WO2023284367A1 - Dbng-up的备份方法及装置 - Google Patents

Dbng-up的备份方法及装置 Download PDF

Info

Publication number
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
Authority
WO
WIPO (PCT)
Prior art keywords
dbng
backup
information
pfcp
backup group
Prior art date
Application number
PCT/CN2022/089970
Other languages
English (en)
French (fr)
Inventor
宋雪雁
李志军
陈勇
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 中兴通讯股份有限公司 filed Critical 中兴通讯股份有限公司
Priority to US18/579,840 priority Critical patent/US20240333582A1/en
Priority to EP22841008.0A priority patent/EP4373045A1/en
Publication of WO2023284367A1 publication Critical patent/WO2023284367A1/zh

Links

Images

Classifications

    • 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
    • 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
    • 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)

Abstract

本发明实施例提供了一种DBNG-UP的备份方法及装置，该方法包括：在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。在本发明实施例中，通过DBNG-CP与其管理的DBNG-UP进行UP备份能力协商，以完成DBNG-UP主备选举，从而解决了UP备份能力协商的问题，增加了DBNG-UP备份保护的灵活性。

Description

DBNG-UP的备份方法及装置 技术领域
本发明实施例涉及通信领域，具体而言，涉及一种分离的宽带网络网关用户面网络功能(Disaggregated Broadband Network Gateway-User Plane,DBNG-UP)的备份方法及装置。
背景技术
传统城域网业务网关，即宽带接入服务(Broadband Access Server，BRAS)设备主要实现固网宽带用户的接入控制与管理功能。
转控分离的vBRAS(virtual Broadband Access Server)实现固定宽带用户的集中管理与流量转发，提升设备资源利用率；同时，通过转发面池化与控制面云化实现冗余备份，提高网络可靠性。通过负荷分担、主备备份等技术实现，可提升业务部署的灵活性及业务运行的可靠性。
为实现DBNG-UP的运行可靠性，可以通过DBNG-UP池化技术，将同一DBNG-CP管理下的多个DBNG-UP共放在同一个池中，其他DBNG-UP可以作为任一DBNG-UP的备份。同时，也可以通过部署DBNG-UP的双机热备(包括1:1备份及N:1备份两种情况)，在主DBNG-UP故障发生时，通过DBNG-UP备份切换实现对主DBNG-UP的备份。
例如，以N:1的DBNG-UP保护示例。在DBNG-CP上配置N个UP(DBNG-UP1，DBNG-UP2，…，DBNG-UPn)为同一备份组实例。这里的备份组实例信息可能包括：备份组成员、备份组成员的优先级、切换策略等。DBNG-UP可能发生故障位置包括：UP-AN之间链路通信、CP-UP之间链路故障、以及DBNG-UP节点故障。又例如，在DBNG-UP上配置N+1个UP(DBNG-UP1，DBNG-UP2，…，DBNG-UPn，DBNG-UP(n+1))在同一备份组实例，通过用户面备份(UP Redundancy)算法选举DBNG-UP1至DBNG-UPn为主UP(Active)，DBNG-UP(n+1)为备UP(Standby)。
为支持DBNG-UP运行的可靠性，需要使用DBNG-CP与DBNG-UP之间的控制面接口协议支持，BBF WT-459指定DBNG控制面接口协议采用报文转发控制协议(Packet Forwarding Control Protocol，PFCP)实现，但是对于DBNG-UP保护这一重要场景，WT-459项目尚未有协议支持的标准规范。
发明内容
本发明实施例提供了一种DBNG-UP的备份方法及装置，以至少解决现有技术中DBNG-CP与DBNG-UP之间的UP备份能力协商的问题。
根据本发明的一个实施例，提供了一种DBNG-UP的备份方法，包括：在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。
在一个示例性实施例中，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。
在一个示例性实施例中，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：DBNG-CP通过控制面接口协议分别与第一DBNG-UP和第二DBNG-UP进行备份能力协商，并对第一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。
在一个示例性实施例中，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。
在一个示例性实施例中，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。
在一个示例性实施例中，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。
在一个示例性实施例中，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。
在一个示例性实施例中，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。
在一个示例性实施例中，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。
在一个示例性实施例中，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。
在一个示例性实施例中，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。
根据本发明的另一个实施例，提供了一种DBNG-UP的备份装置，包括：配置模块，设置为在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。
在一个示例性实施例中，该装置还可以包括：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。
根据本发明的又一个实施例，还提供了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，所述计算机程序被设置为运行时执行上述任一项方法实施 例中的步骤。
根据本发明的又一个实施例，还提供了一种电子装置，包括存储器和处理器，所述存储器中存储有计算机程序，所述处理器被设置为运行所述计算机程序以执行上述任一项方法实施例中的步骤。
通过本发明上述实施例，通过DBNG-CP与其管理的DBNG-UP进行UP备份能力协商，以完成DBNG-UP主备选举，从而解决了UP备份能力协商的问题，增加了DBNG-UP备份保护的灵活性。
附图说明
图1是根据本发明实施例的运行DBNG-UP的备份方法的计算机终端的硬件结构框图；
图2是根据本发明实施例的DBNG-UP备份方法的流程图；
图3是根据本发明实施例的DBNG-UP的备份装置的结构框图；
图4是根据本发明实施例的DBNG-UP备份处理机制示意图；
图5是根据本发明实施例的用户面接口故障点示意图。
具体实施方式
下文中将参考附图并结合实施例来详细说明本发明的实施例。
需要说明的是，本发明的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。
本申请实施例中所提供的方法实施例可以在移动终端、计算机终端、服务器或者类似的运算装置中执行。以运行在网络侧的计算机终端上为例，图1是根据本发明实施例的运行DBNG-CP的备份方法的计算机终端的硬件结构框图。如图1所示，计算机终端可以包括一个或多个(图1中仅示出一个)处理器102(处理器102可以包括但不限于微处理器MCU或可编程逻辑器件FPGA等的处理装置)和用于存储数据的存储器104，其中，上述计算机终端还可以包括用于通信功能的传输设备106以及输入输出设备108。本领域普通技术人员可以理解，图1所示的结构仅为示意，其并不对上述计算机终端的结构造成限定。例如，计算机终端还可包括比图1中所示更多或者更少的组件，或者具有与图1所示不同的配置。
存储器104可用于存储计算机程序，例如，应用软件的软件程序以及模块，如本发明实施例中的分离的宽带网络网关控制面网络功能DBNG-CP的备份方法对应的计算机程序，处理器102通过运行存储在存储器104内的计算机程序，从而执行各种功能应用以及数据处理，即实现上述的方法。存储器104可包括高速随机存储器，还可包括非易失性存储器，如一个或者多个磁性存储装置、闪存、或者其他非易失性固态存储器。在一些实例中，存储器104可进一步包括相对于处理器102远程设置的存储器，这些远程存储器可以通过网络连接至计算机终端。上述网络的实例包括但不限于互联网、企业内部网、局域网、移动通信网及其组合。
传输装置106用于经由一个网络接收或者发送数据。上述的网络具体实例可包括计算机终端的通信供应商提供的无线网络。在一个实例中，传输装置106包括一个网络适配器(Network Interface Controller，简称为NIC)，其可通过基站与其他网络设备相连从而可与互 联网进行通讯。在一个实例中，传输装置106可以为射频(Radio Frequency，简称为RF)模块，其用于通过无线方式与互联网进行通讯。
在本实施例中提供了一种DBNG-UP备份方法。图2是根据本发明实施例的一种DBNG-UP备份方法的流程图，如图2所示，该方法包括如下步骤：
步骤S202，在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；
步骤S204，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。
在本实施例中，通过上述步骤，DBNG-CP和DBNG-UP上进行UP Redundancy能力协商，用于UP Redundancy实例主备选举。
在本实施例的步骤S202中，在DBNG-CP上配置备份组实例，指定备份组成员第一DBNG-UP和第二DBNG-UP，并使能备份(Redundancy)能力。
在本实施例的步骤S202中，可在对应DBNG-UP上部署备份实例，加入UP与用户接入侧连接的接口，使能Redundancy能力。
在本实施例的步骤S204中，可通过控制面接口协议进行DBNG-CP与DBNG-UP的Redundancy能力协商。并完成DBNG-CP对DBNG-UP的主备指定。
在本实施例的步骤S204中，UP Redundancy能力可通过DBNG-CP与DBNG-UP之间的控制面接口协议扩展支持。DBNG-CP对DBNG-UP的主备指定需要通过DBNG-CP与DBNG-UP之间的控制面接口协议扩展支持。
在本实施例的步骤S204之后，还可以包括：当主DBNG-UP发生用户面接口故障，DBNG-UP通告故障信息携带上报到DBNG-CP，DBNG-CP根据预先配置的UP Redundancy算法机制进行保护切换。并通告新活跃(active)的DBNG-UP切换为主UP。
在本实施例中，用户面接口故障可以包括物理接口故障，也可以包括逻辑接口故障；
在本实施例中，对DBNG-UP的主备指定需要通过DBNG-CP与DBNG-UP之间的控制面接口协议扩展支持。
在本实施例中，DBNG-UP需要通告其接入侧和网络侧目的节点，设置新active DBNG-UP为路由下一跳，实现对用户流量的正确导向。
在本实施例中，可基于PFCP协议实现UP Redundancy能力协商，例如，可采用PFCP协商消息(PFCP Association message)实现在DBNG-CP与DBNG-UP之间的UP Redundancy能力通告。
在本实施例中，可采用PFCP节点上报(PFCP Node Report)实现机制完成UP的故障检测及保护组切换流程。例如，采用PFCP节点上报请求(PFCP Node Report Request)及PFCP节点上报响应(PFCP Node Report Response)机制携带DBNG-UP的故障检测信息及保护组切换通告。
在本实施例中，可对PFCP Node Report Request消息的信元(IE)扩展，主要用于DBNG-UP故障点上报请求。该IE可以是新增的固定备份(Fixed Redundancy)IE，也可以是已有IE的扩展。
在实施例中，可对PFCP Node Report Response消息的IE扩展，用于新active DBNG-UP的主备状态通告。该IE可以是新增Fixed Redundancy IE，也可以是已有IE的扩展。
为保障DBNG-UP的运行可靠性，在本发明的上述实施例中提供了在使用PFCP协议进行备份能力协商时，DBNG-CP与DBNG-UP之间通信的PFCP能力协商信息需要包含的内容，及对协议的扩展需求，以及DBNG-CP与DBNG-UP的PFCP协议扩展及处理流程，及可能对PFCP带来的IE扩展需求。
需说明的是，本实施例不局限于PFCP协议，无论控制接口采用何种协议，给出的IE类型和TLV封装信息是通用的。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到根据上述实施例的方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本发明的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如ROM/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，或者网络设备等)执行本发明各个实施例所述的方法。
在本实施例中还提供了一种DBNG-UP的备份装置，该装置用于实现上述实施例及优选实施方式，已经进行过说明的不再赘述。如以下所使用的，术语“模块”可以实现预定功能的软件和/或硬件的组合。尽管以下实施例所描述的装置较佳地以软件来实现，但是硬件，或者软件和硬件的组合的实现也是可能并被构想的。
图3是根据本发明实施例的DBNG-UP的备份装置100的结构框图，如图3所示，该装置包括配置模块10和协商模块20。
配置模块10，设置为在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20，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。
在本发明的另一实施例中，DBNG-UP的备份装置除包括上述配置模块和协商模块外，还可以包括映射模块，该映射模块用于在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。
需要说明的是，上述各个模块是可以通过软件或硬件来实现的，对于后者，可以通过以下方式实现，但不限于此：上述模块均位于同一处理器中；或者，上述各个模块以任意组合的形式分别位于不同的处理器中。
为了便于对本发明所提供的技术方案的理解，下面将结合具体场景的实施例进行详细描述。
需要说明的是，在本发明的实施例中，在DBNG-CP与DBNG-UP之间控制接口，使用PFCP协议为例进行了扩展说明。但本发明不局限于PFCP协议，无论控制接口采用何种协议，给出的信元(Information Element,IE)类型和TLV(Type Length Value)封装信息可以是通用的。
实施例一
在本实施例中，提供一种UP备份(Redundancy)处理机制。图4是本发明实施例的UP备份处理机制示意图。在本实施例中，DBNG-CP与DBNG-UP之间控制面接口采用PFCP协议，对于UP Redundancy功能支持采用PFCP Node Report机制实现对UP Redundancy Group主备状态通告，及通过PFCP Node Report实现对UP故障信息上报及DBNG-CP根据收到的 故障信息进行UP Redundancy备份组切换后的状态通告。如图5所示，该处理机制包括如下步骤：
步骤S401，DBNG-UP1与DBNG-CP完成PFCP Redundancy能力协商，采用PFCP协商请求(PFCP Association Request)和PFCP协商响应(PFCP Association Response)消息进行携带。
步骤S402，DBNG-UP2与DBNG-CP完成PFCP Redundancy能力协商，采用PFCP Association Request和PFCP Association Response消息进行携带。
步骤S403，主UP成员DBNG-UP1通过PFCP节点报告请求(PFCP Node Report Request)通告保护组成员的状态信息(如端口资源信息等)到DBNG-CP。
步骤S404，DBNG-CP回复PFCP节点报告响应(PFCP Node Report Response)信息，并通告保护组成员的状态信息(如active)到DBNG-UP1。
步骤S405，备UP成员DBNG-UP2通过PFCP Node Report Request通告保护组成员的状态信息(如端口资源信息等)到DBNG-CP。
步骤S406，DBNG-CP回复PFCP Node Report Response消息，并通告保护组成员的状态信息(如standby)到DBNG-UP2。
步骤S407，当主UP成员DBNG-UP1发生端口(Port)或者UP1实例故障时，通过PFCP Node Report Request信息上报故障状态信息到DBNG-CP。
步骤S408，DBNG-CP根据收到的故障信息触发保护切换，并通过回复PFCP Node Report Response消息通知DBNG-UP2保护组成员状态切换为active，同时，通知DBNG-UP2保护组成员状态切换为主UP成员。
实施例二
本实施例根据3GPP TS29.244的7.4.5章节描述，PFCP Node Report包括PFCP Node Report Request和PFCP Node Report Response两种报文类型。其中，PFCP Node Report Request包含了可替代的SMF IP地址(Alternative SMF IP Address)IE，用于SMF备份地址的指定，3GPP核心网的SMF为UPF的控制面网络功能，UPF为用户面网络功能，对应到固网网络，DBNG-CP为DBNG控制面网络功能，DBNG-UP为DBNG用户面网络功能。
但是3GPP TS29.244没有对用户面网络功能UPF的备份保护支持。本专利为实现用户面网络功能DBNG-UP的备份保护，需要扩展PFCP协议，用于支持UP Redundancy功能。
本实施例提出增加UP备份组标识(UP Redundancy Group ID)IE，其对应的IE类型为UP Redundancy Group ID类型，如表1所示：
表1
Figure PCTCN2022089970-appb-000001
其中，UP备份组标识(UP Redundancy Group ID)IE封装格式，如表2所示：
表2
Figure PCTCN2022089970-appb-000002
在本实施例中，该IE用于UP Redundancy保护组的配置信息下发，其封装格式如下：
第1-2字节用于IE类型信息封装，IE类型信息为UP Redundancy Group ID IE。
第3-4字节用于IE字段长度信息封装。
第5字节用于UP备份组标识(UP redundancy Group ID)信息封装，表征组(Group)的名称(name)或标识(identifier)等信息。第6-7字节用于UP备份组成员(UP Redundancy Group Member)信息封装，包括CP的用户侧物理接口的名称(name)或标识(ID)，或虚拟接口的名称或标识等。
进一步地，在本实施例中，UP Redundancy Group的组成员是UP的节点标识(node-id)，节点名称(node-name)等，是基于UP粒度的。
第8-9字节用于UP备份组类型(UP Redundancy Group Type)信息封装，用于说明是热备、冷备或温备等。
第10-11字节用于UP备份组策略(UP Redundancy Group Policy)信息封装，用于说明CP倒换的策略，例如优先级和切换策略等。
实施例三
本实施例涉及DBNG-CP的UP Redundancy备份组与成员DBNG-UP的保护端口映射处理，在本实施例中，在DBNG-UP上配置N+1个UP(DBNG-UP1，DBNG-UP2…DBNG-UPn，DBNG-UP(n+1))在同一备份组实例。图5是故障点示意图，标识了故障点1、2、3。DBNG-UP的Redundancy备份保护真正发生切换操作的是在DBNG-CP，但检测故障的点(如图5所示)是在DBNG-UP与用户侧接入的接口上。
在进行故障检测和UP Redundancy部署时，本实施例可包括如下步骤：
步骤一，DBNG-CP上配置UP备份组(UP Redundancy Group)，指定组标识(Group id)信息，并增加组成员(Group member)指向其管理的DBNG-UP，配置其优先级等。
步骤二，在DBNG-UP上配置保护组，将其用户侧接口加入到此保护组中。
步骤三，DBNG-UP需要通过DBNG-CP与DBNG-UP间的控制面接口协议上报UP的接口保护组配置到DBNG-CP。
步骤四，DBNG-CP上建立UP Redundancy Group组与其对应的DBNG-UP的接口(port)映射关系。
步骤五，在主DBNG-UP检测到故障时，通过DBNG-CP与DBNG-UP间的控制面接口协议上报UP用户侧接口故障信息到DBNG-CP。
步骤六，DBNG-CP触发UP Redundancy Group的切换，并通知新的DBNG-UP为主UP(active)。
实施例四
本实施例涉及PFCP扩展支持UP port到UP Redundancy Group的映射方式。在上述实施例一的步骤S403和步骤S404中，DBNG-UP1需要将DBNG-UP1加入到DBNG-CP配置的UP Redundancy备份组信息通过PFCP Node Report Request发送到DBNG-CP1。此信息可以通过携带DBNG-UP上配置的备份组实例信息上传到DBNG-CP，在DBNG-CP上实现UP Redundancy Group(CP上配置UP成员)与UP的备份组实例成员(UP上配置Port成员)实现port—>UP node-id--->UP Redundancy Group ID之间的映射关系。
在本实施例中，在DBNG-CP上形成port—>UP node-id--->UP Redundancy Group ID之间的映射关系扩展PFCP实现。
实施例五
本实施例涉及通过扩展PFCP Node Report Request携带UP故障信息。3GPP PFCP协议有提供用户网络功能的故障检测的用户面故障(User Plane Path Failure)IE类型，但此IE只有GTP-U Peer IE类型，在本实施例中，为支持固网侧DBNG的控制接口协议，需要扩展新增固网接入侧路由协议的可达性检测。如：增加Ethernet，IP route检测等。
本实施例采用逻辑端口(Logical Port)IE进行物理端口或逻辑端口状态及IP可达性检测等。Logical Port IE描述如表3所示：
表3
Figure PCTCN2022089970-appb-000003
在本实施例中，对于User Plane Path Failure IE，type＝102进行扩展，新增Logical Port IE，表4为用户面故障IE信息：
表4
Figure PCTCN2022089970-appb-000004
由于BBF TR-459已经定义了Logical Port IE，在本实施例中可复用此结构，而无需扩展。
实施例六
本实施例涉及PFCP Node Report Response扩展携带UP Redundancy备份组主备使能的问题。参考实施例一的步骤S408，DBNG-UP1上报其用户侧端口故障信息到DBNG-CP，DBNG-CP根据收到的故障信息和设置的UP Redundancy Group切换的算法机制触发UP Redundancy Group切换并通告DBNG-UP2为active UP。
在本实施例中，提出新增UP Redundancy Active IE，表5是Node Report Response扩展 IE信息；
表5
Figure PCTCN2022089970-appb-000005
如下表6为UP Redundancy Active IE封装。
表6
Figure PCTCN2022089970-appb-000006
第5字节封装Redundancy Group的主备(active/standby)状态
Bit 1–Activate:如果此bit置位为"1",那么表示下发的保护组成员为主(active)，如果置位为“0”，则表示此保护组成员为备(standby)。
在本实施例中，这里的成员是UP Redundancy Group member，指对应的UP Node id信息。
Bit 2to 8空缺,缺省设置为“0”，用于将来使用。
在本实施例中，不同于3GPP TS29.244的SMF主备为静态配置，DBNG-UP的主备是在DBNG-CP上动态选举完成的，因此，在主备状态选举完成后，DBNG-CP需要通过PFCP IE信息携带发送到对应Redundancy成员DBNG-UP上。
本发明的实施例还提供了一种计算机可读存储介质，该计算机可读存储介质中存储有计算机程序，其中，该计算机程序被设置为运行时执行上述任一项方法实施例中的步骤。
在一个示例性实施例中，上述计算机可读存储介质可以包括但不限于：U盘、只读存储器(Read-Only Memory，简称为ROM)、随机存取存储器(Random Access Memory，简称为RAM)、移动硬盘、磁碟或者光盘等各种可以存储计算机程序的介质。
本发明的实施例还提供了一种电子装置，包括存储器和处理器，该存储器中存储有计算机程序，该处理器被设置为运行计算机程序以执行上述任一项方法实施例中的步骤。
在一个示例性实施例中，上述电子装置还可以包括传输设备以及输入输出设备，其中，该传输设备和上述处理器连接，该输入输出设备和上述处理器连接。
本实施例中的具体示例可以参考上述实施例及示例性实施方式中所描述的示例，本实施例在此不再赘述。
显然，本领域的技术人员应该明白，上述的本发明的各模块或各步骤可以用通用的计算装置来实现，它们可以集中在单个的计算装置上，或者分布在多个计算装置所组成的网络上，它们可以用计算装置可执行的程序代码来实现，从而，可以将它们存储在存储装置中由计算装置来执行，并且在某些情况下，可以以不同于此处的顺序执行所示出或描述的步骤，或者 将它们分别制作成各个集成电路模块，或者将它们中的多个模块或步骤制作成单个集成电路模块来实现。这样，本发明不限制于任何特定的硬件和软件结合。
以上所述仅为本发明的优选实施例而已，并不用于限制本发明，对于本领域的技术人员来说，本发明可以有各种更改和变化。凡在本发明的原则之内，所作的任何修改、等同替换、改进等，均应包含在本发明的保护范围之内。

Claims (15)

  1. 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。
  2. 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。
  3. 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。
  4. 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。
  5. 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。
  6. 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。
  7. 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。
  8. 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。
  9. 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。
  10. 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。
  11. 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。
  12. 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。
  13. 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。
  14. 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。
  15. 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。
PCT/CN2022/089970 2021-07-16 2022-04-28 Dbng-up的备份方法及装置 WO2023284367A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US18/579,840 US20240333582A1 (en) 2021-07-16 2022-04-28 Method and Apparatus for DBNG-UP Redundancy
EP22841008.0A EP4373045A1 (en) 2021-07-16 2022-04-28 Dbng-up backup method and apparatus

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110807933.1A CN115701039A (zh) 2021-07-16 2021-07-16 Dbng-up的备份方法及装置
CN202110807933.1 2021-07-16

Publications (1)

Publication Number Publication Date
WO2023284367A1 true WO2023284367A1 (zh) 2023-01-19

Family

ID=84919009

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/089970 WO2023284367A1 (zh) 2021-07-16 2022-04-28 Dbng-up的备份方法及装置

Country Status (4)

Country Link
US (1) US20240333582A1 (zh)
EP (1) EP4373045A1 (zh)
CN (1) CN115701039A (zh)
WO (1) WO2023284367A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4412162A1 (en) * 2023-02-03 2024-08-07 Juniper Networks, Inc. Control plane initiated switchover for subscriber group

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170126436A1 (en) * 2015-11-02 2017-05-04 International Business Machines Corporation Distributed virtual gateway appliance
CN107623593A (zh) * 2017-08-31 2018-01-23 北京华为数字技术有限公司 基于cu分离的双机热备的方法及设备
CN108667575A (zh) * 2017-09-06 2018-10-16 新华三技术有限公司 一种bras转控分离的备份方法和装置
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

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170126436A1 (en) * 2015-11-02 2017-05-04 International Business Machines Corporation Distributed virtual gateway appliance
CN107623593A (zh) * 2017-08-31 2018-01-23 北京华为数字技术有限公司 基于cu分离的双机热备的方法及设备
CN108667575A (zh) * 2017-09-06 2018-10-16 新华三技术有限公司 一种bras转控分离的备份方法和装置
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4412162A1 (en) * 2023-02-03 2024-08-07 Juniper Networks, Inc. Control plane initiated switchover for subscriber group

Also Published As

Publication number Publication date
EP4373045A1 (en) 2024-05-22
CN115701039A (zh) 2023-02-07
US20240333582A1 (en) 2024-10-03

Similar Documents

Publication Publication Date Title
JP6988004B2 (ja) 集中型ユニットと分散型ユニットのアーキテクチャにおける通信方法および通信デバイス
US8817593B2 (en) Method and apparatus providing failover for a point to point tunnel for wireless local area network split-plane environments
CN105323136B (zh) 信息的处理方法及装置
WO2016095141A1 (zh) 软件定义网络中数据转发的方法、设备和系统
CN111510379A (zh) Evpn报文处理方法、设备及系统
US11736962B2 (en) Methods, apparatus and computer-readable mediums relating to configuration of redundant paths
WO2015000362A1 (zh) 一种业务节点配置方法、业务节点池注册器及系统
JP6121548B2 (ja) パケットを送信するための方法、ルーティング・ブリッジ、およびシステム
WO2017186122A1 (zh) 流量调度
WO2018090386A1 (zh) 一种nf组件异常的处理方法、设备及系统
WO2022001669A1 (zh) 建立vxlan隧道的方法及相关设备
WO2022143818A1 (zh) 故障处理方法、控制面网元、切换决策网元及相关设备
WO2021169291A1 (zh) 发布路由的方法、网元、系统及设备
JP2019532587A (ja) マルチキャスト・サービス提供方法及びソフトウェア定義ネットワーキング・コントローラ
CN114079613B (zh) 一种通信方法及相关设备
WO2023134338A1 (zh) 一种通信方法及装置
WO2023284367A1 (zh) Dbng-up的备份方法及装置
CN113825251A (zh) 会话建立方法、装置、系统及计算机存储介质
WO2023284366A1 (zh) Dbng-cp的备份方法及装置
EP2879338A1 (en) Logical channel establishing method and system, edge virtual bridging station, and bridge
CN108271149B (zh) 一种用户数据锚点迁移的方法、设备和系统
CN102946350A (zh) 一种基于优先级的数据传输方法和设备
CN110545240B (zh) 基于分布式聚合系统的标签转发表的建立及报文转发方法
WO2011044791A1 (zh) 互通业务报文的发送方法以及接入支持节点
CN113595915A (zh) 转发报文的方法及相关设备

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22841008

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 18579840

Country of ref document: US

WWE Wipo information: entry into national phase

Ref document number: 2022841008

Country of ref document: EP

NENP Non-entry into the national phase

Ref country code: DE

ENP Entry into the national phase

Ref document number: 2022841008

Country of ref document: EP

Effective date: 20240216