CN110138617B - Data transmission quality testing method, system, electronic device and storage medium - Google Patents
Data transmission quality testing method, system, electronic device and storage medium Download PDFInfo
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- CN110138617B CN110138617B CN201910430619.9A CN201910430619A CN110138617B CN 110138617 B CN110138617 B CN 110138617B CN 201910430619 A CN201910430619 A CN 201910430619A CN 110138617 B CN110138617 B CN 110138617B
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- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
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- H04L43/55—Testing of service level quality, e.g. simulating service usage
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Abstract
The disclosure provides a data transmission quality testing method, a data transmission quality testing system, an electronic device and a storage medium. The provided method comprises the following steps: the method comprises the steps of building a simulation network to simulate the network condition of an actual network environment, transmitting a request data packet sent by a physical client to a physical server by using the built simulation network so that the physical server generates a response data packet, transmitting the request data packet sent by the physical client to the physical server by using the simulation network so that the physical server generates the response data packet, and determining the data transmission quality according to the result of executing the response data packet by the physical client. By the method, the test on the data transmission quality between the physical client and the physical server can be more refined, the test condition is closer to the real network environment working condition, and the transmission quality evaluation efficiency of the data transmission application program in various network environments is improved.
Description
Technical Field
The present disclosure relates to the field of network testing technologies, and in particular, to a method and a system for testing data transmission quality, an electronic device, and a storage medium.
Background
With the rise of mobile internet, various applications are emerging, and it is more and more important to test data transmission quality of various applications.
At present, the application program is often tested in an intranet of a company in the development process, but the problem caused by weak network or network fault is difficult to be solved in the test process due to the good network quality of the intranet.
Therefore, by using the method for testing the corresponding program of the intranet, although a plurality of application programs are well represented in the intranet, because the intranet environment cannot simulate the real network environment after all, various exceptions such as connection timeout, system blockage, flash back and the like occur when a plurality of application programs are on-line and serve outside, and the user experience is greatly influenced.
Disclosure of Invention
The present disclosure provides a data transmission quality testing method, system, electronic device, and storage medium, so as to simulate various network conditions of an actual network environment through a simulation network, thereby making a test of data transmission quality between a physical client and a physical server closer to a real working condition.
In a first aspect, the present disclosure provides a method for testing data transmission quality, including:
transmitting a request data packet sent by a physical client to a physical server by using a built simulation network so that the physical server generates a response data packet according to the request data packet, wherein the simulation network is used for representing various network conditions of an actual network environment, and the request data packet is subjected to data structure adaptation according to a preset transmission data structure of the simulation network in the transmission process;
and feeding back the response data packet to the physical client through the simulation network so as to determine the data transmission quality according to the result of executing the response data packet by the physical client, wherein the response data packet is subjected to data structure adaptation according to the preset transmission data structure in the transmission process.
In one possible design, the transmitting, by the configuration-generated simulation network, a request packet sent by a physical client to a physical server, so that the physical server generates a response packet according to the request packet, includes:
acquiring a physical request data packet sent by the physical client, and converting the physical request data packet into a simulation request data packet adapted to the network simulator, wherein the network simulator is used for building the simulation network;
and restoring the simulation request data packet transmitted by the simulation network into the physical request data packet, and sending the physical request data packet to the physical server so that the physical server generates a physical response data packet according to the physical request data packet.
In one possible design, the feeding back the response packet to the physical client via the simulation network includes:
acquiring a physical response data packet sent by the physical server side, and converting the physical response data packet into a simulation response data packet adapted to the network simulator;
and restoring the simulation response data packet transmitted by the simulation network into the physical response data packet, and sending the physical response data packet to the physical client so as to enable the physical client to execute the physical response data packet.
In one possible design, converting a physical data packet into a simulation data packet adapted to the network simulator includes:
constructing meta-information of the simulation data packet;
filling the header information of the physical data packet into the message header of the analog data packet;
storing the data part of the physical data packet and establishing index information, wherein the index information is used for calling the data stored in the physical data packet;
filling the index information into a message data index part of the analog data packet;
when the physical data packet is the physical request data packet, the converted simulation data packet is the simulation request data packet; and when the physical data packet is the physical response data packet, the converted simulation data packet is the simulation response data packet.
In one possible design, the restoring the simulation packet after transmission over the simulation network to the physical packet includes:
extracting the meta-information of the simulation data packet to fill the corresponding field of the header information of the physical data packet, and filling the message header of the simulation data packet to the header information of the physical data packet;
acquiring storage data through index information in a message data index part of the analog data packet, and filling the acquired storage data into a data part of the physical data packet;
when the physical data packet is the physical request data packet, the converted simulation data packet is the simulation request data packet; and when the physical data packet is the physical response data packet, the converted simulation data packet is the simulation response data packet.
In one possible design, after the restoring the simulation packet transmitted through the simulation network into the physical packet, the method further includes:
randomly configuring, by the network simulator, network condition indicators of the simulated network such that the simulated network is used to characterize random network conditions in an actual network environment;
wherein the network condition indicator comprises at least one of the following parameters:
network transmission bandwidth, network simulation delay time, network transmission jitter, network transmission packet loss rate and network transmission error rate;
when the physical data packet is the physical request data packet, the restored simulation data packet is the simulation request data packet; and when the physical data packet is the physical response data packet, the restored simulation data packet is the simulation response data packet.
In one possible design, after the network simulator configures the network transmission delay of the simulation network, the method further includes:
and calculating the data packet delay time of the simulation data packet so as to transmit in the simulation network according to the data packet delay time.
In one possible design, the calculating the packet delay time of the dummy packet includes:
determining and calculating delay time according to the current time and the starting simulation time of the simulation data packet;
determining the data packet delay time according to the network simulation delay time and the calculation delay time;
and when the delay time of the data packet is greater than zero, transmitting the simulation data packet after delaying according to the delay time of the data packet.
In one possible design, before the restoring the simulation data packet transmitted through the simulation network into the physical data packet, the method further includes:
detecting whether the analog data packet exists in a sending queue or not;
if the detection result indicates that the analog data packet exists in the sending queue, the analog data packet is restored to the physical data packet;
and if the detection result is that the analog data packet does not exist in the sending queue, rechecking whether the analog data packet exists in the sending queue.
In a possible design, before the transmitting the request packet sent by the physical client to the physical server by using the built simulation network, the method further includes:
and performing initial configuration on the simulation network through the network simulator so as to configure the simulation network into various network conditions of an actual network environment.
In one possible design, the initially configuring, by the network simulator, the simulation network includes:
configuring, by the network simulator, at least one of the following parameters of the simulated network:
network type, link parameters, network device parameters, and network topology.
In one possible design, before the configuring, by the network simulator, at least one of the following parameters of the simulated network, the method further includes:
and establishing a virtual network card, wherein the virtual network card is used for capturing the request data packet sent by the physical client side or the response data packet sent by the physical server side, and the virtual network card is used for simulating a physical network card.
In one possible design, the determining the quality of data transmission based on the result of the physical client executing the response packet includes:
the physical client decodes the response data packet to play the video in the response data packet;
and evaluating the playing quality of the video according to a preset evaluation condition to determine the data transmission quality.
In a second aspect, the present disclosure further provides a data transmission quality testing system, including: the system comprises an analog network, a physical client and a physical server, wherein the physical client and the physical server are respectively connected with the analog network;
the request data packet is transmitted to a physical server end through the simulation network, so that the physical server end generates a response data packet according to the request data packet, wherein the simulation network is used for representing various network conditions of an actual network environment, and the request data packet is subjected to data structure adaptation according to a preset transmission data structure of the simulation network in the transmission process;
the physical server side sends the response data packet to the physical client side;
and the physical client executes the response data packet and determines the data transmission quality according to the execution result, wherein the response data packet carries out data structure adaptation according to the preset transmission data structure in the transmission process.
In one possible design, the data transmission quality testing system further includes: the device comprises a physical data packet conversion module and an analog data packet restoration module;
the simulation network is built by a network simulator;
the network simulator is provided with a virtual network card, and the virtual network card is used for acquiring a physical request data packet sent by the physical client;
the physical data packet conversion module is used for converting the physical request data packet into a simulation request data packet which is suitable for the network simulator;
the simulation data packet reduction module is used for reducing the simulation request data packet transmitted by the simulation network into the physical request data packet;
and sending the physical request data packet to the physical server so that the physical server generates a physical response data packet according to the physical request data packet.
In a possible design, the virtual network card is further configured to obtain a physical response data packet sent by the physical server;
the physical data packet conversion module is further configured to convert the physical response data packet into a simulation response data packet adapted to the network simulator;
the simulation data packet restoration module is further configured to restore the simulation response data packet transmitted through the simulation network to the physical response data packet;
and sending the physical response data packet to the physical client so that the physical client executes the physical response data packet.
In one possible design, the data transmission quality testing system further includes: a network simulator configuration module;
the network simulator configuration module is used for randomly configuring the network condition indexes of the simulated network so that the simulated network is used for representing the random network condition in the actual network environment;
wherein the network condition indicator comprises at least one of the following parameters:
network transmission bandwidth, network simulation delay time, network transmission jitter, network transmission packet loss rate and network transmission error rate;
when the physical data packet is the physical request data packet, the restored simulation data packet is the simulation request data packet; and when the physical data packet is the physical response data packet, the restored simulation data packet is the simulation response data packet.
In one possible design, the data transmission quality testing system further includes: a delay simulation module;
the time delay simulation module is used for calculating the data packet delay time of the simulation data packet so as to transmit in the simulation network according to the data packet delay time.
In a third aspect, the present disclosure also provides an electronic device, including:
a processor; and the number of the first and second groups,
a memory for storing executable instructions of the processor;
wherein the processor is configured to perform any one of the possible data transmission quality testing methods of the first aspect via execution of the executable instructions.
In a fourth aspect, the disclosed embodiments also provide a storage medium, on which a computer program is stored, where the program, when executed by a processor, implements any one of the possible data transmission quality testing methods in the first aspect.
The utility model discloses a data transmission quality testing method, a system, an electronic device and a storage medium, which simulates various network conditions of the actual network environment by building a simulation network, then transmits a request data packet sent by a physical client to a physical server by using the built simulation network so that the physical server generates a response data packet according to the request data packet, then transmits the request data packet sent by the physical client to the physical server by using the built simulation network so that the physical server generates a response data packet according to the request data packet, and then determines the data transmission quality by executing the response data packet according to the physical client, thereby realizing more refined testing of the data transmission quality between the physical client and the physical server and leading the testing condition to be closer to the real network environment working condition, therefore, the transmission quality evaluation efficiency of the data transmission application program under various network environments is improved.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present disclosure, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a diagram illustrating an application scenario of a data transmission quality testing method according to an example embodiment;
fig. 2 is a flow chart diagram illustrating a data transmission quality testing method according to an example embodiment of the present disclosure;
fig. 3 is a flow diagram illustrating a method of testing data transmission quality according to another example embodiment of the present disclosure;
FIG. 4 is a schematic diagram of the conversion of physical packets to analog packets in the embodiment of FIG. 3;
FIG. 5 is a schematic diagram of a network topology constructed by the network simulator in the embodiment shown in FIG. 3;
FIG. 6 is an exemplary diagram of the simulated network parameter configuration of FIG. 5;
FIG. 7 is a schematic diagram of test result output;
fig. 8 is a schematic structural diagram of a data transmission quality testing system according to an example embodiment of the present disclosure;
fig. 9 is a schematic structural diagram of an electronic device shown in accordance with an example embodiment of the present disclosure.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are some, but not all embodiments of the present disclosure. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present disclosure and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the disclosure described herein are capable of operation in sequences other than those illustrated or otherwise described herein. 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.
Fig. 1 is a diagram illustrating an application scenario of a data transmission quality testing method according to an example embodiment. As shown in fig. 1, the data transmission quality testing method provided in this embodiment is applied to a data transmission quality testing system, where the data transmission quality testing system includes: the simulation system includes a simulation network 104, and a physical client 101 and a physical server 102 connected to the simulation network 104, where the simulation network 104 may be built by a network simulator 103, and it is worth to be noted that the network simulator 103 may be currently used simulators such as NS2, NS3, OPNET, CAPPAP, and the like, which are all existing mature simulators, and are not described herein again, and a specific type of the network simulator is not limited in this embodiment. When the network simulator 103 performs environment initialization, a virtual network card may be established, wherein the physical client may be connected to the simulation network 104 through the virtual network card veth0, and the physical server may be connected to the simulation network 104 through the virtual network card veth 1.
In the data transmission quality test, the physical client 101 sends a request packet, but the current network simulator 103 does not have the capability of processing the physical packet because the request packet sent by the physical client 101 is a physical packet. It should be noted here that, because the current network simulator 103 does not have the capability of processing the physical data packet, a test system for directly connecting the physical client or the physical server to the network simulator does not exist in the prior art, and the application scenario of the network simulator is only limited in the aspects of network system design and network evaluation, and cannot be directly connected to the application program in the physical client.
Therefore, the request packet needs to be adapted in data structure according to a preset transmission data structure of the simulation network during transmission, so that the network simulator 103 can process the adapted packet.
Specifically, the virtual network card veth0 may obtain a physical request packet sent by the physical client 101, and convert the physical request packet into a simulation request packet adapted to the network simulator end 103. The virtual network card is different from the physical network card, and the virtual network card can automatically identify whether the data packet is a real physical data packet or a virtual simulation data packet. Aiming at the destination IP of different data packets, the network card can automatically judge the conversion type of the data packets: whether the physical data packet is converted into an analog data packet or the analog data packet is converted into the physical data packet. After the conversion is finished, the virtual network card can also intelligently fill header information such as MAC addresses, source IPs, destination IPs and the like of the data packets.
After the simulation request data packet is transmitted through the simulation network 104, the simulation request data packet needs to be restored to a physical request data packet, and then the physical request data packet is transmitted to the physical server 102, so that the physical server 102 can generate a physical response data packet according to the physical request data packet. The physical server side 102 then sends the physical response packet to the simulation network 104. At this time, the virtual network card veth1 may obtain the physical request data packet sent by the physical server 102, and convert the physical response data packet into a simulation response data packet adapted to the network simulator 103.
Then, the simulation response data packet transmitted through the simulation network 104 is further reduced to a physical response data packet, and the physical response data packet is sent to the physical client, so that the physical client executes the physical response data packet, and the data transmission quality is determined according to the result of the physical client executing the physical response data packet.
For example, if the data transmission quality test method provided in this embodiment is used to test video data transmission, the physical client needs to decode the response data packet to play a video in the response data packet, and then evaluates the video playing quality of the video according to a preset evaluation condition to determine the video data transmission quality, where the physical client can evaluate uplink and downlink bandwidths, packet loss rate, smoothness, image quality, and other aspects in video playing to obtain a data transmission test result.
Fig. 2 is a flowchart illustrating a data transmission quality testing method according to an example embodiment of the present disclosure. As shown in fig. 2, the data transmission quality testing method provided in this embodiment includes:
Specifically, a simulation network can be built through a network simulator, wherein the simulation network can be configured through the network simulator, so that the simulation network can represent various network conditions of an actual network environment. Specifically, the network condition indexes of the simulation network may be randomly configured by the network simulator, so that the simulation network can represent the random network condition in the actual network environment, for example, the network transmission bandwidth, the network simulation delay time, the network transmission jitter, the network transmission packet loss rate, and the network transmission error rate may be calculated by a discrete event simulation method, and then the network condition indexes are configured, so as to simulate each parameter index of the random network state in the actual network environment.
After the simulation network is built, the request data packet sent by the physical client can be transmitted to the physical server by using the built simulation network, and it is worth explaining that the request data packet is subjected to data structure adaptation according to a preset transmission data structure of the simulation network in the transmission process, so that the request data packet can be smoothly sent to the physical server through the simulation network built by the network simulator.
After receiving the request data packet sent by the physical client via the analog network at the physical server, a response data packet may be generated according to the request data packet, where the request data packet may be processed according to the relevant service logic.
After the physical server side generates the response data packet according to the request data packet, the response data packet can be sent to the simulation network, so that the response data packet is fed back to the physical client side through the simulation network, the same requirement of the response data packet in the transmission process is met according to a preset transmission data structure, and the response data packet can be smoothly sent to the physical client side through the simulation network constructed by the network simulator.
And step 204, determining the data transmission quality according to the result of the response data packet executed by the physical client.
After the physical client receives the response data packet fed back by the physical server through the simulation network, the physical client can perform execution operation on the response data packet, and determine the data transmission quality according to the result of the physical client executing the response data packet.
For example, when the data transmission quality test method provided by this embodiment is used to test video data transmission, the physical client needs to decode the response data packet to play a video in the response data packet, and then evaluates the video playing quality of the video according to a preset evaluation condition to determine the video data transmission quality, where the physical client can evaluate uplink and downlink bandwidths, packet loss rates, fluency, image quality, and other aspects in video playing to obtain a data transmission test result.
In the implementation, various network conditions of the actual network environment are simulated by building the simulation network, then the constructed simulation network is used for transmitting the request data packet sent by the physical client to the physical server, so that the physical server end generates a response data packet according to the request data packet, and transmits the request data packet sent by the physical client end to the physical server end by utilizing the built simulation network so that the physical server end generates the response data packet according to the request data packet, then, by determining the data transmission quality according to the result of the physical client performing the response packet, thereby realizing more refined test of data transmission quality between the physical client and the physical server and leading the test condition to be closer to the real network environment working condition, therefore, the transmission quality evaluation efficiency of the data transmission application program under various network environments is improved.
Fig. 3 is a flow chart diagram illustrating a data transmission quality testing method according to another example embodiment of the present disclosure. As shown in fig. 3, the data transmission quality testing method provided in this embodiment includes:
Firstly, before performing a data transmission quality test, the simulation network may be initially configured by the network simulator, so as to configure the simulation network into various network conditions of an actual network environment. Specifically, at least one of the following parameters of the simulated network may be configured by the network simulator: network type (e.g., WIFI, 4G, ethernet, etc.), link parameters, network device parameters, and network topology.
It should be noted that, when the network simulator performs environment initialization, a virtual network card may be established, where the physical client may be connected to the simulation network through the virtual network card veth0, and the physical server may be connected to the simulation network 104 through the virtual network card veth 1. The virtual network card veth0 may obtain a physical request packet sent by a physical client, and convert the physical request packet into a simulation request packet adapted to the network simulator. The virtual network card is different from the physical network card in the position where the virtual network card is different from the physical network card, so that the virtual network card can automatically identify whether the data packet is a real physical data packet or a virtual simulation data packet. Aiming at the destination IP of different data packets, the network card can automatically judge the conversion type of the data packets: whether the physical data packet is converted into an analog data packet or the analog data packet is converted into the physical data packet. After the conversion is finished, the virtual network card can also intelligently fill header information such as MAC addresses, source IPs, destination IPs and the like of the data packets.
The physical client is connected to the virtual network card veth0, and the physical server is connected to the virtual network card veth1, so that the physical client and the physical server can communicate with each other through the analog network. Optionally, the constructed virtual network may be on one testing machine, or may be deployed on a testing cluster. The physical user side and the physical server can communicate only by connecting the established virtual network card interface without other additional operations.
In another possible design, the physical user side and the physical server side may also be directly connected to the physical network, but need to be segment isolated from the physical network.
Because the request data packet sent by the physical client is a physical data packet, the current network simulator does not have the capability of processing the physical data packet. Therefore, it is necessary to first obtain a physical request packet sent by a physical client and convert the physical request packet into a simulation request packet adapted to the network simulator. And the simulation request data packet transmitted by the simulation network is restored into a physical request data packet, and the physical request data packet is sent to the physical server side, so that the physical server side generates a physical response data packet according to the physical request data packet.
Fig. 4 is a schematic diagram illustrating conversion between a physical data packet and an analog data packet in the embodiment shown in fig. 3. As shown in fig. 4, the physical data packet includes a header and a data portion, and the analog data packet includes analog data packet meta-information, a packet header and a packet data index portion. Therefore, when the physical data packet and the analog data packet are converted, the data packet to be converted needs to be correspondingly processed according to the target data packet so as to generate the converted data packet.
For converting the physical request data packet into the analog request data packet, the meta information of the analog data packet may be first constructed, then the header information of the physical request data packet is filled into the message header of the analog request data packet, the data portion of the physical request data packet is stored, and index information is established, where the index information is used to call the data after storing the physical request data packet, and the index information is filled into the message data index portion of the analog request data packet.
It is worth to be noted that, when the data part in the physical request data packet is converted into the simulation request data packet, the data part is replaced by the heat preservation data index information, so that the data volume of the data packet can be greatly reduced, and the efficiency of the whole data transmission test is improved.
With reference to fig. 4, the meta-information in the emulation request packet may include information such as emulation network coding, emulator type, fragmentation status, and data length, where the fragmentation status may be determined according to the fragment offset in the header information of the physical packet, for example, when the fragment offset in the physical packet is 1, there is a data fragment in the emulation request packet, and when the fragment offset in the physical packet is 0, there is no data fragment in the emulation request packet. And for the data length, the data length can be obtained by calculation by using the difference between the total length in the physical data packet and the header length.
Specifically, the simulation network can be configured by the network simulator, so that the simulation network can represent various network conditions of the actual network environment. Specifically, the network condition indexes of the simulation network may be randomly configured by the network simulator, so that the simulation network can represent the random network condition in the actual network environment, for example, the network transmission bandwidth, the network simulation delay time, the network transmission jitter, the network transmission packet loss rate, and the network transmission error rate may be calculated by a discrete event simulation method, and then the network condition indexes are configured, so as to simulate each parameter index of the random network state in the actual network environment.
In addition, the network simulator needs to simulate transmission according to the arrival time of the actual physical data packet. Firstly, a network simulator detects whether a simulation data packet to be transmitted exists in a network card queue, if the detection result shows that the simulation data packet exists in a transmission queue, the simulation request data packet is restored to a physical request data packet, but if the detection result shows that the simulation data packet does not exist in the transmission queue, the network simulator rechecks whether the simulation data packet exists in the transmission queue, and therefore the condition of queuing the data packet is simulated. It should be noted that the detection of the network card queue is not terminated until the entire transmission quality test is finished.
In addition, in order to simulate the transmission delay of the data packet in the real network environment, the network simulator configures the network transmission delay of the simulated network, and when the detection result of the sending queue is that the simulated data packet exists in the sending queue, calculates the data packet delay time of the simulated data packet, so as to transmit in the simulated network according to the data packet delay time, that is, by calculating the simulated delay of the data packet, if the delay exists, the data packet is delayed for a period of time for processing, and then the data packet is sent to the client or the server for coding and decoding processing.
Specifically, the calculation delay time may be determined according to the current time and the starting simulation time of the simulation packet, and then the packet delay time may be determined according to the network simulation delay time and the calculation delay time, where when the packet delay time is greater than zero, the simulation packet is transmitted after being delayed according to the packet delay time.
And 305, restoring the simulation request data packet transmitted through the simulation network into a physical request data packet.
Before the simulation request data packet reaches the physical server end, the simulation request data needs to be restored into a real physical request data packet.
Specifically, the information of the meta information of the simulation request data packet is extracted to fill the corresponding field of the header information of the physical request data packet, the message header of the simulation request data packet is filled in the header information of the physical request data packet, then, the storage data is obtained through the index information in the message data index part of the simulation request data packet, and the obtained storage data is filled in the data part of the physical request data packet, that is, the data part index of the physical request data packet is replaced by real physical data. Optionally, check information may be added finally, thereby completing the construction.
And step 306, the physical server side generates a physical response data packet according to the request physical data packet.
After receiving the request data packet sent by the physical client via the analog network at the physical server, a response data packet may be generated according to the request data packet, where the request data packet may be processed according to the relevant service logic.
And 307, acquiring a physical response data packet sent by the physical server, and converting the physical response data packet into a simulation response data packet adapted to the network simulator.
Because the response data packet sent by the physical server side is a physical data packet, the current network simulator does not have the capability of processing the physical data packet. Therefore, it is necessary to first obtain the physical response packet sent by the physical server and convert the physical response packet into a simulation response packet adapted to the network simulator. And restoring the simulation response data packet transmitted by the simulation network into a physical response data packet, and sending the physical response data packet to the physical client so as to enable the physical server to execute the physical response data packet.
With reference to fig. 4, for converting the physical response packet into the analog response packet, the meta information of the analog packet may be first constructed, then the header information of the physical response packet is filled into the packet header of the analog response packet, the data portion of the physical response packet is stored, and index information is established, where the index information is used to call the data stored in the physical response packet, and the index information is filled into the packet data index portion of the analog response packet.
It is worth explaining that when the data part in the physical response data packet is converted into the simulation response data packet, the data part is replaced by the heat preservation data index information, so that the data volume of the data packet can be greatly reduced, and the efficiency of the whole data transmission test is improved.
The meta-information in the simulation response packet may include simulation network coding, simulator type, fragmentation and data length, wherein the fragmentation may be determined according to a fragmentation offset in header information of the physical packet, for example, when the fragmentation offset in the physical packet is 1, the data fragment exists in the simulation response packet, and when the fragmentation offset in the physical packet is 0, the data fragment does not exist in the simulation response packet. And for the data length, the data length can be obtained by calculation by using the difference between the total length in the physical data packet and the header length.
And 308, transmitting the simulation response data packet in the configured simulation network.
Specifically, the simulation network can be configured by the network simulator, so that the simulation network can represent various network conditions of the actual network environment. Specifically, the network condition indexes of the simulation network may be randomly configured by the network simulator, so that the simulation network can represent the random network condition in the actual network environment, for example, the network transmission bandwidth, the network simulation delay time, the network transmission jitter, the network transmission packet loss rate, and the network transmission error rate may be calculated by a discrete event simulation method, and then the network condition indexes are configured, so as to simulate each parameter index of the random network state in the actual network environment.
In addition, the network simulator needs to simulate transmission according to the arrival time of the actual physical data packet. Firstly, a network simulator detects whether a simulation data packet to be transmitted exists in a network card queue, if the detection result shows that the simulation data packet exists in a transmission queue, the simulation request data packet is restored to a physical request data packet, but if the detection result shows that the simulation data packet does not exist in the transmission queue, the network simulator rechecks whether the simulation data packet exists in the transmission queue, and therefore the condition of queuing the data packet is simulated. It should be noted that the detection of the network card queue is not terminated until the entire transmission quality test is finished.
In addition, in order to simulate the transmission delay of the data packet in the real network environment, the network simulator configures the network transmission delay of the simulated network, and when the detection result of the sending queue is that the simulated data packet exists in the sending queue, calculates the data packet delay time of the simulated data packet, so as to transmit in the simulated network according to the data packet delay time, that is, by calculating the simulated delay of the data packet, if the delay exists, the data packet is delayed for a period of time for processing, and then the data packet is sent to the client or the server for coding and decoding processing.
Specifically, the calculation delay time may be determined according to the current time and the starting simulation time of the simulation packet, and then the packet delay time may be determined according to the network simulation delay time and the calculation delay time, where when the packet delay time is greater than zero, the simulation packet is transmitted after being delayed according to the packet delay time.
Before the simulation response data packet reaches the physical client, the simulation response data also needs to be restored into a real physical response data packet.
Specifically, the information of the meta information of the simulation response data packet is extracted to fill the corresponding field of the header information of the physical response data packet, the message header of the simulation response data packet is filled in the header information of the physical response data packet, then, the storage data is obtained through the index information in the message data index part of the simulation response data packet, and the obtained storage data is filled in the data part of the physical response data packet, that is, the data part index of the physical response data packet is replaced by real physical data. Optionally, check information may be added finally, thereby completing the construction.
And 310, evaluating the playing quality of the video according to a preset evaluation condition to determine the data transmission quality.
After the physical client receives the response data packet fed back by the physical server through the simulation network, the physical client can perform execution operation on the response data packet, and determine the data transmission quality according to the result of the physical client executing the response data packet.
For example, when the data transmission quality test method provided by this embodiment is used to test video data transmission, the physical client needs to decode the response data packet to play a video in the response data packet, and then evaluates the video playing quality of the video according to a preset evaluation condition to determine the video data transmission quality, where the physical client can evaluate uplink and downlink bandwidths, packet loss rates, fluency, image quality, and other aspects in video playing to obtain a data transmission test result.
The following describes the data transmission quality testing method provided by this embodiment in a specific application scenario. Fig. 5 is a schematic diagram of a network topology constructed by the network simulator in the embodiment shown in fig. 3. As shown in fig. 5, the simulation network may be connected to a virtual network interface, a mobile phone end is selected as a physical client, an application program to be tested is installed on the mobile phone end, and the mobile phone end is connected to the simulation test network, and the physical server end also needs to be connected to the same simulation network, so as to ensure that both parties can communicate.
Fig. 6 is an exemplary diagram of the simulated network parameter configuration of fig. 5. As shown in fig. 6, the setting of the simulation network-related parameters may be performed using the respective parameters shown in fig. 6. Then, the application program for testing is opened at the mobile phone end, and the use scene of the test user is determined, so as to perform the video data transmission quality test, and the test result is shown in fig. 7, where fig. 7 is a test result output schematic diagram. Therefore, by using the data transmission quality testing method provided by the embodiment, the real network of the user can be experienced on site, and the performance of the application program under different network conditions can be evaluated by constructing rich simulation networks.
Fig. 8 is a schematic structural diagram illustrating a data transmission quality testing system according to an example embodiment of the present disclosure. As shown in fig. 8, the data transmission quality testing system provided in this embodiment includes: the system comprises an analog network, a physical client and a physical server, wherein the physical client and the physical server are respectively connected with the analog network;
the request data packet is transmitted to a physical server end through the simulation network, so that the physical server end generates a response data packet according to the request data packet, wherein the simulation network is used for representing various network conditions of an actual network environment, and the request data packet is subjected to data structure adaptation according to a preset transmission data structure of the simulation network in the transmission process;
the physical server side sends the response data packet to the physical client side;
and the physical client executes the response data packet and determines the data transmission quality according to the execution result, wherein the response data packet carries out data structure adaptation according to the preset transmission data structure in the transmission process.
In one possible design, the data transmission quality testing system further includes: the device comprises a physical data packet conversion module and an analog data packet restoration module;
the simulation network is built by a network simulator;
the network simulator is provided with a virtual network card, and the virtual network card is used for acquiring a physical request data packet sent by the physical client;
the physical data packet conversion module is used for converting the physical request data packet into a simulation request data packet which is suitable for the network simulator;
the simulation data packet reduction module is used for reducing the simulation request data packet transmitted by the simulation network into the physical request data packet;
and sending the physical request data packet to the physical server so that the physical server generates a physical response data packet according to the physical request data packet.
In a possible design, the virtual network card is further configured to obtain a physical response data packet sent by the physical server;
the physical data packet conversion module is further configured to convert the physical response data packet into a simulation response data packet adapted to the network simulator;
the simulation data packet restoration module is further configured to restore the simulation response data packet transmitted through the simulation network to the physical response data packet;
and sending the physical response data packet to the physical client so that the physical client executes the physical response data packet.
In one possible design, the data transmission quality testing system further includes: a network simulator configuration module;
the network simulator configuration module is used for randomly configuring the network condition indexes of the simulated network so that the simulated network is used for representing the random network condition in the actual network environment;
wherein the network condition indicator comprises at least one of the following parameters:
network transmission bandwidth, network simulation delay time, network transmission jitter, network transmission packet loss rate and network transmission error rate;
when the physical data packet is the physical request data packet, the restored simulation data packet is the simulation request data packet; and when the physical data packet is the physical response data packet, the restored simulation data packet is the simulation response data packet.
In one possible design, the data transmission quality testing system further includes: a delay simulation module;
the time delay simulation module is used for calculating the data packet delay time of the simulation data packet so as to transmit in the simulation network according to the data packet delay time.
It should be noted that the data transmission quality testing system provided in the embodiment shown in fig. 8 may be used to execute the method provided in any of the above embodiments, and the specific implementation manner and the technical effect are similar and will not be described herein again.
Fig. 9 is a schematic structural diagram of an electronic device shown in accordance with an example embodiment of the present disclosure. As shown in fig. 9, the present embodiment provides an electronic device 40, including:
a processor 401; and the number of the first and second groups,
a memory 402 for storing executable instructions of the processor, which may also be a flash (flash memory);
wherein the processor 401 is configured to perform the steps of the above-described method via execution of the executable instructions. Reference may be made in particular to the description relating to the preceding method embodiment.
Alternatively, the memory 402 may be separate or integrated with the processor 401.
When the memory 402 is a device independent from the processor 401, the electronic device 40 may further include:
a bus 403 for connecting the processor 401 and the memory 402.
The present embodiment also provides a readable storage medium, in which a computer program is stored, and when at least one processor of the electronic device executes the computer program, the electronic device executes the methods provided by the above various embodiments.
The present embodiment also provides a program product comprising a computer program stored in a readable storage medium. The computer program can be read from a readable storage medium by at least one processor of the electronic device, and the execution of the computer program by the at least one processor causes the electronic device to implement the methods provided by the various embodiments described above.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present disclosure, and not for limiting the same; while the present disclosure has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present disclosure.
Claims (18)
1. A method for testing data transmission quality, comprising:
transmitting a request data packet sent by a physical client to a physical server by using a built simulation network so that the physical server generates a response data packet according to the request data packet, wherein the simulation network is used for representing various network conditions of an actual network environment, and the request data packet is subjected to data structure adaptation according to a preset transmission data structure of the simulation network in the transmission process;
feeding the response data packet back to the physical client through the simulation network so as to determine data transmission quality according to a result of the physical client executing the response data packet, wherein the response data packet is subjected to data structure adaptation according to the preset transmission data structure in the transmission process;
the method for transmitting the request data packet sent by the physical client to the physical server by using the built simulation network so that the physical server generates a response data packet according to the request data packet comprises the following steps:
acquiring a physical request data packet sent by the physical client, and converting the physical request data packet into a simulation request data packet adapted to a network simulator, wherein the network simulator is used for building the simulation network;
restoring the simulation request data packet transmitted by the simulation network into the physical request data packet, and sending the physical request data packet to the physical server so that the physical server generates a physical response data packet according to the physical request data packet;
wherein converting the physical request packet into a simulation request packet adapted to the network simulator comprises:
constructing meta-information of the simulation request data packet;
filling the header information of the physical request data packet into the message header of the simulation request data packet;
storing the data part of the physical request data packet and establishing index information, wherein the index information of the physical request data packet is used for calling the data after the physical request data packet is stored;
and filling the index information of the physical request data packet into a message data index part of the simulation request data packet.
2. The method for testing data transmission quality according to claim 1, wherein the feeding back the response packet to the physical client via the simulation network comprises:
acquiring a physical response data packet sent by the physical server side, and converting the physical response data packet into a simulation response data packet adapted to the network simulator;
and restoring the simulation response data packet transmitted by the simulation network into the physical response data packet, and sending the physical response data packet to the physical client so as to enable the physical client to execute the physical response data packet.
3. The method for testing data transmission quality according to claim 2, wherein converting the physical data packet into a simulation data packet adapted to the network simulator comprises:
constructing meta-information of the simulation data packet;
filling the header information of the physical data packet into the message header of the analog data packet;
storing the data part of the physical data packet and establishing index information, wherein the index information is used for calling the data stored in the physical data packet;
filling the index information into a message data index part of the analog data packet;
when the physical data packet is the physical request data packet, the converted simulation data packet is the simulation request data packet; and when the physical data packet is the physical response data packet, the converted simulation data packet is the simulation response data packet.
4. The method for testing data transmission quality according to claim 2, wherein the step of restoring the simulation data packet transmitted through the simulation network into a physical data packet comprises:
extracting the meta-information of the simulation data packet to fill the corresponding field of the header information of the physical data packet, and filling the message header of the simulation data packet to the header information of the physical data packet;
acquiring storage data through index information in a message data index part of the analog data packet, and filling the acquired storage data into a data part of the physical data packet;
when the physical data packet is the physical request data packet, the converted simulation data packet is the simulation request data packet; and when the physical data packet is the physical response data packet, the converted simulation data packet is the simulation response data packet.
5. The data transmission quality testing method according to claim 1 or 2, further comprising, after the step of restoring the simulation data packet transmitted through the simulation network into a physical data packet:
randomly configuring, by the network simulator, network condition indicators of the simulated network such that the simulated network is used to characterize random network conditions in an actual network environment;
wherein the network condition indicator comprises at least one of the following parameters:
network transmission bandwidth, network simulation delay time, network transmission jitter, network transmission packet loss rate and network transmission error rate;
when the physical data packet is the physical request data packet, the restored simulation data packet is the simulation request data packet; and when the physical data packet is the physical response data packet, the restored simulation data packet is a simulation response data packet.
6. The data transmission quality testing method of claim 5, further comprising, after the network simulator configures the network transmission delay of the simulation network:
and calculating the data packet delay time of the simulation data packet so as to transmit in the simulation network according to the data packet delay time.
7. The method for testing data transmission quality according to claim 6, wherein the calculating the packet delay time of the dummy packet comprises:
determining and calculating delay time according to the current time and the starting simulation time of the simulation data packet;
determining the data packet delay time according to the network simulation delay time and the calculation delay time;
and when the delay time of the data packet is greater than zero, transmitting the simulation data packet after delaying according to the delay time of the data packet.
8. The method for testing data transmission quality according to claim 6, further comprising, before the step of restoring the simulation packet transmitted through the simulation network to the physical packet:
detecting whether the analog data packet exists in a sending queue or not;
if the detection result indicates that the analog data packet exists in the sending queue, the analog data packet is restored to the physical data packet;
and if the detection result is that the analog data packet does not exist in the sending queue, rechecking whether the analog data packet exists in the sending queue.
9. The data transmission quality testing method according to claim 2, wherein before the transmitting the request packet sent by the physical client to the physical server by using the built simulation network, the method further comprises:
and performing initial configuration on the simulation network through the network simulator so as to configure the simulation network into various network conditions of an actual network environment.
10. The method for testing data transmission quality according to claim 9, wherein the initially configuring the simulation network by the network simulator includes:
configuring, by the network simulator, at least one of the following parameters of the simulated network:
network type, link parameters, network device parameters, and network topology.
11. The data transmission quality testing method according to claim 10, further comprising, before the configuring, by the network simulator, at least one of the following parameters of the simulated network:
and establishing a virtual network card, wherein the virtual network card is used for capturing the request data packet sent by the physical client side or the response data packet sent by the physical server side, and the virtual network card is used for simulating a physical network card.
12. The data transmission quality testing method according to any one of claims 1 to 4 or 9 to 11, wherein the determining the data transmission quality according to the result of the response packet executed by the physical client comprises:
the physical client decodes the response data packet to play the video in the response data packet;
and evaluating the playing quality of the video according to a preset evaluation condition to determine the data transmission quality.
13. A data transmission quality testing system, comprising: the system comprises an analog network, a physical client and a physical server, wherein the physical client and the physical server are respectively connected with the analog network;
the request data packet is transmitted to a physical server end through the simulation network, so that the physical server end generates a response data packet according to the request data packet, wherein the simulation network is used for representing various network conditions of an actual network environment, and the request data packet is subjected to data structure adaptation according to a preset transmission data structure of the simulation network in the transmission process;
the physical server side sends the response data packet to the physical client side;
the physical client executes the response data packet and determines data transmission quality according to an execution result, wherein the response data packet carries out data structure adaptation according to the preset transmission data structure in the transmission process;
the data transmission quality test system further comprises: the device comprises a physical data packet conversion module and an analog data packet restoration module;
the simulation network is built by a network simulator;
the network simulator is provided with a virtual network card, and the virtual network card is used for acquiring a physical request data packet sent by the physical client;
the physical data packet conversion module is configured to convert the physical request data packet into a simulation request data packet adapted to the network simulator, where converting the physical request data packet into a simulation request data packet adapted to the network simulator includes: constructing meta-information of the simulation request data packet; filling the header information of the physical request data packet into the message header of the simulation request data packet; storing the data part of the physical request data packet and establishing index information, wherein the index information of the physical request data packet is used for calling the data after the physical request data packet is stored; filling the index information of the physical request data packet into a message data index part of the simulation request data packet;
the simulation data packet reduction module is used for reducing the simulation request data packet transmitted by the simulation network into the physical request data packet;
and sending the physical request data packet to the physical server so that the physical server generates a physical response data packet according to the physical request data packet.
14. The data transmission quality test system of claim 13,
the virtual network card is also used for acquiring a physical response data packet sent by the physical server;
the physical data packet conversion module is further configured to convert the physical response data packet into a simulation response data packet adapted to the network simulator;
the simulation data packet restoration module is further configured to restore the simulation response data packet transmitted through the simulation network to the physical response data packet;
and sending the physical response data packet to the physical client so that the physical client executes the physical response data packet.
15. The data transmission quality testing system of claim 14, further comprising: a network simulator configuration module;
the network simulator configuration module is used for randomly configuring the network condition indexes of the simulated network so that the simulated network is used for representing the random network condition in the actual network environment;
wherein the network condition indicator comprises at least one of the following parameters:
network transmission bandwidth, network simulation delay time, network transmission jitter, network transmission packet loss rate and network transmission error rate;
when the physical data packet is the physical request data packet, the restored simulation data packet is the simulation request data packet; and when the physical data packet is the physical response data packet, the restored simulation data packet is the simulation response data packet.
16. The data transmission quality testing system of claim 15, further comprising: a delay simulation module;
the time delay simulation module is used for calculating the data packet delay time of the simulation data packet so as to transmit in the simulation network according to the data packet delay time.
17. An electronic device, comprising:
a processor; and a memory for storing executable instructions of the processor;
wherein the processor is configured to perform the data transmission quality testing method of any one of claims 1 to 12 via execution of the executable instructions.
18. A storage medium on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out the data transmission quality testing method of any one of claims 1 to 12.
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