CN115914541A

CN115914541A - Video conference access method, system, electronic device and storage medium

Info

Publication number: CN115914541A
Application number: CN202211271804.6A
Authority: CN
Inventors: 张届新; 林志华; 陈乐贤; 方鸣; 余照熠
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2022-10-18
Filing date: 2022-10-18
Publication date: 2023-04-04

Abstract

The application provides a video conference access method, a video conference access device, electronic equipment and a storage medium. The method comprises the following steps: the method comprises the following steps that under the scene that an intra-environment user has a requirement for accelerating access to overseas information, an intra-environment first terminal initiates an MCU of a video conference; the method comprises the steps that an indoor first terminal receives a TCP SYN request message which is initiated by an oversea first terminal and joins in a video conference, wherein the TCP SYN request message comprises an oversea first terminal IP of the oversea first terminal; the indoor first terminal returns SYN ACK message to the overseas first terminal; the domestic second terminal detects that the target IP in the SYN ACK message is matched with the IP of the overseas first terminal, and transmits the SYN ACK message to the overseas first terminal; and the overseas first terminal returns a TCP ACK message to the domestic first terminal so as to establish a TCP connection access video conference. The method and the device can meet the requirement that overseas staff users can stably access the cross-border video conference initiated by the internal staff users under the scene that the internal staff users need to access the overseas information resources in an accelerated mode.

Description

Video conference access method, system, electronic device and storage medium

Technical Field

The present application relates to the field of communications technologies, and in particular, to a video conference access method, a system, an electronic device, and a storage medium.

Background

At present, when a user has an overseas accelerated access requirement, overseas branch users of the user also have a cross-border video conference access requirement.

When an intra-user a calls a video conference, a video conference MCU-a is connected to a CPE (Customer Premise Equipment) -a, and an extra-sea branch user B needs to dial a URL (Uniform Resource Locator) address of the video conference, analyze a destination ip by a DNS (Domain Name System) and initiate a TCP (Transmission Control Protocol) SYN (synchronization) request to the MCU-a. When MCU-a (address is ip-Ma) returns SYN-ACK (Acknowledgement) confirmation message (containing source ip, i.e. ip-Ma) to overseas branch user B (destination ip-B) via CPE-a, CPE-a detects that the destination ip address Of the message is overseas, and then routes the message strategy to overseas POP (Point Of Presence, point Of network). The overseas POP performs NAT (Network Address Translation) on the source ip (ip-Ma), converts the source ip (ip-Ma) into an overseas POP Address ip-p, and then transmits the message to the user B. When the user B replies the ACK message, the destination ip is changed to the overseas POP ip instead of the ip-Ma of the original MCU-a, so that the third TCP handshake fails, namely the TCP connection between the overseas user B and the MCU-a fails, and the overseas branch user cannot access the video conference initiated by the user A in the home.

Disclosure of Invention

The technical problem to be solved in the embodiments of the present application is to provide a video conference access method, system, electronic device, and storage medium, so as to ensure that an overseas user stably accesses a video conference initiated by an internal user while accelerating access to overseas information.

In a first aspect, an embodiment of the present application provides a video conference access method, where the method includes:

a first terminal in an intra-home first terminal initiates an MCU (Multi Control Unit) of a video conference under a scene that an intra-home user has a demand for accelerating access to overseas information;

the indoor first terminal receives a TCP SYN request message which is initiated by an overseas first terminal and joins the video conference, wherein the TCP SYN request message comprises an overseas first terminal IP of the overseas first terminal;

the indoor first terminal returns a SYN ACK message to the outdoor first terminal;

when the SYN ACK message passes through an indoor second terminal, the indoor second terminal detects whether a target IP in the SYN ACK message is matched with an outdoor first terminal IP when the outdoor first terminal initiates TCP SYN within threshold time;

if the SYN ACK message is matched with the foreign first terminal, the SYN ACK message is routed to a local internet outlet and transmitted to the foreign first terminal;

and the overseas first terminal returns a TCP ACK message to the domestic first terminal through the Internet outlet so as to establish TCP connection to access the video conference.

Optionally, after the inbound second terminal detects whether the destination IP in the SYN ACK message matches the outbound first terminal IP when the outbound first terminal initiates TCP SYN within a threshold time, the method further includes:

and after the inbound second terminal detects that the destination IP in the SYN ACK message is not matched with the destination IP in the threshold time, the outbound first terminal sends the IP of the outbound first terminal when TCP SYN is initiated, the SYN ACK message is routed to the outbound second terminal.

Optionally, after the sending the conference link of the video conference, the method further includes:

the overseas first terminal receives the conference link and analyzes the conference link to obtain the IP address of the domestic first terminal;

and after the overseas first terminal receives the operation of clicking the conference link by the user, sending the TCP SYN request message to the domestic first terminal according to the IP address of the domestic first terminal.

Optionally, after the outbound first terminal sends the TCP SYN request message to the inbound first terminal according to the IP address of the inbound first terminal, the method further includes:

when the TCP SYN request message passes through the domestic second terminal, the domestic second terminal analyzes the TCP SYN request message to obtain the IP of the overseas first terminal and the IP address of the domestic first terminal;

and the domestic second terminal records the IP of the overseas first terminal, the IP address of the domestic first terminal and the message receiving time of the TCP SYN request message.

In a second aspect, an embodiment of the present application provides a video conference access system, where the system includes: an inbound first terminal, an inbound second terminal, and an outbound first terminal,

the indoor first terminal is configured to initiate an MCU (Multi Control Unit) of a video conference by the indoor first terminal in a scene that an indoor user has a demand for accelerating access to overseas information; receiving a TCP SYN request message initiated by an overseas first terminal and joining the video conference, wherein the TCP SYN request message comprises an overseas first terminal IP of the overseas first terminal; returning a SYN ACK message to the overseas first terminal;

the inbound second terminal is configured to detect whether a destination IP in the SYN ACK message matches an outbound first terminal IP when the outbound first terminal initiates TCP SYN within a threshold time when the SYN ACK message passes; if the SYN ACK message is matched with the foreign first terminal, the SYN ACK message is routed to a local internet exit and is transmitted to the foreign first terminal;

the overseas first terminal is configured to return a TCP ACK message to the domestic first terminal through the Internet outlet so as to establish a TCP connection to access the video conference.

Optionally, the system further comprises: the out-of-office second terminal is,

the inbound second terminal is further configured to route the SYN ACK message to the outbound second terminal after detecting the outbound first terminal IP when the outbound first terminal initiates TCP SYN within a threshold time of mismatching the destination IP in the SYN ACK message.

Optionally, the overseas first terminal is further configured to receive the conference link, and parse the conference link to obtain an IP address of the inbound first terminal; and after receiving the operation that the user clicks the conference link, sending the TCP SYN request message to the domestic first terminal according to the IP address of the domestic first terminal.

Optionally, the inbound second terminal is further configured to, when the TCP SYN request message passes through, parse the TCP SYN request message to obtain an outbound first terminal IP of the outbound first terminal and an IP address of the inbound first terminal; and recording the IP of the overseas first terminal, the IP address of the domestic first terminal and the message receiving time of the TCP SYN request message.

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

a processor, a memory, and a computer program stored on the memory and executable on the processor, the processor implementing any of the video conference access methods described above when executing the program.

In a fourth aspect, the present application provides a computer-readable storage medium, where instructions, when executed by a processor of an electronic device, enable the electronic device to perform a video conference access method as described in any one of the foregoing.

Compared with the prior art, the embodiment of the application has the following advantages:

in the embodiment of the application, an MCU of a video conference is initiated by an in-home first terminal in a scene that an in-home user has a requirement for accelerating access to overseas information; the indoor first terminal receives a TCP SYN request message which is initiated by an overseas first terminal and joins the video conference, wherein the TCP SYN request message comprises an overseas first terminal IP of the overseas first terminal; the indoor first terminal returns a SYN ACK message to the outdoor first terminal; when the SYN ACK message passes through an intra-home second terminal, the intra-home second terminal detects whether a target IP in the SYN ACK message is matched with an overseas first terminal IP when the overseas first terminal initiates TCP SYN within threshold time; if the SYN ACK message is matched with the foreign first terminal, the SYN ACK message is routed to a local internet outlet and transmitted to the foreign first terminal; and the overseas first terminal returns a TCP ACK message to the domestic first terminal through the Internet outlet so as to establish TCP connection to access the video conference. In the embodiment of the application, the function of IP judgment is added under the scene of accelerating the access to overseas information, so that the phenomenon that overseas POPs convert source IP NAT into overseas POP address IPs to cause TCP handshake failure and the overseas user cannot access to a video conference initiated by an overseas user is avoided, and thus, cross-country enterprises or enterprises with cross-country service requirements can be met.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the application.

Drawings

Fig. 1 is a flowchart illustrating steps of a video conference access method according to an embodiment of the present application;

fig. 2 is a flowchart illustrating steps of a method for routing a SYN ACK message according to an embodiment of the present disclosure;

fig. 3 is a flowchart illustrating steps of a method for sending a TCP SYN request message according to an embodiment of the present application;

fig. 4 is a flowchart illustrating steps of a message recording method according to an embodiment of the present application;

fig. 5 is a schematic diagram of a video conference access flow provided in an embodiment of the present application;

fig. 6 is a schematic diagram of a networking architecture and traffic flow path according to an embodiment of the present disclosure;

fig. 7 is a schematic structural diagram of a video conference access system according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description.

The terminology used in the embodiments of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the examples of this application and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

Referring to fig. 1, a flowchart illustrating steps of a video conference access method provided in an embodiment of the present application is shown, and as shown in fig. 1, the video conference access method may include: step 101, step 102, step 103, step 104, step 105 and step 106.

Step 101: in a scene that an intra-home user has a demand for accelerating access to overseas information, a first terminal in an intra-home first terminal initiates an MCU (Multi Control Unit) of a video conference.

The method and the device for accessing the overseas information can be applied to the scene that the overseas terminal is stably accessed to the video conference initiated by the domestic terminal under the condition of accelerating the access of the overseas information.

The embodiment of the application can be applied to a video conference access system, and the video conference access system can include: the system comprises an in-home first terminal, an in-home second terminal, an oversea first terminal and an oversea second terminal, wherein the in-home first terminal is a multipoint control system of a video conference system initiated by a user A.

The overseas first terminal refers to a terminal of a video conference initiated by the first terminal to be accessed to the home, and in this example, the overseas first terminal may be a terminal device such as a mobile phone, a computer, a tablet computer, and the like.

The overseas information is overseas website information, i.e., network information published by an overseas server.

It should be understood that the above examples are only examples for better understanding of the technical solutions of the embodiments of the present application, and are not to be taken as the only limitation to the embodiments.

Under the scene that the indoor first terminal has the requirement of accelerating access to the outdoor information, when the indoor first terminal initiates the MCU of the video conference, the conference link of the video conference can be generated, and the terminal which holds the video conference in the indoor sends the conference link of the video conference to the outdoor first terminal, such as mail sending. This implementation can be described in detail in connection with the following procedure.

In this embodiment, the micro control Unit (i.e., MCU) is also called a Single Chip Microcomputer (Single Chip Microcomputer) or a Single Chip Microcomputer, and is configured to appropriately reduce the frequency and specification of a Central Processing Unit (CPU), and integrate peripheral interfaces such as a Memory (Memory), a counter (Timer), a USB (Universal Serial Bus), an a/D converter (i.e., single-instrument analog-to-digital conversion), a UART (Universal Asynchronous Receiver/Transmitter), a PLC (Programmable Logic Controller), a DMA (Direct Memory Access), and even an LCD (Liquid Crystal Display) driving circuit on a Single Chip, so as to form a computer at a Chip level, and perform different combination control for different application occasions.

The conference link refers to the link address of the initiated videoconference. For example, taking the flight conference as an example, when the flight conference is initiated, the flight backend may give a link address, such as https:// meeting.tenient.com/dm/FAzor 9S8LQEx, and at this time, the https:// meeting.tenient.com/dm/FAzor 9S8LQEx is a conference link address of the video conference, and the like.

In this embodiment, after the domestic first terminal initiates the MCU of the video conference, the MCU IP of the local MCU (i.e., the micro control unit IP), the overseas first terminal IP of the overseas terminal, and the conference link of the video conference may also be obtained.

After the conference link address of the video conference, the micro control unit IP of the local micro control unit and the oversea first terminal IP of the oversea terminal are obtained, the conference link address, the micro control unit IP and the oversea first terminal IP can be packaged to generate conference information of the video conference, and then the conference information can be sent to the oversea first terminal.

Step 102 is performed after the MCU within which the video conference is initiated.

Step 102: and the indoor first terminal receives a TCP SYN request message which is initiated by an overseas first terminal and joins the video conference, wherein the TCP SYN request message comprises an overseas first terminal IP of the overseas first terminal.

A TCP SYN request message (i.e., a conference synchronization request message) may be used as a message indicating that an outbound terminal requests access to a video conference. SYN is a handshake signal used when TCP/IP establishes a connection. When a normal TCP network connection is established between a client and a server, the client first sends out a SYN message, the server uses a SYN-ACK response to indicate that the message was received, and finally the client acknowledges with an ACK.

After the conference link of the video conference is transmitted to the outbound terminal, if a user having an outbound first terminal wants to access the video conference, the user may click the conference link of the conference message and synchronously generate a TCP SYN request message, so that the outbound first terminal transmits the TCP SYN request message to the inbound first terminal. For example, after sending a conference link https:// meeting.tent.com/dm/FAzor 9S8LQEx for a video conference to an overseas first terminal, if a user holding the overseas first terminal wants to access the video conference, the conference link may be clicked: https:// meeting.resident.com/dm/FAzor 9S8LQEx, at which time, a TCP SYN request message may be generated at the same time on the overseas first terminal side.

After the outbound first terminal sends the TCP SYN request message to the inbound first terminal, the CPE at the inbound first terminal side (i.e., the inbound second terminal in this example) may receive the TCP SYN request message and simultaneously record the outbound first terminal IP carried in the TCP SYN request message, the IP address of the inbound first terminal, and the message reception time of the TCP SYN request message. This implementation can be described in detail below in conjunction with fig. 4.

Referring to fig. 4, a flowchart illustrating steps of a message recording method provided in an embodiment of the present application is shown, and as shown in fig. 4, the message recording method may include: step 401 and step 402.

Step 401: when the TCP SYN request message passes through the domestic second terminal, the domestic second terminal analyzes the TCP SYN request message to obtain the IP of the oversea first terminal and the IP address of the domestic first terminal.

In this embodiment, after the outbound first terminal sends the TCP SYN request message to the inbound first terminal, when the TCP SYN request message passes through the inbound second terminal, the inbound second terminal may parse the TCP SYN request message to obtain the outbound first terminal IP of the outbound first terminal and the inbound first terminal IP address carried in the TCP SYN request message.

In a specific implementation, after the overseas first terminal receives the conference link, the conference link may be parsed to obtain an IP address of the domestic first terminal, and after the user of the overseas first terminal clicks the conference link, a TCP SYN request message may be sent to the domestic first terminal according to the IP address of the domestic first terminal. This implementation can be described in detail below in conjunction with fig. 3.

Referring to fig. 3, a flowchart illustrating steps of a TCP SYN request message sending method according to an embodiment of the present application is shown, and as shown in fig. 3, the TCP SYN request message sending method may include: step 301 and step 302.

Step 301: and the overseas first terminal receives the conference link and analyzes the conference link to obtain the IP address of the domestic first terminal.

In this embodiment, after the outbound first terminal receives the conference link of the video conference sent by the inbound first terminal, the outbound first terminal may parse the conference link to obtain the IP address of the inbound first terminal. In a specific implementation, the conference link may be resolved in a DNS (Domain Name System) resolution manner to obtain an IP address of the domestic first terminal.

Step 302 is performed after the outbound first terminal receives the conference link and parses the conference link to obtain the IP address of the inbound first terminal.

Step 302: and after the overseas first terminal receives the operation of clicking the conference link by the user, sending the TCP SYN request message to the domestic first terminal according to the IP address of the domestic first terminal.

After the oversea first terminal receives the conference link and analyzes the conference link to obtain the IP address of the domestic first terminal, if the user of the oversea first terminal wants to access the video conference, the user of the oversea first terminal can click the conference link.

And after the overseas first terminal receives the operation of clicking the conference link by the user, sending a TCP SYN request message to the domestic first terminal according to the analyzed IP address of the domestic first terminal.

After the inbound second terminal parses the TCP SYN request message to obtain the outbound first terminal IP of the outbound first terminal and the inbound first terminal IP address, step 402 is performed.

Step 402: and the domestic second terminal records the IP of the overseas first terminal, the IP address of the domestic first terminal and the message receiving time of the TCP SYN request message.

After the CPE parses the outbound first terminal IP of the outbound first terminal and the inbound first terminal IP address, the parsed outbound first terminal IP and inbound first terminal IP address may be recorded, and the message reception time of the TCP SYN request message may be recorded, for example, at the CPE: on day 03 of 10 months 2022, 12: on day 03 of 10 months 2022, 12: 10/03/2022, 12.

After the inbound first terminal receives the TCP SYN request message initiated by the outbound first terminal to join the video conference, step 103 is performed.

Step 103: and the inbound first terminal returns a SYN ACK message to the outbound first terminal.

After the inbound first terminal receives the TCP SYN request message initiated by the outbound first terminal to join the video conference, a SYN ACK message may be returned by the inbound first terminal to the outbound first terminal. Wherein, the SYN ACK message is an acknowledgement message of the TCP SYN request message.

After the inbound first terminal returns the SYN ACK message to the outbound first terminal, step 104 is performed.

Step 104: and when the SYN ACK message passes through an intra-home second terminal, the intra-home second terminal detects whether a target IP in the SYN ACK message is matched with an overseas first terminal IP when the overseas first terminal initiates TCP SYN within threshold time.

In the present embodiment, the time interval threshold refers to a preset threshold for determining whether or not a time interval indicating that the outbound first terminal accesses the video conference and a time at which the TCP SYN request message transmitted by the outbound first terminal is received time out. In this example, the time interval threshold may be 4 minutes, 8 minutes, and the like, and specifically, a specific value of the time interval threshold may be determined according to a traffic demand, which is not limited in this embodiment.

After the inbound first terminal returns the SYN ACK message to the outbound first terminal, when the SYN ACK message passes through the inbound second terminal, the inbound second terminal may detect whether the destination IP in the SYN ACK message matches the outbound first terminal IP when the outbound first terminal initiates the TCP SYN within the threshold time. For example, as shown in fig. 5, a deep packet inspection module is newly added in the SD-WAN CPE-a gateway of the domestic user a: and identifying and recording fixed field information in URL-a and a source IP address (i.e. IP-B) in TCP SYN messages dialed by a overseas user B entering a WAN port, and identifying a target IP of SYN-ACK messages returned by the MCU-a in the corresponding URL-a. An ip address judgment module for newly adding an object in the CPE-a gateway: and judging whether the destination IP of the SYN-ACK message returned by the MCU-a received by the CPE-a LAN port is matched with the source IP address (IP-B) in the TCP SYN message when the overseas user B dials the video conference URL-a called by the user A within delta t (namely threshold time).

After the inbound second terminal detects that the destination IP in the SYN ACK message does not match the outbound first terminal IP within the threshold time, the SYN ACK message may be routed to the outbound second terminal. The implementation can be described in detail as follows in conjunction with fig. 2.

Referring to fig. 2, a flowchart illustrating steps of a SYN ACK message routing method provided in an embodiment of the present application is shown, and as shown in fig. 2, the SYN ACK message routing method may include: step 201.

Step 201: and after the inbound second terminal detects that the destination IP in the SYN ACK message is not matched with the destination IP in the threshold time, the outbound first terminal sends the IP of the outbound first terminal when TCP SYN is initiated, the SYN ACK message is routed to the outbound second terminal.

In this embodiment, after the inbound second terminal detects that the destination IP in the SYN ACK message does not match the foreign first terminal IP when the foreign first terminal initiates TCP SYN within the threshold time, the SYN ACK message is routed to the foreign second terminal (i.e., the foreign POP).

Step 105 is performed after the inbound second terminal detects that the destination IP in the SYN ACK message matches the outbound first terminal IP when the outbound first terminal initiated TCP SYN within a threshold time.

Step 105: and if the SYN ACK message is matched with the foreign terminal, the SYN ACK message is routed to a local internet outlet and transmitted to the foreign first terminal.

After the inbound second terminal detects that the destination IP in the SYN ACK message matches the outbound first terminal IP within a threshold time, the inbound second terminal may route the SYN ACK message to a local Internet outlet (i.e., the Internet) for transmission to the outbound first terminal.

Step 106 is performed after routing the SYN ACK message to the local internet outlet for transmission to the outbound first terminal.

Step 106: and the overseas first terminal returns a TCP ACK message to the domestic first terminal through the Internet outlet so as to establish TCP connection to access the video conference.

After the SYN ACK message is routed to the local internet outlet and transmitted to the outbound first terminal, the outbound first terminal may return a TCP ACK message to the inbound first terminal through the internet outlet to establish a TCP connection access video conference.

In the embodiment of the application, the function of IP judgment is added under the scene of accelerating access to overseas information, so that the situation that a source IP NAT is converted into an overseas POP address IP by an overseas POP is avoided, TCP (transmission control protocol) handshake failure is caused, overseas users cannot access to a video conference initiated by internal users, and therefore, cross-country enterprises or enterprises with cross-country service requirements can be met, under the scene that internal employee users need accelerating access to overseas information resources, and meanwhile, the external employee users can stably access to a cross-border video conference initiated by the internal employee users

The above technical solution of the embodiment of the present application can be described in detail with reference to fig. 5 and 6 as follows.

Fig. 5 shows a schematic diagram of a video conference access flow provided by an embodiment of the present application. Fig. 6 illustrates a networking architecture and a traffic flow diagram provided in an embodiment of the present application.

As shown in fig. 5, a deep packet inspection module is added in the SD-WAN CPE-a gateway: and identifying and recording fixed field information in user A convening conference URL-a and a source ip address (ip-B) in TCP SYN message dialed by overseas user B entering through a WAN port, and identifying target ip of SYN-ACK message returned by MCU-a in corresponding URL-a. The IP address judgment module for newly adding the target in the CPE-a gateway: and judging whether the destination ip of the SYN-ACK message returned by the MCU-a received by the CPE-a LAN port is matched with URL-a of the video conference called by the user A by the user B in delta t overseas or not, and initiating a source ip address (ip-B) in the TCP SYN message when the URL-a is called by the user A. If yes, CPE-a sends SYN-ACK message returned by MCU-a to user B through Internet outlet; and the user B returns an ACK message to the MCU-a through the Internet, so that the TCP connection is successfully established, and finally the user B is accessed to the video conference. If not, i.e., does not match ip or ip match but the time of receipt exceeds Δ t (i.e., the time interval threshold in this example), the message is routed to the overseas POP egress.

As shown in fig. 6, in a scenario where the domestic user a has a requirement for accelerating access to an overseas website, after the domestic user a initiates a video conference, a specific flow of video conference access may be as shown in fig. 8:

1. a domestic user A calls a video conference and sends a conference URL-a to participants;

2. the overseas participant user B dials in the video conference URL-a, and at the moment, sends TCP SYN (source ip: ip-B, destination ip: ip-Ma) to the MCU-a;

3. CPE-a gateway record for user a: fixed characters in URL-a, SYN message receiving time t1 and source ip: ip-b of SYN in URL-a, and then forwarding the SYN message to MCU-a;

4. the MCU-a returns SYN-ACK (source ip: ip-Ma, destination ip: ip-b);

5. after receiving the SYN-ACK message returned by the MCU-a, the CPE-a executes the following operations:

a) Packet depth detection: detecting and identifying a target ip of a SYN-ACK message returned by the MCU-a;

b) And (3) judging: whether the destination ip of the SYN-ACK message in the received URL-a is matched with the source ip address in the TCP SYN message when a user B outside the sea within delta t dials into the video conference URL-a called by the user A or not;

c) Routing strategy: if the message is matched with the Internet exit, the message is routed to the local Internet exit and transmitted to the user B; (ii) a If the judgment condition is not met, executing the step 9;

6. the user B returns TCP ACK ((source ip: ip-B, destination ip: ip-Ma)) to the MCU-a through Internet routing;

7. TCP connection is successfully established;

8. the overseas user B accesses the video conference communication;

9. the message returned by MCU-a is routed to the overseas POP.

According to the embodiment of the application, 2 functional modules are additionally arranged on the SD-WAN CPE gateway network element, the corresponding service flow is optimized, overseas access acceleration of SD-WAN domestic users is realized, overseas users can be stably accessed to domestic summoned video conferences, the user viscosity is enhanced, and the integral competitiveness of SD-WAN overseas accelerated access and cross-border video conference services of operators is enhanced.

According to the video conference access method provided by the embodiment of the application, the MCU of the video conference is initiated by the first terminal in the environment under the scene that the indoor user has the requirement of accelerating the access to the overseas information; the indoor first terminal receives a TCP SYN request message which is initiated by an overseas first terminal and joins the video conference, wherein the TCP SYN request message comprises an overseas first terminal IP of the overseas first terminal; the indoor first terminal returns a SYN ACK message to the outdoor first terminal; when the SYN ACK message passes through an indoor second terminal, the indoor second terminal detects whether a target IP in the SYN ACK message is matched with an outdoor first terminal IP when the outdoor first terminal initiates TCP SYN within threshold time; if the SYN ACK message is matched with the foreign first terminal, the SYN ACK message is routed to a local internet outlet and transmitted to the foreign first terminal; and the overseas first terminal returns a TCP ACK message to the domestic first terminal through the Internet outlet so as to establish TCP connection to access the video conference. The embodiment of the application adds the function of IP judgment under the scene of accelerating access to overseas information to avoid the occurrence of the condition that an overseas POP converts a source IP NAT into an overseas POP address IP, which causes TCP handshake failure and prevents overseas users from accessing a video conference initiated by an internal user, thereby being capable of meeting cross-country enterprises or enterprises with cross-country service requirements.

Referring to fig. 7, a schematic structural diagram of a video conference access system provided in an embodiment of the present application is shown, and as shown in fig. 7, the video conference access system 700 may include: an inbound first terminal 710, an inbound second terminal 720 and an outbound first terminal 730,

the first indoor terminal is configured to initiate an MCU (Multi Control Unit) of a video conference under a scene that an indoor user has a requirement for accelerating access to overseas information; receiving a TCP SYN request message initiated by an overseas first terminal and joining the video conference, wherein the TCP SYN request message comprises an overseas first terminal IP of the overseas first terminal; returning a SYN ACK message to the overseas first terminal;

the inbound second terminal is configured to detect whether a destination IP in the SYN ACK message is matched with an outbound first terminal IP when the outbound first terminal initiates TCP SYN within threshold time when the SYN ACK message passes through; if the SYN ACK message is matched with the foreign first terminal, the SYN ACK message is routed to a local internet outlet and transmitted to the foreign first terminal;

Optionally, the system further comprises: the overseas second terminal is connected to the first terminal,

the inbound second terminal is further configured to route the SYN ACK message to an outbound second terminal after the outbound first terminal IP when the outbound first terminal initiates TCP SYN within a time of detecting that a destination IP in the SYN ACK message does not match a threshold value.

According to the video conference access system provided by the embodiment of the application, the MCU of the video conference is initiated by the first in-home terminal in the scene that the in-home user has the requirement of accelerating the access to the overseas information; the indoor first terminal receives a TCP SYN request message which is initiated by an oversea first terminal and joins in the video conference, wherein the TCP SYN request message comprises an oversea first terminal IP of the oversea first terminal; the indoor first terminal returns a SYN ACK message to the outdoor first terminal; when the SYN ACK message passes through an indoor second terminal, the indoor second terminal detects whether a target IP in the SYN ACK message is matched with an outdoor first terminal IP when the outdoor first terminal initiates TCP SYN within threshold time; if the SYN ACK message is matched with the foreign first terminal, the SYN ACK message is routed to a local internet exit and is transmitted to the foreign first terminal; and the overseas first terminal returns a TCP ACK message to the domestic first terminal through the Internet outlet so as to establish TCP connection to access the video conference. The embodiment of the application adds the function of IP judgment under the scene of accelerating access to overseas information to avoid the occurrence of the condition that an overseas POP converts a source IP NAT into an overseas POP address IP, which causes TCP handshake failure and prevents overseas users from accessing a video conference initiated by an internal user, thereby being capable of meeting cross-country enterprises or enterprises with cross-country service requirements.

An embodiment of the present application further provides an electronic device, including: a memory, a processor and a computer program stored on the memory and executable on the processor, the computer program when executed by the processor implementing the video conference access method described above.

Fig. 8 is a schematic structural diagram of an electronic device 800 according to an embodiment of the present invention. As shown in fig. 8, electronic device 800 includes a Central Processing Unit (CPU) 801 that may perform various appropriate actions and processes in accordance with computer program instructions stored in a Read Only Memory (ROM) 802 or computer program instructions loaded from a storage unit 808 into a Random Access Memory (RAM) 803. In the RAM803, various programs and data required for the operation of the electronic apparatus 800 can also be stored. The CPU801, ROM802, and RAM803 are connected to each other via a bus 804. An input/output (I/O) interface 805 is also connected to bus 804.

A number of components in the electronic device 800 are connected to the I/O interface 805, including: an input unit 806, such as a keyboard, a mouse, a microphone, and the like; an output unit 807 such as various types of displays, speakers, and the like; a storage unit 808, such as a magnetic disk, optical disk, or the like; and a communication unit 809 such as a network card, modem, wireless communication transceiver, etc. The communication unit 809 allows the electronic device 800 to exchange information/data with other devices through a computer network such as the internet and/or various telecommunication networks.

The various processes and processes described above may be performed by processing unit 801. For example, the methods of any of the above embodiments may be implemented as a computer software program tangibly embodied on a computer-readable medium, such as storage unit 808. In some embodiments, part or all of the computer program can be loaded and/or installed onto the electronic device 800 via the ROM802 and/or the communication unit 809. When loaded into RAM803 and executed by CPU801, a computer program may perform one or more of the actions of the methods described above.

Additionally, an embodiment of the present application further provides a computer-readable storage medium, on which a computer program is stored, where the computer program is executed by a processor to implement the video conference access method described above.

The embodiments in the present specification are all described in a progressive manner, and each embodiment focuses on differences from other embodiments, and portions that are the same and similar between the embodiments may be referred to each other.

As will be appreciated by one of skill in the art, embodiments of the present application may be provided as a method, apparatus, or computer program product. Accordingly, embodiments of the present application may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, embodiments of the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.

Embodiments of the present application are described with reference to flowchart illustrations and/or block diagrams of methods, terminals (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flowchart illustrations and/or block diagrams, and combinations of flows and/or blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing terminal to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing terminal to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.

These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.

While preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application.

Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising a … …" does not exclude the presence of another identical element in a process, method, article, or terminal that comprises the element.

The video conference access method, the video conference access device, the electronic device and the computer-readable storage medium provided by the present application are introduced in detail, and specific examples are applied in the present document to explain the principles and embodiments of the present application, and the descriptions of the above embodiments are only used to help understand the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A method for video conference access, the method comprising:

2. The method of claim 1, wherein after the inbound second terminal detecting whether the destination IP in the SYN ACK message matches the outbound first terminal IP when the outbound first terminal initiated TCP SYN within a threshold time, further comprising:

3. The method of claim 1, wherein after the sending the conference link for the video conference, further comprising:

the oversea first terminal receives the conference link and analyzes the conference link to obtain an IP address of the domestic first terminal;

4. The method according to claim 3, further comprising, after the outbound first terminal sends the TCP SYN request message to the inbound first terminal according to the IP address of the inbound first terminal, the method further comprising:

5. A video conference access system, the system comprising: an inbound first terminal, an inbound second terminal, and an outbound first terminal,

the indoor first terminal is configured to initiate an MCU (Multi Control Unit) of the video conference under a scene that an indoor user has a demand for accelerating access to overseas information; receiving a TCP SYN request message initiated by an overseas first terminal and joining the video conference, wherein the TCP SYN request message comprises an overseas first terminal IP of the overseas first terminal; returning a SYN ACK message to the overseas first terminal;

6. The system of claim 5, further comprising: the out-of-office second terminal is,

7. The system of claim 1,

the overseas first terminal is also configured to receive the conference link and analyze the conference link to obtain an IP address of the domestic first terminal; and after receiving the operation that the user clicks the conference link, sending the TCP SYN request message to the domestic first terminal according to the IP address of the domestic first terminal.

8. The system of claim 7,

the inbound second terminal is also configured to analyze the TCP SYN request message when the TCP SYN request message passes through so as to obtain an outbound first terminal IP of the outbound first terminal and an IP address of the inbound first terminal; and recording the IP of the overseas first terminal, the IP address of the domestic first terminal and the message receiving time of the TCP SYN request message.

9. An electronic device, comprising:

a processor, a memory, and a computer program stored on the memory and executable on the processor, the processor implementing the video conference access method of any of claims 1 to 4 when executing the program.

10. A computer readable storage medium, wherein instructions in the storage medium, when executed by a processor of an electronic device, enable the electronic device to perform the video conference access method of any of claims 1 to 4.