CN115037700A - A complex network data packet transmission method, system, terminal and storage medium - Google Patents

Abstract

The present application relates to a complex network data packet transmission method, system, terminal and storage medium, which belong to the field of data transmission, wherein a complex network data packet transmission method includes acquiring historical transmission information of a current transmission link, and according to the historical transmission information to obtain the packet loss rate of the last transmission batch; compare the packet loss rate of the last transmission batch with the preset packet loss rate; if the packet loss rate of the last transmission batch is greater than the preset packet loss rate If the packet loss rate of the previous transmission batch is less than the preset packet loss rate, the current transmission batch will be changed to the current transmission batch. The data volume in the data packet is increased by the preset data volume to form a new data packet to be transmitted. The present application has the effect of improving the transmission efficiency of complex network data packets.

Description

A complex network data packet transmission method, system, terminal and storage medium

technical field

The present application relates to the field of data transmission, and in particular, to a complex network data packet transmission method, system, terminal and storage medium.

Background technique

At present, the network transmission method generally disassembles the data into data blocks of a specified size under the premise of determining the destination address, and then sends the data blocks from the service starting end to the service headquarters end through a multi-layer complex network environment. way to select an appropriate data size in real time.

Usually, the complex network packet transmission process is that the complex network packet transmission protocol will select data of a specific size to transmit in the network channel; for the end-to-end environment, choosing this transmission method will not affect; In terms of network environment, especially after the complex network packet transmission process passes through multi-layer routers and switches, it will lead to a high data packet loss rate.

However, once the data loses some information, it needs to be retransmitted, causing the bandwidth to be full, so that the actual data transmission time far exceeds the theoretical transmission time, resulting in low transmission efficiency of complex network data packets.

SUMMARY OF THE INVENTION

The present application provides a complex network data packet transmission method, system, terminal and storage medium, which have the characteristics of improving the complex network data packet transmission efficiency.

The first objective of the present application is to provide a method for transmitting complex network data packets.

The above-mentioned application purpose of the present application is achieved through the following technical solutions:

A complex network data packet transmission method, comprising:

Obtain the historical transmission information of the current transmission link, and obtain the packet loss rate of the previous transmission batch according to the historical transmission information;

The historical transmission information includes the amount of data in the data packets of each transmission batch, the packet loss rate of each transmission batch, and the transmission time of each transmission batch;

comparing the packet loss rate of the last transmission batch with a preset packet loss rate;

If the packet loss rate of the previous transmission batch is greater than the preset packet loss rate, reduce the data amount in the data packets of the current transmission batch by the first preset data amount to form a new data packet to be transmitted;

If the packet loss rate of the previous transmission batch is less than the preset packet loss rate, the data amount in the data packets of the current transmission batch is increased by the first preset data amount to form a new data packet to be transmitted.

By adopting the above technical solution, the historical transmission information of the current transmission link is obtained first, and then according to the historical transmission information, the data volume, packet loss rate and transmission time in the data packets of all transmission tasks before the current batch of transmission tasks can be known; Then, through the analysis and comparison of the packet loss rate of the previous transmission batch, the data packets of the current transmission batch are processed accordingly; in this way, for the current transmission link, each transmission will be based on The transmission result of the last transmission batch adjusts the data volume of the data packet to be transmitted in real time, thereby realizing the control and synchronization adjustment of the data packet, making the data volume in the data packet conform to the transmission volume of the current transmission link, and reducing the transmission of data Time, improve the efficiency of complex network data packet transmission.

In a preferred example, the present application may be further configured such that the step of acquiring the historical transmission information of the current transmission link includes:

The historical transmission information includes the first transmission information;

If the current transmission link performs the first transmission:

The data packets to be transmitted in the first transmission task are split into a plurality of sub-data packets of the second preset data amount and then transmitted through the current transmission link.

In a preferred example of the present application, it may be further configured that: the second preset data volume of the sub-data packet includes the IP header data volume and the UDP header data volume.

In a preferred example, the present application can be further configured to further include:

When reducing the data volume in the data packets of the current transmission batch, obtain the data volume of the reduced data packets;

comparing the amount of data with a preset minimum amount of data;

When the data amount is not less than the preset minimum data amount, the reduced data packet is regarded as a new data packet to be transmitted.

In a preferred example, the present application can be further configured to further include:

Obtain the amount of sent data of the current transmission link according to the historical transmission information of the current transmission link;

comparing the sent data volume with a preset data volume threshold;

When the amount of sent data is not less than the preset data amount threshold:

Select the data volume in the data packet corresponding to the transmission batch with the smallest packet loss rate in the historical transmission information, and mark the data volume as the data volume of the standard data packet corresponding to the current transmission link.

In a preferred example, the present application can be further configured as follows: when the packet loss rate of the previous transmission batch is zero, increasing the data volume in the data packets of the current transmission batch by the first preset data volume to form The new packet to be transmitted.

In a preferred example of the present application, it may be further configured that: the first preset data amount is 128 bytes.

The second purpose of this application is to provide a complex network data packet transmission system.

The above-mentioned application purpose two of the present application is achieved through the following technical solutions:

A complex network packet delivery system, comprising:

The acquisition module is used to acquire the historical transmission information of the current transmission link, and obtain the packet loss rate of the previous transmission batch according to the historical transmission information;

a comparison module, configured to compare the packet loss rate of the last transmission batch with a preset packet loss rate;

A reduction module, used for reducing the data volume in the data packets of the current transmission batch by the first preset data volume to form a new data packet to be transmitted;

The adding module is used for increasing the data amount in the data packets of the current transmission batch by the first preset data amount to form a new data packet to be transmitted.

The third purpose of this application is to provide an intelligent terminal.

The above-mentioned application purpose three of the present application is achieved through the following technical solutions:

An intelligent terminal includes a memory and a processor, and the memory stores computer program instructions for the above-mentioned complex network data packet transmission method that can be loaded and executed by the processor.

The fourth object of the present application is to provide a computer medium capable of storing corresponding programs.

The above-mentioned application purpose four of the present application is achieved through the following technical solutions:

A computer-readable storage medium storing a computer program capable of being loaded by a processor and executing any one of the above-mentioned complex network data packet transmission methods.

Description of drawings

FIG. 1 is a schematic flowchart of a method for transmitting a complex network data packet in an embodiment of the present application.

FIG. 2 is a schematic structural diagram of a complex network data packet transmission system in an embodiment of the present application.

Description of reference numerals: 1. Obtaining module; 2. Comparing module; 3. Decreasing module; 4. Increasing module.

Detailed ways

This specific embodiment is only an explanation of the application, and it does not limit the application. After reading this specification, those skilled in the art can make modifications without creative contribution to this embodiment as needed, but only within the scope of the claims of the application. are protected by patent law.

In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

The embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

The present application provides a complex network data packet transmission method, and the main flow of the method is described as follows.

As shown in Figure 1:

Step S101: Acquire historical transmission information of the current transmission link, and obtain the packet loss rate of the previous transmission batch according to the historical transmission information.

At present, the general complex network data packet transmission process is to select data of a specific numerical size based on the complex network data packet transmission protocol, and transmit the data in the network channel; if this transmission method is applied in an end-to-end environment, Then it will not affect the transmission of data; but for the network environment of national operators, or even the network environment of cross-country regions, the above method can easily lead to certain problems in the transmission of complex network data packets; when the network environment When it belongs to a cross-country network environment, the data will be transmitted internationally. In the process of national transmission, the network environment is full of different operators, different routes and different transmission protocols. When network data packets are transmitted, multiple different data exchanges will be performed, and the network environment is particularly complex, which leads to certain problems in the transmission of complex network data packets; for example, for the TCP/IP protocol, in complex network data packet transmission In the process, multiple handshakes need to be performed, and the more complex the network environment, the more times of handshakes, which will result in the loss of data. Once the data is lost, it needs to be retransmitted, which is unavoidable. It is to put pressure on the bandwidth, and even the bandwidth is full, so that the actual transmission time of data transmission far exceeds the theoretical transmission time, resulting in low transmission efficiency of complex network data packets.

Generally, the maximum length of an IP data packet is 65535 bytes, about 64K bytes, which contains information such as the version of the IP protocol, the original address and the destination address. The above information needs to occupy 20 bytes; while the source port and destination port of the UDP header , length and check code and other information need 64 bits; then it seems that there are 65507 bytes of data for us to write; but in practice, the transmission of large files needs to go through multiple network devices, the operator will Set the MTU in the network device, which is the maximum transmission unit; when the data or file we transmit exceeds the maximum transmission unit, the data packet will be forced to be subcontracted.

For UDP transmission, the data packets are out of order. After the data packets are sub-packaged, if the sub-packet is lost or wrong, the entire data packet will be discarded, so the data packet needs to be retransmitted. ; Based on the above situation, sometimes the entire UDP transmission packet is unavailable due to the loss of several bits of data, which increases the packet loss rate and wastes bandwidth resources.

In order to solve the above problems, we need to know the maximum value of MTU, and then ensure that the data volume of the data packet to be transmitted does not exceed the maximum value of MTU. The MTU of the region can be kept at 1500 bytes, and the MTU of some regions will be less than 576 bytes, so it is necessary to monitor the MTU in the transmission link in real time to ensure that in each transmission process, the amount of data in the data packet to be transmitted The real-time maximum of MTU will not be exceeded.

In the embodiment of the present application, the historical transmission information of the current transmission link is obtained first; the historical transmission information here includes the data volume in the data packet of each transmission batch, the packet loss rate of each transmission batch and the The transmission time of the batch; it is understandable that the transmission batch here refers to each transmitted data packet in the current transmission link, and the behavior of each transmission of the data packet becomes a transmission batch.

Among them, the historical transmission information includes the first transmission information; that is, when the current transmission link has not yet performed transmission, the first transmission needs to be performed; if the current transmission link performs the first transmission: the first transmission The data packets to be transmitted in the transmission task are split into a plurality of sub-data packets of the second preset data volume and then transmitted through the current transmission link; wherein, the second preset data volume of the sub-data packets includes the IP header data volume and UDP header data volume; the second preset data volume here is a preset data volume. Since it is the first transmission in the current transmission link, there is no historical transmission information as a reference. Therefore, during transmission, in order to To avoid the situation that the first transmission fails due to the large amount of data in the data packet, split the data packet to be transmitted according to the second preset data amount, and then transmit each sub-data packet separately; The first 10 megabytes of the file are used as the data packet to be transmitted, and then the data packet is divided into sub-data packets of 1472 bytes, where the 1472 bytes are the second preset data amount, of which 1472 bytes do not contain IP 20 bytes of the header and 8 bytes of the UDP header; in the embodiment of the present application, in the process of dividing the data packet, since it is the first transmission in the current transmission link, 1500 bytes are used first, The 1500 bytes here is the maximum value of the theoretical MTU, and then the IP header and the UDP header are subtracted from the theoretical maximum value to obtain the second preset data amount in this application; that is, by using the above method The first transmission is performed, so that each sub-data packet can ensure its own successful transmission, and the relevant transmission information obtained through the first transmission can provide corresponding information for the next transmission, thereby improving the transmission efficiency of complex network data packets.

It can be understood that the above situation is for the first transmission in the current transmission link, if it is not the first transmission, then the historical transmission information is acquired, and then the following steps are taken to operate.

Step S102: Compare the packet loss rate of the last transmission batch with a preset packet loss rate.

Step S103: If the packet loss rate of the previous transmission batch is greater than the preset packet loss rate, reduce the data amount in the data packets of the current transmission batch by the first preset data amount to form a new data packet to be transmitted.

Step S104: If the packet loss rate of the previous transmission batch is less than the preset packet loss rate, increase the data amount in the data packets of the current transmission batch by the first preset data amount to form a new data packet to be transmitted.

After obtaining the historical transmission information, the packet loss rate of the previous transmission batch can be obtained, and the data transmission efficiency can be reflected by the packet loss rate. Then the packet loss rate of the previous transmission batch and the preset packet loss rate can be calculated Make a comparison; if the packet loss rate of the last transmission batch is greater than the preset packet loss rate, it means that there were many data packet losses during the last transmission process, which can reflect the data loss in the last transmission process. If the MTU in the link is reduced, it is necessary to correspondingly reduce the amount of data in the data packets of the current transmission batch to ensure that the packet loss rate in this transmission process meets the standard, thereby improving the transmission efficiency of complex network packets; The packet loss rate of the last transmission batch is less than the preset packet loss rate, which means that in the last transmission process, there was less data packet loss, which can reflect that in the last transmission process, the When the MTU increases, the amount of data in the data packets of the current transmission batch can be correspondingly increased, so that the amount of data transmitted this time is larger and the transmission efficiency of complex network data packets is improved.

In an example, the transmission information of the last transmission batch is analyzed, and the packet loss rate of the previous transmission batch is 16%, which exceeds the preset packet loss rate of 15%, then the data of the current transmission batch is The data volume in the packet is reduced by 128 bytes, where 128 bytes is the first preset data volume; if the packet loss rate of the previous transmission batch is 10%, which is less than the preset packet loss rate of 15%, then The data volume in the data packet of the current transmission batch is increased by 128 bytes; in the embodiment of the present application, 128 bytes is the preset data volume change value, which is the data volume change value set according to the loss function, which is used for the current data volume change value. The actual MTU in the transmission link is continuously tested, so as to accurately test the actual MTU size of the current transmission link; it is understandable that the loss function is also called the cost function, which is the value of random events or related random variables. A function that maps to a non-negative real number to represent the "risk" or "loss" of the random event; in practical applications, the loss function is usually associated with the optimization problem as a learning criterion, that is, the model is solved and evaluated by minimizing the loss function; For example, it is used for parameter estimation of models in statistics and machine science, in risk management and decision-making in macroeconomics, and in optimal control theory in control theory.

In the embodiment of the present application, after calculating by the loss function, it is determined that the data volume change value is 128 bytes, and by setting the data volume change value to 128 bytes, when adjusting the data volume in the data packet, whether it is Whether to increase or decrease the amount of data in the data packet can not only ensure that the change in the packet loss rate can be seen, reflecting the effect of the adjustment of the data amount, but also ensure that the adjustment of the data amount is not very large, and the packet loss rate will not change too much. In extreme cases, the reasonable adjustment of the data volume is ensured, so that the data volume in the data packet to be transmitted can match the MTU in the transmission link, thereby improving the transmission efficiency of complex network data packets.

In the embodiment of the present application, a preset minimum data amount is also set; when the data amount in the data packets of the current transmission batch is reduced, the data amount of the reduced data packet is obtained; then the data amount is compared with the preset data amount. The minimum data amount is compared; when the data amount is not less than the preset minimum data amount, the reduced data packet is regarded as a new data packet to be transmitted; it is understandable that when the packet loss rate in the previous transmission batch is higher than When it is high, the amount of data in the data packet to be transmitted needs to be reduced, but the amount of data cannot be reduced below the preset minimum data amount, otherwise certain problems will occur in the data packet itself; the preset minimum data amount in the embodiment of the present application is 512 bytes; that is, the amount of data within the packet cannot be less than 512 bytes.

It can be understood that, in this embodiment of the present application, 512 bytes are the preset minimum transmission unit data volume, that is, 512 bytes are used as the critical point of the data volume in the data packet, and when the data volume in the data packet reaches the critical point. When the point is reached, the data packet will not be adjusted downward; the downward adjustment here refers to reducing the data volume in the data packet after the data volume in the data packet reaches 512 bytes, because in the actual transmission process, when the data packet reaches 512 bytes When the amount of internal data reaches a critical point, it generally includes two situations, one is that the file itself is very small, and the other is the end file left after splitting the large file; for the data packets in the above two cases, the data If the amount of data is less than 512 bytes, there will be no problem, and when the amount of data is less than 512 bytes, the program will not interfere with the problem of data loss at this time. Therefore, the preset minimum data amount is set to 512 bytes. It can effectively avoid the waste of computer computing resources and improve the transmission and processing efficiency of complex network data packets.

In another example, there may be a situation where the packet loss rate is zero, then if the packet loss rate is zero, the data amount in the data packet corresponding to the current transmission batch is increased by the first preset data amount to form new data to be transmitted It is understandable that if the packet loss rate is zero, it may be because the transmission environment is a high-quality network environment such as a loopback or a local area network. At this time, you can adjust the data packets and increase the data packets to make the data packets adapt to the current network. environment, thereby increasing the rate and efficiency of data transfer.

In this embodiment of the present application, the amount of data sent on the current transmission link is obtained according to the historical transmission information of the current transmission link; When setting the data volume threshold, select the data volume in the data packet corresponding to the transmission batch with the smallest packet loss rate in the historical transmission information, and mark the data volume as the data volume of the standard data packet corresponding to the current transmission link; understandable At times, in the process of complex network data packet transmission, by analyzing the packet loss rate of each complex network data packet transmission, it can reflect the change of MTU in the data link, and then adjust the data packets to improve the complex network. The rate and efficiency of data packet transmission; then when the transmission link transmits a certain amount of data packets, for example, 100 megabytes; if the current transmission link has sent 100 megabytes, according to the transmitted batches The minimum packet loss rate is obtained from the transmission information of the second time, and then the data packets of the transmission batch corresponding to the packet loss rate are marked as the optimal data packets, and then the subsequent data packets are sent according to the data packet size; In this way, the quality of network use can be improved, the waste of bandwidth resources can be reduced, and the transmission rate and efficiency of complex network data packets can be improved.

In the embodiment of the present application, each transmission situation is recorded by means of a log.

In the embodiments of this application, a transmission link refers to a data link; a link refers to a passive point-to-point physical connection; in wired communication, a link refers to a physical line between two nodes, such as a cable or an optical fiber ; In radio communication, the link refers to the path space of electromagnetic waves propagating between the base station and the terminal; in data communication, the path between two computers is often formed by many links in series; for data links, the In other words, it is also necessary to have a communication protocol to control the transmission of data, and add hardware and software to implement the protocol to the link. This link is the data link, and the data link is also called a logical link; according to the communication link The connection method of the communication link can be divided into two categories, point-to-point connection communication link and multi-point connection communication link; according to the communication mode of the communication link, the communication link can be divided into two categories, one-way communication link and two-way communication link Communication link; according to the capacity of the communication link, the communication link can be divided into two categories, the communication link without capacity and the communication link with capacity.

It is understandable that in a complex network environment, such as transnational transmission links, it is necessary to go through technical and management factors such as technical standards of operators in different countries, equipment technologies of different manufacturers, and different protocol stacks in wireless and wired environments. When the general TCP/IT protocol is used for transmission, efficiency problems such as repeated retransmission of files and transmission failures often occur. However, in the embodiment of the present application, aiming at the improvement of the data packet transmission process in a complex network environment, the intelligent control function will greatly Improve the efficiency of complex network packet transmission.

The present application also provides a complex network data packet transmission system. As shown in FIG. 2, a complex network data packet transmission system includes an acquisition module 1 for acquiring historical transmission information of a current transmission link, and according to the historical transmission information Obtain the packet loss rate of the last transmission batch; the comparison module 2 is used to compare the packet loss rate of the previous transmission batch with the preset packet loss rate; the reduction module 3 is used to compare the current transmission batch The data volume in the data packet of the current transmission batch is reduced by the first preset data volume to form a new data packet to be transmitted; the adding module 4 is used to increase the data volume in the data packet of the current transmission batch by the first preset data volume to form a new data packet. Packets to transmit.

In order to better execute the program of the above method, the present application further provides an intelligent terminal, which includes a memory and a processor.

Among them, the memory can be used to store instructions, programs, codes, code sets or instruction sets. The memory can include a stored program area and a stored data area, wherein the stored program area can store instructions for implementing the operating system, instructions for at least one function, and instructions for implementing the above-mentioned complex network data packet transmission method, etc.; The storage data area Data and the like involved in the above-mentioned complex network data packet transmission method can be stored.

A processor may include one or more processing cores. The processor invokes the data stored in the memory by running or executing the instructions, programs, code sets or instruction sets stored in the memory, executing various functions of the present application and processing data. The processor may be at least one of an application specific integrated circuit, a digital signal processor, a digital signal processing device, a programmable logic device, a field programmable gate array, a central processing unit, a controller, a microcontroller, and a microprocessor. It can be understood that, for different devices, the electronic device used to implement the above processor function may also be other, which is not specifically limited in the embodiment of the present application.

The present application also provides a computer-readable storage medium, including, for example, a USB flash drive, a mobile hard disk, a read only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. A medium that can store program code. The computer-readable storage medium stores a computer program capable of being loaded by a processor and executing the above-described complex network data packet transmission method.

The above description is only a preferred embodiment of the present application and an illustration of the applied technical principle. Those skilled in the art should understand that the scope of disclosure involved in this application is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, and should also cover the above-mentioned technical features or Other technical solutions formed by any combination of its equivalent features. For example, a technical solution is formed by replacing the above features with the technical features disclosed in this application (but not limited to) with similar functions.

Claims (10)

1. a complex network data packet transmission method, is characterized in that, comprises: Obtain the historical transmission information of the current transmission link, and obtain the packet loss rate of the previous transmission batch according to the historical transmission information; The historical transmission information includes the amount of data in the data packets of each transmission batch, the packet loss rate of each transmission batch, and the transmission time of each transmission batch; comparing the packet loss rate of the last transmission batch with a preset packet loss rate; If the packet loss rate of the previous transmission batch is greater than the preset packet loss rate, reduce the data amount in the data packets of the current transmission batch by the first preset data amount to form a new data packet to be transmitted; If the packet loss rate of the previous transmission batch is less than the preset packet loss rate, the data amount in the data packets of the current transmission batch is increased by the first preset data amount to form a new data packet to be transmitted. 2. The complex network data packet transmission method according to claim 1, wherein the step of obtaining the historical transmission information of the current transmission link comprises: The historical transmission information includes the first transmission information; If the current transmission link performs the first transmission: The data packets to be transmitted in the first transmission task are split into a plurality of sub-data packets of the second preset data amount and then transmitted through the current transmission link. 3 . The method for transmitting complex network data packets according to claim 2 , wherein the second preset data volume of the sub-data packet includes an IP header data volume and a UDP header data volume. 4 . 4. The complex network data packet transmission method according to claim 1, further comprising: When reducing the data volume in the data packets of the current transmission batch, obtain the data volume of the reduced data packets; comparing the amount of data with a preset minimum amount of data; When the data amount is not less than the preset minimum data amount, the reduced data packet is regarded as a new data packet to be transmitted. 5. The complex network data packet transmission method according to claim 1, further comprising: Obtain the amount of sent data of the current transmission link according to the historical transmission information of the current transmission link; comparing the sent data volume with a preset data volume threshold; When the amount of sent data is not less than the preset data amount threshold: Select the data volume in the data packet corresponding to the transmission batch with the smallest packet loss rate in the historical transmission information, and mark the data volume as the data volume of the standard data packet corresponding to the current transmission link. 6. The complex network data packet transmission method according to claim 1, further comprising, when the packet loss rate of the previous transmission batch is zero, increasing the amount of data in the data packets of the current transmission batch The first preset data amount forms a new data packet to be transmitted. 7 . The method for transmitting complex network data packets according to claim 1 , wherein the first preset data size is 128 bytes. 8 . 8. A complex network data packet transmission system, comprising: The acquisition module (1) is used to acquire the historical transmission information of the current transmission link, and obtain the packet loss rate of the previous transmission batch according to the historical transmission information; a comparison module (2), configured to compare the packet loss rate of the last transmission batch with a preset packet loss rate; A reduction module (3), configured to reduce the data amount in the data packets of the current transmission batch by the first preset data amount to form a new data packet to be transmitted; An adding module (4) is configured to increase the data amount in the data packets of the current transmission batch by the first preset data amount to form a new data packet to be transmitted. 9. An intelligent terminal, characterized by comprising a memory and a processor, wherein the memory stores computer program instructions capable of being loaded by the processor and executing the method according to any one of claims 1-7. 10. A computer-readable storage medium, characterized by storing a computer program capable of being loaded by a processor and executing the method according to any one of claims 1-7.

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