CN104821909A - Peer-to-peer data transmission method and system - Google Patents
Peer-to-peer data transmission method and system Download PDFInfo
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- CN104821909A CN104821909A CN201510193250.6A CN201510193250A CN104821909A CN 104821909 A CN104821909 A CN 104821909A CN 201510193250 A CN201510193250 A CN 201510193250A CN 104821909 A CN104821909 A CN 104821909A
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Abstract
The invention discloses a peer-to-peer data transmission method and system. A first communication terminal and a second communication terminal carry out communication authentication services of an instant messaging server; the second terminal transmits a receiving message to the first terminal through the instant messaging server, the instant messaging server transmits a request for establishing a data session to a data transit server when receiving the receiving message from the second terminal, and the transit server stores identification information on the first and second terminals in the request for establishing the data session to a session mapping table; and the transit server transmits a data input UDP port and a data output UDP port to the instant messaging server which then transmits to the first and second terminals. According to the invention, the transit server maintains a session mapping table at an application layer to determine that the transmitted data which are finally routed into destination addresses will not occupy too much UDP port resources, the occupied UDP port resources are significantly reduced and the resources are saved.
Description
Technical field
The present invention relates to the relevant data transmission method of a kind of instant messaging and system, be specifically related to a kind of end-to-end data transmission method and system.
Background technology
End-to-end (P2P, peer to peer) data communication of instant messaging between terminal, also claim P2P tr first terminal vers first terminal l, p2p penetrates, end to end communication both sides may be in respective fire compartment wall, need a kind of mechanism setting up the data channel of both sides.
Under prior art, end-to-end instant messaging (IM) exchange messages and data general framework as shown in Figure 1, instant messaging (IM) exchange messages and the general framework of data as follows:
The both sides of P2P communication are generally in respective fire compartment wall, and the main frames of two communications can not directly be connected usually, need certain certain mechanism of penetrating.For the transmission of messages that the data volumes such as word message are little, communicating pair directly can be set up tcp with instant communication server and be connected, and instant communication server is as the server of a transfer.
For the data that the data volumes such as real-time audio and video are large, tcp connection is also improper, generally with UDP(UDP User D first terminal t first terminal gr first terminal m Protocol) transmit, need auxiliary transfer server (rel first terminal y server).There are some fairly perfect solutions now, such as rfc5766, Tr first terminal vers first terminal l Using Rel first terminal ys first terminal round N first terminal T (TURN).
Existing TURN mode has following shortcoming:
1. data relay Service-Port takies greatly, to the main frame of each communication, needs distribution udp port
2. whole protocol definition is complicated, transfer server and instant communication server separate, need to go to safeguard contacting between transfer server and instant communication server in the different agreement of client.
3., when the port of any one data channel changes, client needs to coordinate agreement to re-establish whole data channel
Existing TURN penetrates the transmission being applicable to big data quantity, the transmission of such as real-time audio and video.Application for a small amount of or intermediate data scale seems too complicated, and improper, the sensing data transmission of such as 1 second several second terminal yte.
Therefore, prior art existing defects, needs further improvement and development.
Summary of the invention
The object of this invention is to provide a kind of end-to-end data transmission method and system, make system more simple possible, to support the transmission of small data quantity or intermediate data amount better.
To achieve these goals, the present invention adopts following technical scheme:
End-to-end data transmission method, is applicable to carry out instant messaging between first terminal and the second terminal, arranges instant communication server and transfer server between described first terminal and the second terminal, wherein,
The communication certification that first communicating terminal and the second communicating terminal carry out instant communication server is led to; After news certification is passed through, described second terminal is sent and received messages to first terminal by instant communication server, instant communication server is when receiving the receipt message of the second terminal, send to data relay server the request of data session of setting up, transfer server by the identification information storage of the first terminal set up in the request of data session and the second terminal to session mapping table;
Described transfer server data is inputted udp port and data output udp port sends to instant communication server, sends to described first terminal and the second terminal by instant communication server;
First terminal and the second terminal are first by the session establishment data channel of transfer server, and data channel after transfer server receives data, by inquiry session mapping table, is determined the destination interface of current transmission, finally realized exchanges data after setting up.
Described end-to-end data transmission method, wherein, the communication certification that the first communicating terminal and the second communicating terminal carry out instant communication server specifically comprises:
First communicating terminal sends data exchange request by instant message server to the second communication, and the second terminal sends confirmation request by instant communication server to first terminal.
Described end-to-end data transmission method, wherein, first first terminal and the second terminal are comprised by the step of the session establishment data channel of transfer server:
First terminal sets up the first udp port, and the second terminal sets up the second udp port, and sends out authentication request by respective udp port to the data input udp port that transfer server is known;
Transfer server obtains the first udp port and second udp port of first terminal and the second terminal, the respective udp port of first terminal and the second terminal is stored into session mapping table, and sets up store session ID;
Session id is also returned to first terminal and the second terminal by described transfer server, and after described first terminal and the second terminal all obtain session id, data channel has been set up.
Described end-to-end data transmission method, wherein, described transfer server by the identification information of the first terminal and the second terminal of checking session mapping table or first terminal, the respective udp port information of the second terminal, and session id is returned to described first terminal and the second terminal.
Described end-to-end data transmission method, wherein, when described first terminal or any one section of port of the second terminal change, send message informing transfer server, transfer server is new session mapping table more.
Described end-to-end data transmission method, wherein, described session mapping table comprises a data input udp port and data export udp port.
Described end-to-end data transmission method, wherein, the identification information of described first terminal and the second terminal comprises the IP address of first terminal and the second terminal, MAC Address.
Described end-to-end data transmission method, wherein, the data of transfer server input udp port information and data are exported udp port information by described instant communication server adds in the packet between first terminal and the second terminal.
End-to-end data transmission system, for the instant messaging in first terminal and second between terminal, comprises a first terminal and the second terminal, arranges instant communication server and transfer server, it is characterized in that between described first terminal and the second terminal,
Described transfer server is arranging session mapping table, and described session mapping table stores data input udp port and the data output udp port of transfer server, sets up the list of identification information of session both sides, the udp port information of session both sides and session id;
The communication certification that first communicating terminal and the second communicating terminal carry out instant communication server is led to; After news certification is passed through, described second terminal is sent and received messages to first terminal by instant communication server, instant communication server is when receiving the receipt message of the second terminal, send to data relay server the request of data session of setting up, transfer server by the identification information storage of the first terminal set up in the request of data session and the second terminal to session mapping table;
Described transfer server data is inputted udp port and data output udp port sends to instant communication server, sends to described first terminal and the second terminal by instant communication server;
First first terminal and the second terminal by the session establishment data channel of transfer server, after transfer server receives data, by inquiry session mapping table, are determined the destination interface of current transmission, are finally realized exchanges data.
Described end-to-end data transmission system, wherein, described session mapping table comprises a data input udp port and data export udp port.
The invention provides the end-to-end data transmission method of the present invention and system, transfer server safeguards a kind of session mapping table in application layer, to determine the destination address that the data sent finally are routed, the data input udp port that all data channel use transfer server identical and data export udp port, do not limit by different udp ports, the resource of udp port can not be taken, at most only need a data input udp port and data to export udp port.The present invention also multi-group data can be used to input udp port according to actual conditions and data export udp port, but the resource occupation of udp port obviously reduces, and has saved resource.
Accompanying drawing explanation
Fig. 1 is existing end-to-end data transmission structure schematic diagram;
Fig. 2 is the flow chart of the end-to-end data transmission method of the present invention.
Embodiment
Below in conjunction with preferred embodiment, the present invention is described in further details.
End-to-end data transmission method provided by the invention, be applicable to the first terminal being positioned at the first fire compartment wall, with second carries out instant messaging between the second terminal in fire compartment wall, described first terminal is set up tcp with the second terminal by instant communication server and is connected the little transmission of messages such as data volume of carrying out word message, and described first terminal and the second terminal use udp protocol to carry out the transmission of the large data of the data volumes such as real-time audio and video by transfer server.
The present invention safeguards a kind of session mapping table at described transfer server in application layer, described session mapping table stores a data input udp port and a data output udp port of transfer server, set up the list of identification information of session both sides, the udp port information of session both sides and session id, the data transmission method between described first terminal and the second terminal comprises the steps:
First communicating terminal and the second communicating terminal carry out the communication certification of instant communication server, preferred first communicating terminal sends data exchange request by instant message server to the second communication, and the second terminal sends confirmation request by instant communication server to first terminal.
After the communication certification that first communicating terminal and the second communicating terminal carry out instant communication server is passed through, second terminal is sent and received messages to first terminal by instant communication server, instant communication server is when receiving the receipt message of the second terminal, the request of setting up data session is sent to data relay server, described request of setting up data session comprises the identification information of first terminal and the second terminal, session mapping table described in transfer server initialization, by the identification information storage of first terminal and the second terminal to session mapping table.Described identification information specifies the destination of transfer of data.
Described transfer server data is inputted udp port and data output udp port sends to instant communication server, sends to described first terminal and the second terminal by instant communication server.
The data of transfer server input udp port and data can be exported udp port by described instant communication server to be added in the packet between first terminal and the second terminal.The identification information of described first terminal and the second terminal comprises the IP address, MAC Address etc. of first terminal and the second terminal, does not limit here.
Described first terminal and the second terminal, by sending out the address that message obtains transfer server to instant communication server, comprise transfer server and data are inputted udp port and data output udp port.
When first terminal and the second terminal need to carry out transfer of data by transfer server, first terminal and the second terminal are first by the session establishment data channel of transfer server, preferred first terminal, second terminal sets up respective UDP port for exchanges data, such as first terminal sets up the first udp port, second terminal sets up the second udp port, and sends out authentication request by respective udp port to the data input udp port that transfer server is known.Transfer server obtains the first udp port and second udp port of first terminal and the second terminal, the respective udp port of first terminal and the second terminal is stored into session mapping table, and sets up store session ID.
Described transfer server by the identification information of the first terminal and the second terminal of checking session mapping table or first terminal, the respective udp port information of the second terminal, and session id is returned to first terminal and the second terminal;
After described first terminal and the second terminal all obtain session id, data channel has been set up, first terminal, and the second terminal can by the data input udp port transmission data of respective udp port to transfer server.
After transfer server receives data, by inquiry session mapping table, namely by the identification information of data receiving terminal in inquiry session mapping table, determine the destination interface of current transmission, finally realize exchanges data.
When first terminal or any one section of port of the second terminal change, send message informing transfer server, transfer server is new session mapping table more, can complete the quick foundation of data channel rapidly.
The data transmission method that the present invention is end-to-end, after transfer server receives data, by inquiry session mapping table, determine the destination interface of current transmission, finally realize exchanges data, first terminal, when any one section of port of second terminal changes, send message informing transfer server, transfer server is new session mapping table more, can complete the quick foundation of data channel rapidly.
Transfer server of the present invention safeguards a kind of session mapping table in application layer, to determine the destination address that the data sent finally are routed, the data input udp port that all data channel use transfer server identical and data export udp port, do not limit by different udp ports, the resource of udp port can not be taken, at most only need a data input udp port and data to export udp port.The present invention also multi-group data can be used to input udp port according to actual conditions and data export udp port, but the resource occupation of udp port obviously reduces, and has saved resource.
The transfer server of the data transmission method that the present invention is end-to-end and instant communication server closely merge, complexity is put into service end, greatly reduce the design of client when FPDP changes, can send independent message to transfer server, transfer server upgrades in time session mapping table.This method penetrates for the TURN of standard and improves, design the Data Transport Protocol of more simple possible, to support the transmission of small data quantity or intermediate data amount better, be applicable to for the lower data stream transmitting of load, can the design complexities of mitigation system and the use of resource greatly.
End-to-end data transmission system provided by the invention, for the instant messaging in first terminal and second between terminal, comprises the first terminal being positioned at the first fire compartment wall, and the second terminal in the second fire compartment wall.Instant communication server and transfer server are set between described first terminal and the second terminal.
The present invention arranges session mapping table at described transfer server in application layer, described session mapping table stores data input udp port and the data output udp port of transfer server, set up the list of identification information of session both sides, the udp port information of session both sides and session id.
First communicating terminal and the second communicating terminal carry out the communication certification of instant communication server, preferably described first communicating terminal sends data exchange request by instant message server to the second communication, and the second terminal sends confirmation request by instant communication server to first terminal.
After the communication certification that first communicating terminal and the second communicating terminal carry out instant communication server is passed through, second terminal is sent and received messages to first terminal by instant communication server, instant communication server is when receiving the receipt message of the second terminal, the request of setting up data session is sent to data relay server, described request of setting up data session comprises the identification information of first terminal and the second terminal, session mapping table described in transfer server initialization, by the identification information storage of first terminal and the second terminal to session mapping table.Described identification information specifies the destination of transfer of data.
Described transfer server data is inputted udp port and data output udp port sends to instant communication server, sends to described first terminal and the second terminal by instant communication server.
The data of transfer server input udp port and data can be exported udp port by described instant communication server to be added in the packet between first terminal and the second terminal.The identification information of described first terminal and the second terminal comprises the IP address, MAC Address etc. of first terminal and the second terminal, does not limit here.
Described first terminal and the second terminal, by sending out the address that message obtains transfer server to instant communication server, comprise transfer server and data are inputted udp port and data output udp port.
When first terminal and the second terminal need to carry out transfer of data by transfer server, first terminal and the second terminal are first by the session establishment data channel of transfer server, preferred first terminal, second terminal sets up respective UDP port for exchanges data, such as first terminal sets up the first udp port, second terminal sets up the second udp port, and sends out authentication request by respective udp port to the data input udp port that transfer server is known.Transfer server obtains the first udp port and second udp port of first terminal and the second terminal, the respective udp port of first terminal and the second terminal is stored into session mapping table, and sets up store session ID.
Described transfer server by the identification information of the first terminal and the second terminal of checking session mapping table or first terminal, the respective udp port information of the second terminal, and session id is returned to first terminal and the second terminal;
After described first terminal and the second terminal all obtain session id, data channel has been set up, first terminal, and the second terminal can by the data input udp port transmission data of respective udp port to transfer server.
After transfer server receives data, by inquiry session mapping table, namely by the identification information of data receiving terminal in inquiry session mapping table, determine the destination interface of current transmission, finally realize exchanges data.
Above content is the explanation to preferred embodiment of the present invention, and those skilled in the art can be helped to understand technical scheme of the present invention more fully.But these embodiments only illustrate, can not assert that the specific embodiment of the present invention is only limitted to the explanation of these embodiments.
Claims (10)
1. end-to-end data transmission method, is applicable to carry out instant messaging between first terminal and the second terminal, arranges instant communication server and transfer server, it is characterized in that between described first terminal and the second terminal,
The communication certification that first communicating terminal and the second communicating terminal carry out instant communication server is led to; After news certification is passed through, described second terminal is sent and received messages to first terminal by instant communication server, instant communication server is when receiving the receipt message of the second terminal, send to data relay server the request of data session of setting up, transfer server by the identification information storage of the first terminal set up in the request of data session and the second terminal to session mapping table;
Described transfer server data is inputted udp port and data output udp port sends to instant communication server, sends to described first terminal and the second terminal by instant communication server;
First terminal and the second terminal are first by the session establishment data channel of transfer server, and data channel after transfer server receives data, by inquiry session mapping table, determines that the destination interface of current transmission realizes exchanges data after setting up.
2. end-to-end data transmission method according to claim 1, is characterized in that, the communication certification that the first communicating terminal and the second communicating terminal carry out instant communication server specifically comprises:
First communicating terminal sends data exchange request by instant message server to the second communication, and the second terminal sends confirmation request by instant communication server to first terminal.
3. end-to-end data transmission method according to claim 1, is characterized in that, first first terminal and the second terminal are comprised by the step of the session establishment data channel of transfer server:
First terminal sets up the first udp port, and the second terminal sets up the second udp port, and sends out authentication request by respective udp port to the data input udp port that transfer server is known;
Transfer server obtains the first udp port and second udp port of first terminal and the second terminal, the respective udp port of first terminal and the second terminal is stored into session mapping table, and sets up store session ID;
Session id is also returned to first terminal and the second terminal by described transfer server, and after described first terminal and the second terminal all obtain session id, data channel has been set up.
4. end-to-end data transmission method according to claim 3, it is characterized in that, described transfer server is by the identification information of the first terminal and the second terminal of checking session mapping table or first terminal, the respective udp port information of the second terminal, and session id is returned to described first terminal and the second terminal.
5. end-to-end data transmission method according to claim 1, is characterized in that, when described first terminal or any one section of port of the second terminal change, send message informing transfer server, transfer server is new session mapping table more.
6. end-to-end data transmission method according to claim 1, is characterized in that, described session mapping table comprises a data input udp port and data export udp port.
7. end-to-end data transmission method according to claim 1, is characterized in that, the identification information of described first terminal and the second terminal comprises the IP address of first terminal and the second terminal, MAC Address.
8. end-to-end data transmission method according to claim 1, it is characterized in that, the data of transfer server input udp port information and data are exported udp port information by described instant communication server adds in the packet between first terminal and the second terminal.
9. end-to-end data transmission system, for the instant messaging in first terminal and second between terminal, comprises first terminal and the second terminal, arranges instant communication server and transfer server, it is characterized in that between described first terminal and the second terminal,
Described transfer server is arranging session mapping table, and described session mapping table stores data input udp port and the data output udp port of transfer server, sets up the list of identification information of session both sides, the udp port information of session both sides and session id;
The communication certification that first communicating terminal and the second communicating terminal carry out instant communication server is led to; After news certification is passed through, described second terminal is sent and received messages to first terminal by instant communication server, instant communication server is when receiving the receipt message of the second terminal, send to data relay server the request of data session of setting up, transfer server by the identification information storage of the first terminal set up in the request of data session and the second terminal to session mapping table;
Described transfer server data is inputted udp port and data output udp port sends to instant communication server, sends to described first terminal and the second terminal by instant communication server;
First first terminal and the second terminal by the session establishment data channel of transfer server, after transfer server receives data, by inquiry session mapping table, determine that the destination interface of current transmission realizes exchanges data.
10. end-to-end data transmission system according to claim 9, is characterized in that, described session mapping table comprises a data input udp port and data export udp port.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510193250.6A CN104821909B (en) | 2015-04-22 | 2015-04-22 | End-to-end data transmission method and system |
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| CN201510193250.6A CN104821909B (en) | 2015-04-22 | 2015-04-22 | End-to-end data transmission method and system |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108173928A (en) * | 2017-12-26 | 2018-06-15 | 北京百度网讯科技有限公司 | Method, apparatus, storage medium and the terminal device of UDP message transmission |
| CN108494757A (en) * | 2018-03-14 | 2018-09-04 | 武汉大学 | A kind of router concealed communication method based on OpenWrt systems |
| CN108696772A (en) * | 2017-04-11 | 2018-10-23 | 上海谦问万答吧云计算科技有限公司 | A kind of transmission method and device of real-time video |
| CN109688038A (en) * | 2017-10-18 | 2019-04-26 | 中国移动通信有限公司研究院 | Non-IP transmission method and device, equipment, storage medium end to end |
| CN111092805A (en) * | 2019-12-17 | 2020-05-01 | 北京众享比特科技有限公司 | Instant messaging method, device, equipment and medium based on DHT network |
| CN111343083A (en) * | 2020-05-22 | 2020-06-26 | 支付宝(杭州)信息技术有限公司 | Instant messaging method, instant messaging device, electronic equipment and readable storage medium |
| CN112770072A (en) * | 2020-12-30 | 2021-05-07 | 北京北信源软件股份有限公司 | Data transmission method, device and storage medium |
| CN112866091A (en) * | 2021-01-21 | 2021-05-28 | 即时匹配(上海)网络科技有限公司 | Instant communication system and communication method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005117587A (en) * | 2003-10-10 | 2005-04-28 | Newrong Inc | Communication method |
| US20060020708A1 (en) * | 2004-06-30 | 2006-01-26 | Wen-Tai Hsieh | System and method for peer-to-peer communication |
| CN101977178A (en) * | 2010-08-09 | 2011-02-16 | 中兴通讯股份有限公司 | Relay-based media channel establishing method and system |
-
2015
- 2015-04-22 CN CN201510193250.6A patent/CN104821909B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005117587A (en) * | 2003-10-10 | 2005-04-28 | Newrong Inc | Communication method |
| US20060020708A1 (en) * | 2004-06-30 | 2006-01-26 | Wen-Tai Hsieh | System and method for peer-to-peer communication |
| CN101977178A (en) * | 2010-08-09 | 2011-02-16 | 中兴通讯股份有限公司 | Relay-based media channel establishing method and system |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108696772A (en) * | 2017-04-11 | 2018-10-23 | 上海谦问万答吧云计算科技有限公司 | A kind of transmission method and device of real-time video |
| CN108696772B (en) * | 2017-04-11 | 2021-07-16 | 苏州谦问万答吧教育科技有限公司 | Real-time video transmission method and device |
| CN109688038A (en) * | 2017-10-18 | 2019-04-26 | 中国移动通信有限公司研究院 | Non-IP transmission method and device, equipment, storage medium end to end |
| CN108173928A (en) * | 2017-12-26 | 2018-06-15 | 北京百度网讯科技有限公司 | Method, apparatus, storage medium and the terminal device of UDP message transmission |
| CN108173928B (en) * | 2017-12-26 | 2019-02-05 | 北京百度网讯科技有限公司 | Method, apparatus, storage medium and the terminal device of UDP message transmission |
| CN108494757A (en) * | 2018-03-14 | 2018-09-04 | 武汉大学 | A kind of router concealed communication method based on OpenWrt systems |
| CN111092805A (en) * | 2019-12-17 | 2020-05-01 | 北京众享比特科技有限公司 | Instant messaging method, device, equipment and medium based on DHT network |
| CN111343083A (en) * | 2020-05-22 | 2020-06-26 | 支付宝(杭州)信息技术有限公司 | Instant messaging method, instant messaging device, electronic equipment and readable storage medium |
| CN111343083B (en) * | 2020-05-22 | 2020-08-11 | 支付宝(杭州)信息技术有限公司 | Instant messaging method, instant messaging device, electronic equipment and readable storage medium |
| CN112770072A (en) * | 2020-12-30 | 2021-05-07 | 北京北信源软件股份有限公司 | Data transmission method, device and storage medium |
| CN112770072B (en) * | 2020-12-30 | 2022-12-02 | 北京北信源软件股份有限公司 | Data transmission method, device and storage medium |
| CN112866091A (en) * | 2021-01-21 | 2021-05-28 | 即时匹配(上海)网络科技有限公司 | Instant communication system and communication method |
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|---|---|
| CN104821909B (en) | 2018-02-06 |
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