CN116708081B - Fixed-mobile integrated network communication system and method - Google Patents
Fixed-mobile integrated network communication system and methodInfo
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- CN116708081B CN116708081B CN202310755854.XA CN202310755854A CN116708081B CN 116708081 B CN116708081 B CN 116708081B CN 202310755854 A CN202310755854 A CN 202310755854A CN 116708081 B CN116708081 B CN 116708081B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/22—Arrangements for detecting or preventing errors in the information received using redundant apparatus to increase reliability
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
- H04L12/46—Interconnection of networks
- H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2212/00—Encapsulation of packets
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Abstract
The application discloses a network communication system and method combining fixed and mobile. The system comprises operator edge equipment running in a metropolitan area network, user edge equipment accessing a user local area network according to a target IP address of user service, a first communication link based on a wired network and a second communication link based on a wireless network, wherein the first communication link runs in the metropolitan area network, the second communication link comprises a first virtual expansion local area network tunnel endpoint connected with the user edge equipment, a second virtual expansion local area network tunnel endpoint connected with the operator edge equipment, a virtual expansion local area network tunnel between the first virtual expansion local area network tunnel endpoint and the second virtual expansion local area network tunnel endpoint, and the virtual expansion local area network tunnel is logically isolated from a public network. The application solves the technical problem that the IP address cannot be shared when the fixed network and the mobile network are combined to form the network in the related technology.
Description
Technical Field
The application relates to the technical field of network communication, in particular to a network communication system and method combining fixed and mobile.
Background
With the development of digital economies, users with a need for a fixed IP address have placed higher reliability demands on the operator network. The traditional wired double-link active-standby protection mode can realize the sharing of fixed IP addresses of user services by setting two groups of interconnection addresses, but the mode faces the hidden danger of network interruption caused by the problems that two optical fibers are locally and physically routed in the same way, local side access is the same router, IP metropolitan area network system faults and the like, the repair duration of the wired optical cable faults is difficult to accurately control, and the service safety requirements of users cannot be fully met. If the traditional convergence networking protection mode of the fixed network and the mobile network is adopted, the wired network and the wireless network belong to different physical networks and use different address fields, so that the wired network and the wireless network cannot share the fixed IP address of the user service, and the service use requirement of the user cannot be met.
In view of the above problems, no effective solution has been proposed at present.
Disclosure of Invention
The embodiment of the application provides a network communication system and a network communication method combining fixed and mobile, which at least solve the technical problem that an IP address cannot be shared when a fixed network and a mobile network are combined for networking in the related art.
According to one aspect of the embodiment of the application, a network communication system combining fixed movement is provided, which comprises operator edge equipment operating in a metropolitan area network, user edge equipment accessing a user local area network according to a target IP address of user service, a first communication link based on a wired network and a second communication link based on a wireless network, wherein the first communication link operates in the metropolitan area network, the second communication link comprises a first virtual expansion local area network tunnel endpoint connected with the user edge equipment, a second virtual expansion local area network tunnel endpoint connected with the operator edge equipment, a virtual expansion local area network tunnel between the first virtual expansion local area network tunnel endpoint and the second virtual expansion local area network tunnel endpoint, and the virtual expansion local area network tunnel is logically isolated from a public network.
Optionally, the operator edge device comprises a first gateway connected with the first communication link, a second gateway connected with the second communication link, the user edge device comprises a local area network interface connected with a user local area network, a first wide area network interface connected with the first communication link, and a second wide area network interface connected with the second communication link.
Optionally, the first communication link comprises an optical modem connected with the first wide area network interface, a switch or an optical line terminal connected with the optical modem, and a data center switch connected with the switch or the optical line terminal, wherein the data center switch is also connected to the first gateway.
Optionally, in the second communication link, the first virtual expansion local area network tunnel endpoint comprises user prepositive equipment connected with the second wide area network interface, wherein the user prepositive equipment comprises an internet of things card, the internet of things card comprises identification information for identifying a contracted IP address corresponding to the name of the target data network, the second virtual expansion local area network tunnel endpoint comprises operator receiving and transmitting equipment connected to the second gateway, and a virtual expansion local area network tunnel is constructed between the user prepositive equipment and the operator receiving and transmitting equipment.
Optionally, the user front-end device is configured to connect with a user plane functional entity corresponding to a target base station in a target range after power-on, obtain a subscription IP address corresponding to a target data network name from the user plane functional entity according to the identification information, perform message encapsulation according to the subscription IP address and a local loop back address of the operator transceiver device, and perform message encapsulation according to the subscription IP address and the local loop back address.
Optionally, the traffic priority of the first communication link is higher than the traffic priority of the second communication link.
The operator edge device further comprises a second detection module and a second switching module, wherein the second detection module is used for carrying out network quality analysis and bidirectional forwarding detection on the first communication link to determine whether the first communication link is abnormal, the second switching module is used for switching the uplink traffic transmitted by the operator edge device through the first communication link to the second communication link for transmission when the first communication link is abnormal, switching the uplink traffic transmitted through the second communication link back to the first communication link for transmission when the first communication link is recovered to be normal, and the second switching module is used for carrying out network quality analysis and bidirectional forwarding detection on the first communication link to determine whether the first communication link is abnormal.
According to another aspect of the embodiment of the application, a network communication method applied to fixed-mobile combination of user edge equipment is provided, and the network communication method comprises the steps of accessing a user local area network according to a target IP address of user service, carrying out service traffic transmission with the operator edge equipment through a first communication link based on a wired network, wherein the operator edge equipment and the first communication link operate in a metropolitan area network, switching service traffic to a second communication link based on a wireless network when the first communication link is abnormal, and carrying out service traffic transmission with the operator edge equipment through the second communication link, wherein the second communication link comprises a first virtual expansion local area network tunnel endpoint connected with the user edge equipment, a second virtual expansion local area network tunnel endpoint connected with the operator edge equipment, a virtual expansion local area network tunnel between the first virtual expansion local area network tunnel endpoint and the second virtual expansion local area network tunnel endpoint, and logically isolating the virtual expansion local area network tunnel from a public network.
Optionally, when the first communication link returns to normal, the traffic is switched back to the first communication link, and the traffic is transmitted with the operator edge device through the first communication link.
According to another aspect of the embodiment of the present application, there is also provided a nonvolatile storage medium, where the nonvolatile storage medium includes a stored computer program, and a device where the nonvolatile storage medium is located executes the above-mentioned network communication method of fixed-shift combination by running the computer program.
In the network communication system of the embodiment of the application, the operator edge equipment running in the metropolitan area network and the user edge equipment accessing the user local area network according to the target IP address of the user service carry out service flow transmission through a first communication link based on a wired network and a second communication link based on a wireless network, wherein the first communication link runs in the metropolitan area network, the second communication link is constructed based on a virtual expansion local area network technology and comprises a first virtual expansion local area network tunnel endpoint connected with the user edge equipment, a second virtual expansion local area network tunnel endpoint connected with the operator edge equipment and a virtual expansion local area network tunnel between the first virtual expansion local area network tunnel endpoint and the second virtual expansion local area network tunnel endpoint, and the virtual expansion local area network tunnel is logically isolated from a public network, so that the wireless network becomes access extension of the metropolitan area network through three-layer network, thereby enabling the wired network and the wireless network of the user to share the target IP address of the user service, and effectively solving the technical problem that the IP address cannot be shared when the fixed network and the mobile network are combined in the related technology.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
FIG. 1 is a schematic diagram of an alternative fixed-mobile combined network communication system in accordance with an embodiment of the present application;
FIG. 2 is a schematic diagram of an alternative fixed-mobile combined network communication system in accordance with an embodiment of the present application;
Fig. 3 is a flow chart of an alternative method of network communication with fixed and mobile combinations according to an embodiment of the application.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present application without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and the claims and drawings of the present application are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the application described herein may be implemented in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
For a better understanding of the embodiments of the present application, some nouns or translations of terms that appear during the description of the embodiments of the present application are explained first as follows:
the three-layer network comprises a core layer, a convergence layer and an access layer, and can realize communication across network segments through IP routing and cross a plurality of conflict domains.
The two-layer network comprises a core layer and an access layer, and can realize communication in the same conflict domain through MAC (MEDIA ACCESS Control Address) addressing.
A virtual extended LAN (Virtual Extensible Local Area Network) is a network virtualization technology, which is realized by creating a logic network layer on the existing physical network, and adopts a mode of encapsulating an MAC address into a UDP (User Datagram Protocol ) message, so that exclusive tunneling can be carried out on two-layer traffic through a three-layer network, and parameters such as an IP address, an MAC address and the like in the original data of a user are ensured to be unchanged. The VXLAN network model typically includes the following components:
In VXLAN networks, each virtual network is assigned with a 24-bit unique identifier-VNI for distinguishing VXLAN network segments, only terminals belonging to the same VNI can be communicated in two layers, and terminals of different VNIs are isolated in two layers;
The VTEP (VXLAN Tunnel Endpoints) is a virtual extended local area network tunnel endpoint) which is a communication node in the VXLAN network and is used for finishing the encapsulation and the decapsulation of the VXLAN message;
A virtual expansion local area network tunnel, which is a point-to-point logic channel established between two VTEPs and used for transmitting the message packaged by the VXLAN;
SDN (Software Defined Network ) controller, central point for centralized management and control of VXLAN network, responsible for specifying and configuring VTEP, tunnel, VNI, etc. components and managing traffic route.
UDP is a connectionless-oriented transport layer protocol which does not require connection establishment and maintenance, and therefore has a high transmission speed, but does not guarantee data reliability.
DNN (Data Network Name ), an identifier for supporting network slices. In 5G networks, network slices are used to divide the physical network infrastructure into multiple virtual networks, each identified by a unique DNN, which is used by the 5G core network to route traffic to the appropriate network slice.
UPF (User Plane Function ) an important component in the 5G core network architecture, mainly responsible for the routing and forwarding related functions of user plane packets in the 5G core network.
CE (Customer Edge device)/PE (Provider Edge device)/P (Provider core layer device) are routing roles in a wide area network, wherein a CE router is usually an IP router, establishes an adjacent relation with a connected PE router, and provides multi-point service access for users by connecting one or more PE routers, the PE router is equivalent to a label Edge router, connects the CE router and a P router, and user traffic flows into a user network through the PE router or flows into a networking backbone network through the PE router, and the P router is backbone network routing device and is equivalent to a label switching router.
CPE (Customer Premise Equipment), customer premises equipment) a terminal device that directly converts broadband signals or mobile network data into WIFI signals.
NQA (Network Quality Analyzer, network quality analysis), a real-time network performance detection and analysis technique, which can perform statistical analysis on network information such as response time, network jitter, packet loss rate, etc., and real-time monitor network service quality, so that a manager can rapidly locate fault points.
BFD (Bidirectional Forwarding Detection bidirectional forwarding detection), a protocol for rapidly detecting link state changes, is mainly applied between routers in a network, and when one node finds that a problem occurs in connection with a neighbor node, the BFD immediately informs all relevant devices to accelerate the fault detection process.
Example 1
With the perfect deployment of 5G base stations, 5G customized networks are gradually put into scale business. In the 5G customized network scheme, the user plane functional entity can sink to the ground city and even a user machine room, can distinguish data flows through a data network name technology, provides a special signing fixed IP address for a wireless access user terminal to realize interconnection requirements, and then, the user front-end equipment can access a client intranet identified by a special data network name and isolate an access channel from a public network, so that the safety of access of the special network and the privacy of data transmission are ensured.
On the basis, the embodiment of the application firstly provides a network communication system combining fixed and mobile. Fig. 1 is a schematic structural diagram of an alternative network communication system with fixed and mobile combination according to an embodiment of the present application, and as shown in fig. 1, the system at least includes an operator edge device 11 operating in a metropolitan area network, a user edge device 12 accessing a user local area network according to a target IP address of a user service, a first communication link 13 based on a wired network and a second communication link 14 based on a wireless network between the operator edge device 11 and the user edge device 12.
The first communication link 13 operates in a metropolitan area network, and the second communication link 14 includes a first virtual extended local area network tunnel endpoint 141 connected to the user edge device 12, a second virtual extended local area network tunnel endpoint 142 connected to the operator edge device 11, and a virtual extended local area network tunnel 143 between the first virtual extended local area network tunnel endpoint 141 and the second virtual extended local area network tunnel endpoint 142, where the virtual extended local area network tunnel 143 is logically isolated from the public network.
The method comprises the steps of establishing a user exclusive wireless communication link based on a virtual expansion local area network technology, realizing transparent transmission of two layers of data through three layers of networks, enabling the wireless network to be an access extension of a metropolitan area network, enabling a wired network and a wireless network of a user to share a target IP address of a user service, and effectively solving the technical problem that the IP address cannot be shared when a fixed network and a mobile network are combined to form a network in the related technology.
Based on the network communication system of fig. 1, fig. 2 shows a schematic structural diagram of a more specific fixed-shift combined network communication system, and a specific structure and a function of each module in the network communication system are described below with reference to fig. 2.
Optionally, the operator edge device 11 includes a first gateway 111 connected to the first communication link 13 and a second gateway 112 connected to the second communication link 14, and the user edge device 12 includes a local area network interface 121 connected to the user local area network, a first wide area network interface 122 connected to the first communication link 13, and a second wide area network interface 123 connected to the second communication link 14, where a target IP address of the user service is fixed at the local area network interface 121.
Optionally included in the first communication link 13 is a light cat 131 connected to the first wide area network interface 122, the light cat 131 typically being located on the user side, a switch 132 or an optical line terminal 133 connected to the light cat 131, and a data center switch 134 connected to the switch 132 or the optical line terminal 133, the data center switch 134 also being connected to the first gateway 111.
Optionally, in the second communication link 14, the first virtual extended local area network tunnel endpoint may be a user pre-device 141 connected to the second wide area network interface 123, an internet of things card may be built in the user pre-device 141, and the internet of things card includes identification information for identifying a subscription IP address corresponding to the target data network name, the second virtual extended local area network tunnel endpoint may be an operator transceiver device 142 connected to the second gateway 112, and a virtual extended local area network tunnel 143 is constructed between the user pre-device 141 and the operator transceiver device 142.
After power-on, the user front-end equipment 141 may be connected with a user plane functional entity corresponding to a target base station in a target range, and obtains a contracted IP address corresponding to a target data network name from the user plane functional entity according to identification information in an internet of things card, then, a virtual extended local area network tunnel 143 is constructed by using the user front-end equipment 141 and an operator transceiver 142 as two endpoints, the virtual extended local area network tunnel 143 is logically isolated from a public network, the user front-end equipment 141 performs message encapsulation according to the contracted IP address and a local loop back address of the operator transceiver 142, and the operator transceiver 142 performs message encapsulation according to the contracted IP address and the local loop back address, and performs data transmission through the virtual extended local area network tunnel 143, thereby realizing transparent transmission of two layers of data across three layers of networks.
Alternatively, considering that the relative stability and security of the wired network are stronger, in the embodiment of the present application, the traffic priority of the first communication link 13 is higher than that of the second communication link 14, that is, the first communication link 13 based on the wired network is used as a main communication link, and the second communication link 14 based on the wireless network is used as a standby communication link.
Optionally, the ue 12 further includes a first detection module 124 and a first switching module 125, where the first detection module 124 is configured to perform network quality analysis and bidirectional forwarding detection on the first communication link 13 to determine whether the first communication link 13 is abnormal, and the first switching module 1125 is configured to switch uplink traffic transmitted by the ue 12 through the first communication link 13 to the second communication link 14 for transmission when the first communication link 13 is abnormal, and switch uplink traffic transmitted through the second communication link 14 back to the first communication link 13 for transmission when the first communication link 13 returns to normal.
Optionally, the operator edge device 11 also includes a second detection module 113 and a second switching module 114, where the second detection module 113 is configured to perform network quality analysis and bidirectional forwarding detection on the first communication link 13 to determine whether the first communication link 13 is abnormal, and the second switching module 114 is configured to switch, when the first communication link 13 is abnormal, downlink traffic transmitted by the operator edge device 11 through the first communication link 13 to the second communication link 14 for transmission, and switch, when the first communication link 13 returns to normal, downlink traffic transmitted through the second communication link 14 back to the first communication link 13 for transmission.
The method combines network quality analysis and bidirectional forwarding detection technology, links with a routing protocol, can realize sub-second-level rapid switching of a communication link during a fault period, and meanwhile, a target IP address of a user service is kept unchanged in a switching process, so that the stability of the service can be ensured, and the system risk of a single network is avoided.
In the network communication system of the embodiment of the application, the operator edge equipment running in the metropolitan area network and the user edge equipment accessing the user local area network according to the target IP address of the user service carry out service flow transmission through a first communication link based on a wired network and a second communication link based on a wireless network, wherein the first communication link runs in the metropolitan area network, the second communication link is constructed based on a virtual expansion local area network technology and comprises a first virtual expansion local area network tunnel endpoint connected with the user edge equipment, a second virtual expansion local area network tunnel endpoint connected with the operator edge equipment and a virtual expansion local area network tunnel between the first virtual expansion local area network tunnel endpoint and the second virtual expansion local area network tunnel endpoint, and the virtual expansion local area network tunnel is logically isolated from a public network, so that the wireless network becomes access extension of the metropolitan area network through three-layer network, thereby enabling the wired network and the wireless network of the user to share the target IP address of the user service, and effectively solving the technical problem that the IP address cannot be shared when the fixed network and the mobile network are combined in the related technology.
Example 2
On the basis of the operation of the fixed-mobile combined network communication system provided in embodiment 1, the embodiment of the present application provides a fixed-mobile combined network communication method performed by a user edge device, it should be noted that the steps illustrated in the flowchart of the drawings may be performed in a computer system such as a set of computer executable instructions, and that although a logical order is illustrated in the flowchart, in some cases the steps illustrated or described may be performed in an order different from that herein.
Fig. 3 is a flow chart of an alternative method of network communication with fixed and mobile combination according to an embodiment of the present application, as shown in fig. 3, the method at least includes steps S302-S306, where:
Step S302, accessing a user local area network according to a target IP address of a user service;
Step S304, transmitting service flow with the operator edge equipment through a first communication link based on a wired network, wherein the operator edge equipment and the first communication link operate in a metropolitan area network;
And step S306, when the first communication link is abnormal, switching the service flow to a second communication link based on the wireless network, and transmitting the service flow with the edge equipment of the operator through the second communication link, wherein the second communication link comprises a first virtual expansion local area network tunnel endpoint connected with the edge equipment of the user, a second virtual expansion local area network tunnel endpoint connected with the edge equipment of the operator, a virtual expansion local area network tunnel between the first virtual expansion local area network tunnel endpoint and the second virtual expansion local area network tunnel endpoint, and the virtual expansion local area network tunnel is logically isolated from the public network.
Optionally, when the first communication link returns to normal, the traffic is switched back to the first communication link, and the traffic is transmitted with the operator edge device through the first communication link.
The network communication process of the scheme of the present application is described below with reference to specific implementation steps.
As an optional implementation manner, the user edge device in the embodiment of the present application adopts a networking manner of dual wide area network+local area network, connects with the user local area network through a local area network interface, connects with the first communication link through a first wide area network interface, and connects with the second communication link through a second wide area network interface, where a target IP address of the user service is fixed at the local area network interface of the user edge device, so as to ensure that the target IP address of the user service remains unchanged when the communication link is switched.
Optionally, in the second communication link, the first virtual expansion local area network tunnel endpoint may be a user front-end device connected to the second wide area network interface, an internet of things card may be built in the user front-end device, the internet of things card includes identification information for identifying a subscription IP address corresponding to the target data network name, the second virtual expansion local area network tunnel endpoint may be an operator transceiver device connected to a second gateway of the operator edge device, and a virtual expansion local area network tunnel is constructed between the user front-end device and the operator transceiver device.
When the second communication link is constructed, the user front-end equipment can be connected with a user plane functional entity corresponding to a target base station in a target range after power-on, a contracted IP address corresponding to a target data network name is acquired from the user plane functional entity according to identification information in an Internet of things card, then a virtual expansion local area network tunnel is constructed by taking the user front-end equipment and an operator transceiver as two endpoints, the virtual expansion local area network tunnel is logically isolated from a public network, the user front-end equipment performs message encapsulation according to the contracted IP address and a local loop back address of the operator transceiver, and the operator transceiver also performs message encapsulation according to the contracted IP address and the local loop back address, and performs data transmission through the virtual expansion local area network tunnel, so that three-layer network penetration transmission of two-layer data is realized.
Considering that the relative stability and security of the wired network are stronger, in the embodiment of the present application, the service priority of the first communication link is higher than that of the second communication link, that is, the first communication link based on the wired network can be used as a main communication link, the second communication link based on the wireless network can be used as a standby communication link, and under normal conditions, the user service traffic is only transmitted on the main communication link.
Optionally, the user edge device can monitor the communication state of the first communication link in real time through a network quality analysis and bidirectional forwarding detection technology, and when the first communication link is monitored to be abnormal, the uplink traffic transmitted through the first communication link can be switched to the second communication link for transmission, and the operator edge device is also generally configured with a network quality analysis and bidirectional forwarding detection function, and when the first communication link is monitored to be abnormal, the route release on the first communication link can be cancelled through route linkage, and the downlink traffic can be switched to the second communication link for transmission.
Optionally, when the first communication link is recovered to be normal, the user edge device and the operator edge device may recover route release of the first communication link, so as to implement automatic switching of the traffic. The target IP address of the user service is kept unchanged in the primary-standby switching process, so that the target IP address of the user service can be shared by the wired network and the wireless network, and the service is not influenced.
The embodiment of the application comprises the steps that user edge equipment firstly accesses a user local area network according to a target IP address of user service, then, service flow transmission is carried out between the user local area network and the operator edge equipment through a first communication link based on a wired network, wherein the operator edge equipment and the first communication link operate in a metropolitan area network, when the first communication link is abnormal, the service flow is switched to a second communication link based on a wireless network, the service flow transmission is carried out between the second communication link and the operator edge equipment through the second communication link, and the second communication link comprises a first virtual expansion local area network tunnel endpoint connected with the user edge equipment, a second virtual expansion local area network tunnel endpoint connected with the operator edge equipment, a virtual expansion local area network tunnel between the first virtual expansion local area network tunnel endpoint and the second virtual expansion local area network tunnel endpoint, and the virtual expansion local area network tunnel is logically isolated from a public network. The method comprises the steps of establishing a user exclusive wireless communication link based on a virtual expansion local area network technology, realizing transparent transmission of two layers of data through three layers of networks, enabling the wireless network to be an access extension of a metropolitan area network, enabling a wired network and a wireless network of a user to share a target IP address of a user service, and effectively solving the technical problem that the IP address cannot be shared when a fixed network and a mobile network are combined to form a network in the related technology.
Example 3
According to an embodiment of the present application, there is also provided a nonvolatile storage medium including a stored computer program, where a device in which the nonvolatile storage medium is located executes the network communication method of the fixed shift combination in embodiment 2 by running the computer program.
The method comprises the steps of accessing a user local area network according to a target IP address of user service, transmitting service traffic through a first communication link based on a wired network and an operator edge device, wherein the operator edge device and the first communication link operate in a metropolitan area network, switching the service traffic to a second communication link based on a wireless network when the first communication link is abnormal, and transmitting the service traffic through the second communication link and the operator edge device, wherein the second communication link comprises a first virtual expansion local area network tunnel endpoint connected with the user edge device, a second virtual expansion local area network tunnel endpoint connected with the operator edge device, a virtual expansion local area network tunnel between the first virtual expansion local area network tunnel endpoint and the second virtual expansion local area network tunnel endpoint, and the virtual expansion local area network tunnel is logically isolated from a public network.
According to an embodiment of the present application, there is also provided a processor for running a computer program, wherein the computer program when run performs the network communication method of the fixed-mobile combination in embodiment 2.
The method comprises the steps of accessing a user local area network according to a target IP address of user service, carrying out service traffic transmission with operator edge equipment through a first communication link based on a wired network, wherein the operator edge equipment and the first communication link operate in a metropolitan area network, switching service traffic to a second communication link based on a wireless network when the first communication link is abnormal, and carrying out service traffic transmission with the operator edge equipment through the second communication link, wherein the second communication link comprises a first virtual expansion local area network tunnel endpoint connected with the user edge equipment, a second virtual expansion local area network tunnel endpoint connected with the operator edge equipment, a virtual expansion local area network tunnel between the first virtual expansion local area network tunnel endpoint and the second virtual expansion local area network tunnel endpoint, and the virtual expansion local area network tunnel is logically isolated from a public network.
There is further provided in accordance with an embodiment of the present application an electronic device comprising a memory and a processor, wherein the memory stores a computer program, the processor being configured to perform the fixed-mobile combined network communication method of embodiment 2 by the computer program.
The processor is configured to access a user local area network according to a target IP address of user service, transmit service traffic through a first communication link based on a wired network and an operator edge device, wherein the operator edge device and the first communication link operate in a metropolitan area network, switch the service traffic to a second communication link based on a wireless network when the first communication link is abnormal, and transmit the service traffic through the second communication link and the operator edge device, wherein the second communication link comprises a first virtual expansion local area network tunnel endpoint connected with the user edge device, a second virtual expansion local area network tunnel endpoint connected with the operator edge device, a virtual expansion local area network tunnel between the first virtual expansion local area network tunnel endpoint and the second virtual expansion local area network tunnel endpoint, and the virtual expansion local area network tunnel is logically isolated from a public network.
The foregoing embodiment numbers are merely for the purpose of description and do not represent the advantages or disadvantages of the embodiments.
In the foregoing embodiments of the present application, the descriptions of the embodiments are emphasized, and for a portion of this disclosure that is not described in detail in this embodiment, reference is made to the related descriptions of other embodiments.
In the several embodiments provided in the present application, it should be understood that the disclosed technology may be implemented in other manners. The above-described embodiments of the apparatus are merely exemplary, and the division of units may be a logic function division, and there may be another division manner in actual implementation, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with each other may be through some interfaces, units or modules, or may be in electrical or other forms.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed over a plurality of units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in the embodiments of the present application may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in software functional units.
The integrated units, if implemented in the form of software functional units and sold or used as stand-alone products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application may be embodied in essence or a part contributing to the prior art or all or part of the technical solution in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server or a network device, etc.) to perform all or part of the steps of the method of the various embodiments of the present application. The storage medium includes a U disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a removable hard disk, a magnetic disk, or an optical disk, etc. which can store the program code.
The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.
Claims (10)
1. The fixed and mobile combined network communication system is characterized in that the system is used for penetrating and transmitting two layers of data through three layers of networks, so that a wireless network is used as access extension of a metropolitan area network, and a wired network and a wireless network of a user share a target IP address of a user service, and the system comprises:
operator edge equipment operating in the metropolitan area network;
Accessing user edge equipment of a user local area network according to the target IP address of the user service;
A first communication link based on a wired network and a second communication link based on a wireless network between the operator edge device and the user edge device, wherein the first communication link operates in the metropolitan area network, and the second communication link comprises a first virtual expansion local area network tunnel endpoint connected with the user edge device, a second virtual expansion local area network tunnel endpoint connected with the operator edge device, and a virtual expansion local area network tunnel between the first virtual expansion local area network tunnel endpoint and the second virtual expansion local area network tunnel endpoint, and the virtual expansion local area network tunnel is logically isolated from a public network;
The user edge equipment comprises a local area network interface connected with the user local area network, a first wide area network interface connected with the first communication link and a second wide area network interface connected with the second communication link.
2. The system of claim 1, wherein the system further comprises a controller configured to control the controller,
The operator edge equipment comprises a first gateway connected with the first communication link and a second gateway connected with the second communication link.
3. The system of claim 2, wherein the first communication link comprises:
a light cat connected to the first wide area network interface;
a switch or an optical line terminal connected to the optical modem;
And the data center switch is connected with the switch or the optical line terminal and is also connected with the first gateway.
4. The system of claim 2, wherein, in the second communication link,
The first virtual expansion local area network tunnel endpoint comprises user prepositive equipment connected with the second wide area network interface, wherein the user prepositive equipment comprises an Internet of things card, and the Internet of things card comprises identification information for identifying a signing IP address corresponding to a target data network name;
The second virtual extended local area network tunnel endpoint comprises an operator transceiver device connected to the second gateway;
The virtual expansion local area network tunnel is constructed between the user front-end equipment and the operator receiving and transmitting equipment.
5. The system of claim 4, wherein the system further comprises a controller configured to control the controller,
The user front-end equipment is used for being connected with a user plane functional entity corresponding to a target base station in a target range after being electrified, acquiring the signing IP address corresponding to the target data network name from the user plane functional entity according to the identification information, and carrying out message encapsulation according to the signing IP address and a local loop back address of the operator transceiver equipment;
the operator transceiver is used for packaging the message according to the contracted IP address and the local loop back address.
6. The system of claim 1, wherein the system further comprises a controller configured to control the controller,
The traffic priority of the first communication link is higher than the traffic priority of the second communication link.
7. The system of claim 6, wherein the system further comprises a controller configured to control the controller,
The user edge equipment further comprises a first detection module and a first switching module, wherein the first detection module is used for carrying out network quality analysis and bidirectional forwarding detection on the first communication link so as to determine whether the first communication link is abnormal, and the first switching module is used for switching the uplink flow transmitted by the user edge equipment through the first communication link to the second communication link for transmission when the first communication link is abnormal and switching the uplink flow transmitted through the second communication link back to the first communication link for transmission when the first communication link returns to normal;
The operator edge equipment further comprises a second detection module and a second switching module, wherein the second detection module is used for carrying out network quality analysis and bidirectional forwarding detection on the first communication link to determine whether the first communication link is abnormal, and the second switching module is used for switching the downlink flow transmitted by the operator edge equipment through the first communication link to the second communication link for transmission when the first communication link is abnormal, and switching the downlink flow transmitted through the second communication link back to the first communication link for transmission when the first communication link returns to normal.
8. The fixed-mobile combined network communication method is applied to user edge equipment and is characterized by being used for penetrating and transmitting two layers of data through three layers of networks, so that a wireless network is used as access extension of a metropolitan area network, and a wired network and a wireless network of a user share a target IP address of a user service, and the method comprises the following steps:
Accessing a user local area network according to the target IP address of the user service;
carrying out service traffic transmission with an operator edge device through a first communication link based on a wired network, wherein the operator edge device and the first communication link operate in a metropolitan area network;
When the first communication link is abnormal, switching the service flow to a second communication link based on a wireless network, and carrying out service flow transmission with the operator edge equipment through the second communication link, wherein the second communication link comprises a first virtual expansion local area network tunnel endpoint connected with user edge equipment, a second virtual expansion local area network tunnel endpoint connected with the operator edge equipment, a virtual expansion local area network tunnel between the first virtual expansion local area network tunnel endpoint and the second virtual expansion local area network tunnel endpoint, and the virtual expansion local area network tunnel is logically isolated from a public network, and the user edge equipment comprises a local area network interface connected with the user local area network, a first wide area network interface connected with the first communication link and a second wide area network interface connected with the second communication link.
9. The method of claim 8, wherein the method further comprises:
and switching the service flow back to the first communication link when the first communication link is recovered to be normal, and transmitting the service flow with the operator edge equipment through the first communication link.
10. A non-volatile storage medium, characterized in that the non-volatile storage medium comprises a stored computer program, wherein the device in which the non-volatile storage medium is located performs the network communication method of claim 8 or claim 9 by running the computer program.
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| CN115189920A (en) * | 2022-06-16 | 2022-10-14 | 阿里巴巴（中国）有限公司 | Cross-network domain communication method and related device |
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| US11546253B2 (en) * | 2021-03-31 | 2023-01-03 | Juniper Networks, Inc | Fast reroute for ethernet virtual private networks—virtual extensible local area network |
| CN114257439B (en) * | 2021-12-17 | 2023-07-07 | 中国联合网络通信集团有限公司 | Service scheduling method, AAA server and service support system |
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| CN103856574A (en) * | 2012-12-06 | 2014-06-11 | 中国电信股份有限公司 | Method, device and system for controlling services |
| CN115189920A (en) * | 2022-06-16 | 2022-10-14 | 阿里巴巴（中国）有限公司 | Cross-network domain communication method and related device |
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