CN116633428A - Method, device, electronic equipment and storage medium for emergency repair of communication line failure - Google Patents

Abstract

The embodiment of the invention provides a communication line fault rush-repair method, a device, electronic equipment and a storage medium, wherein the method comprises the following steps: under the condition of network private line interruption, network communication service of the network private line is restored by accessing CPE equipment at two ends of the fault optical cable respectively; or, when the headquarter is configured with the POP equipment and the optical cable fault occurs to the access layer corresponding to the branch, the CPE equipment is adopted to replace the failed transmission equipment, so that the network communication service of the network dedicated line is recovered. By adopting the method, the CPE equipment is pre-configured with line repair data, when the optical cable faults, the CPE equipment is directly connected to the two ends of the fault optical cable to rob the network, or the headquarters are configured with the POP equipment, when the optical cable of the branch access layer breaks down, the CPE equipment is directly used for replacing the original transmission equipment to rob the network, thereby meeting the fault processing principles of 'preemptive and post-rush repair', and rapidly recovering the communication service.

Description

Method, device, electronic equipment and storage medium for emergency repair of communication line failure

technical field

The present invention relates to the technical field of communication, in particular to a communication line failure emergency repair method, a communication line failure emergency repair device, an electronic device and a computer-readable storage medium.

Background technique

With the growth of government-enterprise leased line users, the workload of leased line maintenance is increasing. In order to ensure customer service experience, improve customer satisfaction, reduce service interruption duration, and reduce customer complaints, the service requirements for various business recovery time limits are clearly stipulated to shorten the fault duration and improve user perception.

According to big data statistics on the causes of government-enterprise leased line business failures, the proportion of user services blocked due to unexpected optical path interruptions is on the rise. At present, the traditional optical cable emergency repair solution is still used to restore user services. The emergency repair is highly complex and takes a long time to process. Due to space constraints, the user service recovery time limit is uncontrollable and the risk of timeout is high.

Contents of the invention

In view of the above problems, the embodiments of the present invention are proposed to provide a communication line fault repair method, a corresponding communication line fault repair device, an electronic device, and a communication line fault repair method that overcome the above problems or at least partially solve the above problems A computer readable storage medium.

The embodiment of the present invention discloses a communication line failure emergency repair method, the method comprising:

When the network dedicated line is interrupted, the network communication service of the network dedicated line is restored by connecting the CPE equipment at both ends of the faulty optical cable;

or,

When the headquarter is equipped with POP equipment and the access layer of the corresponding branch has an optical cable failure, the network communication service of the network leased line is restored by replacing the failed transmission equipment with CPE equipment.

Optionally, the CPE device is configured with a SIM card, and the restoration of the network communication service of the network dedicated line includes:

accessing the core network through the SIM card, and establishing 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 leased line is restored.

Optionally, the CPE device is configured with a data card, and establishing a VXLAN tunnel between the accessed CPE device and/or the POP device through the network channel of the core network includes:

Obtain a non-fixed IP address through the data card, and establish an L2TP tunnel with the SDWAN POP point VCPE device through the public network IP address through the L2TP protocol;

After the L2TP tunnel is established, a VXLAN tunnel is established between the accessed CPE device and/or the POP device through the private IP address obtained through the L2TP tunnel.

Optionally, the CPE device is configured with an APN card, and establishing a VXLAN tunnel between the accessed CPE device and/or the POP device through the network channel of the core network includes:

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.

Optionally, the method also includes:

Transparently transmit layer-2 data or layer-3 data in the layer-3 network of the network leased line through VXLAN/IPSec over L2TP technology.

Optionally, the dedicated network line includes multiple transmission networks, and the method further includes:

By deploying a plurality of POP devices to connect to different transmission networks respectively, different dedicated line services are repaired; wherein, the transmission network includes PTN transmission network, SDH transmission network, MPLS transmission network, MSTP transmission network and OTN transmission network one or more of .

Optionally, the method also includes:

By using the CPE device as a Spoke-CPE node and the POP device as a Hub-CPE node, the Hub-Spoke networking is realized between the CPE device and the POP device; wherein, the POP device The LAN side 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 Connect to branch routers.

The embodiment of the present invention also discloses a communication line failure emergency repair device, the device includes:

The first recovery module is used to restore the network communication service of the network dedicated line by connecting to the CPE equipment at both ends of the faulty optical cable when the network dedicated line is interrupted;

or,

The second recovery module is used to restore the network communication service of the network leased line by replacing the failed transmission equipment with CPE equipment when the headquarter is equipped with POP equipment and the access layer of the corresponding branch has an optical cable failure.

Optionally, the CPE device is configured with a SIM card, and the first recovery module or the second recovery module includes:

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;

The restoration submodule is configured to restore the network communication service of the dedicated network line through the VXLAN tunnel.

Optionally, the CPE device is configured with a data card, and the tunnel establishment submodule includes:

The first tunnel establishment unit is used to obtain a non-fixed IP address through the data card, and establish an L2TP tunnel with the SDWAN POP point VCPE device through the public network IP address through the L2TP protocol;

The second tunnel establishing unit is configured to establish a VXLAN tunnel between the accessed CPE device and/or the POP device through the private IP address obtained through the L2TP tunnel after the L2TP tunnel is established.

Optionally, the CPE device is configured with an APN card, and the tunnel establishment submodule includes:

A third tunnel establishment unit, configured to obtain a fixed IP address through the APN card, and use the obtained IP address as a tunnel address for establishing a VXLAN tunnel to establish a VXLAN between the accessed CPE device and/or the POP device tunnel.

Optionally, the device also includes:

The transparent transmission module is used to transparently transmit layer-2 data or layer-3 data in the layer-3 network of the network leased line through VXLAN/IPSec over L2TP technology.

Optionally, the dedicated network line includes multiple transmission networks, and the device further includes:

The emergency repair module is used to perform emergency repairs on different private line services by deploying a plurality of POP devices respectively connected to different transmission networks; wherein, the transmission network includes a PTN transmission network, an SDH transmission network, an MPLS transmission network, and an MSTP transmission network and one or more of the OTN transmission network.

Optionally, the device also includes:

A networking module, configured to implement Hub-Spoke networking between the CPE device and the POP device by using the CPE device as a Spoke-CPE node and using 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 The POP device described above is connected to the branch router on the WAN side.

The embodiment of the present invention also discloses an electronic device, including: a processor, a memory, and a computer program stored on the memory and capable of running on the processor. When the computer program is executed by the processor, the A communication line failure emergency repair method as described above.

The embodiment of the present invention also discloses a computer-readable storage medium, where a computer program is stored on the computer-readable storage medium, and when the computer program is executed by a processor, the above-mentioned communication line failure emergency repair method is implemented.

Embodiments of the present invention include the following advantages:

In the embodiment of the present invention, when the network leased line is interrupted, the network communication service of the network leased line can be quickly restored by connecting CPE equipment at both ends of the faulty optical cable respectively, or the headquarters is equipped with a POP device, and the branch corresponding to the headquarters In the event of an optical cable failure at the access layer, CPE equipment can be used to replace the failed transmission equipment to quickly restore the network communication services of the network leased line. By using the above method, the CPE equipment is pre-configured with line repair data. When an optical cable fault occurs, the CPE equipment can be directly connected to both ends of the faulty optical cable to rush through the network. Alternatively, the POP equipment is configured at the headquarters. When an optical cable fails, the network can be connected directly by replacing the original transmission equipment with the CPE equipment. After the network is established, the line personnel can continue to check the line breakpoints and repair the optical cable. This method reduces the interruption time of network communication services and meets the requirements of "first According to the fault handling principle of "rush through and repair later", the communication service can be quickly restored, the impact of line failure on users can be minimized, and at the same time, more time can be obtained for the maintenance department to repair optical cables.

Description of drawings

Fig. 1 is a flow chart of the steps of a communication line fault repair method provided by an embodiment of the present invention;

Fig. 2 is a flow chart of the steps of another communication line fault repair method provided by an embodiment of the present invention;

Fig. 3 is a schematic diagram of service data encapsulation according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of an application scenario in which an APN card is used to establish a corresponding tunnel according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of an application scenario in which a data card is used to establish a corresponding tunnel according to an embodiment of the present invention;

Fig. 6 is a schematic diagram of VLAN transparent transmission in the emergency repair process of the embodiment of the present invention;

Fig. 7 is a schematic diagram of the emergency repair system of the embodiment of the present invention;

Fig. 8 is a point-to-point and point-to-multipoint emergency repair system schematic diagram of the present invention;

Fig. 9 is a schematic diagram of the technical implementation process of the embodiment of the present invention;

Fig. 10 is a schematic diagram of the process of packet encapsulation and decapsulation in the Hub-Spoke networking of the embodiment of the present invention;

Fig. 11 is a schematic diagram of the deployment mode of the emergency repair system of the present invention;

Fig. 12 is a schematic diagram of an implementation scenario of an embodiment of the present invention;

Fig. 13 is a structural block diagram of a device for emergency repair of a communication line failure provided by an embodiment of the present invention.

Detailed ways

In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some embodiments of the present invention, rather than Full examples. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention belong to the protection scope of the present invention.

Government-enterprise private line is to rely on rich transmission network resources to provide various private line access methods for government and enterprises, and to help customers access the Internet (Internet) and private networks, and carry out various application services. With the growth of government-enterprise leased line users, the workload of leased line maintenance is increasing. In order to ensure customer service experience, improve customer satisfaction, reduce service interruption duration, and reduce customer complaints, the service requirements for various business recovery time limits are clearly stipulated to shorten the fault duration and improve user perception.

According to big data statistics on the causes of government-enterprise leased line business failures, the proportion of user services blocked due to unexpected optical path interruptions is on the rise. The situations where there is a potential interruption of optical fiber cables are as follows:

The user's physical site does not have the second optical cable routing resource and only realizes single-line access. This problem is especially prominent in remote areas such as the user branch side and towns;

Some dual-wire access nodes have false loops such as co-cables and co-routes, and once interrupted, they cannot provide protection switching paths;

The optical attenuation of existing optical cables due to aging increases, resulting in poor service quality or even interruption;

Uncertain municipal construction and natural disasters cause accidental cable disconnection;

At present, the traditional optical cable emergency repair solution is still used to restore user services. The emergency repair is highly complex and takes a long time to process. Due to space constraints, the user service recovery time limit is uncontrollable and the risk of timeout is high.

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

One of the core ideas of the embodiments of the present invention is that, in the case of a network leased line interruption, the network communication service of the network leased line can be quickly restored by connecting CPE devices at both ends of the faulty optical cable, or a POP device is configured at the headquarters. In the case of an optical cable failure at the access layer of the branch corresponding to the headquarters, the network communication service of the network leased line can be quickly restored by replacing the faulty transmission equipment with CPE equipment. By using the above method, the CPE equipment is pre-configured with line repair data. When an optical cable fault occurs, the CPE equipment can be directly connected to both ends of the faulty optical cable to rush through the network. Alternatively, the POP equipment is configured at the headquarters. When an optical cable fails, the network can be connected directly by replacing the original transmission equipment with the CPE equipment. After the network is established, the line personnel can continue to check the line breakpoints and repair the optical cable. This method reduces the interruption time of network communication services and meets the requirements of "first According to the fault handling principle of "rush through and repair later", the communication service can be quickly restored, the impact of line faults on users can be minimized, and at the same time, more precious repair time can be obtained for the maintenance department.

Referring to FIG. 1 , it shows a flow chart of the steps of a communication line fault repair method provided by an embodiment of the present invention, which may specifically include the following steps:

Step 101, when the network dedicated line is interrupted, the network communication service of the network dedicated line is restored by respectively connecting CPE equipment at both ends of the faulty optical cable.

CPE, the English full name is Customer Premise Equipment, and the Chinese is "client equipment" or "client side equipment". It refers to user network access equipment, generally including Modem (modem), router, switch, firewall and other equipment. CPE is a key component of the communication network and is responsible for transmitting the data stream provided by the network provider to the user terminal equipment.

In the embodiment of the present invention, the data required for repairing the line can be pre-configured in the CPE equipment. In the case of a network leased line interruption, the network communication service can be quickly restored by connecting the CPE equipment at both ends of the faulty optical cable. In this case, the CPE device configures the data required for line repair in a point-to-point manner.

Step 102, when the headquarter is equipped with POP equipment and the access layer of the corresponding branch has an optical cable failure, replace the failed transmission equipment with CPE equipment to restore the network communication service of the network leased line.

PoP (Point-of-Presence) means entry point. The PoP point is located outside the edge of the enterprise network and is the entry point for accessing the interior of the enterprise network. Services provided by the outside world enter through PoP points.

The dedicated network line in the embodiment of the present invention can be a network from one headquarters to multiple branches, POP equipment can be configured at the headquarters, and in the case of an optical cable failure at the access layer of the corresponding branch, CPE equipment can be used to replace the faulty transmission The device establishes a tunnel with the POP device to realize the rapid restoration of the private line network communication service. In this case, the CPE device configures the data required for line repair in a point-to-multipoint manner.

To sum up, in the embodiment of the present invention, when the network leased line is interrupted, the network communication service of the network leased line can be quickly restored by connecting the CPE equipment at both ends of the faulty optical cable, or the headquarters is equipped with a POP device, and the headquarters In the case of an optical cable failure at the access layer of the corresponding branch, the network communication service of the network leased line can be quickly restored by replacing the failed transmission equipment with CPE equipment. By using the above method, the CPE equipment is pre-configured with line repair data. When an optical cable fault occurs, the CPE equipment can be directly connected to both ends of the faulty optical cable to rush through the network. Alternatively, the POP equipment is configured at the headquarters. When an optical cable fails, the network can be connected directly by replacing the original transmission equipment with the CPE equipment. After the network is established, the line personnel can continue to check the line breakpoints and repair the optical cable. This method reduces the interruption time of network communication services and meets the requirements of "first According to the fault handling principle of "rush through and repair later", the communication service can be quickly restored, the impact of line failure on users can be minimized, and at the same time, more time can be obtained for the maintenance department to repair optical cables.

Referring to FIG. 2 , it shows a flow chart of the steps of another communication line fault repair method provided by the embodiment of the present invention. The CPE device is equipped with a SIM card, which may specifically include the following steps:

Step 201, when the dedicated network line is interrupted, connect CPE equipment at both ends of the faulty optical cable, or, if the headquarters is equipped with POP equipment, and the optical cable failure occurs at the access layer of the corresponding branch, use CPE equipment to replace the faulty cable. transmission device.

Step 202, access the core network through the SIM card, and establish a VXLAN tunnel between the connected CPE devices and/or POP devices through the network channel of the core network.

A SIM (Subscriber Identity Module) card is a subscriber identity card held by a mobile user of the GSM (Global System for Mobile Communications, Global System for Mobile Communications).

VXLAN (Virtual eXtensible Local Area Network, Virtual Extended Local Area Network) is a tunneling technology that can establish a Layer 2 Ethernet network tunnel on the basis of a Layer 3 network, thereby realizing cross-regional Layer 2 interconnection.

The data required for line repair can be pre-configured in the CPE device, and a SIM card can be inserted into the CPE device to access the core network through the SIM card, and then communicate with the CPE device on the other side or the center side through the network channel of the core network VXLAN tunnels are established between POP devices to form a Layer 2 emergency channel.

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, which may specifically include the following Substeps:

Obtain a non-fixed IP address through the data card, and establish an L2TP tunnel with the SDWAN POP point VCPE device through the public network IP address through the L2TP protocol;

After the L2TP tunnel is established, the private IP address obtained through the L2TP tunnel establishes a VXLAN tunnel between the connected CPE devices and/or POP devices.

Among them, the VXLAN tunnel is used to transmit Layer 2 data.

IP address (Internet Protocol Address) refers to the Internet Protocol address, also translated into the Internet Protocol address. The IP address is a unified address format provided by the IP protocol, which assigns a logical address to every network and every host on the Internet.

Layer Two Tunneling Protocol (Layer Two Tunneling Protocol, L2TP) is a virtual tunneling protocol, usually used in a virtual private network. The L2TP protocol itself does not provide encryption and reliability verification functions, and can be used in conjunction with security protocols to realize encrypted data transmission.

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

Virtual customer premises equipment (VCPE), also known as cloud CPE, uses software-based functions instead of proprietary hardware, and can be understood as a virtualized software-based CPE.

In the embodiment of the present invention, a data card, such as a 5G data card, can be configured for the CPE device, and a non-fixed IP address can be obtained through the data card, and then an L2TP tunnel can be established with the SDWAN POP point VCPE device through the public network IP address through the L2TP protocol. After the L2TP tunnel, the private IP address obtained by L2TP is used to establish a VXLAN tunnel between the connected CPE devices and/or POP devices to transmit Layer 2 data.

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, which may specifically include the following Substeps:

Obtain a fixed IP address through the APN card, and use the obtained IP address as the tunnel address for establishing a VXLAN tunnel to establish a VXLAN tunnel between the connected CPE devices and/or POP devices.

APN (Access Point Name, Access Point) refers to a network access technology. It is a parameter that must be configured when surfing the Internet. It determines the access method to access the network.

In another tunnel establishment method, an APN card can be configured for the emergency repair CPE device, a fixed IP address can be obtained through the APN card, and the obtained IP address can be used as the tunnel address for establishing a VXLAN tunnel on the connected CPE device and/or POP device Establish a VXLAN tunnel between them, and transmit Layer 2 data based on the VXLAN tunnel. In a point-to-point system, the IP addresses obtained by the CPEs at both ends can be routed.

Step 203, recovering the network communication service of the dedicated network line through the VXLAN tunnel.

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

In an optional embodiment of the present invention, it may specifically include the following steps:

Through the VXLAN/IPSec over L2TP technology, the layer 2 data or layer 3 data is transparently transmitted in the layer 3 network of the dedicated network.

Internet Security Protocol (Internet Protocol Security, IPSec) is a protocol package, which protects the network transmission protocol cluster (a collection of some interrelated protocols) of the IP protocol by encrypting and authenticating the packets of the IP protocol. VXLAN/IPSec over L2TP means that packets are first encapsulated with VXLAN, then encapsulated with IPSec, and finally encapsulated with L2TP.

In the embodiment of the present invention, the VXLAN/IPSec over L2TP technology can be used to transparently transmit layer-2 or layer-3 data in a layer-3 network, thereby realizing emergency access to network communication services. As shown in FIG. 3 , it is a schematic diagram of service data encapsulation according to an embodiment of the present invention. The original data can be Layer 2 or Layer 3 data, first encapsulated with VXLAN, then encapsulated with IPSec, and finally encapsulated with L2TP.

In the present invention, the L2TP tunnel NAT traversal (NAT traversal) function is used to realize the cross-domain three-layer network to realize networking.

In the present invention, through the data encryption function of the IPSec tunnel (transmission mode), the safe transmission of user services in the Internet environment is guaranteed.

In the present invention, L2VPN (Layer2Virtual Private Network, Layer 2 Virtual Private Network) and L3VPN (Layer3Virtual Private Network, Layer 3 Virtual Private Network) intercommunication of different users is realized through VXLAN tunnel service differentiation and networking functions.

In an optional embodiment of the present invention, the dedicated network line includes multiple transmission networks, and may specifically include the following steps:

By deploying multiple POP devices to connect to different transmission networks, repair different leased line services.

In the embodiment of the present invention, multiple POP devices can be deployed at the user headquarters to connect to different transmission networks respectively, so as to meet different emergency repair requirements of private line services. Among them, the transmission network includes PTN (Packet Transport Network, packet transport network) transmission network, SDH (Synchronous Digital Hierarchy, synchronous digital system) transmission network, MPLS (Multi-Protocol Label Switching, multi-protocol label switching) transmission network, MSTP (Multi-Protocol Label Switching) transmission network, -ServiceTransport Platform,

One or more of a multi-service transport platform) transport network and an OTN (Optical Transport Network, optical transport network) transport network.

In an optional embodiment of the present invention, it may specifically include the following steps:

By using the CPE device as a Spoke-CPE node and the POP device as a Hub-CPE node, the Hub-Spoke networking is implemented between the CPE device and the POP device.

Among them, the LAN side of the POP device is connected to the transmission network, and the WAN side is connected to the Internet; L2TP tunnels, VXLAN tunnels, and IPSec tunnels 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.

The core idea of Hub-Spoke VPN (Virtual Private Network, virtual private network) is to set up a central access control device in the VPN, and other users' mutual visits are all performed through the central access control device. LAN (Local Area Network, local area network) is a regional network formed in a local area, and WAN (Wide Area Network, wide area network) is a remote network connecting computers in different regional area networks or metropolitan area networks.

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

In the specific implementation, the POP equipment for emergency repair can be deployed in the comprehensive service area or the aggregation room, and its LAN side is connected to the transmission network. Multiple units can be deployed to connect to PTN, SDH, MPLS, OTN and other transmission networks respectively. The network from the device to the headquarters router. The WAN side of the emergency repair POP device is connected to the Internet, and a fixed public network IP is used for dial-up registration of the emergency repair CPE device. Repair POP equipment and configure L2TP, VXLAN, and IPSec tunnels. The WAN side of the emergency repair CPE device is connected to the emergency repair POP device, and L2TP, VXLAN, and IPSec tunnels are configured. The LAN side of the CPE device is connected to the branch router, and the service VLAN (Virtual Local Area Network, virtual local area network) is configured.

The above emergency repair method requires that when the emergency repair CPE equipment or emergency repair POP equipment is used on the A side and the Z end, the UNI interface connected to the user equipment is an Ethernet interface, transparently transmits GE or FE services, and supports VLAN tags to meet the user's second and third layers. Alternative transmission of business.

Referring to Figure 4, it is a schematic diagram of the application scenario of using the APN card to establish the corresponding tunnel according to the embodiment of the present invention. Use the 5G APN card to obtain a fixed IP address after dialing, and this address can be directly used as the tunnel address for establishing the VXLAN tunnel.

Referring to Figure 5, it is a schematic diagram of an application scenario in which a data card is used to establish a corresponding tunnel according to an embodiment of the present invention. Using a 5G data card, a non-fixed IP address is obtained after dialing, and a VXLAN tunnel cannot be directly established. It is necessary to establish an L2TP tunnel before establishing a VXLAN tunnel. The emergency repair POP device provides a fixed public network IP address, and the IP address obtained after dialing up the 5G data card can access the external network, and can directly communicate with the public network IP of the emergency repair POP device. First establish the L2TP tunnel, repair the POP device as the LNS (L2TP Network Server, L2TP Network Server), repair the CPE device as the LAC (L2TP Access Concentrator, L2TP Access Concentrator), after the establishment of the L2TP tunnel, the repaired CPE device can dial to obtain a fixed IP address, and then the address obtained after L2TP dial-up can be used as the tunnel address for establishing a VXLAN tunnel.

Referring to FIG. 6 , it is a schematic diagram of VLAN transparent transmission in the emergency repair process of an embodiment of the present invention, and transparently transmits layer 2 data or layer 3 data in a layer 3 network through VXLAN/IPSecover L2TP technology.

Referring to Fig. 7, it is a schematic diagram of the emergency repair system according to the embodiment of the present invention, including the emergency repair CPE equipment/POP equipment and the SIM card inserted on the equipment, and consists of transmission networks such as PTN, SDH, MPLS, OTN and the Internet. The emergency repair system of the present invention can be divided into two types, point-to-point and point-to-multipoint, as shown in FIG. 8 . Among them, the point-to-point system requires at least two emergency repair CPE equipment to provide emergency repair solutions for the interruption of the access layer optical cable of a single user branch, which is characterized by flexibility. The point-to-multipoint system requires at least one emergency repair POP device and n emergency repair CPE devices, which can provide emergency repair services for multiple user branches and user headquarters, and realize the emergency recovery of the entire link, with a wider scope of application. In the point-to-multipoint system, in order to cover more leased line scenarios and a larger area, n emergency repair POP devices can be deployed to connect to the PTN transmission network, MSTP transmission network, and OTN transmission network respectively to meet different private line business emergency repair needs. Further, the technical implementation can be as shown in Figure 9, by deploying CPE equipment, inserting a SIM card into the CPE equipment, accessing the core network through the SIM card, and then communicating with the CPE equipment or center on the other side through the network channel of the core network A VXLAN tunnel is established between the POP devices on the side to form a Layer 2 emergency channel.

Further, in the emergency repair method of the present invention, the emergency repair CPE equipment can be used as the Spoke-CPE node, and the emergency repair POP equipment can be used as the Hub-CPE node, and the Hub-Spoke networking is completed between the two. The process of message encapsulation and decapsulation is as follows: Figure 10 shows.

Further, the deployment manner of the emergency repair system may be as shown in FIG. 11 . The emergency repair POP equipment can be deployed in the comprehensive service area or the convergence computer room, and its LAN side is connected to the transmission network. Multiple units can be deployed to connect to PTN, SDH, MPLS, OTN and other transmission networks respectively. network. The WAN side of the emergency repair POP device is connected to the Internet, and a fixed public network IP is used for dial-up registration of the emergency repair CPE device. Repair POP equipment and configure L2TP, VXLAN, and IPSec tunnels. The WAN side of the emergency repair CPE device is connected to the emergency repair POP device, and L2TP, VXLAN, and IPSec tunnels are configured. Connect the LAN side of the CPE to the branch router and configure service VLANs.

Further, as shown in FIG. 12 , it is a schematic diagram of an implementation scenario of an embodiment of the present invention. Insert the 5G data card into the emergency repair CPE device in advance, and obtain a non-fixed IP address after dialing; configure the L2TP data and VXLAN tunnel in advance for the emergency repair POP device, establish an L2TP tunnel between the emergency repair CPE and the emergency repair POP, and obtain a fixed IP address after the emergency repair CPE completes the L2TP dial-up. That is, as the tunnel IP address; the emergency repair POP is directly connected to the transmission network through an optical port or an electrical port, and transparently transmits VLAN information according to customer services, supporting multiple VLANs; the user's core router can directly communicate with the emergency repair POP through the emergency repair line; the emergency repair CPE is configured in advance VXLAN tunnel, confirm the VLAN information of the customer's business, and bind this VLAN to the VXLAN tunnel; test the PC (computer) to verify whether the business IPs of both ends can communicate with each other, and generally meet the conditions for emergency repair.

To sum up, in the embodiment of the present invention, when the network leased line is interrupted, the network communication service of the network leased line can be quickly restored by connecting the CPE equipment at both ends of the faulty optical cable, or the headquarters is equipped with a POP device, and the headquarters In the case of an optical cable failure at the access layer of the corresponding branch, the network communication service of the network leased line can be quickly restored by replacing the failed transmission equipment with CPE equipment. By using the above method, the CPE equipment is pre-configured with line repair data. When an optical cable fault occurs, the CPE equipment can be directly connected to both ends of the faulty optical cable to rush through the network. Alternatively, the POP equipment is configured at the headquarters. When an optical cable fails, the network can be connected directly by replacing the original transmission equipment with the CPE equipment. After the network is established, the line personnel can continue to check the line breakpoints and repair the optical cable. This method reduces the interruption time of network communication services and meets the requirements of "first According to the fault handling principle of "rush through and repair later", the communication service can be quickly restored, the impact of line faults on users can be minimized, and at the same time, more precious repair time can be obtained for the maintenance department.

The present invention integrates 5G slicing private network and SDWAN technology, and realizes transparent transmission of user's second-layer or third-layer service data in the 5G three-layer network through VXLAN/IPSec over L2TP technology, thereby realizing emergency emergency communication. The invention creates a system and a configuration model corresponding to the emergency repair method, and the method, system and configuration model are not only suitable for emergency repair, but also suitable for realizing service protection on dedicated lines lacking optical path protection. The CPE data of the present invention are all pre-configured. When a fault occurs, the device can get the breakpoint and connect the pigtail to restore the service. If there is a VLAN, it is only necessary to match the VLAN data of the CPE with the service VLAN data or Modulate the link to transparent transmission mode. The technical solution of the present invention has strong applicability, and is suitable for locating line fault breakpoints in various production scenarios of operators.

The invention combines wireless and wired to realize three-dimensional protection of services, and the service reliability is higher. The present invention combines 5G slicing private network technology and SDWAN technology to virtualize resources, accelerate network service distribution efficiency, improve availability, improve service performance, and realize automatic network deployment and management.

It should be noted that, for the method embodiment, for the sake of simple description, it is expressed as a series of action combinations, but those skilled in the art should know that the embodiment of the present invention is not limited by the described action sequence, because According to the embodiment of the present invention, certain steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

Referring to FIG. 13 , it shows a structural block diagram of a communication line fault emergency repair device provided by an embodiment of the present invention, which may specifically include the following modules:

The first recovery module 1301 is configured to restore the network communication service of the network leased line by respectively connecting CPE equipment at both ends of the faulty optical cable when the network leased line is interrupted;

or,

The second restoration module 1302 is configured to restore the network communication service of the network leased line by replacing the failed transmission equipment with CPE equipment when the headquarter is equipped with POP equipment and the optical cable failure occurs at the access layer of the corresponding branch.

In the embodiment of the present invention, the CPE device is configured with a SIM card, and the first recovery module or the second recovery module includes:

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;

The restoration submodule is configured to restore the network communication service of the dedicated network line through the VXLAN tunnel.

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

The first tunnel establishment unit is used to obtain a non-fixed IP address through the data card, and establish an L2TP tunnel with the SDWAN POP point VCPE device through the public network IP address through the L2TP protocol;

The second tunnel establishing unit is configured to establish a VXLAN tunnel between the accessed CPE device and/or the POP device through the private IP address obtained through the L2TP tunnel after the L2TP tunnel is established.

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

A third tunnel establishment unit, configured to obtain a fixed IP address through the APN card, and use the obtained IP address as a tunnel address for establishing a VXLAN tunnel to establish VXLAN between the accessed CPE device and/or the POP device tunnel.

In an embodiment of the present invention, the device further includes:

The transparent transmission module is used to transparently transmit layer-2 data or layer-3 data in the layer-3 network of the network leased line through VXLAN/IPSec over L2TP technology.

In the embodiment of the present invention, the dedicated network line includes multiple transmission networks, and the device further includes:

The emergency repair module is used to perform emergency repairs on different private line services by deploying a plurality of POP devices respectively connected to different transmission networks; wherein, the transmission network includes a PTN transmission network, an SDH transmission network, an MPLS transmission network, and an MSTP transmission network and one or more of the OTN transmission network.

In an embodiment of the present invention, the device further includes:

A networking module, configured to implement Hub-Spoke networking between the CPE device and the POP device by using the CPE device as a Spoke-CPE node and using 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 The POP device described above is connected to the branch router on the WAN side.

To sum up, in the embodiment of the present invention, when the network leased line is interrupted, the network communication service of the network leased line can be quickly restored by connecting the CPE equipment at both ends of the faulty optical cable, or the headquarters is equipped with a POP device, and the headquarters In the case of an optical cable failure at the access layer of the corresponding branch, the network communication service of the network leased line can be quickly restored by replacing the failed transmission equipment with CPE equipment. By using the above method, the CPE equipment is pre-configured with line repair data. When an optical cable fault occurs, the CPE equipment can be directly connected to both ends of the faulty optical cable to rush through the network. Alternatively, the POP equipment is configured at the headquarters. When an optical cable fails, the network can be connected directly by replacing the original transmission equipment with the CPE equipment. After the network is established, the line personnel can continue to check the line breakpoints and repair the optical cable. This method reduces the interruption time of network communication services and meets the requirements of "first According to the fault handling principle of "rush through and repair later", the communication service can be quickly restored, the impact of line failure on users can be minimized, and at the same time, more time can be obtained for the maintenance department to repair optical cables.

As for the device embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and for related parts, please refer to the part of the description of the method embodiment.

An embodiment of the present invention also provides an electronic device, including: a processor, a memory, and a computer program stored on the memory and capable of running on the processor, and the computer program is implemented when executed by the processor. The various processes in the embodiment of the above-mentioned communication line failure emergency repair method can achieve the same technical effect, so in order to avoid repetition, details are not repeated here.

The embodiment of the present invention also provides a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, each process of the above-mentioned communication line failure repair method embodiment is implemented, and The same technical effect can be achieved, so in order to avoid repetition, details will not be repeated here.

Each embodiment in this specification is described in a progressive manner, each embodiment focuses on the difference from other embodiments, and the same and similar parts of each embodiment can be referred to each other.

Those skilled in the art should understand that the embodiments of the present invention may be provided as methods, devices, or computer program products. Accordingly, embodiments of the invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, embodiments of the invention may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

Embodiments of the present invention are described with reference to flowcharts and/or block diagrams of methods, terminal devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each procedure and/or block in the flowchart and/or block diagram, and a combination of procedures and/or blocks in the flowchart and/or block diagram can be realized by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing terminal equipment to produce a machine such that instructions executed by the computer or processor of other programmable data processing terminal equipment Produce means for realizing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the The instruction means implements the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

These computer program instructions can also be loaded into a computer or other programmable data processing terminal equipment, so that a series of operation steps are executed on the computer or other programmable terminal equipment to produce computer-implemented processing, thereby The instructions executed above provide steps for implementing the functions specified in one or more procedures of the flowchart and/or one or more blocks of the block diagram.

Having described preferred embodiments of embodiments of the present invention, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, the appended claims are intended to be interpreted to cover the preferred embodiment and all changes and modifications which fall within the scope of the embodiments of the present invention.

Finally, it should also be noted that in this text, relational terms such as first and second etc. are only used to distinguish one entity or operation from another, and do not necessarily require or imply that these entities or operations, any such actual relationship or order exists. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or terminal equipment comprising a set of elements includes not only those elements, but also includes elements not expressly listed. Other elements mentioned above, or also include elements inherent in such process, method, article or terminal equipment. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or terminal device comprising said element.

A method for repairing communication line failures, a communication line failure repairing device, an electronic device, and a computer-readable storage medium provided by the present invention have been described in detail above. In this paper, specific examples are used to describe the methods of the present invention. The principle and the implementation mode have been set forth, and the description of the above examples is only used to help understand the method of the present invention and its core idea; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, in the specific implementation mode and application range There will be changes in all the above. In summary, the content of this specification should not be construed as limiting the present invention.

Claims (10)

1. A method for repairing a communication line fault, the method comprising:

under the condition that the network private line is interrupted, the network communication service of the network private line is recovered by respectively accessing CPE equipment at the two ends of the fault optical cable;

or alternatively, the first and second heat exchangers may be,

and under the condition that the headquarter is configured with POP equipment and the optical cable faults occur in the access layer corresponding to the branches, the CPE equipment is adopted to replace the faulty transmission equipment, so that the network communication service of the network dedicated line is recovered.

2. The method according to claim 1, wherein the CPE device is configured with a SIM card, and wherein the restoring network traffic of the network dedicated line comprises:

accessing a core network through the SIM card, and establishing a VXLAN tunnel between the accessed CPE equipment and/or the POP equipment through a network channel of the core network;

and recovering the network communication service of the network private line through the VXLAN tunnel.

3. The method according to claim 2, wherein the CPE device is configured with a data card, wherein the establishing a VXLAN tunnel between the CPE device and/or POP device accessed through a network channel of the core network comprises:

acquiring an unfixed IP address through the data card, and establishing an L2TP tunnel through an L2TP protocol and an SDWAN POP point VCPE device through a public network IP address;

After the L2TP tunnel is established, a VXLAN tunnel is established between the accessed CPE equipment and/or the POP equipment through the private IP address acquired by the L2TP tunnel.

4. The method according to claim 2, wherein the CPE device is configured with an APN card, wherein the establishing a VXLAN tunnel between the accessed CPE device and/or POP device through a network path of the core network comprises:

and acquiring a fixed IP address through the APN card, and establishing a VXLAN tunnel between the accessed CPE equipment and/or the POP equipment by taking the acquired IP address as a tunnel address for establishing the VXLAN tunnel.

5. The method according to claim 4, wherein the method further comprises:

and transmitting the two-layer data or the three-layer data in the three-layer network of the network special line through VXLAN/IPSec over L2TP technology.

6. The method of claim 1, wherein the network private line comprises a plurality of transport networks, the method further comprising:

the method comprises the steps of respectively butting different transmission networks by deploying a plurality of POP devices, and carrying out rush repair on different private line services; wherein the transport network comprises one or more of a PTN transport network, an SDH transport network, an MPLS transport network, an MSTP transport network and an OTN transport network.

7. The method of claim 6, wherein the method further comprises:

by using the CPE device as a Spoke-CPE node and using the POP device as a Hub-CPE node, hub-Spoke networking is realized between the CPE device and the POP device; wherein, the LAN side of the POP equipment is connected with the transmission network, and the WAN side is connected with the Internet; an L2TP tunnel, a VXLAN tunnel and an IPSec tunnel are configured between the POP equipment and the CPE equipment; the WAN side of the CPE device is in butt joint with the POP device, and the WAN side is in butt joint with the branch router.

8. A communication line fault rush-repair device, the device comprising:

the first recovery module is used for recovering network communication service of the network private line by respectively accessing CPE equipment at two ends of the fault optical cable under the condition that the network private line is interrupted;

or alternatively, the first and second heat exchangers may be,

and the second recovery module is used for recovering the network communication service of the network private line by adopting CPE equipment to replace the failed transmission equipment under the condition that the POP equipment is configured at the headquarter and the optical cable failure occurs at the access layer corresponding to the branch.

9. An electronic device, comprising: a processor, a memory and a computer program stored on the memory and capable of running on the processor, which computer program, when executed by the processor, implements a communication line fault preemption method as claimed in any of the claims 1-7.

10. A computer readable storage medium, wherein a computer program is stored on the computer readable storage medium, the computer program when executed by a processor implementing a communication line fault preemption method as claimed in any of claims 1-7.