WO2016115879A1 - Procédé et appareil pour établir une connexion entre une fonction de réseau virtualisée et un système de gestion d'élément de réseau - Google Patents

Procédé et appareil pour établir une connexion entre une fonction de réseau virtualisée et un système de gestion d'élément de réseau Download PDF

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WO2016115879A1
WO2016115879A1 PCT/CN2015/086754 CN2015086754W WO2016115879A1 WO 2016115879 A1 WO2016115879 A1 WO 2016115879A1 CN 2015086754 W CN2015086754 W CN 2015086754W WO 2016115879 A1 WO2016115879 A1 WO 2016115879A1
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vnf
ems
address information
instantiated
vnfm
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PCT/CN2015/086754
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English (en)
Chinese (zh)
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祝伟宏
肖维金
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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
    • H04L41/40—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 document relates to the network function virtualization technology in the field of wireless communication, especially a method, device and computer readable by a virtualized network function (VNF) and an element management system (EMS). Storage medium.
  • VNF virtualized network function
  • EMS element management system
  • the interface between the Network Management System (NMS) and the Element Management System (EMS) is called the northbound interface (Itf-N).
  • the EMS mainly completes the network element management layer (EML) function in the International Telecommunication Union Telecommunication Management Network (ITU TMN), that is, completes the management function of one or more mobile communication devices, and usually the EMS between different device suppliers cannot be universal.
  • the NMS mainly performs the network management layer (NML) function in the ITU TMN and is responsible for the management of all network elements in a managed network. In the case of multiple device vendors in a managed network (called a subnet), the entire subnet can be managed through its own EMS management.
  • NFV Network Functions Virtualization
  • VNFM virtualized network function
  • EMS virtualized EMS
  • the embodiment of the invention provides a method, a device and a computer readable storage medium for establishing a connection between a virtualized network function and a network element management system, and is capable of establishing a connection between an EMS and an instantiated VNF in a virtualized network environment.
  • the embodiment of the invention provides a method for establishing a connection between a virtualized network function VNF and a network element management system EMS, including:
  • the VNF manager VNFM instantiates the VNF according to the received request to instantiate the VNF;
  • the VNFM obtains the address information of the EMS corresponding to the VNF, and sends the address information of the EMS to the VNF, so that the VNF establishes a connection with the EMS according to the address information of the EMS; or the VNFM notifies the EMS.
  • the VNF is instantiated, and the address information of the VNF instance is sent to the EMS, so that the EMS establishes a connection with the VNF according to the address information of the VNF.
  • the VNFM instantiates the VNF according to the request for the instantiated VNF, including: after receiving the request for instantiating the VNF, the VNFM checks whether the EMS corresponding to the VNF to be instantiated already exists, if If yes, the VNF is instantiated; if not, the EMS corresponding to the VNF is first instantiated, the address information of the EMS is recorded, and the VNF is instantiated.
  • the recording the address information of the EMS includes: the VNFM records address information of the EMS in at least one network unit: VNFM, network function virtualization orchestrator NFVO, network management system NMS, and operation Support system OSS.
  • the checking whether the EMS corresponding to the VNF to be instantiated already exists includes: determining whether the EMS exists according to the vendor identifier checking the EMS information list; and/or checking the EMS information according to the vendor identifier and the network service instance identifier. The list determines if the EMS exists.
  • the obtaining of the vendor identifier includes: obtaining from a VNF descriptor corresponding to the VNF to be instantiated; and/or obtaining from a VNF record of the network service record NSR where the VNF is to be instantiated.
  • the VNFM acquires address information of the EMS corresponding to the VNF, including:
  • the VNFM acquires address information of the EMS from at least one network unit: VNFM, network function virtualization orchestrator NFVO, network management system NMS, and operation support system OSS.
  • the embodiment of the present invention further provides a device for establishing a connection between a virtualized network function VNF and a network element management system EMS, where the device includes an instantiation execution module and an address information sending module, where:
  • the instantiating execution module is configured to instantiate the VNF according to the received request to instantiate the VNF;
  • the address information sending module is configured to acquire the address information of the EMS corresponding to the VNF, and send the address information of the EMS to the VNF, so that the VNF establishes a connection with the EMS according to the address information of the EMS; or And sending the address information of the VNF instance to the EMS, so that the EMS establishes a connection with the VNF according to the address information of the VNF.
  • the instantiating execution module instantiates the VNF according to the received request for instantiating the VNF, including: after the instantiation execution module receives the request for instantiating the VNF, checking, corresponding to the VNF to be instantiated Whether the EMS already exists, if present, the VNF is instantiated; if not, the EMS corresponding to the VNF is first instantiated, the address information of the EMS is recorded, and the VNF is instantiated.
  • the instantiated execution module records address information of the EMS in at least one network unit: a VNFM, a network function virtualization orchestrator NFVO, a network management system NMS, and an operation support system OSS.
  • the instantiation execution module checks whether an EMS corresponding to the VNF to be instantiated already exists, including: determining whether the EMS exists according to the vendor identifier check EMS information list; and/or, according to the vendor identifier and the network service instance The identifier checks the EMS information list to determine whether the EMS exists.
  • the obtaining manner of the vendor identifier includes: the instantiated execution module is obtained from a VNF descriptor corresponding to the VNF to be instantiated; and/or, the instantiated execution module is from the VNF to be instantiated
  • the network service record is obtained from the NSR's VNF record.
  • the address information sending module acquires the address information of the EMS corresponding to the VNF, where the address information sending module acquires the location of the EMS from at least one network unit Address information: VNFM, network function virtualization orchestrator NFVO, network management system NMS and operation support system OSS.
  • VNFM network function virtualization orchestrator NFVO
  • NMS network management system
  • OSS operation support system
  • the embodiment of the present invention further provides a computer readable storage medium, which stores program instructions, and when the program instruction is executed, can implement a virtualized network function VNF provided by the embodiment of the present invention to establish a connection with the network element management system EMS. Methods.
  • the method, the device and the computer readable storage medium of the embodiments of the present invention implement the instantiation of the virtualized EMS by using the VNFM, and establish a connection between the VNF and the EMS by using the VNFM to inform the VNF of the address of the EMS, or by using the VNFM.
  • the way to inform the EMS of the address of the VNF enables the EMS to establish a connection with the VNF, thereby realizing the instantiation of the virtual EMS in the virtualized environment and establishing the connection between the VNF and the EMS.
  • FIG. 1 is a flowchart of establishing a connection between a VNF and an EMS according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic structural diagram of an apparatus for establishing a connection between a VNF and an EMS according to Embodiment 2 of the present invention
  • FIG. 3 is a schematic structural diagram of an apparatus for establishing a connection between a VNF and an EMS in which an application example 1EMS information is stored only in an OSS;
  • FIG. 4 is a schematic structural diagram of an apparatus for establishing a connection between a VNF and an EMS in which an application example 2EMS information is simultaneously stored in an OSS and a VNFM;
  • FIG. 5 is a flow chart of a method for establishing a connection between an application example 3VNF and an EMS;
  • FIG. 6 is a flow chart of a method for instantiating an EMS and a VNF and establishing a connection using the application example 5.
  • the method in this embodiment includes:
  • Step 110 The VNFM instantiates the VNF according to the received request for instantiating the VNF.
  • Step 120 The VNFM obtains the address information of the EMS corresponding to the VNF, and sends the EMS address information to the VNF, so that the VNF establishes a connection with the EMS according to the EMS address information; or the VNFM notifies the EMS that the VNF is instantiated. And transmitting the address information of the VNF instance to the EMS, so that the EMS establishes a connection with the VNF according to the VNF address information.
  • the request for instantiating the VNF in step 110 may be a VNF instantiation command.
  • the request may be initiated by at least one of the following network elements: Operation Supporting System (OSS), NMS, NFV Orchestrator (NFVO), and VNFM.
  • OSS Operation Supporting System
  • NMS NMS
  • NFV Orchestrator NFVO
  • VNFM VNFM
  • the VNFM may instantiate the VNF directly according to the received request to instantiate the VNF.
  • the VNFM is based on the request to instantiate the VNF.
  • the instantiating the VNF may include the following steps: after receiving the request for instantiating the VNF, the VNFM first checks whether the EMS corresponding to the VNF to be instantiated already exists, and if so, instantiates the VNF, if not, if First instantiating the EMS corresponding to the VNF, recording the address information of the EMS, and instantiating the VNF;
  • the VNFM may check whether the EMS corresponding to the VNF to be instantiated already exists by using the following method:
  • Method 1 check the EMS information list according to the supplier identifier to determine whether the EMS exists; If the supplier identifier is found in the EMS information list, the EMS exists. If it is not found in the EMS information list, the EMS does not exist.
  • the method for obtaining the vendor identifier includes: obtaining from a VNF descriptor (VNFD) corresponding to the VNF to be instantiated, or from the network service record in which the VNF is to be instantiated (Network Service) Record) is obtained in VNFR (VNF record).
  • VNFD VNF descriptor
  • Network Service Network Service
  • the EMS information list is checked according to the vendor identifier and the network service (NS) instance identifier (such as the NSID) to determine whether the EMS exists. Specifically, if the EMS information list is found, the EMS has been Exist, if not found in the EMS information list, indicating that the EMS does not exist;
  • NS network service
  • the acquisition of the supplier identification is described in the first method.
  • the NS instance identifier (such as the NSID) corresponding to the VNF may be obtained from the VNFD corresponding to the VNF to be instantiated.
  • Instantiating the EMS corresponding to the VNF includes: VNFM instantiating the virtualized EMS to implement instantiation of the virtual EMS in the virtualized environment.
  • VNFM instantiating the virtualized EMS to implement instantiation of the virtual EMS in the virtualized environment.
  • the EMS is used as a special VNF in the Network Service (NS) to instantiate the EMS according to the method of instantiating the VNF, and establish a connection between the EMS and the NMS.
  • NS Network Service
  • the VNFM may record EMS address information in at least one of the following network elements: VNFM, NFVO, NMS, and OSS.
  • the VNFM may obtain an EMS address from one or more of the following network elements: VNFM, NFVO, OSS, NMS.
  • the address information VNFM of the VNF instance can be directly obtained or obtained through NFVO.
  • This embodiment is directed to the problem of establishing a connection between an EMS and an instantiated VNF in a virtualized network environment, and proposes a method in which the VNFM notifies the VNF of the address of the EMS or informs the EMS of the address of the VNF, so that the VNF Establish a connection with the EMS to achieve the goal of establishing a connection between the VNF and the EMS in a virtualized environment.
  • the embodiment provides an apparatus for implementing the method of the first embodiment. As shown in FIG. 2, the apparatus includes:
  • Instantiating the execution module 210 configured to instantiate the VNF according to the received request to instantiate the VNF;
  • the instantiation execution module 210 receives the instantiated VNF request from the OSS (NMS) or NFVO or from the local device VNFM, and may directly instantiate the VNF to be instantiated according to the request, or may first check the corresponding VNF to be instantiated. Whether the EMS already exists, if present, the VNF is instantiated, if not, the EMS corresponding to the VNF is first instantiated, the address information of the EMS is recorded, and the VNF is instantiated;
  • the instantiation execution module 210 checks whether the EMS corresponding to the VNF to be instantiated already exists according to one of the two methods described in the first embodiment.
  • the address information sending module 220 is configured to obtain the address information of the EMS corresponding to the VNF, and send the EMS address information to the VNF, so that the VNF establishes a connection with the EMS according to the EMS address information; or is configured to notify the EMS.
  • the VNF is instantiated, and the address information of the VNF instance is sent to the EMS, so that the EMS establishes a connection with the VNF according to the VNF address information.
  • the device further includes an EMS information storage module 230: the module is configured to record address information of the EMS corresponding to the VNF, and the EMS information storage module 230 may be located in at least one network unit: OSS , NMS, NFVO and VNFM.
  • the present embodiment is directed to a device for establishing a connection between an EMS and an instantiated VNF in a virtualized network environment, and an apparatus including at least an instantiation execution module 210 and an address information transmission module 220 is provided.
  • the goal of establishing a connection between VNF and EMS in a virtualized environment is directed to a device for establishing a connection between an EMS and an instantiated VNF in a virtualized network environment.
  • This example describes a device for establishing a connection between a VNF and an EMS, as shown in FIG. 3, including the following parts:
  • Instantiation request initiation module A1 located at OSS (NMS) or NFVO; located at VNFM
  • the instantiation execution module A2 and the address information transmission module A3 are located in the EMS information storage module A4 of the OSS (NMS).
  • NMS OSS
  • OSS is combined with NMS, and in other examples, it can be set separately.
  • the instantiation request initiating module A1 located in the OSS (NMS) or NFVO initiates a VNF instantiation request;
  • the instantiation execution module A2 of the VNFM receives the VNF instantiation request, checks whether the EMS corresponding to the VNF to be instantiated already exists, and if so, instantiates the VNF, and if not, instantiates the first
  • the EMS corresponding to the VNF the address information of the EMS is recorded by the EMS information storage module A3 located in the OSS (NMS), and the VNF is instantiated;
  • the address information sending module A3 located in the VNFM obtains the EMS address information from the EMS information storage module A4 located in the OSS (NMS);
  • the address information sending module A3 sends the obtained EMS address information to the VNF, so that the VNF establishes a connection with the EMS according to the EMS address, or the address information sending module A3 notifies the EMS that the VNF instantiation is completed, and the The address information of the VNF instance is sent to the EMS, so that the EMS establishes a connection with the VNF according to the VNF address.
  • This example describes a device for establishing a connection between a VNF and an EMS.
  • the difference from the application example 1 is that the EMS information storage module is located at the VNFM in addition to the OSS (NMS), as shown in FIG. 4, and includes the following parts:
  • the instantiation request initiating module B1 located in the OSS (NMS) or NFVO initiates a VNF instantiation request
  • the instantiation execution module B2 located in the VNFM receives the VNF instantiation request, and checks the Whether the EMS corresponding to the VNF to be instantiated already exists, if present, instantiating the VNF, if not, first instantiating the EMS corresponding to the VNF, and recording the EMS in the local EMS information storage module B4 Address information, and synchronize the record with the EMS information storage module B4 located in the OSS (NMS), and then instantiate the VNF;
  • the address information sending module B3 of the VNFM obtains the EMS address information from the local EMS information storage module B4.
  • the address information sending module B3 sends the obtained EMS address information to the VNF, so that the VNF establishes a connection with the EMS according to the EMS address, or the instantiation execution module B3 notifies the EMS that the VNF instantiation is completed, and the The address information of the VNF instance is sent to the EMS, so that the EMS establishes a connection with the VNF according to the VNF address.
  • This example describes a method for establishing a connection between a VNF and an EMS, as shown in FIG. 5, including the following steps:
  • the instantiation execution module located in the VNFM receives the request to instantiate the VNF;
  • the instantiating execution module checks the content in the EMS information storage module according to the vendor attribute in the VNFD corresponding to the VNF to be instantiated to determine whether the EMS corresponding to the VNF to be instantiated already exists. If the EMS already exists, go to S4, if the EMS does not exist, go to S3;
  • the instantiation execution module checks the EMS information list according to the Vender vendor information, and if it can be found, the EMS already exists.
  • the instantiating execution module instantiates the EMS corresponding to the VNF, and records information such as the address of the EMS to the EMS information storage module located in the VNFM;
  • the EMS information storage module stores an EMS information list, where each record is related to an EMS, and the EMS information includes at least a vendor identifier and an EMS address.
  • the EMS information may also be Includes EMS logo.
  • the address information sending module acquires the EMS corresponding to the VNF from the EMS information storage module. Address, the EMS address and the deployment (Deployment) parameters are sent to the VNF;
  • the deployment parameters are the parameters required for the initial deployment of the VNF, that is, some parameters that need to be set before the VNF is instantiated before entering the working state. In addition to the deployment parameters, other required parameters can be sent to the VNF along with the EMS address.
  • the VNF establishes a connection with the EMS according to the EMS address.
  • This example describes a method for establishing a connection between a VNF and an EMS.
  • the difference between the process of establishing a connection with the VNF and the EMS described in the application example 1 is that, when checking whether the EMS exists, in addition to the NSID according to the vendor identifier, 2EMS is required.
  • the information storage module is located at the NMS, and the EMS initiates the connection with the VNF, including the following steps:
  • the instantiation execution module located in the VNFM receives the request to instantiate the VNF;
  • the instantiated execution module queries the EMS information list according to the vendor and the NSID. Only when the EMS that meets the vendor and the NSID is found, the corresponding EMS is considered to exist. This is mainly used when one vendor has multiple EMSs.
  • the instantiating execution module instantiates the EMS corresponding to the VNF, and reports the information such as the address of the EMS to the NMS through the NFVO, and records the EMS information storage module located in the NMS;
  • the EMS information storage module stores an EMS information list, where each record is an EMS related information, and the EMS information includes at least a vendor identifier, an NS instance identifier (such as an NSID), and an EMS address.
  • the EMS information may also include an EMS identifier.
  • the address information sending module acquires the address of the EMS corresponding to the VNF from the EMS information storage module of the NMS through the NFVO, and sends the address of the instantiated VNF to the EMS;
  • the EMS establishes a connection with the VNF according to the address of the VNF.
  • This example describes a method for establishing a connection between a VNF and an EMS.
  • the EMS is a VNF of the NS, and includes the following steps:
  • the VNF instantiation request initiating module located in the NFVO first checks whether the VNFD of the EMS is included in the VNFD list in the corresponding NSD (network service descriptor), and if so, then transfers to S2, if not Including, then go to S6;
  • the VNF instantiation request initiation module of NFVO is responsible for receiving and determining the NS instantiation request.
  • a module may also be separately set to perform this operation.
  • the above NSD defines an NS, which contains a list of VNFDs for indicating which VNFs are included in this NS.
  • the VNF instantiates the request initiation module to initiate a request for instantiating the EMS.
  • the VNF instantiation request initiating module may first determine whether the following EMS exists by querying the EMS information list (refer to the first mode and the second mode in the first embodiment), and initiate an instantiation request for the EMS that is not instantiated.
  • the EMS is instantiated as a VNF, ie, the method of instantiating the VNF is used to instantiate the EMS.
  • the EMS establishes a connection with the NMS, and stores information such as an EMS address in the NMS;
  • Determining if there is still an EMS need to be instantiated can be done by checking the VNFD list in the corresponding NSD to find out if there are any VNFDs of the uninstantiated EMS.
  • the above S1-S5 are steps for instantiating the EMS and can be performed independently.
  • the VNF instantiating request initiation module initiates a request to instantiate the VNF, where the VNF is The above instantiated EMSs are located in the same NS, optionally from the same vendor;
  • the address information sending module obtains the EMS address corresponding to the VNF from the EMS information storage module of the NMS through the NFVO, and sends the EMS address and the deployment parameter to the VNF together with the deployment parameter;
  • the VNF establishes a connection with the EMS according to the EMS address.
  • the embodiment of the present invention further provides a computer readable storage medium, which stores program instructions, and when the program instruction is executed, can implement a virtualized network function VNF and an NE management system EMS provided by Embodiment 1 of the present invention.
  • the method of connection is not limited to a computer readable storage medium, which stores program instructions, and when the program instruction is executed, can implement a virtualized network function VNF and an NE management system EMS provided by Embodiment 1 of the present invention. The method of connection.
  • 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 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.
  • each device/function module/functional unit in the above embodiment When each 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 embodiment of the invention implements the instantiation of the virtual EMS in the virtualized environment and the goal of establishing a connection between the VNF and the EMS.

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Abstract

Conformément à des modes de réalisation, la présente invention concerne un procédé, un appareil et un support de stockage lisible par ordinateur pour établir une connexion entre une fonction de réseau virtualisée (VNF) et un système de gestion d'élément de réseau (EMS), le procédé comprenant les opérations suivantes : un gestionnaire de VNF (VNFM) instancie la VNF selon une requête d'instanciation de VNF reçue ; le VFNM obtient des informations d'adresse de l'EMS correspondant à la VNF et transmet les informations d'adresse de l'EMS à la VNF de telle sorte que la VNF établit une connexion avec l'EMS selon les informations d'adresse de l'EMS ; ou bien, le VNFM informe l'EMS de l'achèvement de l'instanciation de VNF et transmet des informations d'adresse d'une instance de VNF à l'EMS de telle sorte que l'EMS établit une connexion avec la VNF selon les informations d'adresse de la VNF.
PCT/CN2015/086754 2015-01-20 2015-08-12 Procédé et appareil pour établir une connexion entre une fonction de réseau virtualisée et un système de gestion d'élément de réseau WO2016115879A1 (fr)

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