A communication line fault repair method and device, electronic equipment and storage medium

Abstract

Embodiments of the present application provide a communication line fault repair method and device, electronic equipment and storage medium, the method comprising: in the case of network private line interruption, by connecting CPE devices at both ends of the fault optical cable respectively, the network communication service of the network private line is recovered; or, in the case that the headquarters is configured with a POP device and the access layer of the branch corresponding to the POP device has optical cable failure, by using the CPE device to replace the faulty transmission device, the network communication service of the network private line is recovered. By using the above method, the CPE device is pre-configured with line repair data, when optical cable failure occurs, the CPE device is directly connected to both ends of the fault optical cable to restore the network, or, when the headquarters is configured with a POP device, the CPE device is directly used to replace the original transmission device when the optical cable of the branch access layer fails to restore the network, which meets the fault handling principle of "restoring first and repairing later" and quickly restores the communication service.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of communication, in particular to a communication line fault repair method, a communication line fault repair device, an electronic device and a computer readable storage medium. BACKGROUND

[0002] With the growth of the scale of government-enterprise private line users, the maintenance workload of private lines is increasing. In order to guarantee the service experience of customers, improve customer satisfaction, reduce business interruption time, and reduce customer complaints, service requirements for recovery time limits of various businesses are clearly specified, fault duration is shortened, and user perception is improved.

[0003] According to big data statistics of government-enterprise private line business fault reasons, the proportion of user business full block caused by accidental interruption of optical path is increasing. The current traditional optical cable repair scheme is still used to recover user business, which has high repair complexity, long processing time, is limited by space factors, and the user business recovery time limit is uncontrollable, with high overtime risk. SUMMARY

[0004] In view of the above problems, the embodiments of the present application are proposed to provide a communication line fault repair method and corresponding communication line fault repair device, electronic device and computer readable storage medium which overcome the above problems or at least partially solve the above problems.

[0005] The embodiments of the present application disclose a communication line fault repair method, which comprises:

[0006] In the case of network private line interruption, by respectively connecting CPE devices at both ends of the fault optical cable, the network communication business of the network private line is recovered.

[0007] Or,

[0008] In the case of optical cable failure in the access layer corresponding to the branch with the POP device configured at the headquarters, the transmission device is replaced by the CPE device to recover the network communication business of the network private line.

[0009] Optionally, the CPE device is configured with a SIM card, and the recovery of the network communication business of the network private line comprises:

[0010] Accessing the core network through the SIM card, establishing a VXLAN tunnel between the accessed CPE device and / or the POP device through the network channel of the core network;

[0011] Recovering the network communication business of the network private line through the VXLAN tunnel.

[0012] Optionally, the CPE device is configured with a data card, and the VXLAN tunnel is established between the accessed CPE device and / or the POP device through the network channel of the core network, including:

[0013] An un-fixed IP address is obtained through the data card, and an L2TP tunnel is established between the SDWAN POP point VCPE device and the CPE device through the L2TP protocol and the public network IP address.

[0014] After the L2TP tunnel is established, a private IP address obtained through the L2TP tunnel is used to establish a VXLAN tunnel between the accessed CPE device and / or the POP device.

[0015] Optionally, the CPE device is configured with an APN card, and the VXLAN tunnel is established between the accessed CPE device and / or the POP device through the network channel of the core network, including:

[0016] A fixed IP address is obtained through the APN card, and the obtained IP address is used as a tunnel address for establishing a VXLAN tunnel to establish a VXLAN tunnel between the accessed CPE device and / or the POP device.

[0017] Optionally, the method further includes:

[0018] The Layer 2 data or Layer 3 data is transparently transmitted in the Layer 3 network of the network line through the VXLAN / IPSec over L2TP technology.

[0019] Optionally, the network line includes a plurality of transmission networks, and the method further includes:

[0020] Different transmission networks are respectively connected by deploying a plurality of POP devices, and different line services are repaired; wherein the transmission network includes one or more of a PTN transmission network, an SDH transmission network, an MPLS transmission network, an MSTP transmission network, and an OTN transmission network.

[0021] Optionally, the method further includes:

[0022] The CPE device is used as a Spoke-CPE node, and the POP device is used as a Hub-CPE node, to realize Hub-Spoke networking between the CPE device and the POP device; wherein the LAN side of the POP device is connected to the transmission network, and the WAN side is connected to the Internet; the POP device and the CPE device are configured with an L2TP tunnel, a VXLAN tunnel, and an IPSec tunnel; the WAN side of the CPE device is connected to the POP device, and the WAN side is connected to a branch router.

[0023] This invention also discloses a communication line fault repair device, the device comprising:

[0024] The first recovery module is used to restore the network communication services of the leased network line by connecting CPE devices at both ends of the faulty optical cable in the event of a network line interruption.

[0025] or,

[0026] The second recovery module is used to restore network communication services of the leased network line by replacing the faulty transmission equipment with CPE equipment when a POP device is configured at the headquarters and an optical cable failure occurs at the access layer of the corresponding branch.

[0027] Optionally, the CPE device is equipped with a SIM card, and the first recovery module or the second recovery module includes:

[0028] The tunnel establishment submodule is used to access the core network through the SIM card and establish a VXLAN tunnel between the accessed CPE device and / or the POP device through the network channel of the core network.

[0029] The recovery submodule is used to restore network communication services of the leased network line through the VXLAN tunnel.

[0030] Optionally, the CPE device is equipped with a data card, and the tunnel establishment submodule includes:

[0031] The first tunnel establishment unit is used to obtain a variable IP address through the data card and establish an L2TP tunnel with the SDWAN POP point VCPE device through the public IP address via the L2TP protocol.

[0032] The second tunnel establishment unit is used to establish a VXLAN tunnel between the accessed CPE device and / or the POP device using the private IP address obtained through the L2TP tunnel after the L2TP tunnel is established.

[0033] Optionally, the CPE device is equipped with an APN card, and the tunnel establishment submodule includes:

[0034] The third tunnel establishment unit is used to obtain a fixed IP address through the APN card, and use the obtained IP address as the tunnel address for establishing a VXLAN tunnel between the accessed CPE device and / or the POP device.

[0035] Optionally, the device further includes:

[0036] The transparent transmission module is used to transparently transmit Layer 2 or Layer 3 data in the Layer 3 network of the leased network using VXLAN / IPSec over L2TP technology.

[0037] Optionally, the leased network line includes multiple transmission networks, and the device further includes:

[0038] The emergency repair module is used to perform emergency repairs on different leased line services by deploying multiple POP devices to connect to different transmission networks; wherein, the transmission network includes one or more of PTN transmission network, SDH transmission network, MPLS transmission network, MSTP transmission network and OTN transmission network.

[0039] Optionally, the device further includes:

[0040] The networking module is used to implement Hub-Spoke networking between the CPE device and the POP device by using the CPE device as a Spoke-CPE node and the POP device as a Hub-CPE node; wherein, the LAN side of the POP device is connected to the transmission network and the WAN side is connected to the Internet; an L2TP tunnel, a VXLAN tunnel, and an IPSec tunnel are configured between the POP device and the CPE device; the WAN side of the CPE device is connected to the POP device and the WAN side is connected to the branch router.

[0041] This invention also discloses an electronic device, including: a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, it implements the communication line fault repair method described above.

[0042] This invention also discloses a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the communication line fault repair method described above.

[0043] The embodiments of the present invention have the following advantages:

[0044] In this embodiment of the invention, in the event of a network leased line interruption, network communication services can be quickly restored by connecting CPE devices to both ends of the faulty optical cable. Alternatively, if a POP device is configured at headquarters and an optical cable fault occurs at the access layer of a branch corresponding to headquarters, the network communication services can be quickly restored by replacing the faulty transmission equipment with a CPE device. By employing the above method, the CPE device is pre-configured with line repair data. When an optical cable fault occurs, the CPE device can be directly connected to both ends of the faulty optical cable to restore the network. Alternatively, if a POP device is configured at headquarters, and an optical cable fault occurs at the access layer of a branch, the CPE device can be directly used to replace the original transmission equipment to restore the network. After the network is restored, line personnel can continue to troubleshoot and repair the optical cable. This method reduces the interruption time of network communication services, meets the fault handling principle of "restoring service first, then repairing," quickly restores communication services, minimizes the impact of line faults on users, and provides maintenance departments with more time for optical cable repair. Attached Figure Description

[0045] Figure 1 This is a flowchart of the steps of a communication line fault repair method provided in an embodiment of the present invention;

[0046] Figure 2 This is a flowchart of another communication line fault repair method provided in an embodiment of the present invention;

[0047] Figure 3 This is a schematic diagram of a business data encapsulation according to an embodiment of the present invention;

[0048] Figure 4 This is a schematic diagram illustrating an application scenario of establishing a corresponding tunnel using an APN card, according to an embodiment of the present invention.

[0049] Figure 5 This is a schematic diagram illustrating an application scenario where a data card is used to establish a corresponding tunnel according to an embodiment of the present invention.

[0050] Figure 6 This is a schematic diagram of VLAN pass-through during the emergency repair process according to an embodiment of the present invention;

[0051] Figure 7 This is a schematic diagram of the emergency repair system according to an embodiment of the present invention;

[0052] Figure 8 This is a schematic diagram of the point-to-point and point-to-multipoint emergency repair system of the present invention;

[0053] Figure 9 This is a schematic diagram illustrating the technical implementation process of an embodiment of the present invention;

[0054] Figure 10This is a schematic diagram illustrating the packet encapsulation and decapsulation process in the Hub-Spoke network according to an embodiment of the present invention;

[0055] Figure 11 This is a schematic diagram of the deployment method of the emergency repair system of the present invention;

[0056] Figure 12 This is a schematic diagram of an implementation scenario of an embodiment of the present invention;

[0057] Figure 13 This is a structural block diagram of a communication line fault repair device provided in an embodiment of the present invention. Detailed Implementation

[0058] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art are within the scope of protection of the present invention.

[0059] Enterprise leased lines leverage abundant transmission network resources to provide various leased line access methods for government and enterprises, helping them access the Internet and private networks to conduct various business applications. As the number of enterprise leased line users grows, the workload for maintenance also increases. To ensure a better customer service experience, improve customer satisfaction, reduce service interruption time, and decrease customer complaints, clear service requirements for the recovery time of various services have been established to shorten fault duration and enhance user experience.

[0060] According to big data statistics on the causes of failures in government and enterprise leased line services, the proportion of service outages caused by unexpected optical path interruptions is showing a continuous upward trend. The following are situations where optical cables pose a potential interruption risk:

[0061] The user's physical site does not have the resources for a second optical cable route and can only achieve single-line access. This problem is particularly prominent in remote areas such as user branches and towns.

[0062] Some dual-line access nodes have pseudo-loop problems such as being on the same cable or using the same route. Once an interruption occurs, they cannot provide a protection switching path.

[0063] Existing optical cables are aging, leading to increased optical decay, which causes poor service quality or even interruptions.

[0064] Unexpected cable breaks caused by unforeseen municipal construction projects or natural disasters;

[0065] Currently, traditional optical cable repair solutions are still used to restore user services. These solutions are complex, time-consuming, and subject to spatial limitations, making the restoration time unpredictable and posing a high risk of delays.

[0066] Therefore, the present invention aims to provide a communication line fault repair method and a corresponding communication line fault repair device, an electronic device, and a computer-readable storage medium to overcome or at least partially solve the above problems.

[0067] One of the core concepts of this invention is that, in the event of a network leased line interruption, network communication services can be quickly restored by connecting CPE devices to both ends of the faulty optical cable. Alternatively, if a POP device is configured at headquarters and an optical cable fault occurs at the access layer of a branch corresponding to headquarters, network communication services can be quickly restored by replacing the faulty transmission equipment with a CPE device. Using this method, the CPE device is pre-configured with line repair data. When an optical cable fault occurs, the CPE device can be directly connected to both ends of the faulty optical cable to restore the network. Alternatively, if a POP device is configured at headquarters, and an optical cable fault occurs at the branch access layer, the CPE device can be directly used to replace the original transmission equipment to restore the network. After the network is restored, line personnel can continue to troubleshoot and repair the optical cable. This method reduces the interruption time of network communication services, meets the fault handling principle of "restoring service first, then repairing," quickly restores communication services, minimizes the impact of line faults on users, and provides maintenance departments with more valuable time for optical cable repair.

[0068] Reference Figure 1 The diagram illustrates a flowchart of a communication line fault repair method provided by an embodiment of the present invention, which may specifically include the following steps:

[0069] Step 101: In the event of a network leased line interruption, restore network communication services of the network leased line by connecting CPE devices at both ends of the faulty optical cable.

[0070] CPE, short for Customer Premise Equipment, refers to user network access equipment, typically including devices such as modems, routers, switches, and firewalls. CPEs are a crucial component of communication networks, responsible for transmitting data streams provided by the network provider to user terminal devices.

[0071] In this embodiment of the invention, the data required for line repair can be pre-configured in the CPE device. In the event of a network leased line interruption, network communication services can be quickly restored by connecting the CPE device to both ends of the faulty optical cable. In this case, the CPE device is configured with the data required for line repair in a point-to-point manner.

[0072] Step 102: In the case of a fiber optic cable failure at the access layer of a branch branch where a POP device is configured at headquarters, the network communication service of the leased network line is restored by replacing the faulty transmission equipment with a CPE device.

[0073] Point of Presence (PoP) means entry point. A PoP is located outside the enterprise network edge and serves as the entry point for accessing the internal network. External services enter through the PoP.

[0074] The network leased line in this embodiment of the invention can be a network connecting a headquarters to multiple branch offices. A Point-of-Pressure (POP) device can be configured at the headquarters. In the event of a fiber optic cable failure at the access layer of a corresponding branch office, a CPE device can be used to replace the faulty transmission equipment and establish a tunnel with the POP device to achieve rapid restoration of network communication services on the leased line. In this scenario, the CPE device is configured with the data required for line repair in a point-to-multipoint manner.

[0075] In summary, in this embodiment of the invention, in the event of a network leased line interruption, network communication services can be quickly restored by connecting CPE devices to both ends of the faulty optical cable. Alternatively, if a POP device is configured at headquarters and an optical cable fault occurs at the access layer of a branch corresponding to headquarters, network communication services can be quickly restored by replacing the faulty transmission equipment with a CPE device. By employing the above methods, the CPE device is pre-configured with line repair data. When an optical cable fault occurs, the CPE device can be directly connected to both ends of the faulty optical cable to restore the network. Alternatively, if a POP device is configured at headquarters, and an optical cable fault occurs at the branch access layer, the CPE device can be directly used to replace the original transmission equipment to restore the network. After the network is restored, line personnel can continue to troubleshoot and repair the optical cable. This method reduces the interruption time of network communication services, meets the fault handling principle of "restoring service first, then repairing," quickly restores communication services, minimizes the impact of line faults on users, and provides maintenance departments with more time for optical cable repair.

[0076] Reference Figure 2 This diagram illustrates a flowchart of another communication line fault repair method provided by an embodiment of the present invention. The CPE device is equipped with a SIM card and may specifically include the following steps:

[0077] Step 201: In the event of a network leased line interruption, connect CPE devices to both ends of the faulty optical cable, or, if a POP device is configured at headquarters and an optical cable fault occurs at the access layer of the corresponding branch, replace the faulty transmission equipment with a CPE device.

[0078] Step 202: Access the core network via SIM card, and establish a VXLAN tunnel between the accessed CPE device and / or POP device through the network channel of the core network.

[0079] A SIM (Subscriber Identity Module) card is a user identification card held by mobile users of GSM (Global System for Mobile Communications).

[0080] VXLAN (Virtual eXtensible Local Area Network) is a tunneling technology that can establish a Layer 2 Ethernet network tunnel on top of a Layer 3 network, thereby enabling Layer 2 interconnection across geographical regions.

[0081] The CPE device can be pre-configured with the data required for line repair, and a SIM card can be inserted into the CPE device to access the core network. Then, through the network channel of the core network, a VXLAN tunnel can be established between the CPE device on the other side or the POP device on the central side, forming a two-layer emergency channel.

[0082] In an optional embodiment of the present invention, the CPE device is configured with a data card. In step 201, a VXLAN tunnel is established between the accessed CPE device and / or POP device through the network channel of the core network. Specifically, this may include the following sub-steps:

[0083] A variable IP address is obtained through a data card, and an L2TP tunnel is established with the VCPE device at the SDWAN POP point via the public IP address through the L2TP protocol.

[0084] After establishing an L2TP tunnel, the private IP address obtained through the L2TP tunnel is used to establish a VXLAN tunnel between the accessed CPE device and / or POP device.

[0085] VXLAN tunnels are used to transmit Layer 2 data.

[0086] An IP address (Internet Protocol address) is a unique address format provided by the IP protocol, which assigns a logical address to every network and every host on the Internet.

[0087] Layer Two Tunneling Protocol (L2TP) is a virtual tunneling protocol typically used in Virtual Private Networks (VPNs). L2TP itself does not provide encryption or reliability verification functionality; however, it can be used in conjunction with security protocols to achieve encrypted data transmission.

[0088] Software-defined networking in a wide area network (SD-WAN / SDWAN) is a collection of technologies. The main concept is to apply software-defined networking (SDN) technology to the management of wide area networks (WAN).

[0089] Virtual client device (VCPE), also known as cloud CPE, uses software-based functionality to replace proprietary hardware; it can be understood as a virtualized software-based CPE.

[0090] In this embodiment of the invention, a data card, such as a 5G data card, can be configured for the CPE device. The data card obtains a non-fixed IP address, and then establishes an L2TP tunnel with the SDWAN POP point VCPE device through the public IP address via the L2TP protocol. After the L2TP tunnel is established, a VXLAN tunnel is established between the accessed CPE device and / or POP device through the private IP address obtained by L2TP to transmit Layer 2 data.

[0091] In an optional embodiment of the present invention, the CPE device is configured with an APN card. In step 201, a VXLAN tunnel is established between the accessed CPE device and / or POP device through the network channel of the core network. Specifically, this may include the following sub-steps:

[0092] A fixed IP address is obtained through the APN card, and the obtained IP address is used as the tunnel address to establish a VXLAN tunnel between the access CPE device and / or POP device.

[0093] APN (Access Point Name) refers to a network access technology and is a parameter that must be configured when accessing the Internet. It determines which access method is used to access the network.

[0094] In another tunnel establishment method, an APN card can be configured for the emergency repair CPE device. This APN card obtains a fixed IP address, which is then used as the tunnel address to establish a VXLAN tunnel between the connected CPE device and / or POP device. Layer 2 data is transmitted based on this VXLAN tunnel. In a point-to-point system, the IP addresses obtained by both CPE devices are routable and reachable.

[0095] Step 203: Restore network communication services on the leased network line via VXLAN tunnel.

[0096] By establishing a VXLAN tunnel between the two CPE devices at both ends of the emergency repair, or between the emergency repair CPE device and the emergency repair POP device, the network communication service of the leased network line can be restored quickly.

[0097] In an optional embodiment of the present invention, the following steps may also be included:

[0098] VXLAN / IPSec over L2TP technology enables transparent transmission of Layer 2 or Layer 3 data within a Layer 3 network on a leased network.

[0099] Internet Protocol Security (IPSec) is a protocol suite that protects IP protocol network transport protocols (a collection of interrelated protocols) by encrypting and authenticating IP protocol packets. VXLAN / IPSec over L2TP means that packets are first encapsulated with VXLAN, then with IPSec, and finally with L2TP.

[0100] In this embodiment of the invention, VXLAN / IPSec over L2TP technology can be used to transparently transmit Layer 2 or Layer 3 data in a Layer 3 network, thereby enabling emergency restoration of network communication services. For example... Figure 3 The diagram shown is a schematic of a service data encapsulation according to an embodiment of the present invention. The original data can be Layer 2 or Layer 3 data, which is first encapsulated with VXLAN, then with IPSec, and finally with L2TP.

[0101] In this invention, the L2TP tunnel NAT traversal function enables cross-domain Layer 3 network networking.

[0102] In this invention, the data encryption function of IPSec tunnel (transmission mode) ensures the secure transmission of user services in the Internet environment.

[0103] In this invention, the L2VPN (Layer 2 Virtual Private Network) and L3VPN (Layer 3 Virtual Private Network) interoperability between different users is achieved through VXLAN tunnel service differentiation and networking functions.

[0104] In an optional embodiment of the present invention, the network leased line includes multiple transmission networks, and may further include the following steps:

[0105] By deploying multiple POP devices to connect to different transmission networks, emergency repairs can be carried out on different leased line services.

[0106] In this embodiment of the invention, multiple POP devices can be deployed at the user's headquarters, each connecting to a different transmission network to meet different leased line service emergency repair requirements. These transmission networks include PTN (Packet Transport Network), SDH (Synchronous Digital Hierarchy), MPLS (Multi-Protocol Label Switching), and MSTP (Multi-Service Transport Platform).

[0107] One or more of the following: multi-service transport platform (MSP) transmission network and OTN (Optical Transport Network) transmission network.

[0108] In an optional embodiment of the present invention, the following steps may also be included:

[0109] Hub-Spoke networking is achieved between CPE devices and POP devices by using CPE devices as Spoke-CPE nodes and POP devices as Hub-CPE nodes.

[0110] The POP device connects to the transmission network on the LAN side and to the Internet on the WAN side; L2TP tunnel, VXLAN tunnel and IPSec tunnel are configured between the POP device and the CPE device; the CPE device connects to the POP device on the WAN side and to the branch router on the WAN side.

[0111] The core idea of ​​Hub-Spoke VPN (Virtual Private Network) is to set up a central access control device within the VPN, through which other users access each other. A LAN (Local Area Network) is a regional network formed in a local area, while a WAN (Wide Area Network) is a long-distance network connecting computers in different local area networks or metropolitan area networks.

[0112] In this embodiment of the invention, the CPE device being repaired can be used as a Spoke-CPE node, and the POP device being repaired can be used as a Hub-CPE node, and Hub-Spoke networking can be completed between the two.

[0113] In practice, the POP devices used for emergency repairs can be deployed in the integrated service area or aggregation room. Their LAN side connects to the transmission network, and multiple devices can be deployed, each connecting to different transmission networks such as PTN, SDH, MPLS, and OTN. During emergency repairs, the backend establishes network connectivity between the emergency repair POP devices and the headquarters router. The WAN side of the emergency repair POP devices connects to the internet, using a fixed public IP address for the emergency repair CPE devices to dial up and register. The emergency repair POP devices are configured with L2TP, VXLAN, and IPSec tunnels. The WAN side of the emergency repair CPE devices connects to the emergency repair POP devices and is also configured with L2TP, VXLAN, and IPSec tunnels. The LAN side of the emergency repair CPE devices connects to branch routers and is configured with service VLANs (Virtual Local Area Networks).

[0114] The above-mentioned emergency repair method requires that when using emergency repair CPE or emergency repair POP equipment at the A and Z ends, the UNI interface connected to the user equipment should be an Ethernet interface, transparently transmitting GE or FE services, and supporting VLAN tags to meet the alternative transmission requirements of user Layer 2 and Layer 3 services.

[0115] Reference Figure 4 The diagram shown illustrates an application scenario of establishing a corresponding tunnel using an APN card, according to an embodiment of the present invention. Using a 5G APN card, a fixed IP address is obtained after dialing, which can be directly used as the tunnel address for establishing a VXLAN tunnel.

[0116] Reference Figure 5 The diagram illustrates an application scenario for establishing a corresponding tunnel using a data card, as shown in this embodiment of the invention. Using a 5G data card, a non-fixed IP address is obtained after dialing, making it impossible to directly establish a VXLAN tunnel. An L2TP tunnel needs to be established first, followed by the VXLAN tunnel. The repair POP device provides a fixed public IP address. The IP address obtained by the 5G data card after dialing can access the external network and can directly communicate with the public IP address of the repair POP device. First, an L2TP tunnel is established. The repair POP device acts as an LNS (L2TP Network Server), and the repair CPE device acts as an LAC (L2TP Access Concentrator). After the L2TP tunnel is established, the repair CPE device can obtain a fixed IP address through dialing. This address can then be used as the tunnel address for establishing the VXLAN tunnel.

[0117] Reference Figure 6 The diagram shown is a schematic of VLAN transparent transmission during the emergency repair process according to an embodiment of the present invention. Layer 2 or Layer 3 data is transparently transmitted in a Layer 3 network through VXLAN / IPSecover L2TP technology.

[0118] Reference Figure 7 The diagram shown is a schematic of an emergency repair system according to an embodiment of the present invention. It includes emergency repair CPE / POP devices and SIM cards inserted into the devices, and is composed of transmission networks such as PTN, SDH, MPLS, and OTN, as well as the Internet. The emergency repair system of the present invention can be divided into two categories: point-to-point and point-to-multipoint. Figure 8 As shown in the diagram. The point-to-point system requires at least two emergency repair CPE devices to provide a repair solution for access layer optical cable interruptions in a single user branch, characterized by its flexibility and mobility. The point-to-multipoint system requires at least one emergency repair POP device and n emergency repair CPE devices, capable of providing repair services to multiple user branches and the user headquarters, achieving end-to-end emergency recovery, and has a wider range of applications. To cover more leased line scenarios and a larger area, the point-to-multipoint system can deploy n emergency repair POP devices, respectively connecting to the PTN transmission network, MSTP transmission network, and OTN transmission network to meet different leased line service repair needs. Furthermore, the technical implementation can be as follows: Figure 9 As shown, by deploying CPE devices and inserting SIM cards into them, the core network is accessed through the SIM cards. Then, through the network channel of the core network, a VXLAN tunnel is established between the CPE devices on the other side or the POP devices on the central side, forming a Layer 2 emergency channel.

[0119] Furthermore, in the emergency repair method of the present invention, the emergency repair CPE device can be used as a Spoke-CPE node, and the emergency repair POP device can be used as a Hub-CPE node, completing Hub-Spoke networking between the two. The message encapsulation and decapsulation process is as follows: Figure 10 As shown.

[0120] Furthermore, the deployment method of the emergency repair system can be as follows: Figure 11 As shown. The POP devices for emergency repair can be deployed in the integrated service area or aggregation room. Their LAN side connects to the transmission network, and multiple devices can be deployed, each connecting to different transmission networks such as PTN, SDH, MPLS, and OTN. During emergency repairs, the backend establishes network connectivity between the emergency repair POP devices and the headquarters router. The WAN side of the emergency repair POP devices connects to the internet, using a fixed public IP address for the emergency repair CPE devices to dial up and register. The emergency repair POP devices are configured with L2TP, VXLAN, and IPSec tunnels. The WAN side of the emergency repair CPE devices connects to the emergency repair POP devices and is configured with L2TP, VXLAN, and IPSec tunnels. The LAN side of the emergency repair CPE devices connects to the branch routers and is configured with service VLANs.

[0121] Furthermore, such as Figure 12The diagram illustrates an implementation scenario of this invention. The emergency repair CPE device has a 5G data card inserted beforehand and obtains a variable IP address after dialing. The emergency repair POP device is pre-configured with L2TP data and VXLAN tunnels. The emergency repair CPE and POP establish an L2TP tunnel. After completing the L2TP dialing, the emergency repair CPE obtains a fixed IP address, which serves as the tunnel IP address. The emergency repair POP is directly connected to the transmission network via optical or electrical ports and transmits VLAN information based on customer services, supporting multiple VLANs. The user's core router can directly communicate with the emergency repair POP via the emergency repair line. The emergency repair CPE is pre-configured with a VXLAN tunnel, confirms the VLAN information of the customer services, and binds this VLAN to the VXLAN tunnel. A test PC (computer) verifies whether the service IPs at both ends can communicate; if they can, the emergency repair conditions are met.

[0122] In summary, in this embodiment of the invention, in the event of a network leased line interruption, network communication services can be quickly restored by connecting CPE devices to both ends of the faulty optical cable. Alternatively, if a POP device is configured at headquarters and an optical cable fault occurs at the access layer of a branch corresponding to headquarters, network communication services can be quickly restored by replacing the faulty transmission equipment with a CPE device. By employing the above method, the CPE device is pre-configured with line repair data. When an optical cable fault occurs, the CPE device can be directly connected to both ends of the faulty optical cable to restore the network. Alternatively, if a POP device is configured at headquarters, and an optical cable fault occurs at the access layer of a branch, the CPE device can be directly used to replace the original transmission equipment to restore the network. After the network is restored, line personnel can continue to troubleshoot and repair the optical cable. This method reduces the interruption time of network communication services, meets the fault handling principle of "restoring service first, then repairing," quickly restores communication services, minimizes the impact of line faults on users, and simultaneously provides maintenance departments with more valuable time for optical cable repair.

[0123] This invention integrates 5G slicing private network and SDWAN technologies, using VXLAN / IPSec over L2TP technology to achieve transparent transmission of user's Layer 2 or Layer 3 service data in a 5G Layer 3 network, thereby enabling emergency restoration. This invention creates a system and configuration model corresponding to the emergency repair method. This method, system, and configuration model are not only applicable to emergency repairs but also to service protection on leased lines lacking optical path protection. The CPE data in this invention is pre-configured; when a fault occurs, the device can restore services by reconnecting the fiber optic cable at the breakpoint. If VLANs exist, simply matching the CPE's VLAN data with the service VLAN data or modulating the link to transparent transmission mode is sufficient. The technical solution of this invention has strong applicability and is suitable for locating line faults in various production scenarios for operators.

[0124] This invention combines wireless and wired technologies to achieve comprehensive protection for services, resulting in higher service reliability. It integrates 5G slicing private network technology and SDWAN technology to virtualize resources, accelerate network service distribution efficiency, improve availability and service performance, and enable automated network deployment and management.

[0125] It should be noted that, for the sake of simplicity, the method embodiments are all described as a series of actions. However, those skilled in the art should understand that the embodiments of the present invention are not limited to the described order of actions, because according to the embodiments of the present invention, some steps can be performed in other orders or simultaneously. Furthermore, those skilled in the art should also understand that the embodiments described in the specification are preferred embodiments, and the actions involved are not necessarily essential to the embodiments of the present invention.

[0126] Reference Figure 13 The diagram shows a structural block diagram of a communication line fault repair device provided in an embodiment of the present invention, which may specifically include the following modules:

[0127] The first recovery module 1301 is used to restore the network communication services of the leased network line by connecting CPE devices at both ends of the faulty optical cable in the event of a network line interruption.

[0128] or,

[0129] The second recovery module 1302 is used to restore the network communication service of the leased network line by replacing the faulty transmission equipment with a CPE device when a POP device is configured at the headquarters and an optical cable failure occurs at the access layer of the corresponding branch.

[0130] In this embodiment of the invention, the CPE device is equipped with a SIM card, and the first recovery module or the second recovery module includes:

[0131] The tunnel establishment submodule is used to access the core network through the SIM card and establish a VXLAN tunnel between the accessed CPE device and / or the POP device through the network channel of the core network.

[0132] The recovery submodule is used to restore network communication services of the leased network line through the VXLAN tunnel.

[0133] In this embodiment of the invention, the CPE device is configured with a data card, and the tunnel establishment submodule includes:

[0134] The first tunnel establishment unit is used to obtain a variable IP address through the data card and establish an L2TP tunnel with the SDWAN POP point VCPE device through the public IP address via the L2TP protocol.

[0135] The second tunnel establishment unit is used to establish a VXLAN tunnel between the accessed CPE device and / or the POP device using the private IP address obtained through the L2TP tunnel after the L2TP tunnel is established.

[0136] In this embodiment of the invention, the CPE device is configured with an APN card, and the tunnel establishment submodule includes:

[0137] The third tunnel establishment unit is used to obtain a fixed IP address through the APN card, and use the obtained IP address as the tunnel address for establishing a VXLAN tunnel between the accessed CPE device and / or the POP device.

[0138] In this embodiment of the invention, the device further includes:

[0139] The transparent transmission module is used to transparently transmit Layer 2 or Layer 3 data in the Layer 3 network of the leased network using VXLAN / IPSec over L2TP technology.

[0140] In this embodiment of the invention, the leased network line includes multiple transmission networks, and the device further includes:

[0141] The emergency repair module is used to perform emergency repairs on different leased line services by deploying multiple POP devices to connect to different transmission networks; wherein, the transmission network includes one or more of PTN transmission network, SDH transmission network, MPLS transmission network, MSTP transmission network and OTN transmission network.

[0142] In this embodiment of the invention, the device further includes:

[0143] The networking module is used to implement Hub-Spoke networking between the CPE device and the POP device by using the CPE device as a Spoke-CPE node and the POP device as a Hub-CPE node; wherein, the LAN side of the POP device is connected to the transmission network and the WAN side is connected to the Internet; an L2TP tunnel, a VXLAN tunnel, and an IPSec tunnel are configured between the POP device and the CPE device; the WAN side of the CPE device is connected to the POP device and the WAN side is connected to the branch router.

[0144] In summary, in this embodiment of the invention, in the event of a network leased line interruption, network communication services can be quickly restored by connecting CPE devices to both ends of the faulty optical cable. Alternatively, if a POP device is configured at headquarters and an optical cable fault occurs at the access layer of a branch corresponding to headquarters, network communication services can be quickly restored by replacing the faulty transmission equipment with a CPE device. By employing the above methods, the CPE device is pre-configured with line repair data. When an optical cable fault occurs, the CPE device can be directly connected to both ends of the faulty optical cable to restore the network. Alternatively, if a POP device is configured at headquarters, and an optical cable fault occurs at the branch access layer, the CPE device can be directly used to replace the original transmission equipment to restore the network. After the network is restored, line personnel can continue to troubleshoot and repair the optical cable. This method reduces the interruption time of network communication services, meets the fault handling principle of "restoring service first, then repairing," quickly restores communication services, minimizes the impact of line faults on users, and provides maintenance departments with more time for optical cable repair.

[0145] As the device embodiment is basically similar to the method embodiment, the description is relatively simple, and relevant parts can be found in the description of the method embodiment.

[0146] This invention also provides an electronic device, including: a processor, a memory, and a computer program stored in the memory and capable of running on the processor. When the computer program is executed by the processor, it implements the various processes of the above-described communication line fault repair method embodiment and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0147] This invention also provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the various processes of the above-described communication line fault repair method embodiment and achieves the same technical effect. To avoid repetition, it will not be described again here.

[0148] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0149] Those skilled in the art will understand that embodiments of the present invention can be provided as methods, apparatus, or computer program products. Therefore, embodiments of the present invention can take the form of entirely hardware embodiments, entirely software embodiments, or embodiments combining software and hardware aspects. Furthermore, embodiments of the present invention can take the form of computer program products implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0150] Embodiments of the present invention 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 invention. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing terminal device to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing terminal device, generate instructions for implementing the flowchart illustrations and / or block diagrams. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0151] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing terminal device to operate in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0152] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal equipment, causing a series of operational steps to be performed on the computer or other programmable terminal equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable terminal equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0153] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present invention.

[0154] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0155] The present invention has provided a detailed description of a communication line fault repair method, a communication line fault repair device, an electronic device, and a computer-readable storage medium. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A method of communication line fault repair, characterized by, The method comprises: In the case of network line interruption, by connecting CPE devices at both ends of the faulty optical cable respectively, the network communication service of the network line is recovered; Or, In the case of optical cable failure in the access layer of the corresponding branch with the POP device configured at the headquarters, by using the CPE device to replace the faulty transmission device, the network communication service of the network line is recovered; The CPE device is configured with a SIM card, and the recovery of the network communication service of the network line comprises: Access the core network through the SIM card, and establish a VXLAN tunnel between the accessed CPE device and / or the POP device through the network channel of the core network; Through the VXLAN tunnel, the network communication service of the network line is recovered; The CPE device is configured with a data card, and the establishment of the VXLAN tunnel between the accessed CPE device and / or the POP device through the network channel of the core network comprises: Obtain an unchangeable IP address through the data card, and establish an L2TP tunnel through the public IP address between the SDWAN POP point VCPE device and the CPE device through the L2TP protocol; After establishing the L2TP tunnel, a private IP address obtained through the L2TP tunnel is used to establish a VXLAN tunnel between the accessed CPE device and / or the POP device.

2. The method of claim 1, wherein, The CPE device is configured with an APN card, and the establishment of the VXLAN tunnel between the accessed CPE device and / or the POP device through the network channel of the core network comprises: Obtain a fixed IP address through the APN card, and use the obtained IP address as the tunnel address of the VXLAN tunnel to establish a VXLAN tunnel between the accessed CPE device and / or the POP device.

3. The method of claim 2, wherein, The method further comprises: Transmitting layer 2 data or layer 3 data transparently in the layer 3 network of the network line through VXLAN / IPSec over L2TP technology.

4. The method of claim 1, wherein, The network line comprises a plurality of transmission networks, and the method further comprises: By deploying a plurality of POP devices to respectively connect different transmission networks, different line services are repaired; wherein the transmission network comprises one or more of PTN transmission network, SDH transmission network, MPLS transmission network, MSTP transmission network and OTN transmission network.

5. The method of claim 4, wherein, The method further comprises: By taking the CPE device as a Spoke-CPE node and the POP device as a Hub-CPE node, a Hub-Spoke network is realized between the CPE device and the POP device; wherein the LAN side of the POP device is connected to the transmission network, and the WAN side is connected to the Internet; the POP device and the CPE device are configured with L2TP tunnel, VXLAN tunnel and IPSec tunnel; the WAN side of the CPE device is connected to the POP device, and the WAN side is connected to the branch router.

6. A communication line fault repair apparatus, characterized by comprising: The device comprises: The first recovery module is configured to, in the case of network line interruption, recover network communication services of the network line by connecting CPE devices at both ends of the faulty optical cable respectively. Or, The second recovery module is configured to, in the case of optical cable failure in the access layer of a corresponding branch when the headquarters is configured with a POP device, recover network communication services of the network line by replacing the faulty transmission device with a CPE device. The CPE device is configured with a SIM card, and the first recovery module or the second recovery module comprises: A tunnel establishment submodule is configured to access a core network through the SIM card, establish a VXLAN tunnel between the connected CPE device and / or the POP device through a network channel of the core network. A recovery submodule is configured to recover network communication services of the network line through the VXLAN tunnel. The CPE device is configured with a data card, and the tunnel establishment submodule comprises: A first tunnel establishment unit is configured to obtain an un-fixed IP address through the data card, and establish an L2TP tunnel with an SDWAN POP point VCPE device through a public network IP address through an L2TP protocol. A second tunnel establishment unit is configured to, after establishing the L2TP tunnel, establish a VXLAN tunnel between the connected CPE device and / or the POP device through a private IP address obtained through the L2TP tunnel.

7. An electronic device, comprising: It comprises: A processor, a memory, and a computer program stored on the memory and capable of running on the processor, wherein the computer program is executed by the processor to implement the communication line fault repair method according to any one of claims 1-5.

8. A computer-readable storage medium, characterized in that, The computer program is stored on the computer readable storage medium, and the computer program is executed by the processor to implement the communication line fault repair method according to any one of claims 1-5.

Images