CN103227794A - Data transmission control method, device and system - Google Patents

Abstract

The present invention provides a data transmission control method, device, and system. A proxy device obtains current connection information and/or system information, and determines a window adjustment strategy corresponding to the current connection information and/or system information, wherein the The window adjustment policy is information for instructing to adjust the size of the data transmission window; according to the window adjustment policy, the size of the data transmission window is adjusted. It can effectively overcome the problem existing in the existing method of controlling the number of connected clients by controlling the Socket interface: the problem of poor data transmission control effect.

Description

Data transmission control method, device and system

technical field

The embodiments of the present invention relate to network technologies, and in particular to a data transmission control method, device and system.

Background technique

When performing data communication between the client and the server, a proxy device, such as a proxy server, a Web server, etc., as a transit device between the client and the server, can forward the data sent by the client to the server, and can also transfer the data sent by the client to the server. The data sent by the server is forwarded to the client.

Due to the limited data processing capability of the proxy device, it is necessary to control the data transmission between the client and the server to avoid data backlog caused by too much business data processed by the proxy device, which makes some data unable to be processed in time and affects the transmission efficiency of business data .

At present, the application (Application, App) on the proxy server generally controls the number of connected clients through the control socket (Socket) interface, so as to realize the limitation of business data transmission and avoid the backlog of excessive data transmission on the proxy server. Among them, the business data transmission is limited based on the Socket interface, specifically, the number of concurrent connections of the client is controlled through the number of Socket interfaces created, thereby limiting the transmission volume of business data.

However, the current method of controlling the number of connected clients by controlling the Socket interface cannot effectively control the client to send or receive a large amount of data, so that the proxy server still cannot process a large amount of data at the same time, which will also cause a backlog of data, affecting the efficiency of data transmission. The control effect is poor.

Contents of the invention

The present invention provides a data transmission control method, device and system, which can effectively overcome the problem of poor data transmission control effect existing in the existing way of restricting service data transmission by controlling a Socket interface.

In a first aspect, a data transmission control method is provided, including:

The proxy device acquires current network state information between the client and the server, and determines a window adjustment policy corresponding to the current network state information, where the window adjustment policy is information used to indicate the size of the data transmission window to be adjusted;

The proxy device adjusts the size of the data transmission window according to the window adjustment policy.

Based on the first aspect, in a first possible implementation manner, the proxy device adjusts the size of the data transmission window according to the window adjustment policy, specifically including:

When the proxy device receives the connection establishment request message sent by the client, or receives the connection establishment request response message sent by the server, it adjusts the size of the data transmission window according to the window adjustment policy, and transmits the adjusted data to The window is sent to the client or the server, so that the client or the server performs data transmission according to the adjusted data transmission window.

Based on the first aspect, in a second possible implementation manner, the adjusting the size of the data transmission window according to the window adjustment strategy specifically includes:

When the proxy device receives the data request sent by the client or the server, it adjusts the size of the data transmission window according to the window adjustment policy, and sends the adjusted data transmission window to the client or the server, making the client or the server perform data transmission according to the adjusted data transmission window.

Based on the first aspect or the first or second possible implementation of the first aspect, in a third possible implementation, the network state information includes the business type or At least one of data flow information, the type of the client, the number of connections between the client and the proxy device, the processing capability of the proxy device, or network resource occupation.

In a second aspect, a data transmission control device is provided, including:

A determining module, configured to obtain current network status information between the client and the server, and determine a window adjustment strategy corresponding to the current network status information, where the window adjustment strategy is information used to indicate the size of the data transmission window to be adjusted ;

An adjustment module, configured to adjust the size of the data transmission window according to the window adjustment strategy determined by the determination module.

Based on the second aspect, in a first possible implementation manner, the adjustment module is specifically configured to, when receiving a connection establishment request message sent by a client, or a connection establishment request response message sent by a server, A window adjustment strategy, adjusting the size of the data transmission window, and sending the adjusted data transmission window to the client or the server, so that the client or the server can adjust the data transmission window according to the adjusted data transmission window for data transfer.

Based on the second aspect, in a second possible implementation manner, the adjustment module is specifically configured to adjust the size of the data transmission window according to the window adjustment strategy when receiving the data request sent by the client or the server, The adjusted data transmission window is sent to the client or the server, so that the client or the server performs data transmission according to the adjusted data transmission window.

Based on the second aspect or the first or second possible implementation of the second aspect, in a third possible implementation, the network status information includes the business type or At least one of data flow information, the type of the client, the number of connections between the client and the proxy device, the processing capability of the proxy device, or network resource occupation.

In a third aspect, a data transmission control system is provided, including: a proxy device, a client, and a server;

The proxy device includes the data transmission control device described in the second aspect;

The client is configured to receive the resized data transmission window sent by the proxy device, and perform data transmission according to the resized data transmission window;

The server is configured to receive the resized data transmission window sent by the proxy device, and perform data transmission according to the resized data transmission window;

The adjusted data transmission window is when the proxy device receives a connection establishment request message sent by the client, or receives a connection establishment request response message sent by the server, or receives a data request sent by the client or the server , according to the window adjustment strategy, the data transmission window after adjusting the size of the data transmission window;

The window adjustment policy is a window adjustment policy corresponding to the current network state information determined by the proxy device after obtaining the current network state information between the client and the server.

Based on the third aspect, in a first possible implementation manner, the network status information includes service type or data flow information between the client or the server, the type of the client, the client and At least one of the number of connections between the proxy devices, the processing capability of the proxy devices, or the occupation of network resources.

The present invention can determine the window adjustment strategy matching the network state information based on the current network state information, thereby adjusting the size of the data transmission window between the client and the server according to the window adjustment strategy, so that During data communication, data transmission can be performed based on the data transmission window after the window size is adjusted, which can effectively control the amount of data transmission, avoid the problem that the proxy device cannot be processed in time due to excessive data transmission, and can effectively control the process of data transmission Carry out real-time control and improve the effect of data transmission control.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic flowchart of a data transmission control method provided in Embodiment 1 of the present invention;

FIG. 2 is a signaling diagram of a data transmission control method provided by another embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a data transmission control device provided by another embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a data transmission control device provided by another embodiment of the present invention;

Fig. 5 is a schematic structural diagram of a data transmission control system provided by another embodiment of the present invention.

Detailed ways

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

In order to overcome the problems existing in the existing technology of controlling data transmission by limiting the number of service connections, the technical solution of the embodiment of the present invention can adjust the size of the notification window based on the window adjustment strategy by obtaining the window adjustment strategy, so that the adjusted The window size can be adapted to the current network connection status and/or resource occupation, so as to avoid output transmission delay caused by excessive data transmission. The following will be described with specific examples.

FIG. 1 is a schematic flowchart of a data transmission control method provided by Embodiment 1 of the present invention. This embodiment can be applied to network data transmission. The execution subject of the method in this embodiment is a proxy device (such as a proxy server or a Web server), which can forward the data sent by the client as a forwarding device between the client and the server. To the server, it can also forward the data sent by the server to the client; the proxy device can adjust the window size of the data transmission between the client and the server based on the currently obtained network status information, so as to control the communication between the client and the server. The data transmission, specifically, as shown in Figure 1, the method of this embodiment may include the following steps:

101. The proxy device acquires network state information between the client and the server, and determines a window adjustment policy corresponding to the network state information, where the window adjustment policy is information used to indicate the size of the data transmission window to be adjusted;

In this embodiment, the network status information includes the type of business between the client or the server, the type of the client, the number of connections between the client and the proxy device, the proxy device At least one of processing capability or network resource occupation.

When step 101 is specifically implemented, the application program of the proxy device can be used to identify information such as the service type requested by the current client or server, the type of the client, or detect the current processing capability of the proxy device or current network resource consumption, or detect the client. Information such as the number of Socket connections with the proxy device.

Assuming that the application determines whether the business type currently requested by the client or server exceeds the specification limit, or whether the current processing capability of the proxy device or the consumption of network resources exceeds the alarm threshold, it is determined that the data transmission between the client and the server needs to be restricted ; In this embodiment, the application program may specifically determine a window adjustment policy corresponding to the network status information, where the window adjustment policy is information used to indicate the size of the data transmission window to be adjusted.

102. The proxy device adjusts the size of the data transmission window according to the window adjustment policy.

Those skilled in the art can understand that the adjusting the size of the data transmission window specifically refers to adjusting the window factor of the data transmission window between the client and the server.

When step 102 is specifically implemented, after the application program of the proxy device determines the window adjustment policy corresponding to the network state information, the application program of the proxy device can send the determined window adjustment policy to the protocol stack of the proxy device; When the device receives the connection establishment request message sent by the client, or when it receives the connection establishment request response message sent by the client, or when it receives the data request sent by the client or the server, the protocol stack of the proxy device can according to the Window adjustment strategy, adjusting the size of the data transmission window, and sending the resized data transmission window to the client or server, so that the client or server performs data transfer according to the resized data transmission window transmission.

For example, when the application program of the proxy device determines that the current network resource consumption is too large, in order to avoid the impact of a large amount of data on the server, the window adjustment policy determined by the application program can be, for example, to delete the data transmission window factor or reduce the data transmission window factor. After the protocol stack receives the window adjustment policy, it can delete the data transmission window factor or reduce the data transmission window factor accordingly;

Or, when the application program determines that the service type currently requested by the client is a video service, the application program can determine the window adjustment strategy corresponding to the current service type according to the preset priority level of the service type. Assuming that the video service has the highest priority level, Then the determined window adjustment strategy corresponding to the video service may be to enlarge the data transmission window factor; after the protocol stack receives the window adjustment strategy, correspondingly, the data transmission window factor may be enlarged or the data transmission window factor may be reduced;

Or, when the application program detects that the processing capability of the agent device is recovered, in order to improve the data transmission between the client and the server, the window adjustment policy determined by the application program can be, for example, amplifying the data transmission window factor; when the protocol stack receives the window adjustment policy Then, correspondingly, the data transmission window factor may be enlarged or reduced.

In an optional embodiment of the present invention, the above network status further includes data flow information between the client or the server, where the data flow information includes but not limited to Transmission Control Protocol (Transmission Control Protocol, TCP) feature value or Internet Protocol (Internet Protocol, IP) feature value, specifically, the protocol stack of the proxy device can also determine the window adjustment strategy corresponding to the data flow information according to the currently received data flow information, for example, according to the data flow The Differentiated Services Code Point (DSCP) in the IP header identifies whether the priority of the data flow is higher. If it is higher, the determined window adjustment strategy can be to enlarge the data transmission window factor. After that, the protocol stack The data transmission window factor is enlarged according to the determined window adjustment strategy.

To sum up, the data transmission control method provided by the embodiment of the present invention can determine the window adjustment policy that matches the network state information based on the current network state information, so as to adjust the data transmission window between the client and the server according to the window adjustment policy. The size is adjusted so that during data communication between the client and the server, data transmission can be performed based on the data transmission window after the window size is adjusted, which can effectively control the amount of data transmission and avoid excessive data transmission that will cause the proxy device to fail. Timely processing of problems can effectively control the process of data transmission control in real time and improve the effect of data transmission control.

Fig. 2 is a signaling diagram of a data transmission control method provided by another embodiment of the present invention, as shown in Fig. 2 , including:

201. The proxy device determines a window adjustment policy corresponding to the current network state information according to the current network state information between the client and the server.

In specific implementation, for example, the application program of the proxy device can identify information such as the service type requested by the current client or server, the type of the client, or detect the current processing capability of the proxy device or current network resource consumption, or detect the client Information such as the number of Socket connections with the proxy device.

Assuming that the application determines whether the business type currently requested by the client or server exceeds the specification limit, or whether the current processing capability of the proxy device or the consumption of network resources exceeds the alarm threshold, it is determined that the data transmission between the client and the server needs to be restricted ; In this embodiment, the application program may specifically determine a window adjustment policy corresponding to the network status information, where the window adjustment policy is information used to indicate the size of the data transmission window to be adjusted.

For another example, the data flow information between the client and the server can also be obtained through the protocol stack of the proxy device, wherein the data flow information includes but is not limited to Transmission Control Protocol (Transmission Control Protocol, TCP) characteristic value or Internet Protocol (Internet Protocol, IP) characteristic value, determine the window adjustment strategy corresponding to the data flow information, for example, according to the Differentiated Services Code Point (Differentiated Services Code Point, DSCP) in the IP header of the data flow, identify whether the priority of the data flow is higher, If higher, the determined window adjustment strategy may be to enlarge the data transmission window factor.

202. The proxy device adjusts the size of the data transmission window according to the window adjustment policy.

During specific implementation, when the proxy device receives the connection establishment request message sent by the client, or receives the connection establishment request response message sent by the client, or receives the data request sent by the client or server, the protocol of the proxy device The stack can adjust the size of the data transmission window according to the window adjustment policy.

203. The proxy device sends the adjusted data transmission window to the client and the server.

204. The client and the server perform data transmission according to the adjusted data transmission window sent by the proxy device.

After receiving the adjusted data transmission window sent by the proxy device, the client or the server changes the data transmission specification.

In the embodiment of the present invention, the proxy device determines the window adjustment policy that matches the network state information according to the acquired current network state information, thereby adjusting the size of the data transmission window between the client and the server according to the window adjustment policy, so that the client During data communication between the terminal and the server, data transmission can be performed based on the data transmission window after the window size is adjusted, which can effectively control the amount of data transmission and avoid the problem that the proxy device cannot be processed in time due to excessive data transmission. Effectively carry out real-time control on the data transmission control process, and improve the effect of data transmission control.

Fig. 3 is a schematic structural diagram of a data transmission control device provided by another embodiment of the present invention, as shown in Fig. 3 , including:

The determining module 31 is configured to obtain current network state information between the client and the server, and determine a window adjustment policy corresponding to the current network state information, the window adjustment policy being used to indicate to adjust the size of the data transmission window information;

The adjustment module 32 is configured to adjust the size of the data transmission window according to the window adjustment policy determined by the determination module.

For example, the adjustment module 32 is specifically configured to adjust the size of the data transmission window according to the window adjustment strategy when receiving the connection establishment request message sent by the client or the connection establishment request response message sent by the server, The adjusted data transmission window is sent to the client or the server, so that the client or the server performs data transmission according to the adjusted data transmission window.

For example, the adjustment module 32 is further configured to adjust the size of the data transmission window according to the window adjustment strategy when receiving the data request sent by the client or the server, and send the adjusted data transmission window to the The client or the server, so that the client or the server performs data transmission according to the adjusted data transmission window.

For example, the network state information includes service type or data flow information between the client or the server, the type of the client, the number of connections between the client and the proxy device, the at least one of the processing capability of the proxy device or the occupation of network resources.

In the embodiment of the present invention, the proxy device determines the window adjustment policy that matches the network state information according to the acquired current network state information, thereby adjusting the size of the data transmission window between the client and the server according to the window adjustment policy, so that the client During data communication between the terminal and the server, data transmission can be performed based on the data transmission window after the window size is adjusted, which can effectively control the amount of data transmission and avoid the problem that the proxy device cannot be processed in time due to excessive data transmission. Effectively carry out real-time control on the data transmission control process, and improve the effect of data transmission control.

Fig. 4 is a schematic structural diagram of a data transmission control device provided by another embodiment of the present invention. As shown in Fig. 4, it includes: a processor, a memory and a communication bus, and the processor is connected to the memory through the communication bus, wherein the memory stores There are instructions for implementing the data transmission control method. Further, the device further includes a communication interface, and communicates with other network element devices (such as a client and a server) through the communication interface.

When the processor fetches an instruction in the memory, the following steps can be performed:

Obtaining current network status information between the client and the server, and determining a window adjustment strategy corresponding to the current network status information, where the window adjustment strategy is information used to indicate the size of the data transmission window;

According to the window adjustment strategy, the size of the data transmission window is adjusted.

For example, the adjusting the size of the data transmission window according to the window adjustment strategy specifically includes:

When receiving the connection establishment request message sent by the client or the connection establishment request response message sent by the server, adjust the size of the data transmission window according to the window adjustment strategy, and send the adjusted data transmission window to The client or the server, so that the client or the server performs data transmission according to the adjusted data transmission window.

For example, the adjusting the size of the data transmission window according to the window adjustment strategy specifically includes:

When receiving the data request sent by the client or the server, adjust the size of the data transmission window according to the window adjustment strategy, and send the adjusted data transmission window to the client or the server, so that all The client or the server performs data transmission according to the adjusted data transmission window.

For example, the network state information includes service type or data flow information between the client or the server, the type of the client, the number of connections between the client and the proxy device, the at least one of the processing capability of the proxy device or the occupation of network resources.

In the embodiment of the present invention, the proxy device determines the window adjustment policy that matches the network state information according to the acquired current network state information, thereby adjusting the size of the data transmission window between the client and the server according to the window adjustment policy, so that the client During data communication between the terminal and the server, data transmission can be performed based on the data transmission window after the window size is adjusted, which can effectively control the amount of data transmission and avoid the problem that the proxy device cannot be processed in time due to excessive data transmission. Effectively carry out real-time control on the data transmission control process, and improve the effect of data transmission control.

FIG. 5 is a schematic structural diagram of a data transmission control system provided by another embodiment of the present invention, as shown in FIG. 5 , including: a proxy device 51, a client 52 and a server 53;

The proxy device 51 includes the data transmission control device described in the embodiment shown in FIG. 3 or FIG. 4;

The client 52 is configured to receive the resized data transmission window sent by the proxy device, and perform data transmission according to the resized data transmission window;

The server 53 is configured to receive the resized data transmission window sent by the proxy device, and perform data transmission according to the resized data transmission window;

The adjusted data transmission window is when the proxy device receives a connection establishment request message sent by the client, or receives a connection establishment request response message sent by the server, or receives a data request sent by the client or the server , according to the window adjustment strategy, the data transmission window after adjusting the size of the data transmission window;

The window adjustment policy is a window adjustment policy corresponding to the current network state information determined by the proxy device after obtaining the current network state information between the client and the server.

The network status information includes service type or data flow information between the client or the server, the type of the client, the number of connections between the client and the proxy device, the proxy device's At least one of processing capability or network resource occupation.

In the embodiment of the present invention, the proxy device determines the window adjustment policy that matches the network state information according to the acquired current network state information, thereby adjusting the size of the data transmission window between the client and the server according to the window adjustment policy, so that the client During data communication between the terminal and the server, data transmission can be performed based on the data transmission window after the window size is adjusted, which can effectively control the amount of data transmission and avoid the problem that the proxy device cannot be processed in time due to excessive data transmission. Effectively carry out real-time control on the data transmission control process, and improve the effect of data transmission control.

Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (10)

1. a data transfer control method is characterized in that, comprising:

Agent equipment obtains network state information current between client and the server, determines and the described current corresponding window adjustment strategy of network state information that described window adjustment strategy is the information that is used to indicate the size of adjusting the transfer of data window;

Described agent equipment is adjusted strategy according to described window, and the size of transfer of data window is adjusted.

2. data transfer control method according to claim 1 is characterized in that, described agent equipment is adjusted strategy according to described window, and the size of transfer of data window is adjusted, and specifically comprises:

Described agent equipment receives that client sends connect request message or connecting during request response of receiving that server sends, adjust strategy according to described window, adjust the size of transfer of data window, described adjusted transfer of data window is sent to described client or described server, so that described client or described server carry out transfer of data according to described adjusted transfer of data window.

3. data transfer control method according to claim 1 is characterized in that, and is described tactful according to described window adjustment, and the size of transfer of data window is adjusted, and specifically comprises:

When described agent equipment receives the request of data of client or server transmission, adjust strategy according to described window, adjust the size of transfer of data window, described adjusted transfer of data window is sent to described client or described server, so that described client or described server carry out transfer of data according to described adjusted transfer of data window.

4. according to each described data transfer control method of claim 1-3, it is characterized in that described network state information comprises type of service or the number of connection between traffic flow information, the type of described client, described client and the described agent equipment, the disposal ability of described agent equipment or at least one item in the resource occupying situation between described client or the described server.

5. a data transfer controller is characterized in that, comprising:

Determination module is used to obtain network state information current between client and the server, determines and the described current corresponding window adjustment strategy of network state information that described window adjustment strategy is the information that is used to indicate the size of adjusting the transfer of data window;

Adjusting module, the window that is used for determining according to described determination module is adjusted strategy, and the size of transfer of data window is adjusted.

6. device according to claim 5, it is characterized in that, described adjusting module, specifically be used to receive client sends connect request message or connecting during request response of receiving that server sends, adjust strategy according to described window, adjust the size of transfer of data window, described adjusted transfer of data window is sent to described client or described server, so that described client or described server carry out transfer of data according to described adjusted transfer of data window.

7. device according to claim 5, it is characterized in that, described adjusting module, when specifically being used to receive the request of data of client or server transmission, adjust strategy according to described window, adjust the size of transfer of data window, described adjusted transfer of data window is sent to described client or described server, so that described client or described server carry out transfer of data according to described adjusted transfer of data window.

8. according to each described agent equipment of claim 5-7, it is characterized in that described network state information comprises type of service or the number of connection between traffic flow information, the type of described client, described client and the described agent equipment, the disposal ability of described agent equipment or at least one item in the resource occupying situation between described client or the described server.

9. a data transfer control system is characterized in that, comprising: agent equipment, client and server;

Described agent equipment comprises each described data transfer controller of claim 5-8;

Described client is used to receive the transfer of data window after the adjustment size that described agent equipment sends, and carries out transfer of data according to the transfer of data window after the described adjustment size;

Described server is used to receive the transfer of data window after the adjustment size that described agent equipment sends, and carries out transfer of data according to the transfer of data window after the described adjustment size;

Transfer of data window after the described adjustment size be described agent equipment receive that client sends connect request message or receive that server sends connect during request response or receive client or during request of data that server sends, adjust strategy according to window, adjust the size transfer of data window afterwards of transfer of data window;

Described window adjustment strategy is that described agent equipment obtains network state information current between client and the server, and the definite and described current corresponding window of network state information is adjusted strategy.

10. system according to claim 9, it is characterized in that described network state information comprises type of service or the number of connection between traffic flow information, the type of described client, described client and the described agent equipment, the disposal ability of described agent equipment or at least one item in the resource occupying situation between described client or the described server.

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