WO2023207235A1

WO2023207235A1 - User plane management method, control plane device, and user plane device

Info

Publication number: WO2023207235A1
Application number: PCT/CN2023/073729
Authority: WO
Inventors: 花荣荣; 余舟毅; 彭涛
Original assignee: 华为技术有限公司
Priority date: 2022-04-28
Filing date: 2023-01-29
Publication date: 2023-11-02
Also published as: CN117014297A

Abstract

Disclosed are a user plane management method, a control plane device, and a user plane device. The method is applied to a first control plane device, wherein the first control plane device is connected to a plurality of user plane devices, which are further connected to a second control plane device. The method comprises: a first control plane device receiving a first message, wherein the first message is used for indicating that a management device of a first user plane device is switched to the first control plane device, and the first user plane device is any one of a plurality of user plane devices; and in response to the first message, the first control plane device managing the first user plane device.

Description

User plane management method, control plane equipment and user plane equipment

This application claims priority to the Chinese patent application with application number 202210471324.8 and the application name "User Plane Management Method, Control Plane Equipment and User Plane Equipment" submitted on April 28, 2022, the entire content of which is incorporated into this application by reference. middle.

Technical field

The present application relates to the field of network technology, and in particular to a user plane management method, control plane equipment and user plane equipment.

Background technique

With the launch of various new Internet services, network requirements for gateway performance are also constantly increasing. Taking broadband network gateway (BNG) as an example, the network has increasingly higher requirements for BNG in terms of maximum number of sessions, access bandwidth, and programmability capabilities.

In order to improve the performance of the gateway, the gateway decouples the control plane and user plane based on the software defined network/network function virtualization (SDN/NFV) architecture. In a scenario where the control plane and user plane are decoupled, in order to ensure reliability, two control plane devices are usually deployed for disaster recovery backup, and multiple user plane devices share the same primary and backup control plane devices.

When a communication failure occurs between a user plane device and the original active control plane device, the original standby control plane device adjusts its role as the active control plane device and notifies each user plane device to switch to the new active control plane device. The new active control plane device is responsible for managing each user plane device. The original primary control plane device adjusts its role to the backup control plane device and no longer manages individual user plane devices.

In the above solution, as long as a user plane device fails to communicate with the active control plane device, all user plane devices that share the same primary and backup control plane devices with the user plane device will switch from the original active control plane device to the original control plane device. Standby control plane equipment will expand the scope of faults. This switch will affect the business continuity of multiple user plane equipment and affect the working performance of the gateway.

Contents of the invention

This application provides a user plane management method, a control plane device and a user plane device, which can realize the switching of the control plane device of a single user plane device and ensure the business continuity of other user plane devices.

In the first aspect, this application provides a user plane management method. The method is applied to a first control plane device, the first control plane device is connected to multiple user plane devices, and the multiple user plane devices are also connected to a second control plane device. The method includes: the first control plane device receives the first message, The first message is used to instruct the management device of the first user plane device to switch to the first control plane device, and the first user plane device is any user plane device among multiple user plane devices; in response to the first message, the first control plane device The plane device manages the first user plane device.

In the above implementation manner of the present application, the user plane device sends a first message instructing the management device of the first user plane device to switch to the first control plane device. After receiving it, the first control plane device manages the first user plane device. , and in this The first user plane device is managed by the second control plane device. Therefore, the above process realizes the switching of the control plane device that manages the first user plane device, that is, the switching of the control plane device of a single user plane device. . This can avoid the problem in related technologies that the control plane devices of multiple user plane devices need to be switched simultaneously due to the active/standby switching method, ensuring the business continuity of other user plane devices and ensuring the working performance of the communication system.

In the implementation of the present application, the first message received by the first control plane device may be sent by a different device.

For example, the first message is sent by the first user plane device when it senses a failure of the second control plane device or a link failure with the second control plane device; for another example, the first message is sent by the second control plane device. Sent when the device senses a link failure with the first user plane device. Due to the above-mentioned generation and transmission method of the first message, the control plane device switching solution provided by this application is more flexible.

For example, the first control plane device receives the first message sent by the first user plane device.

For another example, the first control plane device receives the first message sent by the second control plane device.

In a possible implementation, before the first control plane device receives the first message, the first user plane device is managed by the second control plane device, and the first message is received under any of the following conditions: the first user Communication failure between the second control plane device and the second control plane device, change in priority of the second control plane device, change in load of the second control plane device, or restart of the second control plane device.

The communication failure between the first user plane device and the second control plane device includes two situations: link failure between the first user plane device and the second control plane device, and failure of the second control plane device.

The priority change of the second control plane device means that the priority of the second control plane device changes, and the changed priority is higher or lower than the priority required by the first user plane device. At this time, the second control plane device A user plane device needs to reselect a control plane device.

The load change of the second control plane device means that the load of the second control plane device changes, and the changed load is higher than the threshold. At this time, the first user plane device also needs to reselect the control plane device.

In a possible implementation, the first user plane device and the second user plane device belong to the same warm standby group, and after the first control plane device receives the first message, the first user plane device performs operations by the first control plane device. Management, the second user plane device is managed by the second control plane device. That is, user plane devices belonging to the same warm standby group can be managed by different control plane devices.

Among them, warm backup is implemented between user plane devices belonging to the same warm backup group.

In a possible implementation, the first control plane device stores management attributes of multiple user plane devices. The management attributes are remote management or local management. The first control plane device is used to manage users whose management attributes are local management. The first control plane device performs management; after the first control plane device receives the first message, it also includes: the first control plane device updates the management attribute of the first user plane device from remote management to local management, so that the first control plane device subsequently Which user plane devices are managed can be determined based on the management attributes of each user plane device. There is no need for control plane devices to make active and standby decisions, thus avoiding business continuity problems for user plane devices caused by active and standby decision-making solutions.

In a possible implementation, after the first control plane device receives the first message, the method further includes: the first control plane device sends a notification message to the second control plane device, and the notification message is used to notify the second control plane device to The management attribute of the first user plane device is updated from local management to remote management, so that the second control plane device stops managing the first user plane device.

In a possible implementation, the first control plane device manages the first user plane device, including: the first control plane device obtains user data of the first user plane device; the first control plane device based on the first user plane device user data to manage the first user plane device.

In the implementation of this application, the first control plane device may obtain the user data of the first user plane device in the following two ways:

Type 1: The first control plane device obtains user data of the first user plane device from a database server. The database server includes user data of user plane devices managed locally by the first control plane device and the second control plane device.

Second type: the first control plane device obtains the user data of the first user plane device from the second control plane device.

In a possible implementation, the method further includes: the first control plane device receiving a second message sent by the first user plane device, the second message being used to indicate a link failure between the first user plane device and the network; A control plane device sends the user data of the first user plane device to other user plane devices belonging to the same warm standby group as the first user plane device.

In a possible implementation, the method further includes: the first control plane device detects a fault of the first user plane device; the first control plane device sends the user data of the first user plane device to the device belonging to the first user plane device. Other user plane devices in the same warm standby group.

When the user plane device fails or the link between the user plane device and the network fails, the control plane device distributes the user data of the user plane device to other user plane devices in the same warm standby group, allowing other user plane devices in the warm standby group to perform Load sharing ensures service quality.

In a second aspect, this application provides a user plane management method. The method is applied to a first user plane device. The first user plane device is connected to a first control plane device and a second control plane device. The first control plane device and the second control plane device are connected to the first user plane device. The two control plane devices are both connected to multiple user plane devices, and the multiple user plane devices include a first user plane device. The method includes: the first user plane device sends a first message to the first control plane device, and the first message is used to Instruct the management device of the first user plane device to switch to the first control plane device.

In a possible implementation, before the first user plane device sends the first message to the first control plane device, the first user plane device is managed by the second control plane device,

The first user plane device sends the first message to the first control plane device, including: the first user plane device sends the first message to the first control plane device under any of the following conditions: the first user plane device and the second control plane Device communication failure, second control plane device priority change, second control plane device load change, second control plane device restart.

In a possible implementation, the first user plane device and the second user plane device belong to the same warm standby group. After the first user plane device sends the first message, the first user plane device is managed by the first control plane device. , the second user plane device is managed by the second control plane device.

In a possible implementation, before the first user plane device sends the first message to the first control plane device, the method further includes: the first user plane device obtains the information other than the second control plane device and is used to communicate with the first control plane device. Information about other control plane devices connected to the user plane device, and the other control plane devices include the first control plane device; the first user plane device determines the first control plane device among the other control plane devices based on the information about the other control plane devices.

In a possible implementation manner, the information of other control plane devices includes at least one of load information, number information, and priority information of other control plane devices.

In a possible implementation, the method further includes: the first user plane device sending a second message to the first control plane device, the second message being used to indicate a link failure between the first user plane device and the network, so that The first control plane device sends the user data of the first user plane device to other user plane devices that belong to the same warm standby group as the first user plane device.

In a possible implementation, the first user plane device is also connected to a third control plane device. The method further includes: the first user plane device sends a third message to the third control plane device, and the third message is used to indicate the third control plane device. A management device for user plane equipment The device is switched from the first control plane device to the third control plane device. In this implementation, the backup between multiple CPs is expanded, that is, the first user plane device is connected to multiple control plane devices. These multiple control plane devices are configured in multi-active mode: when the second control plane device cannot manage When the first user plane device is used, it can be switched to the first control plane device management; when the first control plane device cannot manage the first user plane device, it can be switched to the third control plane device management. Through the above all-active configuration, even when the two control plane devices cannot manage the user plane devices, the user plane devices can still be managed, thereby ensuring that users are online and accessed.

In a third aspect, this application provides a user plane management method. The method is applied to a database server. The database server is connected to a first control plane device and a second control plane device. The first control plane device is connected to the first user plane device and the second control plane device. Two user plane devices are connected, the second control plane device is connected to the first user plane device and the second user plane device, and the first user plane device and the second user plane device belong to the same warm backup group. The method includes: the database server receives the first user plane device and the second user plane device. The user data of the first user plane device is sent by a control plane device. The first control plane device is used to manage the first user plane device; the database server receives the user data of the second user plane device sent by the second control plane device. The control plane device is used to manage the second user plane device.

In a possible implementation, the database server sends the user data of the first user plane device to the second control plane device, so that the second control plane device manages the first user plane device based on the user data of the first user plane device.

In the fourth aspect, the present application provides a user plane management method. The method is applied to an address server. The address server is connected to a first control plane device and a second control plane device. The first control plane device is connected to a first user plane device and a second control plane device. Two user plane devices are connected, the second control plane device is connected to the first user plane device and the second user plane device, the first user plane device and the second user plane device belong to the same warm standby group, the method includes: responding to the first user plane device In response to the first address request sent by the control plane device, the address server allocates the first address to the first user plane device, and the first control plane device is used to manage the first user plane device; in response to the second address request sent by the second control plane device , the address server allocates a second address to the second user plane device, and the second control plane device is used to manage the second user plane device.

In the fifth aspect, this application provides a user plane management method, which is applied to a broadband access gateway system. The broadband access gateway system includes a first control plane device, a second control plane device, and multiple user plane devices. The control plane device is used to manage a first user plane device among multiple user plane devices. The method includes: the first user plane device sends a first message to the first control plane device, and the first message is used to instruct the first user plane device. The management device is switched to the first control plane device; the first control plane device receives the first message; in response to the first message, the first control plane device manages the first user plane device.

In a possible implementation, the method further includes: the first user plane device sending a third message to the third control plane device, the first user plane device is also connected to the third control plane device, and the third message is used to indicate the third control plane device. The management device of a user plane device is switched from the first control plane device to the third control plane device; the third control plane device receives the third message; in response to the third message, the third control plane device manages the first user plane device .

In the sixth aspect, the present application provides a user plane management method. The method is applied to a broadband access gateway system. The broadband access gateway system includes a first control plane device, a second control plane device, a database server and multiple user plane devices. , the method includes: the first control plane device sends the user data of the first user plane device among the plurality of user plane devices to the database server, and the first control plane device is used to manage the first user plane device and the second user plane device; The database server receives the user data of the first user plane device sent by the first control plane device; the second control plane device sends multiple user data to the database server. The user data of the second user plane device in the plane device, the second control plane device is used to manage the second user plane device, the first user plane device and the second user plane device belong to the same warm backup group; the database server receives the second control The user data of the second user plane device sent by the plane device.

In a possible implementation, the method further includes: the database server sends the user data of the first user plane device to the second control plane device; the second control plane device receives the user data of the first user plane device; and the second control plane device The plane device manages the first user plane device based on user data of the first user plane device.

In a possible implementation, the broadband access gateway system further includes a third control plane device, and the method further includes: the database server sends the user data of the first user plane device to the third control plane device; the third control plane device Receive user data of the first user plane device; and the third control plane device manages the first user plane device based on the user data of the first user plane device.

A seventh aspect provides a control plane device. The control plane device includes a processor and a memory. The memory is used to store software programs and modules. The processor implements the method in the above first aspect or any possible implementation of the first aspect by running or executing software programs and/or modules stored in the memory.

Optionally, there are one or more processors and one or more memories.

Alternatively, the memory may be integrated with the processor, or the memory may be provided separately from the processor.

In the specific implementation process, the memory can be a non-transitory memory, such as a read-only memory (ROM), which can be integrated on the same chip as the processor, or can be set in different On the chip, this application does not limit the type of memory and the arrangement of the memory and the processor.

An eighth aspect provides a user plane device. The user plane device includes a processor and a memory. The memory is used to store software programs and modules. The processor implements the method in the above second aspect or any possible implementation of the second aspect by running or executing software programs and/or modules stored in the memory.

A ninth aspect provides a database server. The database server includes a processor and memory. The memory is used to store software programs and modules. The processor implements the method in the above third aspect or any possible implementation of the third aspect by running or executing software programs and/or modules stored in the memory.

In a tenth aspect, an address server is provided. The address server includes a processor and a memory. The memory is used to store software programs and modules. The processor implements the method in the fourth aspect by running or executing software programs and/or modules stored in the memory.

In an eleventh aspect, a communication system is provided, the communication system including a control plane device, a user plane device, a database server and an address server;

The control plane device is configured to perform the method in the above first aspect or any possible implementation of the first aspect, and the user plane device is configured to perform the above second aspect or any possible implementation of the second aspect. In the method in the embodiment, the database server is configured to execute the third aspect or the method in any possible implementation of the third aspect, and the address server is configured to execute the method in the fourth aspect.

In a possible implementation, the communication system includes at least two control plane devices and at least two user devices. User plane equipment; before a communication failure occurs, each of the at least two control plane devices is communicatively connected to at least one user plane device.

In a twelfth aspect, a computer program product is provided. The computer program product includes computer program code. When the computer program code is run by a computer, it causes the computer to execute the method in the above-mentioned first aspect or any possible implementation of the first aspect, or to execute the above-mentioned third aspect. The method in the second aspect or any possible implementation of the second aspect, or the method in the above third aspect or any possible implementation of the third aspect, or the method in the above fourth aspect.

In a thirteenth aspect, the present application provides a computer-readable storage medium, the computer-readable storage medium being used to store program code executed by a processor, where the program code includes a method for implementing the above first aspect or the first aspect. The method in any possible implementation of the above aspect, or the method in any possible implementation of the above second aspect or the second aspect, or the method in any possible implementation of the above third aspect or the third aspect method in the implementation, or implement the method in the fourth aspect.

In a fourteenth aspect, a chip is provided, including a processor. The processor is configured to call and run instructions stored in the memory, so that a communication device equipped with the chip executes the above first aspect or aspects. The method in any possible implementation manner, or perform the above second aspect or the method in any possible implementation manner of the second aspect, or perform the above third aspect or any possible method of the third aspect The method in the embodiment, or perform the method in the fourth aspect above.

In a fifteenth aspect, another chip is provided. The other chip includes an input interface, an output interface, a processor and a memory. The input interface, the output interface, the processor and the memory are connected through internal connection paths. The processor is configured to execute the code in the memory. When the code is executed, the processor is configured to execute the method in the above-mentioned first aspect or any possible implementation of the first aspect, or execute the above-mentioned The method in the second aspect or any possible implementation of the second aspect, or perform the method in the above third aspect or any possible implementation of the third aspect, or perform the method in the above fourth aspect .

Description of drawings

Figure 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application;

Figure 2 is a schematic structural diagram of a communication system provided by an embodiment of the present application;

Figure 3 is a schematic structural diagram of a communication system provided by an embodiment of the present application;

Figure 4 is a schematic structural diagram of a communication system provided by an embodiment of the present application;

Figure 5 is a schematic structural diagram of a communication system provided by an embodiment of the present application;

Figure 6 is a schematic structural diagram of a communication system provided by an embodiment of the present application;

Figure 7 is a schematic structural diagram of a communication system provided by an embodiment of the present application;

Figure 8 is a schematic structural diagram of a communication system provided by an embodiment of the present application;

Figure 9 is a flow chart of a user plane management method provided by an embodiment of the present application;

Figure 10 is a flow chart of a user plane management method provided by an embodiment of the present application;

Figure 11 is a flow chart of a user plane management method provided by an embodiment of the present application;

Figure 12 is a flow chart of a user plane management method provided by an embodiment of the present application;

Figure 13 is a flow chart of a user plane management method provided by an embodiment of the present application;

Figure 14 is a flow chart of a user plane management method provided by an embodiment of the present application;

Figure 15 is a flow chart of a user plane management method provided by an embodiment of the present application;

Figure 16 is a flow chart of a user plane management method provided by an embodiment of the present application;

Figure 17 is a flow chart of a user plane management method provided by an embodiment of the present application;

Figure 18 is a block diagram of a user plane management device provided by an embodiment of the present application;

Figure 19 is a block diagram of a user plane management device provided by an embodiment of the present application;

Figure 20 is a block diagram of a user plane management device provided by an embodiment of the present application;

Figure 21 is a block diagram of a user plane management device provided by an embodiment of the present application;

Figure 22 is a schematic structural diagram of a user plane management device provided by an embodiment of the present application.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the accompanying drawings.

Figure 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application. Referring to Figure 1, the communication system includes: at least two control plane devices 100 and at least two user plane devices 200. Each user plane device 200 is connected to at least two control plane devices 100 , and each control plane device 100 is connected to multiple user plane devices 200 .

In this embodiment of the present application, the communication system can be either a virtual gateway or a physical gateway. The control plane device 100 and the user plane device 200 can be either a virtual network function (VNF) running on a server (such as an X86 server), or a traditional hardware network element, that is, a physical network element (physical network). function, VNF).

For example, the control plane device 100 may be a virtual control plane or a physical control plane. The user plane device 200 may be a virtual user plane or a physical user plane.

Illustratively, the communication system is a virtual broadband network gateway (vBNG). The control plane device is the virtual broadband network gateway control plane (vBNG-CP), referred to as CP, such as CP1~CP2 in Figure 1; the user plane device is the virtual broadband network gateway user plane (virtual broadband network gateway user plane, vBNG-UP), referred to as UP, such as UP1~UP4 in Figure 1.

In the embodiment of the present application, the two control plane devices 100 may be directly connected to each other. Of course, the two control plane devices 100 may not be directly connected to each other, as shown in CP1 and CP2 in Figure 1. This application does not Make restrictions.

In related technologies, a communication system usually includes two control plane devices and multiple user plane devices. The two control plane devices 100 adopt an active and backup configuration, such as 1:1 hot backup or 1+1 hot backup. Multiple user plane devices 200 can be divided into several disaster recovery groups. For a disaster recovery group, one control plane device is the main control plane device and the other is the backup control plane device. The two control plane devices 100 sense each other's status by transmitting heartbeat signals. When the heartbeat of the main control plane device disappears, the backup control plane device is promoted from the backup control plane device to the main control plane device, and notifies each user plane device in the group after being promoted to the main control plane device.

In the solution of the related technology, when the control channel connection between a user plane device in the warm backup group and the current main control plane device fails or packets continue to be lost, if you want to switch over, you need to switch over the entire disaster recovery group, so The scope of influence is larger. If you want to implement granular switching of a single user plane device, you need to create a disaster recovery group for each user plane device. This results in a huge number of disaster recovery groups and complicated configuration. Moreover, in user plane device warm backup or hot backup scenarios, user plane devices with backup relationships must also be placed in a disaster recovery group.

In order to solve the above problems in related technologies, in the embodiment of the present application, two or more control plane devices 100 no longer perform active and backup configurations, but adopt dual-active or multi-active deployment, that is, two or more control plane devices 100 The plane device 100 can manage different user plane devices 200 at the same time, instead of having one of the active and backup control plane devices process the user plane device.

In this embodiment of the present application, the user plane device 200 can actively select the control plane device 100, and the control plane device 100 selected by the user plane device 200 manages the user plane device 200. Alternatively, the user plane device 200 can actively switch the control plane device 100 and change the control plane device 100 that manages the user plane device 200, and the switching action can be performed multiple times. Through the above solution, granular switching of a single user plane device can be achieved, and there is no need to create a disaster recovery group for each user plane device. The disaster recovery group configuration scheme can be configured as needed and has nothing to do with the switching process. This switching solution can avoid switching of the entire disaster recovery group and has less impact on user plane equipment. Moreover, this solution no longer uses the active-standby decision-making, so it does not need to use heartbeat signals, saving the cost of control plane equipment.

In the embodiment of the present application, there may be triggering conditions for user plane device 200 to switch to control plane device 100, for example, communication failure between user plane device and control plane device, control plane device priority change, control plane device load change, control plane device load change, etc. Device restart, etc.

For example, as shown in Figure 2, the link between UP1 and CP1 that manages UP1 fails (failure marked 1 in Figure 2). At this time, UP1 can switch the control plane device. As shown in Figure 3, UP1 switches from CP1 switches to CP2, and CP2 manages UP1. In the above-mentioned figures 2 and 3, the arrowed connection between the CP and the UP indicates that the CP manages the UP.

For example, as shown in Figure 4, CP1 fails (3 failures are marked in Figure 4). At this time, both UP1 and UP2 originally managed by CP1 need to switch control plane devices. As shown in Figure 5, both UP1 and UP2 It can be switched from CP1 to CP2, with CP2 managing UP1 and UP2; or, as shown in Figure 6, UP1 is switched from CP1 to CP2, with CP2 managing UP1, and UP2 is switched from CP1 to CPn, with CPn managing UP2.

For example, as shown in Figure 7, CP2 also fails (4 failures are marked in Figure 7). At this time, CP2 originally needs to switch control plane devices to manage both UP1 and UP3. As shown in Figure 8, both UP1 and UP3 You can switch from CP2 to CPn, and CPn manages UP1 and UP3.

In this embodiment of the present application, the control plane device 100 can record the management attributes (or ownership relationships) of each user plane device 200. The management attributes can include local management and remote management, where local management represents the user plane device 200. It is managed by the control plane device 200, and remote management means that the user plane device is managed by other control plane devices 200.

For example, as shown in Figure 3, after UP1 switches to CP2, the management attributes of UP1 in CP2 are updated from remote management (remote) to local management (local), while the management attributes of UP1 in CP1 are updated from local management (local). Updated to remote management (remote).

In this embodiment of the present application, as shown in Figures 2 to 8, each user plane device 100 is also connected to the network 300. When the user plane device 100 fails or the communication between the user plane device 100 and the network 300 fails, the control plane device 100 sends the user data of the user plane device 200 to other user plane devices 100 to realize backup of the user plane device.

The network 300 may be a Layer 2 network, such as a Layer 2 transparent transmission network of a switch.

For example, as shown in Figure 3, UP1~UP4 is a warm standby group, and the link between UP1 and network 300 fails (2 faults are marked in Figure 3). At this time, CP2 distributes the user data of UP1 to UP2~ The services of UP4 and UP1 are load-balanced by UP2~UP4 to realize warm standby switching of UP.

In the embodiment of the present application, as shown in Figures 2 to 8, the communication system may also include a database server 400. The library server 400 is configured with a database, and the database is used to store user data of each user plane device 200 . Each control plane device 100 is connected to the database server 400 , and each control plane device 100 shares the database in the database server 400 . The database server in the embodiment of the present application is independently set up outside the control plane device. Compared with the related technology where the database is set up inside the control plane device (failure of the control plane device has a probability of causing damage to the local database), it can This ensures that when the control plane device fails, user data in the database server device is not affected.

For example, as shown in Figure 2, CP1 synchronizes the user data of UP1 and UP2 to the database server 400, and CP2 synchronizes the user data of UP3 and UP4 to the database server 400.

When UP1 switches from CP1 to CP2, CP2 can obtain the user data of UP1 from the database server 400, thereby realizing CP2's management of UP1.

In this embodiment of the present application, as shown in Figures 2 to 8, the communication system may also include an address server 500. Illustratively, the address server 500 is a dynamic address pool (dynamic address pool, DAP) server.

Each control plane device 100 is connected to the address server 500, and each control plane device 100 shares the address server 500.

For example, as shown in Figure 2, the address server 500 allocates an address pool to CP1~CP2 to avoid address conflict between CP1 and CP2, while CP1 allocates addresses to UP1 and UP2, and CP2 allocates addresses to UP3 and UP4.

In the embodiment of the present application, before a communication failure occurs, each control plane device 100 of the at least two control plane devices 100 is communicatively connected to at least one user plane device 200, so that the load is more balanced and the control plane device 200 is avoided. When the device 100 fails, too many user plane devices 200 need to be switched.

In this embodiment of the present application, the database server 400 and the address server 500 can be set up separately or integrated together.

Taking the database server 400 and the address server 500 being set up separately as an example, the database server 400 can be one computer, one server, or a combination of two or more servers. The address server 500 can be a computer, a server, or a combination of two or more servers. This application does not impose too many restrictions on the hardware implementation of the database server 400 and the address server 500.

Figure 9 is a flow chart of a user plane management method provided by an embodiment of the present application. The method may be executed by a control plane device in the communication system, such as a first control plane device. The first control plane device is connected to a plurality of user plane devices, and the plurality of user plane devices are also connected to a second control plane device. As shown in Figure 9, the method includes the following steps.

S11: The first control plane device receives the first message.

Wherein, the first user plane device is any user plane device among the plurality of user plane devices.

When the first control plane device receives the first message, the first user plane device is managed by the second control plane device. The first message is used to instruct the management device of the first user plane device to switch to the first control plane device.

In some possible implementations, the first message is sent by the first user plane device. That is, the first control plane device receives the first message sent by the first user plane device.

For example, as shown in Figure 2, the link between UP1 and CP1 that manages UP1 fails (failure marked 1 in Figure 2), UP1 sends a first message to CP2, and CP2 receives the first message.

Illustratively, UP1 sends the first message to CP2 through a control plane user plane separated protocol (CUSP).

In other possible implementations, the first message is sent by the second control plane device. That is, the first control The plane device receives the first message sent by the second control plane device.

For example, as shown in Figure 2, the link between UP1 and CP1 that manages UP1 fails (failure marked 1 in Figure 2), CP1 sends a first message to CP2, and CP2 receives the first message.

In the above process, the link failure between the first user plane device and the second control plane device that manages the first user plane device is a condition that triggers the first message. In addition, the conditions that trigger the first message It also includes: second control plane device failure, second control plane device priority change, second control plane device load change, second control plane device restart, etc.

Among them, the link failure between the first user plane device and the second control plane device and the second control plane device failure can be collectively referred to as the communication failure between the first user plane device and the second control plane device. However, it should be noted that, When the second control plane device fails, the first message can no longer be sent by the second control plane device and is usually sent by the first user plane device.

The load change of the second control plane device means that the load of the second control plane device changes and the changed load is higher than the threshold. At this time, the first user plane device also needs to reselect the control plane device.

S12: In response to the first message, the first control plane device manages the first user plane device.

In this embodiment of the present application, the management of the first user plane device by the first control plane device includes at least one of the following: device management, user management, address management, authentication management, accounting management, business processing, etc. Among them, service processing refers to processing user messages of the first user plane device and delivering forwarding entries to the first user plane device.

In this embodiment of the present application, the first user plane device and the second user plane device belong to the same warm backup group. After the first control plane device receives the first message, the first user plane device is managed by the first control plane device. , the second user plane device is managed by the second control plane device.

For example, as shown in Figure 2, UP1 and UP2 belong to the same warm standby group. After CP2 receives the first message sent by UP1, UP1 is managed by CP2 and UP2 is managed by CP1.

In this embodiment of the present application, the control plane device receives the first message instructing the management device of the first user plane device to switch to the first control plane device, and then manages the first user plane device. Before that, the first user plane device The device is managed by the second control plane device, so the above process realizes switching of the control plane device that manages the first user plane device, that is, it realizes switching of the control plane device of a single user plane device. This can avoid the problem in related technologies that the control plane devices of multiple user plane devices need to be switched simultaneously due to the active/standby switching method, ensuring the business continuity of other user plane devices and ensuring the working performance of the communication system.

Figure 10 is a flow chart of a user plane management method provided by an embodiment of the present application. The method may be executed by a user plane device in the communication system, for example, a first user plane device therein. The first user plane device is connected to the first control plane device and the second control plane device. The first control plane device and the second control plane device are connected to each other. Each control plane device is connected to multiple user plane devices, and the multiple user plane devices include a first user plane device. As shown in Figure 10, the method includes the following steps.

S21: The first user plane device sends the first message to the first control plane device.

The first message is used to instruct the management device of the first user plane device to switch to the first control plane device.

When the first user plane device sends the first message, the first user plane device is managed by the second control plane device.

In some possible implementations, the first user plane device sends the first message to the first control plane device under any of the following conditions:

There is a communication failure between the first user plane device and the second control plane device, the priority of the second control plane device changes, the load of the second control plane device changes, and the second control plane device restarts.

The communication failure between the first user plane device and the second control plane device includes: a link failure between the first user plane device and the second control plane device, and a failure of the second control plane device.

In this embodiment of the present application, the first user plane device and the second user plane device belong to the same warm backup group. After the first user plane device sends the first message, the first user plane device is managed by the first control plane device. The second user plane device is managed by the second control plane device.

For example, as shown in Figure 2, UP1 and UP2 belong to the same warm standby group. After UP1 sends the first message to CP2, UP1 is managed by CP2 and UP2 is managed by CP1.

In this embodiment of the present application, the user plane device sends a first message instructing the management device of the first user plane device to switch to the first control plane device. After receiving it, the first control plane device manages the first user plane device, and Before this, the first user plane device was managed by the second control plane device, so the above process realizes the switching of the control plane device that manages the first user plane device, that is, the control plane device of a single user plane device is realized. switch. This can avoid the problem in related technologies that the control plane devices of multiple user plane devices need to be switched simultaneously due to the active/standby switching method, ensuring the business continuity of other user plane devices and ensuring the working performance of the communication system.

Figure 11 is a flow chart of a user plane management method provided by an embodiment of the present application. The method can be executed by control plane equipment and user plane equipment in the communication system. As shown in Figure 11, the method includes the following steps.

S31: The first user plane device obtains information about other control plane devices except the second control plane device and used to connect to the first user plane device. The other control plane devices include the first control plane device.

In step S31, the first user plane device is managed by the second control plane device.

The information of other control plane devices includes at least one of load information, number information, and priority information of other control plane devices.

Exemplarily, the first user plane device obtains information about other control plane devices connected to the first user plane device from each other control plane device.

For example, the control plane device can determine the priority based on its own load information. For example, the higher the load of the control plane device, the lower the priority of the control plane device. The lower the load of the control plane device, the lower the priority of the control plane device. high.

S32: The first user plane device determines the first control plane device among other control plane devices based on the information of other control plane devices.

In a possible implementation, the first user plane device determines the control plane device with the smallest or largest number among other control plane devices as the first control plane device based on the number information of other control plane devices.

In another possible implementation, the first user plane device determines the control plane device with the smallest load among other control plane devices according to the load information of other control plane devices as the first control plane device.

In another possible implementation manner, the first user plane device determines the control plane device with the highest priority among other control plane devices according to the priority information of other control plane devices as the first control plane device.

For example, as shown in Figure 4, after UP1 fails to communicate with CP1, UP1 obtains the information of CP2~CPn. For example, based on the numbers of CP2~CPn, it selects CP2 with the smallest number as the first control plane device.

S33: The first user plane device sends the first message to the first control plane device. The first control plane device receives the first message sent by the first user plane device.

The first message is used to instruct the management device of the first user plane device to switch to the first control plane device, and the first user plane device is any user plane device among multiple user plane devices.

It should be noted that when the second control plane device is not faulty, steps S31 to S33 may also be executed by the second control plane device.

S34: In response to the first message, the first control plane device manages the first user plane device.

The first control plane device manages the first user plane device, including:

The first control plane device obtains user data of the first user plane device;

The first control plane device manages the first user plane device based on the user data of the first user plane device.

Optionally, when acquiring user data of the first user plane device, the first control plane device may also acquire status information of the first user plane device, and the status information is also used to manage the first control plane device.

Among them, the user data of the user plane device includes the user's entry information, such as the user's Internet protocol (internet protocol, IP) address, media access control (media access control, MAC) address, quality of service (quality of service, QoS) /Access control lists (access control lists, ACL) and other information.

The status information of the user plane device includes at least one of the following: online status, board status, interface status, board type, and interface type.

In some possible implementations, the first control plane device obtains user data of the first user plane device, including:

The first control plane device obtains user data of the first user plane device from a database server. The database server includes user data of user plane devices managed locally by the first control plane device and the second control plane device.

In other possible implementations, the first control plane device obtains user data of the first user plane device, including:

The first control plane device obtains user data of the first user plane device from the second control plane device.

When steps S31 to S33 are executed by the first user plane device, it means that the link between the first user plane device and the first control plane device is not faulty. At this time, the first control plane device can respond to the first user plane device. Device management.

When steps S31 to S33 are executed by the second control plane device, the first control plane device may first determine whether the link between the first user plane device and the first control plane device is faulty. If not, the first control plane device The plane device manages the first user plane device. If the link between the first user plane device and the first control plane device fails, the first control plane device may select other control plane devices in the same manner as steps S31 to S33 and send the first message, thereby allowing other control plane devices to The plane device manages the first user plane device.

Figure 12 is a flow chart of a user plane management method provided by an embodiment of the present application. The method can be executed by control plane equipment and user plane equipment in the communication system. As shown in Figure 12, the method includes the following steps.

S41: The first user plane device sends the first message to the first control plane device. The first control plane device receives the first message sent by the first user plane device.

In step S41, the first user plane device is managed by the second control plane device.

S42: In response to the first message, the first control plane device manages the first user plane device.

For the detailed process of step S42, reference can be made to step S34, which will not be described again here.

S43: The first control plane device updates the management attribute of the first user plane device from remote management to local management.

In this embodiment of the present application, a management attribute table is stored in the control plane device, and the control plane device is stored in the management attribute table. Management properties of each user plane device connected to the device.

Taking the situation shown in Figure 2 as an example, the management attribute table in CP2 is as shown in Table 1 below:

Table 1

Among them, remote means remote management, and local means local management.

When UP1 switches from CP1 to CP2, which is the situation shown in Figure 3, the management attribute table in CP2 is shown in Table 2 below:

Table 2

S44: The first control plane device sends a notification message to the second control plane device. The second control plane device receives the notification message sent by the first control plane device.

S45: The second control plane device updates the management attribute of the first user plane device from local management to remote management based on the notification message, and stops managing the first user plane device.

Taking the situation shown in Figure 2 as an example, the management attribute table in CP1 is as shown in Table 3 below:

table 3

When UP1 switches from CP1 to CP2, which is the situation shown in Figure 3, the management attribute table in CP1 is shown in Table 4 below:

Table 4

Figure 13 is a flow chart of a user plane management method provided by an embodiment of the present application. This method can be used in communication systems Control plane devices and user plane devices execute. As shown in Figure 13, the method includes the following steps.

S51: The first user plane device sends the first message to the first control plane device. The first control plane device receives the first message sent by the first user plane device.

In step S51, the first user plane device is managed by the second control plane device.

S52: In response to the first message, the first control plane device manages the first user plane device.

For the detailed process of step S52, reference can be made to step S34, which will not be described again here.

S53: The first user plane device sends a second message to the first control plane device. The second message is used to indicate a link failure between the first user plane device and the network. The first control plane device receives the second message sent by the first user plane device.

S54: The first control plane device sends the user data of the first user plane device to other user plane devices that belong to the same warm standby group as the first user plane device.

Of course, receiving the second message by the first control plane device is only an implementation manner of triggering step S54. In another implementation manner, step S53 may also be as follows: the first control plane device detects a fault of the first user plane device. , in this case, the first user plane device cannot send the second message.

Optionally, when there is a user plane device managed by the second control plane device among other user plane devices that belong to the same warm backup group as the first user plane device, the method further includes: the first control plane device converts the first user plane device to the first user plane device. Information about the link failure between the device and the network is notified to the second control plane device, so that the second control plane device obtains the user data of the first user plane device and delivers it to the user data belonging to the same warm backup group as the first user plane device. user plane equipment.

Optionally, the method further includes: the first control plane device synchronizes the user data of the first user plane device to a database server, and then the database server synchronizes it to the second control plane device, or the first control plane device directly synchronizes the user data of the first user plane device to the database server. User data of one user plane device is synchronized to the second control plane device.

As shown in Figure 3, UP1~UP4 is a warm standby group. The link between UP1 and network 300 fails (2 faults are marked in Figure 3). At this time, the user data of UP1 needs to be distributed to UP2~UP4. It is processed by UP2~UP4 to realize warm standby switching of UP.

CP1 sends the user data of UP1 to UP3 and UP4, and synchronizes the user data of UP1 to the database server at the same time. CP2 synchronizes the user data of UP1 from the database server, and then sends it to UP2, thereby realizing the services of UP2~UP4 to UP1. for processing.

For example, CP1 sends the user data of UP1 to UP3 and UP4 through CUSP, and CP2 sends the user data of UP1 to UP2 through CUSP.

Figure 14 is a flow chart of a user plane management method provided by an embodiment of the present application. The method can be executed by a database server in the communication system. The database server is connected to the first control plane device and the second control plane device. The first control plane device is connected to the first user plane device and the second user plane device. The second control plane device is connected to the first control plane device and the second user plane device. The plane device is connected to the first user plane device and the second user plane device, and the first user plane device and the second user plane device belong to the same warm backup group. As shown in Figure 14, the method includes the following steps.

S61: The database server receives the user data of the first user plane device sent by the first control plane device, and the first control plane device is used to manage the first user plane device.

S62: The database server receives the user data of the second user plane device sent by the second control plane device. The second control plane device The device is used to manage the second user plane device.

In this implementation, the user data of two user plane devices belonging to the same warm standby group is sent to the database server through two different control plane devices.

Figure 15 is a flow chart of a user plane management method provided by an embodiment of the present application. The method can be executed by a database server in the communication system. The database server is connected to the first control plane device and the second control plane device. The first control plane device is connected to the first user plane device and the second user plane device. The second control plane device is connected to the first control plane device and the second user plane device. The plane device is connected to the first user plane device and the second user plane device, and the first user plane device and the second user plane device belong to the same warm backup group. As shown in Figure 15, the method includes the following steps.

S71: The database server receives the user data of the first user plane device sent by the first control plane device, and the first control plane device is used to manage the first user plane device and the second user plane device.

In a possible implementation, the first control plane device may send the user data of the first user plane device to the database server before the first user plane device starts switching to the second control plane device.

In another possible implementation, the first control plane device may send the user data of the first user plane device to the database server during the process of switching the first user plane device to the second control plane device. For example, when the first control plane device receives a notification message from the second control plane device, the user data of the first user plane device is sent to the database server, and then management of the first user plane device is stopped.

S72: The database server receives the user data acquisition request of the first user plane device sent by the second control plane device.

S73: In response to the user data acquisition request of the first user plane device, the database server sends the user data of the first user plane device to the second control plane device, so that the second control plane device manages the user data based on the first user plane device. First user plane equipment.

At this time, the second control plane device manages the first user plane device, and the first control plane device manages the second user plane device.

Figure 16 is a flow chart of a user plane management method provided by an embodiment of the present application. The method can be executed by the first control plane device, the second control plane device, the third control plane device and the database server in the communication system. The database server and the first control plane device, the second control plane device and the third control plane device connection, the first control plane device is connected to the first user plane device and the second user plane device, the second control plane device is connected to the first user plane device and the second user plane device, and the third control plane device is connected to the first user plane device. The device is connected to the second user plane device, and the first user plane device and the second user plane device belong to the same warm standby group. As shown in Figure 16, the method includes the following steps.

S81: The second control plane device sends the user data of the first user plane device to the database server. The database server receives the user data of the first user plane device sent by the second control plane device.

When performing step S81, the second control plane device simultaneously manages the first user plane device and the second user plane device.

Optionally, the second control plane device may also send the user data of the second user plane device to the database server. The database server receives the user data of the second user plane device sent by the second control plane device. The user data of the second user plane device may be sent simultaneously with the user data of the first user plane device, or may be sent separately.

S82: The first control plane device receives the first message, and the first message is used to instruct the management device of the first user plane device to switch to the first control plane device.

The first message may be sent by the first user plane device to the first control plane device, or may be sent by the second control plane device to the first control plane device.

S83: In response to the first message, the first control plane device sends a first user plane device user data acquisition request to the database server; the database server receives the first user plane device user data acquisition request.

S84: In response to the user data acquisition request of the first user plane device, the database server sends the user data of the first user plane device to the first control plane device; the first control plane device receives the user data of the first user plane device.

S85: The first control plane device manages the first user plane device based on the user data of the first user plane device.

After the above steps, the first control plane device manages the first user plane device, and the second control plane device manages the second user plane device.

Optionally, the first control plane device sends the user data of the first user plane device to the database server; the database server receives the user data of the first user plane device sent by the first control plane device. The second control plane device sends the user data of the second user plane device to the database server; the database server receives the user data of the second user plane device sent by the second control plane device.

S86: The third control plane device receives a third message. The third message is used to instruct the management device of the first user plane device to switch from the first control plane device to the third control plane device.

The third message may be sent by the first user plane device to the third control plane device, or may be sent by the first control plane device to the third control plane device.

S87: In response to the third message, the third control plane device sends a first user plane device user data acquisition request to the database server; the database server receives the first user plane device user data acquisition request.

S88: The database server sends the user data of the first user plane device to the third control plane device; the third control plane device receives the user data of the first user plane device.

S89: The third control plane device manages the first user plane device based on the user data of the first user plane device.

After the above steps, the third control plane device manages the first user plane device, and the second control plane device manages the second user plane device.

Optionally, the third control plane device sends the user data of the first user plane device to the database server; the database server receives the user data of the first user plane device sent by the third control plane device. The second control plane device sends the user data of the second user plane device to the database server; the database server receives the user data of the second user plane device sent by the second control plane device.

Figure 17 is a flow chart of a user plane management method provided by an embodiment of the present application. The method can be executed by an address server in the communication system. The address server is connected to the first control plane device and the second control plane device. The first control plane device is connected to the first user plane device and the second user plane device. The second control plane device is connected to the first control plane device and the second user plane device. The plane device is connected to the first user plane device and the second user plane device, and the first user plane device and the second user plane device belong to the same warm backup group. As shown in Figure 17, the method includes the following steps.

S91: In response to the first address request sent by the first control plane device, the address server allocates a first address to the first user plane device, and the first control plane device is used to manage the first user plane device.

S92: In response to the second address request sent by the second control plane device, the address server allocates a second address to the second user plane device, and the second control plane device is used to manage the second user plane device.

That is, the address server first receives the address request, then allocates an address based on the address request, and then sends it to the control plane device. The control plane device receives the address assigned by the address server to implement address management of the user plane device.

In the embodiment of this application, the address server can provide two user plane devices in the same warm backup group with Control plane devices are assigned addresses.

Figure 18 is a block diagram of a user plane management device provided by an embodiment of the present application. The user plane management device can be implemented as all or part of the first control plane device through software, hardware, or a combination of the two. The first control plane device is connected to multiple user plane devices, and the multiple user plane devices are also connected to the second control plane device. Surface device connection. The user plane management device may include: a receiving unit 801 and a processing unit 802.

The receiving unit 801 is used to receive a first message, the first user plane device is any user plane device among multiple user plane devices, and the first message is used to instruct the management device of the first user plane device to switch to the first control device. surface equipment;

The processing unit 802 is configured to manage the first user plane device in response to the first message.

Optionally, the receiving unit 801 is configured to receive the first message sent by the first user plane device.

Optionally, the receiving unit 801 is configured to receive the first message sent by the second control plane device.

Optionally, before the first control plane device receives the first message, the first user plane device is managed by the second control plane device, and the first message is received under any of the following conditions:

Optionally, the first user plane device and the second user plane device belong to the same warm backup group. After the first control plane device receives the first message, the first user plane device is managed by the first control plane device, and the second user plane device The user plane equipment is managed by the second control plane equipment.

Optionally, the first control plane device stores management attributes of multiple user plane devices. The management attributes are remote management or local management. The first control plane device is used to manage user plane devices whose management attributes are local management. ;

The processing unit 802 is also configured to, after receiving the first message, the first control plane device update the management attribute of the first user plane device from remote management to local management.

Optionally, the user plane management device may include: sending unit 803,

The sending unit 803 is configured to send a notification message to the second control plane device after receiving the first message. The notification message is used to notify the second control plane device to update the management attributes of the first user plane device from local management to remote management. So that the second control plane device stops managing the first user plane device.

Optionally, the processing unit 802 is configured to obtain user data of the first user plane device; and manage the first user plane device based on the user data of the first user plane device.

Optionally, the processing unit 802 is configured to obtain user data of the first user plane device from a database server. The database server includes users of user plane devices managed locally by the first control plane device and the second control plane device. data.

Optionally, the processing unit 802 is configured to obtain user data of the first user plane device from the second control plane device.

Optionally, the receiving unit 801 is also configured to receive a second message sent by the first user plane device, where the second message is used to indicate a link failure between the first user plane device and the network;

The sending unit 803 is also configured to send the user data of the first user plane device to other user plane devices belonging to the same warm standby group as the first user plane device.

Optionally, the processing unit 802 is also configured to detect a first user plane device failure;

Figure 19 is a block diagram of a user plane management device provided by an embodiment of the present application. The user plane management device can be implemented as all or part of the first user plane device through software, hardware, or a combination of the two. The first user plane device is connected to the first control plane device and the second control plane device. The first control plane device Both the device and the second control plane device are connected to multiple user plane devices, and the multiple user plane devices include the first user plane device. The user plane management device may include: a sending unit 901.

The sending unit 901 is configured to send a first message to the first control plane device, where the first message is used to instruct the management device of the first user plane device to switch to the first control plane device.

Optionally, before the first control plane device receives the first message, the first user plane device is managed by the second control plane device, and the sending unit 901 is configured to send a message to the first control plane device under any of the following conditions: The device sends the first message:

Optionally, the first user plane device and the second user plane device belong to the same warm standby group. After the first user plane device sends the first message,

The first user plane device is managed by the first control plane device, and the second user plane device is managed by the second control plane device.

Optionally, the user plane management device may include: a processing unit 902,

The processing unit 902 is configured to obtain, in addition to the second control plane device, information about other control plane devices connected to the first user plane device before sending the first message to the first control plane device. The other control plane devices include The first control plane device; determines the first control plane device among the other control plane devices according to the information of the other control plane devices.

Optionally, the information of other control plane devices includes at least one of load information, number information, and priority information of other control plane devices.

Optionally, the sending unit 901 is also configured to send a second message to the first control plane device, where the second message is used to indicate a link failure between the first user plane device and the network, so that the first control plane device sends the first The user data of the user plane device is sent to other user plane devices belonging to the same warm standby group as the first user plane device.

Optionally, the sending unit 901 is also configured to send a third message to the third control plane device, where the third message is used to instruct the management device of the first user plane device to switch from the first control plane device to the third control plane device.

Figure 20 is a block diagram of a user plane management device provided by an embodiment of the present application. The user plane management device can be implemented as all or part of the database server through software, hardware, or a combination of the two. The database server is connected to the first control plane device and the second control plane device. The first control plane device is connected to the first user plane. The device is connected to the second user plane device, the second control plane device is connected to the first user plane device and the second user plane device, and the first user plane device and the second user plane device belong to the same warm backup group. The user plane management device may include: a receiving unit 1001 and a sending unit 1002.

The receiving unit 1001 is used to receive the user data of the first user plane device sent by the first control plane device, and the first control plane device is used to manage the first user plane device; and to receive the second user plane device sent by the second control plane device. User data of the device, and the second control plane device is used to manage the second user plane device.

Optionally, the sending unit 1002 is configured to send the user data of the first user plane device to the second control plane device, so that the second control plane device manages the first user plane device based on the user data of the first user plane device.

Figure 21 is a block diagram of a user plane management device provided by an embodiment of the present application. The user plane management device can be implemented as all or part of the address server through software, hardware, or a combination of the two. The address server and the first control plane The device is connected to the second control plane device, the first control plane device is connected to the first user plane device and the second user plane device, the second control plane device is connected to the first user plane device and the second user plane device, the first user The user plane device and the second user plane device belong to the same warm backup group. The user plane management device may include: an address allocation unit 1101.

Wherein, the address allocation unit 1101 is used to respond to the first address request sent by the first control plane device, the address server allocates the first address to the first user plane device, and the first control plane device is used to manage the first user plane device; respond In response to the second address request sent by the second control plane device, the address server allocates a second address to the second user plane device, and the second control plane device is used to manage the second user plane device.

It should be noted that when the user plane management device provided in the above embodiment performs control plane switching, only the division of the above functional units is used as an example. In actual applications, the above functions can be allocated to different functional units as needed. Completion means dividing the internal structure of the device into different functional units to complete all or part of the functions described above. In addition, the user plane management device provided by the above embodiments and the user plane management method embodiments belong to the same concept. Please refer to the method embodiments for the specific implementation process, which will not be described again here.

Figure 22 shows a schematic structural diagram of the user plane management device 150 provided by the embodiment of the present application. The user plane management device 150 shown in FIG. 22 is used to perform operations related to the user plane management method shown in any of the above-mentioned FIGS. 9 to 17 . The user plane management device 150 can be implemented by a general bus architecture. The user plane management device 150 may be the aforementioned control plane device, user plane device, database server or address server.

As shown in Figure 22, the user plane management device 150 includes at least one processor 151, a memory 153, and at least one communication interface 154.

The processor 151 is, for example, a general central processing unit (CPU), a digital signal processor (DSP), a network processor (NP), a data processing unit (DPU), A microprocessor or one or more integrated circuits used to implement the solution of the present application. For example, the processor 151 includes an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. PLD is, for example, a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a general array logic (GAL), or any combination thereof. It may implement or execute various logical blocks, modules and circuits described in connection with the disclosure of the embodiments of this application. The processor may also be a combination that implements computing functions, such as a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.

Optionally, the user plane management device 150 also includes a bus. The bus is used to transfer information between components of the user plane management device 150 . The bus can be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus can be divided into address bus, data bus, control bus, etc. For ease of presentation, only one thick line is used in Figure 22, but it does not mean that there is only one bus or one type of bus.

The memory 153 is, for example, a read-only memory (ROM) or other type of static storage device that can store static information and instructions, or a random access memory (random access memory, RAM) or a device that can store information and instructions. Other types of dynamic storage devices, such as electrically erasable programmable read-only memory (EEPROM), compact disc read-only memory (CD-ROM) or other optical disk storage, optical discs Storage (including compact disc, laser disc, optical disc, digital versatile disc, Blu-ray disk, etc.), disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited thereto. The memory 153 exists independently, for example, and is connected to the processor 151 through a bus. The memory 153 may also be integrated with the processor 151.

The communication interface 154 uses any device such as a transceiver for communicating with other devices or a communication network. The communication network can be Ethernet, a radio access network (RAN) or a wireless local area network (WLAN), etc. The communication interface 154 may include a wired communication interface and may also include a wireless communication interface. Specifically, the communication interface 154 can be an Ethernet (Ethernet) interface, a Fast Ethernet (FE) interface, a Gigabit Ethernet (GE) interface, an asynchronous transfer mode (Asynchronous Transfer Mode, ATM) interface, a wireless LAN ( wireless local area networks, WLAN) interface, cellular network communication interface or a combination thereof. The Ethernet interface can be an optical interface, an electrical interface, or a combination thereof. In this embodiment of the present application, the communication interface 154 can be used for the user plane management device 150 to communicate with other devices.

In specific implementation, as an embodiment, the processor 151 may include one or more CPUs, such as CPU0 and CPU1 as shown in FIG. 22 . Each of these processors may be a single-CPU processor or a multi-CPU processor. A processor here may refer to one or more devices, circuits, and/or processing cores for processing data (eg, computer program instructions).

In specific implementation, as an embodiment, the user plane management device 150 may include multiple processors, such as the processor 151 and the processor 155 shown in FIG. 22 . Each of these processors can be a single-core processor (single-CPU) or a multi-core processor (multi-CPU). A processor here may refer to one or more devices, circuits, and/or processing cores for processing data (such as computer program instructions).

In specific implementation, as an embodiment, the user plane management device 150 may also include an output device and an input device. Output devices communicate with processor 151 and can display information in a variety of ways. For example, the output device may be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector (projector), etc. Input devices communicate with processor 151 and can receive user input in a variety of ways. For example, the input device may be a mouse, a keyboard, a touch screen device or a sensing device, etc.

In some embodiments, the memory 153 is used to store program code 1510 for executing the solution of the present application, and the processor 151 can execute the program code 1510 stored in the memory 153 . That is, the user plane management device 150 can implement the method provided by the method embodiment by using the processor 151 to execute the program code 1510 in the memory 153 . Program code 1510 may include one or more software modules. Optionally, the processor 151 itself can also store program codes or instructions for executing the solution of the present application.

In a specific embodiment, the user plane management device 150 in the embodiment of the present application may correspond to the controller in each of the above method embodiments. The processor 151 in the user plane management device 150 reads the instructions in the memory 153, so that Figure 22 The user plane management device 150 shown is capable of performing all or part of the operations performed by the controller.

Specifically, the processor 151 is configured to receive a first message. The first message is used to instruct the management device of the first user plane device to switch to the first control plane device. The first user plane device is the multi-user plane device. Any one of the user plane devices; in response to the first message, manage the first user plane device.

Other optional implementations will not be described again here for the sake of brevity.

Each step of the user plane management method shown in any one of FIGS. 9 to 17 is completed by instructions in the form of hardware integrated logic circuits or software in the processor of the user plane management device 150 . Combined with the methods disclosed in the embodiments of this application The steps can be directly implemented by a hardware processor, or executed by a combination of hardware and software modules in the processor. The software module can be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other mature storage media in this field. The storage medium is located in the memory, and the processor reads the information in the memory and completes the steps of the above method in combination with its hardware. To avoid repetition, the details will not be described here.

An embodiment of the present application also provides a chip, including: an input interface, an output interface, a processor and a memory. The input interface, output interface, processor and memory are connected through internal connection paths. The processor is used to execute the code in the memory. When the code is executed, the processor is used to execute any of the above user plane management methods.

It should be understood that the above-mentioned processor may be a CPU, or other general-purpose processor, DSP, ASIC, FPGA or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor can be a microprocessor or any conventional processor, etc. It is worth noting that the processor may be a processor that supports ARM architecture.

Further, in an optional embodiment, there are one or more processors and one or more memories. Alternatively, the memory may be integrated with the processor, or the memory may be provided separately from the processor. The above-mentioned memory may include read-only memory and random access memory and provide instructions and data to the processor. Memory may also include non-volatile random access memory. For example, the memory may also store reference blocks and target blocks.

The memory may be volatile memory or non-volatile memory, or may include both volatile and non-volatile memory. Among them, the non-volatile memory can be ROM, PROM, EPROM, EEPROM or flash memory. Volatile memory can be RAM, which acts as an external cache. By way of illustration, but not limitation, many forms of RAM are available. For example, SRAM, DRAM, SDRAM, DDR SDRAM, ESDRAM, SLDRAM and DR RAM.

In the embodiment of the present application, a computer-readable storage medium is also provided. The computer-readable storage medium stores computer instructions. When the computer instructions stored in the computer-readable storage medium are executed by the user plane management device 150, the user plane is The management device 150 executes the user plane management method provided above.

In the embodiment of the present application, a computer program product containing instructions is also provided. When run on the user plane management device 150, the user plane management device 150 causes the user plane management device 150 to execute the user plane management method provided above.

In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions described in this application are generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in or transmitted from one computer-readable storage medium to another, e.g., the computer instructions may be transferred from a website, computer, server, or data center Transmission to another website, computer, server or data center through wired (such as coaxial cable, optical fiber, digital subscriber line) or wireless (such as infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that contains one or more available media integrated. The available media may be magnetic media (eg, floppy disk, hard disk, magnetic tape), optical media (eg, DVD), or semiconductor media (eg, Solid State Disk), etc.

In the embodiment of the present application, a communication system is also provided. The communication system includes a control plane device, a user plane device, Database server and address server.

The control plane device is used to execute the user plane management method shown in Figure 9. The user plane device is used to execute the user plane management method shown in Figure 10. The database server is used to execute the user plane management method shown in Figure 15. Management method, the address server is used in the user plane management method shown in Figure 17.

In a possible implementation, the communication system includes at least two control plane devices and at least two user plane devices; before a communication failure occurs, each of the at least two control plane devices Each control plane device communicates with at least one user plane device.

Those of ordinary skill in the art can understand that all or part of the steps to implement the above embodiments can be completed by hardware, or can be completed by instructing relevant hardware through a program. The program can be stored in a computer-readable storage medium. The above-mentioned The storage media mentioned can be read-only memory, magnetic disks or optical disks, etc.

The above are only optional embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application. All are covered by the protection scope of this application. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Unless otherwise defined, technical or scientific terms used herein shall have their ordinary meaning as understood by a person of ordinary skill in the art to which this application belongs. "First", "second", "third" and similar words used in the specification and claims of this patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. . Likewise, "a" or "one" and similar words do not indicate a quantitative limit, but rather indicate the presence of at least one. "Including" or "includes" and other similar words mean that the elements or things appearing before "includes" or "includes" cover the elements or things listed after "includes" or "includes" and their equivalents, and do not exclude others. Component or object.

The above is only an embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

A user plane management method, characterized in that the method is applied to a first control plane device, the first control plane device is connected to a plurality of user plane devices, and the plurality of user plane devices are also connected to a second control plane device. Device connection, the method includes:

The first control plane device receives a first message. The first message is used to instruct the management device of the first user plane device to switch to the first control plane device. The first user plane device is the plurality of Any user plane device among the user plane devices;

In response to the first message, the first control plane device manages the first user plane device.
The method according to claim 1, characterized in that the first control plane device receives the first message, including:

The first control plane device receives the first message sent by the first user plane device.
The method according to claim 1, characterized in that the first control plane device receives the first message, including:

The first control plane device receives the first message sent by the second control plane device.
The method according to any one of claims 1 to 3, characterized in that, before the first control plane device receives the first message, the first user plane device is managed by the second control plane device, so The first message described above was received under any of the following conditions:

Communication failure between the first user plane device and the second control plane device, change in priority of the second control plane device, change in load of the second control plane device, and restart of the second control plane device.
The method according to any one of claims 1 to 4, characterized in that the first user plane device and the second user plane device belong to the same warm backup group, and when the first control plane device receives the After receiving a message, the first user plane device is managed by the first control plane device, and the second user plane device is managed by the second control plane device.
The method according to any one of claims 1 to 5, characterized in that the first control plane device stores management attributes of the plurality of user plane devices, and the management attributes are remote management or local management. , the first control plane device is used to manage the user plane device whose management attribute is local management;

After receiving the first message, the first control plane device also includes:

The first control plane device updates the management attribute of the first user plane device from remote management to local management.
The method according to claim 6, characterized in that after the first control plane device receives the first message, the method further includes:

The first control plane device sends a notification message to the second control plane device. The notification message is used to notify the second control plane device to update the management attributes of the first user plane device from local management to remote management. terminal management, so that the second control plane device stops managing the first user plane device.
The method according to any one of claims 1 to 7, characterized in that the first control plane device manages the first user plane device, including:

The first control plane device obtains user data of the first user plane device;

The first control plane device manages the first user plane device based on the user data of the first user plane device.
The method of claim 8, wherein the first control plane device obtains user data of the first user plane device, including:

The first control plane device obtains user data of the first user plane device from a database server. The database server includes users of user plane devices managed locally by the first control plane device and the second control plane device. data.
The method of claim 8, wherein the first control plane device obtains user data of the first user plane device, including:

The first control plane device obtains user data of the first user plane device from the second control plane device.
The method according to any one of claims 1 to 10, characterized in that the method further includes:

The first control plane device receives a second message sent by the first user plane device, where the second message is used to indicate a link failure between the first user plane device and the network;

The first control plane device sends the user data of the first user plane device to other user plane devices belonging to the same warm standby group as the first user plane device.
The method according to any one of claims 1 to 10, characterized in that the method further includes:

The first control plane device detects a failure of the first user plane device;

The first control plane device sends the user data of the first user plane device to other user plane devices belonging to the same warm standby group as the first user plane device.
A user plane management method, characterized in that the method is applied to a first user plane device among a plurality of user plane devices, and the plurality of user plane devices are connected to a first control plane device and a second control plane device, The methods include:

The first user plane device sends a first message to the first control plane device, where the first message is used to instruct the management device of the first user plane device to switch to the first control plane device.
The method according to claim 13, characterized in that, before the first user plane device sends the first message to the first control plane device, the first user plane device is controlled by the second control plane device. Surface equipment management,

The first user plane device sends a first message to the first control plane device under any of the following conditions:

Communication failure between the first user plane device and the second control plane device, change in priority of the second control plane device, change in load of the second control plane device, and restart of the second control plane device.
The method according to claim 13 or 14, characterized in that the first user plane device and the second user plane device belong to the same warm standby group, and after the first user plane device sends the first message,

The first user plane device is managed by the first control plane device, and the second user plane device is managed by the second control plane device.
The method according to any one of claims 13 to 15, characterized in that before the first user plane device sends the first message to the first control plane device, the method further includes:

The first user plane device obtains information about other control plane devices that are used to connect to the first user plane device in addition to the second control plane device. The other control plane devices include the first control plane device. surface equipment;

The first user plane device determines the first control plane device among the other control plane devices based on the information of the other control plane devices.
The method according to claim 16, wherein the information of the other control plane devices includes at least one of load information, number information, and priority information of the other control plane devices.
The method according to any one of claims 13 to 17, characterized in that the method further includes:

The first user plane device sends a second message to the first control plane device, where the second message is used to indicate a link failure between the first user plane device and the network, so that the first control plane device The plane device sends the user data of the first user plane device to other user plane devices that belong to the same warm standby group as the first user plane device.
The method according to any one of claims 13 to 18, characterized in that the first user plane device is also connected to a third user plane device. Three control plane device connections, the method further includes:

The first user plane device sends a third message to the third control plane device. The third message is used to instruct the management device of the first user plane device to switch from the first control plane device to the third control plane device. Control surface equipment.
A user plane management method, characterized in that the method is applied to a database server, the database server is connected to a first control plane device and a second control plane device, and the first control plane device and the first user plane device is connected to a second user plane device, the second control plane device is connected to the first user plane device and the second user plane device, and the first user plane device and the second user plane device belong to the same Warm preparation group, the method includes:

The database server receives the user data of the first user plane device sent by the first control plane device, and the first control plane device is used to manage the first user plane device;

The database server receives the user data of the second user plane device sent by the second control plane device, and the second control plane device is used to manage the second user plane device.
The user plane management method according to claim 20, characterized in that the method further includes:

The database server sends the user data of the first user plane device to the second control plane device, so that the second control plane device manages the first user data based on the user data of the first user plane device. User plane equipment.
A user plane management method, characterized in that the method is applied to an address server, the address server is connected to a first control plane device and a second control plane device, and the first control plane device is connected to a first user plane device. is connected to a second user plane device, the second control plane device is connected to the first user plane device and the second user plane device, and the first user plane device and the second user plane device belong to the same Warm preparation group, the method includes:

In response to the first address request sent by the first control plane device, the address server allocates a first address to the first user plane device, and the first control plane device is used to manage the first user plane device. ;

In response to the second address request sent by the second control plane device, the address server allocates a second address to the second user plane device, and the second control plane device is used to manage the second user plane device. .
A user plane management method, characterized in that the method is applied to a broadband access gateway system. The broadband access gateway system includes a first control plane device, a second control plane device and a plurality of user plane devices. The second control plane device is used to manage the first user plane device among the plurality of user plane devices, and the method includes:

The first user plane device sends a first message to the first control plane device, where the first message is used to instruct the management device of the first user plane device to switch to the first control plane device;

The first control plane device receives the first message;

In response to the first message, the first control plane device manages the first user plane device.
The user plane management method according to claim 23, characterized in that the first user plane device is also connected to a third control plane device, and the method further includes:

The first user plane device sends a third message to the third control plane device. The third message is used to instruct the management device of the first user plane device to switch from the first control plane device to the third control plane. equipment;

The third control plane device receives the third message;

In response to the third message, the third control plane device manages the first user plane device.
A user plane management method, characterized in that the method is applied to a broadband access gateway system, which includes a first control plane device, a second control plane device, a database server and multiple user plane devices , the method includes:

The first control plane device sends the user data of the first user plane device among the plurality of user plane devices to the database server, and the first control plane device is used to manage the first user plane device;

The second control plane device sends user data of a second user plane device among the plurality of user plane devices to the database server, and the second control plane device is used to manage the second user plane device; The first user plane device and the second user plane device belong to the same warm standby group.
The user plane management method according to claim 25, characterized in that the method further includes:

The database server sends the user data of the first user plane device to the second control plane device;

The second control plane device manages the first user plane device based on user data of the first user plane device.
The user plane management method according to claim 26, wherein the broadband access gateway system further includes a third control plane device, and the method further includes:

The database server sends the user data of the first user plane device to the third control plane device;

The third control plane device manages the first user plane device based on user data of the first user plane device.
A control plane device, characterized in that the control plane device includes a processor and a memory, the memory is used to store software programs, and the processor runs or executes the software programs stored in the memory to enable The control plane device implements the method according to any one of claims 1 to 12.
A user plane device, characterized in that the user plane device includes a processor and a memory, the memory is used to store software programs, and the processor runs or executes the software programs stored in the memory to enable The user plane device implements the method according to any one of claims 13 to 19.
A database server, characterized in that the database server includes a processor and a memory, the memory is used to store software programs, and the processor runs or executes the software programs stored in the memory to make the The database server implements the method as claimed in claim 20 or 22.
An address server, characterized in that the address server includes a processor and a memory, the memory is used to store a software program, and the processor runs or executes the software program stored in the memory to enable the The address server implements the method as claimed in claim 22.
A communication system, characterized in that the communication system includes a control plane device, a user plane device, a database server and an address server;

The control plane device is used to perform the method according to any one of claims 1 to 12, the user plane device is used to perform the method according to any one of claims 13 to 19, and the database server is used to To perform the method according to claim 20 or 21, the address server is used to perform the method according to claim 22.
A computer-readable storage medium, characterized in that the computer-readable storage medium is used to store program code executed by a processor, and the program code includes a method for implementing the method described in any one of claims 1 to 22. Method instructions.