WO2015117498A1 - 一种发现拓扑网络的方法、网络设备及存储介质 - Google Patents

一种发现拓扑网络的方法、网络设备及存储介质 Download PDF

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Publication number
WO2015117498A1
WO2015117498A1 PCT/CN2014/093622 CN2014093622W WO2015117498A1 WO 2015117498 A1 WO2015117498 A1 WO 2015117498A1 CN 2014093622 W CN2014093622 W CN 2014093622W WO 2015117498 A1 WO2015117498 A1 WO 2015117498A1
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Prior art keywords
ems
vnf
vnfm
access
access information
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PCT/CN2014/093622
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English (en)
French (fr)
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刘磊
周智伟
陈露静
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中兴通讯股份有限公司
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Priority to EP14882059.0A priority Critical patent/EP3174245B1/en
Publication of WO2015117498A1 publication Critical patent/WO2015117498A1/zh

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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
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0896—Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities
    • 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
    • H04L41/12—Discovery or management of network topologies
    • H04L41/122—Discovery or management of network topologies of virtualised topologies, e.g. software-defined networks [SDN] or network function virtualisation [NFV]
    • 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
    • H04L41/08—Configuration management of networks or network elements
    • H04L41/0876—Aspects of the degree of configuration automation
    • H04L41/0886—Fully automatic configuration

Definitions

  • the present invention relates to a mobile communication network management technology, and in particular, to a method, a network device, and a storage medium for discovering a topology network.
  • Network Function Virtualization realizes the separation of network functions and network devices, realizes the independent development of software and hardware, and reduces the cost of the network through the virtualization of computing resources, storage resources and network resources; however, NFV requirements Network functions can be deployed dynamically and flexibly, regardless of the physical network.
  • NFV-MANO NFV Management and Orchestration domain
  • the architecture includes: Network Functions Virtualization Orchestrator (NFVO), Virtualized Network Function Manager (VNFM), and Virtualized Network Function (VNF); among them, NFVO is responsible for Manage and schedule VNFs and resources within the virtualization management platform. VNFM is responsible for VNF lifecycle management.
  • NFVO Network Functions Virtualization Orchestrator
  • VNFM Virtualized Network Function Manager
  • VNF Virtualized Network Function
  • Virtual network automatic deployment includes: user, or Operation Support System (OSS), or Business Support System (BSS), or Element Management System (EMS) to create NFVO
  • OSS Operation Support System
  • BSS Business Support System
  • EMS Element Management System
  • the request of the VNF instance after the NFVO completes the validity verification, sends a VNF instance request to the VNFM,
  • the file location information of the VNF package is transmitted to the VNFM;
  • the VNFM downloads the VNF information, performs resource verification and calculation, and returns the calculation result to the NFVO;
  • the NFVO allocates the resource according to the resource list information returned by the VNFM, and notifies the VNFM to start the VNF; the VNF starts.
  • the virtual network automatic deployment initialization process ends, and the VNF instantiation is implemented.
  • the virtualized network will flexibly expand and contract during operation, causing the network to change constantly.
  • the traditional method of discovering the topology network cannot actively perceive the creation or cancellation of the network node, and cannot cancel the network node and the network disconnection abnormality. To make accurate judgments, human intervention is required.
  • EMS manages the topology network directly with network nodes such as VNF, which greatly reduces the performance of EMS processing.
  • the embodiments of the present invention are directed to a method, a network device, and a storage medium for discovering a topology network, which can quickly and accurately discover a topology network during deployment and operation of a virtualized network.
  • An embodiment of the present invention provides a method for discovering a topology network, where the method includes: the VNFM acquires access information of a VNF managed by itself, and sends the obtained access information to the EMS.
  • the method before the VNFM acquires the access information of the VNF managed by the VNF, the method further includes: the VNFM receives the access request sent by the EMS, and sends its own access information to the EMS according to the access request.
  • the VNFM obtains access information of the VNF managed by the VNF, and the VNFM sends an access proxy information request to all VNFs managed by the VNFM, and receives the access information of the VNF sent by the VNF.
  • the method further includes: when the VNF management VNF is revoked, the VNFM sends a notification to the EMS to revoke the VNF access.
  • An embodiment of the present invention further provides a method for discovering a topology network, including: receiving, by an EMS, a VNFM The access information of the VNF managed by the VNFM is sent, and the VNF is accessed to the EMS topology management according to the access information.
  • the method before the EMS receives the access information of the VNF managed by the VNFM sent by the VNFM, the method further includes: when the EMS queries the VNFM, acquiring the access information of the VNFM; The incoming information accesses the VNFM to the EMS topology management.
  • the accessing the VNF to the EMS topology management according to the access information includes: downloading and parsing according to an FTP path of the VNF accessing the EMS proxy request information file in the access information. Enter the EMS request information file to access the VNF to the EMS topology management.
  • the method further includes: the EMS receiving the notification of the VNF access sent by the VNFM, and deleting the access of the VNF according to the notification.
  • the embodiment of the present invention further provides a VNFM, where the VNFM includes: a first acquiring module and a first sending module;
  • the first obtaining module is configured to obtain access information of a VNF managed by itself;
  • the first sending module is configured to send the obtained access information to the EMS.
  • the VNFM further includes: a first receiving module, configured to receive an access request sent by the EMS;
  • the first sending module is configured to send its own access information according to the access request.
  • the first acquiring module is configured to send an access proxy information request to all VNFs managed by the VNF, and receive the access information of the VNF sent by the VNF.
  • the first sending module is further configured to send a notification to the EMS to revoke the VNF access when the VNF management VNF is revoked.
  • An embodiment of the present invention further provides an EMS, where the EMS includes: a second receiving module and an access module;
  • the second receiving module is configured to receive the access information of the VNF managed by the VNFM sent by the VNFM;
  • the access module is configured to access the VNF to the EMS topology management according to the access information.
  • the EMS further includes: a second acquiring module, configured to query the VNFM, and obtain access information of the VNFM;
  • the access module is further configured to access the VNFM to the EMS topology management according to the access information of the VNFM.
  • the access module is configured to download and parse an access EMS request information file according to the FTP path of the VNF accessing the EMS proxy request information file in the access information, and access the VNF to EMS topology management.
  • the EMS further includes: a deleting module, configured to delete the access of the VNF according to the notification after the second receiving module receives the notification of the revoked VNF access sent by the VNFM.
  • the embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used to execute the foregoing method for discovering a topology network.
  • the VNFM obtains the access information of the VNF managed by the VNFM, and sends the obtained access information of the VNF to the EMS;
  • the access information of the VNF is used to access the VNF to the EMS topology management.
  • EMS actively discovers the life cycle change of VNFM by querying VNFM, and reduces the human intervention factor of EMS network topology; due to VNFM in telecommunication network The number is much smaller than the number of VNFs.
  • the VNF changes the VNF in the network through the VNFM, so that the EMS does not need to directly interact with the VNF when performing topology network management, which reduces the load of the EMS directly managing the VNF, and effectively improves the EMS management.
  • the performance of the network topology is not limited to:
  • the VNFM actively informs the EMS to revoke the VNF, and solves the problem that the EMS cannot detect the topology network changes after the VNF is revoked in the traditional discovery topology network method, so that the EMS can accurately acquire the topology network changes. Improve the accuracy of the EMS management topology network.
  • FIG. 1 is a schematic flowchart of a basic process of a method for discovering a topology network on a VNFM side according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a basic process of a method for discovering a topology network on an EMS side according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of processing of a method for discovering a topology network according to an embodiment of the present invention
  • FIG. 5 is a schematic flowchart of a process for discovering a topology network according to Embodiment 3 of the present invention.
  • FIG. 6 is a schematic structural diagram of a structure of a VNFM according to an embodiment of the present invention.
  • FIG. 7 is a schematic structural diagram of an EMS according to an embodiment of the present invention.
  • the VNFM obtains the access information of the VNF managed by the VNF, and sends the obtained access information of the VNF to the EMS.
  • the EMS accesses the VNF to the EMS according to the received access information of the VNF. Topology management.
  • the VNFM when the VNF managed by the VNFM is revoked, the VNFM sends a notification to the EMS to revoke the VNF access, and the EMS deletes the VNF according to the received notification of revoking the VNF access.
  • the basic processing flow of the method for discovering a topology network on the VNFM side of the embodiment of the present invention, as shown in FIG. 1 includes the following steps:
  • Step 101 The VNFM obtains access information of the VNF managed by the VNFM.
  • the VNFM sends an EMS access proxy information request to all VNFs managed by the VNFM;
  • Each VNF obtains its own access information according to the EMS access proxy information request and the standard interface of the access EMS defined between the VNF and the VNFM, and generates and stores an access EMS proxy request information file;
  • Each VNF sends a File Transfer Protocol (FTP) path of the file to the VNFM;
  • FTP File Transfer Protocol
  • the VNFM obtains the access information of the VNF according to the received FTP path.
  • the number of VNFs managed by the VNFM may be one or multiple.
  • the access information includes: an identifier of the accessed VNF.
  • Step 102 The VNFM sends the obtained access information to the EMS.
  • the VNFM sends the identifier of the accessed VNF and the FTP path of the access EMS proxy request information file to the EMS.
  • the method further includes:
  • the VNFM receives an access request sent by the EMS, and sends its own access information to the EMS according to the access request;
  • the access information includes: an identifier of the VNFM, an access operation identifier, an Internet Protocol (IP) address and port of the VNFM, a connection mode of the VNFM, a connection user name, and a connection password.
  • IP Internet Protocol
  • the method further includes:
  • the VNFM When the VNF managed by the VNFM is revoked, the VNFM sends a notification to the EMS to revoke the VNF access;
  • the notification includes: an identifier of the VNF and a deletion operation identifier.
  • the basic processing flow of the method for discovering the topology network on the EMS side of the embodiment of the present invention, as shown in FIG. 2, includes the following steps:
  • Step 201 The EMS receives the access information of the VNF managed by the VNFM sent by the VNFM.
  • the EMS may send a VNF discovery request to the VNFM; the VNFM obtains the access information of the VNF managed by the VNF according to the discovery request, and sends the access information of the VNF to the EMS; or the VNFM actively sends the information to the EMS. Access information of the VNF managed by itself, and sending the access information of the VNF to the EMS;
  • the access information of the VNF is: an identifier of the accessed VNF and an FTP path of the EMS proxy request information file.
  • Step 202 The EMS accesses the VNF to the EMS topology management according to the access information.
  • the EMS downloads and parses the access EMS proxy request information file according to the received FTP path of the access EMS proxy request information file, and accesses the VNF to the EMS topology management.
  • the method further includes:
  • the access information of the VNFM is obtained.
  • the EMS queries the VNFM in the network managed by the EMS, sends an access EMS request to the queried VNFM, and receives the access information of the VNFM sent by the VNFM.
  • the VNFM is accessed to the EMS topology management according to the access information of the VNFM.
  • the method further includes:
  • the EMS receives the notification of canceling the VNF access sent by the VNFM, and deletes the access of the VNF according to the notification;
  • the EMS searches for the accessed VNF according to the identity of the VNF instance in the notification, and is in the topology management of the EMS. Delete the access of the VNF.
  • the processing flow of the method for discovering the topology network in the first embodiment of the present invention includes the following steps:
  • step 301 the EMS queries the VNFM to obtain the access information of the VNFM, and accesses the VNFM to the EMS topology management according to the access information of the VNFM.
  • the EMS queries the VNFM in the network managed by itself, and sends an access request to the queried VNFM.
  • the VNFM sends its own access information to the EMS according to the access request.
  • the access information includes: an identifier of the VNFM, an access operation identifier, an IP address and port of the VNFM, a connection mode of the VNFM, a connection user name, and Connection password, etc.
  • the EMS receives the access information of the VNFM sent by the VNFM, and accesses the VNFM to the EMS topology management according to the access information of the VNFM.
  • Step 302 The EMS sends a VNF discovery request to the VNFM.
  • Step 303 After receiving the discovery request, the VNFM sends an access proxy information request to all VNFs managed by the VNFM.
  • the access proxy information request includes: an identifier of the VNF, an access operation identifier, an IP address and port of the VNF, a connection mode of the VNF, a connection user name, and a connection password.
  • Step 304 The VNF obtains its own access information according to the EMS access proxy information request and the standard interface of the access EMS defined between the VNF and the VNFM, generates and stores an access EMS proxy request information file, and stores the file.
  • the FTP path is sent to VNFM.
  • Step 305 the VNFM sends the obtained access information to the EMS.
  • the VNFM sends the identifier of the accessed VNF and the FTP path of the access EMS proxy request information file to the EMS.
  • Step 306 The EMS accesses the VNF to the EMS topology management according to the access information.
  • the EMS downloads and parses the access EMS proxy request information file according to the received FTP path of the access EMS proxy request information file, and accesses the VNF to the EMS topology management.
  • step 301 is not required.
  • the VNF that the VNF belongs to sends the VNF access information to the EMS.
  • the EMS connects the VNF to the EMS topology management scenario and terminates the VNF in the NFVO.
  • the EMS revokes the VNF connection.
  • the process flow includes the following steps:
  • Step 401 The VNFM terminates the VNF, and sends a notification to the EMS to cancel the VNF access.
  • the notification includes: an identifier of the VNF and a deletion operation identifier.
  • Step 402 The EMS receives the notification of canceling the VNF access sent by the VNFM, and deletes the access of the VNF according to the notification.
  • the EMS searches for the accessed VNF according to the identity of the VNF instance in the notification, and deletes the access of the VNF in the topology management of the EMS.
  • the VNFM has been connected to the EMS, and the VNFM manages the two VNFs of the VNF1 and the VNF2, and the network of the VNF2 is disconnected.
  • the processing flow of the method for discovering the topology network in the third embodiment of the present invention, as shown in FIG. 5, includes the following steps:
  • step 501 the EMS sends a VNF discovery request to the accessed VNFM.
  • Step 502 After receiving the discovery request, the VNFM sends an access to VNF1 and VNF2. Agent information request;
  • the access proxy information request includes: an identifier of the VNF, an access operation identifier, an IP address and port of the VNF, a connection mode of the VNF, a connection user name, and a connection password.
  • Step 503 The VNF1 obtains the access information of the VNF1 according to the EMS access proxy information request and the standard interface of the access EMS defined between the VNF and the VNFM, generates and stores an access EMS proxy request information file, and stores the file. FTP path is sent to VNFM;
  • VNF2 cannot obtain access information of VNF2.
  • Step 504 the VNFM sends the acquired access information of the VNF1 and the number of VNFs managed by the VNFM to the EMS;
  • the VNFM sends the identifier of the VNF1, the FTP path of the access EMS proxy request information file to the EMS, and the number of accessed VNFs to the EMS.
  • Step 505 The EMS accesses the VNF to the EMS topology management according to the access information.
  • the EMS downloads and parses the access EMS proxy request information file according to the received FTP path of the access EMS proxy request information file, and accesses the VNF1 to the EMS topology management;
  • the access information of the VNF2 fails to be queried, and the steps 501 to 504 may be continued according to actual needs.
  • the embodiment of the present invention further provides a VNFM, and the composition of the VNFM, as shown in FIG. 6, includes: a first obtaining module 11 and a first sending module 12;
  • the first obtaining module 11 is configured to obtain access information of a VNF managed by itself;
  • the access information includes: an identifier of the VNFM, an access operation identifier, an IP address and port of the VNFM, a connection mode of the VNFM, a connection user name, and a connection password.
  • the first sending module 12 is configured to send the obtained access information to the EMS.
  • the VNFM further includes: a first receiving module 13 configured to receive an access request sent by the EMS;
  • the first sending module 12 is configured to send its own access information according to the access request.
  • the first obtaining module 11 is configured to send an access proxy information request to all VNFs managed by the VNF, and receive the access information of the VNF sent by the VNF.
  • the first sending module 12 is configured to send the access EMS proxy request information file in the acquired access information of the VNF and the file transfer protocol FTP path of the file to the EMS.
  • the first sending module 12 is further configured to send a notification for revoking the VNF access to the EMS when the VNF managed by the VNFM is revoked;
  • the embodiment of the present invention further provides an EMS, and the composition of the EMS is as shown in FIG. 7 , and includes: a second receiving module 21 and an access module 22;
  • the second receiving module 21 is configured to receive the access information of the VNF managed by the VNFM sent by the VNFM.
  • the access information of the VNF is: an identifier of the accessed VNF and an FTP path of the EMS proxy request information file.
  • the access module 22 is configured to access the VNF to the EMS topology management according to the access information.
  • the EMS further includes: a second obtaining module 23, configured to query the VNFM, and obtain access information of the VNFM;
  • the access module 22 is configured to access the VNFM to the EMS topology management according to the access information of the VNFM.
  • the access module 22 is configured to connect to the VNF according to the access information.
  • the FTP path of the EMS proxy request information file is downloaded, and the access EMS request information file is downloaded and parsed, and the VNF is accessed to the EMS topology management.
  • the second obtaining module 23 is configured to query the VNFM in the VNF-managed network, send an access EMS request to the queried VNFM, and receive the VNFM access information sent by the VNFM.
  • the EMS further includes a deleting module 24 configured to delete the access of the VNF according to the notification after the second receiving module 21 receives the notification of the revoked VNF access sent by the VNFM.
  • the first obtaining module 11, the first sending module 12, the first receiving module 13, the second receiving module 21, the access module 22, the second obtaining module 23, and the deleting module 24 proposed by the embodiments of the present invention may all pass the processor.
  • the implementation may of course be implemented by a specific logic circuit; wherein the processor may be a processor on a VNFM or an EMS, and in practical applications, the processor may be a central processing unit (CPU) or a microprocessor (MPU). , digital signal processor (DSP) or field programmable gate array (FPGA).
  • CPU central processing unit
  • MPU microprocessor
  • DSP digital signal processor
  • FPGA field programmable gate array
  • the method for discovering the topology network is implemented in the form of a software function module, and is sold or used as a separate product, it may also be stored in a computer readable storage medium.
  • the technical solution of the embodiments of the present invention may be embodied in the form of a software product in essence or in the form of a software product stored in a storage medium, including a plurality of instructions.
  • a computer device (which may be a personal computer, server, or network device, etc.) is caused to perform all or part of the methods described in various embodiments of the present invention.
  • the foregoing storage medium includes various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • program codes such as a USB flash drive, a mobile hard disk, a read only memory (ROM), a magnetic disk, or an optical disk.
  • an embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores a computer program, and the computer program is used to perform the foregoing discovery of the embodiment of the present invention.
  • the method of topology network is a computer storage medium, where the computer storage medium stores a computer program, and the computer program is used to perform the foregoing discovery of the embodiment of the present invention.

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Abstract

本发明公开了一种发现拓扑网络的方法，虚拟化网络功能管理(VNFM)获取自身管理的虚拟化网络功能(VNF)的接入信息；将获取的接入信息发送至网元管理系统(EMS)，EMS根据所述接入信息将所述VNF接入到EMS拓扑管理。本发明还同时公开了另一种发现拓扑网络的方法、VNFM、EMS及计算机存储介质。

Description

一种发现拓扑网络的方法、网络设备及存储介质 技术领域
本发明涉及移动通信网络管理技术，尤其涉及一种发现拓扑网络的方法、网络设备及存储介质。
背景技术
现有技术中，网络功能均通过厂商专有的、或专门设计的网络设备来实现，网络功能与网络设备是超强耦合的关系，这在实际应用中有诸多不便。网络功能虚拟化(Network Function Virtualization，NFV)实现了网络功能和网络设备的分离，实现软件和硬件独立发展，通过计算资源、存储资源、网络资源的虚拟化来降低网络的成本；但是，NFV要求网络功能能够动态、灵活的进行部署，不受物理网络的限制。
根据欧洲电信标准化协会(European Telecommunications Standards Institute，ETSI)的规范要求，在网路功能虚拟化管理与协调流程(NFV Management and Orchestration，NFV-MANO)域定义一套自动化部署规范，实现一套虚拟化应用部署流程和架构。所述架构包括：网络功能虚拟化编排(Network Functions Virtualization Orchestrator，NFVO)、虚拟化网络功能管理(Virtualized Network Function Manager，VNFM)以及虚拟化网络功能(Virtualized Network Function，VNF)等；其中，NFVO负责管理和调度虚拟化管理平台内的VNF和资源，VNFM负责VNF的生命周期管理。
虚拟化网络自动部署包括：用户、或运营支撑系统(Operations Support System，OSS)、或业务支持系统(Business Support System，BSS)、或网元管理系统(Element Management System，EMS)等向NFVO发起创建VNF实例的请求；NFVO完成有效性验证后向VNFM发送创建VNF实例请求， 并将VNF包的文件位置信息传递给VNFM；VNFM下载VNF信息后进行资源验证和计算，并将计算结果返回给NFVO；NFVO根据VNFM返回的资源列表信息分配资源，并通知VNFM启动VNF；VNF启动完成，则虚拟化网络自动部署初始化流程结束，实现了VNF实例化。
虚拟化网络在运行中会进行弹性伸缩，使得网络不断发生变化；一方面，传统的发现拓扑网络的方法无法主动感知到网络节点的创建或撤销，也无法对网络节点的撤销和网络断链异常做出准确判断，需要人为干预；另一方面，EMS对拓扑网络进行管理是直接与VNF等网络节点进行交互，这样会极大地降低EMS处理的性能。
发明内容
有鉴于此，本发明实施例期望提供一种发现拓扑网络的方法、网络设备及存储介质，能够在虚拟化网络部署和运行过程中，快速、准确地发现拓扑网络。
本发明实施例的技术方案是这样实现的：
本发明实施例提供一种发现拓扑网络的方法，所述方法包括：VNFM获取自身管理的VNF的接入信息，将获取的接入信息发送至EMS。
在一实施例中，所述VNFM获取自身管理的VNF的接入信息前，所述方法还包括：VNFM接收EMS发送的接入请求，根据所述接入请求向EMS发送自身的接入信息。
在一实施例中，所述VNFM获取自身管理的VNF的接入信息，包括：VNFM向自身管理的所有VNF发送接入代理信息请求，接收VNF发送的所述VNF的接入信息。
在一实施例中，所述方法还包括：VNFM管理的VNF撤销时，VNFM向EMS发送撤销所述VNF接入的通知。
本发明实施例还提供一种发现拓扑网络的方法，包括：EMS接收VNFM 发送的VNFM管理的VNF的接入信息，根据所述接入信息将所述VNF接入到EMS拓扑管理。
在一实施例中，所述EMS接收VNFM发送的VNFM管理的VNF的接入信息前，所述方法还包括：EMS查询有VNFM时，获取所述VNFM的接入信息；根据所述VNFM的接入信息将所述VNFM接入至EMS拓扑管理。
在一实施例中，所述根据所述接入信息将所述VNF接入到EMS拓扑管理，包括：根据所述接入信息中VNF接入EMS代理请求信息文件的FTP路径，下载并解析接入EMS请求信息文件，将所述VNF接入到EMS拓扑管理。
在一实施例中，EMS将所述VNF接入到EMS拓扑管理后，所述方法还包括：EMS接收VNFM发送的撤销VNF接入的通知，根据所述通知删除所述VNF的接入。
本发明实施例还提供一种VNFM，所述VNFM包括：第一获取模块和第一发送模块；其中，
所述第一获取模块，配置为获取自身管理的VNF的接入信息；
所述第一发送模块，配置为将获取的接入信息发送至EMS。
在一实施例中，所述VNFM还包括：第一接收模块，配置为接收EMS发送的接入请求；
相应的，所述第一发送模块，配置为根据所述接入请求发送自身的接入信息。
在一实施例中，所述第一获取模块，配置为向自身管理的所有VNF发送接入代理信息请求，接收VNF发送的所述VNF的接入信息。
在一实施例中，所述第一发送模块，还配置为VNFM管理的VNF撤销时，向EMS发送撤销所述VNF接入的通知。
本发明实施例还提供一种EMS，所述EMS包括：第二接收模块和接入模块；其中，
所述第二接收模块，配置为接收VNFM发送的VNFM管理的VNF的接入信息；
所述接入模块，配置为根据所述接入信息将所述VNF接入到EMS拓扑管理。
在一实施例中，所述EMS还包括：第二获取模块，配置为查询VNFM，并获取所述VNFM的接入信息；
相应的，所述接入模块，还配置为根据所述VNFM的接入信息将所述VNFM接入至EMS拓扑管理。
接入至EMS拓扑管理。
在一实施例中，所述接入模块，配置为根据所述接入信息中VNF接入EMS代理请求信息文件的FTP路径，下载并解析接入EMS请求信息文件，将所述VNF接入到EMS拓扑管理。
在一实施例中，所述EMS还包括：删除模块，配置为在所述第二接收模块接收VNFM发送的撤销VNF接入的通知后，根据所述通知删除所述VNF的接入。
本发明实施例还提供一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，该计算机可执行指令用于执行上述发现拓扑网络的方法。
本发明实施例所提供的发现拓扑网络的方法、网络设备及计算机存储介质，VNFM获取自身管理的VNF的接入信息，将获取的所述VNF的接入信息发送至EMS；EMS根据接收的所述VNF的接入信息将所述VNF接入到EMS拓扑管理。如此，EMS通过查询VNFM主动发现VNFM的生命周期变化，减少了EMS网络拓扑的人为干预因素；由于电信网络中的VNFM 的数量远远小于VNF的数量，通过VNFM向EMS发送网络中VNF的变化，使得EMS在进行拓扑网络管理时，无需直接与VNF交互，降低了EMS直接管理VNF的负荷，有效地提高了EMS管理网络拓扑的性能。
尤其是在VNFM管理的VNF撤销时，VNFM主动通知EMS撤销所述VNF，解决了传统发现拓扑网络方法中VNF撤销后，EMS无法感知拓扑网络变化的问题，使得EMS准确的获取拓扑网络的变化，提高了EMS管理拓扑网络的准确性。
附图说明
图1为本发明实施例VNFM侧发现拓扑网络的方法的基本处理流程示意图；
图2为本发明实施例EMS侧发现拓扑网络的方法的基本处理流程示意图；
图3为本发明实施例一发现拓扑网络的方法的处理流程示意图；
图4为本发明实施例二EMS撤销VNF接入的处理流程；
图5为本发明实施例三发现拓扑网络的方法的处理流程示意图；
图6为本发明实施例VNFM的组成结构示意图；
图7为本发明实施例EMS的组成结构示意图。
具体实施方式
本发明实施例中，VNFM获取自身管理的VNF的接入信息，将获取的所述VNF的接入信息发送至EMS；EMS根据接收的所述VNF的接入信息将所述VNF接入到EMS拓扑管理。
进一步地，VNFM管理的VNF撤销时，VNFM向EMS发送撤销所述VNF接入的通知，EMS根据接收到的撤销所述VNF接入的通知删除所述VNF。
本发明实施例VNFM侧发现拓扑网络的方法的基本处理流程，如图1所示，包括以下步骤：
步骤101，VNFM获取自身管理的VNF的接入信息；
具体地，VNFM向自身管理的所有VNF发送EMS接入代理信息请求；
各个VNF根据所述EMS接入代理信息请求和VNF与VNFM之间定义的接入EMS的标准接口获取自身的接入信息，生成并存储接入EMS代理请求信息文件；
各个VNF将所述文件的文件传输协议(File Transfer Protocol，FTP)路径发送至VNFM；
VNFM根据接收的所述FTP路径获取VNF的接入信息；
其中，所述VNFM管理的VNF的数量可以为一个，也可以为多个；所述接入信息包括：接入的VNF的标识。
步骤102，VNFM将获取的接入信息发送至EMS；
具体地，VNFM将接入的VNF的标识和接入EMS代理请求信息文件的FTP路径发送至EMS。
在执行步骤101前，所述方法还包括：
VNFM接收EMS发送的接入请求，根据所述接入请求向EMS发送自身的接入信息；
所述接入信息包括：VNFM的标识、接入操作标识、VNFM的互联网协议(Internet Protocol，IP)地址和端口、VNFM的连接方式、连接用户名和连接密码等。
在执行步骤102后，所述方法还包括：
VNFM管理的VNF撤销时，VNFM向EMS发送撤销所述VNF接入的通知；
其中，所述通知包括：VNF的标识和删除操作标识。
本发明实施例EMS侧发现拓扑网络的方法的基本处理流程，如图2所示，包括以下步骤：
步骤201，EMS接收VNFM发送的VNFM管理的VNF的接入信息；
具体地，可以是EMS向VNFM发送VNF发现请求；VNFM根据所述发现请求获取自身管理的VNF的接入信息，并将所述VNF的接入信息发送至EMS；也可以是VNFM主动向EMS发送自身管理的VNF的接入信息，并将所述VNF的接入信息发送至EMS；
其中，所述VNF的接入信息为：接入的VNF的标识和接入EMS代理请求信息文件的FTP路径。
步骤202，EMS根据所述接入信息将所述VNF接入到EMS拓扑管理；
具体地，EMS根据接收的所述接入EMS代理请求信息文件的FTP路径，下载并解析所述接入EMS代理请求信息文件，将所述VNF接入到EMS拓扑管理；
其中，EMS如何解析EMS代理请求信息文件属于现有技术，这里不再赘述。
在执行步骤201前，所述方法还包括：
EMS查询有VNFM时，获取所述VNFM的接入信息；
具体地，EMS在自身管理的网络内查询VNFM，向查询到的VNFM发送接入EMS请求，接收VNFM发送的VNFM的接入信息；
根据所述VNFM的接入信息将所述VNFM接入至EMS拓扑管理。
在执行步骤202后，所述方法还包括：
EMS接收VNFM发送的撤销VNF接入的通知，根据所述通知删除所述VNF的接入；
具体地，EMS接收到VNFM发送的撤销VNF接入的通知后，根据所述通知中的VNF实例的身份标识查找接入的VNF，在EMS的拓扑管理中 删除所述VNF的接入。
实施例一
在NFVO下执行实例化操作的场景下，本发明实施例一发现拓扑网络的方法的处理流程，如图3所示，包括以下步骤：
步骤301，EMS查询有VNFM，获取所述VNFM的接入信息，根据所述VNFM的接入信息将所述VNFM接入至EMS拓扑管理；
具体地，EMS在自身管理的网络内查询VNFM，向查询到的VNFM发送接入请求；
VNFM根据所述接入请求，向EMS发送自身的接入信息；其中，所述接入信息包括：VNFM的标识、接入操作标识、VNFM的IP地址和端口、VNFM的连接方式、连接用户名和连接密码等；
EMS接收VNFM发送的VNFM的接入信息，根据所述VNFM的接入信息将所述VNFM接入至EMS拓扑管理。
步骤302，EMS向所述VNFM发送VNF发现请求。
步骤303，VNFM接收到所述发现请求后，向自身管理的所有VNF发送接入代理信息请求；
其中，所述接入代理信息请求包括：VNF的标识、接入操作标识、VNF的IP地址和端口、VNF的连接方式、连接用户名和连接密码等。
步骤304，VNF根据所述EMS接入代理信息请求和VNF与VNFM之间定义的接入EMS的标准接口获取自身的接入信息，生成并存储接入EMS代理请求信息文件，并将所述文件的FTP路径发送至VNFM。
步骤305，VNFM将获取的接入信息发送至EMS；
具体地，VNFM将接入的VNF的标识和接入EMS代理请求信息文件的FTP路径发送至EMS。
步骤306，EMS根据所述接入信息将所述VNF接入到EMS拓扑管理；
具体地，EMS根据接收的所述接入EMS代理请求信息文件的FTP路径，下载并解析所述接入EMS代理请求信息文件，将所述VNF接入到EMS拓扑管理；
其中，EMS如何解析EMS代理请求信息文件属于现有技术，这里不再赘述。
本发明实施例一中，若EMS已将VNFM接入至EMS拓扑管理，则不需要执行步骤301。
实施例二
VNF实例化完成后，VNF所属的VNFM向EMS发送自身管理的VNF的接入信息，EMS将VNF接入至EMS拓扑管理的场景下，在NFVO下终止VNF，本发明实施例二EMS撤销VNF接入的处理流程，如图4所示，包括以下步骤：
步骤401，VNFM终止VNF，向EMS发送撤销所述VNF接入的通知；
其中，所述通知包括：VNF的标识和删除操作标识。
步骤402，EMS接收VNFM发送的撤销VNF接入的通知，根据所述通知删除所述VNF的接入；
具体地，EMS接收到VNFM发送的撤销VNF接入的通知后，根据所述通知中的VNF实例的身份标识查找接入的VNF，在EMS的拓扑管理中删除所述VNF的接入。
实施例三
以VNFM已接入EMS，VNFM管理VNF1和VNF2两个VNF，VNF2的网络断开的场景为例，本发明实施例三发现拓扑网络的方法的处理流程，如图5所示，包括以下步骤：
步骤501，EMS向接入的VNFM发送VNF发现请求。
步骤502，VNFM接收到所述发现请求后，向VNF1和VNF2发送接入 代理信息请求；
其中，所述接入代理信息请求包括：VNF的标识、接入操作标识、VNF的IP地址和端口、VNF的连接方式、连接用户名和连接密码等。
步骤503，VNF1根据所述EMS接入代理信息请求和VNF与VNFM之间定义的接入EMS的标准接口获取VNF1的接入信息，生成并存储接入EMS代理请求信息文件，并将所述文件的FTP路径发送至VNFM；
由于VNF2的网络断开，VNF2无法获取VNF2的接入信息。
步骤504，VNFM将获取的VNF1的接入信息及VNFM管理的VNF数量发送至EMS；
具体地，VNFM将VNF1的标识、接入EMS代理请求信息文件的FTP路径发送至EMS、以及接入的VNF数量发送至EMS。
步骤505，EMS根据所述接入信息将所述VNF接入到EMS拓扑管理；
具体地，EMS根据接收的所述接入EMS代理请求信息文件的FTP路径，下载并解析所述接入EMS代理请求信息文件，将VNF1接入到EMS拓扑管理；
其中，EMS如何解析EMS代理请求信息文件属于现有技术，这里不再赘述；
在本步骤中，由于VNF2的接入信息查询失败，还可以根据实际需要继续执行步骤501～504。
为实现上述发现拓扑网络的方法，本发明实施例还提供一种VNFM，所述VNFM的组成结构，如图6所示，包括：第一获取模块11和第一发送模块12；其中，
所述第一获取模块11，配置为获取自身管理的VNF的接入信息；
其中，所述接入信息包括：VNFM的标识、接入操作标识、VNFM的IP地址和端口、VNFM的连接方式、连接用户名和连接密码等。
所述第一发送模块12，配置为将获取的接入信息发送至EMS。
在一实施例中，所述VNFM还包括：第一接收模块13，配置为接收EMS发送的接入请求；
相应的，所述第一发送模块12，配置为根据所述接入请求发送自身的接入信息。
在一实施例中，所述第一获取模块11，配置为向自身管理的所有VNF发送接入代理信息请求，接收VNF发送的所述VNF的接入信息。
在一实施例中，所述第一发送模块12，配置为将获取的VNF的接入信息中的接入EMS代理请求信息文件和所述文件的文件传输协议FTP路径发送至EMS。
在一实施例中，所述第一发送模块12，还配置为VNFM管理的VNF撤销时，向EMS发送撤销所述VNF接入的通知；
本发明实施例还提供一种EMS，所述EMS的组成结构如图7所示，包括：第二接收模块21和接入模块22；其中，
所述第二接收模块21，配置为接收VNFM发送的VNFM管理的VNF的接入信息；
其中，所述VNF的接入信息为：接入的VNF的标识和接入EMS代理请求信息文件的FTP路径。
所述接入模块22，配置为根据所述接入信息将所述VNF接入到EMS拓扑管理。
在一实施例中，所述EMS还包括：第二获取模块23，配置为查询VNFM，并获取所述VNFM的接入信息；
相应的，所述接入模块22，配置为根据所述VNFM的接入信息将所述VNFM接入至EMS拓扑管理。
在一实施例中，所述接入模块22，配置为根据所述接入信息中VNF接 入EMS代理请求信息文件的FTP路径，下载并解析接入EMS请求信息文件，将所述VNF接入到EMS拓扑管理。
在一实施例中，所述第二获取模块23，配置为在VNF管理的网络内查询VNFM，向查询到的VNFM发送接入EMS请求，接收VNFM发送的VNFM的接入信息。
在一实施例中，所述EMS还包括删除模块24，配置为在所述第二接收模块21接收VNFM发送的撤销VNF接入的通知后，根据所述通知删除所述VNF的接入。
本发明实施例中提出的第一获取模块11、第一发送模块12、第一接收模块13、第二接收模块21、接入模块22、第二获取模块23和删除模块24都可以通过处理器来实现，当然也可通过具体的逻辑电路实现；其中所述处理器可以是VNFM或EMS上的处理器，在实际应用中，处理器可以为中央处理器(CPU)、微处理器(MPU)、数字信号处理器(DSP)或现场可编程门阵列(FPGA)等。
本发明实施例中，如果以软件功能模块的形式实现上述发现拓扑网络的方法，并作为独立的产品销售或使用时，也可以存储在一个计算机可读取存储介质中。基于这样的理解，本发明实施例的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括若干指令用以使得一台计算机设备(可以是个人计算机、服务器、或者网络设备等)执行本发明各个实施例所述方法的全部或部分。而前述的存储介质包括：U盘、移动硬盘、只读存储器(Read Only Memory，ROM)、磁碟或者光盘等各种可以存储程序代码的介质。这样，本发明实施例不限制于任何特定的硬件和软件结合。
相应地，本发明实施例还提供一种计算机存储介质，该计算机存储介质中存储有计算机程序，该计算机程序用于执行本发明实施例的上述发现 拓扑网络的方法。
以上所述仅为本发明的较佳实施例而已，并非用于限定本发明的保护范围。

Claims (17)

  1. 一种发现拓扑网络的方法，所述方法包括：
    虚拟化网络功能管理VNFM获取自身管理的虚拟化网络功能VNF的接入信息；
    将获取的接入信息发送至网元管理系统EMS。
  2. 根据权利要求1所述发现拓扑网络的方法，其中，所述VNFM获取自身管理的VNF的接入信息前，所述方法还包括：
    VNFM接收EMS发送的接入请求；
    根据所述接入请求向EMS发送自身的接入信息。
  3. 根据权利要求1或2所述发现拓扑网络的方法，其中，所述VNFM获取自身管理的VNF的接入信息，包括：
    VNFM向自身管理的所有VNF发送接入代理信息请求，接收VNF发送的所述VNF的接入信息。
  4. 根据权利要求1所述发现拓扑网络的方法，其中，所述方法还包括：
    VNFM管理的VNF撤销时，VNFM向EMS发送撤销所述VNF接入的通知。
  5. 一种发现拓扑网络的方法，所述方法包括：
    EMS接收VNFM发送的VNFM管理的VNF的接入信息；
    根据所述接入信息将所述VNF接入到EMS拓扑管理。
  6. 根据权利要求5所述发现拓扑网络的方法，其中，所述EMS接收VNFM发送的VNFM管理的VNF的接入信息前，所述方法还包括：
    EMS查询有VNFM时，获取所述VNFM的接入信息；
    根据所述VNFM的接入信息将所述VNFM接入至EMS拓扑管理。
  7. 根据权利要求5所述发现拓扑网络的方法，其中，所述根据所述接 入信息将所述VNF接入到EMS拓扑管理，包括：
    根据所述接入信息中VNF接入EMS代理请求信息文件的FTP路径，下载并解析接入EMS请求信息文件，将所述VNF接入到EMS拓扑管理。
  8. 根据权利要求7所述发现拓扑网络的方法，其中，EMS将所述VNF接入到EMS拓扑管理后，所述方法还包括：
    EMS接收VNFM发送的撤销VNF接入的通知，根据所述通知删除所述VNF的接入。
  9. 一种虚拟化网络功能管理VNFM，所述VNFM包括：第一获取模块和第一发送模块；其中，
    所述第一获取模块，配置为获取自身管理的VNF的接入信息；
    所述第一发送模块，配置为将获取的接入信息发送至EMS。
  10. 根据权利要求9所述VNFM，其中，所述VNFM还包括：第一接收模块，配置为接收EMS发送的接入请求；
    相应的，所述第一发送模块，配置为根据所述接入请求发送自身的接入信息。
  11. 根据权利要求9所述VNFM，其中，所述第一获取模块，配置为向自身管理的所有VNF发送接入代理信息请求，接收VNF发送的所述VNF的接入信息。
  12. 根据权利要求9所述VNFM，其中，所述第一发送模块，还配置为VNFM管理的VNF撤销时，向EMS发送撤销所述VNF接入的通知。
  13. 一种网元管理系统EMS，所述EMS包括：第二接收模块和接入模块；其中，
    所述第二接收模块，配置为接收VNFM发送的VNFM管理的VNF的接入信息；
    所述接入模块，配置为根据所述接入信息将所述VNF接入到EMS拓 扑管理。
  14. 根据权利要求13所述EMS，其中，所述EMS还包括：第二获取模块，配置为查询VNFM，并获取所述VNFM的接入信息；
    相应的，所述接入模块，还配置为根据所述VNFM的接入信息将所述VNFM接入至EMS拓扑管理。
  15. 根据权利要求13所述EMS，其中，所述接入模块，配置为根据所述接入信息中VNF接入EMS代理请求信息文件的FTP路径，下载并解析接入EMS请求信息文件，将所述VNF接入到EMS拓扑管理。
  16. 根据权利要求13所述EMS，其中，所述EMS还包括：删除模块，配置为在所述第二接收模块接收VNFM发送的撤销VNF接入的通知后，根据所述通知删除所述VNF的接入。
  17. 一种计算机存储介质，所述计算机存储介质中存储有计算机可执行指令，该计算机可执行指令用于执行权利要求1至4任一项所述的发现拓扑网络的方法；和/或，
    该计算机可执行指令用于执行权利要求5至8任一项所述的发现拓扑网络的方法。
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