CN109787873B

CN109787873B - Many-to-many network access communication method and device

Info

Publication number: CN109787873B
Application number: CN201910100767.4A
Authority: CN
Inventors: 张玉刚; 李红雨; 王艳辉; 杨春晖
Original assignee: Visionvera Information Technology Co Ltd
Current assignee: Visionvera Information Technology Co Ltd
Priority date: 2019-01-31
Filing date: 2019-01-31
Publication date: 2021-06-29
Anticipated expiration: 2039-01-31
Also published as: CN109787873A

Abstract

The embodiment of the application provides a method and a device for many-to-many network access communication, wherein the method and the device are applied to a video network, and data exchange between different video clients and different video servers can be realized by binding a plurality of main virtual terminals in a video network server with a plurality of video clients and a plurality of video servers one by one; the binding relationship is generated between the plurality of first sub-virtual terminals in the FeiMa server and the user server respectively, and the binding relationship is generated between the plurality of second sub-virtual terminals in the FeiMa client and the user terminal respectively, so that the purposes that the plurality of user terminals can access different IP service private networks and the video network, the Internet and the like through one set of network at the same time can be realized, and the expenses of network deployment and the waste of resources are greatly reduced.

Description

Many-to-many network access communication method and device

Technical Field

The present application relates to the field of video networking technologies, and in particular, to a method and an apparatus for many-to-many network access communication.

Background

With the rapid development of network technologies, bidirectional communications such as video conferences and video teaching are widely popularized in the aspects of life, work, learning and the like of users.

Currently, video networking services are widely popularized nationwide, and high-definition video interaction technology of video networking plays a significant role in government departments and other industries. The video networking adopts the most advanced real-time high-definition video exchange technology in the world, realizes the real-time transmission of the high-definition video in the whole network which can not be realized by the Internet at present, integrates dozens of services such as high-definition video conferences, video monitoring, remote training, intelligent monitoring and analysis, emergency command, video telephones, live broadcast, television mails, information distribution and the like on a system platform, and realizes the real-time interconnection and intercommunication of high-definition quality video communication through various terminal devices. But these applications are limited to video networking.

In the prior art, the video network and the internet are independent, and if a plurality of users want to access IPv4 networks such as the video network, the internet, an IP private network and the like at the same time, a plurality of sets of networks need to be deployed respectively, the deployment is complex, and the waste of resources is caused.

Disclosure of Invention

In view of the above, embodiments of the present application are proposed to provide a method for many-to-many network communication and a corresponding apparatus for many-to-many network communication that overcome or at least partially solve the above problems.

In order to solve the above problem, an embodiment of the present application discloses a many-to-many network access communication method, where the method is applied to a video network, where the video network includes a video network server, a plurality of video linnet clients and a plurality of video linnet servers that are respectively connected to the video network server, a plurality of user terminals connected to the video linnet clients, and a plurality of user servers connected to the video linnet servers, the method includes:

the cat watching server receives an internet response data packet sent by a user server through an internet protocol; the Internet response data packet comprises first address information of the user server, a first channel identifier corresponding to the first address information and second address information of a target user terminal;

the Internet response data packet is packaged into a video networking response data packet by the video networking server side;

the cat viewing server side determines a target first sub-virtual terminal corresponding to the first channel identifier according to the first channel identifier;

the cat viewing server adds the terminal number of the target first sub-virtual terminal to the video networking response data packet;

the cat viewing server side sends the video networking response data packet to the video networking server by using the target first sub-virtual terminal; the video networking server is used for determining a target video networking client connected with the target user terminal according to the second address information and sending the video networking response data packet to the target video networking client; and the target cat-connected client is used for unpacking and restoring the video networking response data packet into an internet response data packet and sending the internet response data packet to the target user terminal.

Optionally, the cat viewing server is connected to the plurality of user servers through a switch; the step that the VIT server receives the Internet response data packet sent by the user server through the Internet protocol comprises the following steps:

the switch is used for receiving a first internet response data packet sent by the user server; wherein the first internet response packet includes first address information of the user server;

the switch is used for adding a first channel identifier corresponding to the first address information into the first internet response data packet according to the first address information and generating a second internet response data packet;

and the cat viewing server receives a second internet response data packet sent by the switch through an internet protocol.

Optionally, the step of encapsulating the internet response data packet into the internet response data packet by the cat-view server includes:

and the cat viewing server adds a video networking packet header based on a video networking protocol outside the internet response data packet and encapsulates the packet header into a video networking response data packet.

Optionally, a first database for managing a plurality of first sub-virtual terminals is arranged in the cat viewing server, and one first sub-virtual terminal and one user server are in a binding state;

a second database for managing a plurality of second sub-virtual terminals is arranged in the combined modem client, and the second sub-virtual terminals can randomly generate a binding relationship with one user terminal;

in the second database, the first sub-virtual terminal is associated with one of the second sub-virtual terminals.

Optionally, the step that the target cat-view client is configured to unpack the internet-of-view response data packet and restore the internet-of-view response data packet to an internet response data packet, and send the internet response data packet to the target user terminal includes:

the target combined video modem client is used for determining a target second sub-virtual terminal which is mutually associated with the target first sub-virtual terminal from the second database according to the terminal number of the target first sub-virtual terminal on the video networking response data packet;

the target combined-view cat client is used for acquiring a second channel identifier on the target second sub-virtual terminal;

the target cat-connected client is used for unpacking and restoring the internet response data packet into an internet response data packet;

and the target cat-viewing client sends the internet response data packet to a target user terminal corresponding to the second channel identifier.

Optionally, the first sub-virtual terminal includes two status flag bits, one status flag bit is used to identify an operation status of the target first sub-virtual terminal, and the other status flag bit is used to identify a connection status of the target first sub-virtual terminal and the video network server; the method further comprises the following steps:

the cat viewing server periodically checks the current state of the target first sub-virtual terminal; wherein the current state comprises a running state and a connection state;

and the cat watching server updates the two state flag bits of the target first sub-virtual terminal in the first database aiming at the current state.

Optionally, before the step of receiving, by the cat viewing server, an internet response packet sent by the user server through an internet protocol, the method further includes:

the cat watching server side receives a video networking data packet sent by the video networking server by using the first sub virtual terminal; the network data packet is converted by the target network modem client from the network data packet sent by the target user terminal, and comprises first address information of the target user server; the video networking server is used for determining a video networking server side connected with the target user server according to the first address information and sending the video networking data packet to the video networking server side;

the cat viewing server unpacks the internet-of-view data packet and restores the internet-of-view data packet into an internet data packet;

and the cat viewing server sends the unpacked and restored internet data packet to the target user server through an internet protocol.

In order to solve the above problem, the embodiment of the present application further discloses a device of many-to-many networking communication, the device is applied to in the video networking, the video networking includes the video networking server, with a plurality of video networking clients and a plurality of video networking server that the video networking server connects respectively, and, with a plurality of user terminals that the video networking client connects, with a plurality of user servers that the video networking server is connected, the video networking server includes:

the Internet response data packet receiving module is used for receiving an Internet response data packet sent by the user server through an Internet protocol; the Internet response data packet comprises first address information of the user server, a first channel identifier corresponding to the first address information and second address information of a target user terminal;

the video networking response data packet packaging module is used for packaging the Internet response data packet into a video networking response data packet;

a first sub-virtual terminal determining module, configured to determine, according to the first channel identifier, a target first sub-virtual terminal corresponding to the first channel identifier;

the virtual terminal number adding module is used for adding the terminal number of the target first sub-virtual terminal to the video networking response data packet;

the video networking response data packet sending module is used for sending the video networking response data packet to the video networking server by utilizing the target first sub-virtual terminal; the video networking server is used for determining a target video networking client connected with the target user terminal according to the second address information and sending the video networking response data packet to the target video networking client; and the target cat-connected client is used for unpacking and restoring the video networking response data packet into an internet response data packet and sending the internet response data packet to the target user terminal.

An embodiment of the present application further provides an apparatus, including:

one or more processors; and

one or more machine-readable media having instructions stored thereon, which when executed by the one or more processors, cause the apparatus to perform one or more of the methods of embodiments of the present application.

Embodiments of the present application also provide one or more machine-readable media having instructions stored thereon, which when executed by one or more processors, cause the processors to perform one or more of the methods described in embodiments of the present application.

The embodiment of the application has the following advantages:

the method and the system have the advantages that the characteristics of the video network are applied, and the data exchange between different video clients and different video servers can be realized by binding the plurality of main virtual terminals with the plurality of video clients and the plurality of video servers one by one through the plurality of main virtual terminals in the video network server; the binding relationship is generated between a plurality of first sub-virtual terminals in the FeiMa server and the user server respectively, and the binding relationship is generated between a plurality of second sub-virtual terminals in the FeiMa client and the user terminal respectively, so that the purposes that a plurality of user terminals can access different IP service private networks through one set of network at the same time, the video networking, the Internet and the like can be realized, and the network deployment cost and the resource waste are greatly reduced;

the method and the device have the advantages that the characteristics of the video network are applied, the second sub-virtual terminal is mutually associated with the first sub-virtual terminal bound with a certain user server, the video network data packet can be directly sent to the user server, and the user server is accessed;

the embodiment of the application applies the characteristics of the video networking, and the video networking server performs data packet conversion, so that the Internet private network can be accessed through the video networking, and the problem that the Internet can not be accessed through the video networking is solved; the video network is used for surfing the internet, so that the utilization rate of the bandwidth of the video network can be improved, the speed of surfing the internet can be greatly improved, and the safety of data transmission in the video network is guaranteed;

the characteristic of the application video networking, the video networking server side periodically looks over the current state at first sub virtual terminal, then aim at the current state in the first database, will first sub virtual terminal two state flag bit updates to this management video networking server side's fortune dimension personnel can in time know every sub virtual terminal state, and do corresponding processing, ensure that first sub virtual terminal can keep normal operating condition, normally run the business, ensured that the user visits the communication stability and the real-time of data transmission of internet proprietary gateway through video networking client, video networking server, this video networking link of video networking server side.

Drawings

FIG. 1 is a networking schematic of a video network of the present application;

FIG. 2 is a schematic diagram of a hardware architecture of a node server according to the present application;

fig. 3 is a schematic diagram of a hardware architecture of an access switch of the present application;

fig. 4 is a schematic diagram of a hardware structure of an ethernet protocol conversion gateway according to the present application;

fig. 5 is a schematic networking diagram of a system for many-to-many network access communication according to an embodiment of the present application;

fig. 6 is a flowchart illustrating steps of a method for many-to-many network communication according to an embodiment of the present application;

fig. 7 is a block diagram illustrating an apparatus for many-to-many network communication according to an embodiment of the present disclosure.

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 video networking is an important milestone for network development, is a real-time network, can realize high-definition video real-time transmission, and pushes a plurality of internet applications to high-definition video, and high-definition faces each other.

The video networking adopts a real-time high-definition video exchange technology, can integrate required services such as dozens of services of video, voice, pictures, characters, communication, data and the like on a system platform on a network platform, such as high-definition video conference, video monitoring, intelligent monitoring analysis, emergency command, digital broadcast television, delayed television, network teaching, live broadcast, VOD on demand, television mail, Personal Video Recorder (PVR), intranet (self-office) channels, intelligent video broadcast control, information distribution and the like, and realizes high-definition quality video broadcast through a television or a computer.

To better understand the embodiments of the present application, the following description refers to the internet of view:

some of the technologies applied in the video networking are as follows:

network Technology (Network Technology)

Network technology innovation in video networking has improved over traditional Ethernet (Ethernet) to face the potentially enormous video traffic on the network. Unlike pure network Packet Switching (Packet Switching) or network Circuit Switching (Circuit Switching), the Packet Switching is adopted by the technology of the video networking to meet the Streaming requirement. The video networking technology has the advantages of flexibility, simplicity and low price of packet switching, and simultaneously has the quality and safety guarantee of circuit switching, thereby realizing the seamless connection of the whole network switching type virtual circuit and the data format.

Switching Technology (Switching Technology)

The video network adopts two advantages of asynchronism and packet switching of the Ethernet, eliminates the defects of the Ethernet on the premise of full compatibility, has end-to-end seamless connection of the whole network, is directly communicated with a user terminal, and directly bears an IP data packet. The user data does not require any format conversion across the entire network. The video networking is a higher-level form of the Ethernet, is a real-time exchange platform, can realize the real-time transmission of the whole-network large-scale high-definition video which cannot be realized by the existing Internet, and pushes a plurality of network video applications to high-definition and unification.

Server Technology (Server Technology)

The server technology on the video networking and unified video platform is different from the traditional server, the streaming media transmission of the video networking and unified video platform is established on the basis of connection orientation, the data processing capacity of the video networking and unified video platform is independent of flow and communication time, and a single network layer can contain signaling and data transmission. For voice and video services, the complexity of video networking and unified video platform streaming media processing is much simpler than that of data processing, and the efficiency is greatly improved by more than one hundred times compared with that of a traditional server.

Storage Technology (Storage Technology)

The super-high speed storage technology of the unified video platform adopts the most advanced real-time operating system in order to adapt to the media content with super-large capacity and super-large flow, the program information in the server instruction is mapped to the specific hard disk space, the media content is not passed through the server any more, and is directly sent to the user terminal instantly, and the general waiting time of the user is less than 0.2 second. The optimized sector distribution greatly reduces the mechanical motion of the magnetic head track seeking of the hard disk, the resource consumption only accounts for 20% of that of the IP internet of the same grade, but concurrent flow which is 3 times larger than that of the traditional hard disk array is generated, and the comprehensive efficiency is improved by more than 10 times.

Network Security Technology (Network Security Technology)

The structural design of the video network completely eliminates the network security problem troubling the internet structurally by the modes of independent service permission control each time, complete isolation of equipment and user data and the like, generally does not need antivirus programs and firewalls, avoids the attack of hackers and viruses, and provides a structural carefree security network for users.

Service Innovation Technology (Service Innovation Technology)

The unified video platform integrates services and transmission, and is not only automatically connected once whether a single user, a private network user or a network aggregate. The user terminal, the set-top box or the PC are directly connected to the unified video platform to obtain various multimedia video services in various forms. The unified video platform adopts a menu type configuration table mode to replace the traditional complex application programming, can realize complex application by using very few codes, and realizes infinite new service innovation.

Networking of the video network is as follows:

the video network is a centralized control network structure, and the network can be a tree network, a star network, a ring network and the like, but on the basis of the centralized control node, the whole network is controlled by the centralized control node in the network.

As shown in fig. 1, the video network is divided into an access network and a metropolitan network.

The devices of the access network part can be mainly classified into 3 types: node server, access switch, terminal (including various set-top boxes, coding boards, memories, etc.). The node server is connected to an access switch, which may be connected to a plurality of terminals and may be connected to an ethernet network.

The node server is a node which plays a centralized control function in the access network and can control the access switch and the terminal. The node server can be directly connected with the access switch or directly connected with the terminal.

Similarly, devices of the metropolitan network portion may also be classified into 3 types: a metropolitan area server, a node switch and a node server. The metro server is connected to a node switch, which may be connected to a plurality of node servers.

The node server is a node server of the access network part, namely the node server belongs to both the access network part and the metropolitan area network part.

The metropolitan area server is a node which plays a centralized control function in the metropolitan area network and can control a node switch and a node server. The metropolitan area server can be directly connected with the node switch or directly connected with the node server.

Therefore, the whole video network is a network structure with layered centralized control, and the network controlled by the node server and the metropolitan area server can be in various structures such as tree, star and ring.

The access network part can form a unified video platform (the part in the dotted circle), and a plurality of unified video platforms can form a video network; each unified video platform may be interconnected via metropolitan area and wide area video networking.

Video networking device classification

1.1 devices in the video network of the embodiment of the present application can be mainly classified into 3 types: servers, switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.). The video network as a whole can be divided into a metropolitan area network (or national network, global network, etc.) and an access network.

1.2 wherein the devices of the access network part can be mainly classified into 3 types: node servers, access switches (including ethernet gateways), terminals (including various set-top boxes, code boards, memories, etc.).

The specific hardware structure of each access network device is as follows:

a node server:

as shown in fig. 2, the system mainly includes a network interface module 201, a switching engine module 202, a CPU module 203, and a disk array module 204;

the network interface module 201, the CPU module 203, and the disk array module 204 all enter the switching engine module 202; the switching engine module 202 performs an operation of looking up the address table 205 on the incoming packet, thereby obtaining the direction information of the packet; and stores the packet in a queue of the corresponding packet buffer 206 based on the packet's steering information; if the queue of the packet buffer 206 is nearly full, it is discarded; the switching engine module 202 polls all packet buffer queues for forwarding if the following conditions are met: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero. The disk array module 204 mainly implements control over the hard disk, including initialization, read-write, and other operations on the hard disk; the CPU module 203 is mainly responsible for protocol processing with an access switch and a terminal (not shown in the figure), configuring an address table 205 (including a downlink protocol packet address table, an uplink protocol packet address table, and a data packet address table), and configuring the disk array module 204.

The access switch:

as shown in fig. 3, the network interface module mainly includes a network interface module (a downlink network interface module 301 and an uplink network interface module 302), a switching engine module 303 and a CPU module 304;

wherein, the packet (uplink data) coming from the downlink network interface module 301 enters the packet detection module 305; the packet detection module 305 detects whether the Destination Address (DA), the Source Address (SA), the packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id) and enters the switching engine module 303, otherwise, discards the stream identifier; the packet (downstream data) coming from the upstream network interface module 302 enters the switching engine module 303; the data packet coming from the CPU module 204 enters the switching engine module 303; the switching engine module 303 performs an operation of looking up the address table 306 on the incoming packet, thereby obtaining the direction information of the packet; if the packet entering the switching engine module 303 is from the downstream network interface to the upstream network interface, the packet is stored in the queue of the corresponding packet buffer 307 in association with the stream-id; if the queue of the packet buffer 307 is nearly full, it is discarded; if the packet entering the switching engine module 303 is not from the downlink network interface to the uplink network interface, the data packet is stored in the queue of the corresponding packet buffer 307 according to the guiding information of the packet; if the queue of the packet buffer 307 is nearly full, it is discarded.

The switching engine module 303 polls all packet buffer queues, which in this embodiment is divided into two cases:

if the queue is from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queued packet counter is greater than zero; 3) obtaining a token generated by a code rate control module;

if the queue is not from the downlink network interface to the uplink network interface, the following conditions are met for forwarding: 1) the port send buffer is not full; 2) the queue packet counter is greater than zero.

The rate control module 208 is configured by the CPU module 204, and generates tokens for packet buffer queues from all downstream network interfaces to upstream network interfaces at programmable intervals to control the rate of upstream forwarding.

The CPU module 304 is mainly responsible for protocol processing with the node server, configuration of the address table 306, and configuration of the code rate control module 308.

Ethernet protocol conversion gateway：

As shown in fig. 4, the apparatus mainly includes a network interface module (a downlink network interface module 401 and an uplink network interface module 402), a switching engine module 403, a CPU module 404, a packet detection module 405, a rate control module 408, an address table 406, a packet buffer 407, a MAC adding module 409, and a MAC deleting module 410.

Wherein, the data packet coming from the downlink network interface module 401 enters the packet detection module 405; the packet detection module 405 detects whether the ethernet MAC DA, the ethernet MAC SA, the ethernet length or frame type, the video network destination address DA, the video network source address SA, the video network packet type, and the packet length of the packet meet the requirements, and if so, allocates a corresponding stream identifier (stream-id); then, the MAC deletion module 410 subtracts MAC DA, MAC SA, length or frame type (2byte) and enters the corresponding receiving buffer, otherwise, discards it;

the downlink network interface module 401 detects the sending buffer of the port, and if there is a packet, obtains the ethernet MAC DA of the corresponding terminal according to the destination address DA of the packet, adds the ethernet MAC DA of the terminal, the MAC SA of the ethernet protocol gateway, and the ethernet length or frame type, and sends the packet.

The other modules in the ethernet protocol gateway function similarly to the access switch.

A terminal:

the system mainly comprises a network interface module, a service processing module and a CPU module; for example, the set-top box mainly comprises a network interface module, a video and audio coding and decoding engine module and a CPU module; the coding board mainly comprises a network interface module, a video and audio coding engine module and a CPU module; the memory mainly comprises a network interface module, a CPU module and a disk array module.

1.3 devices of the metropolitan area network part can be mainly classified into 2 types: node server, node exchanger, metropolitan area server. The node switch mainly comprises a network interface module, a switching engine module and a CPU module; the metropolitan area server mainly comprises a network interface module, a switching engine module and a CPU module.

2. Video networking packet definition

2.1 Access network packet definition

The data packet of the access network mainly comprises the following parts: destination Address (DA), Source Address (SA), reserved bytes, payload (pdu), CRC.

As shown in the following table, the data packet of the access network mainly includes the following parts:

DA

SA

Reserved

Payload

CRC

wherein:

the Destination Address (DA) is composed of 8 bytes (byte), the first byte represents the type of the data packet (such as various protocol packets, multicast data packets, unicast data packets, etc.), there are 256 possibilities at most, the second byte to the sixth byte are metropolitan area network addresses, and the seventh byte and the eighth byte are access network addresses;

the Source Address (SA) is also composed of 8 bytes (byte), defined as the same as the Destination Address (DA);

the reserved byte consists of 2 bytes;

the payload part has different lengths according to different types of datagrams, and is 64 bytes if the datagram is various types of protocol packets, and is 32+1024 or 1056 bytes if the datagram is a unicast packet, of course, the length is not limited to the above 2 types;

the CRC consists of 4 bytes and is calculated in accordance with the standard ethernet CRC algorithm.

2.2 metropolitan area network packet definition

The topology of a metropolitan area network is a graph and there may be 2, or even more than 2, connections between two devices, i.e., there may be more than 2 connections between a node switch and a node server, a node switch and a node switch, and a node switch and a node server. However, the metro network address of the metro network device is unique, and in order to accurately describe the connection relationship between the metro network devices, parameters are introduced in the embodiment of the present application: a label to uniquely describe a metropolitan area network device.

In this specification, the definition of the Label is similar to that of the Label of MPLS (Multi-Protocol Label Switch), and assuming that there are two connections between the device a and the device B, there are 2 labels for the packet from the device a to the device B, and 2 labels for the packet from the device B to the device a. The label is classified into an incoming label and an outgoing label, and assuming that the label (incoming label) of the packet entering the device a is 0x0000, the label (outgoing label) of the packet leaving the device a may become 0x 0001. The network access process of the metro network is a network access process under centralized control, that is, address allocation and label allocation of the metro network are both dominated by the metro server, and the node switch and the node server are both passively executed, which is different from label allocation of MPLS, and label allocation of MPLS is a result of mutual negotiation between the switch and the server.

As shown in the following table, the data packet of the metro network mainly includes the following parts:

DA

SA

Reserved

label (R)

Payload

CRC

Namely Destination Address (DA), Source Address (SA), Reserved byte (Reserved), tag, payload (pdu), CRC. The format of the tag may be defined by reference to the following: the tag is 32 bits with the upper 16 bits reserved and only the lower 16 bits used, and its position is between the reserved bytes and payload of the packet.

Based on the above characteristics of the video networking, one of the core concepts of the embodiments of the present application is provided, and a system, a method, and a device for many-to-many network access communication as described in embodiments 1 to 3 are provided in compliance with a protocol of the video networking, so that a plurality of user terminals can access different private networks for IP services through one set of network at the same time, and the video networking, the internet, and the like can be achieved, thereby greatly reducing the overhead of network deployment and the waste of resources.

Example 1:

as shown in fig. 5, a networking schematic diagram of a many-to-many network communication system according to an embodiment of the present application is shown, where the system may be applied to a video network, where the video network includes a video network server 53, a plurality of video clients 52 and a plurality of video servers 54 respectively connected to the video network server 53, a plurality of user terminals 51 connected to the video clients 52, and a plurality of user servers 55 connected to the video servers 54.

The user terminal 51 in the embodiment of the present application is a terminal, and is a product composed of customized hardware and an operating system and application software running on the customized hardware, and specifically may be a mobile phone, a tablet, a desktop, a notebook computer, and the like.

One cat-view client 52 can be connected to a plurality of user terminals 51 at the same time.

One cat-view server 54 may be connected to a plurality of user servers 55 simultaneously.

The user server 55 is located in the internet and can be regarded as a proprietary gateway for managing the resources of the local area network. For example, the user server 55 may be a private network for judicial services, a private network for public security services, or a private network for national courts.

The video network is located in the second layer of the network protocol layer, is a complete set of network communication protocol system designed for supporting a super-large-scale, high-bandwidth and real-time communication network, can establish addressing and communication between different terminals independently of an IP protocol, realizes a real-time communication network system with quality assurance, and is a large-scale and high-bandwidth real-time switching network communication technology which is in the same level with the IP protocol. The internet of vision is composed of 255 internet of vision servers 53, internet of vision terminals and other auxiliary systems, and the internet of vision client 52 and the internet of vision server 54 must be connected with the internet of vision server 53 to communicate with each other and perform services.

Because the number of the internet-of-view servers 53 in the internet of view is limited, and the number of the associated cat clients 52 and the associated cat servers 54 is far greater than that of the internet-of-view servers 53, generally, one internet-of-view server 53 needs to complete data forwarding between a plurality of the associated cat clients 52 and the associated cat servers 54 at the same time.

In an optional embodiment of the present application, a possible implementation method for the cat-view server 54 to access the internet of view is shown, where the method specifically includes the following steps:

the cat watching server 54 receives a network access invitation message sent by the internet of view server 53; the network access invitation message is generated by the internet of view server 53 when detecting that the associated cat server 54 is accessed, and includes identification information of the associated cat server 54; the internet of view server 53 is configured to send the network access invitation message to the internet of view cat server 54 corresponding to the identification information;

the cat-watching server 54 generates a network access agreement message for the network access invitation message; the network access agreement message includes a plurality of first sub-virtual terminal numbers, and the first sub-virtual terminal numbers carry identification information of the cat viewed server 54;

the cat watching server 54 sends the network access approval message to the cat watching server 53; the internet of view server 53 is configured to generate a binding relationship between the internet of view server 54 and a first master virtual terminal in an idle state, generate a successful network access message, and store the plurality of first sub virtual terminal numbers corresponding to the identification information;

and the cat-eye server 54 receives and displays a successful network access message returned by the internet-of-view server 53 for the network access agreement message.

After the cat-watching server 54 logs in the internet of view, the MAC address and the information of the plurality of internal first sub-virtual terminals are recorded in the server 53 of the internet of view, so as to complete the initialization of the cat-watching server 54 for accessing the network.

The mode of logging in the internet of view by the cat online client 52 refers to the network access mode of the cat online server 54, and after the network access is successful, a binding relationship is generated with a second master virtual terminal in the internet of view server 53, which is not described herein too much.

As can be seen from the above optional embodiments, in order to avoid data confusion and crosstalk, there are also a plurality of main virtual terminals in the network-of-view server 53, the cat-of-view server 54 generates a binding relationship with a first main virtual terminal in an idle state when accessing the network, and similarly, the cat-of-view client 52 also generates a binding relationship with a second main virtual terminal in an idle state in the network-of-view server 53 when accessing the network, so that cross communication between the plurality of cat-of-view clients 52 and the plurality of cat-of-view servers 54 can be realized inside the network-of-view server 53.

For example, the M cat client 52 accessing A, B, C three user terminals 51 may communicate with the J cat server 54 accessing the corporate management service private network and the public certificate service private network at the same time in a certain period, or communicate with the K cat server 54 accessing the public security service private network and the public certificate service private network at the same time in another period, so that the main virtual terminal in the cat server 53 is used as a transmission tool for the data of the internet of view, and the cross communication between the multiple cat clients 52 and the multiple cat servers 54 is realized.

Example 2:

as shown in fig. 6, a flowchart illustrating steps of a method for many-to-many network access communication according to an embodiment of the present application is shown, where the method is applied to a virtual internet, and the method is applied to the virtual internet server 54 shown in fig. 5, and the method specifically includes the following steps:

one cat-view server 54 can be connected to a plurality of user servers 55 at the same time, and is mainly connected to the plurality of user servers 55 through a switch. Because the switch can support a plurality of communication ports, the network system can be divided into more physical network segments, so that the whole network system has higher bandwidth, each communication port corresponds to one bridge, each bridge has a unique channel identifier, the user server 55 is inserted into the communication port through a network cable, and the communication can be connected through the bridge according to the cat server 54. So that an internet response packet sent by the user server 55 enters a bridge of the switch, and is automatically added with the first channel identifier of the bridge.

In the embodiment of the present application, one cat viewing client 52 is also connected to multiple user terminals 51 at the same time, and similarly, the principle that the user terminal 51 is connected to the cat viewing client 52 refers to the above contents, which is not described herein in detail. After an internet data packet sent by the user terminal 51 enters a bridge of a switch connected with the cat client 52, a second channel identifier where the bridge is located is automatically added.

Since one cat viewing client 52 is connected to a plurality of user terminals 51, and one cat viewing server 54 is also connected to a plurality of user servers 55, the plurality of user terminals 51 access the plurality of user servers 55 at the same time, how the cat viewing client 52 forwards the data packets sent by the plurality of user terminals 51 at the same time, and how the cat viewing server 54 sends the data packets to the user server 55 of the correct destination at the same time is a technical problem to be solved by the present application.

In view of the above problem, an optional embodiment of the present application shows that a first database for managing a plurality of first sub-virtual terminals is disposed in the vtcat server 54, and one first sub-virtual terminal is in a binding state with one user server 55;

a second database for managing a plurality of second sub-virtual terminals is arranged in the associated modem client 52, and the second sub-virtual terminals can randomly generate a binding relationship with one user terminal 51;

In a specific implementation, a plurality of users need to access different websites simultaneously, and variables and rations need to be set, in an optional embodiment of the present application, the rations are that a plurality of user servers 55 accessing one associated cat server 54 are bound with different first virtual terminals in the associated cat server 54, and the first virtual terminals implement data forwarding.

And depending on which user the client 52 of the associated cat connects to, it knows that the access destination of the user belongs to the variable, and depending on which second sub-virtual terminal in the client 52 of the associated cat is bound with the user terminal 51, it also belongs to the variable to transmit the data packet sent by the user terminal 51 to the correct destination. Therefore, in the embodiment of the present application, after a second sub-virtual terminal in the associated modem client 52 and a first sub-virtual terminal bound with a certain user server 55 are associated with each other and recorded in the second database, a communication route between the first sub-virtual terminal and the second sub-virtual terminal becomes quantitative, so that the variable is only controlled on the second sub-virtual terminal connected to the user terminal 51.

In order to access a certain user server 55 through the internet of view, the user first sends access information to the target user server 55, and in an optional embodiment of the present application, before the step of receiving, by the internet protocol, the internet response data packet sent by the user server 55 through the internet protocol, the step of receiving, by the add cat server 54, the access information sent by a certain user terminal 51 is shown as a possible implementation step:

the method comprises the following steps: the cat watching server 54 receives the internet-of-video data packet sent by the internet-of-video server 53 by using the first sub-virtual terminal; the internet data packet is converted by the target internet client 52 from an internet data packet sent by a target user terminal 51, and includes first address information of the target user server 55; the video network server 53 is configured to determine, according to the first address information, a video modem server 54 connected with the target user server 55, and send the video network data packet to the video modem server 54;

according to the forwarding characteristic of the video networking, the transmission process of the video networking data packet is as follows:

the client 52 of the cat watching receives an internet data packet sent by the user terminal 51 through an internet protocol; wherein the internet packet includes first address information of the target subscriber server 55,

the cat watching client 52 determines a target first sub-virtual terminal in a binding state with the target user server 55 according to the first address information;

the cat watching client 52 determines a second sub-virtual terminal from the second database according to the target first sub-virtual terminal;

the client 52 of the cat of the union of the vision uses the second sub-virtual terminal to send the data packet of the vision network to the server 53 of the vision network;

the second master virtual terminal in the video network server 53 is configured to receive the video network data packet;

the internet of view server 53 is configured to determine, according to the first address information in the internet of view data packet, a target internet of view server 54 connected to the target user server 55; the target cat-watching server 54 is in a binding state with a first master virtual terminal in the internet-of-video server 53;

the second main virtual terminal is used for sending the video networking data packet to the first main virtual terminal;

the first master virtual terminal is configured to send the internet of view data packet to the target internet of view server 54.

Step two: the cat watching server 54 unpacks the internet data packet to restore the internet data packet;

step three: the cat-view server 54 sends the depacketized and restored internet data packets to the target user server 55 through an internet protocol.

After receiving the internet data packet, the target user server 55 generates a corresponding internet response data packet for the internet data packet, and sends the internet response data packet to the cat look server 54.

Step S601: the cat watching server 54 receives an internet response data packet sent by the user server 55 through an internet protocol; wherein, the internet response data packet includes the first address information of the user server 55, the first channel identifier corresponding to the first address information, and the second address information of the target user terminal 51;

since the cat-view server 54 is connected with the plurality of user servers 55 through the switch; in an alternative embodiment of the present application, the sub-step of the cat-view server 54 receiving the internet response packet sent by the user server 55 through the internet protocol may specifically include:

the switch is configured to receive a first internet response packet sent by the user server 55; wherein the first internet response packet includes first address information of the user server 55;

the vty cat server 54 receives the second internet response packet sent by the switch through the internet protocol.

The channel identifier may be a VLAN identifier.

Step S602: the cat watching server 54 encapsulates the internet response data packet into a cat watching response data packet;

in connection with the above sub-step, the cat view server 54 encapsulates the second internet response packet into a cat view response packet. The specific packaging method can be as follows:

the cat-view server 54 adds a video network packet header based on a video network protocol outside the internet response data packet, and encapsulates the packet header into a video network response data packet.

Step S603: the cat watching server 54 determines a target first sub-virtual terminal corresponding to the first channel identifier according to the first channel identifier;

since a ration in the embodiment of the present application is that a user server 55 is bound to a fixed first sub-virtual terminal in the vty server 54, the bound first sub-virtual terminal also carries a first channel identifier corresponding to the first address information of the user server 55. Therefore, no matter which user server 55 receives the internet response data packet sent by the cat look server 54, by analyzing the first channel identifier on the internet response data packet, the target first sub-virtual terminal corresponding to the internet response data packet can be found to forward the data of the internet response data packet.

Step S604: the cat watching server 54 adds the terminal number of the target first sub-virtual terminal to the response packet of the cat watching network;

after the terminal number of the target first sub-virtual terminal is added to the video networking response data packet, it means that the target first sub-virtual terminal corresponding to the terminal number forwards the video networking response data packet, and when the video networking response data packet is specifically sent, the video networking server 54 replaces the target first sub-virtual terminal to complete an actual hardware sending function.

Step S605: the cat watching server 54 sends the internet of vision response data packet to the internet of vision server 53 by using the target first sub-virtual terminal; the video network server 53 is configured to determine, according to the second address information, a target video modem client 52 to which the target user terminal 51 is connected, and send the video network response data packet to the target video modem client 52; the target cat-view client 52 is configured to unpack the internet-of-view response data packet to restore the internet-of-view response data packet to an internet response data packet, and send the internet response data packet to the target user terminal 51.

Since the first sub-virtual terminal is associated with one of the second sub-virtual terminals, and when the target user terminal 51 accesses the target virtual-associated-cat client 52, the target user terminal will also be bound with one of the second sub-virtual terminals inside the target user terminal, so that the second sub-virtual terminal will also carry the second channel identifier when the target user terminal 51 accesses the target virtual-associated-cat client.

According to the foregoing principle, in an optional embodiment of the present application, the step that the target vtable client 52 is configured to unpack the internet response data packet and restore the internet response data packet to an internet response data packet, and send the internet response data packet to the target user terminal 51 may specifically include:

step four: the target cat-associated client 52 is configured to determine, from the second database, a target second sub-virtual terminal associated with the target first sub-virtual terminal according to the terminal number of the target first sub-virtual terminal on the internet-of-view response packet;

step five: the target cat-viewing client 52 is configured to obtain a second channel identifier on the target second sub virtual terminal;

step six: the target cat-view client 52 is configured to unpack the internet response data packet to restore the internet response data packet;

step seven: and the target cat-watching client 52 sends the internet response data packet to the target user terminal 51 corresponding to the second channel identifier.

In summary, through steps S601 to S605, the embodiment of the present application uses the above-mentioned manner to implement the manner in which a plurality of internet user terminals 51 can access different private IP services through one set of network at the same time, and the manner of video networking, internet, and the like, thereby greatly reducing the overhead of network deployment and the waste of resources. Through the fourth to seventh steps, after the target vtassis client 52 receives the response packet of the vtassis, the second address information of the target user terminal 51 in the response packet of the vtassis is not read, the internet packet can be directly sent to the user server 55 through the vtassis by using the way that the first sub-virtual terminal bound with the user server 55 and the second sub-virtual terminal bound with the user terminal 51 are associated with each other, and the internet response packet returned for the internet packet is sent to the target user terminal 51 through the vtassis, compared with the traditional way of accessing the user server 55 by using the MAC address of the user server 55, the embodiment of the present application further reduces the disassembly of the packet, the time for extracting the address, the occupation of the operating resources of the vtassis server 54 and the vtassis server 52, and the data sending time is shortened, the transmission efficiency is greatly improved, the problem that data crosstalk is easy to occur when the modem server 54 unpacks to obtain the MAC address to send data is avoided, and the probability of correct transmission of the data packet is improved.

The virtual terminal mentioned in the embodiment of the application comprises: the system comprises a first sub-virtual terminal, a second sub-virtual terminal, a first main virtual terminal and a second main virtual terminal. The virtual terminal is a non-real terminal product, and is a virtual object with some key attributes of the terminal (such as information of model, version, MAC address, NUM number, located domain, and the like), a first sub virtual terminal located in the cat-view server 54 is implemented by the cat-view server 54 for its basic function, a second sub virtual terminal located in the cat-view client 52 is implemented by the cat-view client 52 for its basic function, and the first or second main virtual terminal is implemented by the web-view server 53 for its basic function.

In addition, in order to ensure the normal operation of the cat watching server 54 and the stable transmission and reception of data packets, the first sub-virtual terminal includes two status flag bits, one status flag bit is used to identify the operation status of the target first sub-virtual terminal, and the other status flag bit is used to identify the connection status of the target first sub-virtual terminal and the cat watching server 53; in a preferred embodiment of the present application, a possible implementation manner of monitoring the operation state and the connection state of a target first sub virtual terminal in the associated cat server 54 is shown, where the implementation steps are as follows:

the cat watching server 54 periodically checks the current state of the target first sub-virtual terminal; wherein the current state comprises a running state and a connection state;

the cat view server 54 updates the two status flag bits of the target first sub-virtual terminal in the first database according to the current status.

Through the preferred embodiment, operation and maintenance personnel who manage the cat Io server 54 can know the state of each first sub-virtual terminal in time and perform corresponding processing to ensure that the sub-virtual terminals can keep normal working state and normal running service, and communication stability and data transmission real-time performance of a user accessing an internet proprietary gateway through a cat Io client 52, a cat Io server 53 and a cat Io server 54 are guaranteed. In particular implementations, a timer mechanism is provided by the Linux system within the catwalk server 54, such as timed at 1 second intervals, to periodically view the current state of the target first child virtual terminal. After the timer is refreshed, the sub-virtual terminal number and the corresponding state are loaded into the first database in the cat viewing server 54 through the socket Netlink channel, and the two state flag bits of the target first sub-virtual terminal are updated.

It should be noted that, for simplicity of description, the method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the embodiments are not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the embodiments. Further, those skilled in the art will also appreciate that the embodiments described in the specification are presently preferred and that no particular act is required of the embodiments of the application.

Example 3:

as shown in fig. 7, corresponding to the method in embodiment 2, a block diagram of a device for many-to-many network access communication according to an embodiment of the present application is shown, where the device may be applied to a video network, the device is applied to the cat viewing server 54 shown in fig. 5, and the cat viewing server 54 may specifically include the following modules:

an internet response data packet receiving module 701, configured to receive an internet response data packet sent by a user server through an internet protocol; the Internet response data packet comprises first address information of the user server, a first channel identifier corresponding to the first address information and second address information of a target user terminal;

a video networking response data packet encapsulation module 702, configured to encapsulate the internet response data packet into a video networking response data packet;

a first sub-virtual terminal determining module 703, configured to determine, according to the first channel identifier, a target first sub-virtual terminal corresponding to the first channel identifier;

a virtual terminal number adding module 704, configured to add the terminal number of the target first sub-virtual terminal to the video networking response packet;

a video networking response data packet sending module 705, configured to send the video networking response data packet to the video networking server by using the target first sub-virtual terminal; the video networking server is used for determining a target video networking client connected with the target user terminal according to the second address information and sending the video networking response data packet to the target video networking client; and the target cat-connected client is used for unpacking and restoring the video networking response data packet into an internet response data packet and sending the internet response data packet to the target user terminal.

Corresponding to the method in embodiment 2 of the present application, the cat viewing server 54 may specifically include the following modules:

the current state monitoring module is used for periodically checking the current state of the target first sub-virtual terminal; wherein the current state comprises a running state and a connection state;

and a status flag bit updating module, configured to update, in the first database, the two status flag bits of the target first sub-virtual terminal according to the current status.

the video networking data packet receiving module is used for receiving the video networking data packet sent by the video networking server by utilizing the first sub-virtual terminal; the network data packet is converted by the target network modem client from the network data packet sent by the target user terminal, and comprises first address information of the target user server; the video networking server is used for determining a video networking server side connected with the target user server according to the first address information and sending the video networking data packet to the video networking server side;

the video networking data packet reduction module is used for unpacking and reducing the video networking data packet into an Internet data packet;

and the internet data packet sending module is used for sending the unpacked and restored internet data packet to the target user server through an internet protocol.

one or more processors; and

For the device embodiment, since it is basically similar to the method embodiment, the description is simple, and for the relevant points, refer to the partial description of the method embodiment.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are 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, terminal devices (systems), and computer program products according to embodiments of the application. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams 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 terminal to cause a series of operational steps to be performed on the computer or other programmable terminal to produce a computer implemented process such that the instructions which execute on the computer or other programmable terminal 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 an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

The method and the apparatus for many-to-many network access communication provided by the present application are introduced in detail above, and specific examples are applied herein to explain the principle and the implementation of the present application, and the description of the above embodiments is 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 many-to-many network communication method is applied to a video network, the video network comprises a video network server, a plurality of video modem client sides and a plurality of video modem server sides which are respectively connected with the video network server, a plurality of user terminals connected with the video modem client sides, and a plurality of user servers connected with the video modem server sides, wherein the video network server is bound with the plurality of video modem client sides and the plurality of video modem server sides one by using a plurality of main virtual terminals, a plurality of first sub virtual terminals in the video modem server sides respectively generate a binding relationship with the user servers, and a plurality of second sub virtual terminals in the video modem client sides respectively generate a binding relationship with the user terminals, and the method comprises the following steps:

2. The method according to claim 1, wherein the FeiMa server is connected with the plurality of user servers through a switch; the step that the VIT server receives the Internet response data packet sent by the user server through the Internet protocol comprises the following steps:

3. The method according to claim 1, wherein the step of the cat-eye server encapsulating the internet response data packet into a cat-eye response data packet comprises:

4. The method according to claim 1, wherein a first database for managing a plurality of first sub-virtual terminals is arranged in the cat-associated server, and one first sub-virtual terminal is in a binding state with one user server;

5. The method as claimed in claim 4, wherein the step of the target VIC client unpacking the VIC response packet to reduce it to an Internet response packet and sending it to the target user terminal includes:

6. The method according to claim 4, wherein the first sub-virtual terminal comprises two status flag bits, one status flag bit is used for identifying the operation status of the target first sub-virtual terminal, and the other status flag bit is used for identifying the connection status of the target first sub-virtual terminal and the video network server; the method further comprises the following steps:

7. The method as claimed in claim 1, wherein before the step of receiving the internet response packet sent by the user server through the internet protocol, the method further comprises:

8. The utility model provides a device of many-to-many network access communication, its characterized in that, the device is applied to in the video networking, the video networking includes the video networking server, with a plurality of video allied cat customer ends and a plurality of video allied cat server that the video networking server connects respectively, and, with a plurality of user terminal that the video allied cat customer end is connected, with a plurality of user server that the video allied cat server is connected, the video networking server utilizes a plurality of main virtual terminal with a plurality of video allied cat customer ends, a plurality of video allied cat server end one-to-one binding, a plurality of first sub virtual terminal in the video allied cat server end respectively with the user server generates the binding, a plurality of second sub virtual terminal in the video allied cat client respectively with the user terminal generates the binding, the device is applied to the video allied cat server end includes:

9. An apparatus for many-to-many network communication, comprising:

one or more processors; and

one or more machine-readable media having instructions stored thereon that, when executed by the one or more processors, cause the apparatus to perform the method of any of claims 1-7.

10. One or more machine readable media having instructions stored thereon that, when executed by one or more processors, cause the processors to perform the method of any one of claims 1-7.