CN114465834A

CN114465834A - User access processing method and related equipment thereof

Info

Publication number: CN114465834A
Application number: CN202011133766.9A
Authority: CN
Inventors: 徐健
Original assignee: Beijing Huawei Digital Technologies Co Ltd
Current assignee: Beijing Huawei Digital Technologies Co Ltd
Priority date: 2020-10-21
Filing date: 2020-10-21
Publication date: 2022-05-10

Abstract

The embodiment of the application discloses a user access processing method and related equipment thereof, which are used for realizing detection response processing of a user terminal in AGW equipment, realizing detection response of the user terminal without UP equipment, completing the processes of online, detection, continuous lease and the like of the user terminal with higher quality, and avoiding the condition that the user terminal is disconnected in any migration scene process. The method comprises the following steps: the method comprises the steps that an access gateway AGW device receives a first request sent by a user terminal, wherein the first request comprises a detection request; the method comprises the steps that AGW equipment receives a user detection table item sent by control plane CP equipment; and the AGW equipment performs detection response processing on the detection request based on the user detection table entry.

Description

User access processing method and related equipment thereof

Technical Field

The embodiment of the application relates to the field of access networks, in particular to a user access processing method and related equipment.

Background

With the development of Software Defined Networking (SDN) technology and Network Function Virtualization (NFV) technology, a metropolitan area network (metropolitan area network) is evolving from a traditional network-centric architecture to a data center-centric network architecture, and a traditional network element device is evolving from specialization to generalization. While the traditional network element device evolves from specialization to generalization, two decoupling problems can be mainly solved: decoupling control and forwarding, and decoupling software and hardware. With the advent of various internet services, the demand for the number of sessions of users supported by Broadband Network Gateway (BNG) devices is increasing, and the demand for the capability of BNG devices to provide services to the outside is also increasing. And the BNG device, as a conventional broadband access gateway device, can implement the aforementioned two decoupling problems based on the SDN/NFV architecture.

However, the same BNG device is used as both a subscriber access device and a subscriber forwarding device, so that the BNG device cannot solve the decoupling problem of the on-line and forwarding of the subscriber. However, since the detection keep-alive function of the user terminal needs to be implemented on the current User Plane (UP) device, when the UP device fails and has unbalanced load, a Control Plane (CP) device needs to perform balance adjustment on the user terminal on the UP device, such as: the CP device migrates part of the user terminals from the UP device with the fault to another UP device, and the detection keep-alive function of the user terminal needs to be ensured not to cause the problem that the user terminal is disconnected and the like due to the abnormity in the migration process.

Therefore, how to ensure that the detection keep-alive function of the user terminal does not cause the user terminal to drop due to abnormality in the migration process becomes a problem which needs to be solved urgently.

Disclosure of Invention

The embodiment of the application provides a user access processing method and related equipment thereof, which are used for directly realizing detection response processing of a user terminal in AGW equipment, realizing detection response of the user terminal without UP equipment, completing the processes of online, detection, continuous lease and the like of the user terminal with higher quality, and avoiding the condition that the user terminal is disconnected in any migration scene process.

In a first aspect, a method for user access processing is provided, where the method includes: the method comprises the steps that access gateway AGW equipment receives a first request sent by a user terminal, wherein the first request comprises a detection request; the method comprises the steps that AGW equipment receives a user detection table item sent by control plane CP equipment; and the AGW equipment performs detection response processing on the detection request based on the user detection table entry. By the above mode, after the AGW device receives the detection request and receives the user detection table entry sent by the CP device, the detection response processing of the user terminal can be directly realized in the AGW device, the detection response of the user terminal is not required to be realized by the UP device, the processes of online, detection, continuous lease and the like of the user terminal can be completed with higher quality, and the condition that the user terminal is disconnected in any migration scene process is avoided.

In a possible embodiment, after the AGW device performs probe response processing on the probe request based on the user probe entry, the method further includes: the AGW device receives a first message sent by the CP device, where the first message includes a user virtual MAC, where the user virtual MAC is used to identify a first user terminal corresponding to a second UP device, and the first user terminal is one or more of the user terminals; the AGW device migrates the forwarding traffic of the first user terminal corresponding to the user virtual MAC to a first UP device, and the load condition of the first UP device is better than the load condition of the second UP device. In this way, the AGW device sends the access request to the CP device, so that the CP device can migrate the user terminal in the failure scenario from the overloaded second UP device to the first UP device after determining the first UP device, thereby better completing the traffic forwarding for the user terminal through the first UP device, and further not affecting the front-end AGW device to complete the detection response processing.

In one possible embodiment, the first request further comprises an access request; the method further comprises the following steps: the AGW device sends an access request to the control plane CP device through at least one user plane UP device.

In one possible embodiment, the method further comprises: the method comprises the steps that AGW equipment monitors the network state of a user terminal; and when the network state of the user terminal is in a non-connection state, the AGW equipment sends a second message to the CP equipment, wherein the second message is used for indicating the CP equipment to carry out offline processing on the user terminal.

In a second aspect, an embodiment of the present application provides another method for user access processing, where the method includes: the control plane CP equipment generates a user detection table item; and the control plane CP equipment sends a user detection table entry to the access gateway AGW equipment, wherein the user detection table entry is used for indicating the AGW equipment to perform detection response processing on a detection request sent by the user terminal.

In a possible embodiment, after the control plane CP device sends the user probing entry to an access gateway AGW device, the method further includes: the CP device determines a first User Plane (UP) device, wherein the first UP device is one or more of at least one UP device; the CP device sends a user forwarding entry to the first UP device, where the user forwarding entry includes a user virtual MAC, the user virtual media storage control MAC is used to identify a first user terminal corresponding to a second UP device, a load condition of the first UP device is better than a load condition of the second UP device, the second UP device is any one of the at least one UP device, and the first user terminal is one or more of the user terminals; migrating the user virtual MAC to the first UP device by the CP device; the CP device sends a first message to the AGW device through the first UP device, where the first message includes the user virtual MAC, and the first message is used to instruct the AGW device to migrate a forwarding traffic of a first user terminal corresponding to the user virtual MAC to the first UP device. In this way, the AGW device sends the access request to the CP device, so that the CP device can migrate the user terminal in the failure scenario from the overloaded second UP device to the first UP device after determining the first UP device, thereby better completing the traffic forwarding for the user terminal through the first UP device, and further not affecting the front-end AGW device to complete the detection response processing.

In one possible embodiment, before the control plane CP device generates the user probing entry, the method further includes: and the CP equipment receives the access request transmitted by the AGW equipment through the at least one UP equipment.

In one possible embodiment, the migrating the user virtual MAC to the first UP device by the CP device includes: and migrating the user virtual MAC to the first UP device and migrating the routing address corresponding to the second UP device to the first UP device by the CP device based on the routing address corresponding to the second UP device, wherein the routing address corresponding to the second UP device corresponds to the user virtual MAC.

In one possible embodiment, migrating, by the CP device, the user virtual MAC to the first UP device based on the routing address corresponding to the second UP device, includes: the CP device segments the route address corresponding to the second UP device to obtain at least one section of route address, wherein each section of route address corresponds to a user virtual MAC respectively; and the CP equipment migrates the corresponding user virtual MAC to the corresponding first UP equipment based on each section of routing address.

In one possible embodiment, before the CP device determines the first UP device, the method further comprises: CP equipment obtains authorization SLA type information, and the authorization SLA type information is used for reflecting the load condition of at least one UP equipment; correspondingly, the CP device determines a first UP device, including: the CP device determines the first UP device based on the preconfigured policy and the authorized SLA type information.

In one possible embodiment, the method further comprises: the CP equipment receives a second message sent by the AGW equipment; and the CP equipment carries out offline processing on the user terminal based on the second message.

In a third aspect, an embodiment of the present application provides an AGW apparatus, where the AGW apparatus may include: the system comprises a receiving and sending module, a sending and receiving module and a sending and receiving module, wherein the receiving and sending module is used for receiving a first request sent by a user terminal, and the first request comprises a detection request; the receiving and sending module is used for receiving the user detection table item sent by the control plane CP equipment; and the processing module is used for carrying out detection response processing on the detection request according to the user detection table entry.

In a possible embodiment, the transceiver module is further configured to receive a first message sent by the CP device after performing probe response processing on the probe request based on the user probe entry, where the first message includes a user virtual MAC, and the user virtual MAC is used to identify a first user terminal corresponding to a second user plane UP device;

the processing module is configured to migrate a forwarding traffic of a first user terminal corresponding to the user virtual MAC to a first UP device, where a load condition of the first UP device is better than a load condition of the second UP device.

In one possible embodiment, the first request further comprises an access request; the transceiver module is further configured to send an access request to a control plane CP device through at least one user plane UP device, so that the CP device replies to the access request through a first UP device, where the first UP device is one or more of the at least one UP device.

In a possible embodiment, the processing module is further configured to monitor a network status of the user terminal; and the receiving and sending module is used for sending a second message to the CP equipment when the network state of the user terminal is in a non-connection state, wherein the second message is used for indicating the CP equipment to carry out offline processing on the user terminal.

In a fourth aspect, an embodiment of the present application provides a CP device, where the CP device may include: the generating unit is used for generating a user detection table item; and the sending unit is used for sending a user detection table entry to the access gateway AGW device, wherein the user detection table entry is used for indicating the AGW device to perform detection response processing on a detection request sent by the user terminal.

In one possible embodiment, the CP device further includes: a first processing unit; the first processing unit is configured to determine a first user plane UP device after sending the user detection entry to an access gateway AGW device, where the first UP device is one or more of at least one UP device; the sending unit is configured to send a user forwarding entry to the first UP device, where the user forwarding entry includes a user virtual MAC, where the user virtual media storage control MAC is configured to identify a first user terminal corresponding to a second UP device, a load condition of the first UP device is better than a load condition of the second UP device, the second UP device is any one of the at least one UP device, and the first user terminal is one or more of the user terminals; the first processing unit is configured to migrate the user virtual MAC to the first UP device; the sending unit is configured to send a first message to the AGW device, where the first message includes the user virtual MAC, and the first message is used to instruct the AGW device to migrate a forwarding traffic of a first user terminal corresponding to the user virtual MAC to the first UP device.

In one possible embodiment, the CP device further includes: a first receiving unit, configured to receive, before generating the user probing entry, an access request transmitted by the AGW device through the at least one UP device.

In a possible embodiment, the first processing unit is configured to migrate the user virtual MAC to the first UP device according to a routing address corresponding to the second UP device, and migrate a routing address corresponding to the second UP device to the first UP device, where the routing address corresponding to the second UP device corresponds to the user virtual MAC.

In a possible embodiment, the first processing unit is configured to: segmenting the routing address corresponding to the second UP device to obtain at least one segment of routing address, wherein each segment of routing address corresponds to one user virtual MAC respectively; the corresponding user virtual MAC is migrated to the corresponding first UP device based on each segment of the routing address.

In one possible embodiment, the CP device further includes: a second receiving unit;

the second receiving unit is used for obtaining the authorized service level agreement SLA type information before determining the first UP device, wherein the authorized SLA type information is used for reflecting the load condition of at least one UP device; a first processing unit for determining a first UP device based on a pre-configured policy and authorized SLA type information.

In one possible embodiment, the CP device further includes: a third receiving unit;

the third receiving unit is configured to receive a second message sent by the AGW device; and the second processing unit is used for performing offline processing on the user terminal according to the second message.

A fifth aspect provides a network device, comprising: at least one processor and a memory, the memory storing a computer program operable on the processor, the network device performing the method of any one of the possible implementations of the first aspect or the first aspect, the second aspect or the second aspect as described above, when the computer program is executed by the processor.

A sixth aspect provides a chip or a chip system, where the chip or the chip system includes at least one processor and a communication interface, where the communication interface and the at least one processor are interconnected by a line, and the at least one processor is configured to execute a computer program or instructions to perform the method for user access processing described in any one of the first aspect to any one of the possible implementations of the first aspect, the second aspect, or any one of the possible implementations of the second aspect.

The communication interface in the chip may be an input/output interface, a pin, a circuit, or the like.

In one possible implementation, the chip or chip system described above in this application further comprises at least one memory having instructions stored therein. The memory may be a storage unit inside the chip, such as a register, a cache, etc., or may be a storage unit of the chip (e.g., a read-only memory, a random access memory, etc.).

A seventh aspect provides a computer storage medium for storing computer software instructions for the trusted chip described above, including a program for executing a program designed for a CP device or an AGW device.

An eighth aspect provides a computer program product comprising computer software instructions that can be loaded by a processor to implement the method of user access handling of any one of the above first aspect, second aspect or any one of the possible implementations of the second aspect.

According to the technical scheme, the embodiment of the application has the following beneficial effects:

in the embodiment of the application, after the AGW device receives the detection request and receives the user detection table entry sent by the CP device, the detection response processing of the user terminal can be directly realized in the AGW device, the detection response of the user terminal is not required to be realized through the UP device, the processes of online, detection, continuous lease and the like of the user terminal can be finished with higher quality, and the condition that the user terminal is disconnected in any migration scene process is avoided.

Drawings

Fig. 1 is a schematic diagram of a migration user terminal according to an embodiment of the present application;

fig. 2 is a schematic diagram of another migration user terminal according to an embodiment of the present application;

fig. 3 is a diagram of a network architecture for a new user access according to an embodiment of the present application;

fig. 4 is a diagram of another network architecture for user access according to an embodiment of the present application;

fig. 5 is a schematic flowchart of a user access processing method according to an embodiment of the present application;

fig. 6 is a schematic flowchart of another user access processing method according to an embodiment of the present application;

fig. 7 is a schematic structural diagram of a network device according to an embodiment of the present application;

fig. 8 is a schematic structural diagram of an AGW apparatus according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of a CP device according to an embodiment of the present application;

fig. 10 is a schematic structural diagram of another CP device according to an embodiment of the present application.

Detailed Description

The technical solutions in the present application will be described in detail below with reference to the drawings in the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments. The terms "first," "second," "third," "fourth," and the like in the description and in the claims of the present application and in the drawings described above, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that the embodiments described herein may be practiced otherwise than as specifically illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

With the development of software-defined networking technologies and networking function virtualization technologies, metropolitan area networks are moving from traditional architectures with networks as cores to architectures with data centers as cores; the traditional network element equipment also evolves from specialization to generalization, and two decouples need to be solved in the process of the evolution of the network element equipment towards generalization: i.e. decoupling of control and forwarding and decoupling of software and hardware. The control and forwarding result may also be called CU separation, that is, a network architecture in which the CP device and the UP device are decoupled, and the CU separation implementation may be implemented as follows:

the first implementation mode comprises the following steps: the control plane and the forwarding plane are located on different hardware devices.

That is, it is understood that the CP device and the UP device are two separate and distinct devices. Alternatively, the CP device is distributed at a different location than the UP device. For example, the CP device is located in a cloud data center, and the UP device is deployed at a suitable position in the network according to a requirement. In this way, the deployment of the control plane and the forwarding plane is made more flexible.

The second implementation mode comprises the following steps: the control plane and the forwarding plane are located on the same hardware device and have separated functions.

In this implementation, the physical entity of the CP device and the physical entity of the UP device are the same device. For example, the CP device and the UP device operate in the same host, the same server, or the same terminal.

It is understood that both the CP device and the UP device described above are implemented via virtualization technologies. CP devices are for example referred to as virtual CP (vCP) and UP devices are for example referred to as virtual UP (vUP). For example, the CP device is a virtual machine, and the UP device is a virtual router or a virtual switch. In one example, the CP device and the UP device are both implemented based on a common physical server in combination with NFV technology, and the CP device and the UP device are two different Virtual Network Functions (VNFs). For example, both the CP device and the UP device are network elements virtualized through an X86 server.

In another example, the CP device is implemented via virtualization technology and the UP device is implemented via a conventional network device. A UP device is for example referred to as physical UP.

The present embodiment does not limit the number of UP devices in the communication system. Optionally, the CU separated communication system includes multiple UP devices. Alternatively, the multiple UP devices in a CU-separated communication system are distributed at different locations. Optionally, multiple UP devices in the CU-separated communication system collaboratively share forwarding tasks based on a distributed architecture.

It is worth noting that the "CU separation" may have a different name. For example, different standards, different versions of the same standard, different vendors, different application scenarios may have different designations for "CU split". For example, the term CU split may also sometimes be referred to as "control and forwarding split", "steering split", "control plane and user plane split", "control and user split", and so on. In addition, "CP" may have a different name. For example, different standards, different versions of the same standard, different vendors, different application scenarios may have different designations for "CP". For example, the term "CP" may sometimes also be referred to as "CP function (CPF)" or "CP plane". "CP", "CPF", and "CP plane" are used interchangeably herein. The term "CP device" refers to any device that implements a CP function. Further, "UP" may also have a different name. For example, different standards, different versions of the same standard, different vendors, different application scenarios may have different designations for "UP". For example, the term "UP" may also sometimes be referred to as "UP function (UPF)" or "UP plane". "UP," "UPF," and "UP face" are used interchangeably herein. The term "UP device" refers to any device that implements the UP functionality.

The BNG device is used as a traditional broadband access gateway device and realizes the functions of user authentication, access control, flow scheduling and the like in the user broadband access service; with the endless emergence of various internet services, the requirements on the number of sessions of users supported by BNG are continuously increased, the access bandwidth of users is continuously increased, and especially the requirements on the capability of BNG system to provide open and programmable services are also higher and higher. In view of these needs, in the architecture based on software-defined network technology and network function virtualization technology, the decoupling of control and forwarding and the decoupling of software and hardware are performed on the conventional BNG device, forming a BNG system with CU separation. The BNG system with separated CUs extracts and concentrates the user management functions on a plurality of BNG devices to form CP devices, and the BNG devices reserve the routing function and the forwarding function to form UP devices.

The BNG system with the separated CUs has the advantages brought by the framework with the separated CUs on the basis of keeping the original functions of the BNG. For example, the BNG system with CU separation can have multiple UP devices, the CP device schedules forwarding tasks of traffic processed by the multiple UP devices, and the CP device allocates resources to the multiple UP devices, so that the utilization rate and reliability of the devices of the BNG system under CU separation architecture can be greatly improved compared with a mode of implementing the BNG system by a single device. It is worth noting that the "BNG system with CU split" in the embodiments of the present application may have different names. For example, different standards, different versions of the same standard, different vendors, different application scenarios may have different designations for "BNG system with split CUs". For example, the term "CU-separated BNG system" may sometimes also be referred to as "separated BNG system (DBNG)", and correspondingly, a CP device in a CU-separated BNG system may be referred to as DBNG-CP and a UP device in a CU-separated BNG system may be referred to as DBNG-UP. As another example, the term "CU-separated BNG system" may also be sometimes referred to as "virtual broadband network gateway (vBNG) control plane and user plane separated system (CU system)", i.e., "vBNG CU system", and accordingly, CP devices in the CU-separated BNG system may be referred to as vBNG-CP, and UP devices in the CU-separated BNG system may be referred to as vBNG-UP. As another example, the term "CU separated BNG system" may sometimes also be referred to as "virtual broadband remote access server (vrbras) CU system", i.e., "vrbras CU system", and accordingly, the CP device in the CU separated BNG system may be referred to as vrbras-CP and the UP device in the CU separated BNG system may be referred to as vrbras-UP. "DBNG", "vBNG CU system" and "vbrs CU system" are used interchangeably herein.

Under the CU separation architecture, the BNG device, as a conventional broadband access gateway device, can implement the aforementioned two decoupling problems based on the SDN/NFV architecture. However, the same BNG device is used as both a subscriber access device and a subscriber forwarding device, so that the BNG device cannot solve the decoupling problem of the on-line and forwarding of the subscriber. And because the detection keep-alive function of the user terminal needs to be implemented on the current UP device, when the UP device fails, the load is unbalanced, and the like, the CP device needs to perform balance adjustment on the user terminal on the UP device, such as: the CP device migrates part of the user terminals from the failed UP device to another UP device.

In the migration process, if the new UP device does not have the user forwarding table entry of the user terminal, the new UP device cannot complete the detection response function of the user terminal at this time, and at this time, the new UP device can complete the corresponding detection response based on the user forwarding table entry of the user terminal after the CP device issues the user forwarding table entry to the new UP device. Obviously, before the CP device has not issued the user forwarding entry of the user terminal to the new UP device, the user terminal may be dropped because no corresponding probe response is obtained.

For example, the CP device performs online scheduling on the user terminal, which may refer to fig. 1 or fig. 2. Fig. 1 shows a schematic diagram of a migrating user terminal, and fig. 2 shows a schematic diagram of another migrating user terminal. As can be seen from fig. 1, the interface in UP device 1(UP1) is connected to User terminal 1(User 1), the interface in UP2 is connected to User 2, and the interface in UP3 is connected to User 3; if the interface of UP1 fails to connect User 1 due to the overload (as shown in the gray part of fig. 1), the CP device capable of performing User scheduling and migration among UP1, UP2 and UP3 may migrate User 1 in UP1 to UP2 or UP3 (for example, fig. 1 shows that User 1 is migrated to UP 2). However, if the CP has not yet issued the User forwarding entry of User 1 to the UP2, at this time, User 1 cannot normally access UP2, so that UP2 cannot perform a probe response on User 1, and further, User 1 is disconnected.

Similarly, FIG. 2 illustrates a process for implementing user migration based on user groups. As can be seen from FIG. 2, the interface in UP1 connects User group 1, and User group 1 may include User 1; the interface in UP2 connects User group 2 and User group 4, where User group 2 may include User 2 and User group 4 may include User 4; the interface in UP3 is connected to User group 3, and User group 3 may include User 3. If the interface of UP2 is overloaded at this time (e.g., gray portion as shown in fig. 2), the CP device may migrate user group 2 or user group 4 in UP2 into UP1 or UP3 (e.g., fig. 2 shows migration of user group 4 into UP 1). However, if the CP has not issued the user forwarding entry of the user group 4 to the UP1, the user group 4 cannot normally access to the UP1, so that the UP1 cannot perform a probe response on the user group 4, and the user group 4 needs to log off again to dial for reconnection.

It is understood that the above described interfaces where the CP device can schedule the UP device may include but are not limited to: a Control Packet Redirect Interface (CPRi), a management interface (Mi), and a control interface (SCi), which are not limited in this embodiment of the present application.

Based on this, to solve the above problem, an embodiment of the present application provides a new network architecture diagram for user access, as shown in fig. 3, a communication system includes at least one UP device and a CP device, and an Access Gateway (AGW) device is added in the communication system. The AGW device establishes a two-layer tunnel with at least one UP device through a Metro Edge Router (MER), and is interconnected with each UP device, for example: two-layer tunnels were established with pUP1, pUP2, and vUP 3. The AGW device can receive a request sent by a user terminal and intercept a detection request in the request so as to realize response to a detection keep-alive message in the detection request. In addition, the AGW device may also transmit an access request In the request to the CP device through at least one UP device, so that the CP device can process a user dialing protocol packet In the access request, perform user authentication with a remote user authentication In user service (RADIUS) interaction, and perform user authentication, authorization, charging, and the like based on the service server interaction; after the user passes the authentication, the CP device may issue information such as a user forwarding table, a user detection table, and the like to the corresponding UP, and after receiving the user forwarding table issued by the CP device, the UP device locally generates a user forwarding table according to the user forwarding table, then performs related service policy execution and traffic forwarding, and issues a route to the outside.

In addition, the AGW device can also directly monitor the network state of the user terminal, and can directly report information such as detection failure to the CP device when the network state of the user terminal is abnormal or the detection failure occurs in the process of detecting the user terminal to keep alive, so that the CP device can perform offline processing and the like on the user terminal.

It is understood that the pUP1, pUP2 and vUP3 described in FIG. 3 above can be backup UP devices for each other, namely: the pUP1, pUP2 and vUP3 can backup each other and share the traffic corresponding to the network by means of load sharing. However, it should be understood that in practical applications, other UP devices such as the pUP4, the pUP5 or vUP6 may also be included, and specific description is not limited in this embodiment of the present application. In addition, the user terminal described above may be a mobile terminal, a personal computer, an intelligent terminal, and the like, and is not specifically limited in this embodiment.

In addition, another network architecture schematic diagram for user access is also provided in the embodiment of the application. As shown in fig. 4, an AGW management module may be added to a virtual subscriber control unit (vSCU), so that the AGW management module can be used as a dial-up network element and a probe keep-alive network element of a user. And the user terminal dials from the AGW equipment to the CP equipment side to carry out user authentication and charging. After authorization and the like, the CP device can issue a user detection table item to the AGW device, the AGW device actively detects the user terminal, reports the keep-alive state of the user to the CP device side, and meanwhile, the AGW device is also responsible for responding to the active detection of the user terminal.

Based on the network architecture provided in fig. 3 or fig. 4, fig. 5 is a flowchart illustrating a method for user access processing according to an embodiment of the present application, and as shown in fig. 5, the method includes the following steps:

501. the user terminal sends a first request to the AGW device, wherein the first request comprises a probe request and an access request.

When a user needs to access a network, the user terminal may first send a first request to the AGW device, where the first request may include a probe request and an access request. Therefore, the AGW device can intercept the detection request, and can directly perform detection response processing on the user terminal after receiving the user detection table item issued by the CP device. Moreover, the AGW device may also send the access request to the CP device through at least one UP device, where the access request includes a user protocol dial message. For example, in the network scenario shown in fig. 3 or fig. 4, a user terminal sends a first request, an AGW device connected to the user terminal in the network broadcasts an access request corresponding to the user terminal to at least one UP device through a two-layer network, so that each UP device receives the access request, and each UP device sends the access request to a CP device.

502. The AGW device sends an access request to the CP device through at least one UP device.

In an embodiment, the CP device may receive, through at least one UP device, an access request sent by the AGW device, so as to respond to the access request and process the access request, for example: determining a specific access strategy, realizing user authentication and the like.

503. And the CP equipment sends the user detection table entry to the AGW equipment.

In the embodiment, after receiving an access request sent by the AGW device, the CP device performs user authentication, charging, and authorization through interaction with the service server. When the user terminal corresponding to the access request passes the authentication, the CP device may generate a user detection entry, and directly send the user detection entry to the AGW device, so that the AGW device performs a detection response to the user terminal that needs to access the network based on the user detection entry. Specifically, the user detection table entry may include, but is not limited to: a user interface, a Virtual Local Area Network (VLAN), an Internet Protocol (IP), a Media Access Control (MAC), a user gateway IP, or a user gateway MAC, which may be used to identify a series of parameters of the user terminal, and the specific description is not limited herein.

504. And the AGW equipment performs detection response processing on the detection request based on the user detection table entry.

In the embodiment, after receiving the user detection entry directly sent by the CP device, the AGW device may perform a detection response to the user terminal that needs to access the network based on the user detection entry. For example: and realizing detection response and the like on the first user terminal through the user detection table entry.

By the above mode, the CP device can directly implement the detection response to the user terminal that needs to access the network in the AGW device without issuing the user forwarding table to the UP device, thereby avoiding the user terminal from being disconnected due to the UP device not receiving the user forwarding table, and ensuring the stable access of the user terminal.

It can be understood that, in other embodiments, if a certain UP device fails, it is obvious that the user terminal connected to the failed UP device cannot forward the traffic. Therefore, on the basis of the description of fig. 5, please refer to fig. 6, which is a schematic flow chart of another method for user access processing provided in the embodiment of the present application, as shown in fig. 6:

601. the user terminal sends a first request to the AGW device, wherein the first request comprises a probe request and an access request.

602. The AGW device sends an access request to the CP device through at least one UP device.

603. And the CP equipment sends the user detection table entry to the AGW equipment.

604. And the AGW equipment performs detection response processing on the detection request based on the user detection table entry.

It should be understood that the steps 601-604 described above can be understood by referring to the steps 501-504 described above in fig. 5, and are not described herein again.

605. The CP device determines a first UP device, the first UP device being one or more of the at least one UP device.

In an embodiment, after the CP device receives the access request and enters the steady-state access, if a certain UP device fails, for example: a second UP device; the CP device may determine the load condition corresponding to each UP device, and then select a suitable UP device according to the load condition of each UP device to respond to the forwarding traffic of the user terminal on the failed UP device.

It can be appreciated that the load condition of the first UP device can be better than the load condition of other UP devices, such as: the first UP device has the least running business volume, etc.; and the first UP device can be one or more of the at least one UP device. For example: when the load condition of a certain UP device is too heavy, the CP device may determine the first UP device with a lighter load condition by determining the load condition of each UP device, so that the user terminal on the UP device with the too heavy load condition may be migrated to the first UP device, and respond to the forwarding traffic of the user terminal on the UP device with the too heavy load condition through the first UP device.

For example, the CP device may obtain an authorized Service Level Agreement (SLA) type information, and then determine the first UP device based on a preconfigured policy and the authorized SLA type information. It is to be understood that the authorized SLA type information described can be used to reflect the loading of each of the at least one UP device, or to reflect the quality attributes of the user terminal in each UP device.

In other embodiments, the CP device may further send a request to a universal flash storage (USF) device, and the USF device determines the first UP device based on the internally stored authorized SLA type information and the preconfigured policy after receiving the request. In this way, the USF device can feed back the relevant identification of the first UP device to the CP device, so that the CP device can clearly identify the at least one UP device as a suitable first UP device. It can be understood that in the embodiment of the present application, an implementation manner of determining the first UP device by the CP device is not limited, and in an actual application, the first UP device may also be determined based on other manners, which is not limited to be described herein.

When the load condition of the first UP device is better than that of the UP device needing to be migrated, the CP device determines to use the first UP device as a target UP device for responding to the forwarding traffic of the user terminal on the UP device due to the failure. And when the load condition of the plurality of first UP devices is better than that of the UP device when the migration is needed, the CP device determines to randomly select one or more UP devices from the plurality of first UP devices as the target UP device, so that the user terminal on the UP device with the overweight load condition is randomly migrated to the one or more first UP devices, and the CP device responds to the forwarding traffic of the user terminal on the UP device due to the fault.

606. The CP device sends a user forwarding table item to the first UP device, wherein the user forwarding table item comprises a user virtual MAC, the user virtual MAC is used for identifying a first user terminal corresponding to the second UP device, the load condition of the first UP device is superior to that of the second UP device, and the second UP device is any one of at least one UP device.

In this embodiment, the second CP device may be understood as a failed UP device, or an UP device whose load condition is too heavy to cause the connected first user terminal to drop, etc. Since the user forwarding table entry is a forwarding table entry corresponding to the first user terminal on the second UP device, the user forwarding table entry may include a user virtual MAC, and the user virtual MAC corresponds to a virtual MAC address on the second UP device, and the virtual MAC address corresponding thereto may be used as a three-layer gateway MAC of the first user terminal connected to the second UP device, so that the user virtual MAC may be used to identify the first user terminal corresponding to the second UP device; in addition, the IP address field to which the IP address of the first user terminal connected to the second UP device belongs is in one-to-one correspondence with the user virtual MAC described above. Therefore, after determining the first UP device, the CP device may send the user forwarding entry of the first user terminal corresponding to the second UP device to the first UP device, so that the CP device can respond to the forwarding traffic of the first user terminal, and the like, through the first UP device. It is to be understood that the first user terminal described as being connected to the second UP device may be one or more of the user terminals sending the access request.

607. The CP device migrates the user virtual MAC to the first UP device.

In an embodiment, when a first user terminal on a second UP device fails, or a connected first user terminal cannot access a network due to a load condition of the second UP device, a CP device needs to migrate the first user terminal on the second UP device to the first UP device, so as to be able to respond to a forwarding traffic of the first user terminal through the first UP device. Specifically, the CP device needs to migrate the user virtual MAC from the second UP device to the first UP device.

Illustratively, for the way of migrating the user virtual MAC to the first UP device by the CP device, the following may be performed:

the first implementation mode comprises the following steps: and migrating the user virtual MAC to the first UP device and migrating the routing address corresponding to the second UP device to the first UP device by the CP device based on the routing address corresponding to the second UP device, wherein the routing address corresponding to the second UP device corresponds to the user virtual MAC. That is, it may be understood that the routing address corresponding to the second UP device may wholly correspond to one user virtual MAC, so that when the CP device performs user terminal migration, the user virtual MAC may be migrated to the first UP device based on the routing address corresponding to the second UP device, and the user virtual MAC and the routing address corresponding to the second UP device are also migrated to the first UP device, and specifically, the user virtual MAC points to the tunnel of the first UP device. The described tunnel may include, but is not limited to, SRV6, virtual extensible local area network (VxLAN), and the like, in particular, without limitation.

When a plurality of first user terminals are connected to the second UP device, the plurality of first user terminals in the second UP device can be migrated to different first UP devices in a distributed manner, so as to reduce the load of one first UP device. Therefore, in the second implementation manner, the CP device may further segment the routing address corresponding to the second UP device to obtain at least one segment of routing address, where each segment of routing address corresponds to one user virtual MAC respectively; then, the CP device migrates the corresponding user virtual MAC to the corresponding first UP device based on each segment of the routing address. Likewise, the CP device also needs to migrate to the first UP device along with the routing address corresponding to the second UP device.

It is to be understood that, in addition to the above two manners, the above CP device migration manner may also be another migration manner in practical applications, and is not specifically described in the embodiment of the present application.

608. And the CP equipment sends a first message to the AGW equipment, wherein the first message comprises the user virtual MAC.

609. And the AGW device migrates the forwarding flow of the first user terminal corresponding to the user virtual MAC to the first UP device.

In the embodiment, after the CP device migrates the first user terminal in the second UP device to the first UP device in a manner of migrating the user virtual MAC and the routing address, the CP device may send a first message to the AGW device. Then, after receiving the first message, the AGW device parses the user virtual MAC carried in the first message, so that the AGW device can migrate the forwarding traffic of the first user terminal corresponding to the user virtual MAC to the first UP device. Thus, the first user terminal can realize normal traffic forwarding and the like through the first UP device to complete processes of renewal of lease and the like.

It is to be appreciated that the CP device may send the first message to the AGW device through the first UP device.

Optionally, 610, the AGW device monitors a network status of the user terminal.

Optionally 611, when the network status of the ue is in the unconnected state, the AGW device sends a second message to the CP device.

In an embodiment, the AGW device may also actively monitor a network state of the user terminal, and when the network state of the user terminal is in a non-connected state, it indicates that the AGW device fails to perform detection in response to the detection based on the user detection entry, and then the AGW device is required to feed back, to the CP device, relevant conditions such as detection failure and the like, so that the CP device can perform processing such as offline to the user terminal.

Optionally, 612, the CP device performs offline processing on the user terminal based on the second message.

It is understood that, in other embodiments, the CP device may also send a session addition request or a session deletion request to the first UP device, and also send a session addition request or a session deletion request to the AGW device.

In the embodiment of the application, after the AGW device receives the detection request and receives the user detection table entry sent by the CP device, the detection response processing of the user terminal can be directly realized in the AGW device, the detection response of the user terminal is not required to be realized through the UP device, the processes of online, detection, continuous lease and the like of the user terminal can be finished with higher quality, and the condition that the user terminal is disconnected in any migration scene process is avoided; in addition, the AGW device sends the access request to the CP device, so that the CP device can migrate the user terminal in the failure scenario from the overloaded second UP device to the first UP device after determining the first UP device, thereby better completing the traffic forwarding for the user terminal through the first UP device, and further not affecting the front-end AGW device to complete the detection response processing.

The scheme provided by the embodiment of the application is mainly introduced from the perspective of a method. It is understood that, in order to implement the above functions, the AGW device and the CP device include hardware structures and/or software modules for performing the respective functions. Those skilled in the art will readily appreciate that the functions described in connection with the embodiments disclosed herein may be implemented as hardware or a combination of hardware and computer software. Whether a function is performed in hardware or computer software drives hardware depends upon the particular application and design constraints imposed on the solution. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

Described from the perspective of an entity device, the AGW device and the CP device may be specifically implemented by one entity device, may also be implemented by multiple entity devices together, and may also be a logic function unit in one entity device, which is not specifically limited in this embodiment of the present application.

For example, the AGW device and the CP device may be implemented by the network device in fig. 7. Fig. 7 is a schematic hardware structure diagram of a network device according to an embodiment of the present application. The network device comprises at least one processor 701, a memory 702, a transceiver device 703.

The processor 701 may be a general purpose central processing unit CPU, a microprocessor, an application-specific integrated circuit (ASIC), or one or more ICs for controlling the execution of programs in accordance with the teachings of the present application.

The transceiver 703 may be any transceiver or other communication network, such as ethernet, Radio Access Network (RAN), Wireless Local Area Network (WLAN), etc. The transceiver device 603 may be coupled to the processor 701.

The memory 702 may be, but is not limited to, a read-only memory (ROM) or other type of static storage device that may store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that may store information and instructions, an electrically erasable programmable read-only memory (EEPROM), a compact disk read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact disk, laser disk, optical disk, digital versatile disk, blu-ray disk, etc.), magnetic 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. The memory 702 may be separate or may be coupled to the processor 701. The memory 702 may also be integrated with the processor 701.

The memory 702 is used for storing computer-executable instructions for executing the present invention, and is controlled by the processor 701 to execute. The processor 701 is configured to execute computer-executable instructions stored in the memory 702, so as to implement the method for user access processing provided by the above-mentioned method embodiment of the present application.

In a possible implementation manner, the computer execution instruction in the embodiment of the present application may also be referred to as an application program code, which is not specifically limited in the embodiment of the present application.

In particular implementations, processor 701 may include one or more CPUs such as CPU0 and CPU1 of fig. 7 for one embodiment.

From the perspective of functional units, the present application may divide the functional units of the AGW device and the CP device according to the above method embodiments, for example, each functional unit may be divided according to each function, or two or more functions may be integrated into one functional unit. The integrated functional unit can be realized in a form of hardware or a form of software functional unit.

For example, in a case that each functional unit is divided in an integrated manner, fig. 8 shows a schematic structural diagram of an AGW device according to an embodiment of the present application. As shown in fig. 8, an embodiment of an AGW apparatus 80 of the present application may include:

a transceiver module 801, configured to receive a first request sent by a user equipment, where the first request includes a probe request;

a transceiver module 801, configured to receive a user probe entry sent by a control plane CP device;

a processing module 802, configured to perform probe response processing on the probe request according to the user probe entry.

In some embodiments, the transceiver module 801 is further configured to receive a first message sent by the CP device after performing probe response processing on the probe request based on the user probe table entry, where the first message includes a user virtual MAC, and the user virtual MAC is used to identify a first user terminal corresponding to a second user plane UP device;

the processing module 802 is configured to migrate a forwarding traffic of a first user equipment corresponding to the user virtual MAC to a first UP device, where a load condition of the first UP device is better than a load condition of the second UP device.

In other embodiments, the first request further comprises an access request; the transceiver module 801 is further configured to send the access request to a control plane CP device through at least one UP device.

In some embodiments, the processing module 802 is further configured to monitor a network status of the user terminal; the transceiving module 801 is configured to send a second message to the CP device when the network state of the user terminal is in a non-connected state, where the second message is used to instruct the CP device to perform offline processing on the user terminal.

The AGW device 80 is described above primarily from a functional module perspective, and the CP device will be described below from a functional module perspective. Please refer to fig. 9, which is a schematic structural diagram of a CP device according to an embodiment of the present application. As shown in fig. 9, an embodiment of the CP device 90 of the present application may include:

a generating unit 901, configured to generate a user detection entry;

a sending unit 902, configured to send a user detection entry to an access gateway AGW device, where the user detection entry is used to instruct the AGW device to perform detection response processing on a detection request sent by a user terminal.

In some embodiments, on the basis of the CP device described in fig. 9 above, fig. 10 further illustrates a schematic structural diagram of another CP device provided in an embodiment of the present application. As shown in fig. 10, the CP device 90 may include a generating unit 901, a transmitting unit 902, and a first processing unit 903; wherein:

the first processing unit 903 is configured to determine a first user plane UP device after sending the user detection entry to an access gateway AGW device, where the first UP device is one or more of at least one UP device;

the sending unit 902 is configured to send a user forwarding entry to the first UP device, where the user forwarding entry includes a user virtual MAC, where the user virtual media storage control MAC is configured to identify a first user terminal corresponding to a second UP device, a load condition of the first UP device is better than a load condition of the second UP device, the second UP device is any one of the at least one UP device, and the first user terminal is one or more of the user terminals;

the first processing unit 903, configured to migrate the user virtual MAC to the first UP device;

the sending unit 902 is configured to send a first message to the AGW device, where the first message includes the user virtual MAC, and the first message is used to instruct the AGW device to migrate a forwarding traffic of a first user terminal corresponding to the user virtual MAC to the first UP device.

In other embodiments, the CP device 90 further comprises: a first receiving unit, configured to receive, before generating the user probing entry, an access request transmitted by the AGW device through the at least one UP device.

In other embodiments, the first processing unit 903 is configured to migrate the user virtual MAC to the first UP device according to a routing address corresponding to the second UP device, and migrate a routing address corresponding to the second UP device to the first UP device, where the routing address corresponding to the second UP device corresponds to the user virtual MAC.

In other embodiments, the first processing unit 903 is configured to:

segmenting the routing address corresponding to the second UP device to obtain at least one segment of routing address, wherein each segment of routing address corresponds to one user virtual MAC respectively;

the corresponding user virtual MAC is migrated to the corresponding first UP device based on each segment of the routing address.

In other embodiments, the CP device 90 further comprises: a second receiving unit;

a second receiving unit, configured to, before determining the first UP device, obtain authorized service level agreement SLA type information, where the authorized SLA type information is used to reflect a load condition of at least one UP device;

a first processing unit 903 for determining a first UP device based on a preconfigured policy and authorized SLA type information.

In other embodiments, the CP device 90 further comprises: a third receiving unit;

a third receiving unit, configured to receive a second message sent by the AGW device;

and the second processing unit is used for performing offline processing on the user terminal according to the second message.

The AGW device 80 and the CP device 90 provided in the embodiment of the present application are used to execute the method in the corresponding method embodiment in fig. 5 or fig. 6, so that the embodiment of the present application can be understood by referring to the relevant parts in the corresponding method embodiment in fig. 5 or fig. 6.

In the embodiment of the present application, the AGW device 80 and the CP device 90 are represented in a form of dividing each functional unit in an integrated manner. "functional unit" herein may refer to an application-specific integrated circuit (ASIC), a processor and memory that execute one or more software or firmware programs, an integrated logic circuit, and/or other devices that may provide the described functionality. In a simple embodiment, those skilled in the art will recognize that the AGW device 80 and the CP device 90 may take the form shown in fig. 7.

For example, the processor 701 in fig. 7 may cause the AGW device 80 and the CP device 90 to execute the methods executed by the AGW device and the CP device respectively in the method embodiments corresponding to fig. 5 or fig. 6 by calling a computer stored in the memory 702 to execute the instructions.

In particular, the functions/implementation of the processing module 802 in fig. 8 may be implemented by the processor 701 in fig. 7 invoking computer-executable instructions stored in the memory 702. The functions/implementation procedures of the transceiving module 801 in fig. 8 may be implemented by the transceiving apparatus 703 in fig. 7.

Specifically, the functions/implementation processes of the generating unit 901 in fig. 9, and the first processing unit 903 and the second processing unit in fig. 10 may be implemented by the processor 701 in fig. 7 invoking a computer executing instruction stored in the memory 702. The functions/implementation procedures of the transmitting unit 901, the first receiving unit, the second receiving unit, and the third receiving unit in fig. 9 and 10 may be implemented by the transceiving equipment 703 in fig. 7.

In the device of fig. 7, the respective components are communicatively connected, i.e., the processing unit (or processor), the storage unit (or memory) and the transceiving unit (transceiver) communicate with each other via internal connection paths, and control and/or data signals are transmitted. The above method embodiments of the present application may be applied to a processor, or the processor may implement the steps of the above method embodiments. The processor may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method embodiments may be performed by integrated logic circuits of hardware in a processor or instructions in the form of software. The processor may be a Central Processing Unit (CPU), a Network Processor (NP), or a combination of a CPU and an NP, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA), or other programmable logic device, discrete gate or transistor logic device, or discrete hardware component. The various methods, steps, and logic blocks disclosed in this application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in this application may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software modules in the decoding processor. The software module may be located in ram, flash memory, rom, prom, or eprom, registers, etc. storage media as is well known in the art. The storage medium is located in a memory, and a processor reads information in the memory and completes the steps of the method in combination with hardware of the processor. Although only one processor is shown in the figure, the apparatus may comprise a plurality of processors or a processor may comprise a plurality of processing units. Specifically, the processor may be a single-core (single-CPU) processor or a multi-core (multi-CPU) processor.

The memory is used for storing computer instructions executed by the processor. The memory may be a memory circuit or a memory. The memory may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a read-only memory, a programmable read-only memory, an erasable programmable read-only memory, an electrically erasable programmable read-only memory, or a flash memory. Volatile memory may be random access memory, which acts as external cache memory. The memory may be independent of the processor, or may be a storage unit in the processor, which is not limited herein. Although only one memory is shown in the figure, the apparatus may comprise a plurality of memories or the memory may comprise a plurality of memory units.

The transceiver is used for enabling the processor to interact with the content of other units or network elements. Specifically, the transceiver may be a communication interface of the apparatus, a transceiving circuit or a communication unit, and may also be a transceiver. The transceiver may also be a communication interface or transceiving circuitry of the processor. Alternatively, the transceiver may be a transceiver chip. The transceiver may also include a transmitting unit and/or a receiving unit. In one possible implementation, the transceiver may include at least one communication interface. In another possible implementation, the transceiver may also be a unit implemented in software. In embodiments of the application, the processor may interact with other elements or network elements via the transceiver. For example: the processor obtains or receives content from other network elements through the transceiver. If the processor and the transceiver are physically separate components, the processor may interact with other elements of the apparatus without going through the transceiver.

In one possible implementation, the processor, the memory, and the transceiver may be connected to each other by a bus. The bus may be a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, or the like. The bus may be divided into an address bus, a data bus, a control bus, etc.

In the embodiments of the present application, words such as "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "exemplary" or "e.g.," is not necessarily to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the word "exemplary" or "such as" is intended to present concepts related in a concrete fashion.

In the embodiments of the present application, various illustrations are made for the convenience of understanding. However, these examples are merely examples and are not meant to be the best mode of carrying out the present application.

The above-described embodiments may be implemented in whole or in part by software, hardware, firmware, or any combination thereof, and when implemented using software, 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. The processes or functions according to the embodiments of the present application are generated in whole or in part when the computer-executable instructions are loaded and executed on a computer. The computer may be a general purpose computer, a special purpose computer, a network of computers, or other programmable device. The computer instructions may be stored in a computer readable storage medium or transmitted from one computer readable storage medium to another, e.g., the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. A computer-readable storage medium may be any available medium that a computer can store or a data storage device, such as a server, a data center, etc., that is integrated with one or more available media. The usable medium may be a magnetic medium (e.g., floppy Disk, hard Disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., Solid State Disk (SSD)), among others.

The technical solutions provided by the present application are introduced in detail, and the present application applies specific examples to explain the principles and embodiments of the present application, and the descriptions of the above examples are only used to help understand the method and the core ideas of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A method for user access processing, comprising:

an access gateway AGW device receives a first request sent by a user terminal, wherein the first request comprises a detection request;

the AGW equipment receives a user detection table item sent by control plane CP equipment;

and the AGW equipment performs detection response processing on the detection request based on the user detection table entry.

2. The method of claim 1, wherein after the AGW device performs probe response processing on the probe request based on the user probe entry, the method further comprises:

the AGW device receives a first message sent by the CP device, wherein the first message comprises a user virtual media storage control MAC, the user virtual MAC is used for identifying a first user terminal corresponding to a second UP device, and the first user terminal is one or more of the user terminals;

the AGW device migrates the forwarding traffic of the first user terminal corresponding to the user virtual MAC to a first UP device, and the load condition of the first UP device is better than the load condition of the second UP device.

3. The method of claim 1 or 2, wherein the first request further comprises an access request, the method further comprising:

and the AGW equipment sends the access request to the CP equipment through at least one user plane UP equipment.

4. The method according to any one of claims 1-3, further comprising:

the AGW equipment monitors the network state of the user terminal;

and when the network state of the user terminal is in a non-connected state, the AGW equipment sends a second message to the CP equipment, wherein the second message is used for indicating the CP equipment to carry out offline processing on the user terminal.

5. A method for user access processing, comprising:

the control plane CP equipment generates a user detection table item;

and the control plane CP equipment sends the user detection table entry to access gateway AGW equipment, wherein the user detection table entry is used for indicating the AGW equipment to perform detection response processing on a detection request sent by a user terminal.

6. The method of claim 5, wherein after the control plane CP device sends the user probing entry to an Access Gateway (AGW) device, the method further comprises:

the CP device determines a first User Plane (UP) device, wherein the first UP device is one or more of at least one UP device;

the CP device sends a user forwarding entry to the first UP device, where the user forwarding entry includes a user virtual media storage control MAC, the user virtual MAC is used to identify a first user terminal corresponding to a second UP device, a load condition of the first UP device is better than a load condition of the second UP device, the second UP device is any one of the at least one UP device, and the first user terminal is one or more of the user terminals;

migrating the user virtual MAC to the first UP device by the CP device;

the CP device sends a first message to the AGW device through the first UP device, where the first message includes the user virtual MAC, and the first message is used to instruct the AGW device to migrate a forwarding traffic of a first user terminal corresponding to the user virtual MAC to the first UP device.

7. The method of claim 5 or 6, wherein before the control plane CP device generates the user probing entry, the method further comprises:

and the CP equipment receives the access request transmitted by the AGW equipment through the at least one UP equipment.

8. The method of claim 6, wherein migrating the user virtual MAC to the first UP device by the CP device comprises:

the CP device migrates the user virtual MAC to the first UP device and migrates a routing address corresponding to the second UP device to the first UP device based on the routing address corresponding to the second UP device, where the routing address corresponding to the second UP device corresponds to the user virtual MAC.

9. The method of claim 8 wherein migrating the user virtual MAC to the first UP device by the CP device based on a routing address corresponding to the second UP device comprises:

the CP device segments the routing address corresponding to the second UP device to obtain at least one segment of routing address, wherein each segment of routing address corresponds to a user virtual MAC respectively;

the CP device migrates the corresponding user virtual MAC to the corresponding first UP device based on each segment of the routing address.

10. The method of any of claims 6-9, wherein prior to the CP device determining the first UP device, the method further comprises:

the CP equipment acquires the information of authorized service level agreement SLA type, and the information of authorized SLA type is used for reflecting the load condition of the at least one UP equipment;

correspondingly, the CP device determining a first UP device, including:

the CP device determines a first UP device based on a pre-configured policy and the authorized SLA type information.

11. The method according to any one of claims 5-10, further comprising:

the CP equipment receives a second message sent by the AGW equipment;

and the CP equipment carries out offline processing on the user terminal based on the second message.

12. An AGW apparatus, comprising:

the system comprises a receiving and sending module, a sending and receiving module and a sending and receiving module, wherein the receiving and sending module is used for receiving a first request sent by a user terminal, and the first request comprises a detection request;

the receiving and sending module is used for receiving a user detection table item sent by the control plane CP equipment;

and the processing module is used for carrying out detection response processing on the detection request according to the user detection table entry.

13. The AGW apparatus according to claim 12,

the transceiver module is further configured to receive a first message sent by the CP device after performing probe response processing on the probe request based on the user probe entry, where the first message includes a user virtual media storage control MAC, and the user virtual MAC is used to identify a first user terminal corresponding to a second user plane UP device;

14. The AGW device of claim 12 or 13, the first request further comprising an access request;

the transceiver module is further configured to send the access request to a control plane CP device through at least one UP device.

15. The AGW apparatus according to any one of the claims 12-14,

the processing module is further configured to monitor a network state of the user terminal;

the transceiver module is configured to send a second message to the CP device when the network state of the user terminal is in a non-connected state, where the second message is used to instruct the CP device to perform offline processing on the user terminal.

16. A CP device, comprising:

the generating unit is used for generating a user detection table item;

a sending unit, configured to send a user detection entry to an access gateway AGW device, where the user detection entry is used to instruct the AGW device to perform detection response processing on a detection request sent by a user terminal.

17. The CP apparatus of claim 16, wherein the CP apparatus further comprises: a first processing unit;

the first processing unit is configured to determine a first user plane UP device after sending the user detection entry to an access gateway AGW device, where the first UP device is one or more of at least one UP device;

the sending unit is configured to send a user forwarding entry to the first UP device, where the user forwarding entry includes a user virtual media storage control MAC, the user virtual MAC is used to identify a first user terminal corresponding to a second UP device, a load condition of the first UP device is better than a load condition of the second UP device, the second UP device is any one of the at least one UP device, and the first user terminal is one or more of the user terminals;

the first processing unit is configured to migrate the user virtual MAC to the first UP device;

the sending unit is configured to send a first message to the AGW device, where the first message includes the user virtual MAC, and the first message is used to instruct the AGW device to migrate a forwarding traffic of a first user terminal corresponding to the user virtual MAC to the first UP device.

18. The CP apparatus according to claim 16 or 17, wherein the CP apparatus further comprises:

a first receiving unit, configured to receive, before generating a user detection entry, an access request transmitted by the AGW device through the at least one UP device.

19. The CP device of claim 17,

the first processing unit is configured to migrate the user virtual MAC to the first UP device according to a routing address corresponding to the second UP device, and migrate a routing address corresponding to the second UP device to the first UP device, where a routing address corresponding to the second UP device corresponds to the user virtual MAC.

20. The CP apparatus of claim 19, wherein the first processing unit is configured to:

21. The CP device of any of claims 17-20, wherein the CP device further comprises:

a second receiving unit, configured to, before determining the first UP device, obtain authorized service level agreement SLA type information, where the authorized SLA type information is used to reflect a load condition of the at least one UP device;

the first processing unit is configured to determine a first UP device based on a preconfigured policy and the authorized SLA type information.

22. The CP device of any of claims 16-21, wherein the CP device further comprises:

23. A network device, comprising:

a processor, a memory; the processor and the memory are communicated with each other;

the memory is used for storing a computer program;

the processor is configured to execute the computer program in the memory to perform the method of any of claims 1-4, or 5-11.

24. A computer-readable storage medium storing one or more computer-executable instructions, wherein when the computer-executable instructions are executed by a processor, the processor performs the method of any one of claims 1-4, or 5-11.