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WO2015113234A1 - Procédé et dispositif de virtualisation de fonction de réseau - Google Patents

Procédé et dispositif de virtualisation de fonction de réseau Download PDF

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Publication number
WO2015113234A1
WO2015113234A1 PCT/CN2014/071719 CN2014071719W WO2015113234A1 WO 2015113234 A1 WO2015113234 A1 WO 2015113234A1 CN 2014071719 W CN2014071719 W CN 2014071719W WO 2015113234 A1 WO2015113234 A1 WO 2015113234A1
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WO
WIPO (PCT)
Prior art keywords
local resource
vnf
vim
network function
local
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2014/071719
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English (en)
Chinese (zh)
Inventor
余芳
熊春山
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Huawei Technologies Co Ltd
Original Assignee
Huawei Technologies Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to CN201480000641.5A priority Critical patent/CN105103507B/zh
Priority to PCT/CN2014/071719 priority patent/WO2015113234A1/fr
Publication of WO2015113234A1 publication Critical patent/WO2015113234A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/64—Hybrid switching systems
    • H04L12/6418—Hybrid transport

Definitions

  • the present invention relates to the field of information technology, and in particular, to a method and apparatus for virtualizing a network function.
  • NF V Network Function Visualization
  • the NFVI Network Function Visualization Infrastructure
  • VNF Virtualized Network Function
  • the geographical location of the hardware resources provided by the general hardware platform is unknown.
  • the access delay of the VNF to the hardware resources is large, resulting in poor system performance. .
  • the embodiment of the invention provides a network function virtualization method and device, which can improve the system 'I' generation h
  • an embodiment of the present invention provides a method for virtualizing a network function, including: a network function virtualization orchestrator NFVO receiving a virtualized network function description VNFD and/or a virtualized network function VNF instantiation parameter;
  • VNFVO Determining, by the NFVO, whether the VNF is a distributed VNF according to the VNFD and/or the VNF instantiation parameter
  • the NFVO sends a local resource reservation request to the virtual infrastructure manager VIM.
  • the method before the step of the NFV0 sending a local resource reservation request to the virtual infrastructure manager VIM, the method further includes: determining, by the NF VO, the local VIM corresponding to the resource;
  • the step of the NFVO sending a local resource reservation request to the virtual infrastructure manager VIM includes:
  • the NF VO sends a local resource reservation request to the VIM corresponding to the local resource.
  • the VNFD and/or the VNF instantiation parameter carries a requirement of the VNF for a local resource ;
  • the method further includes: the NF VO acquiring a description of the local resource capability and attributes provided by the network function virtualization infrastructure NF VI;
  • the step of determining, by the NF VO, the VIM corresponding to the local resource includes:
  • the N F V 0 determines the VIM corresponding to the local resource according to the requirement of the VN F for the local resource and the description of the local resource capability and the attribute.
  • the VNFD and/or the VNF instantiation parameter carries an address of the local resource and/or Or the address of the VIM corresponding to the local resource;
  • the step of determining, by the NF VO, the VIM corresponding to the local resource includes:
  • the NFVC determines the VIM corresponding to the local resource according to the address of the local resource and/or the address of the VIM corresponding to the local resource.
  • the fourth aspect in the first aspect In a possible implementation manner, the VNFD and/or the VNF instantiation parameter carries a requirement of the VN F for a local resource hardware accelerator.
  • the network function virtualization orchestrator NFVO receives a virtualized network function description VNFD and/or a virtualized network function VNF After the steps of instantiating the parameters, the method further includes:
  • the NF VO receives an instantiation request sent by the trigger sender
  • the method further includes:
  • the NFVO receives a reservation result of the local resource sent by the VIM, where the reservation result of the local resource includes the local resource reservation success information or the local resource unreservable information;
  • the NFVO sends the instantiated request to the VNFM, where the instantiation request carries a VIM identifier corresponding to the local resource.
  • the method further includes:
  • the NFVO updates the state of the local resource according to the instantiation result, and sends the instantiation result to the sender.
  • the NFV 0 After the step of sending a local resource reservation request to the virtual infrastructure manager VIM, the method further includes:
  • the NFVO sends a shared resource reservation request to the VIM, where the shared resource reservation request carries the requirement of the VN F for the required shared resource.
  • an embodiment of the present invention provides a device for virtualizing a network function, including: a receiving unit, configured to receive a virtualized network function description VNFD and/or a virtualized network function VNF instantiation parameter;
  • a determining unit configured to determine, according to the VNFD and/or the VNF instantiation parameter received by the receiving unit, whether the VNF is a distributed VNF;
  • a sending unit configured to send a local resource reservation request to the virtual infrastructure manager VIM when the determining unit determines that the VNF is a distributed VNF.
  • the determining unit is further configured to determine a VIM corresponding to the local resource
  • the sending unit is specifically configured to send a local resource reservation request to the VIM corresponding to the local resource determined by the determining unit.
  • the VNFD and/or the VNF instantiation parameter received by the receiving unit carries a requirement of the VNF for a local resource
  • the device further includes: an acquiring unit;
  • the obtaining unit is configured to obtain a description of the local resource capability and attributes provided by the network function virtualization infrastructure NFVI;
  • the determining unit is specifically configured to determine, according to the requirement of the VNF, the local resource, and the local resource capability and the description of the genus acquired by the acquiring unit, VIM.
  • the VNFD and/or the VNF instantiation parameter received by the receiving unit carries an address of the local resource and/or an address of a V I M corresponding to the local resource;
  • the determining unit is configured to determine, according to the address of the local resource and/or the address of the VIM corresponding to the local resource, the VIM corresponding to the local resource.
  • the VNFD and/or the VNF instantiation parameter received by the receiving unit carries a requirement of the VNF for a local resource hardware accelerator.
  • the second aspect or the first possible implementation of the second aspect, or the second possible implementation of the second aspect, or the third possible implementation of the second aspect, or the fourth aspect of the second aspect a possible implementation manner, in a fifth possible implementation manner of the second aspect
  • the receiving unit is further configured to receive an instantiation request sent by the trigger sender; the receiving unit is further configured to receive a reservation result of the local resource sent by the VIM, where the reservation result of the local resource includes The local resource reservation success information or the local resource non-reservation information;
  • the sending unit is further configured to: when the receiving unit receives the local resource reservation success information, send the instantiation request to the VNFM, where the instantiation request carries the local resource corresponding The VIM logo.
  • the receiving unit is further configured to receive an instantiation result sent by the VNFM;
  • the device further includes: a processing unit;
  • the processing unit is configured to perform an update process on a status of the local resource according to the instantiation result received by the receiving unit;
  • the sending unit is further configured to send the instantiation result received by the receiving unit to the sender.
  • the second aspect or the first possible implementation of the second aspect, or the second possible implementation of the second aspect, or the third possible implementation of the second aspect, or the fourth aspect of the second aspect a possible implementation, or a fifth possible implementation of the second aspect, or a sixth possible implementation of the second aspect, the seventh possible In the implementation,
  • the sending unit is further configured to send a shared resource reservation request to the VIM, where the shared resource reservation request carries a requirement of the VNF for a required shared resource.
  • an embodiment of the present invention provides a network function virtualization orchestrator NFVO, which includes:
  • Receiver configured to receive a virtualized network function description VNFD and/or virtualized network function VNF instantiation parameter
  • a processor configured to determine, according to the VNFD and/or the VNF instantiation parameter received by the receiver, whether the VNF is a distributed VNF;
  • a transmitter configured to send a local resource reservation request to the virtual infrastructure manager VIM when the processor determines that the VNF is a distributed VNF.
  • the processor is further configured to determine a VIM corresponding to the local resource
  • the transmitter is specifically configured to send a local resource reservation request to the VIM corresponding to the local resource determined by the processor.
  • the VNFD and/or the VNF instantiation parameter received by the receiver carries a requirement of the VNF for a local resource
  • the processor is further configured to obtain a description of the local resource capability and attributes provided by the network function virtualization infrastructure NFVI;
  • the processor is configured to determine a VIM corresponding to the local resource according to the requirement of the VN F for the local resource and the description of the local resource capability and the attribute.
  • the VNFD and/or the VNF instantiation parameter received by the receiver carries an address of the local resource and/or an address of a VIM corresponding to the local resource;
  • the processor is specifically configured to: according to an address of the local resource received by the receiver
  • the address of the VIM corresponding to the local resource determines the VIM corresponding to the local resource.
  • the VNFD and/or the VNF instantiation parameters received by the receiver carry the VNF requirement for a local resource hardware accelerator.
  • the third aspect or the first possible implementation of the third aspect, or the second possible implementation of the third aspect, or the third possible implementation of the third aspect, or the fourth aspect of the third aspect a possible implementation manner, in a fifth possible implementation manner of the third aspect
  • the receiver is further configured to receive an instantiation request sent by the trigger sender
  • the receiver is further configured to receive a reservation result of the local resource that is sent by the VIM, where the reservation result of the local resource includes the local resource reservation success information or the local resource unreservable information;
  • the transmitter is further configured to: when the receiver receives the local resource reservation success information, send the instantiation request to the VNFM, where the instantiation request carries the local resource corresponding The VIM logo.
  • the receiver is further configured to receive an instantiation result sent by the VNFM;
  • the processor is further configured to: perform update processing on a status of the local resource according to the instantiation result received by the receiver;
  • the transmitter is further configured to send the instantiation result received by the receiver to the ssndsr.
  • the sender is further configured to send a shared resource reservation request to the VIM, where the shared resource reservation request carries a requirement of the VN F for a required shared resource.
  • the embodiment of the present invention provides a method for virtualizing a network function, including: a virtual infrastructure manager VIM receiving a local resource reservation request sent by a network function virtualization orchestrator NF VO, the local resource reservation request Carrying the need for local resources by the virtualized network function VNF;
  • the VIM sends a reservation result of the local resource to the NF VO.
  • the V I M determines a reservation result of the local resource according to a state of the local resource.
  • the virtual infrastructure manager VIM receives the network function virtualization orchestrator NF VO After the steps of the local resource reservation request, it also includes:
  • the VIM receives the shared resource reservation request sent by the NF VO, where the shared resource reservation request carries the requirement of the VN F for the required shared resource.
  • an embodiment of the present invention provides a device for virtualizing a network function, including: a receiving unit, configured to receive a local resource reservation request sent by a network function virtualization orchestrator NFV 0, where the local resource reservation request is Carrying virtualized network function VN F to local resources Demand
  • a determining unit configured to determine, according to the local resource reservation request received by the receiving unit, a reservation result of the local resource, where the reservation result of the local resource includes the local resource reservation success information or the Local resources cannot reserve information;
  • a sending unit configured to send a reservation result of the local resource determined by the determining unit to the NFVO.
  • the determining unit is configured to determine a state of the local resource according to the local resource reservation request received by the receiving unit, where the state of the local resource includes the local resource available, and the local resource is pre- Leave the local resources allocated;
  • the determining unit is further configured to determine a reservation result of the local resource according to a state of the local resource.
  • the receiving unit is further configured to receive a shared resource reservation request sent by the NFVO, where the shared resource reservation request carries a requirement of the VNF for a required shared resource.
  • an embodiment of the present invention provides a virtual infrastructure manager VIM, including: a receiver, configured to receive a local resource reservation request sent by a network function virtualization orchestrator NFV 0, where the local resource reservation request is Carrying the virtualized network function VNF needs for local resources;
  • a processor configured to determine, according to the local resource reservation request received by the receiver, a reservation result of the local resource, where the reservation result of the local resource includes the local resource reservation success information or the Local resources cannot reserve information;
  • a transmitter configured to send, to the NFVO, a reservation result of the local resource determined by the processor.
  • the processor is specifically configured to reserve the local resource according to the receiver. Determining, determining a state of the local resource, where the state of the local resource includes the local resource being available, the local resource is reserved, and the local resource is allocated;
  • the processor is further configured to determine a reservation result of the local resource according to a state of the local resource.
  • the receiver is further configured to receive a shared resource reservation request sent by the NFVO, where the shared resource reservation request carries a requirement of the VN F for a required shared resource.
  • the method and device for virtualizing the network function provided by the embodiment of the present invention firstly, the NFVO (Network Function Visualization Orchestrator) receives the virtualized network function description VNFD (Virtualized Network Function Description, virtual network function description And/or virtualize the network function VNF instantiation parameter, and determine whether the VNF is a distributed VNF, if the VNF is a distributed VNF, send a local resource reservation request to the VIM; then the VIM receives the local resource reservation request sent by the NFVO And determining the reservation result of the local resource according to the local resource reservation request; finally, the VIM sends the reservation result of the local resource to the NFVO.
  • the embodiment of the present invention can reduce the access delay of the VNF to the hardware resources by providing corresponding local resources in the distributed VNF, thereby improving system performance.
  • FIG. 1 is a flowchart of a method for virtualizing a network function according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic structural diagram of an apparatus for virtualizing a network function according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic structural diagram of an NFVO according to Embodiment 1 of the present invention
  • 4 is a flowchart of a method for virtualizing a network function according to Embodiment 2 of the present invention
  • FIG. 5 is a schematic structural diagram of an apparatus for virtualizing a network function according to Embodiment 2 of the present invention
  • FIG. 6 is a schematic structural diagram of an NFVO according to Embodiment 2 of the present invention.
  • FIG. 7 is a flowchart of a method for virtualizing a network function according to Embodiment 3 of the present invention
  • FIG. 8 is a schematic structural diagram of an apparatus for virtualizing a network function according to Embodiment 3 of the present invention
  • FIG. 9 is a schematic structural diagram of a V I M according to Embodiment 3 of the present invention.
  • FIG. 10 is a flowchart of a method for virtualizing a network function according to Embodiment 4 of the present invention
  • FIG. 11 is a schematic structural diagram of an apparatus for virtualizing a network function according to Embodiment 4 of the present invention
  • FIG. 12 is a schematic structural diagram of a VIM according to Embodiment 4 of the present invention.
  • the embodiment of the invention provides a method for virtualizing a network function. As shown in FIG. 1, the method includes:
  • Network Function Virtualization Orchestrator NF VO Receive Virtualization Network Function Description VNFD and/or Virtualization Network Function VN F instantiation parameters.
  • the VNFD and/or VNF instantiation parameters may describe the configuration of the VNF deployment behavior and operational behavior.
  • the deployment behavior includes, but is not limited to, a deployment environment required by the VNF. Specifically, it refers to the VNF requirements for NFVI (Network Function Virtualized Infrastructure) resources, such as the number of virtual machines, the number of virtual machine images (images), required computing resources, and storage resources; It can be a behavior in the VNF lifecycle management process, including but not limited to VNF topology, startup and shutdown, functional scripts that match VNF lifecycle events, and so on.
  • NFVI Network Function Virtualized Infrastructure
  • the VNF attribute may also be described in the VNFD and/or VNF instantiation parameters, and the VNF attribute includes a distributed VNF and a centralized VNF.
  • the VNFD and/or VNF instantiation parameters can be used to describe the requirements and requirements of the VNF resource and VNF instantiation process.
  • NFVO determines whether the VNF is a distributed VNF based on VNFD and/or VNF instantiation parameters.
  • VNF is a distributed VNF, or a centralized VNF.
  • the distributed VNF may be run on a local resource or on a shared resource.
  • the distributed VNF may be a local gateway, a CND (Content Delivery Network) cache node, or a CPE (Customer Premise).
  • Equipment, client terminal equipment, etc.; centralized VNF can only run on shared resources, such as MME (Mobility Management Entity), PCRF (Policy and Charging Rules Function), AAA (Authentication Authorization Accounting, Verify Authorization Accounting, etc.
  • MME Mobility Management Entity
  • PCRF Policy and Charging Rules Function
  • AAA Authentication Authorization Accounting, Verify Authorization Accounting, etc.
  • the local resource must meet at least the minimum performance requirement of the VNF, so that the VNF can run normally on the local resource.
  • the NFVO sends a local resource reservation request to the virtual infrastructure manager VIM.
  • the distributed VNF can run on local resources.
  • the VNF by running the VNF on the local resource, since the local resources are geographically distributed, the access delay of the VNF to the hardware resources can be reduced, thereby improving system performance.
  • an embodiment of the present invention provides a The device for virtualizing the network function, as shown in FIG. 2, the entity of the device may be NFVO, and the device includes: a receiving unit 21, a determining unit 22, and a sending unit 23.
  • the receiving unit 21 is configured to receive a virtualized network function description VNFD and/or a virtualized network function VNF instantiation parameter.
  • the determining unit 22 is configured to determine whether the VNF is a distributed VNF according to the VNFD and/or VNF instantiation parameters received by the receiving unit 21.
  • the sending unit 23 is configured to send a local resource reservation request to the virtual infrastructure manager VIM when the determining unit 22 determines that the VNF is a distributed VNF.
  • the entity of the network function virtualization device may be NFVO.
  • the NFVO may include: a receiver 31, a processor 32, and a transmitter 33.
  • the receiver 31 is configured to receive a virtualized network function description VNFD and/or a virtualized network function VNF instantiation parameter.
  • the processor 32 is configured to determine, according to the VNFD and/or VNF instantiation parameters received by the receiver 31, whether the VNF is a distributed VNF.
  • the transmitter 33 is configured to send a local resource reservation request to the virtual infrastructure manager VIM when the processor 32 determines that the VNF is a distributed VNF.
  • the method and device for virtualizing a network function provided by the embodiment of the present invention firstly, the NFVO receives the virtualized network function description VNFD and/or the virtualized network function VNF instantiation parameter, and determines whether the VNF is a distributed VNF, if the VNF is distributed VNF, the local resource reservation request is sent to the VIM; then the VIM receives the local resource reservation request sent by the NFVO, and determines the reservation result of the local resource according to the local resource reservation request; finally, the VIM sends the reservation result of the local resource Give NFVO.
  • the embodiment of the present invention By providing corresponding local resources in the distributed VNF, the access delay of the VNF to the hardware resources can be reduced, thereby improving system performance.
  • the embodiment of the invention provides a method for virtualizing a network function. As shown in FIG. 4, the method includes:
  • Network Function Virtualization Orchestrator NF VO Receive Virtualization Network Function Description VNFD and/or Virtualization Network Function VN F instantiation parameters.
  • the VNFD and/or VNF instantiation parameters can describe the configuration of the VNF deployment behavior and operational behavior.
  • the deployment behavior includes, but is not limited to, the deployment environment required by the VNF, and specifically refers to the VNF requirements for the NFVI (Network Function Virtualized Infrastructure) resources, such as the number of virtual machines, and the virtual machine.
  • the number of images (images), required computing resources, storage resources, etc.; operational behavior can be behaviors in the VNF lifecycle management process, including but not limited to VNF topology, startup and shutdown, and matching with VNF lifecycle events Sex scripts, etc.
  • the VNF attribute may also be described in the VNFD and/or VNF instantiation parameters, and the VNF attribute includes a distributed VNF and a centralized VNF.
  • the VNFD and/or VNF instantiation parameters can be used to describe the requirements and requirements of the VNF resource and VNF instantiation process.
  • the VNFD and/or VNF instantiation parameters may carry the VNF requirement for the local resource hardware accelerator.
  • the VNF by carrying the VNF requirement for the local resource hardware accelerator in the VNFD and/or VNF instantiation parameters, the VNF can be used to support the use of specific acceleration hardware, thereby improving the performance and system performance of the VNF.
  • the NFVO receives the instantiation request sent by the trigger sender.
  • the Sender can be an Operation Support System (OSS), an Element Management System (EMS), or a VNFM.
  • OSS Operation Support System
  • EMS Element Management System
  • VNFM Vehicle-to-Network Interface
  • the NFVO determines whether the VNF is a distributed VNF according to the VNFD and/or VNF instantiation parameters. Among them, VNF is a distributed VNF, or a centralized VNF. In the embodiment of the present invention, the distributed VNF may run on a local resource or a shared resource, for example, the distributed VNF may be a local gateway, a CND cache node, or a CPE; the centralized VNF can only run on the shared resource. Upper, for example, MME, PCRF, AAA server, and the like.
  • the local resource must meet at least the minimum performance requirement of the VNF, so that the VNF can run normally on the local resource.
  • the NFVO determines the VIM corresponding to the local resource.
  • the VNFD and/or VNF instantiation parameters may carry the VNF requirement for local resources.
  • the method before step 404, the method further includes: NFVO acquiring network function virtualization infrastructure description of local resource capabilities and attributes provided by the NFVI.
  • step 404 may be: NFVO determines the VIM corresponding to the local resource according to the requirement of the VNF for the local resource and the description of the local resource capability and the attribute.
  • the specific requirements of the VNF for local resources include: the need for processor capabilities, the need for memory capabilities, the need for hypervisor capabilities, the need for resource topology and availability, and the need for special hardware accelerator capabilities. Item or any combination.
  • the description of the local resource capabilities and attributes provided by the NFVI server may be included in the "NFVI resources" database, and the NFVO may query or modify the database.
  • the NFVI server may provide a description of the local resource and the shared resource according to the resource type, and may include a local resource capability and an attribute description, a shared resource capability and an attribute description, and an NFVI resource status description, where the local resource capability and the attribute description may be Includes a description of the special acceleration hardware.
  • the NFVO selects a local requirement of the VNF to the local resource by the specific requirements of the VNF in the VNFD and/or the VNF, and the description of the local resource capability and attributes provided by the NFVI server.
  • the resource can determine the VIM corresponding to the local resource, and further enable the NFVO to send the local resource reservation request to the VIM corresponding to the local resource.
  • the VNFD and/or VNF instantiation parameters carry the address of the local resource and/or Or the address of the VIM corresponding to the local resource.
  • the step 404 may be: the NFVO determines the VIM corresponding to the local resource according to the address of the local resource and/or the address of the VIM corresponding to the local resource.
  • the VNFD may carry a specific address or identification information of a local resource required by the VNF.
  • the VNFD can carry the specific location of the local resource required by the VNF, the IP address of the required local resource, the URL (Uniform Resource Locator), or the identifier of the server where the local resource can be uniquely identified.
  • the NFVO may directly determine the corresponding VIM according to the address or the identification information.
  • the VNFD may also carry the VIM address or identifier information corresponding to the local resource required by the VNF.
  • the VIM identifier/address may be an IP address, a URL, or other identifier that can uniquely identify the VIM.
  • the resource coordination through the NFVO can be avoided in the process of instantiating the VNF. So that the VNFM can directly send a resource allocation request to the corresponding VIM.
  • the NFVO sends a local resource reservation request to the VIM corresponding to the local resource.
  • the local resource reservation request carries the VNF requirement for the required local resource.
  • the distributed VNF can run on local resources.
  • the access delay of the VNF to the hardware resource can be reduced, thereby improving system performance.
  • the method further includes: NFVO sending a shared resource reservation request to the VIM.
  • the shared resource reservation request carries the requirement of the VNF for the required shared resource.
  • the distributed VNF can run on both local resources and shared resources.
  • the distributed VNF can be simultaneously operated on the local resources and the shared resources, and the capacity can be expanded through the shared resources, thereby further improving the system performance.
  • the distributed VNF can run on local resources and shared resources at the same time, which can occur in local resources. In the event of a failure, allocate shared resources to the VNF so that the VNF can function properly.
  • running the distributed VNF on both local resources and shared resources can provide better scalability for the entire NFVI. Specifically, when the number of users increases or the load is large, a shared resource may be allocated for the distributed VNF; when the number of users is reduced or the load is low, the shared resources allocated for the distributed VN F may be translated.
  • the NF VO receives the reserved result of the local resource sent by the VIM.
  • the reservation result of the local resource includes local resource reservation success information or local resource non-reservation information.
  • the status of the local resource may include: a local resource is available, a local resource is reserved, and a local resource is allocated.
  • the NFVO receives the local resource reservation success information sent by the VIM; when the state of the local resource is reserved, the VNF corresponding to the reserved resource is determined by the current The priority of the VNF, if the current VNF priority is higher, the NFVO receives the local resource reservation success information sent by the VIM; when the status of the local resource is allocated, the NFVO receives the local resource unreservable information sent by the VIM.
  • the NFVO sends the instantiation request to the VNFM.
  • the instantiation request carries the VIM identifier corresponding to the local resource.
  • the NFVO receives the instantiation result sent by the VNFM.
  • NFVO updates the state of the local resource according to the instantiation result, and sends the instantiation result to the sender.
  • an embodiment of the present invention provides a device for virtualizing a network function.
  • the entity of the device may be NFVO, and the device includes: a receiving unit. 51.
  • the receiving unit 51 is configured to receive a virtualized network function description VNFD and/or a virtualized network function VNF instantiation parameter.
  • a determining unit 52 configured to instantiate the VNFD and/or VNF according to the receiving unit 51 Number, determine if the VNF is a distributed VNF.
  • the sending unit 53 is configured to send a local resource reservation request to the virtual infrastructure manager VIM when the determining unit 52 determines that the VNF is a distributed VNF.
  • the determining unit 52 is further configured to determine a VIM corresponding to the local resource.
  • the sending unit 53 is specifically configured to send a local resource reservation request to the VIM corresponding to the local resource determined by the determining unit 52.
  • the VNFD and/or VNF instantiation parameters received by the receiving unit 51 carry the VNF requirements for local resources.
  • the device may further include: an obtaining unit 54.
  • the obtaining unit 54 is configured to obtain a description of the local resource capabilities and attributes provided by the network function virtualization infrastructure NFVI.
  • the determining unit 52 is specifically configured to determine the VIM corresponding to the local resource according to the requirement of the VNF received by the receiving unit 51 for the local resource and the local resource capability and the attribute acquired by the obtaining unit 54.
  • the VN F D and/or VNF instantiation parameters received by the receiving unit 51 carry the address of the local resource and/or the address of the VIM corresponding to the local resource.
  • the determining unit 52 is specifically configured to determine the VIM corresponding to the local resource according to the address of the local resource received by the receiving unit 51 and/or the address of the VIM corresponding to the local resource.
  • the VNFD and/or VNF instantiation parameters received by the receiving unit 51 carry the VNF requirements for the local resource hardware accelerator.
  • the receiving unit 51 is further configured to receive an instantiation request sent by the trigger sender.
  • the receiving unit 51 is further configured to receive a reservation result of the local resource sent by the VIM.
  • the reservation result of the local resource includes local resource reservation success information or local resource non-reservation information.
  • the sending unit 53 is further configured to: when the receiving unit 51 receives the local resource reservation success information, send the instantiation request to the VNFM.
  • the instantiation request carries the VIM identifier corresponding to the local resource.
  • the receiving unit 51 is further configured to receive an instantiation result of the VNFM transmission.
  • the device may further include: a processing unit 55.
  • the processing unit 55 is configured to perform update processing on the status of the local resource according to the instantiation result received by the receiving unit 51.
  • the sending unit 53 is further configured to send the instantiation result received by the receiving unit 51 to the sender.
  • the sending unit 53 is further configured to send a shared resource reservation request to the VIM.
  • the shared resource reservation request carries the requirement of the VNF for the required shared resource. It should be noted that other corresponding descriptions of the functional units in the device for virtualizing the network function provided in the embodiment of the present invention may be referred to the corresponding description in FIG. 4, and details are not described herein.
  • the entity of the device for virtualizing the network function may be NFVO.
  • the NFVO may include: a receiver 61, a processor 62, and a transmitter 63.
  • the receiver 61 is configured to receive a virtualized network function description VNFD and/or a virtualized network function VNF instantiation parameter.
  • the processor 62 is configured to determine, according to the VNFD and/or VNF instantiation parameters received by the receiver 61, whether the VNF is a distributed VNF.
  • the sender 63 is configured to send a local resource reservation request to the virtual infrastructure manager VIM when the processor 62 determines that the VNF is a distributed VNF.
  • the processor 62 is further configured to determine a VIM corresponding to the local resource.
  • the transmitter 63 is configured to send a local resource reservation request to the VIM corresponding to the local resource determined by the processor 62.
  • VNFD and/or VNF instantiation parameters received by the receiver 61 carry the VNF requirements for local resources.
  • the processor 62 is further configured to obtain a description of the local resource capabilities and attributes provided by the network function virtualization infrastructure NFVI.
  • the processor 62 is specifically configured to determine, according to the requirement of the VNF received by the receiver 61 for the local resource and the description of the local resource capability and the attribute, the VIM corresponding to the local resource.
  • the VN FD and/or VN F instantiation parameters received by the receiver 61 carry the address of the local resource and/or the address of the VIM corresponding to the local resource.
  • the processor 62 is specifically configured to determine, according to the address of the local resource received by the receiver 61 and/or the address of the VIM corresponding to the local resource, the VIM corresponding to the local resource.
  • VNFD and/or VNF instantiation parameters received by the receiver 61 carry the VNF requirements for the local resource hardware accelerator.
  • the receiver 61 is further configured to receive an instantiation request sent by the trigger sender.
  • the receiver 61 is further configured to receive a reservation result of the local resource sent by the VIM.
  • the reservation result of the local resource includes local resource reservation success information or local resource non-reservation information.
  • the transmitter 63 is further configured to send the formalization request to the VNFM when the receiver 61 receives the local resource reservation success information.
  • the instantiation request carries the VIM identifier corresponding to the local resource.
  • the receiver 61 is further configured to receive an instantiation result sent by the VNFM.
  • the processor 62 is further configured to update the status of the local resource according to the instantiation result received by the receiver 61.
  • the sender 63 is further configured to send the instantiation result received by the receiver 61 to the sender.
  • the sender 63 is further configured to send a shared resource reservation request to the VIM.
  • the shared resource reservation request carries the requirement of the VNF for the required shared resource.
  • the method and device for virtualizing a network function provided by the embodiment of the present invention firstly, the NF VO receives a virtualized network function description VNFD and/or a virtualized network function VNF instantiation parameter, and determines whether the VNF is a distributed VNF, if the VNF is a distribution VNF, the local resource reservation request is sent to the VIM; then the VIM receives the local resource reservation request sent by the NFVO, and determines the reservation result of the local resource according to the local resource reservation request; finally, the VIM will reserve the result of the local resource. Send to NFVO.
  • the embodiment of the present invention By providing corresponding local resources in the distributed VNF, the access delay of the VNF to the hardware resources can be reduced, thereby improving system performance.
  • the embodiment of the invention provides a method for virtualizing a network function. As shown in FIG. 7, the method includes:
  • the virtual infrastructure manager VIM receives the local resource reservation request sent by the network function virtualization orchestrator NF VO.
  • the local resource reservation request carries the requirement of the virtualized network function VN F for the local resource.
  • the specific requirements of the VNF for local resources include: requirements for processor capabilities, requirements for memory capabilities, requirements for hypervisor capabilities, requirements for resource topology and availability, and capabilities for special hardware accelerators. Any or any combination of requirements.
  • the VIM determines a reservation result of the local resource according to the local resource reservation request.
  • the reservation result of the local resource includes local resource reservation success information or local resource non-reservation information.
  • the VIM sends the reserved result of the local resource to the NFVO.
  • the embodiment of the present invention provides a device for virtualizing a network function.
  • the entity of the device may be a VIM, and the device includes: a receiving unit. 81.
  • the receiving unit 81 is configured to receive a local resource reservation request sent by the network function virtualization orchestrator NFVO.
  • the local resource reservation request carries the requirement of the virtualized network function VN F for the local resource.
  • the determining unit 82 is configured to determine a reservation result of the local resource according to the local resource reservation request received by the receiving unit 81.
  • the reservation result of the local resource includes local resource reservation success information or local resource non-reservation information.
  • the sending unit 83 is configured to send the reservation result of the local resource determined by the determining unit 82 to NFVO.
  • the entity of the network function virtualization device may be a VIM.
  • the VIM may include: a receiver 91, a processor 92, and a transmitter 93.
  • the receiver 91 is configured to receive a local resource reservation request sent by the network function virtualization orchestrator NFVO.
  • the local resource reservation request carries the requirement of the virtualized network function VN F for the local resource.
  • the processor 92 is configured to determine a reservation result of the local resource according to the local resource reservation request received by the receiver 91.
  • the reservation result of the local resource includes local resource reservation success information or local resource non-reservation information.
  • the transmitter 93 is configured to send a reservation result of the local resource determined by the processor 92 to the NFVO.
  • the transmitter 93 is configured to send a reservation result of the local resource determined by the processor 92 to the NFVO.
  • the method and device for virtualizing a network function provided by the embodiment of the present invention firstly, the NF VO receives a virtualized network function description VNFD and/or a virtualized network function VNF instantiation parameter, and determines whether the VNF is a distributed VNF, if the VNF is a distribution VNF, the local resource reservation request is sent to the VIM; then the VIM receives the local resource reservation request sent by the NFVO, and determines the reservation result of the local resource according to the local resource reservation request; finally, the VIM will reserve the result of the local resource. Send to NFVO.
  • the embodiment of the present invention can reduce the access delay of the VNF to the hardware resources by providing corresponding local resources in the distributed VNF, thereby improving system performance.
  • Embodiment 4 The embodiment of the invention provides a method for virtualizing a network function. As shown in FIG. 10, the method includes:
  • the local resource reservation request carries the requirement of the virtualized network function VN F for the local resource.
  • the specific requirements of the VNF for local resources include: requirements for processor capabilities, requirements for memory capabilities, requirements for hypervisor capabilities, requirements for resource topology and availability, and capabilities for special hardware accelerators. Any or any combination of requirements.
  • the method further includes: the VIM receiving the shared resource reservation request sent by the NFVO.
  • the shared resource reservation request carries the VNF requirement for the required shared resource.
  • the distributed VNF can run on both local resources and shared resources.
  • the distributed VNF can be simultaneously operated on the local resource and the shared resource, and the shared resource can be expanded, thereby further improving the system performance.
  • the shared resources can be allocated to the VNF when the local resources are faulty, so that the VNF can run normally.
  • the distributed VNF may be allocated a shared resource; when the number of users is reduced or the load is low, the shared resources allocated for the distributed VNF may be translated.
  • the VIM determines the status of the local resource according to the local resource reservation request.
  • the status of the local resource may include local resources available, local resources reserved, and local resources allocated.
  • the VIM determines a reservation result of the local resource according to the state of the local resource.
  • the reservation result of the local resource includes local resource reservation success information or local resource non-reservation information.
  • the NFVO when the state of the local resource is available, the NFVO receives the local resource reservation success information sent by the VIM; when the state of the local resource is reserved, the judgment is The priority of the VNF corresponding to the reserved resource and the current VNF. If the current VNF priority is higher, the NFVO receives the local resource reservation success information sent by the VIM. When the status of the local resource is allocated, the NF VO receives the VIM transmission. Local resources cannot reserve information.
  • the VIM sends the reserved result of the local resource to the NF VO.
  • an embodiment of the present invention provides a device for virtualizing a network function.
  • the entity of the device may be a VIM, and the device includes: a receiving unit. 111.
  • the receiving unit 111 is configured to receive a local resource reservation request sent by the network function virtualization orchestrator NFVO.
  • the local resource reservation request carries the requirement of the virtualized network function VN F for the local resource.
  • the determining unit 112 is configured to determine a reservation result of the local resource according to the local resource reservation request received by the receiving unit 111.
  • the reservation result of the local resource includes local resource reservation success information or local resource non-reservation information.
  • the sending unit 113 is configured to send the reservation result of the local resource determined by the determining unit 112 to the NFVO.
  • the determining unit 112 is specifically configured to determine a state of the local resource according to the local resource reservation request received by the receiving unit 111.
  • the status of the local resource includes local resources available, local resources reserved, and local resources allocated.
  • the determining unit 112 is further configured to determine a pre-reserved result of the local resource according to the state of the local resource.
  • the receiving unit 111 is further configured to receive a shared resource reservation request sent by the NFVO.
  • the shared resource reservation request carries the requirement of the VNF for the required shared resource.
  • the entity of the network function virtualization device may be a VIM.
  • the VIM may include: a receiver 121, a processor 122, and a transmitter 123.
  • the receiver 121 is configured to receive a local resource reservation request sent by the network function virtualization orchestrator N F V 0 .
  • the local resource reservation request carries the requirement of the virtualized network function VN F for the local resource.
  • the processor 122 is configured to determine a reservation result of the local resource according to the local resource reservation request received by the receiver 121.
  • the reservation result of the local resource includes local resource reservation success information or local resource non-reservation information.
  • the sender 123 is configured to send a reservation result of the local resource determined by the processor 122 to the NFVO.
  • the processor 122 is specifically configured to determine a state of the local resource according to the local resource reservation request received by the receiver 121.
  • the status of the local resource includes local resources available, local resources reserved, and local resources allocated.
  • the processor 122 is further configured to determine a reservation result of the local resource according to a state of the local resource.
  • the receiver 121 is further configured to receive a shared resource reservation request sent by the NFVO.
  • the shared resource reservation request carries the requirement of the VNF for the required shared resource.
  • VNF virtual network
  • the method and device for virtualizing a network function provided by the embodiment of the present invention firstly, the NF VO receives a virtualized network function description VNFD and/or a virtualized network function VNF instantiation parameter, and determines whether the VNF is a distributed VNF, if the VNF is a distribution VNF, the local resource reservation request is sent to the VIM; then the VIM receives the local resource reservation request sent by the NFVO, and according to the local resource The reservation request determines the reservation result of the local resource; finally, the VIM sends the reservation result of the local resource to the NFVO.
  • the embodiment of the present invention can reduce the access delay of the VNF to the hardware resources by providing corresponding local resources in the distributed VNF, thereby improving system performance.
  • the device for virtualizing the network function provided by the embodiment of the present invention may implement the method for providing the foregoing method.
  • the method and apparatus for virtualizing a network function provided by the embodiments of the present invention may be applicable to scheduling resources in a virtualized network function, but is not limited thereto.
  • the storage medium may be a magnetic disk, an optical disk, a read-only memory (ROM), or a random access memory (RAM).

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Abstract

La présente invention se rapporte au domaine des technologies de l'information. L'invention concerne un procédé et un dispositif de virtualisation de fonction de réseau, qui peuvent améliorer les performances de système. Le procédé comprend les opérations suivantes : en premier lieu, un orchestrateur de virtualisation de fonction de réseau (NFVO) reçoit un élément de description de fonction de réseau virtualisée (VNFD) envoyé par un expéditeur et/ou un paramètre d'instanciation de fonction de réseau virtualisée (VNF) envoyé par un gestionnaire de fonction de réseau virtualisée (VNFM), détermine si une VNF est ou non une VNF distribuée, et si la VNF est une VNF distribuée, envoie une requête de réservation de ressource locale à un gestionnaire d'infrastructure virtualisée (VIM) ; ensuite, le VIM reçoit la requête de réservation de ressource locale envoyée par le NFVO et détermine un résultat de réservation de ressource locale selon la requête de réservation de ressource locale ; et enfin, le VIM envoie le résultat de réservation de ressource locale au NFVO. Les modes de réalisation de la présente invention peuvent être appliqués à la planification de ressources dans une fonction de réseau virtualisée.
PCT/CN2014/071719 2014-01-28 2014-01-28 Procédé et dispositif de virtualisation de fonction de réseau Ceased WO2015113234A1 (fr)

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