CN116668624A - Link detection method, device and equipment - Google Patents

Abstract

The embodiment of the application provides a link detection method, a device and equipment, wherein the method comprises the following steps: the method comprises the steps that a first electronic device receives at least one Session Initiation Protocol (SIP) message sent by a second electronic device; obtaining detection information of an SIP message; detecting whether the received at least one SIP message is abnormal or not according to the received at least one SIP message and the detection information of the SIP message, and generating detection result information; and sending the detection result information to the second electronic equipment. Therefore, by the method, whether the SIP message is abnormal or not when being transmitted in the link between the first electronic equipment and the second electronic equipment can be detected, so that the related abnormal problems can be processed later, and the problem that the video conference cannot be initiated normally is avoided.

Description

A link detection method, device and equipment

technical field

The present application relates to the technical field of communications, and in particular to a link detection method, device and equipment.

Background technique

With the rapid development of Internet technology, the traditional telephone network has been gradually replaced, and users usually choose video conferencing to communicate. Video conferencing is a meeting in which people at two or more locations conduct face-to-face conversations through communication devices and networks. Among them, the commonly used control protocol for video conferencing is Session Initiation Protocol (SIP), which is part of the standard process formulated by the Internet Engineering Task Force (IETF). Advanced Telephony Services for the Internet. The SIP protocol is used to initiate, modify and end a session between one or more participants and thus plays an important role in conducting a call or video conference. At present, the SIP protocol is receiving more and more attention from the industry, and the SIP-based video conferencing system is being used more and more widely.

In the prior art, a video conference system consists of four parts: a video conference terminal, a video conference server (Multipoint Control Unit, MCU), a network management system, and a transmission network. Wherein, the SIP packet is a basic information unit for communication between the SIP terminal and the server. The SIP message includes call (INVITE), confirmation (Acknowledgment, ACK), inquiry (OPTIONS), end session (BYE), cancellation (CANCEL) and registration (REGISTER) types. For example, when a user uses a video conference as a calling party, first the SIP terminal will send a SIP message about the call request to the server. The SIP message includes two parts: a message header and a message body. Wherein, the message header includes information such as the address of the calling party and the called party, the subject of the call, and the priority of the call, and the message body of the message mainly includes media control information described by the Session Description Protocol (Session Description Protocol, SDP), which is used for negotiation and negotiation by the SIP terminal. To establish a media channel, the SDP may include the following media information: media type (audio, video, etc.), transport protocol (Real-time Transport Protocol (Real-time Transport Protocol, RTP), User Datagram Protocol (User Datagram Protocol, UDP), etc.), media format (H.264 digital video compression format, Advanced Audio Coding (AAC) etc.), transmission address and port information and other information.

Due to the complexity and diversity of the Internet situation, abnormalities may occur during the transmission of SIP packets in the link, such as packet loss, incomplete SIP packets, and problems with Network Address Translation (NAT) devices. For example, when a SIP terminal sends a SIP message to the server, if the server times out, the SIP message cannot be received, that is, there may be packet loss during the link transmission of the SIP message; when the data packet of the SIP message is larger than When the maximum transmission unit of the link is large, it will be decomposed into many small enough fragments to be able to transmit on the link. There may be a loss in the network, which will cause the SIP message received by the server to be incomplete; if there is a Network Address Translation (Network Address Translation, NAT) device in the specific network connected to the terminal, then when the SIP message sent by the terminal is in the When transmitting through a NAT device in a specific network, the NAT device will change the port information in the message body of the SIP message. When the SIP message is abnormal, it will affect the normal initiation of the video conference. Therefore, special technology is needed to detect whether there is an abnormality when the SIP message is transmitted in the link between the SIP terminal and the server.

Contents of the invention

In view of this, the present application provides a link detection method, device and equipment, so as to solve the problem that the abnormality of the SIP message affects the normal initiation of the video conference.

In the first aspect, the embodiment of the present application provides a link detection method, including:

The first electronic device receives at least one session initiation protocol SIP message sent by the second electronic device;

Obtaining detection information of a SIP message; the detection information of the SIP message is used to indicate relevant information of at least one SIP message sent by the second electronic device;

Detecting whether the at least one received SIP message is abnormal according to the received at least one SIP message and the detection information of the SIP message, and generating detection result information;

sending the detection result information to the second electronic device.

Preferably, the detection information of the SIP message includes the number of SIP messages sent;

According to the at least one SIP message received and the detection information of the SIP message, detecting whether the at least one SIP message received is abnormal, and generating detection result information includes:

According to the number of the at least one received SIP message and the number of sent SIP messages, detect whether there is abnormal packet loss in the SIP message;

If there is a packet loss exception, then according to the quantity of the at least one SIP message received and the number of transmissions of the SIP message, determine the packet loss rate of the SIP message;

generating first detection result information according to the packet loss rate of the SIP message, where the first detection result information includes the packet loss rate of the SIP message.

Preferably, the detection information of the SIP message includes the sending time period of the SIP message;

Before receiving at least one SIP message sent by the second electronic device, it also includes:

Determine the preset time range for receiving the SIP message according to the sending time period of the SIP message;

The receiving at least one SIP packet sent by the second electronic device includes:

Within the preset time range, at least one SIP message sent by the second electronic device is received.

Preferably, the detection information of the SIP message includes: verification information corresponding to each SIP message in the at least one SIP message; the verification information includes a message header of the SIP message;

According to the at least one SIP message received and the detection information of the SIP message, detecting whether the at least one SIP message received is abnormal, and generating detection result information includes:

For each SIP message in the at least one SIP message received, according to the received SIP message and the message header in the verification information corresponding to the SIP message, detect whether the SIP message has a missing exception ;

If there is a missing exception, generate the second detection result information corresponding to the SIP message according to the missing abnormality of the SIP message, wherein the second detection result information carries information corresponding to the missing exception of the SIP message .

Preferably, the method according to claim 4, wherein, according to the received SIP message and the message header in the verification information corresponding to the SIP message, it is detected whether the SIP message has a missing exception include:

According to the message header of the received SIP message and the message header in the corresponding verification information of the SIP message, detect the received message header of the SIP message and the corresponding verification information of the SIP message Whether the message header of the message is consistent;

If the message header of the received SIP message is inconsistent with the message header in the verification information corresponding to the SIP message, it is determined that there is a missing exception, or

If the message header of the received SIP message is consistent with the message header in the corresponding verification information of the SIP message, then according to the received SIP message and the corresponding verification information of the SIP message, check the message header in the verification information, and detect whether the message body length of the SIP message received is consistent with the message body length of the SIP message recorded in the message header in the verification information ;

If the length of the message body of the received SIP message is inconsistent with the length of the message body of the SIP message recorded in the message header of the verification information, it is determined that there is a missing exception.

Preferably, the verification information includes data information of the SIP message;

According to the at least one SIP message received and the detection information of the SIP message, detecting whether the at least one SIP message received is abnormal, and generating detection result information includes:

Obtaining data information in the received SIP message for each SIP message in the at least one received SIP message;

According to the data information in the received SIP message and the data information in the verification information corresponding to the SIP message, detect whether there is a conversion abnormality in the SIP message, and the conversion abnormality refers to the first electronic device The received SIP message is a converted SIP message through NAT;

If there is a conversion abnormality, generate third detection result information corresponding to the SIP message according to the conversion abnormality of the SIP message, wherein the third detection result information carries information about the conversion abnormality corresponding to the SIP message information.

In a second aspect, the embodiment of the present application provides a link detection method, including:

The second electronic device receives the first detection request message sent by the third electronic device; the first detection request message carries identification information of the first electronic device;

sending at least one SIP packet and detection information of the SIP packet to the first electronic device;

receiving the detection result information sent by the first electronic device;

Send the detection result information to the third electronic device.

In a third aspect, the embodiment of the present application provides a link detection method, including:

The third electronic device sends a first detection request message to the second electronic device; the first detection request message carries identification information of the first electronic device;

The detection result information sent by the second electronic device is received.

In a fourth aspect, the embodiment of the present application provides a link detection device, including:

a receiving unit, configured for the first electronic device to receive at least one session initiation protocol SIP message sent by the second electronic device;

An acquiring unit, configured to acquire detection information of a SIP message; the detection information of the SIP message is used to indicate relevant information of at least one SIP message sent by the second electronic device;

A processing unit, configured to detect whether the at least one received SIP message is abnormal according to the received at least one SIP message and the detection information of the SIP message, and generate detection result information;

sending the detection result information to the second electronic device.

Preferably, the processing unit is specifically configured to, according to the number of the at least one received SIP message and the number of sent SIP messages, detect whether there is abnormal packet loss in the SIP message;

If there is a packet loss exception, then the packet loss rate of the SIP message will be determined according to the quantity of the at least one SIP message received and the number of SIP messages sent;

generating first detection result information according to the packet loss rate of the SIP message, where the first detection result information includes the packet loss rate of the SIP message.

Preferably, the receiving unit is specifically configured to determine a preset time range for receiving the SIP message according to the sending time period of the SIP message;

Within the preset time range, at least one SIP message sent by the second electronic device is received.

Preferably, the processing unit is further configured to, for each SIP message in the at least one received SIP message, according to the received SIP message and the message in the verification information corresponding to the SIP message Message header, detecting whether there is a missing exception in the SIP message;

If there is a missing exception, generate the second detection result information corresponding to the SIP message according to the missing abnormality of the SIP message, wherein the second detection result information carries information corresponding to the missing exception of the SIP message .

Preferably, the processing unit is further configured to detect the message header of the received SIP message and the SIP message header according to the received SIP message and the message header in the verification information corresponding to the SIP message Whether the message headers in the corresponding verification information of the message are consistent;

If the message header of the received SIP message is inconsistent with the message header in the corresponding verification information of the SIP message, it is determined that there is a missing exception, or

If the message header of the received SIP message is consistent with the message header in the corresponding verification information of the SIP message, then according to the received SIP message and the message in the corresponding verification information of the SIP message A message header, detecting whether the length of the SIP message received is consistent with the length of the SIP message recorded in the message header in the verification information;

If the length of the received SIP message is inconsistent with the length of the SIP message recorded in the message header in the verification information, it is determined that there is a missing exception.

Preferably, the processing unit is further configured to, for each SIP message in the at least one received SIP message, acquire data information in the received SIP message;

According to the data information in the received SIP message and the data information in the verification information corresponding to the SIP message, detect whether there is a conversion abnormality in the SIP message, and the conversion abnormality refers to the first electronic device The received SIP message is a converted SIP message through NAT;

If there is a conversion exception, generate third detection result information corresponding to the SIP message according to the conversion abnormality of the SIP message, wherein the third detection result information carries information corresponding to the conversion exception of the SIP message .

In a fifth aspect, the embodiment of the present application provides an electronic device, including:

A processor and a memory, the memory stores a computer program, and when the computer program is executed, the electronic device executes the method described in any one of the first aspect, the second aspect, or the third aspect.

Using the solutions provided in the embodiments of the present application, when detecting a link, the first electronic device receives at least one SIP message sent by the second electronic device, and obtains detection information of the SIP message. Wherein, the detection information of the SIP message is used to indicate the relevant information of at least one SIP message sent by the second electronic device, for example, it may be the number of SIP messages sent, the sending time period and other information. Then, according to the at least one received SIP message and the detection information of the SIP message, detect whether the at least one received SIP message is abnormal, and generate detection result information. For example, it is possible to detect whether there is an abnormal packet loss according to the number of at least one received message and the number of SIP messages sent in the detection information, and of course it can be detected according to at least one received SIP message and the detection information of the SIP message. Are there any other abnormalities. After the detection result information is generated, the detection result information is sent to the second electronic device. In this way, through the above method, it is possible to detect whether there is an abnormality when the SIP message is transmitted in the link between the first electronic device and the second electronic device, so as to deal with related abnormal problems later, thereby preventing the video conference from being abnormal initiated.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings that need to be used in the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present application. Those of ordinary skill in the art can also obtain other drawings based on these drawings without paying creative labor.

FIG. 1 is a schematic flow diagram of a link detection method provided in an embodiment of the present application;

FIG. 2 is a schematic flow chart of another link detection method provided in the embodiment of the present application;

FIG. 3 is a schematic flow diagram of another link detection method provided in the embodiment of the present application;

FIG. 4 is a schematic flow diagram of another link detection method provided in the embodiment of the present application;

FIG. 5 is a schematic structural diagram of a link detection device provided in an embodiment of the present application;

FIG. 6 is a schematic structural diagram of another link detection device provided by an embodiment of the present application;

FIG. 7 is a schematic structural diagram of another link detection device provided by an embodiment of the present application;

FIG. 8 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

Detailed ways

In order to better understand the technical solutions of the present application, the embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.

It should be clear that the described embodiments are only some of the embodiments of the present application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.

Terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of this application and the appended claims are also intended to include plural forms unless the context clearly indicates otherwise.

It should be understood that the term "and/or" used herein is only an association relationship describing associated objects, which means that there may be three relationships, for example, A and/or B, which may mean that A exists alone, and A and B exist simultaneously. B, there are three situations of B alone. In addition, the character "/" in this article generally indicates that the contextual objects are an "or" relationship.

Before the specific introduction of the embodiment of the present application, the terms applied or possibly applied in the embodiment of the present application are firstly explained.

Session initialization protocol (Session initialization Protocol, SIP): is a multimedia communication protocol developed by the Internet Engineering Task Force (Internet Engineering Task Force, IETF). It is a text-based application-layer control protocol for creating, modifying, and releasing sessions with one or more participants. SIP is a voice session control protocol originating from the Internet, which is flexible, easy to implement, and easy to expand.

SIP message: SIP message is the basic information unit for communication between SIP client terminal and server. SIP message is based on text, so it is also called SIP message. The SIP protocol draws on the design idea of the HTTP protocol (RFC 2068), and many message formats are the same as it. The SIP protocol supports the UDP transport protocol. There are two types of SIP messages: request messages and response messages. Among them, the request message refers to the SIP message sent by the client to the server in order to activate a specific operation, including call (INVITE), confirmation response (ACK), inquiry of the called end (OPTIONS), termination of the session (BYE), cancellation of the current request ( CANCEL) and registration (REGISTER) messages. SIP packet SIP message header field and SIP message body field. The SIP message header is mainly used to indicate the initiator and receiver of the message, and the basic information such as how many jumps have been passed; the SIP message body is mainly used to describe the specific implementation method of this session, through the Session Description Protocol (Session Description Protocol, SDP) to describe.

Network Address Translation (NAT): It is a wide area network (WideArea Network, WAN) technology, and a conversion technology that converts private addresses into legal Internet Protocol (Internet Protocol, IP) addresses.

Packet loss: It means that the data of one or more data packets cannot reach the destination through the network. Packet loss may cause jitter in streaming media technology, online games and video conferencing, and affect other online applications to a certain extent.

In related technologies, due to the complexity and diversity of the Internet situation, abnormalities may occur during the transmission of Session Initiation Protocol (SIP) messages in the link, such as packet loss, incomplete SIP messages, or passing through network addresses. Conversion (Network Address Translation, NAT) equipment problems. For example, when a SIP terminal sends a SIP message to the server, if the server times out, the SIP message cannot be received, that is, there may be packet loss during the link transmission of the SIP message; when the data packet of the SIP message is larger than When the maximum transmission unit of the link is large, it will be decomposed into many small enough fragments to be able to transmit on the link. There may be a loss in the network, which will cause the SIP message received by the server to be incomplete; if there is a Network Address Translation (Network Address Translation, NAT) device in the specific network connected to the terminal, then when the SIP message sent by the terminal is in the When transmitting through a NAT device in a specific network, the NAT device will change the port information in the message body of the SIP message. When the SIP message is abnormal, it will affect the normal initiation of the video conference. Therefore, special technology is needed to detect whether there is an abnormality when the SIP message is transmitted in the link between the SIP terminal and the server.

In view of the above problems, an embodiment of the present application provides a link detection method. In this method, when detecting a link, the first electronic device receives at least one SIP message sent by the second electronic device, and acquires detection information of the SIP message. Wherein, the detection information of the SIP message is used to indicate the relevant information of at least one SIP message sent by the second electronic device, for example, it may be the number of SIP messages sent, the sending time period and other information. Then, according to the at least one received SIP message and the detection information of the SIP message, detect whether the at least one received SIP message is abnormal, and generate detection result information. For example, it is possible to detect whether there is an abnormal packet loss according to the number of at least one received message and the number of SIP messages sent in the detection information, and of course it can be detected according to at least one received SIP message and the detection information of the SIP message. Are there any other abnormalities. After the detection result information is generated, the detection result information is sent to the second electronic device. In this way, through the above method, it is possible to detect whether there is an abnormality when the SIP message is transmitted in the link between the first electronic device and the second electronic device, so as to deal with related abnormal problems later, thereby preventing the video conference from being abnormal initiated. The details will be described below.

FIG. 1 is a schematic flowchart of a link detection method provided by an embodiment of the present application. Referring to Figure 1, the link detection method provided by the embodiment of the present application mainly includes the following steps:

Step S101, the first electronic device receives at least one session initiation protocol SIP message sent by the second electronic device.

In this embodiment of the application, when performing link detection, the second electronic device sends at least one session initiation protocol SIP message to the first electronic device, and the first electronic device receives at least one session initiation protocol SIP message sent by the second electronic device. arts. Wherein, before the first electronic device receives at least one SIP packet sent by the second electronic device, it may first receive the second detection request message sent by the second electronic device, and return a response message to the second electronic device to inform the second The electronic device can start sending SIP packets. Wherein, the second detection request message carries information related to at least one SIP message sent by the second electronic device, for example, it may be information such as the number of SIP messages sent, the time period for sending SIP messages, and the like. Then the second electronic device may send at least one SIP packet to the first electronic device, and the first electronic device receives at least one SIP packet sent by the second electronic device.

As a possible implementation, before receiving at least one SIP message sent by the second electronic device, the method further includes:

The preset time range for receiving the SIP message is determined according to the sending time period of the SIP message.

Specifically, after the first electronic device receives the second detection request message, it can parse the second detection request message to obtain the number of SIP messages sent and the time period for sending SIP messages. According to the number of SIP messages sent, the SIP The time period for sending the message may determine the preset time range for receiving the SIP message, that is, determine the time required to receive the SIP message sent by the second electronic device.

Further, receiving at least one SIP message sent by the second electronic device includes:

Receive at least one SIP packet sent by the second electronic device within a preset time range.

In this embodiment of the present application, after the preset time range is determined, the first electronic device may receive at least one SIP message sent by the second electronic device within the preset time range, and when the time reaches the preset time range Afterwards, it is indicated that all at least one SIP message sent by the second electronic device has been received.

It should be noted that the data information contained in at least one SIP message may be the same or different, and this application does not limit this.

Step S102, acquiring detection information of the SIP message.

Wherein, the detection information of the SIP message is used to indicate related information of at least one SIP message sent by the second electronic device.

Specifically, the first electronic device may obtain the detection information of the SIP packet, so as to detect at least one received SIP packet sent by the second electronic device.

As a possible implementation manner, the detection information of the SIP message includes the number of SIP messages sent and the time period for sending the SIP message.

Wherein, the first electronic device may analyze the received second detection request message sent by the second electronic device, and obtain the number of IP packets sent and the time period of the SIP packet sent as detection information to detect whether the SIP packet exists. Abnormal packet loss.

As a possible implementation manner, the detection information of the SIP message includes: verification information corresponding to each SIP message in at least one SIP message. Wherein, the verification information includes a message header of the SIP message, and the verification information may also include data information of the SIP message.

Specifically, when the second electronic device sends at least one SIP message to the first electronic device, it will also send the verification information corresponding to each SIP message to the first electronic device, and the first electronic device can obtain the received The verification information corresponding to each SIP message in the at least one SIP message is used as detection information, so that the subsequent first electronic device can detect the at least one received SIP message. A SIP message includes a message header and a message body, wherein the message header includes length information of the message body; the message body includes data information of the SIP message. Therefore, the verification information may include the message header of the SIP message, and the verification information may also include the data information of the SIP message, so as to detect whether the received SIP message has missing abnormality or conversion abnormality.

Step S103 , according to the at least one received SIP message and the detection information of the SIP message, detect whether the at least one received SIP message is abnormal, and generate detection result information.

In the embodiment of this application, due to the complexity and diversity of the Internet situation, abnormalities will occur when SIP messages are transmitted in the link, such as packet loss exceptions, missing exceptions, conversion exceptions, etc. These abnormal problems will affect the video conference normal initiation. Therefore, after receiving at least one message and the detection information of the SIP message, the first electronic device can detect whether the at least one received SIP message is abnormal according to the received at least one SIP message and the detection information of the SIP message .

As a possible implementation, according to the received at least one SIP message and the detection information of the SIP message, detect whether the at least one SIP message received is abnormal, and generate detection result information including:

According to the number of received at least one SIP message and the number of sent SIP messages, detect whether there is a packet loss exception in the SIP message;

The first detection result information is generated according to the packet loss rate of the SIP message, where the first detection result information includes the packet loss rate of the SIP message.

Specifically, when the SIP message is transmitted in the link between the first electronic device and the second electronic device, there is a situation that the second electronic device does not receive the SIP message due to timeout, that is, there is a packet loss exception, if If the first electronic device does not receive the SIP message, it cannot process it according to the SIP message, which will affect the normal initiation of the video conference. Therefore, the first electronic device needs to detect whether there is abnormal packet loss in the SIP message. According to the quantity of at least one SIP packet received and the number of sent SIP packets in the detection information of the SIP packet, the first electronic device can detect whether there is abnormal packet loss in the SIP packet. If the number of at least one SIP message received is less than the number of SIP messages sent in the detection information of the SIP message, it is determined that the SIP message has a packet loss exception; if the number of at least one SIP message received is equal to the SIP message If the number of sent SIP packets in the detection information is determined, it is determined that there is no packet loss exception in the SIP packets.

If it is determined that there is abnormal packet loss in the SIP message, it is necessary to calculate the packet loss rate of the SIP message, and use the packet loss rate to reflect the loss of at least one SIP message during transmission in the link. Wherein, the packet loss rate is the ratio of the number of lost data packets to the number of data packets sent. In the embodiment of this application, a SIP message is a data packet, and the packet loss rate of a SIP message is the SIP packet loss rate. The ratio of the number of lost packets to the number of sent SIP packets. The first electronic device determines the packet loss rate of the SIP message according to the number of at least one SIP message received and the number of sent SIP messages. For example, the number of lost SIP messages can be determined according to the number of at least one SIP message received and the number of SIP messages sent, and then the packet loss can be determined according to the ratio of the number of lost SIP messages to the number of SIP messages sent rate, of course, it can also be in other ways, which is not limited in this application. Then, the first detection result information is generated according to the determined packet loss rate, where the first detection result information includes the packet loss rate of the SIP packet.

It should be noted that, if there is no packet loss abnormality, the first detection result information may be directly generated, and at this time, the first detection result information includes a packet loss rate of the SIP packet being zero.

As a possible implementation, according to the received at least one SIP message and the detection information of the SIP message, detect whether the at least one SIP message received is abnormal, and generate detection result information including:

For each SIP message in at least one SIP message received, according to the message header in the received SIP message and the corresponding check information of the SIP message, detect whether there is a missing exception in the SIP message;

If there is a missing exception, generate second detection result information corresponding to the SIP message according to the missing abnormality of the SIP message, wherein the second detection result information carries information about the missing abnormality corresponding to the SIP message.

Specifically, the maximum transmission unit of a link refers to the maximum length of a packet allowed during data transmission. Therefore, when a data packet of a SIP packet is larger than the maximum transmission unit of a link, it will be decomposed into many small enough fragments so that It can be transmitted on the link, that is, the SIP message is fragmented during transmission. However, the fragmentation of the SIP message may be lost during link transmission, which will cause the SIP message received by the first electronic device to be missing and abnormal. Since each SIP message may have a missing exception during transmission, therefore, missing and abnormal detection needs to be performed for each SIP message in at least one received SIP message. At this time, the first electronic device may detect whether the SIP message is missing abnormally according to the received SIP message and the message header in the verification information corresponding to the SIP message. If it is determined that there is a missing exception, it means that a corresponding detection result needs to be generated according to the determined missing abnormal information of the SIP message. At this time, the second detection result information corresponding to the SIP message may be generated according to the absence exception of the SIP message, wherein the second detection result information carries information about the absence exception corresponding to the SIP message.

It should be noted that, if there is no missing exception, the second detection result information may be directly generated, wherein the second detection result information carries information that the SIP packet does not have the missing exception.

Further, according to the message header in the received SIP message and the corresponding verification information of the SIP message, determining whether the SIP message has a missing exception includes:

According to the received SIP message and the message header in the corresponding verification information of the SIP message, detect the received message header of the SIP message and the message header in the corresponding verification information of the SIP message Is it consistent;

If the message header of the received SIP message is inconsistent with the message header in the corresponding verification information of the SIP message, it is determined that there is a missing exception, or

If the message header of the received SIP message is consistent with the message header in the corresponding verification information of the SIP message, then according to the received SIP message and the message in the corresponding verification information of the SIP message The message header detects whether the message body length of the SIP message received is consistent with the message body length of the SIP message recorded in the message header in the verification information;

If the length of the message body of the received SIP message is inconsistent with the length of the message body of the SIP message recorded in the message header in the verification information, it is determined that there is a missing exception.

Specifically, the SIP message includes a message header and a message body. Wherein, the message header includes the length information of the message body; the message body includes the data information of the SIP message. Therefore, for each SIP message in at least one SIP message received, it is possible to first detect whether there is a missing exception in the message header of the SIP message, and if there is a missing abnormality in the message header of the message, then determine that the SIP message There is a missing exception; if there is no missing abnormality in the message header of the message, continue to detect whether there is a missing abnormality in the message header of the SIP message. In this way, when it is detected that there is a missing exception in the message header of the SIP message, it is not necessary to detect whether there is a missing abnormality in the message body of the SIP message, and it can be determined that there is a missing abnormality in the SIP message, which saves Detection time. Based on this, when detecting whether the received SIP message has a missing exception, for each SIP message in the at least one received SIP message, the first electronic device may, according to the message message of the received SIP message header and the message header in the verification information corresponding to the SIP message, and check whether the two are consistent. Whether the data size of the message header is consistent. If it is determined that the message header of the received SIP message is inconsistent with the message header in the corresponding verification information of the SIP message, it means that the message header of the SIP message has a missing exception. SIP packets are missing.

If it is determined that the message header of the received SIP message is consistent with the message header in the corresponding verification information of the SIP message, it means that the message header of the SIP message is not missing abnormally, and you need to continue at this time Detect whether the message body of the SIP message is missing or not. Since the length of the message body of the SIP message is recorded in the message header in the verification information corresponding to the SIP message, the first electronic device can length, detecting whether the length of the message body of the received SIP message is consistent with the length of the message body of the SIP message in the verification information. If the length of the message message body of the SIP message received is inconsistent with the length of the message message body of the SIP message in the verification information, it is determined that the SIP message has a missing exception; If the length of the message body of the message is consistent with the length of the message body of the SIP message in the verification information, it is determined that there is no missing exception in the SIP message.

As a possible implementation, according to the received at least one SIP message and the detection information of the SIP message, detect whether the at least one SIP message received is abnormal, and generate detection result information including:

For each SIP message in at least one SIP message received, obtain the data information in the received SIP message;

According to the data information in the received SIP message and the data information in the verification information corresponding to the SIP message, detect whether there is a conversion abnormality in the SIP message, and the conversion abnormality means that the SIP message received by the first electronic device is The converted SIP message after the network address translation NAT;

If there is a conversion abnormality, generate third detection result information corresponding to the SIP message according to the conversion abnormality of the SIP message, wherein the third detection result information carries information about the conversion abnormality corresponding to the SIP message.

Specifically, since the network from the first electronic device to the second electronic device may be a specific network with a special network address translation (Network Address Translation, NAT) device, when the SIP message is transmitted in the specific network, the SIP message The data information will be converted, for example, the source port information recorded in the message body of the SIP message will be changed, the source port information is the port number information used by the second electronic device, including audio interface, video interface, earphone interface port number information, thereby affecting the normal initiation of the video conference indicated by the SIP message. Therefore, after receiving at least one SIP message, the first electronic device needs to detect whether there is a conversion abnormality in the received at least one SIP message. For each SIP message in the received at least one SIP message, the first electronic device may first obtain the data information in the received SIP message, and then detect the difference between the data information in the received SIP message and the SIP message. Whether the data information in the verification information corresponding to the text is consistent. If the data information in the received SIP message is inconsistent with the data information in the verification information corresponding to the SIP message, it is determined that there is a conversion exception in the SIP message; if the data information in the received SIP message is inconsistent with the If the data information in the verification information corresponding to the SIP message is consistent, it is determined that there is no conversion abnormality in the SIP message. If it is determined that there is a conversion abnormality, the third detection result information corresponding to the SIP message is generated according to the conversion abnormality of the SIP message, wherein the third detection result information carries information about the conversion abnormality corresponding to the SIP message.

In addition, if there is no conversion abnormality, the third detection result information corresponding to the SIP message may be directly generated, wherein the second detection result information carries information that the SIP message does not have conversion abnormality.

Step S104, sending detection result information to the second electronic device.

Specifically, after the first electronic device generates the detection result information, it needs to send the detection result information to the second electronic device, so as to inform the second electronic device of the detection result.

It should be noted that, for each SIP message in at least one received SIP message, it is necessary to perform the detection process of the above missing abnormality and conversion abnormality. The first electronic device can immediately detect the missing abnormality and conversion abnormality every time it receives a SIP message, and can also detect each received SIP message after receiving at least one SIP message within a preset time range. The text is tested, and this application does not limit it.

It should be noted that since the packet loss rate of the SIP packet needs to be calculated when there is an abnormal packet loss, the detection process of the abnormal packet loss can only be performed after receiving at least one SIP packet sent by the second electronic device. That is to say, the first electronic device receives at least one SIP message sent by the second electronic device within the preset time range, and when the preset time range is reached, it indicates that the at least one SIP message sent by the second electronic device has been received. At this time, the above abnormal packet loss detection process can be performed.

Exemplarily, it is assumed that when detecting the link between the second electronic device and the first electronic device, it is necessary to detect whether there are packet loss abnormalities, missing abnormalities, and conversion abnormalities when SIP packets are transmitted on the link. At this time, the first electronic device receives the second detection request message sent by the second electronic device, wherein the second detection request message includes 100 SIP packets to be sent, and the sending time period of the SIP packets is 10 ms. After receiving the second detection request message, the first electronic device returns a response message to the second electronic device. According to the number of SIP messages sent by the first electronic device is 100, and the sending time period of SIP messages is 10ms, it can be determined that the preset time range for receiving SIP messages is 1000ms, and within the preset time range of 1000ms, the first electronic device receives The first SIP message sent by the second electronic device receives the verification information corresponding to the first SIP message at the same time. Assume that the message header of the first SIP message received is A, the length of the message body is B, and the port number information contained in the message body C is D; the checksum corresponding to the first SIP message The information includes the message header E of the first SIP message and the data information F of the SIP message, wherein, the message header E of the first SIP message includes the length of the message body G, and the SIP The data information F of the message is the port number information H in the message body of the first SIP message.

Then, the first electronic device can obtain the detection information at this time, first obtain the verification information corresponding to the first SIP message, to detect whether there is a missing abnormality or conversion abnormality, and then can parse the second detection request message to obtain the SIP packet The number of sent messages is 100, and the sending time period of SIP messages is 10ms, which is used to detect whether there is abnormal packet loss. Therefore, the detection information includes the verification information corresponding to the first SIP message, the number of SIP messages sent, and the sending time period information. For each SIP message received, the first electronic device must detect whether the SIP message has missing abnormality and conversion abnormality, so it can detect the missing abnormality and conversion abnormality every time a SIP message is received .

At this time, for the first SIP message received, it is firstly detected for missing anomalies, and the data size of the message header A of the first SIP message received is first compared with the message message in the verification information Compare the data size of header E to determine whether the two are consistent. Assuming that the data size of the message header A of the first SIP message is consistent with the data size of the message header E in the verification information, it means that there is no missing abnormality in the message header of the first SIP message. Then continue to detect whether there is abnormality in the first SIP message body, because the length of the message body of the first SIP message received is B, and the length of the message body contained in the verification information is G, so The length B of the message body of the message can be compared with the length G of the message body of the message. If the length B of the message body of the message is smaller than the length G of the message body of the message, it is determined that the first SIP message has a missing exception. At this time, according to the missing exception in the first SIP message, generate the second detection result information, and send the second detection result information to the second electronic device, wherein the second detection result information includes the first SIP message The message body of the message is missing exception.

Then, for the first SIP message received, it is detected for conversion anomaly, and the data information in the first SIP message received is first obtained, that is, the message message of the first SIP message received is obtained Port number information D contained in body C. Since the data information F of the SIP message is the port number information H in the message body of the first SIP message, it is determined whether the port number information D is consistent with the port number information H in the verification information, if the port number If the information D is inconsistent with the port number information H in the verification information, it means that the first SIP packet is abnormally converted, that is, the first SIP packet received by the first electronic device is converted by NAT SIP packets. At this time, the third detection result information corresponding to the SIP message is generated according to the conversion abnormality of the first SIP message, and the third detection result information is sent to the second electronic device, wherein the third detection result information includes the first The port number information in the SIP packet is converted from the port number information H to the port number information D.

For each SIP packet received by the first electronic device and sent by the second electronic device, the above-mentioned missing and conversion abnormal detection process is performed, and details are not repeated here. When the preset time range is reached, it means that the second electronic device has sent 100 SIP packets, and the first electronic device has received the SIP packets sent by the second electronic device. At this time, it is necessary to detect whether the SIP packets are abnormally lost. . Assuming that the first electronic device determines that the number of received SIP packets is 95, since the number of received SIP packets is 95, and the number of SIP packets sent in the detection information is 100, it can be determined that there is packet loss in the SIP packets abnormal. Then it can be determined that the number of lost SIP messages is 5. Since the number of SIP messages sent is 100, the ratio of the number of lost SIP messages to the number of SIP messages sent can determine the packet loss of the SIP message The rate is 5%. The first detection result information is generated according to the packet loss rate of the SIP message, and the first detection result information is sent to the second electronic device, wherein the first detection result information includes a 5% packet loss rate of the SIP message.

In this way, according to the process described in the above example, the link detection between the second electronic device and the first electronic device can be completed, and whether there is a packet loss abnormality or missing abnormality when the SIP message is transmitted on the link can be detected And convert abnormal problems for subsequent processing of abnormal problems.

FIG. 2 is a schematic flowchart of another link detection method provided by the embodiment of the present application. As shown in Figure 2, the method includes the following steps:

Step S201, the second electronic device receives the first detection request message sent by the third electronic device.

Wherein, the first detection request message carries identification information of the first electronic device.

Specifically, the second electronic device receives the first detection request message sent by the third electronic device, and can parse the first detection request message to obtain the identification information of the first electronic device. A link with the first electronic device is detected.

Step S202, sending at least one SIP packet and detection information of the SIP packet to the first electronic device.

Specifically, after receiving the first detection request message sent by the third electronic device, the second electronic device may directly send at least one SIP packet and detection information of the SIP packet to the first electronic device.

In a possible embodiment, when the detection information includes the number of sent SIP packets and the sending time period, before sending at least one SIP packet to the first electronic device, the second electronic device may first send a message to the first electronic device When the device sends the second detection request message, the number of SIP packets to be sent and the sending time period may be added to the second detection request message. After receiving the second detection request message, the first electronic device may return a response message to the second electronic device, so as to inform the first electronic device that it can start sending at least one SIP packet. At this time, the second electronic device receives the response message sent by the first electronic device, and then starts to send at least one SIP message to the first electronic device. The second electronic device may also send at least one SIP message to the first electronic device, and at the same time send the number of SIP messages sent and the sending time period information to the first electronic device.

In a possible embodiment, the detection information includes verification information corresponding to each SIP message in at least one SIP message. At this time, when the second electronic device sends at least one SIP message to the first electronic device, it can simultaneously send the verification information corresponding to each SIP message in the at least one SIP message, so that the first electronic device can obtain each Verification information corresponding to a SIP packet.

Step S203, receiving detection result information sent by the first electronic device.

In the embodiment of the present application, after the first electronic device generates the detection result information, it will send the detection result information to the second electronic device, and the second electronic device receives the detection result information.

Step S204, sending the detection result information to the third electronic device.

Specifically, the second electronic device sends the received detection result information to the third electronic device, so as to inform the third electronic device of the link detection result.

FIG. 3 is a schematic flowchart of another link detection method provided by the embodiment of the present application. As shown in Figure 3, the method includes:

Step S301, the third electronic device sends a first detection request message to the second electronic device.

Wherein, the first detection request message carries identification information of the first electronic device.

Specifically, when it is necessary to detect the link between the second electronic device and the first electronic device, the third electronic device sends a first detection request message to the second electronic device, and the first detection request message carries the first detection request message. The identification information of an electronic device is used to trigger a link detection process.

Step S302, receiving detection result information sent by the second electronic device.

Specifically, the second electronic device sends the received detection result information to the third electronic device, and the third electronic device receives the detection result information to complete the link detection.

FIG. 4 is a schematic flowchart of another link detection method provided by the embodiment of the present application. As shown in Figure 4, the method includes:

Step S401, the third electronic device sends a first detection request message to the second electronic device, and the second electronic device receives the first detection request message sent by the third electronic device.

For details, reference may be made to the above step S301, which will not be repeated here.

Step S402, the second electronic device sends a second detection request message to the first electronic device, and the first electronic device receives the second detection request message sent by the second electronic device.

Wherein, the second detection request message carries information about the number of SIP packets to be sent and the sending time period.

For details, reference may be made to the above step S202, which will not be repeated here.

Step S403, the first electronic device returns a response message to the second electronic device.

Step S404, the second electronic device sends at least one SIP message and corresponding verification information to the first electronic device, and the first electronic device receives at least one SIP message and corresponding verification information sent by the second electronic device.

For details, reference may be made to the above step S202, which will not be repeated here.

Step S405, the first electronic device detects whether the at least one received SIP message is abnormal according to the at least one received SIP message and the detection information of the SIP message, and generates detection result information.

Wherein, the detection information includes the number of sent SIP messages received, sending time period information, and verification information corresponding to each SIP message in at least one SIP message.

For details, reference may be made to the above step S103, which will not be repeated here.

Step S406, the first electronic device sends the detection result information to the second electronic device, and the second electronic device receives the detection result information.

Step S407, the second electronic device sends the detection result information to the third electronic device, and the third electronic device receives the detection result information.

In this way, according to the link detection method described in the above-mentioned embodiment, it is possible to detect the abnormal problem when the SIP message is transmitted in the link, and the user can correspondingly respond to the detected abnormal problem according to the result of the link detection. To avoid inability to initiate sessions normally when using video conferencing in the future.

Corresponding to the above embodiment, as shown in FIG. 5, the embodiment of the present application also provides a link detection device, including:

The receiving unit 501 is configured for the first electronic device to receive at least one session initiation protocol SIP message sent by the second electronic device.

The acquiring unit 502 is configured to acquire detection information of a SIP packet; the detection information of the SIP packet is used to indicate relevant information of at least one SIP packet sent by the second electronic device.

The processing unit 503 is configured to detect whether the at least one received SIP message is abnormal according to the received at least one SIP message and the detection information of the SIP message;

Generate detection result information according to whether the at least one received SIP message is abnormal, and send the detection result information to the second electronic device.

In a possible embodiment, the processing unit 503 is specifically configured to, according to the number of at least one SIP message received and the number of sent SIP messages, detect whether there is a packet loss exception in the SIP message.

The processing unit 503 is also used to determine the packet loss rate of the SIP message according to the number of received at least one SIP message and the number of SIP messages sent if there is an abnormal packet loss;

Generate first detection result information according to the packet loss rate of the SIP message, and send the first detection result information to the second electronic device, wherein the first detection result information includes the packet loss rate of the SIP message.

In a possible embodiment, the receiving unit 501 is specifically configured to determine a preset time range for receiving the SIP message according to the sending time period of the SIP message;

Receive at least one SIP packet sent by the second electronic device within a preset time range.

In a possible embodiment, the processing unit 503 is further configured to, for each SIP message in at least one received SIP message, according to the received SIP message and the SIP message corresponding check information The message header of the message is used to detect whether there is a missing exception in the SIP message.

The processing unit 503 is further configured to, if there is a missing exception, generate second detection result information corresponding to the SIP packet according to the missing exception of the SIP packet, and send the second detection result information to the second electronic device. Wherein, the second detection result information carries information about missing and abnormal information corresponding to the SIP packet.

In a possible embodiment, the processing unit 503 is further configured to detect the received SIP message according to the message header of the received SIP message and the message header in the verification information corresponding to the SIP message. Whether the message header of the message and the message header in the corresponding verification information of the SIP message are consistent;

If the message header of the received SIP message is inconsistent with the message header in the corresponding verification information of the SIP message, it is determined that there is a missing exception, or

If the message header of the received SIP message is consistent with the message header in the corresponding verification information of the SIP message, then according to the received SIP message and the message in the corresponding verification information of the SIP message The message header detects whether the message body length of the SIP message received is consistent with the message body length of the SIP message recorded in the message header in the verification information;

If the length of the message body of the received SIP message is inconsistent with the length of the message body of the SIP message recorded in the message header in the verification information, it is determined that there is a missing exception.

In a possible embodiment, the processing unit 503 is further configured to, for each SIP message in the at least one received SIP message, acquire the data information in the received SIP message;

According to the data information in the received SIP message and the data information in the verification information corresponding to the SIP message, detect whether there is a conversion abnormality in the SIP message, wherein the conversion abnormality refers to the SIP message received by the first electronic device The text is the converted SIP message after the network address translation NAT.

The processing unit 503 is further configured to, if there is a conversion abnormality, generate third detection result information corresponding to the SIP message according to the conversion abnormality of the SIP message, and send the third detection result information to the second electronic device, wherein the first Thirdly, the detection result information carries the abnormal conversion information corresponding to the SIP message.

Corresponding to the above embodiment, as shown in FIG. 6, the embodiment of the present application also provides another link detection device, including:

The receiving unit 601 is used for the second electronic device to receive the first detection request message sent by the third electronic device; the first detection request message carries the identification information of the first electronic device;

A processing unit 602, configured to send at least one SIP message and detection information of the SIP message to the first electronic device;

The receiving unit 601 is further configured to receive detection result information sent by the first electronic device;

The processing unit 602 is further configured to send the detection result information to the third electronic device.

Corresponding to the above embodiment, as shown in FIG. 7, the embodiment of the present application also provides another link detection device, including:

The processing unit 701 is configured for the third electronic device to send a first detection request message to the second electronic device; the first detection request message carries identification information of the first electronic device;

The receiving unit 702 is configured to receive the detection result information sent by the second electronic device.

Corresponding to the foregoing embodiments, the present application further provides an electronic device. FIG. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present invention. The electronic device 800 may include: a processor 801 , a memory 802 and a communication unit 803 . These components communicate through one or more buses. Those skilled in the art can understand that the structure of the server shown in the figure does not constitute a limitation to the embodiment of the present invention. It can be a bus structure or a star structure , may also include more or fewer components than shown, or combine certain components, or have different component arrangements.

Wherein, the communication unit 803 is configured to establish a communication channel, so that the electronic device can communicate with other devices. Receive user data sent by other devices or send user data to other devices.

The processor 801 is the control center of the electronic equipment. It uses various interfaces and lines to connect various parts of the entire electronic equipment, and runs or executes the software programs and/or modules stored in the memory 802, and calls the software programs stored in the memory. data to perform various functions of electronic devices and/or process data. The processor may be composed of an integrated circuit (integrated circuit, IC), for example, may be composed of a single packaged IC, or may be composed of multiple packaged ICs connected with the same function or different functions. For example, the processor 801 may only include a central processing unit (central processing unit, CPU). In the embodiments of the present invention, the CPU may be a single computing core, or may include multiple computing cores.

The memory 802 is used to store the execution instructions of the processor 801. The memory 802 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically Erasable Programmable Read Only Memory (EEPROM), Erasable Programmable Read Only Memory (EPROM), Programmable Read Only Memory (PROM), Read Only Memory (ROM), Magnetic Memory, Flash Memory, Magnetic Disk or Optical Disk.

When the execution instructions in the memory 802 are executed by the processor 801 , the electronic device 800 can execute some or all of the steps in the embodiment shown in FIG. 4 .

In a specific implementation, the present invention also provides a computer storage medium, wherein the computer storage medium may store a program, and the program may include some or all of the steps in each embodiment of the link detection method provided by the present invention when executed. The storage medium may be a magnetic disk, an optical disk, a read-only memory (read-only memory, ROM) or a random access memory (random access memory, RAM), etc.

Those skilled in the art can clearly understand that the technologies in the embodiments of the present invention can be implemented by means of software plus a necessary general-purpose hardware platform. Based on this understanding, the essence of the technical solutions in the embodiments of the present invention or the part that contributes to the prior art can be embodied in the form of software products, and the computer software products can be stored in storage media, such as ROM/RAM , magnetic disk, optical disk, etc., including several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in various embodiments or some parts of the embodiments of the present invention.

For the same and similar parts among the various embodiments in this specification, refer to each other. In particular, for the device embodiment and the terminal embodiment, since they are basically similar to the method embodiment, the description is relatively simple, and for relevant parts, please refer to the description in the method embodiment.

Claims (10)

1. A method of link detection, comprising:

the first electronic equipment receives at least one Session Initiation Protocol (SIP) message sent by the second electronic equipment;

obtaining detection information of an SIP message; the detection information of the SIP message is used for indicating the related information of at least one SIP message sent by the second electronic equipment;

detecting whether the received at least one SIP message is abnormal or not according to the received at least one SIP message and the detection information of the SIP message, and generating detection result information;

and sending the detection result information to the second electronic equipment.

2. The method according to claim 1, wherein the detection information of the SIP message includes a transmission number of the SIP message;

the detecting whether the received at least one SIP message has an abnormality according to the received at least one SIP message and the detection information of the SIP message, and generating detection result information includes:

Detecting whether the SIP message has abnormal packet loss according to the number of the received at least one SIP message and the sending number of the SIP message;

if the packet loss abnormality exists, determining the packet loss rate of the SIP messages according to the number of the received at least one SIP message and the sending number of the SIP messages;

and generating first detection result information according to the packet loss rate of the SIP message, wherein the first detection result information comprises the packet loss rate of the SIP message.

3. The method according to claim 2, wherein the detection information of the SIP message includes a transmission time period of the SIP message;

before receiving at least one SIP message sent by the second electronic device, the method further includes:

determining a preset time range for receiving the SIP message according to the sending time period of the SIP message;

the receiving at least one SIP message sent by the second electronic device includes:

and receiving at least one SIP message sent by the second electronic equipment within the preset time range.

4. The method according to claim 1, wherein the detection information of the SIP message includes: checking information corresponding to each SIP message in the at least one SIP message; the check information comprises a message header of an SIP message;

The detecting whether the received at least one SIP message has an abnormality according to the received at least one SIP message and the detection information of the SIP message, and generating detection result information includes:

for each received SIP message in the at least one SIP message, detecting whether the SIP message has a missing exception according to the received SIP message and a message header in the corresponding check information of the SIP message;

if the deletion abnormality exists, generating second detection result information corresponding to the SIP message according to the deletion abnormality of the SIP message, wherein the second detection result information carries information of the deletion abnormality corresponding to the SIP message.

5. The method of claim 4, wherein detecting whether the SIP message has a missing exception according to the received SIP message and a message header in the SIP message correspondence check information comprises:

detecting whether the message header of the received SIP message is consistent with the message header of the SIP message corresponding to the verification information according to the message header of the received SIP message and the message header of the SIP message corresponding to the verification information;

if the message header of the received SIP message is inconsistent with the message header in the corresponding check information of the SIP message, determining that a missing abnormality exists, or

If the message header of the received SIP message is consistent with the message header in the corresponding check information of the SIP message, detecting whether the message body length of the received SIP message is consistent with the message body length of the SIP message recorded in the message header in the check information or not according to the received SIP message and the message header in the corresponding check information of the SIP message;

if the message body length of the received SIP message is inconsistent with the message body length of the SIP message recorded in the message header in the verification information, determining that the missing exception exists.

6. The method of claim 4, wherein the check information comprises data information of a SIP message;

the detecting whether the received at least one SIP message has an abnormality according to the received at least one SIP message and the detection information of the SIP message, and generating detection result information includes:

for each received SIP message in the at least one SIP message, acquiring data information in the received SIP message;

detecting whether the SIP message has conversion abnormality according to the received data information in the SIP message and the data information in the check information corresponding to the SIP message, wherein the conversion abnormality refers to that the SIP message received by the first electronic equipment is the converted SIP message after network address conversion NAT;

If the conversion abnormality exists, third detection result information corresponding to the SIP message is generated according to the conversion abnormality of the SIP message, wherein the third detection result information carries information of the conversion abnormality corresponding to the SIP message.

7. A method of link detection, comprising:

the second electronic equipment receives a first detection request message sent by the third electronic equipment; the first detection request message carries identification information of the first electronic equipment;

sending at least one SIP message and detection information of the SIP message to the first electronic equipment;

receiving detection result information sent by first electronic equipment;

and sending the detection result information to third electronic equipment.

8. A method of link detection, comprising:

the third electronic device sends a first detection request message to the second electronic device; the first detection request message carries identification information of the first electronic equipment;

and receiving detection result information sent by the second electronic equipment.

9. A link detection apparatus, comprising:

the receiving unit is used for receiving at least one SIP message sent by the second electronic equipment by the first electronic equipment;

The acquisition unit is used for acquiring detection information of the SIP message; the detection information of the SIP message is used for indicating the related information of at least one SIP message sent by the second electronic equipment;

the processing unit is used for detecting whether the received at least one SIP message is abnormal or not according to the received at least one SIP message and the detection information of the SIP message;

generating detection result information according to whether the received at least one SIP message is abnormal or not, and sending the detection result information to the second electronic equipment.

10. An electronic device, comprising: a processor and a memory storing a computer program which, when executed, causes the electronic device to perform the method of any one of claims 1-6 or 7 or 8.