WO2023284367A1 - Dbng-up的备份方法及装置 - Google Patents
Dbng-up的备份方法及装置 Download PDFInfo
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- WO2023284367A1 WO2023284367A1 PCT/CN2022/089970 CN2022089970W WO2023284367A1 WO 2023284367 A1 WO2023284367 A1 WO 2023284367A1 CN 2022089970 W CN2022089970 W CN 2022089970W WO 2023284367 A1 WO2023284367 A1 WO 2023284367A1
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/06—Management of faults, events, alarms or notifications
- H04L41/0654—Management of faults, events, alarms or notifications using network fault recovery
- H04L41/0663—Performing the actions predefined by failover planning, e.g. switching to standby network elements
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0803—Configuration setting
- H04L41/0823—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability
- H04L41/0836—Configuration setting characterised by the purposes of a change of settings, e.g. optimising configuration for enhancing reliability to enhance reliability, e.g. reduce downtime
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/32—Specific management aspects for broadband networks
Definitions
- Embodiments of the present invention relate to the communication field, and in particular, relate to a backup method and device for a Disaggregated Broadband Network Gateway-User Plane (DBNG-UP) network function.
- DBNG-UP Disaggregated Broadband Network Gateway-User Plane
- the traditional MAN service gateway that is, Broadband Access Server (BRAS) equipment mainly implements the access control and management functions of fixed-line broadband users.
- BRAS Broadband Access Server
- the vBRAS virtual Broadband Access Server
- the vBRAS with separation of transfer and control realizes centralized management and traffic forwarding of fixed broadband users, improving equipment resource utilization; at the same time, it realizes redundant backup through forwarding plane pooling and control plane cloudification, improving network reliability. Realized by technologies such as load sharing and active/standby backup, the flexibility of business deployment and the reliability of business operation can be improved.
- DBNG-UP In order to achieve the operational reliability of DBNG-UP, multiple DBNG-UPs under the management of the same DBNG-CP can be placed in the same pool through DBNG-UP pooling technology, and other DBNG-UPs can be used as any DBNG-UP UP's backup.
- DBNG-UP dual-machine hot backup including 1:1 backup and N:1 backup
- the backup of the main DBNG-UP can be switched to realize backup of the main DBNG-UP.
- UP's backup UP's backup.
- DBNG-UP For example, take a DBNG-UP protection example of N:1.
- Configure N UPs (DBNG-UP1, DBNG-UP2, ..., DBNG-UPn) on the DBNG-CP as the same backup group instance.
- the backup group instance information here may include: members of the backup group, priorities of the members of the backup group, switching strategies, and the like.
- Possible failure locations of DBNG-UP include: link communication between UP-AN, link failure between CP-UP, and node failure of DBNG-UP.
- N+1 UPs (DBNG-UP1, DBNG-UP2, ..., DBNG-UPn, DBNG-UP(n+1)) in the same backup group instance on DBNG-UP, and back up (UP Redundancy) algorithm selects DBNG-UP1 to DBNG-UPn as active UP, and DBNG-UP(n+1) as standby UP (Standby).
- BBF WT-459 specifies that the DBNG control plane interface protocol adopts the Packet Forwarding Control Protocol (Packet Forwarding Control Protocol, PFCP) implementation, but for the important scenario of DBNG-UP protection, the WT-459 project does not yet have a standard specification for protocol support.
- Packet Forwarding Control Protocol Packet Forwarding Control Protocol, PFCP
- Embodiments of the present invention provide a DBNG-UP backup method and device, so as to at least solve the problem of UP backup capability negotiation between DBNG-CP and DBNG-UP in the prior art.
- a DBNG-UP backup method including: configuring a backup group instance on the DBNG-CP, wherein, the backup group members managed by the DBNG-CP include at least the first DBNG-UP and the second DBNG-UP; the DBNG-CP performs UP backup capability negotiation with the first DBNG-UP and the second DBNG-UP respectively, so as to complete the master-backup election between the first DBNG-UP and the second DBNG-UP .
- configuring a backup group instance on the DBNG-CP includes: configuring a backup group instance on the DBNG-CP, specifying the backup group members as the first DBNG-UP and the second DBNG-UP; Deploy backup instances on the first DBNG-UP and the second DBNG-UP respectively, add the interface connecting the first DBNG-UP and the second DBNG-UP to the user access side, and enable the first DBNG-UP UP and the backup capability of the second DBNG-UP.
- the DBNG-CP performs UP backup capability negotiation with the first DBNG-UP and the second DBNG-UP respectively, so as to complete the master-backup between the first DBNG-UP and the second DBNG-UP Election, including: DBNG-CP conducts backup capability negotiation with the first DBNG-UP and the second DBNG-UP respectively through the control plane interface protocol, and specifies the master and backup for the first DBNG-UP and the second DBNG-UP, wherein, The first DBNG-UP is the active DBNG-UP, and the second DBNG-UP is the standby DBNG-UP.
- the UP backup capability negotiation between the DBNG-CP and the first DBNG-UP and the second DBNG-UP is supported by extending the information elements of the PFCP negotiation message , and support the DBNG-CP's master-backup designation for the first DBNG-UP and the second DBNG-UP.
- extending the information element of the PFCP negotiation message includes: adding an UP backup group identification information element in the PFCP negotiation message.
- the master/standby election between the first DBNG-UP and the second DBNG-UP after the master/standby election between the first DBNG-UP and the second DBNG-UP is completed, it further includes: when a user plane interface failure occurs on the first DBNG-UP, the The DBNG-CP receives the fault information reported by the first DBNG-UP, triggers the protection switching of the members of the backup group, and notifies the status information of the members of the backup group.
- a PFCP node reporting mechanism is used to report the failure information of the first DBNG-UP and notify the status information of the backup group members.
- the fault information of the first DBNG-UP is reported through a PFCP node report request message, and the status information of the backup group members is notified through a PFCP node report response message.
- the information element of the PFCP node report request message is extended to carry the failure information of the first DBNG-UP, and the information element of the PFCP node report response message is extended to carry the Status information of backup group members.
- extending the information element of the PFCP node report request message to carry the fault information of the first DBNG-UP includes: carrying the first DBNG through an extended user plane interface fault information element -UP fault information.
- extending the information element of the response message reported by the PFCP node to carry the status information of the backup group member includes: carrying the backup group member through a newly added user plane backup group member status information element status information.
- a DBNG-UP backup device including: a configuration module configured to configure a backup group instance on the DBNG-CP, wherein the backup group members managed by the DBNG-CP are at least Including the first DBNG-UP and the second DBNG-UP; the negotiation module is configured to perform UP backup capability negotiation with the first DBNG-UP and the second DBNG-UP respectively through the DBNG-CP, so as to complete the first DBNG-UP and the master/standby election between the second DBNG-UP.
- the device may further include: a mapping module configured to establish, on the DBNG-CP, a mapping from the protection interfaces of the first DBNG-UP and the second DBNG-UP to the DBNG-CP.
- a mapping module configured to establish, on the DBNG-CP, a mapping from the protection interfaces of the first DBNG-UP and the second DBNG-UP to the DBNG-CP.
- a computer-readable storage medium is also provided, and a computer program is stored in the computer-readable storage medium, wherein the computer program is configured to perform any one of the above methods when running Steps in the examples.
- an electronic device including a memory and a processor, wherein a computer program is stored in the memory, and the processor is configured to run the computer program to perform any of the above Steps in the method examples.
- the DBNG-CP and its managed DBNG-UP carry out UP backup capability negotiation to complete the DBNG-UP master and backup election, thereby solving the problem of UP backup capability negotiation and increasing the DBNG-UP backup protection. flexibility.
- Fig. 1 is the block diagram of the hardware structure of the computer terminal of the backup method of running DBNG-UP according to the embodiment of the present invention
- Fig. 2 is the flowchart of the DBNG-UP backup method according to the embodiment of the present invention.
- Fig. 3 is the structural block diagram of the backup device of DBNG-UP according to the embodiment of the present invention.
- Fig. 4 is a schematic diagram of a DBNG-UP backup processing mechanism according to an embodiment of the present invention.
- Fig. 5 is a schematic diagram of user plane interface failure points according to an embodiment of the present invention.
- FIG. 1 is a block diagram of the hardware structure of the computer terminal running the DBNG-CP backup method according to an embodiment of the present invention.
- the computer terminal may include one or more (only one is shown in Figure 1) processors 102 (processors 102 may include but not limited to processing devices such as microprocessor MCU or programmable logic device FPGA, etc.) and a memory 104 for storing data, wherein the above-mentioned computer terminal may also include a transmission device 106 and an input and output device 108 for communication functions.
- FIG. 1 is only for illustration, and it does not limit the structure of the above computer terminal.
- the computer terminal may also include more or fewer components than shown in FIG. 1 , or have a different configuration than that shown in FIG. 1 .
- Memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the backup method of the separated broadband network gateway control plane network function DBNG-CP in the embodiment of the present invention, processor 102 by running
- the computer program stored in the memory 104 executes various functional applications and data processing, that is, implements the above-mentioned methods.
- the memory 104 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory.
- the memory 104 may further include a memory that is remotely located relative to the processor 102, and these remote memories may be connected to a computer terminal through a network. Examples of the aforementioned networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.
- the transmission device 106 is used to receive or transmit data via a network.
- the specific example of the above-mentioned network may include a wireless network provided by the communication provider of the computer terminal.
- the transmission device 106 includes a Network Interface Controller (NIC for short), which can be connected to other network devices through a base station so as to communicate with the Internet.
- the transmission device 106 may be a radio frequency (Radio Frequency, referred to as RF) module, which is used to communicate with the Internet in a wireless manner.
- RF Radio Frequency
- a DBNG-UP backup method is provided.
- Fig. 2 is the flowchart of a kind of DBNG-UP backup method according to the embodiment of the present invention, as shown in Fig. 2, this method comprises the steps:
- Step S202 configuring a backup group instance on the DBNG-CP, wherein the backup group members managed by the DBNG-CP include at least a first DBNG-UP and a second DBNG-UP;
- Step S204 the DBNG-CP performs UP backup capability negotiation with the first DBNG-UP and the second DBNG-UP respectively, so as to complete the master/backup election between the first DBNG-UP and the second DBNG-UP.
- the UP Redundancy capability negotiation is performed on the DBNG-CP and the DBNG-UP, which is used for the primary and backup election of the UP Redundancy instance.
- a backup group instance is configured on the DBNG-CP, a first DBNG-UP and a second DBNG-UP are designated as members of the backup group, and the redundancy (Redundancy) capability is enabled.
- a backup instance can be deployed on the corresponding DBNG-UP, and an interface connecting the UP to the user access side can be added to enable the Redundancy capability.
- step S204 of this embodiment the redundancy capability negotiation between the DBNG-CP and the DBNG-UP may be performed through the control plane interface protocol. And complete the designation of DBNG-CP as master and backup for DBNG-UP.
- step S204 of this embodiment the UP Redundancy capability can be extended and supported through the control plane interface protocol between DBNG-CP and DBNG-UP.
- the active/standby designation of DBNG-CP to DBNG-UP needs to be extended and supported through the control plane interface protocol between DBNG-CP and DBNG-UP.
- step S204 of this embodiment it may also include: when the main DBNG-UP has a user plane interface failure, the DBNG-UP notifies the failure information and reports it to the DBNG-CP, and the DBNG-CP performs protection switching according to the pre-configured UP Redundancy algorithm mechanism . And notify the new active (active) DBNG-UP to switch to the main UP.
- the user plane interface failure may include a physical interface failure or a logical interface failure
- the active/standby designation for DBNG-UP needs to be supported through the control plane interface protocol extension between DBNG-CP and DBNG-UP.
- DBNG-UP needs to notify its access-side and network-side nodes, and set the new active DBNG-UP as the next hop of the route, so as to realize the correct direction of user traffic.
- the UP Redundancy capability negotiation can be realized based on the PFCP protocol.
- a PFCP negotiation message PFCP Association message
- PFCP Association message can be used to realize the UP Redundancy capability notification between the DBNG-CP and the DBNG-UP.
- the PFCP Node Report (PFCP Node Report) implementation mechanism can be used to complete the UP fault detection and protection group switching process.
- the PFCP Node Report Request and PFCP Node Report Response mechanisms are used to carry DBNG-UP fault detection information and protection group switching notifications.
- the information element (IE) of the PFCP Node Report Request message can be extended, mainly for the DBNG-UP failure point report request.
- the IE may be a newly added Fixed Redundancy (Fixed Redundancy) IE, or an extension of an existing IE.
- the IE extension of the PFCP Node Report Response message can be used to notify the active and standby states of the new active DBNG-UP.
- the IE can be a new Fixed Redundancy IE, or an extension of an existing IE.
- the above-mentioned embodiments of the present invention provide the content that needs to be included in the PFCP capability negotiation information communicated between DBNG-CP and DBNG-UP when using the PFCP protocol for backup capability negotiation, And the extension requirements of the protocol, as well as the PFCP protocol extension and processing flow of DBNG-CP and DBNG-UP, and the possible IE extension requirements brought by PFCP.
- this embodiment is not limited to the PFCP protocol, and no matter what protocol the control interface adopts, the given IE type and TLV encapsulation information are common.
- a DBNG-UP backup device is also provided, which is used to implement the above embodiments and preferred implementation modes, and what has already been described will not be repeated.
- the term "module” may be a combination of software and/or hardware that realizes a predetermined function.
- the devices described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.
- FIG. 3 is a structural block diagram of a DBNG-UP backup device 100 according to an embodiment of the present invention. As shown in FIG. 3 , the device includes a configuration module 10 and a negotiation module 20 .
- the configuration module 10 is configured to configure a backup group instance on the DBNG-CP, wherein the backup group members managed by the DBNG-CP include at least a first DBNG-UP and a second DBNG-UP;
- the negotiation module 20 is configured to perform UP backup capability negotiation with the first DBNG-UP and the second DBNG-UP respectively through the DBNG-CP, so as to complete the master-backup election between the first DBNG-UP and the second DBNG-UP .
- the backup device of DBNG-UP may also include a mapping module besides the above-mentioned configuration module and negotiation module, and the mapping module is used to establish the first DBNG-UP and the second DBNG-UP on the DBNG-CP 2. Mapping from the protection interface of DBNG-UP to DBNG-CP.
- the above-mentioned modules can be realized by software or hardware. For the latter, it can be realized by the following methods, but not limited to this: the above-mentioned modules are all located in the same processor; or, the above-mentioned modules can be combined in any combination The forms of are located in different processors.
- the control interface between the DBNG-CP and the DBNG-UP is described using the PFCP protocol as an example. But the present invention is not limited to the PFCP protocol, no matter which protocol the control interface adopts, the given information of the information element (Information Element, IE) type and TLV (Type Length Value) encapsulation can be general.
- Information Element Information Element
- TLV Type Length Value
- a UP backup (Redundancy) processing mechanism is provided.
- Fig. 4 is a schematic diagram of the UP backup processing mechanism of the embodiment of the present invention.
- the control plane interface between DBNG-CP and DBNG-UP adopts the PFCP protocol.
- the PFCP Node Report mechanism is used to realize the active and standby state notification of the UP Redundancy Group, and the UP Redundancy is realized through the PFCP Node Report. Fault information reporting and DBNG-CP status notification after UP Redundancy backup group switching according to the received fault information.
- the processing mechanism includes the following steps:
- step S401 DBNG-UP1 and DBNG-CP complete PFCP Redundancy capability negotiation, which are carried by PFCP Association Request and PFCP Association Response messages.
- Step S402 DBNG-UP2 completes PFCP Redundancy capability negotiation with DBNG-CP, and uses PFCP Association Request and PFCP Association Response messages to carry.
- step S403 the main UP member DBNG-UP1 notifies the status information (such as port resource information, etc.) of the protection group members to DBNG-CP through a PFCP node report request (PFCP Node Report Request).
- PFCP Node Report Request PFCP Node Report Request
- Step S404 DBNG-CP replies with PFCP Node Report Response (PFCP Node Report Response) information, and notifies the status information (such as active) of the protection group members to DBNG-UP1.
- PFCP Node Report Response PFCP Node Report Response
- Step S405 the standby UP member DBNG-UP2 notifies the status information (such as port resource information, etc.) of the protection group members to DBNG-CP through the PFCP Node Report Request.
- step S406 the DBNG-CP replies with a PFCP Node Report Response message, and notifies the status information (such as standby) of the protection group members to DBNG-UP2.
- Step S407 when the main UP member DBNG-UP1 has a port (Port) or UP1 instance failure, report the failure status information to DBNG-CP through PFCP Node Report Request information.
- Step S408 DBNG-CP triggers protection switching according to the received fault information, and notifies DBNG-UP2 that the state of protection group members is switched to active by replying a PFCP Node Report Response message, and at the same time, notifies DBNG-UP2 that the state of protection group members is switched to active UP member.
- the PFCP Node Report includes two message types: PFCP Node Report Request and PFCP Node Report Response.
- the PFCP Node Report Request contains an alternative SMF IP address (Alternative SMF IP Address) IE, which is used to specify the SMF backup address.
- the SMF of the 3GPP core network is the control plane network function of UPF, and the UPF is the user plane network function.
- DBNG-CP is the DBNG control plane network function
- DBNG-UP is the DBNG user plane network function.
- 3GPP TS29.244 does not support the backup protection of the user plane network function UPF.
- this patent needs to extend the PFCP protocol to support the UP Redundancy function.
- This embodiment proposes to increase the UP backup group identification (UP Redundancy Group ID) IE, and its corresponding IE type is the UP Redundancy Group ID type, as shown in Table 1:
- the IE is used to deliver the configuration information of the UP Redundancy protection group, and its encapsulation format is as follows:
- the 1-2 bytes are used for IE type information encapsulation, and the IE type information is UP Redundancy Group ID IE.
- the 3-4 bytes are used for IE field length information encapsulation.
- the fifth byte is used for UP backup group identification (UP redundancy Group ID) information encapsulation, representing the name (name) or identifier (identifier) of the group (Group) and other information.
- the 6th and 7th bytes are used for UP backup group member (UP Redundancy Group Member) information encapsulation, including the name (name) or identification (ID) of the user-side physical interface of the CP, or the name or identification of the virtual interface, etc.
- the group members of the UP Redundancy Group are the node identifier (node-id) and the node name (node-name) of the UP, etc., which are based on the granularity of the UP.
- the 8th-9th bytes are used for UP backup group type (UP Redundancy Group Type) information encapsulation, used to indicate whether it is hot backup, cold backup or warm backup, etc.
- UP backup group type UP Redundancy Group Type
- the 10th-11th bytes are used for UP backup group policy (UP Redundancy Group Policy) information encapsulation, and are used to describe the CP switching strategy, such as priority and switching strategy.
- UP backup group policy UP Redundancy Group Policy
- This embodiment relates to the protection port mapping process of the UP Redundancy backup group of DBNG-CP and member DBNG-UP, in this embodiment, configure N+1 UP (DBNG-UP1, DBNG-UP2...DBNG on DBNG-UP) -UPn, DBNG-UP(n+1)) in the same backup group instance.
- Fig. 5 is a schematic diagram of fault points, which identify fault points 1, 2, and 3. The Redundancy backup protection of DBNG-UP actually switches on DBNG-CP, but the fault detection point (as shown in Figure 5) is on the interface between DBNG-UP and the user side.
- this embodiment may include the following steps:
- Step 1 Configure UP Redundancy Group on DBNG-CP, specify group ID information, add group members to point to DBNG-UP managed by it, configure its priority, etc.
- Step 2 Configure a protection group on DBNG-UP, and add its user-side interface to this protection group.
- Step 3 DBNG-UP needs to report the interface protection group configuration of UP to DBNG-CP through the control plane interface protocol between DBNG-CP and DBNG-UP.
- Step 4 Establish a mapping relationship between the UP Redundancy Group and its corresponding DBNG-UP interface (port) on the DBNG-CP.
- Step 5 When the master DBNG-UP detects a fault, report the UP user side interface fault information to the DBNG-CP through the control plane interface protocol between the DBNG-CP and the DBNG-UP.
- Step 6 DBNG-CP triggers the switching of UP Redundancy Group, and notifies the new DBNG-UP to be the main UP (active).
- DBNG-UP1 needs to add DBNG-UP1 to the UP Redundancy backup group information configured by DBNG-CP and send it to DBNG-CP1 through PFCP Node Report Request.
- This information can be uploaded to DBNG-CP by carrying the backup group instance information configured on DBNG-UP, and UP Redundancy Group (configured UP members on CP) and UP backup group instance members (configured Port members on UP) are realized on DBNG-CP.
- UP Redundancy Group configured UP members on CP
- UP backup group instance members configured Port members on UP
- mapping relationship between port—>UP node-id——>UP Redundancy Group ID is formed on the DBNG-CP to extend the PFCP implementation.
- This embodiment involves carrying UP fault information by extending the PFCP Node Report Request.
- the 3GPP PFCP protocol has a user plane failure (User Plane Path Failure) IE type that provides user network function fault detection, but this IE only has a GTP-U Peer IE type.
- it is a control interface that supports DBNG on the fixed network side protocol, it is necessary to expand the reachability detection of the new fixed network access side routing protocol. Such as: increase Ethernet, IP route detection, etc.
- a logical port (Logical Port) IE is used to perform physical port or logical port status and IP reachability detection.
- the Logical Port IE description is shown in Table 3:
- Table 4 shows the user plane failure IE information:
- BBF TR-459 has defined Logical Port IE, this structure can be reused in this embodiment without extension.
- This embodiment involves the issue of enabling the master and backup of the PFCP Node Report Response extension to carry the UP Redundancy backup group.
- DBNG-UP1 reports its user-side port failure information to DBNG-CP, and DBNG-CP triggers UP Redundancy Group switching and notifies DBNG according to the received failure information and the algorithm mechanism of UP Redundancy Group switching -UP2 is active UP.
- table 5 is Node Report Response extended IE information
- Table 6 below shows the UP Redundancy Active IE package.
- the fifth byte encapsulates the active/standby status of the Redundancy Group
- Bit 1–Activate If this bit is set to “1”, it means that the delivered protection group member is active; if it is set to "0", it means that the protection group member is standby.
- the member here is UP Redundancy Group member, which refers to the corresponding UP Node id information.
- Bit 2to 8 is vacant, and the default setting is “0" for future use.
- the active/standby of DBNG-UP is dynamically elected on the DBNG-CP. Therefore, after the active/standby state election is completed, the DBNG-CP It needs to be carried and sent to the corresponding Redundancy member DBNG-UP through PFCP IE information.
- Embodiments of the present invention also provide a computer-readable storage medium, in which a computer program is stored, wherein the computer program is set to execute the steps in any one of the above method embodiments when running.
- the above-mentioned computer-readable storage medium may include but not limited to: U disk, read-only memory (Read-Only Memory, referred to as ROM), random access memory (Random Access Memory, referred to as RAM) , mobile hard disk, magnetic disk or optical disk and other media that can store computer programs.
- ROM read-only memory
- RAM random access memory
- mobile hard disk magnetic disk or optical disk and other media that can store computer programs.
- An embodiment of the present invention also provides an electronic device, including a memory and a processor, where a computer program is stored in the memory, and the processor is configured to run the computer program to perform the steps in any one of the above method embodiments.
- the electronic device may further include a transmission device and an input and output device, wherein the transmission device is connected to the processor, and the input and output device is connected to the processor.
- each module or each step of the above-mentioned present invention can be realized by a general-purpose computing device, and they can be concentrated on a single computing device, or distributed in a network formed by multiple computing devices In fact, they can be implemented in program code executable by a computing device, and thus, they can be stored in a storage device to be executed by a computing device, and in some cases, can be executed in an order different from that shown here. Or described steps, or they are fabricated into individual integrated circuit modules, or multiple modules or steps among them are fabricated into a single integrated circuit module for implementation. As such, the present invention is not limited to any specific combination of hardware and software.
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Claims (15)
- 一种分离的宽带网络网关用户面网络功能DBNG-UP的备份方法,包括:在分离的宽带网络网关控制面网络功能DBNG-CP上配置备份组实例,其中,所述DBNG-CP管理的备份组成员至少包括第一DBNG-UP和第二DBNG-UP;所述DBNG-CP分别与第一DBNG-UP和第二DBNG-UP进行UP备份能力协商,以完成第一DBNG-UP和第二DBNG-UP之间的主备选举。
- 根据权利要求1所述的方法,其中,在DBNG-CP上配置备份组实例包括:在所述DBNG-CP上配置备份组实例,指定备份组成员为所述第一DBNG-UP和第二DBNG-UP;分别在所述第一DBNG-UP和第二DBNG-UP上部署备份实例,加入第一DBNG-UP和第二DBNG-UP与用户接入侧连接的接口,并使能所述第一DBNG-UP和第二DBNG-UP的备份能力。
- 根据权利要求1所述的方法,其中,所述DBNG-CP分别与第一DBNG-UP和第二DBNG-UP进行UP备份能力协商,以完成第一DBNG-UP和第二DBNG-UP之间的主备选举,包括:所述DBNG-CP通过控制面接口协议分别与所述第一DBNG-UP和第二DBNG-UP进行备份能力协商,并对所述第一DBNG-UP和第二DBNG-UP进行主备指定,其中,所述第一DBNG-UP为主DBNG-UP,所述第二DBNG-UP为备DBNG-UP。
- 根据权利要求3所述的方法,其中,通过对报文转发控制协议PFCP协商消息的信元进行扩展,以支持所述DBNG-CP与第一DBNG-UP和第二DBNG-UP之间的UP备份能力协商,以及支持所述DBNG-CP对第一DBNG-UP和第二DBNG-UP的主备指定。
- 根据权利要求4所述的方法,其中,通过对PFCP协商消息的信元进行扩展包括:在所述PFCP协商消息中增加了UP备份组标识信元。
- 根据权利要求3所述的方法,其中,在完成第一DBNG-UP和第二DBNG-UP之间的主备选举之后,还包括:在所述第一DBNG-UP发生用户面接口故障的情况下,所述DBNG-CP接收所述第一DBNG-UP上报的故障信息,触发备份组成员的保护切换,并通告备份组成员的状态信息。
- 根据权利要求6所述的方法,其中,采用PFCP节点上报机制,以进行所述第一DBNG-UP的故障信息的上报,以及备份组成员的状态信息的通告。
- 根据权利要求7所述的方法,其中,通过PFCP节点上报请求消息上报所述第一DBNG-UP的故障信息,以及通过PFCP节点上报响应消息通告所述备份组成员的状态信息。
- 根据权利要求8所述的方法,其中,通过对PFCP节点上报请求消息的信元进行扩展以携带所述第一DBNG-UP的故障信息,以及通过对PFCP节点上报响应消息的信元进行扩 展以携带所述备份组成员的状态信息。
- 根据权利要求9所述的方法,其中,通过对PFCP节点上报请求消息的信元进行扩展以携带所述第一DBNG-UP的故障信息包括:通过扩展的用户面接口故障信元以携带所述第一DBNG-UP的故障信息。
- 根据权利要求9所述的方法,其中,通过对PFCP节点上报响应消息的信元进行扩展以携带所述备份组成员的状态信息包括:通过新增的用户面备份组成员状态信元携带所述备份组成员的状态信息。
- 一种分离的宽带网络网关用户面网络功能DBNG-UP的备份装置,其中,包括:配置模块,设置为在在分离的宽带网络网关控制面网络功能DBNG-CP上配置备份组实例,其中,所述DBNG-CP管理的备份组成员至少包括第一DBNG-UP和第二DBNG-UP;协商模块,设置为通过所述DBNG-CP分别与第一DBNG-UP和第二DBNG-UP进行UP备份能力协商,以完成第一DBNG-UP和第二DBNG-UP之间的主备选举。
- 根据权利要求12的装置,还包括:映射模块,设置为在DBNG-CP上建立第一DBNG-UP和第二DBNG-UP的保护接口到DBNG-CP的映射。
- 一种计算机可读存储介质,所述计算机可读存储介质中存储有计算机程序,其中,所述计算机程序被处理器执行时实现所述权利要求1至11任一项中所述的方法的步骤。
- 一种电子装置,包括存储器、处理器以及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述处理器执行所述计算机程序时实现所述权利要求1至11任一项中所述的方法的步骤。
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CN111654384A (zh) * | 2019-09-27 | 2020-09-11 | 中兴通讯股份有限公司 | 一种主备切换方法、bras设备及存储介质 |
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