WO2017161840A1

WO2017161840A1 - Data stream transmission method and device

Info

Publication number: WO2017161840A1
Application number: PCT/CN2016/098067
Authority: WO
Inventors: 李晓龙
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-03-24
Filing date: 2016-09-05
Publication date: 2017-09-28
Also published as: CN107231303A

Abstract

Provided are a data stream transmission method and device. The method comprises: a terminal copying a data stream message to be transmitted to obtain a plurality of data stream messages; the terminal simultaneously sending the plurality of data stream messages at a plurality of wide area network (WAN) ports on the terminal; and the terminal monitoring a protocol message corresponding to the data stream message at the plurality of WAN ports, and according to a feedback speed of the protocol message, choosing the optimal WAN port for transmitting the data stream message. By applying the technical solution, the problem that a WAN port for data stream distribution of a terminal is not the optimal path thereof is solved, thereby realizing the rationality of the WAN port for the data stream distribution of the terminal.

Description

Data stream transmission method and device

Technical field

The present invention relates to the field of communications, and in particular to a data stream transmission method and apparatus.

Background technique

In the related art, there are two main types of port selection methods in the dual-area network (Wide Area Network (WAN) port technology): one is pseudo load balancing, that is, different allocation is performed according to the IP address of the LAN side device. In essence, the lines are allocated in units of the IP of the intranet PC. For example, PCs 1, 3, and 5 go WAN1, 2, 4, and 6 to WAN2. With the above technical solution, an intranet PC can only use one WAN port, and does not have the effect of bandwidth superposition, which wastes the bandwidth of multiple lines. It is not difficult to conclude that IP equalization is equivalent to the superposition of two or more single WAN products. The second is done by a port load balancing function. The bandwidth aggregation router is designed to send the Internet requests sent by the PC to different WAN ports according to the busy and idle levels. When the Internet data comes back, it can also be returned through different WAN ports. Each PC can access the Internet and can communicate with multiple ports at the same time. Therefore, when opening web browsing, downloading, etc., since these port data can be allocated to different WAN ports, the PC does not have to be on an external line one by one. Send the port data stream, and wait for the return, but the data transmission can be carried out simultaneously in several WAN ports, and several WAN ports respectively return the data. As a result, the PC achieves the purpose of using multiple lines to access the Internet, and the bandwidth is doubled. effect. That is, port 80 (HyperText Transfer Protocol (http)) performs data communication on WAN1, and port 21 (File Transfer Protocol (ftp)) performs data communication on WAN2.

The related art has the disadvantage that the load balancing function in linux is based on the port to perform a certain proportion of data distribution. Although the bandwidth can be effectively increased, the fatal disadvantage is that the WAN port of a certain data stream may not be optimized. The path, that is, the inability to perform accurate data flow routing assignment based on any data stream. For example, if one WAN port is a mobile LTE network and the other WAN port is a wired wired network, if the data stream is intended to access the telecommunications server and is assigned to the mobile network, the actual delay of the data stream is Relatively large, the user experience is very bad.

For the related art, the WAN port allocated by the terminal for data flow is not the problem of its optimized path, and there is currently no effective solution.

Summary of the invention

The present invention provides a data stream transmission method and apparatus to solve at least the problem that the WAN port of the data stream allocation of the terminal in the related art is not its optimized path.

According to an aspect of the embodiments of the present invention, a data stream transmission method is provided, including:

The terminal processes the data stream packet to be transmitted, and obtains the plurality of the data stream packet;

The terminal simultaneously sends multiple data stream messages on multiple WAN ports on the terminal;

The terminal monitors, in the multiple WAN ports, the first response packet corresponding to the data flow packet, and selects the optimal transmission of the data flow packet according to the fast feedback speed of the first response packet. WAN port.

Optionally, the optimal WAN port for transmitting the data stream message according to the speed of the feedback of the first response message includes: the optimal WAN port is the first of the plurality of WAN ports. The fastest WAN port in response to the message.

Optionally, after selecting the optimal WAN port for transmitting the data flow message according to the speed of the feedback of the first response message, the method further includes: the terminal stops copying the data flow message And transmitting the data flow packet through the optimal WAN port.

Optionally, before the data stream packet to be transmitted by the terminal is copied, the method includes:

Querying, in the dynamic routing table, an entry of the data flow corresponding to the data flow message, where the dynamic routing table is composed of a WAN port and feature information of a data flow corresponding to the WAN port, where the dynamic routing table is used. Configuring a transmission path of the data stream of the terminal;

If the entry corresponding to the data flow is not found, the data flow message to be transmitted by the terminal is triggered to be copied.

When an entry corresponding to the data flow is found in the dynamic routing table, a transmission path is configured for the data flow according to the routing configuration information of the entry.

Optionally, after the selecting, according to the speed of the feedback of the first response packet, the optimal WAN port of the data stream packet, the method further includes:

The terminal records the correspondence between the optimal WAN port and the data flow into the dynamic routing table.

Transmitting, by the terminal, the detection packet corresponding to the plurality of the data flow packets on the WAN port of the plurality of wide area networks on the terminal;

The terminal monitors the response packet corresponding to the detection packet on the plurality of WAN ports, and selects an optimal WAN port for transmitting the data packet according to the feedback speed of the response packet.

Optionally, the method further includes: after the terminal sends the detection packet corresponding to the plurality of the data flow packets, the multiple WAN ports on the terminal are more than The WAN port of the wide area network sends the data stream message.

Optionally, the selecting, according to the speed of the feedback of the second response packet, the optimal WAN port for transmitting the data stream packet includes: the optimal WAN port is the feedback of the second WAN port The fastest WAN port in response to the message.

Optionally, after selecting the optimal WAN port for transmitting the data stream message according to the speed of the feedback of the second response message, the method further includes: the terminal stops copying the data stream message And transmitting the data flow packet through the optimal WAN port.

Optionally, before the data stream packet to be transmitted by the terminal is copied, the method includes: when the entry corresponding to the data stream is found in the dynamic routing table, according to the routing configuration information of the entry The data flow configures the transmission path.

Optionally, after selecting the optimal WAN port for transmitting the data flow message according to the speed of the feedback speed of the second response message, the method further includes: the terminal, the optimal WAN port and The correspondence of the data streams is recorded in the dynamic routing table.

Optionally, the detection packet includes: a Ping detection packet.

According to another aspect of the present invention, a data stream transmission apparatus is provided, which is applied to a terminal, and includes:

a first copy module, configured to copy a data stream message to be transmitted, to obtain a plurality of the data stream messages;

a first sending module, configured to send, by the terminal, a plurality of the data stream messages at a plurality of wide area network WAN ports on the terminal;

The first monitoring module is configured to: in the first WAN port, listen to the first response packet corresponding to the data flow packet, and select, according to the feedback speed of the protocol packet, the data packet to be transmitted. The optimal WAN port.

a second copy module, configured to copy the data stream message to be transmitted, to obtain a plurality of the data stream messages;

a second sending module, configured to send, by using a plurality of wide area network WAN ports on the terminal, detection packets corresponding to the plurality of data flow packets;

The second monitoring module is configured to monitor, in the multiple WAN ports, a second response packet corresponding to the detection packet, and select, according to a speed of the feedback speed of the second response packet, to transmit the data packet. The optimal WAN port.

According to still another embodiment of the present invention, a storage medium is also provided. The storage medium is arranged to store program code for performing the following steps:

Optionally, the storage medium is further arranged to store program code for performing the following steps:

The optimal WAN port is the fastest WAN port in the plurality of WAN ports that feeds back the first response message.

After selecting the optimal WAN port for transmitting the data stream message according to the speed of the feedback of the first response message, the terminal stops copying the data stream message, and passes the data stream message through the Describe the optimal WAN port transmission.

Before the data stream packet to be transmitted by the terminal is copied, the dynamic routing table searches for an entry of the data stream corresponding to the data stream packet, where the dynamic routing table is configured by the WAN port and the data corresponding to the WAN port. The feature information of the stream is configured to configure a transmission path of the data stream of the terminal;

In the case that the entry corresponding to the data stream is found in the dynamic routing table before the data stream packet to be transmitted by the terminal is copied, the transmission path is configured for the data stream according to the routing configuration information of the entry. .

After selecting the optimal WAN port for transmitting the data stream message according to the speed of the feedback speed of the first response message, the terminal records the correspondence between the optimal WAN port and the data stream to the In the dynamic routing table.

According to still another embodiment of the present invention, a storage medium is also provided. The storage medium is configured to store program code for performing the following steps: the terminal to copy the data stream message to be transmitted to obtain a plurality of the data stream message; the terminal is in the plurality of wide area network WAN ports on the terminal Sending a detection packet corresponding to the plurality of the data stream packets; the terminal listening to the response packet corresponding to the detection packet on the plurality of WAN ports, according to the speed of the feedback of the response packet Select the optimal WAN port for transmitting the data packet.

After the plurality of wide area network WAN ports on the terminal send the detection packets corresponding to the plurality of the data stream messages, the terminal sends the data flow report on the WAN ports of the plurality of wide area networks on the terminal. Text.

The optimal WAN port is the fastest WAN port in the plurality of WAN ports that feeds back the second response message.

Before the data stream packet to be transmitted by the terminal is copied, the dynamic routing table searches for an entry of the data stream corresponding to the data stream packet, where the dynamic routing table is configured by the WAN port and the data corresponding to the WAN port. The feature information of the stream is configured to configure a transmission path of the data stream of the terminal; if the entry corresponding to the data stream is not found, triggering the data flow report to be transmitted by the terminal The text is copied.

After selecting the optimal WAN port for transmitting the data stream message according to the speed of the feedback speed of the second response message, the terminal records the correspondence between the optimal WAN port and the data stream to the In the dynamic routing table.

According to the embodiment of the present invention, the data stream packet to be transmitted by the terminal is copied to obtain a plurality of the data stream packets; the terminal simultaneously sends a plurality of the data stream packets in the WAN ports of the plurality of wide area networks on the terminal; the terminal The plurality of WAN ports are configured to monitor the first response packet corresponding to the data flow packet, and select an optimal WAN port for transmitting the data flow packet according to the feedback speed of the first response packet, thereby solving the terminal The WAN port allocated by the data stream is not the problem of its optimized path, and the rationality of the WAN port for the data stream allocation of the terminal is realized.

DRAWINGS

The drawings described herein are intended to provide a further understanding of the invention, and are intended to be a part of the invention. In the drawing:

1 is a flowchart 1 of a data stream transmission method according to an embodiment of the present invention;

2 is a second flowchart of a data stream transmission method according to an embodiment of the present invention;

3 is a block diagram 1 of a structure of a data stream transmission apparatus according to an embodiment of the present invention;

4 is a block diagram 2 of a data stream transmission apparatus according to an embodiment of the present invention;

5 is a schematic diagram of a dynamic routing table in accordance with a preferred embodiment of the present invention;

6 is a block diagram showing the structure of a data transmission apparatus according to a preferred embodiment of the present invention;

7 is a flow chart of a data transmission method in accordance with a preferred embodiment of the present invention.

detailed description

The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

Two data stream transmission methods are provided in this embodiment. FIG. 1 is a flowchart 1 of a data stream transmission method according to an embodiment of the present invention. As shown in FIG. 1 , the process includes the following steps:

Step S102: The terminal processes the data stream packet to be transmitted, and obtains multiple data stream packets.

Step S104: The terminal simultaneously sends multiple data stream messages in multiple WAN ports on the terminal.

In step S106, the terminal monitors the first response packet corresponding to the data flow message on the multiple WAN ports, and selects an optimal WAN port for transmitting the data flow message according to the speed of the feedback speed of the first response message. .

Through the above steps, the terminal processes the data stream packet to be transmitted, and obtains a plurality of the data stream packet, wherein the data stream packet is a protocol packet with a response packet, and the terminal simultaneously has more information on the terminal. The WAN port of the WAN sends a plurality of the data stream messages, and the terminal monitors the first response message corresponding to the data stream message in the multiple WAN ports, and selects the transmission according to the speed of the feedback of the first response message. The optimal WAN port of the data stream message. The network filtering system of the terminal, netfilter, can copy the data stream message with the response function to be transmitted, and send the copied message to multiple WAN ports until the optimal WAN port is detected, and then stop copying the data stream message. The source data stream message that is not subsequently transmitted is sent at the optimal WAN port. Among them, the fastest WAN port that can respond to the response message can be selected as the optimal WAN port. The above technical solution, while transmitting the data stream message, also selects which WAN port is the optimal WAN port, stops copying after selecting the optimal transmission path, implements soft handover, avoids waiting for the real message, and solves the problem. The WAN port allocated by the data stream of the terminal is not the problem of its optimized path, and the rationality of the WAN port for realizing the data stream allocation of the terminal is realized.

In this embodiment, the optimal WAN port for transmitting the data stream message according to the speed of the feedback of the first response message includes: the optimal WAN port is the feedback of the first response message in the plurality of WAN ports. The fastest WAN port. In the actual selection process, it is possible that the optimal WAN port has a transmission task at this time, and the WAN port with the second fastest feedback speed is selected as the optimal WAN port. Therefore, the optimal WAN port selected in the above embodiment may be based on the feedback speed. A list of items, in the special case, select by order.

In this embodiment, after selecting the optimal WAN port for transmitting the data stream message according to the speed of the feedback speed of the first response message, the terminal stops copying the data stream message, and the data stream message is passed. The optimal WAN port transmission. Before the optimal WAN port is selected, the copied data stream packet is transmitted on all WAN ports, which is a waste of port resources. After selecting the optimal WAN port, the data stream packet of the subsequent part is stopped to be copied. Part of the data stream message is transmitted separately in the optimal WAN port. The data stream packet before the optimal WAN port is selected without repeated transmission. The replication is stopped immediately, and the WAN port except the optimal WAN port is idle. save resources.

In this embodiment, before the data stream packet to be transmitted by the terminal is copied, an entry of the data stream corresponding to the data stream packet is searched in the dynamic routing table, where the dynamic routing table is used by the WAN port and the WAN. The feature information of the data stream corresponding to the port, where the dynamic routing table is used to configure a transmission path of the data stream of the terminal;

If the entry corresponding to the data flow is not found, the data flow message to be transmitted by the terminal is triggered to be complexed. system.

In the case where an entry corresponding to the data stream is found, a transmission path is configured for the data flow according to the routing configuration information of the entry.

Matching in the dynamic routing table before copying, if it matches, directly transmitting the data stream message in the optimal WAN port, the feature information of the data stream includes the quintuple information of the data stream, and the quintuple information includes the following information: Source IP address, source port, destination IP address, destination port, transport layer protocol. When the dynamic routing table is filled in, the characteristic information of the data stream is extracted by the network filtering system netfilter of the terminal.

In this embodiment, after selecting the optimal WAN port for transmitting the data stream message according to the speed of the feedback speed of the first response message, the terminal records the correspondence between the optimal WAN port and the data stream to In the dynamic routing table. For the data stream that is not recorded in the dynamic routing table, when the optimal WAN port is detected, the corresponding relationship is recorded in the dynamic routing table to facilitate the next transmission of the data stream.

In this embodiment, a data stream transmission method is provided. FIG. 2 is a flowchart 2 of a data stream transmission method according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps:

Step S202: The terminal processes the data stream packet to be transmitted, and obtains multiple data stream packets.

Step S204, the terminal sends a detection packet corresponding to the plurality of data stream messages on the WAN ports of the plurality of wide area networks on the terminal;

In step S206, the terminal monitors the second response packet corresponding to the detection packet on the plurality of WAN ports, and selects an optimal WAN port for transmitting the data packet according to the speed of the feedback speed of the second response packet.

Through the above steps, the terminal processes the data stream packet to be transmitted, and obtains a plurality of the data stream packet, where the data stream packet is a protocol packet that does not have a response packet; the terminal is more on the terminal. The WAN port of the WAN sends a detection packet corresponding to the plurality of data stream packets; the terminal monitors the second response packet corresponding to the detection packet in the plurality of WAN ports, according to the feedback of the second response packet The speed of the selection selects the optimal WAN port for transmitting the data message. The network filtering system of the terminal, netfilter, copies the data stream message that does not have a response function, and sends the copied message to multiple WAN ports. Before sending, send a packet for detecting the optimal WAN port. The detection packet has a response function. The detection packet can be a self-compiled packet. The ping packet can be detected in the related art. For example, the second response packet corresponding to the UDP protocol is a Ping detection packet. After the optimal WAN port is detected, the data stream packet is stopped, and the source data stream packet that is not subsequently transmitted is sent at the optimal WAN port. Among them, the fastest WAN port that can respond to the response message can be selected as the optimal WAN port. The above technical solution, while transmitting the data stream message, also selects which WAN port is the optimal WAN port, stops copying after selecting the optimal transmission path, implements soft handover, avoids waiting for the real message, and solves the problem. The WAN port allocated by the data stream of the terminal is not the problem of its optimized path, and the rationality of the WAN port for realizing the data stream allocation of the terminal is realized.

In this embodiment, the method further includes: after the plurality of wide area network WAN ports on the terminal send the detection message corresponding to the plurality of data stream messages, or at the same time, the plurality of wide area network WANs on the terminal The port sends the data stream packet. After sending the detection packet on multiple WAN ports, there is no need to wait for the response packet of the detection packet, and then after sending the replication message. The data stream message avoids the waiting of the message that really needs to be transmitted.

In this embodiment, the optimal WAN port for transmitting the data stream message according to the speed of the feedback of the second response message includes: the optimal WAN port is the feedback of the second response message in the plurality of WAN ports. The fastest WAN port. In the actual selection process, it is possible that the optimal WAN port has a transmission task at this time, and the WAN port with the second fastest feedback speed is selected as the optimal WAN port. Therefore, the optimal WAN port selected in the above embodiment may be based on the feedback speed. A list of items, in the special case, select by order.

In this embodiment, after selecting the optimal WAN port for transmitting the data stream message according to the speed of the feedback speed of the second response message, the terminal stops copying the data stream message, and the data stream message is passed. The optimal WAN port transmission. Before selecting the optimal WAN port, the copied data stream packets are transmitted on all WAN ports, which is a waste of port resources. After selecting the optimal WAN port, the replication can be stopped immediately, and the optimal WAN port will be removed. The external WAN port is free to save resources in time.

If the entry corresponding to the data stream is not found, the data flow message to be transmitted by the terminal is triggered to be copied.

In this embodiment, after selecting the optimal WAN port for transmitting the data stream message according to the speed of the feedback speed of the second response message, the terminal records the correspondence between the optimal WAN port and the data stream to In the dynamic routing table. For the data stream that is not recorded in the dynamic routing table, when the optimal WAN port is detected, the corresponding relationship is recorded in the dynamic routing table to facilitate the next transmission of the data stream.

In this embodiment, the detection packet includes: a Ping detection packet. The detection packet can be a packet compiled by the user or a Ping detection packet in the related technology.

In the present embodiment, two types of data stream transmission devices are also provided, which are applied to the terminal, and the device is used to implement the foregoing embodiments and preferred embodiments, and details are not described herein. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

FIG. 3 is a structural block diagram 1 of a data stream transmission apparatus according to an embodiment of the present invention. As shown in FIG. 3, the apparatus includes:

The first copying module 32 is configured to copy the data stream message to be transmitted to obtain a plurality of the data stream message;

The first sending module 34 is connected to the first copying module 32, and is configured to send a plurality of the data stream messages to the plurality of wide area network WAN ports on the terminal at the same time;

The first monitoring module 36 is connected to the first sending module 34, and is configured to monitor the first response packet corresponding to the data stream packet in the multiple WAN ports, according to the speed of the feedback speed of the first response packet. The optimal WAN port for transmitting the data stream message.

4 is a structural block diagram 2 of a data stream transmission apparatus according to an embodiment of the present invention. As shown in FIG. 4, the apparatus includes:

The second copying module 42 is configured to copy the data stream message to be transmitted to obtain a plurality of the data stream message;

The second sending module 44 is connected to the second copying module 42 and configured to send a second response message corresponding to the plurality of data stream messages on the plurality of wide area network WAN ports on the terminal;

The second monitoring module 46 is connected to the second sending module 44, and is configured to monitor the second response message corresponding to the detection message in the plurality of WAN ports, and select the transmission according to the speed of the feedback of the second response message. The optimal WAN port of the data message.

It should be noted that each of the above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are respectively located. Different processors.

The following is a detailed description in conjunction with the preferred embodiments of the invention.

A preferred embodiment of the present invention proposes a method for automatically selecting a port for a data stream in dual WAN mode. The specific implementation method is as follows: a dynamic routing table is set in the Customer Premise Equipment (CPE), and all dynamic routing data is recorded in the table. The similar form of the table is similar to the dynamic routing table of the general Linux system, and the difference lies in The dynamic routing table is composed of a WAN port and corresponding data stream quintuple information, and the dynamic routing table also has an aging function. FIG. 5 is a schematic diagram of a dynamic routing table, as shown in FIG. 5, in accordance with a preferred embodiment of the present invention.

In a preferred embodiment of the present invention, when a data stream passes through the CPE device, first, an entry for the data flow is found in the dynamic routing table. If the entry of the data flow does not exist in the dynamic routing table, The data stream is copied into two data streams, and the device sends the two data streams simultaneously from the two WAN ports A and B, waiting for the first data packet replied from the two WAN ports (for example, for responding function) For the TCP protocol, the ACK message received in the three-way handshake is equivalent to the response message. If the A WAN port receives the response message first, the CPE stops copying the data packet and the data stream is The corresponding record of the A WAN port is recorded in the previous dynamic routing table. At this time, all the messages following the data flow match the rules of the IP packet filtering system iptables. When these messages pass the netfilter framework, these messages are marked. The special tag is then used to communicate with the external network through the A WAN port when the operating system linux policy is routed. The response packet to the B WAN port is directly discarded. The data table has the same aging function as the Address Resolution Protocol (ARP) table. If there is a new data transmission, the aging time of the entry is updated. If there is no data flow for a long time. Then this entry is aged, when heavy When there is new data, the previous steps are renewed.

6 is a block diagram showing the structure of a data transmission apparatus according to a preferred embodiment of the present invention. As shown in FIG. 6, a total of five modules are respectively referred to as a copy module 62 (corresponding to the first copy module 32 and the second of the above embodiment). The copy module 42 and the functions of the first sending module 34 and the second sending module 44, the listening module 64 (corresponding to the functions of the first listening module 36 and the second listening module 46 of the above embodiment), and the dynamic routing table module 66 The firewall module 68 and the advanced policy routing module 610. The copy module 62 is responsible for copying all the data streams not recorded in the dynamic routing table by using the netfilter framework, and transmitting the data packets from multiple ports. The listening module 64 is responsible for listening to all WAN ports, and the netfilter's hook function fetches corresponding (based on quintuple information) response packets of the data stream. The dynamic routing table module 66 is responsible for recording the quintuple information of the data stream and the WAN port of the first response, and recording them one by one. The firewall mangle module 68 is responsible for marking all data streams that have been recorded in the dynamic routing table. The advanced policy routing module 610 performs policy allocation according to the marking of the firewall module and combining the corresponding information in the dynamic routing table to the data stream marked with a specific label.

7 is a flow chart of a data transmission method according to a preferred embodiment of the present invention. As shown in FIG. 7, the steps are as follows:

S701, the CPE first turns on the dual WAN port function.

S702: The CPE captures the packet of each data stream transmitted from the LAN port to the WAN port by using the hook function of the netfilter framework, and extracts the quintuple information of the data stream.

S703: Search for an entry in the self-built dynamic routing table, if it is found, proceed to S706, and if not, perform S704.

S704: The netfilter framework copies the passed data stream message and sends it out from the two wan ports at the same time. For a protocol packet with a response, such as the TCP protocol, the protocol packet is directly copied. For a protocol packet that does not have a response, such as the UDP protocol, a ping detection packet is added before the transmission.

S705, the linux firewall module monitors the dual wan port at the same time, the first feedback data packet will be recorded. For the TCP protocol, the ACK packet is used as the feedback data packet, and the UDP protocol is based on the first response. The ping packet is used as a feedback data packet. And the relationship corresponding to the wan port is recorded in the self-built dynamic routing table. The packet of another wan port is discarded, and the copying of the packet is stopped.

S706, according to the dynamic routing entry, using the meshel chain function of the netfilter to perform labeling work on all the packets passing the CPE.

S707: Perform advanced policy routing configuration according to the label configured by the netfilter rule.

In the related art, mainly according to the implementation of Linux, such as randomly allocating bandwidth or ping detection, directly pinging the IP address of 8.8.8.8 directly from two WAN ports to select a route, but in practical applications, such a choice is not Very precise, for example, if the access address of this data stream is completely different from the fixed IP address of 8.8.8.8, it is impossible to select a WAN port of the stream that is really adapted, or even a diametrically opposite port. The delay or packet loss rate of this stream increases, reducing the user experience. Moreover, the selection of such a stream does not have real-time dynamics, and is completely fixed routing. Even if the ping detection is repeated every once in a while, only a certain route or a certain piece can be selected. A route with a good network condition is considered as the default route. Secondly, for ping detection, it is not real-time. The packet must wait for the ping detection to complete before the route distribution data is sent. Therefore, the experience is very bad for the user.

The device of the preferred embodiment of the present invention can control the WAN port of each stream according to the quintuple information of any one stream transmitted by the CPE on the local area network (LAN) side, and accurately configure the advanced policy routing. Preferred embodiments of the present invention are directed to the advantages of some of the technical patents of the related art.

The advantage of the label under the netfilter framework in combination with the advanced policy routing allocation in the preferred embodiment of the present invention is that it can more accurately track the transmission of each stream, and select each unique data transmission for each data stream, so that for each data Flow is an optimized path that increases user experience.

A simple ping probe using the Internet Protocol Message Protocol (ICMP) protocol in the related art: the ping probe sends a ping packet before the data transmission, and the real data packet is Wait until the ping detection message is responded to actually allocate the WAN port for data packet transmission. The preferred embodiment of the present invention belongs to a special soft handover, and performs data transmission at the same time. Since there is no need to wait in the device, the transmission message does not occupy the memory of the CPE, and is more in line with the transmission control protocol/Internet interconnection protocol. (Transmission Control Protocol/Internet Protocol, abbreviated as TCP/IP) protocol. It can improve the quality of data transmission and increase user experience.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

Embodiments of the present invention also provide a storage medium. Optionally, in the embodiment, the foregoing storage medium may be configured to store program code for performing the following steps:

S1. The terminal copies the data stream packet to be transmitted, and obtains multiple data stream packets.

S2, the terminal simultaneously sends multiple data stream messages in multiple WAN ports on the terminal;

S3: The terminal monitors the first response packet corresponding to the data flow packet on the multiple WAN ports, and selects an optimal WAN port for transmitting the data flow message according to the speed of the feedback of the first response message.

Optionally, the storage medium is further arranged to store program code for performing the method steps of the above-described embodiments:

Optionally, in this embodiment, the foregoing storage medium may include, but not limited to, a USB flash drive, a Read-Only Memory (ROM), a Random Access Memory (RAM), a mobile hard disk, and a magnetic memory. A variety of media that can store program code, such as a disc or a disc.

Optionally, in this embodiment, the processor performs the method steps of the foregoing embodiments according to the stored program code in the storage medium.

For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Industrial applicability

Claims

A data stream transmission method includes:

The terminal processes the data stream packet to be transmitted, and obtains the plurality of the data stream packet;

Transmitting, by the terminal, a plurality of the data stream messages on a plurality of wide area network WAN ports on the terminal;

The terminal monitors, in the multiple WAN ports, the first response packet corresponding to the data flow packet, and selects the optimal transmission of the data flow packet according to the fast feedback speed of the first response packet. WAN port.
The method of claim 1 wherein

The optimal WAN port is the fastest WAN port in the plurality of WAN ports that feeds back the first response message.
The method of claim 1, wherein the method further comprises: after selecting an optimal WAN port for transmitting the data stream message according to a speed of the feedback speed of the first response message, the method further comprising:

The terminal stops copying the data flow packet, and transmits the data flow packet through the optimal WAN port.
The method according to claim 1, wherein before the data stream message to be transmitted by the terminal is copied, the method includes:

Querying, in the dynamic routing table, an entry of the data flow corresponding to the data flow packet, where the dynamic routing table is composed of a WAN port and characteristic information of a data flow corresponding to the WAN port;

If the entry corresponding to the data flow is not found, the data flow message to be transmitted by the terminal is triggered to be copied.
The method according to claim 4, wherein before the data stream message to be transmitted by the terminal is copied, the method includes:

When an entry corresponding to the data flow is found in the dynamic routing table, a transmission path is configured for the data flow according to the routing configuration information of the entry.
The method according to any one of claims 1 to 3, after selecting the optimal WAN port for transmitting the data stream message according to the speed of the feedback speed of the first response message, the method further includes:

The terminal records the correspondence between the optimal WAN port and the data stream into a dynamic routing table.
A data stream transmission method includes:

The terminal processes the data stream packet to be transmitted, and obtains the plurality of the data stream packet;

Transmitting, by the terminal, the detection packet corresponding to the plurality of the data flow packets on the WAN port of the plurality of wide area networks on the terminal;

The terminal monitors the second response packet corresponding to the detection packet on the multiple WAN ports, and selects an optimal WAN port for transmitting the data packet according to the speed of the feedback speed of the second response packet. .
The method of claim 7 wherein the method further comprises:

After the plurality of wide area network WAN ports on the terminal send the detection packets corresponding to the plurality of the data stream messages, the terminal sends the data flow report on the WAN ports of the plurality of wide area networks on the terminal. Text.
The method of claim 7 wherein

The optimal WAN port is the fastest WAN port in the plurality of WAN ports that feeds back the second response message.
The method of claim 7, wherein the method further comprises: after selecting an optimal WAN port for transmitting the data stream message according to a speed of the feedback speed of the second response message, the method further comprising:

The terminal stops copying the data flow packet, and transmits the data flow packet through the optimal WAN port.
The method according to claim 7, wherein before the data stream message to be transmitted by the terminal is copied, the method includes:

Querying, in the dynamic routing table, an entry of the data flow corresponding to the data flow message, where the dynamic routing table is composed of a WAN port and feature information of a data flow corresponding to the WAN port, where the dynamic routing table is used. Configuring a transmission path of the data stream of the terminal;

If the entry corresponding to the data flow is not found, the data flow message to be transmitted by the terminal is triggered to be copied.
The method according to claim 11, wherein before the data stream message to be transmitted by the terminal is copied, the method includes:

When an entry corresponding to the data flow is found in the dynamic routing table, a transmission path is configured for the data flow according to the routing configuration information of the entry.
The method according to any one of claims 7 to 10, after selecting the optimal WAN port for transmitting the data stream message according to the speed of the feedback speed of the second response message, the method further includes:

The terminal records the correspondence between the optimal WAN port and the data stream into a dynamic routing table.
The method of claim 7, wherein the detecting the message comprises:

Ping detection packets.
A data stream transmission device is applied to a terminal, including:

a first copy module, configured to copy a data stream message to be transmitted, to obtain a plurality of the data stream messages;

a first sending module, configured to send, by the terminal, a plurality of the data stream messages at a plurality of wide area network WAN ports on the terminal;

The first monitoring module is configured to monitor the first response message corresponding to the data flow message on the plurality of WAN ports, and select to transmit the data flow report according to the speed of the feedback speed of the first response message The optimal WAN port of the text.
A data stream transmission device is applied to a terminal, including:

a second copy module, configured to copy the data stream message to be transmitted, to obtain a plurality of the data stream messages;

a second sending module, configured to send, by using a plurality of wide area network WAN ports on the terminal, detection packets corresponding to the plurality of data flow packets;

The second monitoring module is configured to monitor, in the multiple WAN ports, a second response packet corresponding to the detection packet, and select, according to a speed of the feedback speed of the second response packet, to transmit the data packet. The optimal WAN port.