WO2017219786A1

WO2017219786A1 - Method and device for constructing application connection, and terminal

Info

Publication number: WO2017219786A1
Application number: PCT/CN2017/084124
Authority: WO
Inventors: 张洁
Original assignee: 中兴通讯股份有限公司
Priority date: 2016-06-24
Filing date: 2017-05-12
Publication date: 2017-12-28
Also published as: CN107547583A

Abstract

Provided are a method and device for constructing an application connection, and a terminal, which relate to the field of data communications. The method comprises: detecting an action of a terminal in an initialised state of an application connection; when the action is sending an application connection notification message to a terminal to be connected, acquiring the type of received application connection message sent by the terminal to be connected; and according to the type of the received application connection message, constructing an application connection with the terminal to be connected. The solution of the disclosure solves the problem in existing application connection construction schemes that the synchronisation of redundant data of an application is affected due to the fact that no application connection can be constructed between terminals or the construction time is slow. An application connection can be quickly established between devices, and the transmission of data is guaranteed.

Description

Method, device and terminal for constructing application connection

Technical field

The present disclosure relates to the field of data communications, and in particular to a method, an apparatus, and a terminal for constructing an application connection.

Background technique

As the requirements of the service provider are higher and higher, the dual-homed device is a commonly used device (CE). Way to achieve protection of PE nodes. At this time, the switching between PE devices often requires synchronization information between PE devices, as shown in Figure 1. Therefore, a communication protocol between racks has emerged, that is, ICCP (Inter-Chassis Communication Protocol), for synchronizing information between racks when deploying a multi-chassis redundancy mechanism.

The information of the application needs to be synchronized between the PE devices, and the synchronization of the information must be orderly and reliable. This requires a mechanism to ensure. The IETF (The Internet Engineering Task Force) has published a Request for Comments RFC (RFC7275), which is based on the LDP (Label Distribution Protocol) protocol. Establish a channel between devices to ensure reliable and orderly delivery of interactive information between devices.

It provides a management mechanism to divide the devices that need to synchronize information into a redundancy group (RG), and establish and remove channels between devices through packets. The information that needs to be exchanged between devices is encapsulated into packets according to the TLV format. In the middle, the channel is sent to the other party.

Because the ICCP protocol is based on the LDP protocol extension, the advantages of using it for synchronous information synchronization between applications are: (1) ICCP can provide relatively low bandwidth, low latency and high reliability message transmission. (2) The protocol itself is scalable and can be used by multiple applications. (3) The reliability and timing of message transmission between nodes can be guaranteed. (4) A mechanism can be provided to detect the state of the node between the PE nodes of the RG group, and can timely notify the application of the failure notification of the PE node. (5) Provide multi-link and multi-connection mechanisms between nodes. (6) Ensure the security of transmission between redundant groups. (6) Allow flexible redundancy relationships. In most cases, two PEs form a redundancy group, but there may be multiple, even one node belonging to multiple redundancy groups at the same time.

The ICCP model can be divided into three levels: 1. Application layer: This layer can be used to provide interfaces to various business applications that use ICCP services for redundant data or configuration information synchronization. 2. Inter-rack communication layer: This layer is used for IGMP redundancy group members and connection management to establish ICCP channels for application data synchronization. 3. Transport layer: This layer provides ICCP message transmission.

The process of establishing a transmission channel for an ICCP is divided into three steps: 1. The two RP sessions of the ICCP are triggered by the ICCP configuration between the two devices R1 and R2. 2. The two devices R1 and R2 establish an ICCP redundancy group connection by sending an ICCP redundancy group link message on the LDP session. 3. The two devices R1 and R2 are triggered by the relevant configuration of the application. Based on the ICCP redundancy group connection, the application connection is established for the specific application, and the application data can be synchronized on the basis of the establishment of the application connection.

It can be seen that ICCP provides a kind of inter-rack application information interaction between specific redundancy groups. The mechanism enables the PE device to establish an application connection with the peer PE device, provided that the ICCP RG group connection is established between the two device nodes.

When the connection of the RG group of the ICCP has been successfully established, the application connection configuration may be triggered by the application configuration of the device. After the application connection message is sent, the application connection status will enter the connection to send the CONNSENT state. Assume that the RG group connection of the ICCP is established on both ends of the device. At the same time, if the connection establishment of the RG group is completed and the application configuration is configured on both ends, the application connection message may be sent at both ends (or there is such a way). Scenario: The RG group connection establishment of the ICCP is detected by both ends, but because the message between the devices is congested, the application connection message is sent in the initial NONCONNECT state, and the CONNSENT state is entered. In the CONNSENT state, the application connection message with the A bit of 1 needs to be received, but if the other application connection message of the peer is received, the status will be restored to the NONCONNECT state, and the application state machine is restarted. In the limit case, the state of the application at both ends is always switched between the NONCONNECT state and the CONNSENT state, and the subsequent state cannot be reached at all times, so that the application connection cannot always be established. Application connection establishment cannot be achieved using the OPERATIONAL state, and the application's redundant data cannot be synchronized.

Summary of the invention

The purpose of the disclosure is to provide a method, a device and a terminal for constructing an application connection, which can quickly establish an application connection between devices, ensure data transmission, and avoid the possibility of establishing an application connection between terminals in special cases.

To achieve the above objective, an embodiment of the present disclosure provides a method for constructing an application connection, including:

Detecting the action of the terminal in the initialization state of the application connection;

And acquiring, by the action, the type of the application connection message sent by the to-be-connected terminal, when the application connection notification message is sent to the to-be-connected terminal;

And establishing, according to the type of the application connection message received, an application connection with the terminal to be connected.

The step of constructing an application connection with the terminal to be connected according to the received type of the application connection message includes:

And if the received application connection message is an application connection notification message, sending an application connection establishment message to the to-be-connected terminal, and when the application connection establishment message sent by the to-be-connected terminal is received, establishing the to-be-connected Application connection of the terminal;

And if the application connection message is received as an application connection establishment message, establishing an application connection with the terminal to be connected.

The step of establishing an application connection with the terminal to be connected includes:

Sending an application connection establishment message to the to-be-connected terminal, completing establishment of an application connection with the to-be-connected terminal.

Wherein, the method further comprises:

When the action is that the application connection notification message sent by the to-be-connected terminal is received, sending an application connection establishment message to the to-be-connected terminal;

After receiving the application connection establishment message fed back by the terminal to be connected, the establishment of the application connection with the terminal to be connected is completed.

The application connection establishment message is an application connection message with a predefined field of 1. The application connection notification is cancelled. The message is an application connection message with a predefined field of 0.

In order to achieve the above objective, an embodiment of the present disclosure further provides a device for constructing an application connection, including:

a detecting module configured to detect an action of the terminal in an initialization state of the application connection;

An acquiring module, configured to acquire, when the action is an application connection notification message, to the to-be-connected terminal, the type of the application connection message sent by the received terminal to be connected;

And a processing module, configured to establish an application connection with the terminal to be connected according to the type of the received application connection message.

The processing module includes:

The first processing sub-module is configured to: if the received application connection message is an application connection notification message, send an application connection establishment message to the to-be-connected terminal, and receive an application connection establishment message sent by the to-be-connected terminal Establishing an application connection with the terminal to be connected;

The second processing submodule is configured to establish an application connection with the to-be-connected terminal if the application connection message is received as an application connection establishment message.

The first processing submodule/the second processing submodule includes:

And a sending unit, configured to send an application connection establishment message to the to-be-connected terminal, to complete establishment of an application connection with the to-be-connected terminal.

The construction device of the application connection further includes:

a sending module, configured to send an application connection establishment message to the to-be-connected terminal when the action is an application connection notification message sent by the terminal to be connected;

The receiving module is configured to receive an application connection establishment message fed back by the terminal to be connected, and complete establishment of an application connection with the terminal to be connected.

The application connection establishment message is an application connection message with a predefined field of 1. The application connection notification message is an application connection message with a predefined field of 0.

To achieve the above object, embodiments of the present disclosure also provide a terminal, including a construction device for an application connection as described above.

The beneficial effects of the above technical solutions of the present disclosure are as follows:

The application connection construction method of the embodiment of the present disclosure understands the location of the terminal in the application connection by detecting the action of the terminal in the NONCONNECT state. Upon detecting that the terminal sends an application connection notification message to the terminal to be connected, the terminal enters the CONNSENT state and waits for the peer, that is, the message of the terminal to be connected. After the terminal sends the application connection notification message to the to-be-connected terminal, the type of the application connection message sent by the terminal to be connected received by the terminal is obtained. Then, depending on the type of the application connection message, the application connection with the terminal to be connected is constructed in different ways. In this way, even after the RG group connection is successfully established, the application connection notification message is used to initiate the application connection at the same time or because of the message congestion between the two ends, and the application connection is continued to be established, so as to quickly establish an application connection between the devices. To ensure the transmission of data.

DRAWINGS

Figure 1 is a schematic diagram of an ICCP networking scenario;

2 is a flow chart of steps of a method for constructing an application connection according to an embodiment of the present disclosure;

3 is a schematic diagram of a state machine for establishing an application connection by using a method for constructing an application connection according to an embodiment of the present disclosure;

4 is a schematic diagram of a sequence of application state transitions of a terminal in a scenario in which a method for constructing an application connection according to an embodiment of the present disclosure is applied;

5 is a schematic diagram of an application state transition sequence of a terminal in a scenario 2 of a method for constructing an application connection according to an embodiment of the present disclosure;

FIG. 6 is a schematic structural diagram of an apparatus for constructing an application connection according to an embodiment of the present disclosure.

detailed description

The technical problems, the technical solutions, and the advantages of the present invention will be more clearly described in conjunction with the accompanying drawings and specific embodiments.

The present disclosure provides a method for constructing an application connection, which can quickly establish an application between devices, for the problem that the application connection cannot exist in the existing application connection construction scheme or the establishment time is slow to affect the application redundancy data synchronization. Connection to ensure the transmission of data.

As shown in FIG. 2, a method for constructing an application connection according to an embodiment of the present disclosure includes:

Step 101: Detect an action of the terminal in an initialization state of the application connection;

Step 102: When the action is to send an application connection notification message to the to-be-connected terminal, obtain the type of the application connection message sent by the terminal to be connected.

Step 103: Construct an application connection with the terminal to be connected according to the type of the received application connection message.

In the application connection construction method of the embodiment of the present disclosure, the terminal connected to the application is configured as the network side edge device, and the RG group connection is successfully established, and the application connection is established. Therefore, the terminal is in the initialization state of the application connection at this time (NONCONNECT) status). Through the above step 101, the action of the terminal in the NONCONNECT state is first detected, and the location of the terminal in the application connection is known. When the terminal sends the application connection notification message to the to-be-connected terminal, the application connection notification message is a message for initiating the establishment of the application connection, indicating that the terminal initiates the application connection end, and the terminal enters the connection transmission state ( CONNSENT state), waiting for the peer, that is, the message of the terminal to be connected. However, the application connection message sent by the received terminal to be connected may be an application sent by the to-be-connected terminal after receiving the application connection notification message of the terminal, in the CONNSENT state, because the terminal is not in communication with the terminal. The connection establishment message may also be an application connection notification message sent by the to-be-connected terminal before receiving the application connection notification message of the terminal. Therefore, in step 102, after the terminal sends the application connection notification message to the terminal to be connected, Obtaining the type of the application connection message sent by the terminal to be connected received by the terminal. Then, as in step 103, an application connection with the terminal to be connected is constructed in a different manner according to the type of the application connection message.

In this way, even after the RG group connection is successfully established, the application connection notification message is used to initiate the application connection at the same time or because of the message congestion between the two ends, and the application connection is continued to be established, so as to quickly establish an application connection between the devices. To ensure the transmission of data.

Specifically, step 103 includes:

As shown in FIG. 3, the terminal sends an application connection notification message to the to-be-connected terminal in the NONCONNECT state. After entering the CONNSENT state, it is determined that the received application connection message sent by the terminal to be connected is also an application connection notification message. It can be known that the terminal to be connected also actively initiates the establishment of an application connection. After that, in order to avoid the feedback of both ends in the CONNSENT state, the terminal will actively send an application connection establishment message to the terminal to be connected, and enter the connection reception state (CONNRECV state). In the CONNRECV state, when receiving the application connection establishment message fed back by the terminal to be connected, the device enters the secondary connection reception state (ABIT_CONNRECV state), establishes an application connection with the terminal to be connected, and enters the usable state (OPERATIONAL state).

In the CONNSENT state, by determining that the received application connection message sent by the terminal to be connected is an application connection establishment message, it can be learned that the to-be-connected terminal receives the application connection notification message sent by the terminal in the NONCONNECT state, and feedbacks The application connection establishment message, at this time, it is possible to establish an application connection with the terminal to be connected, and enter the usable state OPERATIONAL state.

It can be seen from the above that the terminal has received the application connection establishment message fed back from the terminal to be connected, but the terminal to be connected does not know the situation of the terminal. Therefore, in step 103, the application with the terminal to be connected is established. The step of connecting includes: sending an application connection establishment message to the terminal to be connected, and completing establishment of an application connection with the terminal to be connected.

After receiving the application connection establishment message fed back by the terminal to be connected in the CONNSENT state or the ABIT_CONNRECV state, the terminal feeds back the application connection establishment message to the to-be-connected terminal, enters the OPERATIONAL state, and completes the establishment of the application connection with the terminal to be connected.

In addition, after the RG group connection is successfully established between the network side edge devices, the terminal to be connected at the opposite end may preferentially initiate the establishment of the application connection due to the configuration. Therefore, on the basis of the foregoing embodiment, the application connection construction method of the embodiment of the present disclosure further includes:

Step 104, when the action is that the application connection notification message sent by the to-be-connected terminal is received, sending an application connection establishment message to the to-be-connected terminal;

Step 105: After receiving the application connection establishment message fed back by the terminal to be connected, complete establishment of an application connection with the terminal to be connected.

As shown in FIG. 3, in the NONCONNECT state, the terminal can also initiate the establishment of the application connection in the future, and receive the application connection notification message sent by the terminal to be connected, and learn that the terminal to be connected has preferentially initiated the establishment of the application connection. The terminal enters the CONNRECV state, and in the CONNRECV state, the application connection establishment message is fed back to the terminal to be connected, and enters the connection establishment state (CONNECTING state). Then, if the application connection establishment message fed back by the terminal to be connected is received again, the terminal enters the OPERATIONAL state, and the establishment of the application connection with the terminal to be connected is completed.

It should be noted that the application connection message of the interaction between the PE devices is often encapsulated into the message according to the TLV format, and the type of the application connection message is used to notify the peer terminal to determine the application connection establishment for establishing the application connection. The message is also an application connection notification message for initiating an application connection to the peer terminal, and the definition is differentiated in a predefined field of the application connection message. Optionally, the application connection message with an A bit (Acknowledgement bit) of 1 is an application connection establishment message, and the application connection message with an A bit of 0 is an application connection notification message.

In addition, the method for constructing an application connection in the embodiment of the present disclosure enters the NONCONNECT state in a non-NONCONNECT state, closes the connection, or receives an unacceptable message.

For example, the A and B terminals have the relevant configuration of the ICCP redundancy group, and the ICCP-dedicated LDP target session can be established. The connection of the ICCP redundancy group can be successfully established on the basis of the LDP session. After the relevant configuration is applied, the application connection is triggered. The establishment of. The application of the application connection method of the embodiment of the present disclosure to the terminal is as follows:

Scenario 1. As shown in Figure 4, the two terminals are triggered by the configuration to initiate the application connection message at the same time. The state transition timing is as follows. Because the state transitions of A and B are the same, only one is used as an example for further explanation.

Sending an application connection notification message in the NONCONNECT state, and the state is switched to the CONNSENT state;

Receiving the application connection message sent by the peer end, determining that the application connection notification message is triggered, triggering the application connection establishment message with the A bit being 1, and the state is switched to the CONNRECV state;

Receiving an application connection establishment message with the A bit of 1 sent by the peer end, and the state is switched to the ABIT_CONNRECV state;

Trigger to send an application connection setup message with A bit 1 and switch to the OPERATIONAL state.

Scenario 2: As shown in Figure 5, the two terminals initiate application connection messages by configuration triggers. The timing and state transitions are as follows. Because the state transitions of A and B are different, they are further explained separately.

A terminal:

Receiving an application connection establishment message that the A bit sent by the peer end is 1, and determining that the connection establishment message is applied;

B terminal:

Receiving an application connection notification message in the NONCONNECT state, the state is switched to the CONNRECV state;

Send an application connection establishment message with A bit of 1, and the state is switched to the CONNECTING state;

The application connection establishment message with the A bit of 1 sent by the peer end is received, and the state is switched to the OPERATIONAL state.

In summary, the application connection construction method of the embodiment of the present disclosure understands the location of the terminal in the application connection by detecting the action of the terminal in the NONCONNECT state. Upon detecting that the terminal sends an application connection notification message to the terminal to be connected, the terminal enters the CONNSENT state and waits for the peer, that is, the message of the terminal to be connected. After the terminal sends the application connection notification message to the to-be-connected terminal, the type of the application connection message sent by the terminal to be connected received by the terminal is obtained. Then, depending on the type of the application connection message, the application connection with the terminal to be connected is constructed in different ways. In this way, even after the RG group connection is successfully established, the application ends are sent simultaneously or because of the message congestion between the two ends. The notification message initiates the application connection, and the application connection is also continued to be constructed, so that the application connection between the devices is quickly established, and the data transmission is ensured.

As shown in FIG. 6, an embodiment of the present disclosure further provides a device for constructing an application connection, including:

The detecting module 601 is configured to detect an action of the terminal in an initialization state of the application connection;

The obtaining module 602 is configured to: when the action is to send an application connection notification message to the to-be-connected terminal, obtain the type of the application connection message sent by the terminal to be connected;

The processing module 603 is configured to establish an application connection with the to-be-connected terminal according to the type of the received application connection message.

The processing module includes:

The first processing submodule/the second processing submodule includes:

The construction device of the application connection further includes:

The application connection construction device of the embodiment of the present disclosure detects the action of the terminal in the NONCONNECT state through the detection module, and knows the location of the terminal in the application connection. When the acquiring module detects that the terminal sends the application connection notification message to the terminal to be connected, the terminal enters the CONNSENT state and waits for the peer end, that is, the message of the terminal to be connected. After the terminal sends the application connection notification message to the to-be-connected terminal, the type of the application connection message sent by the terminal to be connected received by the terminal is obtained. Then, the processing module constructs an application connection with the terminal to be connected in different manners according to the type of the application connection message. In this way, even after the RG group connection is successfully established, the application connection notification message is used to initiate the application connection at the same time or because of the message congestion between the two ends, and the application connection is continued to be established, so as to quickly establish an application connection between the devices. To ensure the transmission of data.

It should be noted that the device is a device to which the above-mentioned application connection construction method is applied, and the implementation manner of the embodiment of the application connection construction method is applicable to the device, and the same technical effect can be achieved.

Embodiments of the present disclosure also provide a terminal, including a construction device for an application connection as described above.

The application connection construction device of the embodiment of the present disclosure detects the action of the terminal in the NONCONNECT state, Understand the location of the terminal in the application connection. Upon detecting that the terminal sends an application connection notification message to the terminal to be connected, the terminal enters the CONNSENT state and waits for the peer, that is, the message of the terminal to be connected. After the terminal sends the application connection notification message to the to-be-connected terminal, the type of the application connection message sent by the terminal to be connected received by the terminal is obtained. Then, depending on the type of the application connection message, the application connection with the terminal to be connected is constructed in different ways. In this way, even after the RG group connection is successfully established, the application connection notification message is used to initiate the application connection at the same time or because of the message congestion between the two ends, and the application connection is continued to be established, so as to quickly establish an application connection between the devices. To ensure the transmission of data.

It should be noted that the terminal is a terminal to which the above-mentioned application connection construction method is applied, and the implementation manner of the embodiment of the application connection construction method is applicable to the terminal, and the same technical effect can be achieved.

It should be further noted that many of the functional components described in this specification are referred to as modules to more particularly emphasize the independence of their implementation.

In embodiments of the present disclosure, modules may be implemented in software for execution by various types of processors. For example, an identified executable code module can comprise one or more physical or logical blocks of computer instructions, which can be constructed, for example, as an object, procedure, or function. Nonetheless, the executable code of the identified modules need not be physically located together, but may include different instructions stored in different locations that, when logically combined, constitute a module and achieve the stated purpose of the module .

In practice, the executable code module can be a single instruction or a plurality of instructions, and can even be distributed across multiple different code segments, distributed among different programs, and distributed across multiple memory devices. As such, operational data may be identified within the modules and may be implemented in any suitable form and organized within any suitable type of data structure. The operational data may be collected as a single data set, or may be distributed at different locations (including on different storage devices), and may at least partially exist as an electronic signal on a system or network.

When the module can be implemented by software, considering the level of the existing hardware process, the module can be implemented in software, and the technician can construct a corresponding hardware circuit to implement the corresponding function without considering the cost. The hardware circuitry includes conventional Very Large Scale Integration (VLSI) circuits or gate arrays as well as existing semiconductors such as logic chips, transistors, or other discrete components. The modules can also be implemented with programmable hardware devices such as field programmable gate arrays, programmable array logic, programmable logic devices, and the like.

The above-described exemplary embodiments are described with reference to the drawings, and the various embodiments and embodiments of the present invention are not to be limits. Rather, these exemplary embodiments are provided so that this disclosure will be thorough and complete, and the scope of the disclosure will be disclosed to those skilled in the art. In these figures, component dimensions and relative dimensions may be exaggerated for clarity. The terminology used herein is for the purpose of describing the particular embodiments of the embodiments The singular forms "a", "the", and "the" It will be further understood that the terms "comprises" and/or "comprises", when used in the specification, mean the presence of the features, integers, steps, operations, components and/or components, but does not exclude one or more The presence or addition of features, integers, steps, operations, components, components, and/or their ethnic groups. Unless stated otherwise, a range of values includes the upper and lower limits of the range and any subranges in between.

The above is a preferred embodiment of the present disclosure, and it should be noted that those skilled in the art can also make several improvements and refinements without departing from the principles of the present disclosure. It should be considered as the scope of protection of this disclosure.

Industrial applicability

The present disclosure is applicable to the field of data communication, and solves the problem that an existing application connection connection solution cannot establish an application connection between terminals, or a slow setup time affects application redundant data synchronization, and can quickly establish an application connection between devices. Guarantee the transmission of data.

Claims

A method of constructing an application connection, comprising:

Detecting the action of the terminal in the initialization state of the application connection;

And acquiring, by the action, the type of the application connection message sent by the to-be-connected terminal, when the application connection notification message is sent to the to-be-connected terminal;

And establishing, according to the type of the application connection message received, an application connection with the terminal to be connected.
The method for constructing an application connection according to claim 1, wherein the step of constructing an application connection with the terminal to be connected according to the type of the application connection message received comprises:

And if the received application connection message is an application connection notification message, sending an application connection establishment message to the to-be-connected terminal, and when the application connection establishment message sent by the to-be-connected terminal is received, establishing the to-be-connected Application connection of the terminal;

And if the application connection message is received as an application connection establishment message, establishing an application connection with the terminal to be connected.
The method for constructing an application connection according to claim 2, wherein the step of establishing an application connection with the terminal to be connected comprises:

Sending an application connection establishment message to the to-be-connected terminal, completing establishment of an application connection with the to-be-connected terminal.
The method for constructing an application connection according to claim 1, further comprising:

When the action is that the application connection notification message sent by the to-be-connected terminal is received, sending an application connection establishment message to the to-be-connected terminal;

After receiving the application connection establishment message fed back by the terminal to be connected, the establishment of the application connection with the terminal to be connected is completed.
The method for constructing an application connection according to claim 1, wherein the application connection establishment message is an application connection message with a predefined field of 1; and the application connection notification message is an application connection message with a predefined field of 0.
A construction device for connecting applications, comprising:

a detecting module configured to detect an action of the terminal in an initialization state of the application connection;

An acquiring module, configured to acquire, when the action is an application connection notification message, to the to-be-connected terminal, the type of the application connection message sent by the received terminal to be connected;

And a processing module, configured to establish an application connection with the terminal to be connected according to the type of the received application connection message.
The device for constructing an application connection according to claim 6, wherein the processing module comprises:

The first processing sub-module is configured to: if the received application connection message is an application connection notification message, send an application connection establishment message to the to-be-connected terminal, and receive an application connection establishment message sent by the to-be-connected terminal Establishing an application connection with the terminal to be connected;

The second processing submodule is configured to establish an application connection with the to-be-connected terminal if the application connection message is received as an application connection establishment message.
The device for constructing an application connection according to claim 7, wherein the first processing submodule/the second processing submodule comprises:

And a sending unit, configured to send an application connection establishment message to the to-be-connected terminal, to complete establishment of an application connection with the to-be-connected terminal.
The device for constructing an application connection according to claim 6, further comprising:

a sending module, configured to send an application connection establishment message to the to-be-connected terminal when the action is an application connection notification message sent by the terminal to be connected;

The receiving module is configured to receive an application connection establishment message fed back by the terminal to be connected, and complete establishment of an application connection with the terminal to be connected.
The application connection construction apparatus according to claim 6, wherein the application connection establishment message is an application connection message with a predefined field of 1; and the application connection notification message is an application connection message with a predefined field of 0.
A terminal comprising the construction device of the application connection according to any one of claims 6 to 10.
A computer storage medium storing execution instructions for performing the method of any one of claims 1 to 5.