WO2016037479A1 - Procédé, dispositif et système pour optimiser une fonction de réseau virtualisé (vnf) - Google Patents

Procédé, dispositif et système pour optimiser une fonction de réseau virtualisé (vnf) Download PDF

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Publication number
WO2016037479A1
WO2016037479A1 PCT/CN2015/074703 CN2015074703W WO2016037479A1 WO 2016037479 A1 WO2016037479 A1 WO 2016037479A1 CN 2015074703 W CN2015074703 W CN 2015074703W WO 2016037479 A1 WO2016037479 A1 WO 2016037479A1
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vnf
vnfm
request
nfvo
resource reservation
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PCT/CN2015/074703
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English (en)
Chinese (zh)
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陶运锋
倪明
孟令财
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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
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks

Definitions

  • the present invention relates to the field of communication technologies, and in particular, to the field of Network Function Virtualization (NFV); in particular, to a method, device and system for optimizing a virtualized network function VNF.
  • NFV Network Function Virtualization
  • NF network function
  • VNF Virtualized Network Function
  • VNF runs on the cloud.
  • NFV implements the decoupling of VNF and hardware resources.
  • VNF occupies resources on demand, thus improving resources.
  • the utilization efficiency when the network load is low, will also shut down some servers, which also saves energy and is more environmentally friendly.
  • the NFV technology manages resources uniformly and manages the VNF.
  • the functions of the NFV technology include: cloud resource management function, VNF management function, and network service management function.
  • NFV The NFV framework is shown in Figure 1. Compared to traditional networks, NFV introduces the following new network components. These new components and their completed functions are as follows:
  • NFVO Network Function Virtualization Orchestrator
  • NFVI Network Function Virtualisation Infrastructure
  • VNFM Virtualized Network Function Management
  • VNF lifecycle management eg, instantiation, deletion, viewing, update, scale in/out, scale up/down, self
  • More ie, automatically repair VNF
  • EM coordinate message processing between VNF and element management
  • Virtualized Infrastructure Manager is responsible for the management (addition, deletion, viewing, update, failure recovery, etc.) of resources (computing resources, storage resources, network resources).
  • Appendix B.3.1 and B.3.2 of the European Telecommunications Standards Institute standard "GS NFV-MAN 001 V0.5.0 (2014-05)" describe the VNF instantiation scheme.
  • Solution 1 VNF instantiation (NFVO is responsible for allocating resources), see Figure 2;
  • a sender sends an instantiation VNF request to the NFVO.
  • the NFVO checks the validity of the request, including but not limited to: 1) authenticating the user who initiated the request; 2) performing legality check on the requested parameter;
  • NFVO performs feasibility analysis on the instantiation request, and at the same time of feasibility analysis, NFVO may reserve resources. This step is optional;
  • the NFVO requests the VNFM to instantiate the VNF
  • the VNFM processes the instantiation request, including but not limited to: 1) checking the validity of the request; 2) checking the validity of the request parameter; 3) checking the VNF related parameter, such as a license check; 4) calculating the VDUs (Virtual Deployment) Unit);
  • the VNFM sends a resource reservation request to the NFVO according to the calculated resource requirement.
  • the NFVO checks the legality of the resource reservation request, including but not limited to: 1) checking the legality of the resource reservation request parameter; 2) checking the resource location requirement, and confirming whether the NFVO can satisfy the VNFM resource. Location requirements; 3) interdependence of resources Line check
  • the NFVO initiates a resource occupation request (including a computing resource, a storage resource, a network resource, and the like) to the VIM.
  • a resource occupation request including a computing resource, a storage resource, a network resource, and the like
  • the VIM creates an internal network
  • the VIM creates a virtual machine, and links the virtual machine to a related internal and external network
  • the VIM returns a creation resource success response to the NFVO.
  • the VNFM configures VNF deployment related data.
  • VNFM informs EM that the VNF deployment is successful, and the VNF is required to be included in the EM management scope;
  • VNF data including but not limited to: 1) office data; 2) user data;
  • VNFM notifies NFVO that the VNF is instantiated successfully
  • VNFM VNF instantiation
  • the VNFM calculates the required number of resources, and then sends an instantiation VNF request (including resource requirements) to the NFVO, requesting the NFVO to perform legality and feasibility check on the instantiation request, and if the check passes, the resource reservation is performed;
  • the VIM returns a resource reservation success response to the NFVO.
  • the NFVO responds to the VNFM for legality check, feasibility check, and resource reservation success response;
  • the VNFM sends a request to create a network and create a VMs to the VIM.
  • the VIM After creating a network and creating a VMs, the VIM returns a creation success response to the VNFM.
  • the VNFM configures VNF deployment data.
  • the VNFM returns the VNF instantiation to the EM
  • VNF data including but not limited to: 1) office data; 2) user data;
  • VNFM notifies NFVO that the VNF is successfully instantiated
  • the NFVO establishes a correspondence between the VNF and the resource pool.
  • VNFM is responsible for allocating resources, NFVO initiates instantiation request), see Figure 4;
  • the NFVO receives the VNF instantiation request (this request may be triggered manually or automatically, for example: triggered from OSS/BSS);
  • the NFVO sends an instantiation VNF request to the VNFM.
  • the VNFM calculates the required number of resources, and then sends an instantiation VNF request (including resource requirements) to the NFVO, requesting the NFVO to perform legality and feasibility check on the instantiation request, and if the check passes, the resource reservation is performed;
  • the NFVO initiates a reservation request for the resource to the VIM (this step is optional);
  • the VIM returns a resource reservation success response to the NFVO.
  • the NFVO responds to the VNFM for legality check, feasibility check, and resource reservation success response;
  • the VNFM sends a request to create a network and create a VMs to the VIM.
  • VIM After creating a network and creating a VMs, the VIM returns a creation success response to the VNFM.
  • the VNFM configures VNF deployment data.
  • the VNFM returns the VNF instantiation to the EM
  • the EM configures the VNF data, including but not limited to: 1) office data; 2) user data;
  • the VNFM notifies the NFVO that the VNF is successfully instantiated
  • NFVO establishes a correspondence between the VNF and the resource pool.
  • Solution 1 defect analysis S213 & S214 & S215 these three steps are not confirmed that the VNF startup is successful, and VNF communication, configuration, it is likely to fail; because after S209 and S210 successfully create VMs, VMs must first load the operating system, then In order to install and start your own application software, for the VNF in the telecom field, the VNF often contains multiple VMs. These VM operating systems start up and the VNF application software needs to be installed and started. It is impossible to do it all at once, if VIM creates VMs immediately after VNF communication and configuration of VNF, it is likely to fail; in the actual commercial process, after testing S213 & S214 & S215 does often fail;
  • Solution 2 Defect analysis The three steps of S309&S311&S312 are to communicate and configure with VNF without confirming the successful startup of VNF. It is likely to fail; because after VIM successfully creates VMs, VMs must first load the operating system before they can Install and start your own application software. For the VNF in the telecom field, VNF often contains multiple VMs. These VM operating systems start up and VNF's own application software needs to start up. It is impossible to do it all at once. If VIM creates VMs, it will communicate with VNF immediately. The configuration of the VNF is likely to fail; in the actual commercial process, it is verified that S309&S311&S312 will often fail;
  • Solution 3 Defect Analysis The three steps of S410&S412&S413 are to communicate and configure with VNF without confirming the successful startup of VNF. It is likely to fail; because after VIM successfully creates VMs, VMs must first load the operating system before they can Install and start your own application software. For the VNF in the telecom field, VNF often contains multiple VMs. These VM operating systems start up and VNF's own application software needs to start up. It is impossible to do it all at once. If VIM creates VMs, it will communicate with VNF immediately. The configuration of the VNF is likely to fail; in the actual commercial process, it is verified that S410&S412&S413 will often fail.
  • the embodiment of the invention provides a method, a device and a system for optimizing a virtualized network function VNF, so as to solve at least the problem that the VNF configuration command fails to be executed when the VIM communicates with the VNF and configures the VNF.
  • a VNF optimization method for a virtualized network function including: after receiving an initialization success message, the virtualized network function management VNFM receives a notification message that the VNF is successfully started; the VNFM responds to the A notification message, the VNFM communicates with the VNF and configures the VNF data.
  • the receiving, by the VNFM, the initialization success message includes: the VNFM receiving an instantiation request of the network function virtualization orchestrator NFVO, and processing the instantiation request; the VNFM sending a resource reservation request to the NFVO and receiving The resource reservation success message sent by NFVO.
  • the receiving, by the VNFM, the initialization success message includes: the VNFM receiving an instantiation request of the EM; the VNFM sending a legality check request, a feasibility check request, and a resource reservation request to the NFVO; the VNFM receiving the NFVO
  • the sent resource reservation success message is sent to the virtualization infrastructure management VIM to create a network and virtual machine request; the VNFM receives the network and virtual machine created by the VIM to create a successful response.
  • the receiving, by the VNFM, the initialization success message includes: the VNFM receiving an instantiation request of the NFVO; the VNFM sending a legality check request, a feasibility check request, and a resource reservation request to the NFVO; the VNFM receiving the NFVO
  • the sent resource reserves a success message, and sends a create network and virtual machine request to the VIM; the VNFM receives the network and virtual machine created by the VIM to create a successful response.
  • a VNF optimization method including: a VNF sends a notification message of successful startup to a VNFM; the VNF receives a response message of the VNFM, and the VNF communicates with the VNFM. And data configuration.
  • a VNF optimization apparatus including: a receiving module, configured to receive a notification message that the VNF is successfully started after receiving the initialization success message; the first communication module is configured to respond to the The notification message communicates with the VNF and configures the VNF data.
  • the apparatus further includes: a first receiving module configured to receive an instantiation request of the NFVO, and process the instantiation request; the first sending module, configured to send a resource reservation request to the NFVO and receive The resource sent by the NFVO reserves a success message and notifies the receiving module.
  • the device further includes: a second receiving module configured to receive an instantiation request of the EM; and a second sending module configured to send a validity check request, a feasibility check request, and a resource reservation request to the NFVO;
  • the second receiving module is further configured to receive a resource reservation success message sent by the NFVO;
  • the second sending module is further configured to send a request for creating a network and a virtual machine to the virtualized infrastructure management VIM;
  • the second receiving module is further configured to receive a successful response of the network and the virtual machine created by the VIM.
  • the apparatus further includes: a third receiving module configured to receive an instantiation request of the NFVO; and a third sending module configured to send a validity check request, a feasibility check request, and a resource reservation request to the NFVO ;
  • the third receiving module is further configured to receive a resource reservation success message sent by the NFVO;
  • the third sending module is further configured to send a create network and virtual machine request to the virtualized infrastructure management VIM;
  • the third receiving module is further configured to receive a network and a virtual machine created by the VIM to successfully create a response.
  • a VNF optimization apparatus including: a sending module configured to send a notification message of successful startup to a VNFM; and a second communication module configured to receive a response message of the VNFM, and The VNFM communicates and performs data configuration.
  • a computer storage medium comprising a set of computer executable instructions for executing a VNFM side VNF optimization method.
  • a computer storage medium comprising a set of computer executable instructions for executing a VNF optimization method on a VNF side.
  • FIG. 1 is a structural diagram of an NFV system according to the related art
  • FIG. 2 is a flow chart of VNF instantiation when NFVO is responsible for allocating resources according to the related art
  • VNFM is responsible for allocating resources and an EM initiates an instantiation request according to the related art
  • VNFM is responsible for allocating resources and NFVO initiates an instantiation request according to the related art
  • FIG. 5 is a flowchart of a first method of VNF optimization according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of a second method of VNF optimization according to an embodiment of the present invention.
  • FIG. 7 is a flowchart of a method 3 of VNF optimization according to an embodiment of the present invention.
  • FIG. 8 is a flowchart of a fourth method of VNF optimization according to an embodiment of the present invention.
  • FIG. 9 is a flowchart of a fifth method of VNF optimization according to an embodiment of the present invention.
  • FIG. 10 is a structural block diagram of a VNF optimization apparatus 1 according to an embodiment of the present invention.
  • FIG. 11 is a structural block diagram of a VNF optimization apparatus 2 according to an embodiment of the present invention.
  • FIG. 12 is a structural block diagram of a VNF optimization apparatus 3 according to an embodiment of the present invention.
  • FIG. 13 is a structural block diagram of a VNF optimization apparatus 4 according to an embodiment of the present invention.
  • FIG. 14 is a structural block diagram of a VNF optimization apparatus 5 according to an embodiment of the present invention.
  • Figure 15 is a flowchart 1 of a method according to at least one embodiment of the present invention.
  • 16 is a second flowchart of a method according to at least one embodiment of the present invention.
  • FIG. 17 is a third flowchart of a method according to at least one embodiment of the present invention.
  • FIG. 5 is a flowchart of a VNF optimization method according to an embodiment of the present invention. As shown in FIG. 5, the method includes the following steps:
  • the VNFM After receiving the initialization success message, the VNFM receives the notification message that the VNF is successfully started.
  • the VNFM communicates with the VNF and configures the VNF data in response to the notification message.
  • the receiving, by the VNFM, an initialization success message includes:
  • the VNFM receives an instantiation request of the NFVO and processes the instantiation request;
  • the VNFM sends a resource reservation request to the NFVO and receives a resource reservation success message sent by the NFVO.
  • the embodiment includes the following steps: before the VNFM receives the notification message that the VNF is successfully started, the method further includes:
  • the VNFM receives an instantiation request of the NFVO, and processes the instantiation request.
  • the VNFM sends a resource reservation request to the NFVO and receives a resource reservation success message sent by the NFVO.
  • S603 in Fig. 6 corresponds to S501 in Fig. 5, and S604 in Fig. 6 corresponds to S502 in Fig. 5.
  • the receiving, by the VNFM, an initialization success message includes:
  • the VNFM receives an instantiation request of the EM
  • the VNFM sends a legality check request, a feasibility check request, and a resource reservation request to the NFVO;
  • VNFM Receiving, by the VNFM, a resource reservation success message sent by the NFVO, and sending a request for creating a network and a virtual machine to the virtualization infrastructure management VIM;
  • the VNFM receives a successful response from the network and virtual machine created by the VIM.
  • the present embodiment includes the following steps: before the VNFM receives the notification message that the VNF successfully starts, the SNF further includes:
  • the VNFM receives an instantiation request of an EM.
  • the VNFM sends a legality check request, a feasibility check request, and a resource reservation request to the NFVO.
  • the VNFM receives a resource reservation success message sent by the NFVO, and sends a request for creating a network and a virtual machine to the virtualization infrastructure management VIM.
  • the VNFM receives a successful response of the network and the virtual machine created by the VIM.
  • S705 in Fig. 7 corresponds to S501 in Fig. 5
  • S706 in Fig. 7 corresponds to S502 in Fig. 5.
  • the receiving, by the VNFM, an initialization success message includes:
  • the VNFM receives an instantiation request of the NFVO
  • the VNFM sends a legality check request, a feasibility check request, and a resource reservation request to the NFVO;
  • the VNFM receives a successful response from the network and virtual machine created by the VIM.
  • the embodiment includes the following steps: before the notification message that the VNFM successfully starts the VNF, the SNF is further included:
  • the VNFM receives an instantiation request of the NFVO.
  • the VNFM sends a legality check request, a feasibility check request, and a resource reservation request to the NFVO.
  • the VNFM receives a resource reservation success message sent by the NFVO, and sends a request for creating a network and a virtual machine to the VIM.
  • the VNFM receives a successful response of the network and the virtual machine created by the VIM.
  • S805 in Fig. 8 corresponds to S501 in Fig. 5
  • S806 in Fig. 8 corresponds to S502 in Fig. 5.
  • the embodiment of the invention further provides a VNF optimization method for the virtualized network function, as shown in FIG. 9, comprising the following steps:
  • the VNF sends a notification message of successful startup to the VNFM.
  • the VNF receives a response message of the VNFM, where the VNF communicates with the VNFM and performs data configuration.
  • the embodiment of the present invention provides a virtualized network function VNF optimization apparatus, as shown in FIG. 10, comprising: a receiving module 10, configured to receive a notification message that the VNF is successfully started after receiving the initialization success message; the first communication module 20. Configuring to communicate with the VNF and configure the VNF data in response to the notification message.
  • the apparatus further includes: a first receiving module 1101 configured to receive an instantiation request of the NFVO, and process the real
  • the first sending module 1102 is configured to send a resource reservation request to the NFVO, and receive a resource reservation success message sent by the NFVO, and notify the receiving module 10.
  • the apparatus further includes: a second receiving module 1201 configured to receive an instantiation request of the EM; and a second sending module 1202 configured to the NFVO Sending a legality check request, a feasibility check request, and a resource reservation request;
  • the second receiving module 1201 is further configured to receive a resource reservation success message sent by the NFVO;
  • the second sending module 1202 is further configured to send a create network and virtual machine request to the virtualized infrastructure management VIM;
  • the second receiving module 1201 is further configured to receive a network and virtual machine creation success response sent by the VIM.
  • the apparatus further includes: a third receiving module 1301 configured to receive an instantiation request of the NFVO; and a third sending module 1302 configured to The NFVO sends a legality check request, a feasibility check request, and a resource reservation request;
  • the third receiving module 1301 is further configured to receive a resource reservation success message sent by the NFVO.
  • the third sending module 1302 is further configured to send a create network and virtual machine request to the virtualized infrastructure management VIM;
  • the third receiving module 1301 is further configured to receive a network and virtual machine creation success response sent by the VIM.
  • the embodiment of the present invention further provides a virtualized network function VNF optimization apparatus, as shown in FIG. 14, comprising: a sending module 11 configured to send a notification message of successful startup to the VNFM; and a second communication module 12 configured to receive The VNFM response message communicates with the VNFM and performs data configuration.
  • a sending module 11 configured to send a notification message of successful startup to the VNFM
  • a second communication module 12 configured to receive The VNFM response message communicates with the VNFM and performs data configuration.
  • the original instantiation process is improved.
  • the VNFM does not immediately communicate with the VNF and configures the VNF data, but waits for the VNF itself to be started.
  • the VNF is notified by the VNF that the VNFM is successfully started.
  • the VNFM performs the following steps. The specific steps are as follows. For the specific process, see Figure 15:
  • Steps S1501-1511 are the same as steps S201-S211;
  • the VNFM does not immediately communicate with the VNF or configure the VNF data, and needs to wait for the VNF to successfully start the notification;
  • VNFM responds to VNF response
  • Steps S1515-1519 are the same as steps S213-S217.
  • the original instantiation process is improved.
  • VIM creates network, create VMs, and returns a successful response to the VNFM" step
  • the VNFM does not immediately communicate with the VNF and configures, but waits for the VNF.
  • the VNF is notified by the VNF that the VNFM is successfully started.
  • the VNFM performs the subsequent steps.
  • the specific steps are as follows. For the specific process, see Figure 16:
  • Steps S1601-1607 are the same as steps S301-S307;
  • VNFM does not immediately communicate with the VNF or configure the VNF data, and needs to wait for the VNF to successfully start the notification;
  • the VNFM responds to the VNF
  • Steps S1611-S1616 are the same as steps S309-S314.
  • the original instantiation process is improved.
  • VIM creates a network
  • the VNFM returns a successful response to the VNFM step
  • the VNFM does not immediately communicate with the VNF and configures, but waits for the VNF.
  • the VNF is notified by the VNF that the VNFM is successfully started.
  • the VNFM performs the subsequent steps.
  • the specific steps are as follows. For the specific process, see Figure 17:
  • Steps S1701-1708 are the same as steps S401-S408;
  • the VNFM does not immediately communicate with the VNF or configure the VNF data, and needs to wait for the VNF to successfully start the notification;
  • VNFM responds to VNF
  • Steps S1712-S1717 are the same as steps S410-S415.
  • an embodiment of the present invention further provides a computer storage medium, where the storage medium includes a set of computer executable instructions for executing a VNF optimization method on a VNFM side.
  • the embodiment of the invention further provides a computer storage medium, the storage medium comprising a set of computer executable instructions for executing a VNF optimization method on the VNF side.
  • the reliability of the VNF configuration command execution is improved, the execution failure of the VNF configuration command is reduced, and the VNF is improved.
  • modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in a storage device by a computing device, or they may be fabricated into individual integrated circuit modules, or Multiple modes Blocks or steps are made in a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

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Abstract

L'invention concerne un procédé, un dispositif et un système pour optimiser une fonction de réseau virtualisé (VNF). Le procédé comprend les étapes suivante : après la réception d'un message de réussite d'initialisation, un gestionnaire de fonction de réseau virtualisé (VNFM) reçoit un message de notification à propos de la réussite de l'activation d'un VNF ; et, en réponse au message de notification, le VNFM communique avec le VNF et configure les données du VNF. La présente invention améliore la fiabilité d'exécution d'une instruction de configuration de VNF, réduit la probabilité d'une défaillance dans l'exécution de l'instruction de configuration de VNF, et améliore le taux de réussite de l'instanciation du VNF.
PCT/CN2015/074703 2014-09-09 2015-03-20 Procédé, dispositif et système pour optimiser une fonction de réseau virtualisé (vnf) WO2016037479A1 (fr)

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