TW201909601A - System and method for integrating VIM and VNFM network functions capable of saving cost of indirect information transmission and effectively avoiding error state caused by information being not synchronized - Google Patents

Abstract

The present invention provides a system and method for integrating VIM (Virtualized Infrastructure Manager) and VNFM (Virtual Network Function Manager) network functions. The system provides an integrated NFV MANO (Network Function Virtualization Management and Orchestration) architecture. After the user requested the bottom-layer basic network resources or NFV services through the OSS (Operations support systems) or BSS (Business support systems) system and entered the Orchestrator, the Orchestrator may provide the installation of corresponding services and establish the basic resources and services at the VIM layer, so as to provide the VIM network resource and service installation interface module and a method using a plugin interfacing method to directly and synchronously notify the setting and installation of the bottom-layer basic network information and NFV service to the VNFM software network service common framework module. Thus, the present invention may save the cost of indirect information transmission through Orchestrator, and effectively avoid the error state that the information among modules may not be synchronized, such that the system may keep the advantages of ETSI (European Telecommunication Standards Institute) MANO standard architecture and the flexible interfacing of network function services.

Description

 System and method for integrating VIM and VNFM network functions  

The present invention relates to a system and method for integrating VIM and VNFM network functions, and provides an integrated NFV MANO (Network Function Virtualization Management and Orchestration) architecture.

At present, in the prior art, the NFV MANO framework of the ETSI (European Telecommunications Standards Institute) standard is often used to implement the cloud management system. In the process of module communication, it is always necessary to transfer the information after the completion of the installation to the Orchestrator. In order to synchronize the data to VNFM, the advantages of VIM are not used when the NFV service is installed. This not only increases the communication cost of Orchestrator, but also has the opportunity to cause the error of the information between the modules to be out of sync and the lack of flexibility in the provision of services.

In view of the above-mentioned problems of the prior art, the object of the present invention is to provide a system and method for integrating VIM and VNFM network functions, which can save the cost of indirectly transmitting information through Orchestrator, and effectively avoid information synchronization between modules. The error state allows the system to retain the benefits of the ETSI (European Telecommunication Standards Institute) MANO standard architecture and the flexibility of the management system to provide the flexibility to interface between the underlying network resources and NFV services.

The invention provides a system for integrating VIM and VNFM network functions, comprising a VNFM software network service general framework module and a VIM network resource and service supply interface module; wherein the VNFM software network service general framework The module further includes: a northbound API interface module providing a common API framework for Orchestrator and VIM layer calls, setting NFV related resource services or synchronously supplying resources and states; a southbound universal interface module, A universal interface is provided to provide the VNFM software network service universal framework module for NFV service provisioning for different VNFs; a service resource sharing module supplies the parameters of the service accepted by the northbound API interface module to cooperate with the VNFM The external device interfaced by the southbound universal interface module of the general network module of the software network service synthesizes and sets the parameters of the southbound universal interface module to unify the supply function of the service layer, and when the installation is successful, the The VNFM software network service common framework module will store the resource or service data in a data storage module to maintain the VNFM software network service common framework module and The consistency between the Orchestrator and the VIM layer; the VIM network resources and services for the interface module further includes: a network core Plugin module provides the underlying infrastructure network resources for installation; a network service Plugin The module provides function setting and configuration for processing the NFV service; and a northbound API expansion interface module receives the resource and service provisioning template sent by Orchestrator, and sends the data to the corresponding network core Plugin module. Or the network service Plugin module performs subsequent service and resource setting processing, and finally writes the installed resource and state synchronously back to a data storage module, and maintains with the VNFM software network service universal framework module. Consistency of services and resources.

The invention provides a method for integrating VIM and VNFM network functions, the steps comprising: the user logging in to the infrastructure network resource used by the OSS/BSS system, and the OSS/BSS system adds the request to the resource order and initializes the service resource entry. Orchestrator performs resource and service configuration and provisioning; Orchestrator receives the order request sent by the OSS/BSS system, and sends the service resource and user parameter to the process control module for delivery and forwarding, and then supplies the service resource. The parameter settings are set and the corresponding resource supply template is sent to the VIM network resource and service supply interface module; the resource supply model established by the Orchestrator is sent to the VIM network resource and service supply interface module. The northbound interface is a unified resource provisioning process by the cloud management system covered by the VIM network resource and service supply interface module; the VIM network resource and service supply interface module receives the resource supply model information. After that, the network core plugin module performs actual resource configuration and configuration on the underlying virtualized network resources according to different virtualization technology categories; After the actual resource configuration and configuration of the underlying virtualized network resources are completed, the information is successfully returned to the VIM network resource and service supply interface module, and the VIM network resource and service supply interface module. The group will write the data back to the data storage module of the data; when the VIM network resource and service interface module receives the information of the underlying virtualized network resources successfully completed, the network core continues. The plugin module synchronizes the state of the installed network resources to the VNFM software network service common framework module; and the VNFM software network service common framework module receives the VIM network resources and services from the north API interface module. After the module is synchronized with the installed network resource status, the information is stored in the data storage module of the VNFM software network service common framework module, and the data and VIM network resources and services are maintained. Consistency of modules such as modules and Orchestrator

The invention provides a method for integrating VIM and VNFM network functions, the steps comprising: the user logging in to the OSS/BSS system to reserve the NFV service resource, and the OSS/BSS system adds the request to the service resource order and initializes Service resources, and then bring the order to Orchestrator for service and related resource configuration; Orchestrator receives the order request sent by the OSS/BSS system, and sends the service resource and user parameters to the process control module Carry out the delivery and forwarding, and then set the service resources to the parameters of the installation and generate the corresponding service model to be sent to the VIM network resource and service supply interface module; send the service model installed by Orchestrator to the VIM network The northbound interface of the resource and service interface module is provided by the cloud management system covered by the VIM network resource and service interface module; the VIM network resource and service supply and installation After the module has processed the system service settings, the received service will be loaded with the template information, and the network service plugin module will be used for the VNFM software network service general framework. The group performs the setting and configuration of the NFV service resources; the service resource sharing module on the VNFM software network service common framework module integrates and organizes the functions and parameters of different brands, and uses different common south interface modules. The EMS (Element Management System) corresponding to the VNF of the brand carries out the NFV network service provisioning setting; the EMS module performs the NFV network service provisioning setting for the designated VNF through the API, and synchronizes the state after the installation to the VNFM software network. The general service framework module of the road service; and the universal framework module of the VNFM software network service receive the information of the NFV network service provided by the EMS, and then store the resources through the data storage module and maintain resource consistency. .

As described above, the system and method for integrating the VIM and VNFM network functions according to the present invention have the following advantages over the prior art:

1. The present invention provides a comprehensive NFV MANO (Management and Orchestration) system architecture that allows the system to retain the advantages of the ETSI MANO architecture and reduce communication costs between modules.

2. The present invention provides a method for interfacing between a VIM network resource and service provisioning interface module and a VNFM software network service common framework module, thereby effectively avoiding the need for the Orchestrator to handle the communication of each module. And the problem of passing resource parameters and so on.

3. The invention can be extended with the network function services on the VIM network resource and service supply interface module, and the interface of the system can be flexibly enhanced through the plugin, and can be matched with the VIM network resources and services. The function of the network function services on the module is used to expand the NFV service.

4. The present invention provides an elastic support Orchestrator or VIM network resource and service provisioning interface module to directly notify the VNFM software network service universal framework module to synchronize network and service resources, and provide a NFV MANO system by using the shared framework. Flexible architecture and integration.

5. The invention establishes a database module of the underlying network resources and services in the VIM network resource and service supply interface module and the VNFM software network service common framework module, so as to reflect the Orchestrator supply basic network. When the resource is changed with the NFV service, the VIM network resource and service provisioning interface module can maintain data consistency with the VNFM software network service common framework module.

11‧‧‧Users

12‧‧‧OSS/BSS system

13‧‧‧Orchestrator

14‧‧‧VNFM Software Network Service Common Framework Module

15‧‧‧VIM network resources and services supply interface module

16‧‧‧NFVI

17‧‧‧EMS

18‧‧‧VNF

141‧‧‧Northbound API interface module

142‧‧‧Service Resource Sharing Module

143‧‧‧ Data Storage Module

144‧‧‧Nanxiang Universal Interface Module

151‧‧‧Network Core Plugin Module

152‧‧‧Network Service Plugin Module

153‧‧‧Northbound API Expansion Interface Module

154‧‧‧Data storage module

S201~S207‧‧‧Step procedure

S301~S307‧‧‧Step procedure

FIG. 1 is a schematic diagram of a module flow diagram of a basic network resource for the present invention.

FIG. 2 is a schematic diagram of a module flow diagram of a NFV network service and resource according to the present invention.

FIG. 3 is a system module diagram of the integration of the VIM and VNFM network functions of the present invention.

FIG. 4 is a schematic diagram of a module flow of a packaged basic network resource according to the present invention.

FIG. 5 is a schematic diagram of a process flow of a module for supplying NFV network services and resources according to the present invention.

In order to understand the technical characteristics, content and advantages of the creation and the effects that can be achieved, the authors will use the creation of the drawings in detail with reference to the drawings, and the drawings used therein, The subject matter is only for the purpose of illustration and supplementary instructions. It is not necessarily the true proportion and precise configuration after the implementation of the original creation. Therefore, the proportions and configuration relationships of the attached drawings should not be interpreted or limited in the actual implementation scope. First described.

The object of the present invention is to provide a system and method for integrating VIM and VNFM network functions. The system design is based on the standard architecture of ETSI MANO to set up various environmental modules, and design a general framework and a plugin interface module in the module. Provide better module communication and interface methods to increase the structural flexibility and scalability of the NFV MANO system.

The invention provides a system for integrating the VIM network resource and service provisioning interface module with the VNFM software network service universal framework module network function, as shown in FIG. Including user 11, OSS/BSS system 12, Orchestrator 13, VNFM software network service universal framework module 14, VIM network resource and service supply interface module 15, NFVI16 (NFV Infrastructure), EMS17 (Element Management System ), VNF18. As shown in FIG. 3, the VNFM software network service universal framework module 14 includes a northbound API interface module 141, a service resource sharing module 142, a data storage module 143, and a southbound universal interface module 144, which are responsible for processing VNF related. Service and resource processing. The VIM network resource and service provisioning interface module 15 includes a network core Plugin module 151, a network service Plugin module 152, a northbound API expansion interface module 153, and a data storage module 154, which are responsible for different The NFV related basic resources on the virtualization platform are managed.

Refer to Figure 1 for the system architecture diagram and Figure 2 for the system module diagram. The VIM network resource and service provisioning interface module 15 uses the OpenStack open source project as the cloud management system, and the network core Plugin module 151 on the OpenStack uses the core plugin of the network Neutron module of OpenStack and expands and interfaces. The VNFM software network service general framework module 14 and the network service module 152 use the service plugin of the OpenStack Neutron module and expand and interface with the VNFM software network service universal framework module 14. The northbound API expansion interface module 153 expands Neutron's resful API to interface with the network core Plugin module 151 and network service module 152 that are extended by the system. And with NFVI16 with different hypervisors, for example, including VMware vSphere / NSX, KVM, Xen / XenServer and other different virtualization underlying technologies. The data storage module 154 is a database for storing the supply and service resources on the VIM.

The present invention proposes a method for integrating VIM and VNFM network functions, as shown in FIG. 1, FIG. 2, and FIG. 4 and FIG. Figure 1 shows the module flow diagram for the basic network resources. The detailed steps are shown in Figure 4. The user 11 requests to establish an infrastructure network resource request through the cloud OSS/BSS system 12, and takes the data to the Orchestrator 13 after the system initializes the service. Orchestrator13 will request the input resource parameters to generate a resource or service template, generate the order and related number, and then enter the process control process. Then, the model of the supply resource is brought to the VIM network resource and service supply interface module 15, and the VIM network resource and service supply interface module 15 further requests the corresponding underlying virtualized network resource to the NFVI16. Configuration settings and supply processing. Synchronize the installed resources and service status reports to the VIM network resource and service provisioning interface module 15 and the VNFM software network service universal framework module 14, and finally step 207 by the VNFM software network service universal framework module After receiving the information that the VIM network resource and the service are installed in the interface module 15, the resource is stored and the resource consistency is maintained. The method has the advantages that the communication cost of the VNFM software network general framework module 14 can be reduced after the VIM network resource and the service interface module 15 are synchronized back to the Orchestrator 13 and the information is asynchronous. Happening.

Referring again to FIG. 4, a block diagram of a module for installing basic network resources is as follows: Step S201: The user enters the system through the OSS/BSS to perform basic network resource subscription, such as Network, Subnet, Port, etc. Road resource demand application. After the service parameters are initialized, the relevant order records are generated and then the supply resources and parameters are sent to the Orchestrator; step S202: Orchestrator receives the order request sent by the OSS/BSS system, and sends the service resources and user parameters therein. The process control module performs the delivery and forwarding, and then sets the service resources for the installation parameters and generates the corresponding resource supply model, such as the open source standard service model such as TOSCA/Heat templates, and sends it to the OpenStack open source in VIM (OpenStack). Install the Heat module; Step S203: The resource set up by the Orchestrator is sent to the VIM network resource and service for the interface module OpenStack open source for the Heat module, and then forward the call to the VIM network resource and service for loading The Neutron module of the interface module is configured by the network core Plugin module for network resource processing; step S204: the network core Plugin module of the VIM layer is configured to request the corresponding underlying virtualized network resource to the NFVI network. The configuration of the road resource is set; step S205: the NFVI completes the configuration setting and returns to the VIM network resource and service supply interface module; step S206: VIM network The source and service supply interface module then synchronizes the configuration result and state of the network resource with the VNFM software network common interface module north to the API interface module to the VNFM software network service general framework module; S207: The VNFM software network service universal framework module receives the information synchronized between the VIM network resource and the service interface module, and uses the data storage module to store resources and maintain resource consistency.

Figure 2 shows the module flow diagram for NFV network services and resources. The detailed steps are shown in Figure 5. The user requests to establish an NFV service request through the cloud OSS/BSS system 12, and the system initializes the service and then takes the data to the Orchestrator 13. The Orchestrator 13 receives the order request sent by the cloud OSS/BSS system 12, and delivers the service resource and the user parameter to the process control module for distribution, and then sets the service resource for the parameter setting and generates a corresponding The service provisioning template is sent to the VIM network resource and service supply interface module 15. The NFV service supply resource is sent to the VIM network resource and service installation interface module 15 for service setting, and the VIM network resource is connected to the network service Plugin module 152 in the service installation interface module 15. The VNFM software network service universal framework module 14 synchronizes the provisioning resources to the VNFM software network service universal framework module 14 for service provisioning. The VNFM software network service general framework module 14 is notified, and the ENF 17 configures and supplies the NFV service to the VNF 18 on the VNF 18 to complete the service request of the user. The resource status synchronized by the EMS 17 is stored in the data storage module 143 on the VNFM software network service general framework module 14. The advantage of this method is that the VIM network resource and service provisioning interface module 15 can be flexibly interfaced with the VNFM software network service universal framework module 14 in a plugin manner, so that the VIM network resources and services are provided. The service provisioning logic of the module 15 can effectively cooperate with the VNF18 service provisioning process on the VNFM software network service general framework module 14 to achieve a more flexible supply and can be applied to a shared framework.

Referring to FIG. 5, a flow chart of a module for installing NFV network services and resources is as follows: Step S301: The user enters the system through the OSS/BSS to perform NFV network service and related resource subscription, such as VPC (Virtual Private Cloud), Firewall, SLB and other network service and resource requirements application. After the service parameters are initialized, the relevant order records are generated and the supply resources and parameters are sent to Orchestrator. Step S302: Orchestrator receives the OSS/BSS system. The order request, and the process control module sent to the service parameter and the user parameter is delivered and forwarded, and then the service resource is set for the supply parameter and the corresponding service supply template is generated, such as TOSCA/Heat templates. OpenStack open source for the VIM network resource and service interface (OpenStack) for the Heat module; Step S303: Orchestrator established resource for the model to be sent to the VIM layer OpenStack open source for the Heat module, then forwarded The Neutron module for calling the VIM network resource and service interface module is provided by the network service module for the NFV network service resource; step S304: Neutron mode The group network service module will first set the NFV internal network service corresponding to OpenStack, and then call the VNFM software network service general framework module through the plugin mechanism; step S305: VNFM software network service universal framework module The service resource sharing module integrates and organizes the functions and parameters of different VNF labels, and provides NFV network service for EMS (Element Management System) corresponding to different brands VNF through the common south interface module. Setting; step S306: the EMS module performs NFV service provisioning setting on the designated VNF through the API; and step S307: the EMS module synchronizes the state after the installation to the VNFM software network service common frame module, and then passes through the The data storage module records the network service resources and maintains the consistency of resources.

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of the invention are intended to be included in the scope of the appended claims.

Claims (2)

 A system for integrating VIM and VNFM network functions includes a VNFM software network service common framework module and a VIM network resource and service supply interface module; wherein the VNFM software network service general framework module, Furthermore, a northbound API interface module provides a common API framework for Orchestrator and VIM layer calls, setting NFV related resource services or synchronously supplying resources and status; a southbound universal interface module with universal The interface provides the VNFM software network service universal framework module for NFV service provisioning for different VNFs; a service resource sharing module supplies the parameters of the service accepted by the north API interface module to cooperate with the VNFM software network The external device interfaced by the southbound universal interface module of the service universal framework module synthesizes and sets the parameters of the southbound universal interface module to unify the supply function of the service layer. When the installation is successful, the VNFM software network The Universal Service Framework module stores the resources or service provisioning data into a data storage module to maintain the VNFM software network service common framework module and Orchestrator. The consistency of the VIM layer and other data; wherein the VIM network resource and service supply interface module further includes: a network core Plugin module provides the underlying infrastructure network resources for installation; and a network service Plugin module Providing function setting and configuration for processing the NFV service; and a northbound API expansion interface module receiving the resource and service provisioning template sent by the Orchestrator, and sending the data to the corresponding network core Plugin module or the The network service Plugin module performs subsequent service and resource setting processing, and finally writes the backed up resources and status back to a data storage module, and maintains service with the VNFM software network service common framework module. Consistency of resources.    A method for integrating VIM and VNFM network functions includes the steps of: the user logs in to the infrastructure network resource used by the OSS/BSS system, and the OSS/BSS system adds the request to the resource order and initializes the service resource to enter the Orchestrator for resources. And service configuration and supply; Orchestrator receives the order request sent by the OSS/BSS system, and sends the service resource and user parameters to the process control module for delivery and forwarding, and then sets the service resource for the parameter setting. And generating a corresponding resource for the model to be sent to the VIM network resource and service supply interface module; the resource supply model established by the Orchestrator is sent to the northbound interface of the VIM network resource and service supply interface module. The cloud management system covered by the VIM network resource and service supply interface module performs unified resource provisioning processing; after the VIM network resource and service installation interface module receives the resource supply model information, The network core plugin module performs actual resource configuration and configuration on the underlying virtualized network resources according to different virtualization technology categories; when the supply template information is bottomed The virtualized network resources are configured to complete the actual resource configuration and configuration, and the information is successfully returned to the VIM network resource and service supply interface module. The VIM network resource and service supply interface module will The data is written back to the data storage module of the data; when the VIM network resource and service interface module receives the information of the underlying virtualized network resources and successfully completes the installation, the network core plugin module continues. Synchronize the state of the installed network resources to the VNFM software network service common framework module; and the VNFM software network service common framework module receives the VIM network resources and services from the northbound API interface module. After synchronizing the state of the network resources after the installation, the information is stored in the data storage module of the VNFM software network service common framework module, and the data and VIM network resources and service supply interface modules are maintained. Consistency of modules such as Orchestrator A method of integrating VIM and VNFM network functions, the steps include: the user logs in to the OSS/BSS system to reserve the NFV service resources, and the OSS/BSS system adds the request to The service resource is initialized in the resource order, and then the order is brought to Orchestrator for service and related resource configuration; Orchestrator receives the order request sent by the OSS/BSS system, and sends the service resource and user parameters to The process control module in the process performs the delivery and forwarding, and then sets the service resource for the parameter setting and generates the corresponding service model to be sent to the VIM network resource and service supply interface module; the service established by the Orchestrator is installed. The model is sent to the northbound interface of the VIM network resources and services for the interface module. The VIM network resources and services provide a unified resource for the cloud management system covered by the interface module; VIM network After the resource and service installation interface module processes the system service settings, the received service is provided with the template information, and the NFV service resource is set by the network service plugin module to the VNFM software network service common framework module. And configuration; the service resource sharing module on the VNFM software network service common framework module integrates and organizes the functions and parameters of different brands. The southbound interface module uses NFV network service provisioning for EMS (Element Management System) corresponding to different brand VNFs; the EMS module performs NFV network service provisioning for the designated VNF through the API, and will provide The state of the device is synchronized back to the VNFM software network service common framework module; and the VNFM software network service universal framework module receives the information of the NFV network service provided by the EMS, and then stores the data through the data storage module. And maintain resource consistency.