic, thereby realizing service-level uplink network environment simulation and finely restoring the uplink network environment of a single service type.

In this embodiment, the number of uplink packets may be 1 or more. The plurality means 2 or more, and fig. 1d illustrates only the concurrent requests as N. Wherein N is not less than 2 and is an integer. As shown in fig. 1d, for N concurrent requests. The first application A can obtain N network request characteristic information A of concurrent requests and provide the N network request characteristic information A of concurrent requests to the second application B. In fig. 1d, the second application B is illustrated as a VPN process, but the present invention is not limited thereto.

For the second application B, aiming at the N uplink data packets, the service characteristics of the N uplink data packets can be analyzed; and matching the service characteristics of the N uplink data packets in the N network request characteristic information A which is requested concurrently to obtain the target service characteristics corresponding to the service characteristics of the N uplink data packets. Further, the second application B may process each uplink data packet based on the network configuration information corresponding to the target service feature of each uplink data packet, so as to simulate an uplink network environment corresponding to each of the N target service features. For example, the speed limit is performed according to the network speed corresponding to the service characteristic of each uplink data packet.

For the uplink data packet that needs to be sent to the service end 12, as shown in fig. 1c, the second application B may also pass through the uplink data packet to the service end 12 through a socket communication mechanism. The server 12 receives the uplink data packet, parses the request information from the uplink data packet, and generates a response data packet corresponding to the request information, i.e., a downlink data packet. Further, the server 12 may provide the downlink data packet to the second application B through the socket communication mechanism.

Accordingly, the second application B may receive the downlink data packet and parse the service feature of the downlink data packet from the downlink data packet (i.e. feature B in fig. 1 c). The service characteristics of the downlink data packet include: a source IP address (IP address of the server 12) and a port number. Further, the second application B may match the service characteristics of the downlink data packet with the service characteristics included in the network request characteristic information a, so as to obtain the target service characteristics corresponding to the service characteristics of the downlink data packet. Further, the second application B can process the downlink data packet according to the downlink network configuration information corresponding to the target service feature based on the downlink data packet, so as to simulate the downlink network environment required by the target service feature, thereby realizing the service-level downlink network environment simulation, and refining and restoring the downlink network environment of a single service type.

For the downlink data packet that needs to be sent to the server 12, as shown in fig. 1c, the second application B may also transparently transmit the downlink data packet to the first application a through the transmission tunnel with the first application a. And the downlink data packet is transmitted to the first application A through the downlink network transmission rate, the downlink bandwidth or the downlink network delay time in the downlink network configuration information of the second application B.

In this embodiment, the downlink data packet is not necessarily a response data packet of the uplink data packet, and therefore, as shown in fig. 1c, the second application B may obtain the service characteristics of the downlink data packet, and perform matching among the service characteristics included in the network request characteristic information a. And if the network request characteristic information A has the service characteristic matched with the service characteristic of the downlink data packet, taking the service characteristic corresponding to the service characteristic of the downlink data packet in the network request characteristic information A as the target service characteristic corresponding to the service characteristic of the downlink data packet. Correspondingly, if the network request feature information a does not have a service feature matching the service feature of the downlink data packet, the second application B may directly send the downlink data packet to the first application a. For example, the rate limit is not performed on the downlink packet. Fig. 1c is merely an example of performing the rate limiting process on the downlink data packet, and is not limited thereto.

In addition to the above system embodiments, the present application provides a network environment simulation method. The network environment simulation method provided by the embodiment of the present application is exemplarily described below from the perspective of the first application and the second application, respectively.

Fig. 2 is a schematic flowchart of a network environment simulation method according to an embodiment of the present application. The method is suitable for the second application described above. As shown in fig. 2, the method includes:

201. and acquiring the network request characteristic information transmitted by the first application.

202. And receiving a data packet interacted between the first application and the server.

203. And analyzing the service characteristics of the data packet from the data packet.

204. And matching the service characteristics of the data packet with the service characteristics included in the network request characteristic information to obtain target service characteristics corresponding to the service characteristics of the data packet.

205. And processing the data packet according to the network configuration information corresponding to the target service characteristics so as to simulate the network environment required by the target service characteristics.

In the embodiment, the service characteristics of the data packet can be analyzed from the data packet; matching the service characteristics of the data packet with the service characteristics included in the network request characteristic information to obtain target service characteristics corresponding to the service characteristics of the data packet; and processing the data packet according to the network configuration information corresponding to the target service characteristics to simulate the network environment required by the target service characteristics, thereby realizing the refined simulation of the service-level network environment and refining the granularity of the simulation of the network environment.

In this embodiment, an optional implementation manner of step 201 is: and acquiring network request characteristic information transmitted by the first application through a cross-process communication mechanism. Optionally, the network requesting the feature information includes: the destination IP address and the port number to be accessed by the first application and the URL to be accessed by the first application. The service characteristics included in the network request characteristic information may include: a destination IP address and port number to be accessed by the first application. The service characteristics included in the network request characteristic information may include: a URL to be accessed by the first application.

Optionally, before step 203, the target service characteristic may be matched in the correspondence between the service characteristic and the network configuration information to obtain the network configuration information corresponding to the target service characteristic.

Optionally, request log information of the first application may be obtained; analyzing the network condition of the request log information to acquire network configuration information corresponding to the service characteristics; and establishing and storing a corresponding relation between the service characteristics and the network configuration information.

Optionally, an optional implementation of step 202 is: and acquiring an uplink data packet interacted between the first application and the server through a transmission tunnel between the first application and the server. Accordingly, an alternative implementation of step 203 is: and analyzing the service characteristics of the uplink data packet from the uplink data packet. The service characteristics of the uplink data packet include: destination IP address and port number of the upstream packet.

Accordingly, an alternative implementation of step 205 is: acquiring uplink network configuration information from network configuration information corresponding to the target service characteristics; and processing the uplink data packet according to the uplink network configuration information to simulate an uplink network environment required by the target service characteristics, thereby realizing the refined reduction of the uplink network environment with a single service type.

Wherein the uplink network configuration information includes: at least one of an uplink network transmission rate, an uplink network bandwidth, an uplink network delay time, and an uplink packet loss rate.

The embodiment of the application can simulate the uplink network environment corresponding to the service and can also simulate the downlink network environment of the service. Another alternative implementation of step 202 is: and receiving the downlink data packet transmitted by the server through the socket communication mechanism. Accordingly, an alternative implementation of step 203 is: and analyzing the service characteristics of the downlink data packet from the downlink data packet. The service characteristics of the downlink data packet include: the source IP address and port number of the downlink packet.

Accordingly, an alternative implementation of step 205 is: acquiring downlink network configuration information from network configuration information corresponding to the target service characteristics; and processing the downlink data packet according to the downlink network configuration information to simulate a downlink network environment required by the target service characteristics, thereby realizing the refined reduction of the downlink network environment of a single service type.

In order to verify the accuracy of the network environment simulation method provided by the embodiment of the present application, the applicant simulates a weak network environment by using the network environment simulation method provided by the embodiment of the present application. The long-distance route calculation reduction accuracy based on the weak network is more than 95%, and the short-distance route calculation reduction accuracy is more than 92%. The accuracy of the route calculation restoration is calculated by comparing the network configuration information obtained by the network environment simulation method provided by the embodiment of the present application with the network configuration information obtained in the request log information of the first application.

It should be noted that the network environment simulation methods provided by the embodiments of the present application may be deployed on any computer device. Optionally, the network environment simulation method provided by the embodiment of the application can be deployed in a cloud to serve as a SaaS service. The SaaS service may enable a user of the first application to invoke the service. For a server side with the SaaS service, the steps in the network environment simulation method can be executed in response to service requests of other client side equipment, and business-level network environment simulation is achieved.

It should be noted that the execution subjects of the steps of the methods provided in the above embodiments may be the same device, or different devices may be used as the execution subjects of the methods. For example, the execution subjects of

steps

201 and 202 may be device a; for another example, the execution subject of step 201 may be device a, and the execution subject of step 202 may be device B; and so on.

In addition, in some of the flows described in the above embodiments and the drawings, a plurality of operations are included in a specific order, but it should be clearly understood that the operations may be executed out of the order presented herein or in parallel, and the sequence numbers of the operations, such as 201, 202, etc., are merely used for distinguishing different operations, and the sequence numbers do not represent any execution order per se. Additionally, the flows may include more or fewer operations, and the operations may be performed sequentially or in parallel.

Accordingly, embodiments of the present application also provide a computer-readable storage medium storing computer instructions, which, when executed by one or more processors, cause the one or more processors to perform the steps of the network environment simulation method.

Fig. 3 is a schematic structural diagram of a computer device according to an embodiment of the present application. As shown in fig. 3, the computer apparatus includes: a memory 30a and a processor 30 b.

In the present embodiment, the memory 30a is used for storing a computer program.

The processor 50b is coupled to the memory 50a for executing a computer program for: acquiring network request characteristic information transmitted by a first application; receiving an interactive data packet between a first application and a server; analyzing the service characteristics of the data packet from the data packet; matching the service characteristics of the data packet with the service characteristics included in the network request characteristic information to obtain target service characteristics corresponding to the service characteristics of the data packet; and processing the data packet according to the network configuration information corresponding to the target service characteristic so as to simulate the network environment required by the target service characteristic.

Wherein the network request feature information includes: service features and business features. The service features include: a destination IP address and port number to be accessed by the first application. The service characteristics comprise: a URL to be accessed by the first application.

Optionally, when acquiring the network request feature information transmitted by the first application, the processor 30b is specifically configured to: and acquiring network request characteristic information transmitted by the first application through a cross-process communication mechanism.

Optionally, the processor 30b is further configured to: acquiring network request log information of a first application; analyzing the network condition of the network request log information to acquire network configuration information corresponding to the service characteristics; and establishing and storing a corresponding relation between the service characteristics and the network configuration information.

In some embodiments, the processor 30b, when receiving the data packet exchanged between the first application and the server, is specifically configured to: and acquiring an uplink data packet interacted between the first application and the server through a transmission tunnel between the first application and the server.

Accordingly, the processor 30b, when processing the data packet, is specifically configured to: acquiring uplink network configuration information from network configuration information corresponding to the target service characteristics; and processing the uplink data packet according to the uplink network configuration information so as to simulate an uplink network environment required by the target service characteristics.

The service characteristics of the uplink data packet include: a destination IP address and a port number. The uplink network configuration information includes: at least one of an uplink network transmission rate, an uplink network bandwidth, an uplink network delay time, and an uplink network packet loss rate.

In some embodiments, the processor 30b, when receiving the data packet exchanged between the first application and the server, is specifically configured to: and receiving the downlink data packet transmitted by the server through the socket communication mechanism.

Accordingly, the processor 30b, when processing the data packet, is specifically configured to: acquiring downlink network configuration information from network configuration information corresponding to the target service characteristics; and processing the downlink data packet according to the downlink network configuration information to simulate the downlink network environment required by the target service characteristics.

The service characteristics of the downlink data packet include: a source IP address and a port number. The downlink network configuration information includes: at least one of a transmission rate of the downlink data packet, a downlink network bandwidth, a downlink network delay time, and a packet loss rate of the downlink network.

In some optional embodiments, as shown in fig. 3, the computer device may further include: optional components such as a communications component 30c, a power component 30d, a display component 30e, and an audio component 30 f. Only some of the components shown in fig. 3 are schematically depicted, and it is not meant that the computer device must include all of the components shown in fig. 3, nor that the computer device only includes the components shown in fig. 3.

The computer device provided by this embodiment may obtain network request feature information, and parse service features of a data packet from the data packet in which the first application interacts with the service end; matching the service characteristics of the data packet with the service characteristics included in the network request characteristic information to obtain target service characteristics corresponding to the service characteristics of the data packet; and processing the data packet according to the network configuration information corresponding to the target service characteristics to simulate the network environment required by the target service characteristics, thereby realizing the refined simulation of the service-level network environment and refining the granularity of the simulation of the network environment.

In embodiments of the present application, the memory is used to store computer programs and may be configured to store other various data to support operations on the device on which it is located. Wherein the processor may execute a computer program stored in the memory to implement the corresponding control logic. The memory may be implemented by any type or combination of volatile or non-volatile memory devices, such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

In the embodiments of the present application, the processor may be any hardware processing device that can execute the above described method logic. Alternatively, the processor may be a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), or a Micro Controller Unit (MCU); programmable devices such as Field-Programmable Gate arrays (FPGAs), Programmable Array Logic devices (PALs), General Array Logic devices (GAL), Complex Programmable Logic Devices (CPLDs), etc. may also be used; or Advanced Reduced Instruction Set (RISC) processors (ARM), or System On Chips (SOC), etc., but is not limited thereto.

In embodiments of the present application, the communication component is configured to facilitate wired or wireless communication between the device in which it is located and other devices. The device in which the communication component is located can access a wireless network based on a communication standard, such as WiFi, 2G or 3G, 4G, 5G or a combination thereof. In an exemplary embodiment, the communication component receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component may also be implemented based on Near Field Communication (NFC) technology, Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, or other technologies.

In the embodiment of the present application, the display assembly may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the display assembly includes a touch panel, the display assembly may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation.

In embodiments of the present application, a power supply component is configured to provide power to various components of the device in which it is located. The power components may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device in which the power component is located.

In embodiments of the present application, the audio component may be configured to output and/or input audio signals. For example, the audio component includes a Microphone (MIC) configured to receive an external audio signal when the device in which the audio component is located is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signal may further be stored in a memory or transmitted via a communication component. In some embodiments, the audio assembly further comprises a speaker for outputting audio signals. For example, for devices with language interaction functionality, voice interaction with a user may be enabled through an audio component, and so forth.

It should be noted that, the descriptions of "first", "second", etc. in this document are used for distinguishing different messages, devices, modules, etc., and do not represent a sequential order, nor limit the types of "first" and "second" to be different.

As will be appreciated by one skilled in the art, embodiments of the present application may be provided as a method, system, or computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

In a typical configuration, a computing device includes one or more processors (CPUs), input/output interfaces, network interfaces, and memory.

The memory may include forms of volatile memory in a computer readable medium, Random Access Memory (RAM) and/or non-volatile memory, such as Read Only Memory (ROM) or flash memory (flash RAM). Memory is an example of a computer-readable medium.

Computer-readable media, including both non-transitory and non-transitory, removable and non-removable media, may implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), Digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information that can be accessed by a computing device. As defined herein, a computer readable medium does not include a transitory computer readable medium such as a modulated data signal and a carrier wave.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A network environment simulation system, comprising: a terminal and a server; the terminal is provided with a first application and a second application; the first application and the server carry out data interaction through the second application;

2. The system of claim 1, wherein the first application passing network request feature information to the second application specifically comprises:

and transmitting the network request characteristic information to the second application through a cross-process communication mechanism.

3. The system of claim 1, wherein the first application and the server interact data through the second application, comprising:

the first application sends the uplink data packet interacted with the server to the second application through a transmission tunnel between the first application and the second application;

the second application receives the uplink data packet and transparently transmits the uplink data packet to the server through a socket communication mechanism;

the server transmits the downlink data packet to the second application through a socket communication mechanism; and the second application transmits the downlink data packet to the first application through the transmission tunnel.

4. The system according to claim 3, wherein processing the data packet according to the network configuration information corresponding to the target service feature to simulate a network environment required by the service feature specifically includes:

aiming at an uplink data packet, acquiring uplink network configuration information from the network configuration information of the target service characteristic, and processing the uplink data packet according to the uplink network configuration information so as to simulate an uplink network environment required by the target service characteristic;

and aiming at a downlink data packet, acquiring downlink network configuration information from the network configuration information corresponding to the target service characteristic, and processing the downlink data packet according to the downlink network configuration information so as to simulate a downlink network environment required by the target service characteristic.

5. The system of any of claims 1-4, wherein the first application is a navigation application; the second application is a virtual private network process.

6. A network environment simulation method, comprising:

receiving a data packet interacted between the first application and a server;

analyzing the service characteristics of the data packet from the data packet;

7. The method of claim 6, wherein the obtaining network request feature information delivered by the first application comprises:

and acquiring the network request characteristic information transmitted by the first application through a cross-process communication mechanism.

8. The method of claim 6, further comprising:

acquiring network request log information of the first application;

analyzing the network condition of the network request log information to acquire network configuration information corresponding to the service characteristics;

and establishing and storing a corresponding relation between the service characteristics and the network configuration information.

9. The method according to any one of claims 6-8, wherein the receiving of the data packet of the interaction between the first application and the server comprises:

acquiring an uplink data packet interacted between the first application and the server through a transmission tunnel between the first application and the first application;

the processing the data packet according to the network configuration information corresponding to the target service feature includes:

acquiring uplink network configuration information from the network configuration information corresponding to the target service characteristics;

and processing the uplink data packet according to the uplink network configuration information so as to simulate an uplink network environment required by the target service characteristics.

10. The method of claim 9, wherein the service characteristics of the upstream packet include: a destination IP address and a port number.

11. The method of claim 9, wherein the uplink network configuration information comprises: at least one of an uplink network transmission rate, an uplink network bandwidth, an uplink network delay time, and an uplink network packet loss rate.

12. The method according to any one of claims 6-8, wherein the receiving of the data packet of the interaction between the first application and the server comprises:

receiving a downlink data packet transmitted by a server through a socket communication mechanism;

acquiring downlink network configuration information from the network configuration information corresponding to the target service characteristics;

and processing the downlink data packet according to the downlink network configuration information so as to simulate a downlink network environment required by the target service characteristics.

13. The method of claim 12, wherein the service characteristics of the downstream packet include: a source IP address and a port number.

14. The method of claim 12, wherein the downlink network configuration information comprises: at least one of a transmission rate of the downlink data packet, a downlink network bandwidth, a downlink network delay time, and a packet loss rate of the downlink network.

15. The method of any of claims 6-8, wherein the network request feature information includes a service feature comprising: a destination IP address and a port number to be accessed by the first application; the service characteristics included in the network request characteristic information include: a URL to be accessed by the first application.

16. A computer program product, comprising: a computer program; the computer program when executed by a processor implements the steps of the method of any one of claims 6 to 15.