WO2022089445A1 - 一种宽带连接方法及装置 - Google Patents

一种宽带连接方法及装置 Download PDF

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Publication number
WO2022089445A1
WO2022089445A1 PCT/CN2021/126488 CN2021126488W WO2022089445A1 WO 2022089445 A1 WO2022089445 A1 WO 2022089445A1 CN 2021126488 W CN2021126488 W CN 2021126488W WO 2022089445 A1 WO2022089445 A1 WO 2022089445A1
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Prior art keywords
vbng
user
usf
user plane
information
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PCT/CN2021/126488
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English (en)
French (fr)
Inventor
李祖庆
彭涛
余舟毅
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华为技术有限公司
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Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to EP21885172.3A priority Critical patent/EP4221117A4/en
Publication of WO2022089445A1 publication Critical patent/WO2022089445A1/zh
Priority to US18/309,326 priority patent/US20230269130A1/en

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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2854—Wide area networks, e.g. public data networks
    • H04L12/2856—Access arrangements, e.g. Internet access
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/2854—Wide area networks, e.g. public data networks
    • H04L12/2856—Access arrangements, e.g. Internet access
    • H04L12/2858—Access network architectures
    • H04L12/2859—Point-to-point connection between the data network and the subscribers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4641—Virtual LANs, VLANs, e.g. virtual private networks [VPN]
    • 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
    • H04L41/0631—Management of faults, events, alarms or notifications using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/28—Routing or path finding of packets in data switching networks using route fault recovery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/42—Centralised routing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/645—Splitting route computation layer and forwarding layer, e.g. routing according to path computational element [PCE] or based on OpenFlow functionality
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4604—LAN interconnection over a backbone network, e.g. Internet, Frame Relay
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4604—LAN interconnection over a backbone network, e.g. Internet, Frame Relay
    • H04L2012/4629—LAN interconnection over a backbone network, e.g. Internet, Frame Relay using multilayer switching, e.g. layer 3 switching
    • 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
    • H04L41/40—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks using virtualisation of network functions or resources, e.g. SDN or NFV entities
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/302—Route determination based on requested QoS
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/58—Association of routers
    • H04L45/586—Association of routers of virtual routers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L45/00—Routing or path finding of packets in data switching networks
    • H04L45/76—Routing in software-defined topologies, e.g. routing between virtual machines
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/13—Cell handover without a predetermined boundary, e.g. virtual cells

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a broadband connection method and device.
  • MAN has evolved from a traditional network-centric architecture to a data center-centric network architecture.
  • Traditional network element equipment has also evolved from specialization to generalization.
  • the evolution of traditional network element equipment from specialization to generalization mainly requires two decouplings: decoupling of control and forwarding, and decoupling of software and hardware.
  • Broadband access network equipment (Broadcast Network Gateway/Virtual Broadcast Network Gateway, BNG/vBNG) is very important in user broadband access services and scenarios.
  • the main requirements for BNG equipment in user access are user authentication, access control, Traffic scheduling, etc.
  • BNG devices realize the two decouplings mentioned above based on the SDN/NFV architecture.
  • the control plane can manage multiple forwarding planes and perform flexible scheduling of users, traffic, and resources among multiple forwarding planes. Compared with a single machine, the utilization and reliability of the device can be greatly improved. However, when the user plane fails, the user can only access the new user plane to restore traffic by redialing after the disconnection. The recovery time is too long and the user experience is affected.
  • the embodiment of the present application discloses a broadband connection method and a related device, which can keep the broadband accessed by the user from being dropped and continue to access the network in the case of a user plane failure.
  • the embodiment of the present application discloses a broadband connection method.
  • the virtual broadband access gateway control plane vBNG-CP receives first indication information from the user plane selection decision point USF, where the first indication information is used to indicate a failure of the vBNG-UP on the user plane of the first virtual broadband access gateway In the case of a second vBNG-UP that replaces the first vBNG-UP.
  • the vBNG-CP sends the user entry to the second vBNG-UP according to the first indication information.
  • the user entry may include relevant information that the second vBNG-UP accesses the user to the network according to the user entry when the second vBNG-UP learns that the first vBNG-UP is faulty.
  • the vBNG-CP can obtain the target user plane (the second vBNG-UP) to which the users affected by the failure of the first user plane need to be migrated in advance, so the vBNG-CP can send the user entry to the second vBNG in advance.
  • -UP in this way, when the first user plane fails, the time for sending user entries to the second vBNG-UP can be saved, and the speed of switching user traffic from the first vBNG-UP to the second vBNG-UP can be improved.
  • the vBNG-CP may acquire the fault of the first vBNG-UP information before the virtual broadband access gateway control plane vBNG-CP receives the first indication information from the user plane selection decision point USF.
  • the vBNG-CP may acquire the fault of the first vBNG-UP information before the virtual broadband access gateway control plane vBNG-CP receives the first indication information from the user plane selection decision point USF.
  • the vBNG-CP may acquire the fault of the first vBNG-UP information.
  • the vBNG-CP may also send first notification information to the USF, where the first notification information is used to notify the failure of the first vBNG-UP.
  • the vBNG-CP can monitor the connection status with the first vBNG-UP in real time, so that it can sense the failure of the first vBNG-UP in real time, and when the first vBNG-UP fails, it can send a failure message to the USF, so that USF can query the target user plane to be migrated.
  • the broadband access gateway control plane vBNG-CP after the broadband access gateway control plane vBNG-CP receives the first indication information from the user plane selection decision point USF, the vBNG-CP sends the second vBNG-CP to the second vBNG-CP according to the first indication information. Before the UP sends the user entry, the vBNG-CP may also acquire the fault information of the first vBNG-UP.
  • the vBNG-CP after the virtual broadband access gateway control plane vBNG-CP receives the first indication information from the user plane selection decision point USF, the vBNG-CP sends the second vBNG to the second vBNG according to the first indication information Before the UP sends the user entry, it further includes: the vBNG-CP receives a notification message sent by the second vBNG-UP after the user traffic migrates from the first vBNG-UP to the second vBNG-UP, where the notification message is used to indicate the vBNG-CP The user entry is sent to the second vBNG-UP.
  • the vBNG-CP may send the first migration request to the software-defined network SDN controller, The first migration request is used for requesting to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the method further includes: the vBNG-CP sends a notification message to the USF that the migration of the user entry is successful, where the notification message is used for The USF triggers the SDN controller to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • an embodiment of the present application discloses a broadband connection method.
  • the software defined network SDN controller receives a first migration request, wherein the first migration request is used to request migration of user traffic from the first vBNG-UP to the second vBNG-UP in the event of a failure of the first vBNG-UP UP.
  • the SDN controller control switching point SF can also migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the SDN controller can migrate user traffic from the first vBNG-UP to the second vBNG-UP when the first vBNG-UP fails, which ensures that the user does not perceive the first vBNG-UP failure and maintains the The user's broadband connection is not interrupted, which improves the user's satisfaction.
  • the SDN controller may acquire fault information of the user plane vBNG-UP of the first virtual broadband access gateway.
  • the SDN controller may also send first notification information to the user plane selection decision point USF, where the first notification information is used to notify the failure of the first vBNG-UP.
  • the SDN controller can monitor the connection status with the first vBNG-UP in real time, so that it can sense the failure of the first vBNG-UP in real time, and when the first vBNG-UP fails, it can send a failure message to the USF, so that USF can query the target user plane to be migrated.
  • the first migration request comes from the vBNG-CP or the USF.
  • the SDN controller controlling the switch point SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP is embodied in that the SDN controller sends the second vBNG-UP to the SF
  • the path information is used to control the switching point SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP, wherein the path information is used by the SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the SDN controller controls the switch point SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the local area network VLAN or the double-layer virtual local area network QinQ is bound to the interface corresponding to the second vBNG-UP to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • an embodiment of the present application discloses a broadband connection method.
  • the user plane selection decision point USF determines the second virtual broadband access gateway user plane vBNG-UP, wherein the second vBNG-UP is used to replace the first vBNG-UP to maintain the user after the first vBNG-UP fails uninterrupted broadband connection with vBNG-UP.
  • the USF sends first indication information to the virtual broadband access gateway control plane vBNG-CP, where the first indication information is used to instruct the first virtual broadband access gateway user plane vBNG-UP to replace the first vBNG-UP in the event of failure of the first virtual broadband access gateway user plane vBNG-UP 2.
  • vBNG-UP the user plane selection decision point USF determines the second virtual broadband access gateway user plane vBNG-UP, wherein the second vBNG-UP is used to replace the first vBNG-UP to maintain the user after the first vBNG-UP fails uninterrupted broadband connection with vBNG-UP.
  • the USF sends
  • the USF can decide a target user plane that satisfies load balancing according to various requirements, so that in the case of a failure of the first vBNG-UP, the target user plane (second vBNG-UP) can be used to replace the failed vBNG-UP. .
  • the utilization rate and efficiency of the network are improved, and the user satisfaction is improved.
  • the USF may receive a first notification message, where the first notification message is used for Notify the first vBNG-UP failure.
  • the USF may send the first migration request to the software-defined network SDN controller, and the second virtual broadband access gateway user plane vBNG-UP may be sent by the USF to the software-defined network SDN controller.
  • a migration request is used to request migration of user traffic from the first vBNG-UP to the second vBNG-UP in the event of a failure of the first vBNG-UP.
  • the USF may receive a second notification message from the vBNG-CP, where the second notification message is used to represent the vBNG-CP
  • the user entry has been sent to the second vBNG-UP.
  • the USF may send a first migration request to the SDN controller according to the second notification message, where the first migration request is used by the SDN controller to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the user entry is used for the second vBNG-UP to access the user to the network according to the user entry when the first vBNG-UP fails.
  • the first notification message may come from the vBNG-CP or the SDN controller.
  • the USF determining the second vBNG-UP is specifically expressed as: the USF may determine the second vBNG-UP from multiple vBNG-UPs according to the service level agreement SLA.
  • an embodiment of the present application discloses a broadband connection method.
  • the switching point SF can receive path information sent by the software-defined network SDN controller, where the path information is used to indicate that the user traffic is to be transferred from the first virtual broadband access gateway user plane vBNG-UP to the first virtual broadband access gateway in case of failure of the first virtual broadband access gateway
  • One vBNG-UP is migrated to the second vBNG-UP.
  • the SF can also acquire fault information of the first vBNG-UP; the SF can also migrate user traffic from the first vBNG-UP to the second vBNG-UP according to the path information.
  • the SF can monitor the connection status with the first vBNG-UP in real time, so that it can sense the failure of the first vBNG-UP in real time.
  • One vBNG-UP is migrated to the target user plane (second vBNG-UP). The traffic migration is completed without the user sensing the failure of the first vBNG-UP, which improves the user experience.
  • the switching point SF migrates the user traffic from the first vBNG-UP to the second vBNG-UP.
  • the SF can transfer the user's corresponding virtual local area network VLAN or dual network according to the path information.
  • the layer virtual local area network QinQ is bound to the interface corresponding to the second vBNG-UP to complete the migration of user traffic from the first vBNG-UP to the second vBNG-UP.
  • an embodiment of the present application discloses a virtual broadband access gateway control plane device.
  • a receiving unit is configured to receive first indication information from the user plane selection decision point USF, where the first indication information is used to indicate that in the case of a failure of the user plane vBNG-UP of the first virtual broadband access gateway A second vBNG-UP that replaces the first vBNG-UP.
  • a processing unit configured to send a user entry to the second vBNG-UP according to the first indication information, wherein the user entry is used for the second vBNG-UP to The user entry connects the user to the network.
  • the receiving unit before the receiving unit is configured to receive the first indication information from the user plane selection decision point USF, the receiving unit is further configured to acquire fault information of the first vBNG-UP; the above device It may further include a sending unit configured to send first notification information to the USF, wherein the first notification information is used to notify the first vBNG-UP failure.
  • the processing unit is configured to send the user table to the second vBNG-UP according to the first indication information
  • the receiving unit is further configured to acquire the fault information of the first vBNG-UP.
  • the processing unit is configured to send the user table to the second vBNG-UP according to the first indication information
  • the receiving unit is further configured to receive a notification message sent by the second vBNG-UP after user traffic migrates from the first vBNG-UP to the second vBNG-UP, wherein the notification message is used to instruct the vBNG-CP to vBNG-UP sends user entries.
  • the above-mentioned apparatus may further include a sending unit configured to send the software-defined network SDN control
  • the server sends a first migration request, where the first migration request is used to request to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the above apparatus may further include a sending unit, configured to send the user entry to the USF A notification message of successful migration, where the notification message is used by the USF to trigger the SDN controller to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • an embodiment of the present application discloses a software-defined network controller device.
  • a receiving unit is configured to receive a first migration request, wherein the first migration request is used to request to migrate user traffic from the first vBNG-UP to the second vBNG-UP in the case of a failure of the first vBNG-UP UP.
  • the processing unit is configured to control the switching point SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the receiving unit before the receiving unit is configured to receive the first migration request, the receiving unit is further configured to acquire fault information of the user plane vBNG-UP of the first virtual broadband access gateway.
  • the above apparatus may further include a sending unit configured to send first notification information to the user plane selection decision point USF, wherein the first notification information is used to notify the failure of the first vBNG-UP.
  • the first migration request may come from the vBNG-CP or the USF.
  • the processing unit is specifically configured to send the path information of the second vBNG-UP to the SF to control the switching point SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP , the path information is used by the SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the processing unit is specifically configured to control the SF to bind the virtual local area network VLAN corresponding to the user or the double-layer virtual local area network QinQ to the interface corresponding to the second vBNG-UP, so as to connect the user Traffic is migrated from the first vBNG-UP to the second vBNG-UP.
  • an embodiment of the present application discloses an apparatus for selecting a decision point on a user plane.
  • the processing unit is configured to determine the second virtual broadband access gateway user plane vBNG-UP, wherein the second vBNG-UP is used to replace the first vBNG-UP to connect the user to the user after the first vBNG-UP fails.
  • vBNG-UP that enters the network.
  • a sending unit configured to send first indication information to the virtual broadband access gateway control plane vBNG-CP, where the first indication information is used to indicate that the first vBNG is replaced in the case of a failure of the first virtual broadband access gateway user plane vBNG-UP - UP's second vBNG-UP.
  • the processing unit before the processing unit is configured to determine the second virtual broadband access gateway user plane vBNG-UP, the processing unit further includes: a receiving unit, configured to receive a first notification message, wherein the first The notification message is used to notify the first vBNG-UP failure.
  • the sending unit may also be configured to send the first migration to the software-defined network SDN controller request, the first migration request is used for requesting to migrate user traffic from the first vBNG-UP to the second vBNG-UP in the case of the failure of the first vBNG-UP.
  • the receiving unit may also be configured to receive a second notification message from the vBNG-CP, the second notification message Used to indicate that the vBNG-CP has sent the user entry to the second vBNG-UP; the sending unit can also be used to send a first migration request to the SDN controller according to the second notification message, where the first migration request is used by the SDN controller Migrate user traffic from the first vBNG-UP to the second vBNG-UP; wherein the user entry is the information of the user accessing the network from the second vBNG-UP, and the user entry is used for the second vBNG-UP in the first vBNG -Up failure situation maintains the user's broadband connection.
  • the first notification message may come from the vBNG-CP or the SDN controller.
  • the processing unit is specifically configured to determine the second vBNG-UP from the plurality of vBNG-UPs according to the service level agreement SLA.
  • an embodiment of the present application discloses a switch point device.
  • a receiving unit is configured to receive path information sent by the SDN controller, wherein the path information is used to indicate that the user traffic is to be transferred from the first vBNG to the first virtual broadband access gateway in the case of a failure of the user plane vBNG-UP of the first virtual broadband access gateway -UP is migrated to the second vBNG-UP.
  • an acquiring unit configured to acquire fault information of the first vBNG-UP; and a processing unit, configured to migrate user traffic from the first vBNG-UP to the second vBNG-UP according to the path information.
  • the processing unit is specifically configured to bind the virtual local area network VLAN corresponding to the user or the double-layer virtual local area network QinQ to the interface corresponding to the second vBNG-UP according to the path information to complete the user interface. Traffic is migrated from the first vBNG-UP to the second vBNG-UP.
  • an embodiment of the present application discloses a broadband connection system, including a vBNG-CP device and a USF device.
  • the USF device is configured to send first indication information to the vBNG-CP device, the first indication information It is used to indicate the second vBNG-UP that replaces the first vBNG-UP in the case of the failure of the first virtual broadband access gateway user plane vBNG-UP.
  • the vBNG-CP device is configured to send a user entry to the second vBNG-UP according to the first indication information, where the user entry is information about the user accessing the network from the second vBNG-UP, and the user entry is used for the second vBNG -
  • the UP accesses the user to the network according to the user entry in the event of a failure of the first vBNG-UP.
  • system further includes:
  • the SDN controller is configured to receive a first migration request, where the first migration request is used to request to migrate user traffic from the first vBNG-UP to the second vBNG-UP in the case of a failure of the first vBNG-UP.
  • the SF device is configured to migrate user traffic from the first vBNG-UP to the second vBNG-UP according to path information, wherein the path information is used to indicate that in the case of a failure of the first virtual broadband access gateway user plane vBNG-UP User traffic migrates from the first vBNG-UP to the second vBNG-UP.
  • the vBNG-CP device before the USF device is configured to send the first indication information to the vBNG-CP device, the vBNG-CP device is further configured to acquire fault information of the first vBNG-UP;
  • the vBNG-CP device is further configured to send first notification information to the USF, where the first notification information is used to notify the failure of the first vBNG-UP.
  • the vBNG-CP device is configured to send the user entry to the second vBNG-UP according to the first indication information before, the vBNG-CP device is also used to acquire the fault information of the first vBNG-UP.
  • the vBNG-CP device after the USF device is configured to send the first indication information to the vBNG-CP device, the vBNG-CP device is configured to send the user entry to the second vBNG-UP according to the first indication information Before, the vBNG-CP device is further configured to receive a notification message sent by the second vBNG-UP after user traffic migrates from the first vBNG-UP to the second vBNG-UP, where the notification message is used to instruct the vBNG-CP to send the 2.
  • vBNG-UP sends user entries.
  • the vBNG-CP device is further configured to control the software defined network SDN
  • the server sends a first migration request, where the first migration request is used to request to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the vBNG-CP device is further configured to send the user entry to the USF A notification message of successful migration, the notification message is used by the USF to trigger the SDN controller to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the USF apparatus is further configured to determine the user plane vBNG-UP of the second virtual broadband access gateway.
  • the USF device before the USF device is used to determine the user plane vBNG-UP of the second virtual broadband access gateway, the USF device may also be used to receive a first notification message, and the first notification message is used for Notify the first vBNG-UP failure.
  • the USF device may also be configured to send the first migration request to the software-defined network SDN controller , the first migration request is used for requesting to migrate user traffic from the first vBNG-UP to the second vBNG-UP when the first vBNG-UP fails.
  • the USF device may also be configured to receive a second notification message from the vBNG-CP, the first The second notification message is used to indicate that the vBNG-CP has sent the user entry to the second vBNG-UP;
  • the USF device may also be configured to send the first migration request to the SDN controller according to the second notification message.
  • the USF apparatus may be specifically configured to determine the second vBNG-UP from multiple vBNG-UPs according to the service level agreement SLA.
  • the SDN controller before the SDN controller is configured to receive the first migration request, the SDN controller is further configured to acquire fault information of the user plane vBNG-UP of the first virtual broadband access gateway;
  • the SDN controller is further configured to send first notification information to the USF, where the first notification information is used to notify the failure of the first vBNG-UP.
  • the SDN controller may also be configured to control the switching point SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the SDN controller is specifically configured to send path information of the second vBNG-UP to the SF to control the switching point SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP UP, the path information is used by the SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the SDN controller is specifically configured to control the SF to bind the virtual local area network VLAN corresponding to the user or the double-layer virtual local area network QinQ to the interface corresponding to the second vBNG-UP, so as to connect the user Traffic is migrated from the first vBNG-UP to the second vBNG-UP.
  • the SF may also be used to receive path information sent by the SDN controller.
  • the SF may also be used to acquire fault information of the first vBNG-UP.
  • the SF can be specifically used to bind the virtual local area network VLAN corresponding to the user or the double-layer virtual local area network QinQ to the interface corresponding to the second vBNG-UP according to the path information to complete the user traffic flow. Migrate from the first vBNG-UP to the second vBNG-UP.
  • an embodiment of the present application discloses a virtual broadband access gateway control plane device.
  • the device includes at least one processor and a communication interface, where the communication interface is used to send and/or receive data, and at least one processor is used to call at least one A computer program stored in the memory, so that the device implements the method described in the first aspect or any one of the specific embodiments of the first aspect.
  • an embodiment of the present application discloses a software-defined network controller device, the device includes at least one processor and a communication interface, where the communication interface is used to send and/or receive data, and at least one processor is used to call at least one memory
  • the computer program stored in the device enables the device to implement the method described in the second aspect or any specific implementation manner of the second aspect.
  • an embodiment of the present application discloses a user plane selection decision point device, the device includes at least one processor and a communication interface, the communication interface is used for sending and/or receiving data, and at least one processor is used for calling at least one memory
  • the computer program stored in the device enables the device to implement the method described in the third aspect or any specific implementation manner of the third aspect.
  • an embodiment of the present application discloses a switch point device, the device includes at least one processor and a communication interface, the communication interface is used for sending and/or receiving data, and the at least one processor is used for calling at least one stored in a memory.
  • a computer program to enable a device to implement the method described in the second aspect or any one of the specific embodiments of the second aspect.
  • an embodiment of the present application discloses a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium, and when the computer program runs on one or more processors, the first aspect or the first aspect is executed.
  • a computer program is stored in the computer-readable storage medium, and when the computer program runs on one or more processors, the first aspect or the first aspect is executed.
  • an embodiment of the present application discloses a computer program product, when the computer program product runs on one or more processors, executes the first aspect or any specific implementation of the first aspect, or The second aspect or any specific embodiment of the second aspect, or the third aspect or any specific embodiment of the third aspect, or the fourth aspect or any specific embodiment of the fourth aspect method described.
  • an embodiment of the present application discloses a chip system, the chip system includes at least one processor, a memory, and an interface circuit, where the interface circuit is used to provide information input/output for the at least one processor, and the memory stores There is a computer program which, when run on one or more processors, performs the method described in the first aspect or any one of the specific embodiments of the first aspect.
  • an embodiment of the present application discloses a chip system, the chip system includes at least one processor, a memory, and an interface circuit, where the interface circuit is used to provide information input/output for the at least one processor, and the memory stores There is a computer program which, when run on one or more processors, performs the method described in the second aspect or any one of the specific embodiments of the second aspect.
  • an embodiment of the present application discloses a chip system, the chip system includes at least one processor, a memory, and an interface circuit, where the interface circuit is used to provide information input/output for the at least one processor, and the memory stores There is a computer program which, when run on one or more processors, performs the method described in the third aspect or any one of the specific embodiments of the third aspect.
  • an embodiment of the present application discloses a chip system, the chip system includes at least one processor, a memory, and an interface circuit, where the interface circuit is configured to provide information input/output for the at least one processor, and the memory stores There is a computer program that, when run on one or more processors, performs the method described in the fourth aspect or any one of the specific embodiments of the fourth aspect.
  • FIG. 1A is a schematic diagram of a vBNG architecture provided by an embodiment of the present application.
  • FIG. 1B is a schematic diagram of the architecture of a vBNG-UP provided by an embodiment of the present application
  • FIG. 2A is a schematic diagram of a network architecture provided by an embodiment of the present application.
  • 2B is a schematic flowchart of a user broadband access provided by an embodiment of the present application.
  • FIG. 3 is a schematic diagram of the architecture of a broadband connection provided by an embodiment of the present application.
  • FIG. 4 is a schematic flowchart of another broadband connection provided by an embodiment of the present application.
  • FIG. 5 is a schematic flowchart of another broadband connection provided by an embodiment of the present application.
  • FIG. 6 is a schematic flowchart of another broadband connection provided by an embodiment of the present application.
  • FIG. 7 is a schematic flowchart of another broadband connection provided by an embodiment of the present application.
  • FIG. 8 is a schematic flowchart of another broadband connection provided by an embodiment of the present application.
  • FIG. 9 is a schematic flowchart of another broadband connection provided by an embodiment of the present application.
  • FIG. 10 is a schematic structural diagram of a virtual broadband access gateway control plane device provided by an embodiment of the present application.
  • FIG. 11 is a schematic structural diagram of a software-defined network controller device provided by an embodiment of the present application.
  • FIG. 12 is a schematic structural diagram of a user plane selection decision point device provided by an embodiment of the present application.
  • FIG. 13 is a schematic structural diagram of a switching point device provided by an embodiment of the present application.
  • FIG. 14 is a schematic structural diagram of a broadband connection system provided by an embodiment of the present application.
  • FIG. 15 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.
  • BNG Broadband Network Gateway
  • BNG equipment is a new type of access gateway for broadband network applications. It is located at the edge layer of the backbone network. It is usually used as the termination point of user access in the metropolitan area network and the provider of basic services. It is used to terminate the point-to-point protocol ( Pointto-PointPotocol Over Ethernet, PPPOE) connection, aggregate user traffic, cooperate with authentication system, billing system, customer management system and service policy control system to realize user access authentication, billing and management functions.
  • PPPOE Pointto-PointPotocol Over Ethernet
  • VBNG Virtual Broadband Network Gateway
  • vBNG is a virtual device obtained by virtualizing traditional broadband network gateway functions. Since the vBNG can run in the hardware environment of a general-purpose server, the related functions that can be achieved by traditional BNG equipment can be realized, the cost of upgrading when deploying new services is reduced, and the maintainability is improved. For example, vBNG can complete user online processing, user authentication and accounting (Authentication, Authorization and Accounting, AAA) during user access.
  • AAA Authentication, Authorization and Accounting
  • SDN is an implementation of network virtualization and a new network innovation architecture that can define and control the network through software programming. Its core technology OpenFlow realizes flexible control of network traffic by separating the control plane and data plane of network devices, making the network more intelligent as a pipeline, and providing a good platform for the innovation of core networks and applications.
  • SDN separates data from control.
  • control layer it includes logically centralized and programmable controllers, which can master global network information, and facilitate operators and researchers to manage and configure the network and deploy new protocols.
  • data layer including dumb switches (different from traditional Layer 2 switches, which specifically refer to devices used to forward data), only provide simple data forwarding functions, which can quickly process matching data packets and adapt to the increasing demand of traffic.
  • An open unified interface (such as OpenFlow, etc.) is used for interaction between the two layers. The controller sends unified standard rules to the switch through the standard interface, and the switch only needs to perform corresponding actions according to these rules.
  • NFV is a concept of network architecture, which uses virtualization technology to divide the functions of the network node hierarchy into several functional blocks, which are implemented in software, and are no longer limited to hardware architecture.
  • NFV Network-to-vehicle
  • NFV Network-to-vehicle
  • software and hardware decoupling and function abstraction network device functions no longer depend on dedicated hardware, and resources can be fully and flexibly shared, enabling rapid development and deployment of new services, and automatic deployment, elastic scaling, fault isolation and Self-healing etc.
  • SLA Service Level Agreement
  • an SLA In a communication network, in order to ensure the quality of communication services, an SLA will be signed between the service provider and the user. SLA is a formal agreement. Service providers provide users with differentiated services through SLA and ensure that the service quality meets the provisions of the SLA. At the same time, when there is a violation of the service quality, the service quality does not meet the terms of the signed SLA. requirements, the user will be compensated or discounted according to the SLA.
  • the same user may require different levels of service under different circumstances. For example, when an enterprise user subscribes to a VPN service, they usually need to guarantee a higher service level during working hours to ensure the normal operation of their own business, and are willing to pay a higher service fee for this; A low level of service to meet the performance of non-essential work activities and want to pay a lower fee. For another example, in the digital telephone service, an individual user may tolerate an appropriate packet loss rate, but in some important cases, such as video conferencing, etc., they want the service to provide a high level of service and are willing to pay higher fees. .
  • FIG. 1A is a schematic diagram of a vBNG architecture provided by an embodiment of the present application.
  • vBNG under the architecture of the separation of forwarding and control (forwarding and control), vBNG can realize the separation of control plane (vBNG-CP) and user plane (vBNG-UP) through SDN, and realize the separation of software and hardware through NFV. Decoupling.
  • the broadband network gateway BNG device realizes the decoupling of the user plane and the control plane based on the SDN/NFV architecture.
  • a virtual broadband network gateway vBNG The control plane vBNG-CP
  • vBNG-UP vBNG user planes
  • vBNG-UP vBNG user planes
  • the average number of user access ports on a vBNG-UP can reach 100, so a vBNG-CP needs to manage thousands or even tens of thousands of user access ports.
  • the business system is a peripheral system platform, which can be linked with the vBNG system to provide various services, mainly including Remote Authentication Dial In User Service (RADIUS) server, Dynamic Host Configuration Protocol (DHCP) server, One or more of Log Server, Portal Server, etc. Further, the business system may be a server or a server cluster composed of multiple servers.
  • RADIUS Remote Authentication Dial In User Service
  • DHCP Dynamic Host Configuration Protocol
  • the control plane 103A also known as vBNG-CP, is responsible for user control domain management, mainly for user access management, policy management, address management, user authentication, authorization and accounting, configuration and management through command mode, and unified
  • the northbound interface connects external business systems, interacts with a management and network orchestration (MANO) system (not shown in FIG. 1A ) (implements one-click deployment and elastic expansion and contraction of vBNG-CP), and so on.
  • MANO management and network orchestration
  • VNF virtualized network function
  • vBNG-CP generally uses an x86 server to realize virtualization.
  • the user plane 103B also known as vBNG-UP, is responsible for the forwarding of user data packets.
  • the main functions include executing the functions of the user plane of traditional BNG devices (traffic forwarding, traffic statistics, quality of service (QoS) policy execution, etc. ), enable VPN, configure and manage through command mode.
  • traffic forwarding traffic statistics
  • QoS quality of service
  • the interface 103C may include one or more of a protocol interface, a control interface, and a management interface.
  • the protocol interface can transmit protocol packets such as PPPoE and IPoE (IP over Ethernet) through a Virtual Extensible Local Area Network (VxLAN) tunnel;
  • the control interface can implement vBNG-CP to deliver user entries to vBNG-UP through Openflow ( Or referred to as service flow entry) and vBNG-UP reports service events to vBNG-CP;
  • the management interface can implement the configuration and delivery of vBNG-CP to vBNG-UP through Netconf.
  • FIG. 1B is a schematic structural diagram of a vBNG-UP provided by an embodiment of the present application.
  • vBNG-UP generally exists in two forms, one is virtual user plane 104A (virtual User Plan, vUP), vUP104A as a VNF, can be a virtualized network element running on an x86 server; the other One is a physical user plane 104B (physic User Plane, pUP).
  • pUP 104B may be a network element running on a traditional hardware network device.
  • the control plane 103 vBNG-CP
  • vBNG-CP can be used to manage vUP and pUP.
  • vBNG-UP can be distributed at the edge of the network or at the center of the network, which is not limited in this embodiment of the present application.
  • FIG. 2A is a schematic diagram of a network architecture provided by an embodiment of the present application.
  • the network architecture may include one or more of the following: a user equipment 200, an access network (AN) device 201, a switching point (Steering Function, SF) 202, and a first physical user plane 203A (pUP), second physical user plane 203B, third physical user plane 203Cp, control plane (vBNG-CP) 204, server 205, user selection decision point (UP Selection Function, USF) 206, software defined network (SDN) control device 207.
  • the user plane not only includes the first physical user plane 203A (pUP), the second physical user plane 203B, and the third physical user plane 203 shown in FIG. 2A .
  • the user equipment 200 includes, but is not limited to: a residential gateway (Residential Gateway, RG), a user side equipment (Customer Premise Equipment, CPE), a personal computer (Personal Computer, PC), a voice over Internet Protocol (Voice over Internet Protocol, VoIP), Internet Protocol Television (IPTV), Set Top Box (STB), Integrated Access Device (IAD).
  • a residential gateway Residential Gateway, RG
  • a user side equipment Customer Premise Equipment, CPE
  • PC Personal Computer
  • VoIP Voice over Internet Protocol
  • IPTV Internet Protocol Television
  • STB Set Top Box
  • IAD Integrated Access Device
  • the switch point SF202 device is deployed behind the access network device 201, and a physical interface connecting the switch point device 202 to the access network device AN201 can be established between the above-mentioned switch point 202 device and the user plane. It can be divided into different sub-interfaces. Different sub-interfaces can match different VLANs or QinQs, and different sub-interfaces can correspond to different Layer 2 tunnels. Understandably, a VLAN interface is a sub-interface created under a physical interface.
  • the control plane CP can manage multiple forwarding planes, and can schedule users, traffic, and resources among the multiple forwarding planes.
  • the USF is the UP selection decision point and can be used to decide the UP gateway when the user goes online, or the UP gateway for dynamic migration after the user goes online.
  • the USF can be built into the CP, it can also be built into the SDN controller, or it can be a separate network element. That is, the USF may be a device with the CP, or the USF may be a device with the SDN controller, or the USF may be a device alone.
  • the embodiments of the present application do not impose any limitations.
  • FIG. 2B it is a schematic flowchart of a user broadband access provided by an embodiment of the present application. It can be seen from FIG. 2B that the user sends a network protocol (which may be PPPoE or DHCP) and other related control packets. information to complete dialing and access to the network, the specific process can be as follows:
  • a network protocol which may be PPPoE or DHCP
  • the user equipment sends the network protocol and other related control packet information to the SF, and then the SF sends the network protocol and other related control packet information to the first user plane UP. Then, the first UP may send the above-mentioned network protocol and other related control packet information to the control plane CP, and the CP sends the migration policy of the user on the first UP to the USF.
  • the USF After receiving the user migration policy sent by the CP, the USF can determine according to the user SLA that it should go online from the second UP to access the network. Therefore, the USF sends the CP to the CP that the target UP to be migrated is the second UP.
  • the USF notifies the The CP sends the user entry to the second UP; after the CP allocates the IP address in the IP pool in UP2 to the user equipment, the CP sends the user entry to the second UP; when the CP notifies the USF that the user entry has been After the item is delivered to the second UP, the USF notifies the SDN controller to configure the SF, and bind the VLAN or QinQ corresponding to the user to the interface corresponding to the second UP. So far, the user traffic is migrated from the first UP to the second UP, and subsequent packet forwarding of the user equipment can be directly forwarded to the second UP.
  • the user entry is used for the second UP to access the user to the network according to the user entry when the first UP fails.
  • vBNG-UP can be understood as a forwarding plane, and can also be understood as a user plane of a virtual broadband network gateway, or a user plane;
  • vBNG-CP can be understood as a control plane, or a user plane. It can be understood as a virtual broadband network gateway control plane.
  • the user equipment when the user equipment is disconnected due to a fault on the user plane, the user can only access the new UP by redialing after the disconnection, thereby restoring traffic.
  • the process of redialing to complete broadband access is cumbersome, the switching time is too long, and the user experience is poor.
  • the user plane faults include but are not limited to: interface faults on the user plane, interface board faults, or faults of the entire device where the user is located, and so on.
  • FIG. 3 is a schematic structural diagram of a broadband connection provided by an embodiment of the present application. It can be seen from FIG. 3 that when the user plane fails, the user's traffic is migrated from the faulty first user plane 305A to the second user plane 305B without being aware of the user equipment side.
  • the specific method includes at least the following steps:
  • step S1 the control plane 306 monitors the connection status with the first user plane 305A in real time.
  • the control plane can detect the connection with the first user plane. The connection state is disconnected, and it is sensed that the first user plane 305A is faulty.
  • Step S2 the control plane 306 queries the user plane selection decision point USF 307 to the target user plane to be migrated by the user affected by the failure of the first user plane 305A.
  • the USF 307 can decide the target user plane to be migrated when the first user plane 305A fails according to the load condition of each user plane, the SLA and other requirements.
  • Step S3 after the control plane 306 receives the message sent by the USF 306 that the target user plane is the second user plane 305B, the control plane 306 delivers the user entry to the second user plane 305B.
  • the user entry is information about the user accessing the network from the second user plane 305B, and may specifically include one or more of the following information: related information on the control plane 306, forwarding entries, dialing information of the user, MAC information, Two interface information of the user plane 305B, and so on.
  • the second user plane 305B of the user entry user accesses the network according to the user entry when the first user plane 305A fails.
  • Step S4 the USF 307 notifies the software-defined network SDN 308 to perform user traffic migration.
  • step S5 the SDN 308 controls the switching point SF304 to switch the traffic of the user equipment from the first user plane 305A to the second user plane 305B.
  • Step S6 the traffic of the user equipment is switched to the second user plane 305B for forwarding.
  • the user plane may include a virtual user plane vUP or a physical user plane pUP, which is not limited in this embodiment of the present application.
  • the first user plane may be the first physical user plane or the first virtual user plane.
  • the user plane mentioned in the embodiments of the present application may be the broadband network gateway user plane
  • the mentioned control plane may be the broadband network gateway control plane
  • FIG. 4 is a schematic flowchart of another broadband connection provided by an embodiment of the present application. Further, the method may be implemented based on the framework shown in FIG. 2A, and the method at least includes the following steps:
  • the USF After the user equipment accesses the network from the third user plane according to the schematic flowchart shown in FIG. 2B , and when the USF determines that it should access the network from the first user plane according to the SLA, it can migrate user traffic from the third user plane to the first user plane. User plane. Therefore, subsequent forwarding packets of the user equipment can be directly forwarded to the first user plane.
  • Step S401 the user plane selection decision point determines the second user plane.
  • the user plane selection decision point USF can decide the target vBNG-UP to be migrated when the user plane vBNG-UP of the first virtual broadband access gateway fails according to the load condition of each user plane, SLA and other requirements. Therefore, the USF can decide from the multiple vBNG-UPs that the target vBNG-UP is the second vBNG-UP under the condition of satisfying the requirements of load balancing, SLA, and improving network utilization.
  • Step S402 the user plane selection decision point sends first indication information to the control plane.
  • the USF may send first indication information to the virtual broadband access gateway control plane vBNG-CP, where the first indication information is used to indicate that the target vBNG-UP is the second vBNG-UP.
  • the target vBNG-UP to replace the first vBNG-UP in the event of a vBNG-UP failure is the information of the second vBNG-UP.
  • Step S403 the control plane acquires the user entry.
  • the vBNG-CP can generate the user entry of the second vBNG-UP in real time.
  • the user entry is the information that the second vBNG-UP accesses the network from the second vBNG-UP according to the user entry when the first vBNG-UP fails, and may specifically include one or more of the following information: Relevant information of the control plane 306, forwarding entries, dialing information of the user, MAC information, interface information of the second vBNG-UP, and so on.
  • the user table entry is used for the second vBNG-UP to maintain the broadband connection of the user in the event that the first vBNG-UP fails.
  • Step S404 the user plane selection decision point sends a first migration request to the software-defined network controller.
  • the USF determines that the target vBNG-UP is the second vBNG-UP
  • the USF sends a request to the software-defined network SDN controller to migrate user traffic from the first vBNG-UP in the event of a vBNG-UP failure Information to the second vBNG-UP.
  • Step S405 the software-defined network controller sends the path information of the second user plane to the switching point.
  • the SDN controller After the SDN controller receives the first migration request from the USF, the SDN controller knows that the target vBNG-UP is the second vBNG-UP, and the SDN controller sends the path information of the second vBNG-UP to the switch point SF, So that when the first vBNG-UP fails, the SF can quickly switch the traffic of the affected users to the second vBNG-UP.
  • Step S406 Acquire fault information of the first user plane.
  • the SF and the vBNG-CP can detect the connection status with the first vBNG-UP in real time.
  • the The CP can detect that the connection state with the first vBNG-UP is disconnected, and the SF and the vBNG-CP can acquire fault information of disconnection from the first vBNG-UP.
  • the SF may send the fault information of the first user plane to the vBNG-CP, so that the vBNG-CP knows that the first vBNG-UP is faulty .
  • the vBNG-CP may send the fault information of the first user plane to the SF, so that the SF knows that the first vBNG-UP is faulty .
  • the failure condition of the first vBNG-UP may be an interface failure of the first vBNG-UP, a failure of a wiring board, or a failure of the whole machine, and the like.
  • Step S407 the switching point migrates user traffic from the first user plane to the second user plane.
  • the SF when it obtains the fault information of the first vBNG-UP, it can bind the virtual local area network VLAN or double-layer virtual local area network QinQ corresponding to the user to the first vBNG-UP according to the path information of the second user plane sent by the SDN controller.
  • the interface corresponding to the second vBNG-UP completes the migration of user traffic from the first vBNG-UP to the second vBNG-UP.
  • Step S408 the control sends the user entry to the second user plane.
  • the user plane entry generated in advance may be sent to the second vBNG-UP.
  • the target vBNG-UP to replace the first vBNG-UP is the second vBNG-UP when the first vBNG-UP is planned in advance by the USF
  • the SF and the vBNG-CP perceive the first vBNG-UP transmission failure
  • the SF can quickly migrate user traffic on the first vBNG-UP to the second vBNG-UP, and the vBNG-CP can quickly send user entries to the second vBNG-UP. So far, when the first vBNG-UP fails, it is possible to quickly switch to the second vBNG-UP, so as to access the network through the second vBNG-UP.
  • FIG. 5 is a schematic flowchart of another broadband connection provided by an embodiment of the present application. Further, the method may be implemented based on the framework shown in FIG. 2A, and the method at least includes the following steps:
  • the USF After the user equipment accesses the network from the third user plane according to the schematic flowchart shown in FIG. 2B , and when the USF determines that it should access the network from the first user plane according to the SLA, it can migrate user traffic from the third user plane to the first user plane. User plane. Therefore, subsequent forwarding packets of the user equipment can be directly forwarded to the first user plane.
  • Step S501 the user plane selection decision point determines the second user plane.
  • step S401 which will not be repeated here.
  • Step S502 the user plane selection decision point sends first indication information to the control plane.
  • step S402 which will not be repeated here.
  • Step S503 the user plane selection decision point sends a first migration request to the software-defined network controller.
  • step S404 which will not be repeated here.
  • Step S504 the software-defined network controller sends the path information of the second user plane to the switching point.
  • the SDN may receive the first migration request sent from the USF, wherein the detailed description may refer to step S405, which will not be repeated here.
  • Step S505 the switch point acquires fault information of the first user plane.
  • the SF can detect the connection status with the first vBNG-UP in real time.
  • the SF can detect the connection with the first vBNG-UP. If the connection status is disconnected, the SF can obtain the failure information of disconnection from the first vBNG-UP.
  • the fault may be an interface fault of the first vBNG-UP, a wiring board fault, or a complete machine fault, and the like.
  • Step S506 the switching point migrates the user traffic of the first user plane to the second user plane.
  • step S407 which will not be repeated here.
  • Step S507 the user equipment sends a data packet to the second user plane.
  • the user equipment may send a data packet to the second user plane.
  • Step S508 the second user sends a notification message to the control plane.
  • the vBNG-CP may send a message to the vBNG-CP for instructing the vBNG-CP to send the user entry to the second vBNG-UP.
  • Step S509 the control sends the user entry to the second user plane.
  • the vBNG-CP may send the user plane table to the second vBNG-UP item.
  • the SF when the USF plans in advance that the first vBNG-UP fails and the target vBNG-UP to replace the first vBNG-UP is the second vBNG-UP, when the SF detects that the first vBNG-UP fails, the SF can quickly Migrate the user traffic on the first vBNG-UP to the second vBNG-UP.
  • the vBNG-CP can send the user entry to the second vBNG-UP. 2.
  • vBNG-UP So far, when the first vBNG-UP fails, it can be quickly switched to the second vBNG-UP, so that the network can be accessed through the second vBNG-UP.
  • FIG. 6 is a schematic flowchart of a broadband connection provided by an embodiment of the present application. Further, the method may be implemented based on the framework shown in FIG. 2A, and the method at least includes the following steps:
  • the USF After the user equipment accesses the network from the third user plane according to the schematic flowchart shown in FIG. 2B , and when the USF determines that it should access the network from the first user plane according to the SLA, it can migrate user traffic from the third user plane to the first user plane. User plane. Therefore, subsequent forwarding packets of the user equipment can be directly forwarded to the first user plane.
  • Step S601 The control plane acquires fault information of the first user plane.
  • the virtual broadband access gateway control plane vBNG-CP can detect the connection status with the first virtual broadband access gateway user plane vBNG-UP in real time. After the connection of the first vBNG-CP is disconnected, the vBNG-CP can detect that the connection state with the first vBNG-UP is disconnected, and then the vBNG-CP can obtain the failure information of the disconnection from the first vBNG-UP.
  • Step S602 the control sends a first notification message to the user plane selection decision point.
  • the vBNG-CP may send a notification message for notifying the failure of the first vBNG-UP to the user plane selection decision point USF.
  • Step S603 the user plane selection decision point sends first indication information to the control plane.
  • the USF can decide to replace the first vBNG according to the load conditions of each user plane, SLA and other requirements.
  • -UP target vBNG-UP For example, if the user equipment needs a higher-level SLA service, a user plane that meets the requirements can be determined for the user equipment according to the SLA level of each user plane. Therefore, the USF can decide from multiple vBNG-UPs that the target vBNG-UP is the second vBNG-UP under the condition of satisfying the requirements of load balancing, SLA, and improving network utilization. Therefore, the USF may send indication information to the vBNG-CP that the target user plane for replacing the faulty first vBNG-UP is the second vBNG-UP.
  • Step S604 the control sends the user entry to the second user plane.
  • the vBNG-CP can know that the target user plane used to replace the first vBNG-UP is the second vBNG-UP, and the vBNG-CP can An indication message sends the user entry to the second vBNG-UP.
  • Step S605 the control sends a notification message of successful user entry migration to the user plane selection decision point.
  • the vBNG-CP sends a second notification message to the USF indicating that the user entry has been migrated successfully.
  • the second notification message is used to indicate that the vBNG-CP has sent the
  • the second vBNG-UP sends the user entry, and the notification message is used by the USF to trigger the software-defined network SDN controller to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • Step S606 the user plane selection decision point sends a first migration request to the software-defined network controller.
  • the USF sends the information for requesting migration of user traffic from the first vBNG-UP to the second vBNG-UP to the SDN controller .
  • Step S607 the software-defined network controller controls the switching point to migrate user traffic from the first user plane to the second user plane.
  • the SDN controller controls the SF to bind the virtual local area network VLAN or double-layer virtual local area network QinQ corresponding to the user to the interface corresponding to the second vBNG-UP, which can Migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the user plane device can access the network through the second user plane, thereby forwarding the data packet.
  • FIG. 7 is a schematic flowchart of another broadband connection provided by an embodiment of the present application. Further, the method may be implemented based on the framework shown in FIG. 2A, and the method at least includes the following steps:
  • the user equipment accesses the network from the third user plane according to the flowchart shown in FIG. 2B , and when the USF determines that it should access the network from the first user plane according to the SLA, the user traffic can be migrated from the third user plane to the first user plane. User plane. Therefore, subsequent forwarding packets of the user equipment can be directly forwarded to the first user plane.
  • Step S701 The software-defined network controller acquires fault information of the first user plane.
  • the software-defined network SDN controller can detect the connection status with the first virtual broadband access gateway user plane vBNG-UP in real time, and when the first vBNG-UP is disconnected from the SDN controller due to a failure Afterwards, the SDN controller may detect that the connection state with the first vBNG-UP is disconnected, and the SDN controller may acquire fault information of disconnection from the first vBNG-UP.
  • Step S702 the software-defined network controller sends a first notification message to the user plane selection decision point.
  • the SDN controller may send a notification message for notifying the failure of the first vBNG-UP to the user plane selection decision point USF.
  • Step S703 the user plane selection decision point sends first indication information to the control plane.
  • step S603 After the user plane selection decision point USF receives the notification message about the failure of the first vBNG-UP from the SDN controller, the detailed description can refer to step S603, which is not repeated here.
  • Step S704 the control sends the user entry to the second user plane.
  • step S604 which will not be repeated here.
  • Step S705 the control sends a notification message of successful user entry migration to the user plane selection decision point.
  • step S605 which will not be repeated here.
  • Step S706 the user plane selection decision point sends a first migration request to the software-defined network controller.
  • step S606 which will not be repeated here.
  • Step S707 the software-defined network controller controls the switching point to migrate user traffic from the first user plane to the second user plane.
  • step S607 which will not be repeated here.
  • the user plane device can access the network through the second user plane, thereby forwarding the data packet.
  • FIG. 8 is a schematic flowchart of a broadband connection provided by an embodiment of the present application. Further, the method may be implemented based on the framework shown in FIG. 2A, and the method includes at least the following steps:
  • the USF After the user equipment accesses the network from the third user plane according to the schematic flowchart shown in FIG. 2B , and when the USF determines that it should access the network from the first user plane according to the SLA, it can migrate user traffic from the third user plane to the first user plane. User plane. Therefore, subsequent forwarding packets of the user equipment can be directly forwarded to the first user plane.
  • Step S801 The control plane acquires fault information of the first user plane.
  • step 601 which will not be repeated here.
  • Step S802 the control sends a first notification message to the user plane selection decision point.
  • step 602 Specifically, for a detailed description, reference may be made to step 602, which will not be repeated here.
  • Step S803 the user plane selection decision point sends first indication information to the control plane.
  • step 603 in the detailed description, and details are not repeated here.
  • Step S804 the control sends the user entry to the second user plane.
  • step 604 Specifically, for a detailed description, reference may be made to step 604, which will not be repeated here.
  • Step S805 the control sends a first migration request to the software-defined network controller.
  • the vBNG-CP sends information to the SDN controller for requesting to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • Step S806 the software-defined network controller controls the switching point to migrate user traffic from the first user plane to the second user plane.
  • the SDN controller controls the SF to bind the virtual local area network VLAN or double-layer virtual local area network QinQ corresponding to the user to the interface corresponding to the second vBNG-UP, This can migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the user plane device can access the network through the second user plane, thereby forwarding the data packet.
  • FIG. 9 is a schematic flowchart of another broadband connection provided by an embodiment of the present application. Further, the method may be implemented based on the framework shown in FIG. 2A, and the method at least includes the following steps:
  • the user equipment accesses the network from the third user plane according to the flowchart shown in FIG. 2B , and when the USF determines that it should access the network from the first user plane according to the SLA, the user traffic can be migrated from the third user plane to the first user plane. User plane. Therefore, subsequent forwarding packets of the user equipment can be directly forwarded to the first user plane.
  • Step S901 The software-defined network controller acquires fault information of the first user plane.
  • step 701 which will not be repeated here.
  • Step S902 the software-defined network controller sends a first notification message to the user plane selection decision point.
  • step 702 Specifically, for a detailed description, reference may be made to step 702, which will not be repeated here.
  • Step S903 the user plane selection decision point sends first indication information to the control plane.
  • step S603 which will not be repeated here.
  • Step S904 the control sends the user entry to the second user plane.
  • step S604 which will not be repeated here.
  • Step S905 the control sends a first migration request to the software-defined network controller.
  • step S805 which will not be repeated here.
  • Step S906 the software-defined network controller controls the switching point to migrate user traffic from the first user plane to the second user plane.
  • step S806 which will not be repeated here.
  • the user plane device can access the network through the second user plane, thereby forwarding the data packet.
  • the USF can be built in the CP, can also be built in the SDN controller, or can be a separate network element. That is, the USF may be a device with the CP, or the USF may be a device with the SDN controller, or the USF may be a device alone.
  • the embodiments of the present application do not impose any limitations.
  • the determination by the USF of the user plane vBNG-UP of the second virtual broadband access gateway may be regarded as the determination of the user plane vBNG-UP of the second virtual broadband access gateway by the CP.
  • the determination by the USF of the user plane vBNG-UP of the second virtual broadband access gateway may be regarded as the SDN controller determining the user plane vBNG-UP of the second virtual broadband access gateway.
  • FIG. 10 is a schematic structural diagram of a virtual broadband access gateway control plane apparatus 100 provided by an embodiment of the present application.
  • the apparatus 100 may be a node, or may be a device in a node, such as a chip or an integrated circuit etc., the apparatus 100 may include a receiving unit 1001 and a processing unit 1002 .
  • the virtual broadband access gateway control plane device 100 is configured to implement the aforementioned method for maintaining an uninterrupted broadband connection, for example, the method for maintaining an uninterrupted broadband connection in any one of the embodiments shown in FIG. 4 to FIG. 9 .
  • the division of multiple units or modules is only a logical division based on functions, and is not a limitation on the specific structure of the apparatus.
  • some of the functional modules may be subdivided into more finer functional modules, and some functional modules may also be combined into one functional module, but no matter whether these functional modules are subdivided or combined, the device 100 maintains a wide bandwidth
  • the general flow that is performed during an uninterrupted connection is the same.
  • the receiving unit 1001 and the processing unit 1002 of the above-mentioned apparatus 100 may also be combined into a communication unit.
  • each unit corresponds to its own program code (or program instruction), and when the program code corresponding to each of these units runs on the processor, the unit executes the corresponding process to realize the corresponding function.
  • the virtual broadband access gateway control plane apparatus 100 may be the vBNG-CP in the embodiments shown in FIG. 4 to FIG. 10 .
  • the description of each unit is as follows:
  • the receiving unit 1001 may be configured to receive first indication information from the user plane selection decision point USF, where the first indication information is used to indicate that the first vBNG-UP is replaced in the case of a user plane vBNG-UP failure of the first virtual broadband access gateway.
  • the second vBNG-UP of the UP please refer to step S403 in the embodiment shown in FIG. 4 , the detailed description of step S508 in the embodiment shown in FIG. 5 , and the detailed description of step S603 in the embodiment shown in FIG. 6 , which will not be repeated here.
  • the processing unit 1002 can be configured to send a user entry to a second vBNG-UP according to the first indication information, wherein the user entry is used for the second vBNG-UP to The user entry connects the user to the network.
  • a user entry to a second vBNG-UP according to the first indication information, wherein the user entry is used for the second vBNG-UP to The user entry connects the user to the network.
  • step S408 in the embodiment shown in FIG. 4 and step S509 in the embodiment shown in FIG. 5 which will not be repeated here.
  • the vBNG-CP can obtain in advance the target user plane (the second vBNG-UP) to which the users affected by the failure of the first user plane need to be migrated, so the vBNG-CP can send the user entry to the second vBNG in advance -UP, in this way, when the first user plane fails, the time for sending user entries to the second vBNG-UP can be saved, and the speed of switching user traffic from the first vBNG-UP to the second vBNG-UP can be improved.
  • the receiving unit 1001 before the receiving unit 1001 is configured to receive the first indication information from the user plane selection decision point USF, the receiving unit 1001 may also be configured to obtain the fault information of the first vBNG-UP; the specific implementation For the method, please refer to the detailed description of step S601 in the embodiment shown in FIG. 6 and the detailed description of step S801 in the embodiment shown in FIG. 8 , which will not be repeated here.
  • the apparatus 100 may further include a sending unit 1003, configured to send first notification information to the USF, where the first notification information is used to notify the first vBNG-UP failure.
  • step S602 in the embodiment shown in FIG. 6 and the detailed description of step S802 in the embodiment shown in FIG. 8 , and details are not repeated here.
  • the processing unit 1002 is configured to send the user entry to the second vBNG-UP according to the first indication information Afterwards, the receiving unit 1001 can also be used to acquire the fault information of the first vBNG-UP.
  • the processing unit 1002 is configured to send the user entry to the second vBNG-UP according to the first indication information Afterwards, the receiving unit 1001 can also be used to acquire the fault information of the first vBNG-UP.
  • the processing unit 1002 is configured to send the user entry to the second vBNG-UP according to the first indication information before, the receiving unit 1001 is further configured to receive a notification message sent by the second vBNG-UP after user traffic migrates from the first vBNG-UP to the second vBNG-UP, where the notification message is used to instruct the vBNG-CP to send the second vBNG-UP to the second vBNG-UP.
  • UP sends user entries.
  • step S508 in the embodiment shown in FIG. 5 , which will not be repeated here.
  • the apparatus 100 further includes a sending unit 1003, which is further configured to send the software-defined network SDN controller to the software-defined network SDN controller.
  • a first migration request is sent, where the first migration request is used to request to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the apparatus 100 further includes a sending unit 1003, which is further configured to send the user entry migration to the USF
  • a successful notification message is used by the USF to trigger the SDN controller to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • each unit may also correspond to the corresponding descriptions of the method embodiments shown in FIG. 4 to FIG. 10 .
  • FIG. 11 is a schematic structural diagram of a software-defined network controller device 110 provided by an embodiment of the present application.
  • the device 110 may be a node, or may be a device in a node, such as a chip or an integrated circuit, etc.
  • the apparatus 110 may include a receiving unit 1101 and a processing unit 1102 .
  • the apparatus 110 for maintaining an uninterrupted broadband connection is used to implement the aforementioned method for maintaining an uninterrupted broadband connection, for example, the method for maintaining an uninterrupted broadband connection in any one of the embodiments shown in FIG. 4 to FIG. 10 .
  • the division of multiple units or modules is only a logical division based on functions, and is not intended to limit the specific structure of the apparatus.
  • some of the functional modules may be subdivided into more finer functional modules, and some functional modules may also be combined into one functional module, but no matter whether these functional modules are subdivided or combined, the device 110 maintains a wide bandwidth
  • the general flow that is performed during an uninterrupted connection is the same.
  • the receiving unit 1101 and the processing unit 1102 of the above-mentioned apparatus 110 may also be combined into a communication unit.
  • each unit corresponds to its own program code (or program instruction), and when the program code corresponding to each of these units runs on the processor, the unit executes the corresponding process to realize the corresponding function.
  • the apparatus 110 for keeping the broadband connection uninterrupted may be the SDN controller in the embodiments shown in FIG. 4 to FIG. 10 , wherein the description of each unit is as follows:
  • a receiving unit 1101 configured to receive a first migration request, where the first migration request is used to request to migrate user traffic from the first vBNG-UP to the second vBNG-UP in the case of a failure of the first vBNG-UP; specific implementation Please refer to step S405 in the embodiment shown in FIG. 4 , step S504 in the embodiment shown in FIG. 5 , and the detailed description of step S607 in the embodiment shown in FIG. 6 , and the detailed description of step S707 in the embodiment shown in FIG. 7 . The description and the detailed description of step S807 in the embodiment shown in FIG. 8 are not repeated here.
  • the processing unit 1102 is configured to control the switching point SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • step S607 in the embodiment shown in FIG. 6 , which will not be repeated here.
  • the SDN controller can migrate user traffic from the first vBNG-UP to the second vBNG-UP in the case of the first vBNG-UP failure, which ensures that the user does not perceive the first vBNG-UP failure and keeps the The user's broadband connection is not interrupted, which improves the user's satisfaction.
  • the receiving unit 1101 is configured to obtain the fault information of the user plane vBNG-UP of the first virtual broadband access gateway before receiving the first migration request; for the specific implementation, please refer to The detailed description of step S601 in the embodiment shown in FIG. 6 and the detailed description of step S801 in the embodiment shown in FIG. 8 will not be repeated here.
  • the apparatus 110 further includes a sending unit 1103, configured to send first notification information to the user plane selection decision point USF, where the first notification information is used to notify the failure of the first vBNG-UP.
  • a sending unit 1103 configured to send first notification information to the user plane selection decision point USF, where the first notification information is used to notify the failure of the first vBNG-UP.
  • the receiving unit 1101 is specifically configured to receive the first migration request from the vBNG-CP.
  • the receiving unit 1101 is specifically configured to receive the first migration request from the vBNG-CP.
  • the receiving unit 1101 is specifically configured to receive a first migration request from the USF.
  • a first migration request from the USF.
  • the processing unit 1102 is specifically configured to send the path information of the second vBNG-UP to the SF to control the switching point SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP, and the path The information is used by the SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the processing unit 1102 is specifically configured to send the path information of the second vBNG-UP to the SF to control the switching point SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP, and the path The information is used by the SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the processing unit 1102 is specifically configured to control the SF to bind the virtual local area network VLAN corresponding to the user or the double-layer virtual local area network QinQ to the interface corresponding to the second vBNG-UP, so as to transfer the user traffic from The first vBNG-UP is migrated to the second vBNG-UP.
  • step S607 in the embodiment shown in FIG. 6 and the detailed description of step S707 in the embodiment shown in FIG. 7 which will not be repeated here.
  • each unit may also correspond to the corresponding descriptions of the method embodiments shown in FIG. 4 to FIG. 10 .
  • FIG. 12 is a schematic structural diagram of a user plane selection decision point device 120 provided by an embodiment of the present application.
  • the device 120 may be a node or a device in a node, such as a chip or an integrated circuit, etc.
  • the apparatus 120 may include a processing unit 1201 and a sending unit 1202 .
  • the apparatus 120 for maintaining an uninterrupted broadband connection is used to implement the aforementioned method for maintaining an uninterrupted broadband connection, for example, the method for maintaining an uninterrupted broadband connection in any one of the embodiments shown in FIG. 4 to FIG. 10 .
  • the division of multiple units or modules is only a logical division based on functions, and is not a limitation on the specific structure of the apparatus.
  • some of the functional modules may be subdivided into more finer functional modules, and some functional modules may also be combined into one functional module, but no matter whether these functional modules are subdivided or combined, the device 120 maintains the broadband
  • the general flow that is performed during an uninterrupted connection is the same.
  • each unit corresponds to its own program code (or program instruction), and when the program code corresponding to each of these units runs on the processor, the unit executes the corresponding process to realize the corresponding function.
  • the user plane selection decision point apparatus 120 may be the USF in the embodiments shown in FIG. 4 to FIG. 10 , wherein the descriptions of each unit are as follows:
  • the processing unit 1201 is configured to determine a second virtual broadband access gateway user plane vBNG-UP, where the second vBNG-UP is a vBNG used to replace the first vBNG-UP to access users to the network after the first vBNG-UP fails -UP; for a specific implementation, please refer to step S401 in the embodiment shown in FIG. 4 and the detailed description of step S501 in the embodiment shown in FIG. 5 , which will not be repeated here.
  • the sending unit 1202 is configured to send first indication information to the virtual broadband access gateway control plane vBNG-CP, where the first indication information is used to indicate that in the case of a failure of the first virtual broadband access gateway user plane vBNG-UP to replace the first The second vBNG-UP of the vBNG-UP.
  • the first indication information is used to indicate that in the case of a failure of the first virtual broadband access gateway user plane vBNG-UP to replace the first The second vBNG-UP of the vBNG-UP.
  • step S402 in the embodiment shown in FIG. 4 the detailed description of step S502 in the embodiment shown in FIG. 5
  • the detailed description of step S603 in the embodiment shown in FIG. 6 the detailed description of step S603 in the embodiment shown in FIG.
  • the detailed description of step S703 in the embodiment, the detailed description of step S803 in the embodiment shown in FIG. 8 , and the detailed description of step S903 in the embodiment shown in FIG. 9 will not be repeated here.
  • the USF can decide the target user plane that satisfies load balancing according to various requirements, so that the target user plane (second vBNG-UP) can be used to replace the faulty vBNG-UP when the first vBNG-UP fails. .
  • the utilization rate and efficiency of the network are improved, and the user satisfaction is improved.
  • the processing unit 1201 before the processing unit 1201 is configured to determine the user plane vBNG-UP of the second virtual broadband access gateway, the processing unit 1201 further includes: a receiving unit 1203, configured to receive a first notification message, the first notification message using to notify the first vBNG-UP failure.
  • a receiving unit 1203 configured to receive a first notification message, the first notification message using to notify the first vBNG-UP failure.
  • the sending unit 1202 is further configured to send the first migration request to the software-defined network SDN controller,
  • the first migration request is used to request migration of user traffic from the first vBNG-UP to the second vBNG-UP in the case of a failure of the first vBNG-UP.
  • step S404 in the embodiment shown in FIG. 4 and the detailed description of step S503 in the embodiment shown in FIG. 5 , which will not be repeated here.
  • the receiving unit 1203 is further configured to receive a second notification message from the vBNG-CP, where the second notification message is used for Indicates that the vBNG-CP has sent the user entry to the second vBNG-UP; for the specific implementation, please refer to step S605 in the embodiment shown in FIG. 6 and the detailed description of step S705 in the embodiment shown in FIG. 7 , which will not be repeated here. .
  • the sending unit 1202 is further configured to send a first migration request to the SDN controller according to the second notification message, where the first migration request is used by the SDN controller to migrate user traffic from the first vBNG-UP to the second vBNG-UP; wherein,
  • the user entry is information of the user accessing the network from the second vBNG-UP, and the user entry is used for the second vBNG-UP to maintain the broadband connection of the user in the event of the failure of the first vBNG-UP.
  • step S606 in the embodiment shown in FIG. 6 and the detailed description of step S706 in the embodiment shown in FIG. 7 , which will not be repeated here.
  • the receiving unit 1203 is specifically configured to receive the first notification message from the vBNG-CP.
  • the receiving unit 1203 is specifically configured to receive the first notification message from the vBNG-CP.
  • the receiving unit 1203 is specifically configured to receive the first notification message from the SDN controller.
  • the receiving unit 1203 please refer to step S703 in the embodiment shown in FIG. 7 , and the detailed description of step S903 in the embodiment shown in FIG. 9 , which will not be repeated here.
  • the processing unit 1201 is specifically configured to determine the second vBNG-UP from the plurality of vBNG-UPs according to the service level agreement SLA.
  • SLA service level agreement
  • each unit may also correspond to the corresponding descriptions of the method embodiments shown in FIG. 4 to FIG. 10 .
  • FIG. 13 is a schematic structural diagram of a switching point device 130 provided by an embodiment of the present application.
  • the device 130 may be a node, or may be a device in a node, such as a chip or an integrated circuit, and the device 130 It may include a receiving unit 1301 , an obtaining unit 1302 and a processing unit 1303 .
  • the apparatus 130 for maintaining an uninterrupted broadband connection is used to implement the aforementioned method for maintaining an uninterrupted broadband connection, for example, the method for maintaining an uninterrupted broadband connection in any one of the embodiments shown in FIG. 4 to FIG. 10 .
  • the division of multiple units or modules is only a logical division based on functions, and is not a limitation on the specific structure of the apparatus.
  • some of the functional modules may be subdivided into more finer functional modules, and some functional modules may also be combined into one functional module, but no matter whether these functional modules are subdivided or combined, the device 130 maintains a wide bandwidth
  • the general flow that is performed during an uninterrupted connection is the same.
  • each unit corresponds to its own program code (or program instruction), and when the program code corresponding to each of these units runs on the processor, the unit executes the corresponding process to realize the corresponding function.
  • the apparatus 130 for keeping the broadband connection uninterrupted may be the SF in the embodiments shown in FIG. 4 to FIG. 10 , wherein the description of each unit is as follows:
  • the receiving unit 1301 is configured to receive path information sent by the SDN controller, where the path information is used to indicate that user traffic is migrated from the first vBNG-UP to the first virtual broadband access gateway user plane vBNG-UP in the event of a failure.
  • the second vBNG-UP please refer to the detailed description of step S405 in the embodiment shown in FIG. 4 and the detailed description of step S705 in the embodiment shown in FIG. 7 , which will not be repeated here.
  • the obtaining unit 1302 is configured to obtain the fault information of the first vBNG-UP; for the specific implementation, please refer to the detailed description of step S406 in the embodiment shown in FIG. 4 and the detailed description of step S706 in the embodiment shown in FIG. Repeat.
  • the processing unit 1303 is configured to migrate user traffic from the first vBNG-UP to the second vBNG-UP according to the path information.
  • step S404 in the embodiment shown in FIG. 4
  • step S704 in the embodiment shown in FIG. 7 , which will not be repeated here.
  • the SF can monitor the connection status with the first vBNG-UP in real time, so that the failure of the first vBNG-UP can be sensed in real time.
  • One vBNG-UP is migrated to the target user plane (second vBNG-UP). The traffic migration is completed without the user sensing the failure of the first vBNG-UP, which improves the user experience.
  • the processing unit 1303 is specifically configured to bind the virtual local area network VLAN corresponding to the user or the double-layer virtual local area network QinQ to the interface corresponding to the second vBNG-UP according to the path information to complete the transfer of user traffic from The first vBNG-UP is migrated to the second vBNG-UP.
  • step S607 in the embodiment shown in FIG. 6
  • step S806 in the embodiment shown in FIG. 8
  • step S906 in the embodiment shown in FIG. 9 , which will not be repeated here. .
  • each unit may also correspond to the corresponding descriptions of the method embodiments shown in FIG. 4 to FIG. 10 .
  • FIG. 14 is a schematic diagram of a broadband connection system 140 provided by an embodiment of the present application.
  • the system 140 includes a virtual broadband access gateway control plane vBNG-CP device 1401 and a user plane selection decision point USF device 1402, wherein each The system units are described as follows:
  • the USF apparatus is configured to send first indication information to the vBNG-CP apparatus, where the first indication information is used to indicate a second vBNG that replaces the first vBNG-UP in the case of a failure of the user plane vBNG-UP of the first virtual broadband access gateway -UP.
  • the first indication information is used to indicate a second vBNG that replaces the first vBNG-UP in the case of a failure of the user plane vBNG-UP of the first virtual broadband access gateway -UP.
  • the vBNG-CP device is configured to send a user entry to a second vBNG-UP according to the first indication information, wherein the user entry is used for the second vBNG-UP to The user entry connects the user to the network.
  • a specific implementation manner please refer to the detailed description of step S408 in the embodiment shown in FIG. 4 and step S509 in the embodiment shown in FIG. 5 , which will not be repeated here.
  • system further includes:
  • a software-defined network SDN controller device 1403, configured to receive a first migration request, where the first migration request is used to request to migrate user traffic from the first vBNG-UP to the second vBNG in the event of a failure of the first vBNG-UP -up;
  • the switch point SF device 1404 is configured to migrate user traffic from the first vBNG-UP to the second vBNG-UP according to the path information, wherein the path information is used to indicate the failure of the vBNG-UP on the user plane of the first virtual broadband access gateway Migrate user traffic from the first vBNG-UP to the second vBNG-UP without
  • the vBNG-CP device is also used to obtain the fault information of the first vBNG-UP; please refer to FIG. 4 for a specific implementation manner
  • the detailed description of step S402 in the embodiment shown in FIG. 5 and step S502 in the embodiment shown in FIG. 5 will not be repeated here.
  • the vBNG-CP device is further configured to send first notification information to the USF, where the first notification information is used to notify the failure of the first vBNG-UP.
  • first notification information is used to notify the failure of the first vBNG-UP.
  • the vBNG-CP apparatus is used to send the user entry to the second vBNG-UP according to the first indication information
  • the CP device is further configured to acquire fault information of the first vBNG-UP.
  • the vBNG-CP apparatus is used to send the user entry to the second vBNG-UP according to the first indication information
  • the CP device is further configured to receive a notification message sent by the second vBNG-UP after user traffic migrates from the first vBNG-UP to the second vBNG-UP, where the notification message is used to instruct the vBNG-CP to send the user to the second vBNG-UP table entry.
  • step S508 in the embodiment shown in FIG. 5 which will not be repeated here.
  • the vBNG-CP device is further configured to send the first A migration request, where the first migration request is used to request to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the first migration request is used to request to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the vBNG-CP device is further configured to send a notification of successful user entry migration to the USF message, the notification message is used by the USF to trigger the SDN controller to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the notification message is used by the USF to trigger the SDN controller to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the USF device is further configured to determine the user plane vBNG-UP of the second virtual broadband access gateway.
  • step S401 in the embodiment shown in FIG. 4 and the detailed description of step S501 in the embodiment shown in FIG. 5 , which will not be repeated here.
  • the USF device before the USF device is used to determine the user plane vBNG-UP of the second virtual broadband access gateway, the USF device is further configured to receive a first notification message, where the first notification message is used to notify the first vBNG-UP UP failure.
  • the first notification message is used to notify the first vBNG-UP UP failure.
  • the USF device is further configured to send a first migration request to the software-defined network SDN controller, where the first migration request Used to request migration of user traffic from the first vBNG-UP to the second vBNG-UP in the event of a failure of the first vBNG-UP.
  • the first migration request Used to request migration of user traffic from the first vBNG-UP to the second vBNG-UP in the event of a failure of the first vBNG-UP.
  • the USF device is further configured to receive a second notification message from the vBNG-CP, and the second notification message is used for Indicates that the vBNG-CP has sent the user entry to the second vBNG-UP; for the specific implementation, please refer to step S602 in the embodiment shown in FIG. 6 and the detailed description of step S802 in the embodiment shown in FIG. 8 , which will not be repeated here. .
  • the USF device is further configured to send the first migration request to the SDN controller according to the second notification message.
  • the first migration request is used by the SDN controller to migrate user traffic from the first vBNG-UP to the second vBNG-UP; the user entry is information about the user accessing the network from the second vBNG-UP, and the user entry is used for
  • the second vBNG-UP maintains the user's broadband connection in the event of the failure of the first vBNG-UP.
  • step S606 in the embodiment shown in FIG. 6 , which will not be repeated here.
  • the USF apparatus is specifically configured to determine the second vBNG-UP from multiple vBNG-UPs according to the service level agreement SLA.
  • SLA service level agreement
  • the SDN controller before the SDN controller is configured to receive the first migration request, the SDN controller is further configured to acquire fault information of the user plane vBNG-UP of the first virtual broadband access gateway;
  • the SDN controller is further configured to send first notification information to the USF, where the first notification information is used to notify the failure of the first vBNG-UP.
  • first notification information is used to notify the failure of the first vBNG-UP.
  • the SDN controller is further configured to control the switch point SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the switch point SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the SDN controller is specifically configured to send the path information of the second vBNG-UP to the SF to control the switching point SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP, and the path information Used by SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the SDN controller is specifically configured to send the path information of the second vBNG-UP to the SF to control the switching point SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP, and the path information Used by SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the SDN controller is specifically configured to control the SF to bind the virtual local area network VLAN corresponding to the user or the double-layer virtual local area network QinQ to the interface corresponding to the second vBNG-UP, so as to transfer user traffic from the first virtual local area network to the first vBNG-UP.
  • the vBNG-UP is migrated to the second vBNG-UP.
  • the SF is further configured to receive path information sent by the SDN controller.
  • path information sent by the SDN controller please refer to the detailed description of step S405 in the embodiment shown in FIG. 4 and the detailed description of step S705 in the embodiment shown in FIG. 7 , which will not be repeated here.
  • the SF is further used to acquire fault information of the first vBNG-UP.
  • step S406 in the embodiment shown in FIG. 4 please refer to the detailed description of step S406 in the embodiment shown in FIG. 4 and the detailed description of step S706 in the embodiment shown in FIG. 7 , which will not be repeated here.
  • the SF is specifically used to bind the virtual local area network VLAN corresponding to the user or the double-layer virtual local area network QinQ to the interface corresponding to the second vBNG-UP according to the path information to complete the transfer of user traffic from the first vBNG-UP UP is migrated to the second vBNG-UP.
  • step S607 in the embodiment shown in FIG. 6
  • step S806 in the embodiment shown in FIG. 8
  • step S906 in the embodiment shown in FIG. 9 , which will not be repeated here. .
  • FIG. 15 is a schematic structural diagram of an electronic device 150 provided by an embodiment of the present application.
  • the device 150 may be a node or a device in a node, such as a chip or an integrated circuit.
  • the device 150 may include at least one memory 1501 and at least one processor 1502 .
  • a bus 1503 may also be included.
  • a communication interface 1504 may also be included, wherein the memory 1501 , the processor 1502 and the communication interface 1504 are connected through a bus 1503 .
  • the memory 1501 is used to provide a storage space, and the storage space can store data such as an operating system and a computer program.
  • the memory 1501 may be random access memory (RAM), read-only memory (ROM), erasable programmable read only memory (EPROM), or portable read-only memory One or more combinations of memory (compact disc read-only memory, CD-ROM), etc.
  • the processor 1502 is a module that performs arithmetic operations and/or logical operations, and can specifically be a central processing unit (CPU), a graphics processing unit (GPU), a microprocessor (microprocessor unit, MPU), One or more of processing modules such as Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA), and Complex Programmable Logic Device (CPLD) The combination.
  • CPU central processing unit
  • GPU graphics processing unit
  • MPU microprocessor
  • ASIC Application Specific Integrated Circuit
  • FPGA Field Programmable Gate Array
  • CPLD Complex Programmable Logic Device
  • the communication interface 1504 is used to receive and/or send data to the outside, and may be a wired link interface such as an Ethernet cable, or a wireless link (Wi-Fi, Bluetooth, general wireless transmission, etc.) interface.
  • the communication interface 1504 may further include a transmitter (eg, a radio frequency transmitter, an antenna, etc.), or a receiver, etc., coupled with the interface.
  • the processor 1502 in the device 150 is configured to read the computer program stored in the memory 1501 for executing the aforementioned method for keeping the broadband connection uninterrupted, such as the keeping the broadband connection uninterrupted as described in any one of the embodiments in FIGS. 4 to 10 . Methods.
  • the electronic device 150 may be the vBNG-CP device in the embodiments shown in FIG. 4 to FIG. 10 , and the processor 1502 in the device 150 is configured to read the computer program stored in the memory 1501 , Used to do the following:
  • the first indication information from the user plane selection decision point USF is received through the communication interface 1504, where the first indication information is used to indicate the first indication information to replace the first vBNG-UP in the case of the failure of the user plane vBNG-UP of the first virtual broadband access gateway 2.
  • vBNG-UP please refer to step S402 in the embodiment shown in FIG. 4 and the detailed description of step S502 in the embodiment shown in FIG. 5 , which will not be repeated here.
  • the user entry is sent to the second vBNG-UP through the communication interface 1504 according to the first indication information, wherein the user entry is used for the second vBNG-UP to use the user entry when the first vBNG-UP fails
  • the entry connects the user to the network.
  • step S408 in the embodiment shown in FIG. 4 and step S509 in the embodiment shown in FIG. 5 which will not be repeated here.
  • the vBNG-CP can obtain in advance the target user plane (the second vBNG-UP) to which the users affected by the failure of the first user plane need to be migrated, so the vBNG-CP can send the user entry to the second vBNG in advance -UP, in this way, when the first user plane fails, the time for sending user entries to the second vBNG-UP can be saved, and the speed of switching user traffic from the first vBNG-UP to the second vBNG-UP can be improved.
  • the processor 1502 before receiving the first indication information from the user plane selection decision point USF through the communication interface 1504, the processor 1502 is further configured to:
  • the failure information of the first vBNG-UP is acquired through the communication interface 1504; the vBNG-CP sends first notification information to the USF, where the first notification information is used to notify the failure of the first vBNG-UP.
  • the first notification information is used to notify the failure of the first vBNG-UP.
  • the vBNG-CP can monitor the connection status with the first vBNG-UP in real time, so that it can sense the failure of the first vBNG-UP in real time.
  • the first vBNG-UP fails, it can send a failure message to the USF. so that USF can query the target user plane to be migrated.
  • processing The device 1502 is also used to:
  • step S406 in the embodiment shown in FIG. 4 and the detailed description of step S706 in the embodiment shown in FIG. 7 , which will not be repeated here.
  • processing The device 1502 is also used to:
  • a notification message sent by the second vBNG-UP after the user traffic is migrated from the first vBNG-UP to the second vBNG-UP is received through the communication interface 1504, and the notification message is used to instruct the vBNG-CP to send the user entry to the second vBNG-UP .
  • the notification message is used to instruct the vBNG-CP to send the user entry to the second vBNG-UP .
  • the processor 1502 is further configured to:
  • a first migration request is sent to the software-defined network SDN controller through the communication interface 1504, where the first migration request is used to request to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the processor 1502 is further configured to:
  • a notification message of successful user entry migration is sent to the USF through the communication interface 1504, where the notification message is used by the USF to trigger the SDN controller to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the notification message is used by the USF to trigger the SDN controller to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the electronic device 150 may be the SDN controller device in the embodiments shown in FIG. 4 to FIG. 10 , and the processor 1502 in the device 150 is configured to read the computer program stored in the memory 1501 , Used to do the following:
  • a first migration request is received through the communication interface 1504, where the first migration request is used to request to migrate user traffic from the first vBNG-UP to the second vBNG-UP in the case of a failure of the first vBNG-UP;
  • the switching point SF is controlled to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • step S607 in the embodiment shown in FIG. 6 , which will not be repeated here.
  • the SDN controller can migrate user traffic from the first vBNG-UP to the second vBNG-UP in the case of the first vBNG-UP failure, which ensures that the user does not perceive the first vBNG-UP failure and keeps the The user's broadband connection is not interrupted, which improves the user's satisfaction.
  • the processor 1502 before receiving the first migration request through the communication interface 1504, the processor 1502 is further configured to:
  • Acquire fault information of the user plane vBNG-UP of the first virtual broadband access gateway send first notification information to the user plane selection decision point USF through the communication interface 1504 , where the first notification information is used to notify the failure of the first vBNG-UP.
  • the first notification information is used to notify the failure of the first vBNG-UP.
  • the SDN controller can monitor the connection status with the first vBNG-UP in real time, so that it can sense the failure of the first vBNG-UP in real time.
  • the first vBNG-UP fails, it can send a failure message to the USF. so that USF can query the target user plane to be migrated.
  • the processor 1502 is specifically configured to: receive the first migration request from the vBNG-CP through the communication interface 1504 .
  • the processor 1502 is specifically configured to: receive the first migration request from the vBNG-CP through the communication interface 1504 .
  • step S805 please refer to the detailed description of step S805 in the embodiment shown in FIG. 8 , which will not be repeated here.
  • the processor 1502 is specifically configured to: receive the first migration request from the USF through the communication interface 1504 .
  • the processor 1502 is specifically configured to: receive the first migration request from the USF through the communication interface 1504 .
  • step S606 please refer to step S606 in the embodiment shown in FIG. 6 , which will not be repeated here.
  • the processor 1502 is specifically configured to: send the path information of the second vBNG-UP to the SF through the communication interface 1504 to control the switch point SF to migrate user traffic from the first vBNG-UP to the second vBNG -UP, the path information is used by the SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • the processor 1502 is specifically configured to: send the path information of the second vBNG-UP to the SF through the communication interface 1504 to control the switch point SF to migrate user traffic from the first vBNG-UP to the second vBNG -UP, the path information is used by the SF to migrate user traffic from the first vBNG-UP to the second vBNG-UP.
  • step S405 in the embodiment shown in FIG. 4 and the detailed description of step S705 in the embodiment shown in FIG. 7 , which will not be repeated here.
  • the processor 1502 is specifically configured to: control the SF to bind the virtual local area network VLAN corresponding to the user or the double-layer virtual local area network QinQ to the interface corresponding to the second vBNG-UP, so as to transfer the user traffic from the first virtual local area network to the second vBNG-UP.
  • One vBNG-UP is migrated to the second vBNG-UP.
  • the electronic device 150 may be the USF device in the embodiments shown in FIG. 4 to FIG. 10 , and the processor 1502 in the device 150 is configured to read the computer program stored in the memory 1501 for Do the following:
  • the USF sends first indication information to the virtual broadband access gateway control plane vBNG-CP, where the first indication information is used to instruct the first virtual broadband access gateway user plane vBNG-UP to replace the first vBNG-UP in the event of failure of the first virtual broadband access gateway user plane vBNG-UP 2.
  • vBNG-UP For a specific implementation, please refer to step S402 in the embodiment shown in FIG. 4 and the detailed description of step S502 in the embodiment shown in FIG. 5 , which will not be repeated here.
  • the USF can decide the target user plane that satisfies load balancing according to various requirements, so that the target user plane (second vBNG-UP) can be used to replace the faulty vBNG-UP when the first vBNG-UP fails. .
  • the utilization rate and efficiency of the network are improved, and the user satisfaction is improved.
  • the processor 1502 before determining the second virtual broadband access gateway user plane vBNG-UP, is further configured to: receive a first notification message through the communication interface 1504, where the first notification message is used to notify the first vBNG-UP failure.
  • the processor 1502 is further configured to: receive a first notification message through the communication interface 1504, where the first notification message is used to notify the first vBNG-UP failure.
  • the processor 1502 is further configured to: send the first migration request to the software-defined network SDN controller through the communication interface 1504, and the first A migration request is used to request migration of user traffic from the first vBNG-UP to the second vBNG-UP in the event of a failure of the first vBNG-UP.
  • the processor 1502 is further configured to: send the first migration request to the software-defined network SDN controller through the communication interface 1504, and the first A migration request is used to request migration of user traffic from the first vBNG-UP to the second vBNG-UP in the event of a failure of the first vBNG-UP.
  • the processor 1502 is further configured to: receive a second notification message from the vBNG-CP through the communication interface 1504, the second notification message Used to indicate that the vBNG-CP has sent the user entry to the second vBNG-UP; for the specific implementation, please refer to step S602 in the embodiment shown in FIG. 6 and the detailed description of step S802 in the embodiment shown in FIG. Repeat.
  • the USF sends a first migration request to the SDN controller according to the second notification message, where the first migration request is used by the SDN controller to migrate user traffic from the first vBNG-UP to the second vBNG-UP; the user entry is the user traffic from the first vBNG-UP.
  • Information about the access network of the second vBNG-UP, and the user entry is used for the second vBNG-UP to maintain the broadband connection of the user in the case of the failure of the first vBNG-UP.
  • step S606 in the embodiment shown in FIG. 6 , which will not be repeated here.
  • the processor 1502 receives the first notification message through the communication interface 1504, and is specifically used for:
  • a first notification message from vBNG-CP is received.
  • step S602 in the embodiment shown in FIG. 6 and step S802 in the embodiment shown in FIG. 8 please refer to step S602 in the embodiment shown in FIG. 6 and step S802 in the embodiment shown in FIG. 8 , and details are not repeated here.
  • the processor 1502 receives the first notification message through the communication interface 1504, and is specifically used for:
  • a first notification message from the SDN controller is received.
  • step S702 in the embodiment shown in FIG. 7 and step S902 in the embodiment shown in FIG. 9 please refer to step S702 in the embodiment shown in FIG. 7 and step S902 in the embodiment shown in FIG. 9 , and details are not repeated here.
  • the processor 1502 determines the second vBNG-UP, and is specifically configured to: determine the second vBNG-UP from a plurality of vBNG-UPs according to the service level agreement SLA.
  • the processor 1502 determines the second vBNG-UP, and is specifically configured to: determine the second vBNG-UP from a plurality of vBNG-UPs according to the service level agreement SLA.
  • SLA service level agreement
  • the electronic device 150 may be the SF device in the embodiments shown in FIG. 4 to FIG. 10 , and the processor 1502 in the device 150 is configured to read the computer program stored in the memory 1501 for Do the following:
  • the path information sent by the software-defined network SDN controller is received through the communication interface 1504, wherein the path information is used to instruct the user traffic to be migrated from the first vBNG-UP in the event of a failure of the first virtual broadband access gateway user plane vBNG-UP to the second vBNG-UP; for a specific implementation, please refer to the detailed description of step S405 in the embodiment shown in FIG. 4 and the detailed description of step S705 in the embodiment shown in FIG. 7 , which will not be repeated here.
  • step S406 in the embodiment shown in FIG. 4
  • step S706 in the embodiment shown in FIG. 7 , which will not be repeated here.
  • the SF can monitor the connection status with the first vBNG-UP in real time, so that the failure of the first vBNG-UP can be sensed in real time.
  • One vBNG-UP is migrated to the target user plane (second vBNG-UP). The traffic migration is completed without the user sensing the failure of the first vBNG-UP, which improves the user experience.
  • the processor 1502 is specifically configured to: bind the virtual local area network VLAN corresponding to the user or the double-layer virtual local area network QinQ to the interface corresponding to the second vBNG-UP according to the path information to complete the transfer of user traffic from the first One vBNG-UP is migrated to the second vBNG-UP.
  • step S607 in the embodiment shown in FIG. 6
  • step S806 in the embodiment shown in FIG. 8
  • step S906 in the embodiment shown in FIG. 9 , which will not be repeated here. .
  • each unit may also correspond to the corresponding descriptions of the method embodiments shown in FIG. 4 to FIG. 10 .
  • Embodiments of the present application further provide a computer-readable storage medium, where a computer program is stored in the computer-readable storage medium.
  • a computer program is stored in the computer-readable storage medium.
  • the computer program is executed as shown in FIG. 4 to FIG. The method described in any one of the embodiments shown in 10.
  • An embodiment of the present application further provides a chip system, where the chip system includes at least one processor, a memory, and an interface circuit, where the interface circuit is used to provide information input/output for the at least one processor, and the at least one processor
  • a computer program is stored in the memory, and when the computer program runs on one or more processors, executes the method described in any one of the embodiments shown in FIGS. 4 to 10 .
  • the embodiments of the present application further provide a computer program product, when the computer program product is executed on one or more processors, it can execute the broadband maintaining described in any one of the embodiments shown in FIG. 4 to FIG. 10 .
  • the connection is not interrupted method.
  • the computer may be a general purpose computer, special purpose computer, computer network, or other programmable device.
  • the computer instructions may be stored in or transmitted over a computer-readable storage medium.
  • the computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server, data center, etc. that includes one or more available media integrated.
  • Useful media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, DVDs), or semiconductor media (eg, solid state disks (SSDs)), and the like.
  • the modules in the device embodiments of the present application may be combined, divided, and deleted according to actual needs.

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Abstract

本申请实施例提供一种宽带连接方法及装置，该方法包括：虚拟宽带接入网关控制面vBNG-CP接收来自用户面选择决策点USF的第一指示信息，第一指示信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下替代第一vBNG-UP的第二vBNG-UP；vBNG-CP根据第一指示信息向第二vBNG-UP发送用户表项，其中，用户表项用于第二vBNG-UP在第一vBNG-UP故障的情况下根据用户表项将用户接入网络。采用本申请实施例，能够在用户面故障的情况下，保持用户接入的宽带不掉线，可以继续访问网络。

Description

一种宽带连接方法及装置
本申请要求于2020年10月31日提交中国专利局、申请号为202011197333.X、申请名称为“一种宽带连接方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种宽带连接方法及装置。
背景技术
随着软件定义网络(Software Defined Network，SDN)技术和网络功能虚拟化(Network Function Virtualization，NFV)技术的发展，城域网从传统以网络为核心的架构向以数据中心为核心的网络架构演进。传统的网元设备也从专业化朝着通用化演进。传统网元设备从专业化朝着通用化演进主要要解决两个解耦：控制与转发的解耦、软件与硬件的解耦。
宽带接入网络设备(Broadcast Network Gateway/Virtual Broadcast Network Gateway，BNG/vBNG)在用户宽带接入业务和场景中非常重要，对BNG设备在用户接入上的主要要求是用户认证、接入控制、流量调度等等。随着各种互联网业务的层出不穷，对BNG设备支持的用户的会话数要求不断提高、对用户接入带宽不断提高、尤其对BNG设备对外提高业务开发、可编程的能力的要求越来越高。基于这些因素，BNG设备基于SDN/NFV的架构实现了上文提到的两个解耦。
BNG转发与控制解耦后，控制面可以管理多个转发面，进行多个转发面之间用户、流量、资源的灵活调度，和单机相比设备的利用率和可靠性可以得到大幅的提高。但是当用户面发生故障时，用户只能掉线后重新拨号才可以接入新的用户面来恢复流量，恢复时间过长，影响用户体验。
发明内容
本申请实施例公开了一种宽带连接的方法及相关装置，能够在用户面故障的情况下，保持用户接入的宽带不掉线，可以继续访问网络。
第一方面。本申请实施例公开了一种宽带连接的方法。在该方法中，虚拟宽带接入网关控制面vBNG-CP接收来自用户面选择决策点USF的第一指示信息，第一指示信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下替代第一vBNG-UP的第二vBNG-UP。vBNG-CP根据第一指示信息向第二vBNG-UP发送用户表项。其中，用户表项可以包括第二vBNG-UP在得知第一vBNG-UP故障的情况下根据用户表项将用户接入网络的相关信息。
上述方案中，vBNG-CP可以提前获取因第一用户面故障而受影响的用户需要迁移的目标用户面(第二vBNG-UP)，因此vBNG-CP可以提前将用户表项发送给第二vBNG-UP，这样在第一用户面故障时，可以节省发送用户表项给第二vBNG-UP的时间，提高将用户流量从第一vBNG-UP切换到第二vBNG-UP的速度。
在第一方面的一种具体的实施方式中，虚拟宽带接入网关控制面vBNG-CP接收来自用户面选择决策点USF的第一指示信息之前，vBNG-CP可以获取第一vBNG-UP的故障信息。 vBNG-CP还可以向USF发送第一通知信息，其中，第一通知信息用于通知第一vBNG-UP故障。
上述方案中，vBNG-CP可以实时监测与第一vBNG-UP的连接状态，使得可以实时感知到第一vBNG-UP发生故障，当第一vBNG-UP发生故障时，可以向USF发送故障消息，以使USF可以查询要迁移的目标用户面。
在第一方面的一种具体的实施方式中，宽带接入网关控制面vBNG-CP接收来自用户面选择决策点USF的第一指示信息之后，vBNG-CP根据第一指示信息向第二vBNG-UP发送用户表项之前，vBNG-CP还可以获取第一vBNG-UP的故障信息。
在第一方面的一种具体的实施方式中，虚拟宽带接入网关控制面vBNG-CP接收来自用户面选择决策点USF的第一指示信息之后，vBNG-CP根据第一指示信息向第二vBNG-UP发送用户表项之前，还包括：vBNG-CP接收第二vBNG-UP在用户流量从第一vBNG-UP迁移到第二vBNG-UP后发送的通知消息，通知消息用于指示vBNG-CP向第二vBNG-UP发送用户表项。
在第一方面的一种具体的实施方式中，vBNG-CP根据第一指示信息向第二vBNG-UP发送用户表项之后，vBNG-CP可以向软件定义网络SDN控制器发送第一迁移请求，其中，第一迁移请求用于请求将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
在第一方面的一种具体的实施方式中，vBNG-CP向第二vBNG-UP发送用户表项之后，还包括：vBNG-CP向USF发送用户表项迁移成功的通知消息，通知消息用于USF触发SDN控制器将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
第二方面，本申请实施例公开了一种宽带连接方法。在该方法中软件定义网络SDN控制器接收第一迁移请求，其中，第一迁移请求用于请求在第一vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP。SDN控制器控制切换点SF还可以将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
上述方案中，SDN控制器可以在第一vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP，保证了用户没有感知到第一vBNG-UP故障，保持了用户的宽带连接不中断，提高了用户的使用满意度。
在第二方面的一种具体的实施方式中，SDN控制器接收第一迁移请求之前，SDN控制器可以获取第一虚拟宽带接入网关用户面vBNG-UP的故障信息。SDN控制器还可以向用户面选择决策点USF发送第一通知信息，其中，第一通知信息用于通知第一vBNG-UP故障。
上述方案中，SDN控制器可以实时监测与第一vBNG-UP的连接状态，使得可以实时感知到第一vBNG-UP发生故障，当第一vBNG-UP发生故障时，可以向USF发送故障消息，以使USF可以查询要迁移的目标用户面。
在第二方面的一种具体的实施方式中，第一迁移请求来自vBNG-CP或者USF。
在第二方面的一种具体的实施方式中，SDN控制器控制切换点SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP具体表现为SDN控制器向SF发送第二vBNG-UP的路径信息来控制切换点SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP，其中，路径信息用于SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
在第二方面的一种具体的实施方式中，SDN控制器控制切换点SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP具体表现为，SDN控制器控制SF将用户对应的虚拟局域网VLAN或者双层虚拟局域网QinQ绑定在第二vBNG-UP对应的接口上，以将用户流量从第一 vBNG-UP迁移到第二vBNG-UP。
第三方面，本申请实施例公开了一种宽带连接方法。在该方法中，用户面选择决策点USF确定第二虚拟宽带接入网关用户面vBNG-UP，其中，第二vBNG-UP为第一vBNG-UP故障后用于替换第一vBNG-UP保持用户的宽带连接不中断的vBNG-UP。USF向虚拟宽带接入网关控制面vBNG-CP发送第一指示信息，第一指示信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下替代第一vBNG-UP的第二vBNG-UP。
上述方案中，USF可以根据各种要求决策出满足负载均衡的目标用户面，使得在第一vBNG-UP故障的情况下可以用目标用户面(第二vBNG-UP)来替换故障的vBNG-UP。提高了网络的利用率和效率，提高了用户的使满意度。
在第三方面的一种具体的实施方式中，用户面选择决策点USF确定第二虚拟宽带接入网关用户面vBNG-UP之前，USF可以接收第一通知消息，其中，第一通知消息用于通知第一vBNG-UP故障。
在第三方面的一种具体的实施方式中，用户面选择决策点USF确定第二虚拟宽带接入网关用户面vBNG-UP之后，USF可以向软件定义网络SDN控制器发送第一迁移请求，第一迁移请求用于请求在第一vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
在第三方面的一种具体的实施方式中，USF向vBNG-CP发送第一指示信息之后，USF可以接收来自vBNG-CP的第二通知消息，其中，第二通知消息用于表征vBNG-CP已经向第二vBNG-UP发送了用户表项。USF根据第二通知消息可以向SDN控制器发送第一迁移请求，第一迁移请求用于SDN控制器将用户流量从第一vBNG-UP迁移到第二vBNG-UP。其中，用户表项用于所述第二vBNG-UP在所述第一vBNG-UP故障的情况下根据用户表项将所述用户接入网络。
在第三方面的一种具体的实施方式中，第一通知消息可以来自于vBNG-CP或者SDN控制器。
在第三方面的一种具体的实施方式中，USF确定第二vBNG-UP具体表现为：USF可以根据业务服务水平协议SLA从多个vBNG-UP中确定第二vBNG-UP。
第四方面，本申请实施例公开了一种宽带连接方法。在该方法中，切换点SF可以接收软件定义网络SDN控制器发送的路径信息，其中，路径信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP。SF还可以获取第一vBNG-UP的故障信息；SF还可以根据路径信息将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
上述方案中，SF可以实时监测与第一vBNG-UP的连接状态，使得可以实时感知到第一vBNG-UP发生故障，当第一vBNG-UP发生故障时，可以快速将用户流量从故障的第一vBNG-UP迁移到目标用户面(第二vBNG-UP)。在用户没有感知到第一vBNG-UP故障的情况下完成流量迁移，提高了用户的使用感受。
在第四方面的一种具体的实施方式中，切换点SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP具体表现为，SF可以根据路径信息将用户对应的虚拟局域网VLAN或者双层虚拟局域网QinQ绑定在第二vBNG-UP对应的接口上来完成将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
第五方面，本申请实施例公开了一种虚拟宽带接入网关控制面装置。在该装置中，接收单元，用于接收来自用户面选择决策点USF的第一指示信息，其中，第一指示信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下替代第一vBNG-UP的第二vBNG-UP。处理单元，用于根据第一指示信息向第二vBNG-UP发送用户表项，其中，用户表项用于所述第二vBNG-UP在所述第一vBNG-UP故障的情况下根据所述用户表项将所述用户接入网络。在第五方面的一种具体的实施方式中，接收单元用于接收来自用户面选择决策点USF的第一指示信息之前，接收单元，还用于获取第一vBNG-UP的故障信息；上述装置进一步可以包括发送单元，用于向USF发送第一通知信息，其中，第一通知信息用于通知第一vBNG-UP故障。
在第五方面的一种具体的实施方式中，接收单元用于接收来自用户面选择决策点USF的第一指示信息之后，处理单元用于根据第一指示信息向第二vBNG-UP发送用户表项之后，接收单元，还用于获取第一vBNG-UP的故障信息。
在第五方面的一种具体的实施方式中，接收单元用于接收来自用户面选择决策点USF的第一指示信息之后，处理单元用于根据第一指示信息向第二vBNG-UP发送用户表项之后，接收单元，还用于接收第二vBNG-UP在用户流量从第一vBNG-UP迁移到第二vBNG-UP后发送的通知消息，其中，通知消息用于指示vBNG-CP向第二vBNG-UP发送用户表项。
在第五方面的一种具体的实施方式中，处理单元用于根据第一指示信息向第二vBNG-UP发送用户表项之后，上述装置进一步可以包括发送单元，用于向软件定义网络SDN控制器发送第一迁移请求，其中，第一迁移请求用于请求将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
在第五方面的一种具体的实施方式中，处理单元用于根据第一指示信息向第二vBNG-UP发送用户表项之后，上述装置可以进一步包括发送单元，用于向USF发送用户表项迁移成功的通知消息，其中，通知消息用于USF触发SDN控制器将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
关于第五方面或具体的实现方式所带来的技术效果，可参考对于第一方面或相应的实施方式的技术效果的介绍。
第六方面，本申请实施例公开了一种软件定义网络控制器装置。在该装置中，接收单元，用于接收第一迁移请求，其中，第一迁移请求用于请求在第一vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP。处理单元，用于控制切换点SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
在第六方面的一种具体的实施方式中，接收单元用于接收第一迁移请求之前，接收单元，还用于获取第一虚拟宽带接入网关用户面vBNG-UP的故障信息。上述装置进一步可以包括发送单元，用于向用户面选择决策点USF发送第一通知信息，其中，第一通知信息用于通知第一vBNG-UP故障。
在第六方面的一种具体的实施方式中，第一迁移请求可以来自vBNG-CP或者USF。
在第六方面的一种具体的实施方式中，处理单元，具体用于向SF发送第二vBNG-UP的路径信息控制切换点SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP，路径信息用于SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
在第六方面的一种具体的实施方式中，处理单元，具体用于控制SF将用户对应的虚拟局 域网VLAN或者双层虚拟局域网QinQ绑定在第二vBNG-UP对应的接口上，以将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
关于第六方面或可能的实现方式所带来的技术效果，可参考对于第二方面或相应的实施方式的技术效果的介绍。
第七方面，本申请实施例公开了一种用户面选择决策点装置。在该装置中，处理单元，用于确定第二虚拟宽带接入网关用户面vBNG-UP，其中，第二vBNG-UP为第一vBNG-UP故障后用于替换第一vBNG-UP将用户接入网络的vBNG-UP。发送单元，用于向虚拟宽带接入网关控制面vBNG-CP发送第一指示信息，第一指示信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下替代第一vBNG-UP的第二vBNG-UP。
在第七方面的一种具体的实施方式中，处理单元用于确定第二虚拟宽带接入网关用户面vBNG-UP之前，还包括：接收单元，用于接收第一通知消息，其中，第一通知消息用于通知第一vBNG-UP故障。
在第七方面的一种具体的实施方式中，处理单元用于确定第二虚拟宽带接入网关用户面vBNG-UP之后，发送单元，还可以用于向软件定义网络SDN控制器发送第一迁移请求，第一迁移请求用于请求在第一vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
在第七方面的一种具体的实施方式中，发送单元用于向vBNG-CP发送第一指示信息之后，接收单元，还可以用于接收来自vBNG-CP的第二通知消息，第二通知消息用于表征vBNG-CP已经向第二vBNG-UP发送了用户表项；发送单元，还可以用于根据第二通知消息向SDN控制器发送第一迁移请求，第一迁移请求用于SDN控制器将用户流量从第一vBNG-UP迁移到第二vBNG-UP；其中，用户表项为用户从第二vBNG-UP接入网络的信息，用户表项用于第二vBNG-UP在第一vBNG-UP故障的情况保持用户的宽带连接。
在第七方面的一种具体的实施方式中，第一通知消息可以来自述vBNG-CP或者SDN控制器。
在第七方面的一种具体的实施方式中，处理单元，具体用于根据业务服务水平协议SLA从多个vBNG-UP中确定第二vBNG-UP。
关于第七方面或可能的实现方式所带来的技术效果，可参考对于第三方面或相应的实施方式的技术效果的介绍。
第八方面，本申请实施例公开了一种切换点装置。在该装置中，接收单元，用于接收SDN控制器发送的路径信息，其中，路径信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP。获取单元，用于获取第一vBNG-UP的故障信息；处理单元，用于根据路径信息将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
在第八方面的一种具体的实施方式中，处理单元，具体用于根据路径信息将用户对应的虚拟局域网VLAN或者双层虚拟局域网QinQ绑定在第二vBNG-UP对应的接口上来完成将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
关于第八方面或可能的实现方式所带来的技术效果，可参考对于第四方面或相应的实施方式的技术效果的介绍。
第九方面，本申请实施例公开了一种宽带连接系统，包括vBNG-CP装置和USF装置，在该系统中，USF装置，用于向vBNG-CP装置发送第一指示信息，第一指示信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下替代第一vBNG-UP的第二vBNG-UP。
vBNG-CP装置，用于根据第一指示信息向第二vBNG-UP发送用户表项，其中，用户表项为用户从第二vBNG-UP接入网络的信息，用户表项用于第二vBNG-UP在第一vBNG-UP故障的情况下根据所述用户表项将所述用户接入网络。
在第九方面的一种具体的实现方式中，系统还包括：
SDN控制器，用于接收第一迁移请求，其中，第一迁移请求用于请求在第一vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
SF装置，用于根据路径信息将用户流量从第一vBNG-UP迁移到第二vBNG-UP，其中，路径信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
在第九方面的一种具体的实现方式中，USF装置用于向vBNG-CP装置发送第一指示信息之前，vBNG-CP装置，还用于获取第一vBNG-UP的故障信息；
vBNG-CP装置，还用于向USF发送第一通知信息，第一通知信息用于通知第一vBNG-UP故障。
在第九方面的一种具体的实现方式中，USF装置用于向vBNG-CP装置发送第一指示信息之后，vBNG-CP装置用于根据第一指示信息向第二vBNG-UP发送用户表项之前，vBNG-CP装置，还用于获取第一vBNG-UP的故障信息。
在第九方面的一种具体的实现方式中，USF装置用于向vBNG-CP装置发送第一指示信息之后，vBNG-CP装置用于根据第一指示信息向第二vBNG-UP发送用户表项之前，vBNG-CP装置，还用于接收第二vBNG-UP在用户流量从第一vBNG-UP迁移到第二vBNG-UP后发送的通知消息，其中，通知消息用于指示vBNG-CP向第二vBNG-UP发送用户表项。
在第九方面的一种具体的实现方式中，vBNG-CP装置用于根据第一指示信息向第二vBNG-UP发送用户表项之后，vBNG-CP装置，还用于向软件定义网络SDN控制器发送第一迁移请求，其中，第一迁移请求用于请求将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
在第九方面的一种具体的实现方式中，vBNG-CP装置用于根据第一指示信息向第二vBNG-UP发送用户表项之后，vBNG-CP装置，还用于向USF发送用户表项迁移成功的通知消息，通知消息用于USF触发SDN控制器将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
在第九方面的一种具体的实现方式中，USF装置还用于确定第二虚拟宽带接入网关用户面vBNG-UP。
在第九方面的一种具体的实现方式中，USF装置用于确定第二虚拟宽带接入网关用户面vBNG-UP之前，USF装置还可以用于接收第一通知消息，第一通知消息用于通知第一vBNG-UP故障。
在第九方面的一种具体的实现方式中，USF装置用于确定第二虚拟宽带接入网关用户面vBNG-UP之后，USF装置还可以用于向软件定义网络SDN控制器发送第一迁移请求，第一迁移请求用于请求在第一vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
在第九方面的一种具体的实现方式中，USF装置用于确定第二虚拟宽带接入网关用户面vBNG-UP之后，USF装置还可以用于接收来自vBNG-CP的第二通知消息，第二通知消息用于表征vBNG-CP已经向第二vBNG-UP发送了用户表项；
USF装置还可以用于根据第二通知消息向SDN控制器发送第一迁移请求。
在第九方面的一种具体的实现方式中，USF装置具体可以用于根据业务服务水平协议SLA从多个vBNG-UP中确定第二vBNG-UP。
在第九方面的一种具体的实现方式中，SDN控制器用于接收第一迁移请求之前，SDN控制器还用于获取第一虚拟宽带接入网关用户面vBNG-UP的故障信息；
SDN控制器还用于向USF发送第一通知信息，第一通知信息用于通知第一vBNG-UP故障。
在第九方面的一种具体的实现方式中，SDN控制器还可以用于控制切换点SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
在第九方面的一种具体的实现方式中，SDN控制器具体用于向SF发送第二vBNG-UP的路径信息来控制切换点SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP，路径信息用于SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
在第九方面的一种具体的实现方式中，SDN控制器具体用于控制SF将用户对应的虚拟局域网VLAN或者双层虚拟局域网QinQ绑定在第二vBNG-UP对应的接口上，以将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
在第九方面的一种具体的实现方式中，SF还可以用于接收SDN控制器发送的路径信息。
在第九方面的一种具体的实现方式中，SF还可以用于获取第一vBNG-UP的故障信息。
在第九方面的一种具体的实现方式中，SF具体可以用于根据路径信息将用户对应的虚拟局域网VLAN或者双层虚拟局域网QinQ绑定在第二vBNG-UP对应的接口上来完成将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
关于第九方面或可能的实现方式所带来的技术效果，可参考对于第一方面，或者第二方面，或者第三方面，或者第四方面任意一种实施方式的技术效果的介绍。
第十方面，本申请实施例公开了一种虚拟宽带接入网关控制面设备，设备包括至少一个处理器和通信接口，通信接口用于发送和/或接收数据，至少一个处理器用于调用至少一个存储器中存储的计算机程序，以使得设备实现第一方面或者第一方面任意一种具体的实施方式所描述的方法。
关于第十方面或可能的实现方式所带来的技术效果，可参考对于第一方面或相应的实施方式的技术效果的介绍。
第十一方面，本申请实施例公开了一种软件定义网络控制器设备，设备包括至少一个处理器和通信接口，通信接口用于发送和/或接收数据，至少一个处理器用于调用至少一个存储器中存储的计算机程序，以使得设备实现第二方面或者第二方面任意一种具体的实施方式所描述的方法。
关于第十一方面或可能的实现方式所带来的技术效果，可参考对于第二方面或相应的实施方式的技术效果的介绍。
第十二方面，本申请实施例公开了一种用户面选择决策点设备，设备包括至少一个处理 器和通信接口，通信接口用于发送和/或接收数据，至少一个处理器用于调用至少一个存储器中存储的计算机程序，以使得设备实现第三方面或者第三方面任意一种具体的实施方式所描述的方法。
关于第十二方面或可能的实现方式所带来的技术效果，可参考对于第三方面或相应的实施方式的技术效果的介绍。
第十三方面，本申请实施例公开了一种切换点设备，设备包括至少一个处理器和通信接口，通信接口用于发送和/或接收数据，至少一个处理器用于调用至少一个存储器中存储的计算机程序，以使得设备实现第二方面或者第二方面任意一种具体的实施方式所描述的方法。
关于第十三方面或可能的实现方式所带来的技术效果，可参考对于第四方面或相应的实施方式的技术效果的介绍。
第十四方面，本申请实施例公开了一种计算机可读存储介质，计算机可读存储介质中存储有计算机程序，当计算机程序在一个或多个处理器上运行时，执行第一方面或第一方面的任意一种具体的实施方式、或者第二方面或第二方面的任意一种具体的实施方式、或者第三方面或第三方面的任意一种具体的实施方式、或者第四方面或第四方面的任意一种具体的实施方式所描述的方法。
第十五方面，本申请实施例公开了一种计算机程序产品，当计算机程序产品在一个或多个处理器上运行时，执行第一方面或第一方面的任意一种具体的实施方式、或者第二方面或第二方面的任意一种具体的实施方式、或者第三方面或第三方面的任意一种具体的实施方式、或者第四方面或第四方面的任意一种具体的实施方式所描述的方法。
第十六方面，本申请实施例公开了一种芯片系统，芯片系统包括至少一个处理器，存储器和接口电路，该接口电路用于为上述至少一个处理器提供信息输入/输出，该存储器中存储有计算机程序，当计算机程序在一个或多个处理器上运行时，执行第一方面或第一方面的任意一种具体的实施方式所描述的方法。
第十七方面，本申请实施例公开了一种芯片系统，芯片系统包括至少一个处理器，存储器和接口电路，该接口电路用于为上述至少一个处理器提供信息输入/输出，该存储器中存储有计算机程序，当计算机程序在一个或多个处理器上运行时，执行第二方面或第二方面的任意一种具体的实施方式所描述的方法。
第十八方面，本申请实施例公开了一种芯片系统，芯片系统包括至少一个处理器，存储器和接口电路，该接口电路用于为上述至少一个处理器提供信息输入/输出，该存储器中存储有计算机程序，当计算机程序在一个或多个处理器上运行时，执行第三方面或第三方面的任意一种具体的实施方式所描述的方法。
第十九方面，本申请实施例公开了一种芯片系统，芯片系统包括至少一个处理器，存储器和接口电路，该接口电路用于为上述至少一个处理器提供信息输入/输出，该存储器中存储有计算机程序，当计算机程序在一个或多个处理器上运行时，执行第四方面或第四方面的任 意一种具体的实施方式所描述的方法。
附图说明
以下对本申请实施例用到的附图进行介绍。
图1A是本申请实施例提供的一种vBNG架构的示意图；
图1B是本申请实施例提供的一种vBNG-UP的架构示意图
图2A是本申请实施例提供的一种网络架构示意图；
图2B是本申请实施例提供的一种用户宽带接入的流程示意图；
图3是本申请实施例提供的一种宽带连接的架构示意图；
图4是本申请实施例提供的另一种宽带连接的流程示意图；
图5是本申请实施例提供的另一种宽带连接的流程示意图；
图6是本申请实施例提供的另一种宽带连接的流程示意图；
图7是本申请实施例提供的另一种宽带连接的流程示意图；
图8是本申请实施例提供的另一种宽带连接的流程示意图；
图9是本申请实施例提供的另一种宽带连接的流程示意图；
图10是本申请实施例提供的一种虚拟宽带接入网关控制面装置的结构示意图；
图11是本申请实施例提供的一种软件定义网络控制器装置的结构示意图；
图12是本申请实施例提供的一种用户面选择决策点装置的结构示意图；
图13是本申请实施例提供的一种切换点装置的结构示意图；
图14是本申请实施例提供的一种宽带连接系统的结构示意图；
图15是本申请实施例提供的一种电子设备的结构示意图。
具体实施方式
下面结合本申请实施例中的附图对本申请实施例进行描述。
1、宽带网络网关(Broadband Network Gateway，BNG)
BNG设备是面向宽带网络应用的新型接入网关，它位于骨干网的边缘层，通常作为城域网中用户接入的终结点和基础服务的提供点，用于终结用户的以太网上点对点协议(Pointto-PointPotocol Over Ethernet，PPPOE)连接、汇聚用户的流量、与认证系统、计费系统和客户管理系统及服务策略控制系统相配合实现用户接入的认证、计费和管理功能。
2、虚拟宽带网络网关(virtual Broadband Network Gateway，vBNG)
由于传统的BNG设备一般基于软硬件一体化的设备实现，当需要部署新业务时，不同时期部署的BNG设备无法通过软件升级方式实现同一功能，因此在实际应用中引入了vBNG设备以实现BNG设备的功能。vBNG是一种通过对传统宽带网络网关功能虚拟化得到虚拟设备。由于vBNG可以运行在通用服务器的硬件环境中，在实现传统BNG设备能够实现的相关功能的同时，降低了部署新业务时进行升级的成本，提高了可维护性。例如，vBNG可以在进行用户接入时完成对于用户的上线处理、用户认证鉴权与计费(Authentication，Authorization and Accounting，AAA)。
3、软件定义网络(Software Designed Network，SDN)
SDN是网络虚拟化的一种实现方式，是一种新型网络创新架构，可通过软件编程的形式定义和控制网络。其核心技术OpenFlow通过将网络设备的控制面与数据面分离开来从而实现网络流量的灵活控制，使网络作为管道变得更加智能，为核心网络及应用的创新提供了良好的平台。
利用分层的思想，SDN将数据与控制相分离。在控制层，包括具有逻辑中心化和可编程的控制器，可掌握全局网络信息，方便运营商和科研人员管理配置网络和部署新协议等。在数据层，包括哑的交换机(与传统的二层交换机不同，专指用于转发数据的设备)，仅提供简单的数据转发功能，可以快速处理匹配的数据包，适应流量日益增长的需求。两层之间采用开放的统一接口(如OpenFlow等)进行交互。控制器通过标准接口向交换机下发统一标准规则，交换机仅需按照这些规则执行相应的动作即可。
4、网络功能虚拟化(Network Functions Virtualization，NFV)
NFV一种对于网络架构(network architecture)的概念，利用虚拟化技术，将网络节点阶层的功能，分割成几个功能区块，分别以软件方式实现，不再拘限于硬件架构。
NFV的理念是通过将目前多种通信设备的硬件统一，以降低成本，而将设备网络的功能通过软件虚拟化到通用硬件平台上。通过软硬件解耦及功能抽象，使网络设备功能不再依赖于专用硬件，资源可以充分灵活共享，实现新业务的快速开发和部署，并基于实际业务需求进行自动部署、弹性伸缩、故障隔离和自愈等。
5、服务水平协议(Service Level Agreement，SLA)
在通讯网络中，为了保障通讯服务质量，服务提供商与用户之间会签订SLA。SLA是一种正式的协议，服务提供商通过SLA为用户提供差异化的服务，并确保服务质量达到SLA中条款的规定，同时在服务质量存在违例时，即服务质量没有达到所签订SLA中条款的要求，则按照SLA的规定对用户进行赔偿或折扣。
在现实应用中，同一用户在不同情况下，可能需要不同级别的服务。例如，企业用户定购VPN服务的情况下，在工作时间通常需要保证较高的服务水平，以确保自身业务的正常运行，并愿意为此付较高的服务费用；而非工作时间则可以能需要低级别的服务水平，用以满足非重要工作活动的进行，并希望付较低的费用。再例如，个人用户在数字电话业务中，可能适当的丢包率是可以忍受的，但是在一些重要的情况下，比如视频会议等等，希望服务提供高的服务水平并愿意支付更高的费用。
因此，可以根据用户所需要的服务来提供相应的SLA保障。
请参见图1A，图1A是本申请实施例提供一种vBNG架构的示意图。从图1A可以看出，在转控(转发和控制)分离的架构下，vBNG可以通过SDN实现控制面(vBNG-CP)与用户面(vBNG-UP)的分离，通过NFV实现软件与硬件的解耦。
从图1A可以看出，宽带网络网关BNG设备基于SDN/NFV架构实现了用户面和控制面的解耦，在控制面和用户面解耦的BNG设备的环境下，一个虚拟宽带网络网关vBNG的控制面(vBNG-CP)可以管理几十、上百个vBNG的用户面(vBNG-UP)，进行多个用户面之间用户、流量、资源的调度。其中，一个vBNG-UP上的用户接入端口平均可以达到100个，那么一个vBNG-CP需要管理几千甚至上万个用户接入端口。
业务系统是外围系统平台，可与vBNG系统联动提供各种业务，主要包括远程用户拨号认证服务(Remote Authentication Dial In User Service，RADIUS)服务器、动态主机配置协议(Dynamic Host Configuration Protocol，DHCP)服务器、日志服务器、Portal服务器等等中的一个或多个。进一步的，业务系统可以是一个服务器，也可以是多个服务器组成的服务器集群。
控制面103A，也可以称vBNG-CP，可以负责用户的控制域管理，主要可以实现用户接入管理、策略管理、地址管理、用户认证授权计费、通过命令模式进行配置与管理、通过统 一的北向接口连接外部的业务系统、与管理和网络编排(Management and Orchestration，MANO)系统(图1A中未示出)交互(实现vBNG-CP的一键式部署及弹性扩缩容)等等。vBNG-CP作为虚拟网络功能(virtualized network function，VNF)，一般采用x86服务器，来实现虚拟化。
用户面103B，也可以称vBNG-UP，负责用户数据报文的转发，主要功能包括执行传统BNG设备用户面的功能(流量转发、流量统计、服务质量(Quality of Service，QoS)策略执行等等)、开通VPN、通过命令模式进行配置与管理。
接口103C可以包括协议接口、控制接口、管理接口中的一项或多项。协议接口可以通过虚拟扩展局域网(Virtual Extensible Local Area Network，VxLAN)隧道传递PPPoE、IPoE(IP over Ethernet)等协议报文；控制接口可以通过Openflow实现vBNG-CP向vBNG-UP下发用户表项(或者称为业务流表项)以及vBNG-UP向vBNG-CP上报业务事件；管理接口可以通过Netconf实现vBNG-CP对vBNG-UP的配置下发。
请参见图1B，图1B是本申请实施例提供的一种vBNG-UP的架构示意图。从图1B可以看出，vBNG-UP一般存在两种形态，一种是虚拟用户面104A(virtual User Plan，vUP)，vUP104A作为VNF，可以是运行在x86服务器上的虚拟化网元；另外一种是物理用户面104B(physic User Plane，pUP)，pUP104B作为物理网络功能(physical network function，PNF)，可以是运行在传统硬件网络设备上的网元。通常来说，控制面103(vBNG-CP)可以用来管理vUP和pUP。
目前来说，vBNG-UP可以分布在网络边缘位置，也可以分布在网络中心位置，本申请实施例不做任何限制。
请参见图2A，图2A是本申请实施例提供的一种网络架构示意图。从图2A可以看出，网络架构可以包括以下一种或多种：用户设备200、接入网(Access Network，AN)设备201、切换点(Steering Function，SF)202、第一物理用户面203A(pUP)、第二物理用户面203B、第三物理用户面203Cp、控制面(vBNG-CP)204、服务器205、用户选择决策点(UP Selection Function，USF)206、软件定义网络(SDN)控制器207。需要说明的是，用户面不止包括图2A所示的第一物理用户面203A(pUP)、第二物理用户面203B、第三物理用户面203。
其中，用户设备200包括但不限于：住宅网关(Residential Gateway，RG)、用户侧设备(Customer Premise Equipment，CPE)、个人计算机(Personal Computer，PC)、网络电话(Voice over Internet Protocol，VoIP)，网络电视(Internet Protocol Television，IPTV)，机顶盒(Set Top Box，STB)，综合接入设备(Integrated Access Device，IAD)。
从图2A可以看出，在接入网设备201后面部署切换点SF202设备，上述切换点202设备与用户面之间可以建立二层隧道切换点设备202与接入网设备AN201接入的物理接口可以划分为不同的子接口，在不同的子接口中可以匹配不同的VLAN或者QinQ，而不同的子接口可以对应不同的二层隧道。可以理解的是，VLAN接口是在物理接口下创建的子接口。
控制面CP可以管理多个转发面，可以进行多个转发面之间用户、流量、资源的调度。USF是UP的选择决策点，可以用来决策用户上线时的UP网关，或者用户在线后动态迁移的UP网关。
对于USF来说，它可以内置于CP中，也可以内置于SDN控制器中，还可以是一个单独的网元。也即，USF可以与CP为一个设备，或者USF可以与SDN控制器为一个设备，或者 USF可以单独为一个设备。本申请实施例不做任何限制。
请参见图2B，如图2B所示是本申请实施例提供的一种用户宽带接入的流程示意图，从图2B可以看出，用户通过网络协议(可以是PPPoE或者DHCP)等相关控制报文信息来完成拨号从而接入网络，具体流程可以为：
用户设备向SF发送网络协议等相关控制报文信息，然后由SF再将网络协议等相关控制报文信息发送给第一用户面UP。再然后，第一UP可以将上述网络协议等相关控制报文信息发送给控制面CP，由CP向USF发送第一UP上用户的迁移策略。
USF接收到CP发送的用户迁移策略后，可以根据用户SLA判断得知应该从第二UP上线来接入网络，因此USF向CP发送要迁移的目标UP是第二UP，也就是说，USF通知CP将用户表项下发至第二UP；当CP将UP2中的IP池中的IP地址分配给用户设备后，CP将用户表项下发至第二UP；当CP通知USF已经将用户表项下发至第二UP后，USF通知SDN控制器对SF进行配置，将用户对应的VLAN或者QinQ绑定到第二UP对应的接口上。至此，将用户流量从第一UP迁移至第二UP，用户设备后续的报文转发可以直接转发至第二UP。
其中，用户表项用于第二UP在第一UP故障的情况下根据用户表项将用户接入网络。
需要说明的是，在本申请实施例中，vBNG-UP可以理解为是转发面，也可以理解为是虚拟宽带网络网关用户面，或者是用户面；vBNG-CP可以理解为是控制面，也可以理解为是虚拟宽带网络网关控制面。
目前来说，当用户面出现故障导致用户设备掉线时，用户只能掉线后重新拨号才能接入到新的UP，从而恢复流量。而重新拨号来完成宽带接入的流程较为繁琐，倒换时间过长，用户体验较差。
需要说明的是，用户面故障包括但不限于：用户面上的接口故障、接口板故障、或者用户所在的整个设备的故障，等等。
请参见图3，图3是本申请实施例提供的一种宽带连接的架构示意图。从图3可以看出，在用户面出现故障时，在用户设备侧不感知的情况下，将用户的流量从发生故障的第一用户面305A迁移到第二用户面305B。具体方法至少包括如下步骤：
步骤S1，控制面306通过实时监测与第一用户面305A的连接状态，当第一用户面305A因为发生故障与控制面之间的连接断开后，控制面可以检测到与第一用户面的连接状态为断开连接，感知到第一用户面305A出现故障。
步骤S2，控制面306向用户面选择决策点USF307查询受第一用户面305A故障所影响的用户要迁移的目标用户面。其中，USF307可以根据每个用户面的负载情况、SLA等要求来决策出在第一用户面305A故障的情况下需要迁移的目标用户面。
步骤S3，控制面306接收到USF306发送的目标用户面是第二用户面305B的消息后，控制面306向第二用户面305B下发用户表项。其中，用户表项为用户从第二用户面305B接入网络的信息，具体可以包括以下一种或多种信息：控制面306的相关信息、转发表项、用户的拨号信息、MAC信息、第二用户面305B的接口信息，等等。
其中，用户表项用户第二用户面305B在第一用户面305A故障的情况下根据用户表项接入网络。
步骤S4，USF307通知软件定义网络SDN308进行用户流量迁移。
步骤S5，SDN308控制切换点SF304进行将用户设备的流量从第一用户面305A切换到 第二用户面305B。
步骤S6，用户设备的流量切换到第二用户面305B进行转发。
需要说明的是，在本申请实施例中，用户面可以包括虚拟用户面vUP或者物理用户面pUP，本申请实施例不做任何限制。比如说，第一用户面可以是第一物理用户面，也可以是第一虚拟用户面。
另外，在本申请实施例中提及的用户面可以是宽带网络网关用户面，提及的控制面可以宽带网络网关控制面。
请参见图4，图4是本申请实施例提供的另一种宽带连接的流程示意图，进一步的，该方法可以基于图2A所示的框架来实现，该方法至少包括如下步骤：
用户设备可以按照如图2B所示的流程示意图从第三用户面接入网络后，并且在USF根据SLA判断应该从第一用户面接入网络的情况，将用户流量从第三用户面迁移到第一用户面。因此，用户设备后续的转发报文可以直接转发至第一用户面。
步骤S401，用户面选择决策点确定第二用户面。
具体地，用户面选择决策点USF可以根据每个用户面的负载情况、SLA等要求来决策出在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下需要迁移的目标vBNG-UP。因此，在满足负载均衡和SLA，以及提高网络利用率等要求的情况下，USF可以从多个vBNG-UP中决策出目标vBNG-UP是第二vBNG-UP。
步骤S402，用户面选择决策点向控制面发送第一指示信息。
具体地，在USF确定目标vBNG-UP是第二vBNG-UP的情况下，USF可以向虚拟宽带接入网关控制面vBNG-CP发送第一指示信息，其中，第一指示信息用于指示在第一vBNG-UP故障的情况下替代第一vBNG-UP的目标vBNG-UP是第二vBNG-UP的信息。
步骤S403，控制面获取用户表项。
具体地，在vBNG-CP接收来自USF的第一指示信息后，vBNG-CP可以实时生成第二vBNG-UP的用户表项。
其中，用户表项为第二vBNG-UP在第一vBNG-UP故障的情况下根据用户表项将用户从第二vBNG-UP接入网络的信息，具体可以包括以下一种或多种信息：控制面306的相关信息、转发表项、用户的拨号信息、MAC信息、第二vBNG-UP的接口信息，等等。用户表项用于第二vBNG-UP在第一vBNG-UP故障的情况保持所述用户的宽带连接。
步骤S404，用户面选择决策点向软件定义网络控制器发送第一迁移请求。
具体地，在USF确定目标vBNG-UP是第二vBNG-UP的情况下，USF向软件定义网络SDN控制器发送用于请求在vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP的信息。
步骤S405，软件定义网络控制器向切换点发送第二用户面的路径信息。
具体地，在SDN控制器接收来自USF的第一迁移请求后，SDN控制器知道目标vBNG-UP是第二vBNG-UP，则SDN控制器向切换点SF发送第二vBNG-UP的路径信息，以使得在第一vBNG-UP故障时，SF可以快速将受影响用户的流量切换到第二vBNG-UP。
步骤S406，获取第一用户面的故障信息。
具体地，SF和vBNG-CP可以实时检测与第一vBNG-UP之间的连接状态，当第一vBNG-UP因为发生故障与vBNG-CP或者SF之间的连接断开后，SF和vBNG-CP可以检测到与第一vBNG-UP的连接状态为断开连接，则SF和vBNG-CP可以获取到与第一vBNG-UP 断开连接的故障信息。
可选地，在SF获取到与第一vBNG-UP断开连接的故障信息后，SF可以将第一用户面的故障信息发送给vBNG-CP，使得vBNG-CP知道第一vBNG-UP发生故障。
可选地，在vBNG-CP获取到与第一vBNG-UP断开连接的故障信息后，vBNG-CP可以将第一用户面的故障信息发送给SF，使得SF知道第一vBNG-UP发生故障。其中，第一vBNG-UP的故障情况可以是第一vBNG-UP的接口故障、接线板故障或者整机故障，等等。
步骤S407，切换点将用户流量从第一用户面迁移到第二用户面。
具体地，在SF获取到第一vBNG-UP的故障信息的情况下，可以根据SDN控制器发送的第二用户面的路径信息将用户对应的虚拟局域网VLAN或者双层虚拟局域网QinQ绑定在第二vBNG-UP对应的接口上来完成将用户流量从所述第一vBNG-UP迁移到所述第二vBNG-UP。
步骤S408，控制面向第二用户面发送用户表项。
具体地，在vBNG-CP获取到第一vBNG-UP的故障信息的情况下，可以将提前生成的用户面表项向第二vBNG-UP发送。
至此，用户流量将从第一vBNG-UP切换到第二vBNG-UP，后续的流量也将从第二vBNG-UP进行转发。
在USF提前规划在第一vBNG-UP故障时，替代第一vBNG-UP的目标vBNG-UP是第二vBNG-UP的情况下，当SF和vBNG-CP察觉到第一vBNG-UP发送故障时，SF可以快速将第一vBNG-UP上的用户流量迁移到第二vBNG-UP，vBNG-CP可以快速将用户表项发送给第二vBNG-UP。至此，可以在第一vBNG-UP故障的情况下，快速切换到第二vBNG-UP，从而通过第二vBNG-UP接入网络。
请参见图5，图5是本申请实施例提供的另一种宽带连接的流程示意图，进一步的，该方法可以基于图2A所示的框架来实现，该方法至少包括如下步骤：
用户设备可以按照如图2B所示的流程示意图从第三用户面接入网络后，并且在USF根据SLA判断应该从第一用户面接入网络的情况，将用户流量从第三用户面迁移到第一用户面。因此，用户设备后续的转发报文可以直接转发至第一用户面。
步骤S501，用户面选择决策点确定第二用户面。
具体地，详细描述可参考步骤S401，此处不再赘述。
步骤S502，用户面选择决策点向控制面发送第一指示信息。
具体地，详细描述可参考步骤S402，此处不再赘述。
步骤S503，用户面选择决策点向软件定义网络控制器发送第一迁移请求。
具体地，详细描述可参考步骤S404，此处不再赘述。
步骤S504，软件定义网络控制器向切换点发送第二用户面的路径信息。
具体地，SDN可以接收来自USF发送的第一迁移请求，其中，详细描述可参考步骤S405，此处不再赘述。
步骤S505，切换点获取第一用户面的故障信息。
具体地，SF可以实时检测与第一vBNG-UP之间的连接状态，当第一vBNG-UP因为发生故障与vBNG-CP之间的连接断开后，SF可以检测到与第一vBNG-UP的连接状态为断开连接，则SF可以获取到与第一vBNG-UP断开连接的故障信息。
其中，故障可以是第一vBNG-UP的接口故障、接线板故障或者整机故障，等等。
步骤S506，切换点将第一用户面的用户流量迁移到第二用户面。
具体地，详细描述可参考步骤S407，此处不再赘述。
步骤S507，用户设备向第二用户面发送数据报文。
具体地，当切换点将第一用户面的用户流量迁移到第二用户面后，用户设备可以向第二用户面发送数据报文。
步骤S508，第二用户面向控制面发送通知消息。
具体地，在vBNG-CP接收来自USF的第一指示信息后知道目标vBNG-UP是第二vBNG-UP的情况下，在第一vBNG-UP的流量迁移到第二vBNG-UP后，第二vBNG-UP可以向vBNG-CP发送用于指示vBNG-CP向第二vBNG-UP发送用户表项的消息。
步骤S509，控制面向第二用户面发送用户表项。
具体地，在vBNG-CP接收到第二vBNG-UP在用户流量从第一vBNG-UP迁移到第二vBNG-UP后发送的通知消息的情况下，可以向第二vBNG-UP发送用户面表项。
至此，用户流量将从第一vBNG-UP切换到第二vBNG-UP，后续的流量也将从第二vBNG-UP进行转发。
在USF提前规划在第一vBNG-UP故障时，替代第一vBNG-UP的目标vBNG-UP是第二vBNG-UP的情况下，当SF察觉到第一vBNG-UP发生故障时，SF可以快速将第一vBNG-UP上的用户流量迁移到第二vBNG-UP，当第一vBNG-UP上的用户流量迁移到第二vBNG-UP的情况下，vBNG-CP可以将用户表项发送给第二vBNG-UP。至此，可以在第一vBNG-UP故障的情况下，快速切换到第二vBNG-UP，从而可以通过第二vBNG-UP接入网络。
请参见图6，图6是本申请实施例提供的一种宽带连接的流程示意图，进一步的，该方法可以基于图2A所示的框架来实现，该方法至少包括如下步骤：
用户设备可以按照如图2B所示的流程示意图从第三用户面接入网络后，并且在USF根据SLA判断应该从第一用户面接入网络的情况，将用户流量从第三用户面迁移到第一用户面。因此，用户设备后续的转发报文可以直接转发至第一用户面。
当第一用户面因为接口故障、接线板故障或者整机故障而导致用户设备掉线，连接不上网络的情况，可以按照如下步骤保持用户设备的宽带连接不中断。
步骤S601：控制面获取第一用户面的故障信息。
具体地，虚拟宽带接入网关控制面vBNG-CP可以实时检测与第一虚拟宽带接入网关用户面vBNG-UP之间的连接状态，当第一vBNG-UP因为发生故障与vBNG-CP之间的连接断开后，vBNG-CP可以检测到与第一vBNG-UP的连接状态为断开连接，则vBNG-CP可以获取到与第一vBNG-UP断开连接的故障信息。
步骤S602，控制面向用户面选择决策点发送第一通知消息。
具体地，在vBNG-CP检测到与第一vBNG-UP的连接状态是断开的情况下，vBNG-CP可以向用户面选择决策点USF发送用于通知第一vBNG-UP故障的通知消息。
步骤S603，用户面选择决策点向控制面发送第一指示信息。
具体地，在用户面选择决策点USF接收到来自vBNG-CP的关于第一vBNG-UP故障的通知消息后，USF可以根据每个用户面的负载情况、SLA等要求来决策出替换第一vBNG-UP目标vBNG-UP。比如说，若用户设备需要更高级别的SLA服务，则可以根据每个用户面的SLA水平为用户设备决策出满足要求的用户面。所以，在满足负载均衡和SLA，以及提高网络利用率等要求的情况下，USF可以从多个vBNG-UP中决策出目标vBNG-UP是第二 vBNG-UP。因此，USF可以向vBNG-CP发送用于替换故障的第一vBNG-UP的目标用户面是第二vBNG-UP的指示信息。
步骤S604，控制面向第二用户面发送用户表项。
具体地，在vBNG-CP接收到来自USF的第一指示信息后，vBNG-CP可以知道在用于替换第一vBNG-UP的目标用户面是第二vBNG-UP，则vBNG-CP可以根据第一指示信息向第二vBNG-UP发送用户表项。
步骤S605，控制面向用户面选择决策点发送用户表项迁移成功的通知消息。
具体地，在vBNG-CP向第二vBNG-UP发送用户表项后，vBNG-CP向USF发送的用户表项迁移成功的第二通知消息，第二通知消息用于表征vBNG-CP已经向第二vBNG-UP发送了用户表项，该通知消息用于USF触发软件定义网络SDN控制器将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
步骤S606，用户面选择决策点向软件定义网络控制器发送第一迁移请求。
具体地，在USF接收来自vBNG-CP的用户表项迁移成功的第二通知消息后，USF向SDN控制器发送用于请求将用户流量从第一vBNG-UP迁移到第二vBNG-UP的信息。
步骤S607，软件定义网络控制器控制切换点将用户流量从第一用户面迁移到第二用户面。
具体地，在SDN控制器接收来自USF的第一迁移请求后，SDN控制器控制SF将用户对应的虚拟局域网VLAN或者双层虚拟局域网QinQ绑定到第二vBNG-UP对应的接口上，这样可以将用户流量从第一vBNG-UP迁移到第二vBNG-UP上。
因此，在vBNG-CP感知第一vBNG-UP故障的情况下，用户面设备可以通过第二用户面接入网络，从而进行数据报文的转发。
请参见图7，图7是本申请实施例提供的另一种宽带连接的流程示意图，进一步的，该方法可以基于图2A所示的框架来实现，该方法至少包括如下步骤：
用户设备可以按照如图2B所示的流程示意图从第三用户面接入网络后，并在USF根据SLA判断应该从第一用户面接入网络的情况，将用户流量从第三用户面迁移到第一用户面。因此，用户设备后续的转发报文可以直接转发至第一用户面。
当第一用户面因为接口故障、接线板故障或者整机故障而导致用户设备掉线，连接不上网络的情况，可以按照如下步骤保持用户设备的宽带连接不中断。
步骤S701：软件定义网络控制器获取第一用户面的故障信息。
具体地，软件定义网络SDN控制器可以实时检测与第一虚拟宽带接入网关用户面vBNG-UP之间的连接状态，当第一vBNG-UP因为发生故障与SDN控制器之间的连接断开后，SDN控制器可以检测到与第一vBNG-UP的连接状态为断开连接，则SDN控制器可以获取到与第一vBNG-UP断开连接的故障信息。
步骤S702，软件定义网络控制器向用户面选择决策点发送第一通知消息。
具体地，在SDN控制器检测到与第一vBNG-UP的连接状态是断开的情况下，SDN控制器可以向用户面选择决策点USF发送用于通知第一vBNG-UP故障的通知消息。
步骤S703，用户面选择决策点向控制面发送第一指示信息。
具体地，在用户面选择决策点USF接收到来自SDN控制器的关于第一vBNG-UP故障的通知消息后，详细描述可参考步骤S603，此处不再赘述。
步骤S704，控制面向第二用户面发送用户表项。
具体地，详细描述可参考步骤S604，此处不再赘述。
步骤S705，控制面向用户面选择决策点发送用户表项迁移成功的通知消息。
具体地，详细描述可参考步骤S605，此处不再赘述。
步骤S706，用户面选择决策点向软件定义网络控制器发送第一迁移请求。
具体地，详细描述可参考步骤S606，此处不再赘述。
步骤S707，软件定义网络控制器控制切换点将用户流量从第一用户面迁移到第二用户面。
具体地，详细描述可参考步骤S607，此处不再赘述。
因此，在SDN控制器感知第一vBNG-UP故障的情况下，用户面设备可以通过第二用户面接入网络，从而进行数据报文的转发。
请参见图8，图8是本申请实施例提供的一种宽带连接的流程示意图，进一步的，该方法可以基于图2A所示的框架来实现，该方法至少包括如下步骤：
用户设备可以按照如图2B所示的流程示意图从第三用户面接入网络后，并且在USF根据SLA判断应该从第一用户面接入网络的情况，将用户流量从第三用户面迁移到第一用户面。因此，用户设备后续的转发报文可以直接转发至第一用户面。
当第一用户面因为接口故障、接线板故障或者整机故障而导致用户设备掉线，连接不上网络的情况，可以按照如下步骤保持用户设备的宽带连接不中断。
步骤S801：控制面获取第一用户面的故障信息。
具体地，详细描述可参考步骤601，此处不再赘述。
步骤S802，控制面向用户面选择决策点发送第一通知消息。
具体地，详细描述可参考步骤602，此处不再赘述。
步骤S803，用户面选择决策点向控制面发送第一指示信息。
具体地，在详细描述可参考步骤603，此处不再赘述。
步骤S804，控制面向第二用户面发送用户表项。
具体地，详细描述可参考步骤604，此处不再赘述。
步骤S805，控制面向软件定义网络控制器发送第一迁移请求。
具体地，在vBNG-CP向第二vBNG-UP发送用户表项后，vBNG-CP向SDN控制器发送用于请求将用户流量从第一vBNG-UP迁移到第二vBNG-UP的信息。
步骤S806，软件定义网络控制器控制切换点将用户流量从第一用户面迁移到第二用户面。
具体地，在SDN控制器接收来自vBNG-CP的第一迁移请求后，SDN控制器控制SF将用户对应的虚拟局域网VLAN或者双层虚拟局域网QinQ绑定到第二vBNG-UP对应的接口上，这样可以将用户流量从第一vBNG-UP迁移到第二vBNG-UP上。
因此，在vBNG-CP感知第一vBNG-UP故障的情况下，用户面设备可以通过第二用户面接入网络，从而进行数据报文的转发。
请参见图9，图9是本申请实施例提供的另一种宽带连接的流程示意图，进一步的，该方法可以基于图2A所示的框架来实现，该方法至少包括如下步骤：
用户设备可以按照如图2B所示的流程示意图从第三用户面接入网络后，并在USF根据SLA判断应该从第一用户面接入网络的情况，将用户流量从第三用户面迁移到第一用户面。因此，用户设备后续的转发报文可以直接转发至第一用户面。
当第一用户面因为接口故障、接线板故障或者整机故障而导致用户设备掉线，连接不上网络的情况，可以按照如下步骤保持用户设备的宽带连接不中断。
步骤S901：软件定义网络控制器获取第一用户面的故障信息。
具体地，详细描述可参考步骤701，此处不再赘述。
步骤S902，软件定义网络控制器向用户面选择决策点发送第一通知消息。
具体地，详细描述可参考步骤702，此处不再赘述。
步骤S903，用户面选择决策点向控制面发送第一指示信息。
具体地，详细描述可参考步骤S603，此处不再赘述。
步骤S904，控制面向第二用户面发送用户表项。
具体地，详细描述可参考步骤S604，此处不再赘述。
步骤S905，控制面向软件定义网络控制器发送第一迁移请求。
具体地，详细描述可参考步骤S805，此处不再赘述。
步骤S906，软件定义网络控制器控制切换点将用户流量从第一用户面迁移到第二用户面。
具体地，详细描述可参考步骤S806，此处不再赘述。
因此，在SDN控制器感知第一vBNG-UP故障的情况下，用户面设备可以通过第二用户面接入网络，从而进行数据报文的转发。
需要说明的是，对USF来说，它可以内置于CP中，也可以内置于SDN控制器中，还可以是一个单独的网元。也即，USF可以与CP为一个设备，或者USF可以与SDN控制器为一个设备，或者USF可以单独为一个设备。本申请实施例不做任何限制。
当USF内置于CP中时，USF确定第二虚拟宽带接入网关用户面vBNG-UP可以认为是CP确定第二虚拟宽带接入网关用户面vBNG-UP。
当USF内置于SDN控制器中时，USF确定第二虚拟宽带接入网关用户面vBNG-UP可以认为是SDN控制器确定第二虚拟宽带接入网关用户面vBNG-UP。
上述详细阐述了本申请实施例的方法，下面提供了本申请实施例的装置。
请参见图10，图10是本申请实施例提供的一种虚拟宽带接入网关控制面装置100的结构示意图，该装置100可以为节点，也可以为节点中的一个器件，例如芯片或者集成电路等，该装置100可以包括接收单元1001和处理单元1002。该虚拟宽带接入网关控制面装置100用于实现前述的保持宽带连接不中断的方法，例如图4至图9所示任意一个实施例的保持宽带连接不中断的方法。可以理解的，本申请各个装置实施例中，对多个单元或者模块的划分仅是一种根据功能进行的逻辑划分，不作为对装置具体的结构的限定。在具体实现中，其中部分功能模块可能被细分为更多细小的功能模块，部分功能模块也可能组合成一个功能模块，但无论这些功能模块是进行了细分还是组合，装置100在保持宽带连接不中断的过程中所执行的大致流程是相同的。例如，上述装置100的接收单元1001、处理单元1002也可以合并为通信单元。通常，每个单元都对应有各自的程序代码(或者说程序指令)，这些单元各自对应的程序代码在处理器上运行时，使得该单元执行相应的流程从而实现相应功能。
在一种具体的实现方式中，该虚拟宽带接入网关控制面装置100可以为图4至图10所示实施例中的vBNG-CP。其中，各个单元的描述如下：
接收单元1001，可以用于接收来自用户面选择决策点USF的第一指示信息，第一指示信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下替代第一vBNG-UP的第二vBNG-UP；具体实现方式请参考图4所示实施例中步骤S403，以及图5所示实施例中步骤S508的详细描述，以及图6所示实施例中步骤S603的详细描述，这里不再赘述。
处理单元1002，可以用于根据第一指示信息向第二vBNG-UP发送用户表项，其中，用 户表项用于所述第二vBNG-UP在所述第一vBNG-UP故障的情况下根据所述用户表项将所述用户接入网络。具体实现方式请参考图4所示实施例中步骤S408，以及图5所示实施例中的步骤S509的详细描述，这里不再赘述。
可以看出，vBNG-CP可以提前获取因第一用户面故障而受影响的用户需要迁移的目标用户面(第二vBNG-UP)，因此vBNG-CP可以提前将用户表项发送给第二vBNG-UP，这样在第一用户面故障时，可以节省发送用户表项给第二vBNG-UP的时间，提高将用户流量从第一vBNG-UP切换到第二vBNG-UP的速度。
在又一种具体的实施方式中，接收单元1001用于接收来自用户面选择决策点USF的第一指示信息之前，接收单元1001，还可以用于获取第一vBNG-UP的故障信息；具体实现方式请参考图6所示实施例中步骤S601的详细描述，以及图8所示实施例中步骤S801的详细描述这里不再赘述。装置100进一步可以包括发送单元1003，用于向USF发送第一通知信息，第一通知信息用于通知第一vBNG-UP故障。具体实现方式请参考图6所示实施例中步骤S602，以及图8所示实施例中步骤S802的详细描述，这里不再赘述。
在又一种具体的实施方式中，接收单元1001用于接收来自用户面选择决策点USF的第一指示信息之后，处理单元1002用于根据第一指示信息向第二vBNG-UP发送用户表项之后，接收单元1001，还可以用于获取第一vBNG-UP的故障信息。具体实现方式请参考图4所示实施例中步骤S406的详细描述，这里不再赘述。
在又一种具体的实施方式中，接收单元1001用于接收来自用户面选择决策点USF的第一指示信息之后，处理单元1002用于根据第一指示信息向第二vBNG-UP发送用户表项之前，接收单元1001，还用于接收第二vBNG-UP在用户流量从第一vBNG-UP迁移到第二vBNG-UP后发送的通知消息，通知消息用于指示vBNG-CP向第二vBNG-UP发送用户表项。具体实现方式请参考图5所示实施例中步骤S508，这里不再赘述。
在又一种具体的实施方式中，处理单元1002用于根据第一指示信息向第二vBNG-UP发送用户表项之后，装置100进一步包括发送单元1003，还用于向软件定义网络SDN控制器发送第一迁移请求，第一迁移请求用于请求将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图8所示实施例中步骤S805，以及图9所示实施例中步骤S905的详细描述，这里不再赘述。
在又一种具体的实施方式中，处理单元1002用于根据第一指示信息向第二vBNG-UP发送用户表项之后，装置100进一步包括发送单元1003，还用于向USF发送用户表项迁移成功的通知消息，通知消息用于USF触发SDN控制器将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图6所示实施例中步骤S605，以及图7所示实施例中步骤S705的详细描述，这里不再赘述。
需要说明的是，各个单元的实现及有益效果还可以对应参照图4至图10所示的方法实施例的相应描述。
请参见图11，图11是本申请实施例提供的一种软件定义网络控制器装置110的结构示意图，该装置110可以为节点，也可以为节点中的一个器件，例如芯片或者集成电路等，该装置110可以包括接收单元1101和处理单元1102。该保持宽带连接不中断的装置110用于实现前述的保持宽带连接不中断的方法，例如图4至图10所示任意一个实施例的保持宽带连接不中断的方法。
可以理解的，本申请各个装置实施例中，对多个单元或者模块的划分仅是一种根据功能 进行的逻辑划分，不作为对装置具体的结构的限定。在具体实现中，其中部分功能模块可能被细分为更多细小的功能模块，部分功能模块也可能组合成一个功能模块，但无论这些功能模块是进行了细分还是组合，装置110在保持宽带连接不中断的过程中所执行的大致流程是相同的。例如，上述装置110的接收单元1101、处理单元1102也可以合并为通信单元。通常，每个单元都对应有各自的程序代码(或者说程序指令)，这些单元各自对应的程序代码在处理器上运行时，使得该单元执行相应的流程从而实现相应功能。
在一些具体的实现方式中，该保持宽带连接不中断的装置110可以为图4至图10所示实施例中的SDN控制器，其中，各个单元的描述如下：
接收单元1101，用于接收第一迁移请求，其中，第一迁移请求用于请求在第一vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP；具体实现方式请参考图4所示实施例中步骤S405，以及图5所示实施例中步骤S504，以及图6所示实施例中步骤S607的详细描述，以及图7所示实施例中步骤S707的详细描述，以及图8所示实施例中步骤S807的详细描述，这里不再赘述。
处理单元1102，用于控制切换点SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图6所示实施例中步骤S607的详细描述，这里不再赘述。
可以看出，SDN控制器可以在第一vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP，保证了用户没有感知到第一vBNG-UP故障，保持了用户的宽带连接不中断，提高了用户的使用满意度。
在又一种具体的实施方式中，接收单元1101用于接收第一迁移请求之前，接收单元，还用于获取第一虚拟宽带接入网关用户面vBNG-UP的故障信息；具体实现方式请参考图6所示实施例中步骤S601的详细描述，以及图8所示实施例中步骤S801的详细描述，这里不再赘述。装置110进一步包括发送单元1103，用于向用户面选择决策点USF发送第一通知信息，第一通知信息用于通知第一vBNG-UP故障。具体实现方式请参考图6所示实施例中步骤S602，图8所示实施例中步骤S802的详细描述，这里不再赘述。
在又一种可能的实施方式中，接收单元1101，具体用于接收来自vBNG-CP的第一迁移请求。具体实现方式请参考图8所示实施例中步骤S806的详细描述，这里不再赘述。
在又一种可能的实施方式中，接收单元1101，具体用于接收来自USF的第一迁移请求。具体实现方式请参考图6所示实施例中步骤S607，以及图7所示实施例中步骤S707的详细描述，这里不再赘述。
在又一种可能的实施方式中，处理单元1102，具体用于向SF发送第二vBNG-UP的路径信息控制切换点SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP，路径信息用于SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图4所示实施例中步骤S405，以及图5所示实施例中步骤S505的详细描述，这里不再赘述。
在又一种可能的实施方式中，处理单元1102，具体用于控制SF将用户对应的虚拟局域网VLAN或者双层虚拟局域网QinQ绑定在第二vBNG-UP对应的接口上，以将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图6所示实施例中步骤S607，以及图7所示实施例中步骤S707的详细描述，这里不再赘述。
需要说明的是，各个单元的实现及有益效果还可以对应参照图4至图10所示的方法实施例的相应描述。
请参见图12，图12是本申请实施例提供的一种用户面选择决策点装置120的结构示意 图，该装置120可以为节点，也可以为节点中的一个器件，例如芯片或者集成电路等，该装置120可以包括处理单元1201和发送单元1202。该保持宽带连接不中断的装置120用于实现前述的保持宽带连接不中断的方法，例如图4至图10所示任意一个实施例的保持宽带连接不中断的方法。
可以理解的，本申请各个装置实施例中，对多个单元或者模块的划分仅是一种根据功能进行的逻辑划分，不作为对装置具体的结构的限定。在具体实现中，其中部分功能模块可能被细分为更多细小的功能模块，部分功能模块也可能组合成一个功能模块，但无论这些功能模块是进行了细分还是组合，装置120在保持宽带连接不中断的过程中所执行的大致流程是相同的。通常，每个单元都对应有各自的程序代码(或者说程序指令)，这些单元各自对应的程序代码在处理器上运行时，使得该单元执行相应的流程从而实现相应功能。
在一些可能的实现方式中，该用户面选择决策点装置120可以为图4至图10所示实施例中的USF，其中，各个单元的描述如下：
处理单元1201，用于确定第二虚拟宽带接入网关用户面vBNG-UP，其中，第二vBNG-UP为第一vBNG-UP故障后用于替换第一vBNG-UP将用户接入网络的vBNG-UP；具体实现方式请参考图4所示实施例中步骤S401，以及图5所示实施例中的步骤S501的详细描述，这里不再赘述。
发送单元1202，用于向虚拟宽带接入网关控制面vBNG-CP发送第一指示信息，第一指示信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下替代第一vBNG-UP的第二vBNG-UP。具体实现方式请参考图4所示实施例中步骤S402，以及图5所示实施例中的步骤S502的详细描述，以及图6所示实施例中的步骤S603的详细描述，以及图7所示实施例中的步骤S703的详细描述，以及图8所示实施例中的步骤S803的详细描述，以及图9所示实施例中的步骤S903的详细描述，这里不再赘述。
可以看出，USF可以根据各种要求决策出满足负载均衡的目标用户面，使得在第一vBNG-UP故障的情况下可以用目标用户面(第二vBNG-UP)来替换故障的vBNG-UP。提高了网络的利用率和效率，提高了用户的使满意度。
在又一种可能的实施方式中，处理单元1201用于确定第二虚拟宽带接入网关用户面vBNG-UP之前，还包括：接收单元1203，用于接收第一通知消息，第一通知消息用于通知第一vBNG-UP故障。具体实现方式请参考图6所示实施例中步骤S602，以及图7所示实施例中的步骤S702的详细描述，以及图8所示实施例中步骤S802的详细描述，以及图9所示实施例中的步骤S902的详细描述，这里不再赘述。
在又一种可能的实施方式中，处理单元1201用于确定第二虚拟宽带接入网关用户面vBNG-UP之后，发送单元1202，还用于向软件定义网络SDN控制器发送第一迁移请求，第一迁移请求用于请求在第一vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图4所示实施例中步骤S404，以及图5所示实施例中步骤S503的详细描述，这里不再赘述。在又一种可能的实施方式中，发送单元1202用于向vBNG-CP发送第一指示信息之后，接收单元1203，还用于接收来自vBNG-CP的第二通知消息，第二通知消息用于表征vBNG-CP已经向第二vBNG-UP发送了用户表项；具体实现方式请参考图6所示实施例中步骤S605，以及图7所示实施例中步骤S705的详细描述，这里不再赘述。
发送单元1202，还用于根据第二通知消息向SDN控制器发送第一迁移请求，第一迁移请求用于SDN控制器将用户流量从第一vBNG-UP迁移到第二vBNG-UP；其中，用户表项 为用户从第二vBNG-UP接入网络的信息，用户表项用于第二vBNG-UP在第一vBNG-UP故障的情况保持用户的宽带连接。具体实现方式请参考图6所示实施例中步骤S606，以及图7所示实施例中步骤S706的详细描述，这里不再赘述。
在又一种可能的实施方式中，接收单元1203，具体用于接收来自vBNG-CP的第一通知消息。具体实现方式请参考图6所示实施例中步骤S603，以及图8所示实施例中步骤S803这里不再赘述。
在又一种可能的实施方式中，接收单元1203，具体用于接收来自SDN控制器的第一通知消息。具体实现方式请参考图7所示实施例中步骤S703，图9所示实施例中步骤S903的详细描述，这里不再赘述。
在又一种可能的实施方式中，处理单元1201，具体用于根据业务服务水平协议SLA从多个vBNG-UP中确定第二vBNG-UP。具体实现方式请参考图4所示实施例中步骤S401，以及图5所示实施例中步骤S501这里不再赘述。
需要说明的是，各个单元的实现及有益效果还可以对应参照图4至图10所示的方法实施例的相应描述。
请参见图13，图13是本申请实施例提供的一种切换点装置130的结构示意图，该装置130可以为节点，也可以为节点中的一个器件，例如芯片或者集成电路等，该装置130可以包括接收单元1301、获取单元1302和处理单元1303。该保持宽带连接不中断的装置130用于实现前述的保持宽带连接不中断的方法，例如图4至图10所示任意一个实施例的保持宽带连接不中断的方法。
可以理解的，本申请各个装置实施例中，对多个单元或者模块的划分仅是一种根据功能进行的逻辑划分，不作为对装置具体的结构的限定。在具体实现中，其中部分功能模块可能被细分为更多细小的功能模块，部分功能模块也可能组合成一个功能模块，但无论这些功能模块是进行了细分还是组合，装置130在保持宽带连接不中断的过程中所执行的大致流程是相同的。通常，每个单元都对应有各自的程序代码(或者说程序指令)，这些单元各自对应的程序代码在处理器上运行时，使得该单元执行相应的流程从而实现相应功能。
在一些可能的实现方式中，该保持宽带连接不中断的装置130可以为图4至图10所示实施例中的SF，其中，各个单元的描述如下：
接收单元1301，用于接收SDN控制器发送的路径信息，其中，路径信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP；具体实现方式请参考图4所示实施例中步骤S405的详细描述，以及图7所示实施例中步骤S705的详细描述，这里不再赘述。
获取单元1302，用于获取第一vBNG-UP的故障信息；具体实现方式请参考图4所示实施例中步骤S406的详细描述，以及图7所示实施例中步骤S706的详细描述，这里不再赘述。
处理单元1303，用于根据路径信息将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图4所示实施例中步骤S404的详细描述，以及图7所示实施例中步骤S704的详细描述，这里不再赘述。
可以看出，SF可以实时监测与第一vBNG-UP的连接状态，使得可以实时感知到第一vBNG-UP发生故障，当第一vBNG-UP发生故障时，可以快速将用户流量从故障的第一vBNG-UP迁移到目标用户面(第二vBNG-UP)。在用户没有感知到第一vBNG-UP故障的情况下完成流量迁移，提高了用户的使用感受。
在又一种可能的实施方式中，处理单元1303，具体用于根据路径信息将用户对应的虚拟局域网VLAN或者双层虚拟局域网QinQ绑定在第二vBNG-UP对应的接口上来完成将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图6所示实施例中步骤S607的详细描述，以及图8所示实施例中步骤S806的详细描述，以及图9所示实施例中步骤S906的详细描述，这里不再赘述。
需要说明的是，各个单元的实现及有益效果还可以对应参照图4至图10所示的方法实施例的相应描述。
请参见图14，图14是本申请实施例提供的一种宽带连接系统140的示意图系统140包括虚拟宽带接入网关控制面vBNG-CP装置1401和用户面选择决策点USF装置1402，其中，各个系统单元的描述如下：
USF装置，用于向vBNG-CP装置发送第一指示信息，第一指示信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下替代第一vBNG-UP的第二vBNG-UP。具体实现方式请参考图4所示实施例中步骤S402，以及图5所示实施例中的步骤S502的详细描述，这里不再赘述。
vBNG-CP装置，用于根据第一指示信息向第二vBNG-UP发送用户表项，其中，用户表项用于所述第二vBNG-UP在所述第一vBNG-UP故障的情况下根据所述用户表项将所述用户接入网络。具体实现方式请参考图4所示实施例中步骤S408，以及图5所示实施例中的步骤S509的详细描述，这里不再赘述。
在一种具体的实现方式中，系统还包括：
软件定义网络SDN控制器装置1403，用于接收第一迁移请求，其中，第一迁移请求用于请求在第一vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP；
切换点SF装置1404，用于根据路径信息将用户流量从第一vBNG-UP迁移到第二vBNG-UP，其中，路径信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
在一种具体的实现方式中，USF装置用于向vBNG-CP装置发送第一指示信息之前，vBNG-CP装置，还用于获取第一vBNG-UP的故障信息；具体实现方式请参考图4所示实施例中步骤S402，以及图5所示实施例中步骤S502的详细描述，这里不再赘述。
vBNG-CP装置，还用于向USF发送第一通知信息，第一通知信息用于通知第一vBNG-UP故障。具体实现方式请参考图6所示实施例中步骤S602，以及图8所示实施例中步骤S802的详细描述，这里不再赘述。
在一种具体的实现方式中，USF装置用于向vBNG-CP装置发送第一指示信息之后，vBNG-CP装置用于根据第一指示信息向第二vBNG-UP发送用户表项之前，vBNG-CP装置，还用于获取第一vBNG-UP的故障信息。具体实现方式请参考图4所示实施例中步骤S406，以及图7所示实施例中步骤S706的详细描述，这里不再赘述。
在一种具体的实现方式中，USF装置用于向vBNG-CP装置发送第一指示信息之后，vBNG-CP装置用于根据第一指示信息向第二vBNG-UP发送用户表项之前，vBNG-CP装置，还用于接收第二vBNG-UP在用户流量从第一vBNG-UP迁移到第二vBNG-UP后发送的通知消息，通知消息用于指示vBNG-CP向第二vBNG-UP发送用户表项。具体实现方式请参考图5所示实施例中步骤S508，这里不再赘述。
在一种具体的实现方式中，vBNG-CP装置用于根据第一指示信息向第二vBNG-UP发送用户表项之后，vBNG-CP装置，还用于向软件定义网络SDN控制器发送第一迁移请求，第一迁移请求用于请求将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图4所示实施例中步骤S404，以及图7所示实施例中步骤S704，以及图9所示实施例中步骤S904的详细描述，这里不再赘述。
在一种具体的实现方式中，vBNG-CP装置用于根据第一指示信息向第二vBNG-UP发送用户表项之后，vBNG-CP装置，还用于向USF发送用户表项迁移成功的通知消息，通知消息用于USF触发SDN控制器将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图6所示实施例中步骤S605，这里不再赘述。
在一种具体的实现方式中，USF装置还用于确定第二虚拟宽带接入网关用户面vBNG-UP。具体实现方式请参考图4所示实施例中步骤S401，以及图5所示实施例中的步骤S501的详细描述，这里不再赘述。
在一种具体的实现方式中，USF装置用于确定第二虚拟宽带接入网关用户面vBNG-UP之前，USF装置还用于接收第一通知消息，第一通知消息用于通知第一vBNG-UP故障。具体实现方式请参考图6所示实施例中步骤S602，以及图8所示实施例中步骤S802的详细描述，这里不再赘述。
在一种具体的实现方式中，USF装置用于确定第二虚拟宽带接入网关用户面vBNG-UP之后，USF装置还用于向软件定义网络SDN控制器发送第一迁移请求，第一迁移请求用于请求在第一vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图4所示实施例中步骤S404，以及图7所示实施例中步骤S704的详细描述，以及图9所示实施例中步骤S904的详细描述，这里不再赘述。
在一种具体的实现方式中，USF装置用于确定第二虚拟宽带接入网关用户面vBNG-UP之后，USF装置还用于接收来自vBNG-CP的第二通知消息，第二通知消息用于表征vBNG-CP已经向第二vBNG-UP发送了用户表项；具体实现方式请参考图6所示实施例中步骤S602，以及图8所示实施例中步骤S802的详细描述，这里不再赘述。
USF装置还用于根据第二通知消息向SDN控制器发送第一迁移请求。第一迁移请求用于SDN控制器将用户流量从第一vBNG-UP迁移到第二vBNG-UP；其中，用户表项为用户从第二vBNG-UP接入网络的信息，用户表项用于第二vBNG-UP在第一vBNG-UP故障的情况保持用户的宽带连接。具体实现方式请参考图6所示实施例中步骤S606，这里不再赘述。
在一种具体的实现方式中，USF装置具体用于根据业务服务水平协议SLA从多个vBNG-UP中确定第二vBNG-UP。具体实现方式请参考图4所示实施例中步骤S401，以及图5所示实施例中步骤S501这里不再赘述。
在一种具体的实现方式中，SDN控制器用于接收第一迁移请求之前，SDN控制器还用于获取第一虚拟宽带接入网关用户面vBNG-UP的故障信息；
SDN控制器还用于向USF发送第一通知信息，第一通知信息用于通知第一vBNG-UP故障。具体实现方式请参考图6所示实施例中步骤S602，以及图8所示实施例中步骤S802的详细描述，这里不再赘述。
在一种具体的实现方式中，SDN控制器还用于控制切换点SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图6所示实施例中步骤S607的详细描述，这里不再赘述。
在一种具体的实现方式中，SDN控制器具体用于向SF发送第二vBNG-UP的路径信息来 控制切换点SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP，路径信息用于SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图4所示实施例中步骤S405，以及图7所示实施例中步骤S705的详细描述，这里不再赘述。
在一种具体的实现方式中，SDN控制器具体用于控制SF将用户对应的虚拟局域网VLAN或者双层虚拟局域网QinQ绑定在第二vBNG-UP对应的接口上，以将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图6所示实施例中步骤S607，以及图8所示实施例中步骤S806的详细描述，这里不再赘述。
在一种具体的实现方式中，SF还用于接收SDN控制器发送的路径信息。具体实现方式请参考图4所示实施例中步骤S405的详细描述，以及图7所示实施例中步骤S705的详细描述，这里不再赘述。
在一种具体的实现方式中，SF还用于获取第一vBNG-UP的故障信息。具体实现方式请参考图4所示实施例中步骤S406的详细描述，以及图7所示实施例中步骤S706的详细描述，这里不再赘述。
在一种具体的实现方式中，SF具体用于根据路径信息将用户对应的虚拟局域网VLAN或者双层虚拟局域网QinQ绑定在第二vBNG-UP对应的接口上来完成将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图6所示实施例中步骤S607的详细描述，以及图8所示实施例中步骤S806的详细描述，以及图9所示实施例中步骤S906的详细描述，这里不再赘述。
需要说明的是，各个单元的实现及有益效果还可以对应参照图4至图9所示的方法实施例的响应描述。
请参见图15，图15是本申请实施例提供的一种电子设备150的结构示意图，该设备150可以为节点，也可以为节点中的一个器件，例如芯片或者集成电路等。该设备150可以包括至少一个存储器1501和至少一个处理器1502。可选的，还可以包含总线1503。进一步可选的，还可以包括通信接口1504，其中，存储器1501、处理器1502和通信接口1504通过总线1503相连。
其中，存储器1501用于提供存储空间，存储空间中可以存储操作系统和计算机程序等数据。存储器1501可以是随机存储记忆体(random access memory，RAM)、只读存储器(read-only memory，ROM)、可擦除可编程只读存储器(erasable programmable read only memory，EPROM)、或便携式只读存储器(compact disc read-only memory，CD-ROM)等等中的一种或者多种的组合。
处理器1502是进行算术运算和/或逻辑运算的模块，具体可以是中央处理器(central processing unit，CPU)、图片处理器(graphics processing unit，GPU)、微处理器(microprocessor unit，MPU)、专用集成电路(Application Specific Integrated Circuit，ASIC)、现场可编程逻辑门阵列(Field Programmable Gate Array，FPGA)、复杂可编程逻辑器件(Complex programmable logic device，CPLD)等处理模块中的一种或者多种的组合。
通信接口1504用于接收外部发送的数据和/或向外部发送数据，可以为包括诸如以太网电缆等的有线链路接口，也可以是无线链路(Wi-Fi、蓝牙、通用无线传输等)接口。可选的，通信接口1504还可以包括与接口耦合的发射器(如射频发射器、天线等)，或者接收器等。
该设备150中的处理器1502用于读取存储器1501中存储的计算机程序，用于执行前述的保持宽带连接不中断方法，例如图4至图10任意一个实施例所描述的保持宽带连接不中断 的方法。
在一些可能的实现方式中，该电子设备150可以为图4至图10所示实施例中的vBNG-CP设备，该设备150中的处理器1502用于读取存储器1501中存储的计算机程序，用于执行以下操作：
通过通信接口1504接收来自用户面选择决策点USF的第一指示信息，第一指示信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下替代第一vBNG-UP的第二vBNG-UP；具体实现方式请参考图4所示实施例中步骤S402，以及图5所示实施例中步骤S502的详细描述，这里不再赘述。
根据第一指示信息通过通信接口1504向第二vBNG-UP发送用户表项，其中，用户表项用于所述第二vBNG-UP在所述第一vBNG-UP故障的情况下根据所述用户表项将所述用户接入网络。具体实现方式请参考图4所示实施例中步骤S408，以及图5所示实施例中的步骤S509的详细描述，这里不再赘述。
可以看出，vBNG-CP可以提前获取因第一用户面故障而受影响的用户需要迁移的目标用户面(第二vBNG-UP)，因此vBNG-CP可以提前将用户表项发送给第二vBNG-UP，这样在第一用户面故障时，可以节省发送用户表项给第二vBNG-UP的时间，提高将用户流量从第一vBNG-UP切换到第二vBNG-UP的速度。
在一种可能的实施方式中，通过通信接口1504接收来自用户面选择决策点USF的第一指示信息之前，处理器1502还用于：
通过通信接口1504获取第一vBNG-UP的故障信息；vBNG-CP向USF发送第一通知信息，第一通知信息用于通知第一vBNG-UP故障。具体实现方式请参考图6所示实施例中步骤S602，以及图8所示实施例中步骤S802的详细描述，这里不再赘述。
可以看出，vBNG-CP可以实时监测与第一vBNG-UP的连接状态，使得可以实时感知到第一vBNG-UP发生故障，当第一vBNG-UP发生故障时，可以向USF发送故障消息，以使USF可以查询要迁移的目标用户面。
在一种可能的实施方式中，通过通信接口1504接收来自用户面选择决策点USF的第一指示信息之后，根据第一指示信息通过通信接口1504向第二vBNG-UP发送用户表项之前，处理器1502还用于：
获取第一vBNG-UP的故障信息。具体实现方式请参考图4所示实施例中步骤S406，以及图7所示实施例中步骤S706的详细描述，这里不再赘述。
在一种可能的实施方式中，通过通信接口1504接收来自用户面选择决策点USF的第一指示信息之后，根据第一指示信息通过通信接口1504向第二vBNG-UP发送用户表项之前，处理器1502还用于：
通过通信接口1504接收第二vBNG-UP在用户流量从第一vBNG-UP迁移到第二vBNG-UP后发送的通知消息，通知消息用于指示vBNG-CP向第二vBNG-UP发送用户表项。具体实现方式请参考图5所示实施例中步骤S508，这里不再赘述。
在一种可能的实施方式中，根据第一指示信息通过通信接口1504向第二vBNG-UP发送用户表项之后，处理器1502还用于：
通过通信接口1504向软件定义网络SDN控制器发送第一迁移请求，第一迁移请求用于请求将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
在一种可能的实施方式中，根据第一指示信息通过通信接口1504向第二vBNG-UP发送用户表项之后，处理器1502还用于：
通过通信接口1504向USF发送用户表项迁移成功的通知消息，通知消息用于USF触发SDN控制器将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图4所示实施例中步骤S404，以及图7所示实施例中步骤S704，以及图9所示实施例中步骤S904的详细描述，这里不再赘述。
在一些可能的实现方式中，该电子设备150可以为图4至图10所示实施例中的SDN控制器设备，该设备150中的处理器1502用于读取存储器1501中存储的计算机程序，用于执行以下操作：
通过通信接口1504接收第一迁移请求，其中，第一迁移请求用于请求在第一vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP；具体实现方式请参考图4所示实施例中步骤S404，以及图8所示实施例中步骤S808，以及图9所示实施例中步骤S905的详细描述，的详细描述，这里不再赘述。
控制切换点SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图6所示实施例中步骤S607的详细描述，这里不再赘述。
可以看出，SDN控制器可以在第一vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP，保证了用户没有感知到第一vBNG-UP故障，保持了用户的宽带连接不中断，提高了用户的使用满意度。
在一种可能的实施方式中，通过通信接口1504接收第一迁移请求之前，处理器1502还用于：
获取第一虚拟宽带接入网关用户面vBNG-UP的故障信息；通过通信接口1504向用户面选择决策点USF发送第一通知信息，第一通知信息用于通知第一vBNG-UP故障。具体实现方式请参考图6所示实施例中步骤S602，以及图8所示实施例中步骤S802的详细描述，这里不再赘述。
可以看出，SDN控制器可以实时监测与第一vBNG-UP的连接状态，使得可以实时感知到第一vBNG-UP发生故障，当第一vBNG-UP发生故障时，可以向USF发送故障消息，以使USF可以查询要迁移的目标用户面。
在一种可能的实施方式中，处理器1502具体用于：通过通信接口1504接收来自vBNG-CP的第一迁移请求。具体实现方式请参考图8所示实施例中步骤S805的详细描述，这里不再赘述。
在一种可能的实施方式中，处理器1502具体用于：通过通信接口1504接收来自USF的第一迁移请求。具体实现方式请参考图6所示实施例中步骤S606，这里不再赘述。
在一种可能的实施方式中，处理器1502具体用于：通过通信接口1504向SF发送第二vBNG-UP的路径信息来控制切换点SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP，路径信息用于SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图4所示实施例中步骤S405，以及图7所示实施例中步骤S705的详细描述，这里不再赘述。
在一种可能的实施方式中，处理器1502具体用于：控制SF将用户对应的虚拟局域网VLAN或者双层虚拟局域网QinQ绑定在第二vBNG-UP对应的接口上，以将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图6所示实施例中步骤S607，以及图8所示实施例中步骤S806的详细描述，这里不再赘述。
在一些可能的实现方式中，该电子设备150可以为图4至图10所示实施例中的USF设 备，该设备150中的处理器1502用于读取存储器1501中存储的计算机程序，用于执行以下操作：
确定第二虚拟宽带接入网关用户面vBNG-UP，其中，第二vBNG-UP为第一vBNG-UP故障后用于替换第一vBNG-UP将用户接入网络的vBNG-UP；具体实现方式请参考图4所示实施例中步骤S401，以及图5所示实施例中的步骤S501的详细描述，这里不再赘述。USF向虚拟宽带接入网关控制面vBNG-CP发送第一指示信息，第一指示信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下替代第一vBNG-UP的第二vBNG-UP。具体实现方式请参考图4所示实施例中步骤S402，以及图5所示实施例中的步骤S502的详细描述，这里不再赘述。
可以看出，USF可以根据各种要求决策出满足负载均衡的目标用户面，使得在第一vBNG-UP故障的情况下可以用目标用户面(第二vBNG-UP)来替换故障的vBNG-UP。提高了网络的利用率和效率，提高了用户的使满意度。
在一种可能的实施方式中，确定第二虚拟宽带接入网关用户面vBNG-UP之前，处理器1502还用于：通过通信接口1504接收第一通知消息，第一通知消息用于通知第一vBNG-UP故障。具体实现方式请参考图6所示实施例中步骤S602，以及图8所示实施例中步骤S802的详细描述，这里不再赘述。
在一种可能的实施方式中，USF确定第二虚拟宽带接入网关用户面vBNG-UP之后，处理器1502还用于：通过通信接口1504向软件定义网络SDN控制器发送第一迁移请求，第一迁移请求用于请求在第一vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图4所示实施例中步骤S404，以及图7所示实施例中步骤S704的详细描述，以及图9所示实施例中步骤S904的详细描述，这里不再赘述。
在一种可能的实施方式中，确定第二虚拟宽带接入网关用户面vBNG-UP之后，处理器1502还用于：通过通信接口1504接收来自vBNG-CP的第二通知消息，第二通知消息用于表征vBNG-CP已经向第二vBNG-UP发送了用户表项；具体实现方式请参考图6所示实施例中步骤S602，以及图8所示实施例中步骤S802的详细描述，这里不再赘述。
USF根据第二通知消息向SDN控制器发送第一迁移请求，第一迁移请求用于SDN控制器将用户流量从第一vBNG-UP迁移到第二vBNG-UP；其中，用户表项为用户从第二vBNG-UP接入网络的信息，用户表项用于第二vBNG-UP在第一vBNG-UP故障的情况保持用户的宽带连接。具体实现方式请参考图6所示实施例中步骤S606，这里不再赘述。
在一种可能的实施方式中，处理器1502通过通信接口1504接收第一通知消息，具体用于：
接收来自vBNG-CP的第一通知消息。具体实现方式请参考图6所示实施例中步骤S602，以及图8所示实施例中步骤S802，这里不再赘述。
在一种可能的实施方式中，处理器1502通过通信接口1504接收第一通知消息，具体用于：
接收来自SDN控制器的第一通知消息。具体实现方式请参考图7所示实施例中步骤S702，图9所示实施例中步骤S902，这里不再赘述。
在一种可能的实施方式中，处理器1502确定第二vBNG-UP，具体用于：根据业务服务水平协议SLA从多个vBNG-UP中确定第二vBNG-UP。具体实现方式请参考图4所示实施例中步骤S401，以及图5所示实施例中步骤S501这里不再赘述。
在一些可能的实现方式中，该电子设备150可以为图4至图10所示实施例中的SF设备，该设备150中的处理器1502用于读取存储器1501中存储的计算机程序，用于执行以下操作：
通过通信接口1504接收软件定义网络SDN控制器发送的路径信息，其中，路径信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP；具体实现方式请参考图4所示实施例中步骤S405的详细描述，以及图7所示实施例中步骤S705的详细描述，这里不再赘述。
获取第一vBNG-UP的故障信息；SF根据路径信息将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图4所示实施例中步骤S406的详细描述，以及图7所示实施例中步骤S706的详细描述，这里不再赘述。
可以看出，SF可以实时监测与第一vBNG-UP的连接状态，使得可以实时感知到第一vBNG-UP发生故障，当第一vBNG-UP发生故障时，可以快速将用户流量从故障的第一vBNG-UP迁移到目标用户面(第二vBNG-UP)。在用户没有感知到第一vBNG-UP故障的情况下完成流量迁移，提高了用户的使用感受。
在一种可能的实施方式中，处理器1502具体用于：根据路径信息将用户对应的虚拟局域网VLAN或者双层虚拟局域网QinQ绑定在第二vBNG-UP对应的接口上来完成将用户流量从第一vBNG-UP迁移到第二vBNG-UP。具体实现方式请参考图6所示实施例中步骤S607的详细描述，以及图8所示实施例中步骤S806的详细描述，以及图9所示实施例中步骤S906的详细描述，这里不再赘述。
需要说明的是，各个单元的实现及有益效果还可以对应参照图4至图10所示的方法实施例的相应描述。
本申请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，当所述计算机程序在一个或多个处理器上运行时，执行如图4至图10所示的任意一种实施例所述的方法。
本申请实施例还提供了一种芯片系统，所述芯片系统包括至少一个处理器，存储器和接口电路，所示接口电路用于为所述至少一个处理器提供信息输入/输出，所述至少一个存储器中存储有计算机程序，当所述计算机程序在一个或多个处理器上运行时，执行如图4至图10所示的任意一种实施例所述的方法。
本申请实施例还提供一种计算机程序产品，当所述计算机程序产品在一个或多个处理器上运行时，可以执行如图4至图10所示的任意一种实施例所描述的保持宽带连接不中断方法。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件实现时，可以全部或部分地以计算机指令产品的形式实现。在计算机上加载和执行该计算机指令时，可以全部或部分地实现本申请实施例所描述的流程或功能。该计算机可以是通用计算机、专用计算机、计算机网络、或者其它可编程装置。该计算机指令可以存储在计算机可读存储介质中，或者通过计算机可读存储介质进行传输。该计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可用介质集成的服务器、数据中心等数据存储设备。可用介质可以是磁性介质，(例如，软盘、硬盘、磁带)、光介质(例如，DVD)、或者半导体介质(例如，固态硬盘(solid state disk，SSD))等。
本申请方法实施例中的步骤可以根据实际需要进行顺序调整、合并和删减。
本申请装置实施例中的模块可以根据实际需要进行合并、划分和删减。

Claims (50)

  1. 一种宽带连接方法，其特征在于，包括：
    虚拟宽带接入网关控制面vBNG-CP接收来自用户面选择决策点USF的第一指示信息，所述第一指示信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下替代所述第一vBNG-UP的第二vBNG-UP；
    所述vBNG-CP根据所述第一指示信息向所述第二vBNG-UP发送用户表项，其中，所述用户表项用于所述第二vBNG-UP在所述第一vBNG-UP故障的情况下根据所述用户表项将所述用户接入网络。
  2. 根据权利要求1所述的方法，其特征在于，所述虚拟宽带接入网关控制面vBNG-CP接收来自用户面选择决策点USF的第一指示信息之前，还包括：
    所述vBNG-CP获取所述第一vBNG-UP的故障信息；所述vBNG-CP向所述USF发送第一通知信息，所述第一通知信息用于通知所述第一vBNG-UP故障。
  3. 根据权利要求1所述的方法，其特征在于，所述宽带接入网关控制面vBNG-CP接收来自用户面选择决策点USF的第一指示信息之后，所述vBNG-CP根据所述第一指示信息向所述第二vBNG-UP发送用户表项之前，还包括：
    所述vBNG-CP获取所述第一vBNG-UP的故障信息。
  4. 根据权利要求1所述的方法，其特征在于，所述虚拟宽带接入网关控制面vBNG-CP接收来自用户面选择决策点USF的第一指示信息之后，所述vBNG-CP根据所述第一指示信息向所述第二vBNG-UP发送用户表项之前，还包括：
    所述vBNG-CP接收所述第二vBNG-UP在用户流量从第一vBNG-UP迁移到第二vBNG-UP后发送的通知消息，所述通知消息用于指示所述vBNG-CP向所述第二vBNG-UP发送用户表项。
  5. 根据权利要求1或2所述的方法，其特征在于，所述vBNG-CP根据所述第一指示信息向所述第二vBNG-UP发送用户表项之后，还包括：
    所述vBNG-CP向软件定义网络SDN控制器发送第一迁移请求，所述第一迁移请求用于请求将用户流量从所述第一vBNG-UP迁移到所述第二vBNG-UP。
  6. 根据权利要求1或2所述的方法，其特征在于，所述vBNG-CP向所述第二vBNG-UP发送用户表项之后，还包括：
    所述vBNG-CP向所述USF发送所述用户表项迁移成功的通知消息，所述通知消息用于所述USF触发所述SDN控制器将用户流量从第一vBNG-UP迁移到所述第二vBNG-UP。
  7. 一种宽带连接方法，其特征在于，包括：
    软件定义网络SDN控制器接收第一迁移请求，其中，所述第一迁移请求用于请求在第一vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP；
    所述SDN控制器控制切换点SF将用户流量从所述第一vBNG-UP迁移到所述第二vBNG-UP。
  8. 根据权利要求7所述的方法，其特征在于，所述SDN控制器接收第一迁移请求之前，还包括：
    所述SDN控制器获取第一虚拟宽带接入网关用户面vBNG-UP的故障信息；
    所述SDN控制器向用户面选择决策点USF发送第一通知信息，所述第一通知信息用于通知所述第一vBNG-UP故障。
  9. 根据权利要求7或8所述的方法，其特征在于，所述第一迁移请求来自vBNG-CP或者USF。
  10. 根据权利要求7-9任一项所述的方法，其特征在于，所述SDN控制器控制切换点SF将用户流量从所述第一vBNG-UP迁移到所述第二vBNG-UP，包括：
    所述SDN控制器向SF发送第二vBNG-UP的路径信息来控制切换点SF将用户流量从所述第一vBNG-UP迁移到所述第二vBNG-UP，所述路径信息用于SF将用户流量从所述第一vBNG-UP迁移到所述第二vBNG-UP。
  11. 根据权利要求7-9任一项所述的方法，其特征在于，所述SDN控制器控制切换点SF将用户流量从所述第一vBNG-UP迁移到所述第二vBNG-UP，包括：
    所述SDN控制器控制SF将用户对应的虚拟局域网VLAN或者双层虚拟局域网QinQ绑定在所述第二vBNG-UP对应的接口上，以将用户流量从所述第一vBNG-UP迁移到所述第二vBNG-UP。
  12. 一种宽带连接方法，其特征在于，包括：
    用户面选择决策点USF确定第二虚拟宽带接入网关用户面vBNG-UP，其中，所述第二vBNG-UP为第一vBNG-UP故障后用于替换所述第一vBNG-UP保持将用户接入网络的vBNG-UP；
    所述USF向虚拟宽带接入网关控制面vBNG-CP发送第一指示信息，所述第一指示信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下替代所述第一vBNG-UP的第二vBNG-UP。
  13. 根据权利要求12所述的方法，其特征在于，所述用户面选择决策点USF确定第二虚拟宽带接入网关用户面vBNG-UP之前，还包括：
    所述USF接收第一通知消息，所述第一通知消息用于通知所述第一vBNG-UP故障。
  14. 根据权利要求12所述的方法，其特征在于，所述用户面选择决策点USF确定第二虚拟宽带接入网关用户面vBNG-UP之后，还包括：
    所述USF向软件定义网络SDN控制器发送所述第一迁移请求，所述第一迁移请求用于请求在第一vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
  15. 根据权利要求12或13所述的方法，其特征在于，所述USF向vBNG-CP发送第一指示信息之后，还包括：
    所述USF接收来自所述vBNG-CP的第二通知消息，所述第二通知消息用于表征所述vBNG-CP已经向所述第二vBNG-UP发送了所述用户表项；
    所述USF根据所述第二通知消息向SDN控制器发送第一迁移请求，所述第一迁移请求用于所述SDN控制器将用户流量从第一vBNG-UP迁移到所述第二vBNG-UP；
    其中，所述用户表项为用户从所述第二vBNG-UP接入网络的信息，所述用户表项用于所述第二vBNG-UP在第一vBNG-UP故障的情况保持所述用户的宽带连接。
  16. 根据权利要求13所述的方法，其特征在于，所述第一通知消息来自于所述vBNG-CP或者所述SDN控制器。
  17. 根据权利要求12-16任一项所述的方法，其特征在于，所述USF确定第二vBNG-UP，包括：
    所述USF根据业务服务水平协议SLA从多个vBNG-UP中确定第二vBNG-UP。
  18. 根据权利要求12所述的方法，其特征在于，所述USF为内置于SDN控制器中的装置或者所述USF为独立的装置。
  19. 一种宽带连接方法，其特征在于，包括：
    切换点SF接收软件定义网络SDN控制器发送的路径信息，其中，所述路径信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下将用户流量从所述第一vBNG-UP迁移到所述第二vBNG-UP；
    所述SF获取所述第一vBNG-UP的故障信息；
    所述SF根据所述路径信息将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
  20. 根据权利要求19所述的方法，其特征在于，所述切换点SF将用户流量从第一vBNG-UP迁移到第二vBNG-UP，包括：
    所述SF根据所述路径信息将用户对应的虚拟局域网VLAN或者双层虚拟局域网QinQ绑定在所述第二vBNG-UP对应的接口上来完成将用户流量从所述第一vBNG-UP迁移到所述第二vBNG-UP。
  21. 一种虚拟宽带接入网关控制面装置，其特征在于，包括：
    接收单元，用于接收来自用户面选择决策点USF的第一指示信息，所述第一指示信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下替代所述第一vBNG-UP的第二vBNG-UP；
    处理单元，用于根据所述第一指示信息向所述第二vBNG-UP发送用户表项，其中，所述用户表项用于所述第二vBNG-UP在所述第一vBNG-UP故障的情况下根据所述用户表项将所述用户接入网络。
  22. 根据权利要求21所述的装置，其特征在于，所述接收单元用于接收来自用户面选择决策点USF的第一指示信息之前，所述接收单元，还用于获取所述第一vBNG-UP的故障信息；
    所述装置进一步包括发送单元，用于向所述USF发送第一通知信息，所述第一通知信息用于通知所述第一vBNG-UP故障。
  23. 根据权利要求21所述的装置，其特征在于，所述接收单元用于接收来自用户面选择决策点USF的第一指示信息之后，所述处理单元用于根据所述第一指示信息向所述第二vBNG-UP发送用户表项之后，所述接收单元，还用于获取所述第一vBNG-UP的故障信息。
  24. 根据权利要求21所述的装置，其特征在于，所述接收单元用于接收来自用户面选择决策点USF的第一指示信息之后，所述处理单元用于根据所述第一指示信息向所述第二vBNG-UP发送用户表项之后，所述接收单元，还用于接收所述第二vBNG-UP在用户流量从第一vBNG-UP迁移到第二vBNG-UP后发送的通知消息，所述通知消息用于指示所述vBNG-CP向所述第二vBNG-UP发送用户表项。
  25. 根据权利要求21或22所述的装置，其特征在于，所述处理单元用于根据所述第一指示信息向所述第二vBNG-UP发送用户表项之后，所述装置进一步包括发送单元，用于向软件定义网络SDN控制器发送第一迁移请求，所述第一迁移请求用于请求将用户流量从所述第一vBNG-UP迁移到所述第二vBNG-UP。
  26. 根据权利要求21或22所述的装置，其特征在于，所述处理单元用于根据所述第一指示信息向所述第二vBNG-UP发送用户表项之后，所述装置进一步包括发送单元，用于向所述USF发送所述用户表项迁移成功的通知消息，所述通知消息用于所述USF触发所述SDN控制器将用户流量从第一vBNG-UP迁移到所述第二vBNG-UP。
  27. 一种软件定义网络控制器装置，其特征在于，包括：
    接收单元，用于接收第一迁移请求，其中，所述第一迁移请求用于请求在第一vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP；
    处理单元，用于控制切换点SF将用户流量从所述第一vBNG-UP迁移到所述第二vBNG-UP。
  28. 根据权利要求27所述的装置，其特征在于，所述接收单元用于接收第一迁移请求之前，所述接收单元，还用于获取第一虚拟宽带接入网关用户面vBNG-UP的故障信息；
    所述装置进一步包括发送单元，用于向用户面选择决策点USF发送第一通知信息，所述第一通知信息用于通知所述第一vBNG-UP故障。
  29. 根据权利要求27或28所述的装置，其特征在于，所述第一迁移请求来自vBNG-CP或者USF。
  30. 根据权利要求27-29所述的装置，其特征在于，所述处理单元，具体用于向SF发送第二vBNG-UP的路径信息控制切换点SF将用户流量从所述第一vBNG-UP迁移到所述第二vBNG-UP，所述路径信息用于SF将用户流量从所述第一vBNG-UP迁移到所述第二vBNG-UP。
  31. 根据权利要求27-29所述的装置，其特征在于，所述处理单元，具体用于控制SF将用户对应的虚拟局域网VLAN或者双层虚拟局域网QinQ绑定在所述第二vBNG-UP对应的接口上，以将用户流量从所述第一vBNG-UP迁移到所述第二vBNG-UP。
  32. 一种用户面选择决策点装置，其特征在于，包括：
    处理单元，用于确定第二虚拟宽带接入网关用户面vBNG-UP，其中，所述第二vBNG-UP为第一vBNG-UP故障后用于替换所述第一vBNG-UP将用户接入网络的vBNG-UP；
    发送单元，用于向虚拟宽带接入网关控制面vBNG-CP发送第一指示信息，所述第一指示信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下替代所述第一vBNG-UP的第二vBNG-UP。
  33. 根据权利要求32所述的装置，其特征在于，所述处理单元用于确定第二虚拟宽带接入网关用户面vBNG-UP之前，还包括：
    接收单元，用于接收第一通知消息，所述第一通知消息用于通知所述第一vBNG-UP故障。
  34. 根据权利要求33所述的装置，其特征在于，所述处理单元用于确定第二虚拟宽带接入网关用户面vBNG-UP之后，所述发送单元，还用于向软件定义网络SDN控制器发送所述第一迁移请求，所述第一迁移请求用于请求在第一vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
  35. 根据权利要求31或32所述的装置，其特征在于，所述发送单元用于向vBNG-CP发送第一指示信息之后，所述接收单元，还用于接收来自所述vBNG-CP的第二通知消息，所述第二通知消息用于表征所述vBNG-CP已经向所述第二vBNG-UP发送了所述用户表项；
    所述发送单元，还用于根据所述第二通知消息向SDN控制器发送第一迁移请求，所述第一迁移请求用于所述SDN控制器将用户流量从第一vBNG-UP迁移到所述第二vBNG-UP；
    其中，所述用户表项为用户从所述第二vBNG-UP接入网络的信息，所述用户表项用于所述第二vBNG-UP在第一vBNG-UP故障的情况保持所述用户的宽带连接。
  36. 根据权利要求32所述的装置，其特征在于，所述第一通知消息来自于所述vBNG-CP或者所述SDN控制器。
  37. 根据权利要求32-36任一项所述的装置，其特征在于，所述处理单元，具体用于根据业务服务水平协议SLA从多个vBNG-UP中确定第二vBNG-UP。
  38. 根据权利要求32所述的方法，其特征在于，所述用户面选择决策点装置为内置于SDN控制器装置中的装置或者所述用户面选择决策点装置为独立的装置。
  39. 一种切换点装置，其特征在于，包括：
    发送单元，用于接收SDN控制器发送的路径信息，其中，所述路径信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下将用户流量从所述第一vBNG-UP迁移到所 述第二vBNG-UP；
    获取单元，用于获取所述第一vBNG-UP的故障信息；
    处理单元，用于根据所述路径信息将用户流量从第一vBNG-UP迁移到第二vBNG-UP。
  40. 根据权利要求39所述的装置，其特征在于，所述处理单元，具体用于根据所述路径信息将用户对应的虚拟局域网VLAN或者双层虚拟局域网QinQ绑定在所述第二vBNG-UP对应的接口上来完成将用户流量从所述第一vBNG-UP迁移到所述第二vBNG-UP。
  41. 一种宽带连接系统，其特征在于，所述系统包括：vBNG-CP装置和USF装置，
    所述USF装置，用于向所述vBNG-CP装置发送第一指示信息，所述第一指示信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下替代所述第一vBNG-UP的第二vBNG-UP；
    所述vBNG-CP装置，用于根据所述第一指示信息向所述第二vBNG-UP发送用户表项，其中，所述用户表项为用户从所述第二vBNG-UP接入网络的信息，所述用户表项用于所述第二vBNG-UP在所述第一vBNG-UP故障的情况下根据所述用户表项将所述用户接入网络。
  42. 根据权利要求41所述的系统，其特征在于，所述系统还包括：
    SDN控制器，用于接收第一迁移请求，其中，所述第一迁移请求用于请求在所述第一vBNG-UP故障的情况下将用户流量从第一vBNG-UP迁移到第二vBNG-UP；
    SF装置，用于根据路径信息将用户流量从第一vBNG-UP迁移到第二vBNG-UP，其中，所述路径信息用于指示在第一虚拟宽带接入网关用户面vBNG-UP故障的情况下将用户流量从所述第一vBNG-UP迁移到所述第二vBNG-UP。
  43. 根据权利要求42所述的系统，其特征在于，所述SDN控制器，还用于实现如权利要求7-11任一项所述的方法。
  44. 根据权利要求42所述的系统，其特征在于，所述SF装置，还用于实现如权利要求20所述的方法。
  45. 根据权利要求41-44任一项所述的系统，其特征在于，所述vBNG-CP装置，还用于实现如权利要求2-6中任一项所述的方法。
  46. 根据权利要求41-44任一项所述的系统，其特征在于，所述USF装置，还用于实现如权利要求12-18任一项所述的方法。
  47. 一种虚拟宽带接入网关控制面设备，其特征在于，所述设备包括至少一个处理器和通信接口，所述至少一个处理器用于调用至少一个存储器中存储的计算机程序，以使得所述设备实现如权利要求1-6中任一项所述的方法。
  48. 一种软件定义网络控制器设备，其特征在于，所述设备包括至少一个处理器和通信接口，所述至少一个处理器用于调用至少一个存储器中存储的计算机程序，以使得所述设备实 现如权利要求7-11中任一项所述的方法。
  49. 一种用户面选择决策点设备，其特征在于，所述设备包括至少一个处理器和通信接口，所述至少一个处理器用于调用至少一个存储器中存储的计算机程序，以使得所述设备实现如权利要求12-18中任一项所述的方法。
  50. 一种切换点设备，其特征在于，所述设备包括至少一个处理器和通信接口，所述至少一个处理器用于调用至少一个存储器中存储的计算机程序，以使得所述设备实现如权利要求19或20所述的方法。
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