CN101262452A - Network connection control method and control device and routing device - Google Patents
Network connection control method and control device and routing device Download PDFInfo
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- CN101262452A CN101262452A CNA2008100938863A CN200810093886A CN101262452A CN 101262452 A CN101262452 A CN 101262452A CN A2008100938863 A CNA2008100938863 A CN A2008100938863A CN 200810093886 A CN200810093886 A CN 200810093886A CN 101262452 A CN101262452 A CN 101262452A
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Abstract
The invention discloses a network connection control method and a control device applicable to providing a route device of data routing-transfer for both parties between which a network connection is established. The method comprises the steps of monitoring exchange message sent by the two connected parties, recording information of the newest exchange message monitored, and after monitoring the newest exchange message and when no new exchange message is monitored at preset first time, disconnecting network by sending suspension message to the two connected parties. The network connection is of TCP type in a better embodiment. The method and the device provided by the invention effectively save network resources and ensure subsequent establishment of network connection.
Description
Technical field
The present invention relates to communication technical field, relate in particular to control method and control device that a kind of network connects, also relate to a kind of routing device.
Background technology
Development along with Internet technology, increasing people pass through big and small network in daily work and life, realize the interchange of information based on various Internet protocols (IP), such as TCP (Transmission Control Protocol, transmission control protocol), UDP (User DatagramProtocol, User Datagram Protoco (UDP)) etc.Though some agreements such as UDP are connectionless, its information exchange by preceding transmit leg of transmission data and recipient realizes that both sides are synchronous; But also have some agreements, such as TCP, the network that need set up between transmit leg and the recipient before the transmission data connects, and connect by this network and to carry out data and send, need realize by means of transmit leg or recipient's active hang up disconnecting because this network often connects, this have just brought the occupation problem of Internet resources.
With TCP is example, please in conjunction with Fig. 1, shown and established the typical networking schematic diagram that network connects: client and server/work station is set up TCP by routing device and is connected, may exist so for a long time in the scope, do not have data interaction between client and server/work station, but TCP connects situation about always keeping.
For instance, in the network of some banks, may exist a station terminal to sign in to the situation that server does not just have operation later on from morning, the TCP between terminal and the server connects and will keep always so;
Say for another example, when the situation of abort TCP connection appears in a side who establishes the TCP connection, if the opposing party who connects as TCP does not possess the mechanism of surveying the opposite end survival, can only stop the transmission of the opposing party's follow-up data stream so by routing device, but the Socket socket that connects both sides is not closed, and just bipartite TCP connection in fact still exists.
For server/work station, above-mentioned situation appears if set up the client that TCP is connected with it, and that has caused taking of Internet resources undoubtedly.
Summary of the invention
Embodiments of the invention aim to provide the technical scheme that can Control Network connects, thereby save Internet resources effectively.
For achieving the above object, the control method that embodiments of the invention provide a kind of network to connect is applicable to the routing device that the data routing forwarding is provided for the both sides that set up this network connection, may further comprise the steps:
S1, the mutual message that this connection both sides are sent are monitored, and are write down the information of the up-to-date mutual message that monitors;
S2, after this up-to-date mutual message that monitors, when arriving the default very first time when not monitoring new mutual message, disconnect this network connection by end message to the two-way transmission of this connections both sides.
The control device that embodiments of the invention also provide a kind of network to connect, the both sides that are applied in to setting up described network connection provide on the routing device of data routing forwarding, comprise: mutual monitoring messages module is used for the mutual message that connects both sides' transmission is monitored; The message information logging modle is connected with this mutual monitoring messages module, is used to write down the information of the up-to-date mutual message that monitors; First detection module is connected with the message information logging modle with this mutual monitoring messages module, is used for not monitoring under the situation of new mutual message in the default very first time of arrival, and trigger network connects the disconnection module; Network connects the disconnection module, is used to receive the triggering of this first detection module, disconnects this network connection to connecting the two-way transmission termination of both sides message.
Embodiments of the invention also provide a kind of routing device, are provided with the control device that above-mentioned network connects.
As shown from the above technical solution, embodiments of the invention connect by intervene network on routing device, adopt to disconnect the scheme that network connects when overtime, have following beneficial effect:
1, Internet resources have effectively been saved;
2, guaranteed the subsequent network establishment of connection.
With reference to the accompanying drawing description of a preferred embodiment, above-mentioned and other purpose of the present invention, feature and advantage will be more obvious by following.
Description of drawings
Fig. 1 establishes the typical networking schematic diagram that network connects;
Fig. 2 is the schematic diagram of the control method applied environment of network connection provided by the invention;
Fig. 3 is the flow chart of control method one embodiment of network connection provided by the invention;
Fig. 4 A, 4B are respectively the form schematic diagram of IP heading and TCP heading;
When connecting for TCP, Fig. 5 disconnects the flow chart of the embodiment of network connection;
When Fig. 6 connects for TCP, the schematic flow sheet of method one specific embodiment shown in Figure 3;
Fig. 7 is the flow chart of another embodiment of control method of network connection provided by the invention;
Fig. 8 is the schematic flow sheet of method one specific embodiment shown in Figure 7;
Fig. 9 is the block diagram of control device one embodiment of network connection provided by the invention;
Figure 10 is the block diagram of another embodiment of control device of network connection provided by the invention;
Figure 11 is the control device that connects of the network provided by the invention block diagram of an embodiment again;
Figure 12 is that network connects the block diagram that disconnects module one embodiment in Fig. 9 or Figure 10 or the device shown in Figure 11.
Embodiment
To describe specific embodiments of the invention in detail below.Should be noted that the embodiments described herein only is used to illustrate, be not limited to the present invention.
Please in conjunction with Fig. 2, shown that the network equipment sets up the schematic diagram that network connects by routing device, this network connection can be based upon between work station and the work station, can be based upon between the client and server, also can be based upon between switch/router and the application server, connected other application terminal again by switch/router, Fig. 2 only for schematically showing, is not exemplified one by one.Wherein, routing device is used to both sides' the network equipment that route forwarding function is provided.
Control for the validity that under above-mentioned environment network is connected, the control method that embodiments of the invention provide a kind of network to connect as shown in Figure 3, may further comprise the steps:
S1, monitor, and write down the information of the up-to-date mutual message that monitors connecting the mutual message that both sides send;
In general, the information that this step S1 is write down should comprise the transmitting time of the up-to-date mutual message of monitoring, and could guarantee follow-up overtime detection like this; Simultaneously, connect the difference of opening operation according to the network taked, information such as source IP address, purpose IP address or source port, destination interface or sequence number that can the mutual message of respective record, response sequence number are so that carry out the transmission of control command; Certainly, can also write down the information that some may use, as data length etc.Preferable, can adopt the mode of bettering a record to write down the information of this up-to-date mutual message that monitors, write down shared storage resources to save; Certainly, this mode is not a limitation, also can be to all messages that monitor record in addition all, and unified again removing the behind the certain hour.
S2, after the up-to-date mutual message that monitors, when arriving the default very first time when not monitoring new mutual message, by ending message and disconnect network and connect to connecting the two-way transmission of both sides;
Certainly, if monitor new mutual message, need so new mutual message information is write down and picks up counting again.
As can be seen, the execution of above-mentioned steps S1～S2, can close the network connection that does not have mutual message transmissions above the very first time effectively, in other words, technique scheme has been supported the timeout feature of mourning in silence that network connects, and last data that connects transmission from network pick up counting, and disconnects connecting when surpassing the default very first time, thereby effectively save the network connection resource, ensure the carrying out that follow-up network connects.
This technical scheme is applicable to following scene: connect though effectively close the normal overtime obsolete network of both sides' state; The normal network of the opposing party connects because failure and other reasons is closed unusually effectively to close a side; Sent the connection open command though effectively close a side, the opposing party does not have normal the response with the network that disconnects to be connected.Because this technical scheme is to end the transmission of message by means of routing device,, be normally closing of connecting therefore from establishing the both sides or the folk prescription network equipment that network connects, need not extra the execution and connect the emergency operation that disconnects.
It is that TCP connects that comparatively common network connects, its message form mainly is " an IP heading+TCP heading+data ", is exactly " IP heading+TCP heading " if do not carry data certainly, wherein, the form of IP heading is shown in Fig. 4 A, and the form of TCP heading is shown in Fig. 4 B.
It is pointed out that in the TCP heading Flags field comprises URG position, ACK position, PSH position, RST position, SYN position and FIN position.Wherein, the PSH position puts 1 when message carries data, and ACK position and RST position are in the situation underlying 1 of RESET message, and the SYN position puts 1 when initial request message, and the FIN position then is that network connection both sides carry out putting 1 when three-way handshake is closed the network connection.
Be connected to TCP with network and be connected to example,, therefore,, can carry out socket by structure RESET message so and close and realize if want normally to close the both sides that network connects because TCP is based on the socket socket.
Concrete, by sending RESET message disconnection TCP step of connecting respectively as shown in Figure 5, can comprise to connecting both sides:
C1, according to the information of the up-to-date mutual message that monitors, construct TCP RESET message respectively;
C2, respectively this TCP RESET message is sent to corresponding connection side, its socket socket is closed, thereby realize that in the mode of normally closing the connection of both direction disconnects, and discharges the TCP connection resource.
As a specific embodiment,, shown that routing device A finishes the schematic diagram that tcp connect timeout is mourned in silence and closed please in conjunction with Fig. 6.
Wherein, message 1 secondary IP address is that the network equipment of 192.168.32.1 (source IP address) sends out; Behind routing device A, be forwarded to the network equipment that the IP address is 192.168.32.2 (purpose IP address) as message 2; In this process, routing device A has write down transmitting time, source IP address, purpose IP address, source port, destination interface, sequence number, response sequence number and the Flags information of mutual message, Flags is 0x10 in the present embodiment, be position, ACK position, sign is not carried the common mutual message of data;
After this, pick up counting, when arriving the default very first time, do not have the mutual of message again between two network equipments based on the transmitting time of this mutual message;
For the connection between the disconnect network devices, what routing device A had constructed that two-way TCP RESET message closes both sides closes the IP address, and Flags is 0x14 sign TCP RESET message, i.e. ACK position and RST position 1 in the present embodiment; Wherein, message 3 sends to the network equipment that the IP address is 192.168.32.1, and its socket socket is closed, and message 4 sends to the network equipment that the IP address is 192.168.32.2, and its socket socket is closed.
Preferable, for the more effectively disconnection of Control Network connection, routing device can provide the keep-alive support simultaneously.Concrete, please in conjunction with Fig. 7, also comprise before the step S2:
A1, after the up-to-date mutual message that monitors, when arriving the second default time when not monitoring new mutual message, two-way the sending to of structural exploration message connects both sides;
Connect the response of both sides if A2 receives, illustrate that then both sides are in the normal activity state, therefore keep network to connect, and carry out the overtime detection of the follow-up very first time described probe messages;
If A3 does not receive either party or only receives wherein a side to the response of described probe messages, then explanation has at least a side fault to occur, this network connects the fact and lost efficacy, and therefore connects by disconnecting network to the two-way transmission termination of connection both sides message, finishes;
Wherein, Yu She second time is less than the default very first time.
Obviously, this programme is particularly useful for a side closes and the normal network connection of the opposing party unusually owing to failure and other reasons, and perhaps two sides can timely more, effective releasing network connection resource because the network that failure and other reasons is closed unusually connects.
It may be noted that when receiving either party, also comprise the step of the transmit leg that response is responded, the sequence number and the response sequence number realization of the probe messages that this response can send out by judgements the response of described probe messages.
Such scheme is under opposite extreme situations, routing device might appear when Xiang Yifang sends probe messages, received an other side's mutual message, routing device does not just need to send to this other side to talk probe messages again like this, but still need continue to respond the transmit leg of response.
As a specific embodiment, please in conjunction with Fig. 8, shown that routing device A finishes TCP and connects the schematic diagram that detection is closed, wherein, Flags is that the 0x18 sign is carried the common mutual message of data, its ACK position and PSH position 1.
Better, people's use for convenience, the control method that network provided by the invention connects can also cooperate manual operations, promptly may further comprise the steps: when receiving manual network connection open command, the two-way transmission termination of the connection both sides message that connects by the network to appointment disconnects described network connection; Wherein, the connection of the network of this appointment can be for one or more.Concrete, the IP address and the port numbers that can connect, the mode of ending message with two-way transmission by the network that input need disconnect, realize an independent connection, perhaps all of an IP connect, the perhaps connection of a network, and perhaps all are by the disconnection of the connection of this routing device.
One of ordinary skill in the art will appreciate that: all or part of step that realizes said method embodiment can be finished by the relevant hardware of program command, described program can be stored in the computer read/write memory medium, this procedural application comprises the steps: when carrying out in the routing device that provides the data routing forwarding for the both sides that set up described network connection
S1, the mutual message that described connection both sides are sent are monitored, and are write down the information of the up-to-date mutual message that monitors;
S2, after the described up-to-date mutual message that monitors, when arriving the default very first time when not monitoring new mutual message, disconnect described network connection by end message to the two-way transmission of described connections both sides.
Described storage medium comprises: ROM/RAM (Read Only Memory/Random-AccessMemory, read-only memory/random-access memory), magnetic disc or CD etc.
Accordingly, the control device 100 that the present invention also provides a kind of network to connect, the both sides that are applied in to setting up described network connection provide on the routing device of data routing forwarding.
Please, shown the block diagram of one embodiment, having comprised in conjunction with Fig. 9:
Mutual monitoring messages module 101 is used for the mutual message that connects both sides' transmission is monitored;
Message information logging modle 102 is connected with mutual monitoring messages module 101, is used to write down the information of the up-to-date mutual message that monitors; Wherein, the information of its record can comprise: one of the transmitting time of the up-to-date mutual message that monitors and source IP address and purpose IP address, source port and destination interface, sequence number and response sequence number or combination in any; Concrete record is provided with according to actual needs by the keeper; Simultaneously, this message information logging modle 102 can adopt the mode of bettering a record to write down the information of the up-to-date mutual message that monitors.
Network connects disconnection module 104, is used to receive the triggering of first detection module 103, connects to connecting the two-way transmission termination of both sides message disconnection network.
As can be seen, said structure can realize that network connects overtime break function of mourning in silence, thereby effectively saves Internet resources.
Preferable, please in conjunction with Figure 10, shown the block diagram of control device 100 another embodiment that network connects.On basis embodiment illustrated in fig. 9, also comprise:
Probe messages processing module 106, be used to receive the triggering of second detection module 105, two-way the sending to of structural exploration message connects both sides, and, identification connects the response of both sides to probe messages, do not receiving either party or only receiving under the situation of a wherein side response, trigger network connects disconnection module 104 and disconnects the networks connection.
It may be noted that this probe messages processing module 106 also comprises the response unit (not shown), be used for responding the transmit leg of described response for the response that receives to described probe messages.
Obviously, introduced after second detection module 105 and the probe messages processing module 106, routing device can provide the keep-alive support simultaneously, can survey some timely and unusual Internet resources occur, helps the further saving of resource; The normal network of the opposing party connects because failure and other reasons is closed unusually to be particularly useful for a side, and perhaps two sides are because the network that failure and other reasons is closed unusually connects.
Better, please in conjunction with Figure 11, shown control device 100 that network the connects block diagram of an embodiment again.On Fig. 9 or basis embodiment illustrated in fig. 10, also comprise:
The instruction module 107 that is used for man-machine interface is used to receive manual network and connects open command, and trigger network connects the network connection that disconnects module 104 disconnection appointments; Wherein, the network of appointment is connected to one or more.
Above-mentioned network connects the manual realization that disconnects, and brings great convenience for user's use.
In the embodiment of above-mentioned Fig. 9～shown in Figure 11, connect bipartite network and connect and to connect for TCP.In the case, as a specific embodiment, as shown in figure 12, network connects disconnection module 104 and can comprise: TCP RESET structural unit 1041, be used for according to triggering, and constructing respectively with both sides IP address is the TCP RESET message of destination address; TCP RESET transmitting element 1042 is connected with TCP RESET structural unit 1041, is used for respectively TCP RESET message being sent to corresponding connection side, and its socket socket is closed.
The present invention also provides a kind of routing device, is provided with the control device 100 that above-mentioned network connects, and is used for carrying out outside route and the data forwarding controlled function that provides network to connect.
Though described the present invention with reference to several exemplary embodiments, should be appreciated that used term is explanation and exemplary and nonrestrictive term.The spirit or the essence that do not break away from invention because the present invention can specifically implement in a variety of forms, so be to be understood that, the foregoing description is not limited to any aforesaid details, and should be in the spirit and scope that claim limited of enclosing explain widely, therefore fall into whole variations in claim or its equivalent scope and remodeling and all should be the claim of enclosing and contain.
Claims (13)
1. the control method that network connects is applicable to the routing device that the data routing forwarding is provided for the both sides that set up described network connection, it is characterized in that, may further comprise the steps:
S1, the mutual message that described connection both sides are sent are monitored, and are write down the information of the up-to-date mutual message that monitors;
S2, after the described up-to-date mutual message that monitors, when arriving the default very first time when not monitoring new mutual message, disconnect described network connection by end message to the two-way transmission of described connections both sides.
2. the control method that network according to claim 1 connects is characterized in that, also comprises before the described step S2:
A1, after the described up-to-date mutual message that monitors, when arriving the second default time when not monitoring new mutual message, the structural exploration message is two-way to send to described connection both sides;
If A2 receives the response of described connection both sides to described probe messages, then keep described network to connect;
A side then disconnects described network connection by end message to the two-way transmission of described connection both sides to the response of described probe messages if A3 does not receive either party or only receives wherein, finishes;
Wherein, the described second default time is less than the described default very first time.
3. the control method that network according to claim 1 connects, it is characterized in that, further comprising the steps of: when receiving manual network connection open command, the two-way transmission termination of the connection both sides message that connects by the network to described appointment disconnects described network connection; Wherein, the network of described appointment is connected to one or more.
4. the control method that connects according to the arbitrary described network of claim 1-3, it is characterized in that the information of the up-to-date mutual message that monitors of described record comprises: write down one of the transmitting time of described mutual message and source IP address and purpose IP address, source port and destination interface, sequence number and response sequence number or combination in any.
5. the control method that connects according to the arbitrary described network of claim 1-3 is characterized in that, described network is connected to TCP and connects.
6. the control method that network according to claim 5 connects is characterized in that, and is described by sending respectively and end message and disconnect the network step of connecting and comprise to connecting both sides:
C1, according to the information of the described up-to-date mutual message that monitors, construct TCP RESET message respectively;
C2, respectively described TCP RESET message is sent to corresponding connection side, its socket socket is closed.
7. the control device that connects of a network, being applied in to setting up the both sides that described network connects provides on the routing device of data routing forwarding, it is characterized in that, comprising:
Mutual monitoring messages module is used for the mutual message that described connection both sides send is monitored;
The message information logging modle is connected with described mutual monitoring messages module, is used to write down the information of the up-to-date mutual message that monitors;
First detection module is connected with the message information logging modle with described mutual monitoring messages module, is used for not monitoring under the situation of new mutual message in the default very first time of arrival, and trigger network connects the disconnection module;
Network connects the disconnection module, is used to receive the triggering of described first detection module, ends message to the two-way transmission of described connection both sides and disconnects described network connection.
8. the control device that network according to claim 7 connects is characterized in that, also comprises:
Second detection module is connected with the message information logging modle with described mutual monitoring messages module, is used for not monitoring under the situation of new mutual message in the second default time of arrival, triggers the probe messages processing module; Wherein, the described second default time is less than the described default very first time;
The probe messages processing module, be used to receive the triggering of described second detection module, the structural exploration message is two-way to send to described connection both sides, and, discern the response of described connection both sides to described probe messages, do not receiving either party or only receiving under the situation of a wherein side response, triggering described network connection disconnection module and disconnect described network connection.
9. the control device that network according to claim 7 connects, it is characterized in that, also comprise the instruction module that is provided with man-machine interface, be used to receive manual network and connect open command, and trigger the network connection that described network connection disconnection module disconnects described appointment; Wherein, the network of described appointment is connected to one or more.
10. the control device that connects according to the arbitrary described network of claim 7-9, it is characterized in that the information of described message information logging modle record comprises: one of the transmitting time of the up-to-date mutual message that monitors and source IP address and purpose IP address, source port and destination interface, sequence number and response sequence number or combination in any.
11. the control device according to the arbitrary described network of claim 7-9 connects is characterized in that the bipartite network of described connection is connected to TCP and connects.
12. the control device that network according to claim 11 connects is characterized in that, described network connects the disconnection module and comprises:
TCP RESET structural unit is used for constructing TCP RESET message respectively according to triggering;
TCP RESET transmitting element is connected with described TCP RESET structural unit, is used for respectively described TCP RESET message being sent to corresponding connection side, and its socket socket is closed
13. a routing device is characterized in that, is provided with the control device that connects as the arbitrary described network of claim 7-12.
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| Application Number | Priority Date | Filing Date | Title |
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| CNA2008100938863A CN101262452A (en) | 2008-05-04 | 2008-05-04 | Network connection control method and control device and routing device |
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| CNA2008100938863A CN101262452A (en) | 2008-05-04 | 2008-05-04 | Network connection control method and control device and routing device |
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| CN101854429A (en) * | 2010-03-10 | 2010-10-06 | 深圳市同洲电子股份有限公司 | Control method of network connection and mobile communication terminal |
| CN103139247A (en) * | 2011-11-28 | 2013-06-05 | 百度在线网络技术（北京）有限公司 | Keep-alive method, system and device for rear-end server in load balancing system |
| CN104301235A (en) * | 2013-07-18 | 2015-01-21 | 腾讯科技（深圳）有限公司 | Network flow control method and device |
| CN104335547A (en) * | 2012-04-18 | 2015-02-04 | 高通股份有限公司 | Method, apparatuses and computer program product for initiating closing of a transport layer connection at a client |
| CN106406782A (en) * | 2016-11-23 | 2017-02-15 | 宜春小马快印科技有限公司 | Access control method and system for network communication equipment |
| CN106533845A (en) * | 2016-12-27 | 2017-03-22 | 海尔优家智能科技（北京）有限公司 | Long-connection state monitoring method and device |
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| CN101854429A (en) * | 2010-03-10 | 2010-10-06 | 深圳市同洲电子股份有限公司 | Control method of network connection and mobile communication terminal |
| CN103139247A (en) * | 2011-11-28 | 2013-06-05 | 百度在线网络技术（北京）有限公司 | Keep-alive method, system and device for rear-end server in load balancing system |
| CN103139247B (en) * | 2011-11-28 | 2015-11-25 | 百度在线网络技术（北京）有限公司 | The keepalive method of back-end server, system and device in SiteServer LBS |
| CN104335547B (en) * | 2012-04-18 | 2017-07-04 | 高通股份有限公司 | Method, device and computer-readable medium for initiating the closing to transport layer connection at client |
| CN104335547A (en) * | 2012-04-18 | 2015-02-04 | 高通股份有限公司 | Method, apparatuses and computer program product for initiating closing of a transport layer connection at a client |
| CN104301235A (en) * | 2013-07-18 | 2015-01-21 | 腾讯科技（深圳）有限公司 | Network flow control method and device |
| CN107240439A (en) * | 2013-10-09 | 2017-10-10 | 日立化成株式会社 | Presoak mica tape and use its coil |
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| CN106406782A (en) * | 2016-11-23 | 2017-02-15 | 宜春小马快印科技有限公司 | Access control method and system for network communication equipment |
| CN106713036A (en) * | 2016-12-27 | 2017-05-24 | 中国建设银行股份有限公司 | Fault processing method and system of mobile terminal payment system |
| CN106533845A (en) * | 2016-12-27 | 2017-03-22 | 海尔优家智能科技（北京）有限公司 | Long-connection state monitoring method and device |
| CN106713036B (en) * | 2016-12-27 | 2020-06-30 | 中国建设银行股份有限公司 | Fault processing method and system for mobile terminal payment system |
| CN108123940A (en) * | 2017-12-18 | 2018-06-05 | 中国科学院深圳先进技术研究院 | Asynchronous communication method, storage medium and processor based on socket |
| CN108123940B (en) * | 2017-12-18 | 2020-07-24 | 中国科学院深圳先进技术研究院 | Socket-based asynchronous communication method, storage medium and processor |
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