WO2017041525A1 - Procédé et dispositif de reconstruction de fonction de réseau virtuel - Google Patents

Procédé et dispositif de reconstruction de fonction de réseau virtuel Download PDF

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Publication number
WO2017041525A1
WO2017041525A1 PCT/CN2016/083342 CN2016083342W WO2017041525A1 WO 2017041525 A1 WO2017041525 A1 WO 2017041525A1 CN 2016083342 W CN2016083342 W CN 2016083342W WO 2017041525 A1 WO2017041525 A1 WO 2017041525A1
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instance
vnfc instance
vnf
vnfc
information
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PCT/CN2016/083342
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English (en)
Chinese (zh)
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陈丽萍
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中兴通讯股份有限公司
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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
    • 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

Definitions

  • This application relates to, but is not limited to, the field of communications.
  • network functions and network devices are super-coupling relationships, and network functions are implemented through specially designed, vendor-specific devices.
  • the general-purpose server has the basic conditions for running the network function in software form, and Network Function Virtualization (NFV) technology has emerged as the times require.
  • NFV Network Function Virtualization
  • CAPEX Capital Expenditure
  • Virtualized technology enables network functions to be deployed and updated on demand, and greatly facilitates remote management and maintenance, reducing OPEX (Operating Expense).
  • FIG. 1 is a schematic diagram of a NFV Management and Orchestration (NFV-MANO) architecture in the related art.
  • the Network Functions Virtualization Orchestrator (NFVO) is responsible for the lifecycle management of network services and the Network Functions Virtualization Infrastructure (NFVI) of Virtualised Infrastructure Manager (VIM).
  • NFVO Network Functions Virtualization Orchestrator
  • NFVI Network Functions Virtualization Infrastructure
  • VIM Virtualised Infrastructure Manager
  • VNFM Network Function Virtualization Management Entity
  • Each VNF instance assumes an associated VNFM.
  • VIM is responsible for controlling and managing NFVI calculations, storage and network resources. .
  • the traditional telecommunication network network management adopts a three-layer management structure including a network management system (NMS), an element management system (EMS), and a network element, wherein The interface between the NMS and the EMS is a northbound interface.
  • the EMS and the NE are the southbound interfaces.
  • the traditional network management is responsible for the management of the virtual network function application layer.
  • the VNF includes a plurality of virtual network function components (VNF components, VNFC), and the VNFCs are all built on the virtual container.
  • VNF components VNFC
  • Virtual resources are allocated on the virtual container for use by the VNFC, where the virtual resources include virtual computing, storage, and network resources.
  • the life cycle of VNF includes instantiating VNF, terminating VNF instances, scaling VNF (divided into shrinking scale in, expanding scale out, increasing capacity scale up and reducing capacity scale down) and repairing VNF.
  • the repair generally refers to the process of restoring the network element and the device to normal operation when the network element or the device is faulty or the performance is seriously degraded.
  • the generalization also includes the diagnosis process of the problem, and the automatic repair mode can effectively reduce the cost of operation and maintenance.
  • 2 is an interaction diagram of VNF repair in the related art. As shown in Figure 2, after the VNFC reconstruction is determined, the service is first migrated to the standby device, and then the VNFC to be reconstructed is released through the lifecycle contraction VNF (Scale in VNF) operation, and then extended through the life cycle. The VNF (Scale out VNF) operation establishes a new VNFC to achieve the purpose of repairing the VNF instance.
  • VNF Scale out VNF
  • the VNF operation needs to be performed twice on the interface between the EM and the VNFM, and the corresponding VNFM needs to make two authorization requests to the NFVO, thus prolonging the repair time. .
  • the method and apparatus for reconstructing virtual network functions provided herein can shorten the modification time of the VNF.
  • a method of reconstructing virtual network functionality including:
  • the network function virtualization management entity VNFM receives the indication information of rebuilding the virtual network function component VNFC instance
  • the VNFM requests the virtual infrastructure management entity VIM to release the virtual resources of the VNFC instance to be re-established and allocate virtual resources for the VNFC instance to be established;
  • the VNFM establishes a new VNFC instance by using the virtual resource allocated by the VIM, where the new VNFC instance has the same deployment parameter as the VNFC instance to be reconstructed. And the new VNFC instance and the standby machine of the VNFC instance to be reconstructed form a primary standby machine.
  • the method further includes:
  • the VNFM indicates that the network function virtualization VNF instance migrates the services of the VNFC instance to be rebuilt to the standby of the VNFC instance to be rebuilt.
  • the VNFM requests the VIM to allocate virtual resources to the VNFC instance to be established, including:
  • the VNFM requests the VIM to allocate the required virtual resources among the reserved virtual resources.
  • the indication information of the reconstructed VNFC instance is received from an NFVO or network management EM entity.
  • the indication information of the VNFC instance is obtained by:
  • the obtaining the information of the VNFC instance according to the request message for repairing the VNF includes one or more of the following manners:
  • the information of the VNFC instance is obtained from the request message for repairing the VNF, where the request message for repairing the VNF includes the identifier information of the VNF instance and the identifier information of the VNFC instance to be reconstructed, or the repair VNF
  • the request message includes the identification information of the VNF instance, the identification information of the VNFC instance to be reconstructed, and the repair operation information, where the repair operation type is to rebuild the VNFC instance;
  • Manner 2 Obtain the alarm information of the VNF instance and/or the performance data of the VNF according to the identifier information of the VNF instance to be repaired in the request message for repairing the VNF, according to the Determining that the virtual resource or the physical resource of the VNF instance is faulty, and determining that the VNFC instance needs to be reconstructed;
  • Manner 3 Query the record of the VNF instance according to the identifier information of the VNF instance and the identifier information of the VNFC instance in the management information of the repair VNF instance, and determine that the repair operation type is a VNFC instance.
  • the method further includes:
  • the VNFM sends an authorization request message to the NFVO that is allowed to repair the VNF instance or re-establish the VNFC instance, and after receiving the authorization response message sent by the NFVO to repair the VNF instance or re-establish the VNFC instance, the service of the VNFC instance to be re-established Migrate to the standby of the VNFC instance to be rebuilt.
  • the method further includes:
  • the VNFM sends an EM to the EM to re-establish the notification of the completion of the VNFC instance or the confirmation information of the completion of the VNFC instance, and triggers the EM to send the application layer configuration information to the new VNFC instance, where the application layer configuration information is used to make the new The VNFC instance and the VNFC instance to be rebuilt are synchronized.
  • a device for reconstructing virtual network functions including:
  • the receiving module is configured to: receive indication information of rebuilding the virtual network function component VNFC instance;
  • the requesting module is configured to: request the virtual infrastructure management entity VIM to release the virtual resource of the VNFC instance to be re-established, and allocate a virtual resource for the VNFC instance to be established;
  • Establishing a module configured to: after the virtual resource release of the VNFC instance to be re-established is completed, use the virtual resource allocated by the VIM to establish a new VNFC instance, where the new VNFC instance and the VNFC instance to be reconstructed are The deployment parameters are the same, and the new VNFC instance and the standby device of the VNFC instance to be reconstructed form a primary standby.
  • the device further includes:
  • the indication module is configured to: when the requesting module requests the VIM to release the required reconstruction Before the virtual resource of the VNFC instance and the virtual resource are allocated to the newly created VNFC instance, the network function virtualization VNF instance is instructed to migrate the service of the VNFC instance to be rebuilt to the standby VNFC instance.
  • the requesting module is configured to: if the network function virtualization orchestrator NFVO reserves the virtual resource, request the VIM to allocate the required virtual resource in the reserved virtual resource.
  • the requesting module is configured to: receive the indication information of the reestablishing the VNFC instance from the NFVO or the network management EM entity.
  • the receiving module is configured to: obtain the indication information of the reconstructed VNFC instance by:
  • the receiving module is configured to: obtain information about rebuilding the VNFC instance according to the request message of the repair VNF by one or more of the following manners:
  • the information of the VNFC instance is obtained from the request message for repairing the VNF, where the request message for repairing the VNF includes the identifier information of the VNF instance and the identifier information of the VNFC instance to be reconstructed, or the repair VNF
  • the request message includes the identification information of the VNF instance, the identification information of the VNFC instance to be reconstructed, and the repair operation information, where the repair operation type is to rebuild the VNFC instance;
  • Manner 2 Obtain the alarm information of the VNF instance and/or the performance data of the VNF according to the identifier information of the VNF instance to be repaired in the request message for repairing the VNF, according to the alarm information of the VNF instance and/or Or determining, by the performance data of the VNF, that the virtual resource or the physical resource of the VNF instance is sent to be faulty, and determining that the VNFC instance needs to be reconstructed;
  • Manner 3 Query the record of the VNF instance according to the identifier information of the VNF instance and the identifier information of the VNFC instance in the management information of the repair VNF instance, and determine that the repair operation type is a VNFC instance.
  • the device further includes:
  • the first sending module is configured to: after requesting to receive the indication information for reestablishing the VNFC instance, send an authorization request message for permitting repair of the VNF instance or reestablishing the VNFC instance to the NFVO;
  • the migration module is configured to: after receiving the authorization response message sent by the NFVO to repair the VNF instance or reestablish the VNFC instance, migrate the service of the VNFC instance to be rebuilt to the standby of the VNFC instance to be rebuilt.
  • the device further includes:
  • the second sending module is configured to: after establishing a new VNFC instance by using the virtual resource allocated by the VIM, send, to the EM, a notification for completing the completion of the VNFC instance or confirming the completion of the VNFC instance, triggering the EM to the
  • the new VNFC instance sends the application layer configuration information, where the application layer configuration information is used to synchronize the new VNFC instance and the VNFC instance to be reconstructed.
  • a computer readable storage medium storing computer executable instructions for performing the method of any of the above.
  • the VNFM does not need to perform the operation of scaling the VNF twice on the interface between the EM and the VNFM by requesting the VIM to release the virtual resource of the VNFC instance to be reconstructed and allocate the virtual resource to the VNFC instance to be established.
  • the VNFM needs to perform two authorization request operations to the NFVO, and effectively shorten the repair time and reduce the impact on the service on the premise that the faulty or impending faulty virtual network function is restored to the normal operation state.
  • FIG. 1 is a schematic diagram of an NFV management scheduling architecture in the related art
  • FIG. 3 is a flowchart of an embodiment of a method for reestablishing a virtual network function according to the present invention
  • FIG. 4 is an interaction diagram of a method for reconstructing a virtual network function according to Embodiment 1 of the present invention.
  • FIG. 5 is an interaction diagram of a method for reestablishing a virtual network function according to Embodiment 2 of the present invention.
  • FIG. 6 is an interaction diagram of a method for reestablishing a virtual network function according to Embodiment 3 of the present invention.
  • FIG. 7 is an interaction diagram of a method for reconstructing a virtual network function according to Embodiment 4 of the present invention.
  • FIG. 8 is a structural diagram of an apparatus for reconstructing a virtual network function according to the present invention.
  • FIG. 3 is a flowchart of an embodiment of a method for reestablishing a virtual network function according to the present invention.
  • the method shown in Figure 3 includes:
  • Step 301 The VNFM receives the indication information of the VNFC instance of the virtual network function component.
  • Step 302 The VNFM requests the virtual infrastructure management entity VIM to release the virtual resources of the VNFC instance to be re-established and allocate virtual resources to the VNFC instance to be established.
  • Step 303 After the virtual resource release of the VNFC instance to be re-established is completed, the VNFM establishes a new VNFC instance by using the virtual resource allocated by the VIM, where the new VNFC instance and the VNFC instance to be reconstructed are The deployment parameters are the same, and the new VNFC instance and the standby device of the VNFC instance to be reconstructed form a primary standby.
  • the VNFM does not need to perform the operation of scaling the VNF twice on the interface between the EM and the VNFM by requesting the VIM to release the virtual resource of the VNFC instance to be reconstructed and allocate the virtual resource to the VNFC instance to be established.
  • the VNFM needs to perform two authorization request operations to the NFVO, and effectively shorten the repair time and reduce the impact on the service on the premise that the faulty or impending faulty virtual network function is restored to the normal operation state.
  • the method further includes:
  • the VNFM indicates that the network function virtualizes the VNF instance to be rebuilt by the VNFC instance. Move to the standby of the VNFC instance to be rebuilt.
  • the VNFM requests the VIM to allocate virtual resources to the VNFC instance to be established, including: if the NFVO reserves the virtual resources, the VNFM requests the VIM to allocate the required virtual resources in the reserved virtual resources. Resources.
  • the NFVO reserves the virtual resource, it requests to allocate resources on the reserved resource to achieve the purpose of fully utilizing the resource.
  • the indication information of the reconstructed VNFC instance is received from an NFVO or network management EM entity.
  • the indication information of the VNFC instance is obtained by:
  • the obtaining the information of the VNFC instance according to the request message for repairing the VNF includes one or more of the following manners:
  • the information of the VNFC instance is obtained from the request message for repairing the VNF, where the request message for repairing the VNF includes the identifier information of the VNF instance and the identifier information of the VNFC instance to be reconstructed, or the repair VNF
  • the request message includes the identification information of the VNF instance, the identification information of the VNFC instance to be reconstructed, and the repair operation information, where the repair operation type is to rebuild the VNFC instance;
  • Manner 2 Obtain the alarm information of the VNF instance and/or the performance data of the VNF according to the identifier information of the VNF instance to be repaired in the request message for repairing the VNF, according to the alarm information of the VNF instance and/or Or determining, by the performance data of the VNF, that the virtual resource or the physical resource of the VNF instance is sent to be faulty, and determining that the VNFC instance needs to be reconstructed;
  • Manner 3 Query the record of the VNF instance according to the identifier information of the VNF instance and the identifier information of the VNFC instance in the management information of the repair VNF instance, and determine the type of the repair operation. To rebuild the VNFC instance.
  • the information of reconstructing the VNFC instance can be directly obtained or can be inferred from the existing information.
  • the method further includes:
  • the VNFM sends an authorization request message to the NFVO that is allowed to repair the VNF instance or re-establish the VNFC instance, and after receiving the authorization response message sent by the NFVO to repair the VNF instance or re-establish the VNFC instance, the service of the VNFC instance to be re-established Migrate to the standby of the VNFC instance to be rebuilt.
  • the method further includes:
  • the VNFM sends an EM to the EM to re-establish the notification of the completion of the VNFC instance or the confirmation information of the completion of the VNFC instance, and triggers the EM to send the application layer configuration information to the new VNFC instance, where the application layer configuration information is used to make the new The VNFC instance and the VNFC instance to be rebuilt are synchronized.
  • the embodiment of the invention further provides a computer readable storage medium storing computer executable instructions for performing the above method for reconstructing a virtual network function.
  • FIG. 4 is an interaction diagram of a method for reconstructing a virtual network function according to Embodiment 1 of the present invention.
  • the VNF is reconstructed by the EM to trigger the VNFM instance, as follows:
  • Step 401 The EM sends a request message for reestablishing the VNFC instance to the VNFM, where the request message for reestablishing the VNFC instance carries the identifier information of the VNF instance and the identifier information Id of the VNFC instance to be reconstructed.
  • Step 402 The VNFM sends an authorization request message for re-establishing the VNFC instance to the NFVO, where the authorization request message carries information about the virtual resource to be added, that is, the information of the virtual resource used to establish the new VNFC instance, and The information of the deleted virtual resource, that is, the information of the virtual resource corresponding to the VNFC instance to be reconstructed that should be released;
  • Step 403 The VNFM receives an authorization response message sent by the NFVO to allow the VNFC instance to be reestablished.
  • Step 404 The VNFM instructs the VNF to migrate the service of the VNFC instance to be re-established to the standby of the VNFC instance.
  • Step 405 The VNFM receives the service migration response sent by the VNF.
  • Step 406 The VNFM sends a request for releasing the virtual resource corresponding to the VNFC instance to be reconstructed to the VIM.
  • Step 407 the VNFM receives the resource successful release response of the VIM.
  • Step 408 The VNFM sends a request to the VIM to allocate a virtual resource for establishing a new VNFC instance.
  • Step 409 the VNFM receives the resource allocation response sent by the VIM.
  • Step 410 The VNFM establishes a new VNFC instance according to the VNFD of the VNF instance on the allocated virtual resource, where the deployment parameter of the new VNFC instance is the same as the deployment parameter of the VNFC instance to be reestablished, so as to ensure the preparation of the original VNFC instance to be reconstructed.
  • the machine and the new VNFC instance are re-formed into the primary and backup machines.
  • Step 411 The VNFM sends a response message to the EM to complete the reconstruction of the VNFC instance.
  • Step 412 The EM performs configuration layer parameter configuration on the reconstructed VNFC to synchronize the active and standby VNFC instances.
  • FIG. 5 is an interaction diagram of a method for reestablishing a virtual network function according to Embodiment 2 of the present invention.
  • the VNF is repaired by the EM, and the VNFC instance is reconstructed by the VNFM;
  • Step 501 the EM sends a request message for repairing the VNF instance to the VNFM, where the request message for repairing the VNF instance carries the VNF instance Id and the Id of the VNFC to be repaired;
  • Step 502 After receiving the request message for repairing the VNF instance, the VNFM determines that the alarm or the performance is seriously degraded according to the VNF alarm information and/or the performance data is a virtual resource or a physical resource failure, and determines that the VNFC instance instance needs to be reconstructed;
  • Step 503 The VNFM sends an authorization request message for permitting the repair of the VNF instance to the NFVO, where the information of the virtual resource that should be added in the authorization request message, that is, the information of the virtual resource used to establish the new VNFC instance, and the information that should be deleted are deleted.
  • the information of the virtual resource that is, the information of the virtual resource corresponding to the VNFC instance to be reconstructed that should be released;
  • Step 504 The VNFM receives an authorization response message sent by the NFVO to allow the VNF instance to be repaired.
  • Step 505 The VNFM notifies the VNF to migrate the service of the VNFC instance to be re-established to the standby of the VNFC instance.
  • Step 506 The VNFM receives the service migration response sent by the VNF.
  • Step 507 The VNFM sends a request for releasing the virtual resource corresponding to the VNFC instance to be reconstructed to the VIM.
  • Step 508 The VNFM receives the resource successfully released response of the VIM.
  • Step 509 The VNFM sends a request to the VIM to allocate a virtual resource for establishing a new VNFC instance.
  • Step 510 The VNFM receives a resource allocation response sent by the VIM.
  • Step 511 The VNFM establishes a new VNFC instance according to the VNFD of the VNF instance on the allocated virtual resource.
  • the deployment parameter of the new VNFC instance is the same as the deployment parameter of the VNFC instance to be reconstructed.
  • the machine and the new VNFC instance are re-formed into the primary and backup machines;
  • Step 512 The VNFM sends a response message to the EM to repair the VNFC completion.
  • step 513 the EM performs the application layer parameter configuration on the reconstructed VNFC to synchronize the active and standby VNFC instances.
  • FIG. 6 is an interaction diagram of a method for reestablishing a virtual network function according to Embodiment 3 of the present invention.
  • the VNFC instance is triggered by NFVO triggering, as shown in Figure 6:
  • Step 601 the NFVO sends a request message for repairing the VNF instance to the VNFM, where the request message for repairing the VNF instance carries the VNF instance Id, the repair operation type is the reconstruction VNFC, and the Id of the VNFC to be reconstructed;
  • Step 602 After receiving the request message for repairing the VNF instance, the VNFM sends an authorization request message for repairing the VNF instance to the NFVO, where the authorization request message carries a lifecycle operation indicating that the VNFC instance is reconstructed to repair the VNF operation, and may also carry The information about the virtual resource to be added, that is, the information of the virtual resource to be used for establishing the new VNFC instance, and the information of the virtual resource to be deleted, that is, the information of the virtual resource corresponding to the VNFC instance to be reconstructed to be released;
  • Step 603 the NFVO sends a reservation to the VIM to create a resource required for reestablishing the VNFC;
  • Step 604 the NFVO receives the reserved resource response sent by the VIM.
  • Step 605 the VNFM receives the authorization response message sent by the NFVO to allow the repair of the VNF instance, and the response message carries the Id of the reserved resource;
  • Step 606 The VNFM instructs the VNF to migrate the service of the VNFC instance to be re-established to the standby of the VNFC instance.
  • Step 607 The VNFM receives the service migration response sent by the VNF.
  • Step 608 The VNFM sends a request for releasing the virtual resource corresponding to the VNFC instance to be reconstructed to the VIM.
  • Step 609 The VNFM receives the resource success release response message of the VIM.
  • Step 610 The VNFM sends a request message for allocating a virtual resource of the new VNFC instance to the VIM, where the request message of the virtual resource carries the Id of the reserved resource, so that the VIM allocates the required virtual resource in the reserved resource.
  • Step 611 the VNFM receives the resource allocation response sent by the VIM.
  • Step 612 The VNFM establishes a new VNFC instance according to the VNFD of the VNF instance on the allocated virtual resource, where the deployment parameter of the new VNFC instance is the same as the deployment parameter of the VNFC instance to be reconstructed, so as to ensure the original VNFC instance to be reconstructed.
  • the standby machine and the new VNFC instance are re-formed into the primary and backup machines;
  • Step 613 The VNFM sends a notification message to the EM to complete the completion of the VNFC instance.
  • step 614 the EM performs the application layer parameter configuration on the reconstructed VNFC to synchronize the active and standby VNFC instances.
  • FIG. 7 is an interaction diagram of a method for reconstructing a virtual network function according to Embodiment 4 of the present invention.
  • the VNFC instance is triggered by the VNFM, as shown in FIG.
  • Step 701 The VNFD of the VNF instance has the operation type and the required resource information of the VNFC repair, and the operation type includes the VNFC instance.
  • the VNFM determines whether the alarm or the performance is seriously degraded according to the VNF alarm information and/or performance data.
  • the virtual resource or physical resource is faulty, and the VNFC instance needs to be repaired.
  • Step 702 The VNFM determines the type of the repair operation to re-establish the VNFC instance by querying the VNFR of the VNF instance.
  • Step 703 The VNFM sends an authorization request message for repairing the VNF instance to the NFVO, where the request message carries information about the virtual resource to be added, that is, the information of the virtual resource used to establish the new VNFC instance, and the virtual resource to be deleted. Information, that is, the information of the virtual resource corresponding to the VNFC instance to be reconstructed that should be released;
  • Step 704 the NFVO sends a reservation to the VIM to create a resource required for rebuilding the VNFC.
  • Step 705 the NFVO receives the reserved resource response sent by the VIM.
  • Step 706 the VNFM receives an authorization response message sent by the NFVO to allow the repair of the VNF instance, where the authorization response message carries the Id of the reserved resource;
  • Step 707 The VNFM instructs the VNF to migrate the service of the VNFC instance to be re-established to the standby of the VNFC instance.
  • Step 708 The VNFM receives the service migration response sent by the VNF.
  • Step 709 The VNFM sends a request for releasing the virtual resource corresponding to the VNFC instance to be reconstructed to the VIM.
  • Step 710 The VNFM receives a resource release response of the VIM.
  • Step 711 The VNFM sends a request message to the VIM to allocate a virtual resource of the new VNFC instance, where the request message of the virtual resource carries the Id of the reserved resource, so that the VIM allocates the required virtual resource in the reserved resource.
  • Step 712 The VNFM receives the resource allocation response sent by the VIM.
  • the VNFM establishes a new VNFC instance according to the VNFD of the VNF instance on the allocated virtual resource.
  • the deployment parameter of the new VNFC instance is the same as the deployment parameter of the VNFC instance to be reconstructed.
  • the machine and the new VNFC instance are re-formed into the primary and backup machines;
  • Step 714 The VNFM sends a notification message to the EM to complete the completion of the VNFC instance.
  • step 715 the EM performs the application layer parameter configuration on the reconstructed VNFC to synchronize the active and standby VNFC instances.
  • FIG. 8 is a structural diagram of an apparatus for reconstructing a virtual network function according to the present invention.
  • the device shown in Figure 8 includes:
  • the receiving module 801 is configured to: receive indication information of rebuilding the virtual network function component VNFC instance;
  • the requesting module 802 is configured to: request the virtual infrastructure management entity VIM to release the virtual resource of the VNFC instance to be re-established, and allocate a virtual resource for the VNFC instance to be established;
  • the establishing module 803 is configured to: after the virtual resource release of the VNFC instance to be reconstructed is completed, use the virtual resource allocated by the VIM to establish a new VNFC instance, where the new VNFC instance and the VNFC instance to be reconstructed are The deployment parameters are the same, and the new VNFC instance and the standby machine of the VNFC instance to be reconstructed form a primary standby.
  • the device further includes:
  • the indication module is configured to: before the requesting module 802 requests the VIM to release the virtual resource of the VNFC instance to be reconstructed and allocate the virtual resource to the newly created VNFC instance, indicating that the network function virtualized VNF instance is to be rebuilt by the VNFC instance.
  • the service is migrated to the standby of the VNFC instance to be rebuilt.
  • the requesting module 802 is configured to: if the network function virtualization orchestrator NFVO reserves the virtual resource, request the VIM to allocate the required virtual resource in the reserved virtual resource.
  • the requesting module 802 is configured to: receive the indication information of the reestablishing the VNFC instance from the NFVO or the network management EM entity.
  • the requesting module 802 is configured to: obtain the indication information of the reconstructed VNFC instance by:
  • the requesting module 802 is configured to: obtain information about rebuilding the VNFC instance according to the request message of the repair VNF by one or more of the following manners:
  • the information of the VNFC instance is obtained from the request message for repairing the VNF, where the request message for repairing the VNF includes the identifier information of the VNF instance and the identifier information of the VNFC instance to be reconstructed, or the repair VNF
  • the request message includes the identification information of the VNF instance, the identification information of the VNFC instance to be reconstructed, and the repair operation information, where the repair operation type is to rebuild the VNFC instance;
  • Manner 2 Obtain the alarm information of the VNF instance and/or the performance data of the VNF according to the identifier information of the VNF instance to be repaired in the request message for repairing the VNF, according to the alarm information of the VNF instance and/or Or determining, by the performance data of the VNF, that the virtual resource or the physical resource of the VNF instance is sent to be faulty, and determining that the VNFC instance needs to be reconstructed;
  • Manner 3 Query the record of the VNF instance according to the identifier information of the VNF instance and the identifier information of the VNFC instance in the management information of the repair VNF instance, and determine the type of the repair operation. To rebuild the VNFC instance.
  • the device further includes:
  • the first sending module is configured to: after requesting to receive the indication information for reestablishing the VNFC instance, send an authorization request message for permitting repair of the VNF instance or reestablishing the VNFC instance to the NFVO;
  • the migration module is configured to: after receiving the authorization response message sent by the NFVO to repair the VNF instance or reestablish the VNFC instance, migrate the service of the VNFC instance to be rebuilt to the standby of the VNFC instance to be rebuilt.
  • the device further includes:
  • the second sending module is configured to: after establishing a new VNFC instance by using the virtual resource allocated by the VIM, send, to the EM, a notification for completing the completion of the VNFC instance or confirming the completion of the VNFC instance, triggering the EM to the
  • the new VNFC instance sends the application layer configuration information, where the application layer configuration information is used to synchronize the new VNFC instance and the VNFC instance to be reconstructed.
  • the VNFM releases the virtual resource of the VNFC instance to be re-established by the VIM and allocates the virtual resource to the VNFC instance to be established, without performing two scaling of the VNF on the interface between the EM and the VNFM.
  • Operation and VNFM need to perform two authorization request operations to NFVO.
  • the repair time is effectively shortened to reduce the impact on the service.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the application is not limited to any special The combination of hardware and software.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • the device/function module/functional unit in the above embodiment When the device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • the VNFM does not need to perform the operation of scaling the VNF twice on the interface between the EM and the VNFM by requesting the VIM to release the virtual resource of the VNFC instance to be reconstructed and allocate the virtual resource to the VNFC instance to be established.
  • the VNFM needs to perform two authorization request operations to the NFVO, and effectively shorten the repair time and reduce the impact on the service on the premise that the faulty or impending faulty virtual network function is restored to the normal operation state.

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

Abstract

La présente invention concerne un procédé et un dispositif de reconstruction de fonction de réseau virtuel. Le procédé comprend : la réception, par un gestionnaire de fonction de réseau virtuel (VNFM), d'informations d'indication indiquant la reconstruction d'un exemple de composant de fonction de réseau virtuel (VNFC) ; la demande, par le VNFM, à un gestionnaire d'infrastructure virtualisée (VIM) de libérer une ressource virtuelle de l'exemple de VNFC qui nécessite une reconstruction, et l'attribution, par le VNFM, de la ressource virtuelle à l'exemple de VNFC destiné à être reconstruit ; et la reconstruction, par le VNFM, après l'achèvement de la libération de la ressource virtuelle de l'exemple de VNFC qui nécessite une reconstruction, en utilisant la ressource virtuelle attribuée par le VIM, d'un nouvel exemple de VNFC, le nouvel exemple de CNFC et l'exemple de VNFC, qui nécessite une reconstruction, possédant un paramètre de déploiement identique, et le nouvel exemple de CNFC et l'exemple de VNFC, qui nécessite une reconstruction, formant un hôte.
PCT/CN2016/083342 2015-09-08 2016-05-25 Procédé et dispositif de reconstruction de fonction de réseau virtuel WO2017041525A1 (fr)

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