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Network Function Virtualisation – 
Management and Orchestration (MANO) 
Neelima Sharma
The content of this presentation is taken from the ETSI NFV specifications and 
from various presentations available on in...
NFV Specifications – Reference 
• NFV-MAN001v061- management and orchestration
What is covered… 
• Why and What MANO ? 
• MANO architecture framework 
• Functional Blocks 
• Reference Points 
• Interfa...
MANO – Why ? 
• Required for provisioning of the virtualized network function 
• For performing operations like configurat...
MANO – What ? 
• MANO is a functional block in NFV architecture framework which stands for 
Management and Orchestration. ...
MANO – What ? 
Orchestrator 
Or-Vnfm 
VNF 
Manager(s) 
Vi-Vnfm 
Virtualised 
Infrastructure 
Manager(s) 
Or-Vi
Challenges – MANO 
• Standardized way of management of the end to end services across a 
mixture of NFV functions, infrast...
Virtualised Infrastructure Manager 
Services exposing virtualized resources include : 
• Discovery of the available resour...
VNF Manager - FCAPS 
This includes following services: 
• Fault management 
• Configuration management 
• Accounting manag...
VNF Manager – VNF lifecycle management 
Definition : 
VNF management function performs the lifecycle management of a VNF b...
VNF Manager – Deployment Template 
Definition : 
Deployment and operational behavior requirements of each VNF is captured ...
Network Service – Orchestration 
Network service lifecycle management includes operations like : 
• On-board network servi...
Other MANO Aspects 
Fault and Performance management 
Distributed over different functional blocks that are dedicated amon...
Other MANO Aspects 
Policy management : 
• Management of the rules governing the behavior of the NFV-MANO functions. 
• De...
NFV MANO and OSS/BSS - Integration 
OSS/BSS includes collection of systems and management applications that service 
provi...
Administrative Domains 
Definitions : 
Administrative Domains can be mapped to different organizations and therefore 
can ...
NFV MANO – Framework Scope 
Scope of the architecture framework 
• Functional blocks identified as belonging to NFV Manage...
NFV MANO – Framework
Functional Block – NFV Orchestrator 
• Orchestration of NFVI resources across multiple VIM 
• Lifecycle management of netw...
Functional Block – NFV Orchestrator 
Resource Orchestrator 
• Validation and authorization of NFVI resource requests from ...
Functional Block – VNF Manager 
• VNF instantiation, including VNF configuration if required by the VNF 
deployment templa...
Functional Block – VNF Manager 
• Correlation to VNF instance-related events/faults 
• VNF instance assisted or automated ...
Functional Block – Virtualised Infrastructure Manager 
• Resource catalogue management 
• Orchestrating the allocation/upg...
Functional Block – Others 
• NS Catalogue 
• Repository for all of the on-boarded NS 
• Creation and management of the NS ...
Functional Block – Others 
• Element Management System 
• configuration for the network functions provided by the VNF 
• f...
NFV MANO – Descriptor Files
NFV MANO – Descriptor 
• Network Service Descriptor ( NSD ) 
• Deployment template for NS referencing other descriptors wh...
NFV MANO – Descriptor 
• Virtual Network Function Forwarding Graph Descriptor (VNFFGD) 
• Deployment template which descri...
NFV MANO – Reference Points 
• Os-NFVO : For exchanges between OSS/BSS and NFVO 
• Network Service Descriptor and VNF pack...
NFV MANO – Reference Points 
• VeEn-Vnfm : For exchange between EM and VNF Manager 
• VNF instantiation 
• VNF instance qu...
NFV MANO – Reference Points 
• VeNf-Vnfm : For exchange between VNF and VNF Manager 
• VNF instantiation 
• VNF instance q...
NFV MANO – Reference Points 
• Nf-Vi : For exchange between VIM and NFVI 
• Allocate VM with indication of compute/storage...
NFV MANO – Reference Points 
• Nfvo-Vnfm : For exchange between NFVO and VNF Manager 
• NFVI resources authorization/valid...
NFV MANO – Reference Points 
• Nfvo-Vi : For exchange between NFVO and VIM 
• NFVI resource reservation/release 
• NFVI re...
NFV MANO – Information Elements 
• Information elements contains the structured information of : 
• Information that resid...
NFV MANO – Information Elements 
• Five other information elements are : 
• Network Service information element 
• VNF inf...
NFV MANO – Information Elements
NFV MANO – Interfaces 
▐ Interfaces are defined focusing on the function they expose. 
• There is a mapping of interface t...
NFV MANO – Interfaces Related to Network Services 
Interface Name Description Producer Consum 
ed 
Operations Referen 
ce ...
NFV MANO – Interfaces Related to Network Services 
Interface Name Description Producer Consum 
ed 
Operations Referen 
ce ...
NFV MANO – Interfaces Related to VNF 
Interface Name Description Producer Consum 
ed 
Operations Referen 
ce 
Points 
VNF ...
NFV MANO – Interfaces Related to VNF 
Interface Name Description Producer Consum 
ed 
Operations Referen 
ce 
Points 
VNF ...
NFV MANO – Interfaces Related to VNF 
Interface Name Description Producer Consum 
ed 
Operations Referen 
ce 
Points 
VNF ...
NFV MANO – Interfaces Related to Virtualised Resources 
Interface Name Description Producer Consum 
ed 
Operations Referen...
NFV MANO – Interfaces Related to Policy Administration 
Interface Name Description Producer Consum 
ed 
Operations Referen...
NFV MANO – Interfaces Related to Network Forwarding 
Path 
Interface Name Description Producer Consum 
ed 
Operations Refe...
NFV MANO – Interfaces Related to NFVI Hypervisor 
management 
Interface Name Description Producer Consum 
ed 
Operations R...
NFV MANO – Interfaces Related to NFVI Hypervisor 
management 
Interface Name Description Producer Consum 
ed 
Operations R...
NFV MANO – Interfaces Related to NFVI network 
management 
Interface Name Description Producer Consum 
ed 
Operations Refe...
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NFV management and orchestration framework architecture

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This presentation details about the architecture framework for management and orchestration of NFV framework

Published in: Engineering

NFV management and orchestration framework architecture

  1. 1. Network Function Virtualisation – Management and Orchestration (MANO) Neelima Sharma
  2. 2. The content of this presentation is taken from the ETSI NFV specifications and from various presentations available on internet
  3. 3. NFV Specifications – Reference • NFV-MAN001v061- management and orchestration
  4. 4. What is covered… • Why and What MANO ? • MANO architecture framework • Functional Blocks • Reference Points • Interfaces • Information Element
  5. 5. MANO – Why ? • Required for provisioning of the virtualized network function • For performing operations like configuration, management of the VNF’s and the infrastructure these functions run on. • Manage the NFVI and orchestrate the allocation of the resources needed by the VNF’s and the NS (Network Services)
  6. 6. MANO – What ? • MANO is a functional block in NFV architecture framework which stands for Management and Orchestration. • This block consist of the three main functional components which performs the necessary functions • Virtualised Network Function Manager • Orchestrator • Virtualised Infrastucture Manager • It should handle the MANO of the NFVI resources in single NFVI-PoP or when distributed across multiple NFVI-PoP’s • Virtualised resources to be managed are : • Compute : Machines which has both CPU and Memory • Storage : Volumes of storage at either block or file system level • Networks : subnets, networks, ports, links and forwarding rules, connectivity between inter and intra VNF
  7. 7. MANO – What ? Orchestrator Or-Vnfm VNF Manager(s) Vi-Vnfm Virtualised Infrastructure Manager(s) Or-Vi
  8. 8. Challenges – MANO • Standardized way of management of the end to end services across a mixture of NFV functions, infrastructure and legacy interconnected network systems in a highly dynamic NFV environment. • Automation is another challenge. Operators need to speed up the ability to dynamically incorporate change. • Flexible and dynamic policy based management • Support of processing of huge amount of data, data analytics in real time • Launching new services is difficult and takes too long • Manual effort at various levels and locations for management of the networks and operations
  9. 9. Virtualised Infrastructure Manager Services exposing virtualized resources include : • Discovery of the available resources • Management of the virtualized resources availability/allocation/release • Virtualised resource fault and performance management
  10. 10. VNF Manager - FCAPS This includes following services: • Fault management • Configuration management • Accounting management • Performance management • Security management • Creation and lifecycle management of the needed virtualized resources for the VNF referred as VNF management
  11. 11. VNF Manager – VNF lifecycle management Definition : VNF management function performs the lifecycle management of a VNF based on the requirements defined in the template. VNF Management includes following functions • Instantiate VNF ( create a VNF using the VNF on-boarding artefacts) • Scale VNF (increases or reduce the capacity of the VNF) • Update and/or upgrade VNF • Terminate VNF
  12. 12. VNF Manager – Deployment Template Definition : Deployment and operational behavior requirements of each VNF is captured in a deployment template and stored during the VNF on-boarding process in a catalogue. • KPI definition • Helps in the defining the scaling operations ( like scale up, scale down, adding new virtualized resources, shutting down and removing VM instances or releasing some virtualized resources.) • Resources allocation criteria definition on VNF instantiation • Requirement defined in the template along with the specific requirements, constraints and policies. • Fully describes the attributes and requirements necessary to realize the network service
  13. 13. Network Service – Orchestration Network service lifecycle management includes operations like : • On-board network service • Register network service in the catalogue • Ensure that all the templates describing the NS are on-boarded • Instantiate network service • Create a network service using the NS on-boarding artefacts • Scale network service • Grow or reduce the capacity of the network service • Update network services by supporting network service configuration changes of various complexity • Create, delete, query and update of VNFFG’s associated to a Network Service • Terminate Network services
  14. 14. Other MANO Aspects Fault and Performance management Distributed over different functional blocks that are dedicated among others : • Fault and performance metrics collection • Metrics calculation and aggregation • Fault correlation • Fault resolution • Fault notifications may be the result of the following faults : • Physical infrastructure related ( compute, storage and networking) • Virtualized infrastructure ( VM-related faults) • Application logic ( VNF instance related faults)
  15. 15. Other MANO Aspects Policy management : • Management of the rules governing the behavior of the NFV-MANO functions. • Defined with conditions and corresponding actions • Policy may be bound to one or more NS instances, VNF instances and NFVI resources • Support for execution of the policy both automatically and manually
  16. 16. NFV MANO and OSS/BSS - Integration OSS/BSS includes collection of systems and management applications that service providers use to operate their business. OSS and MANO integrations should include : • Open and consistent interfaces for • Automation, self-service operations at service and product level • Adaptive automation • Service usage drives on-demand resource requirements • Triggering feedback to mgmt. functions analyze and make changes to. • Orchestration • Policies can guide the decisions required to change all or part of the system to perform a given function • Personalized services that are easily configured by the operator or end-user at the service or network resource layer • Technology driven innovation
  17. 17. Administrative Domains Definitions : Administrative Domains can be mapped to different organizations and therefore can exist within a single service provider or distributed among several service providers. Types of Domains : • Infrastructure Domain : • Defined by different criteria (e.g., by organization, by type of resource such as networking, compute and storage as in traditional datacenter environments, by geographical location, etc.), • Tenant Domain • Defined by different criteria (e.g., organization, by type of Network Service, etc.), and multiple Tenant Domains may co-exist. • Exist in a infrastructure domain • VNF and NS resides
  18. 18. NFV MANO – Framework Scope Scope of the architecture framework • Functional blocks identified as belonging to NFV Management and Orchestration (NFV-MANO). • Other functional blocks that interact with NFV-MANO via reference points. • All reference points that enable communications to, from, and within NFV-MANO.
  19. 19. NFV MANO – Framework
  20. 20. Functional Block – NFV Orchestrator • Orchestration of NFVI resources across multiple VIM • Lifecycle management of network services • Use network service orchestration to coordinate groups of VNF instances as Network Services • Management of NS deployment templates and VNF packages • Management of the instantiation of VNF managers • Management of the instantiation of VNF’s • Validation and authorization of NFVI resource request from VNF managers • Management of the integrity and visibility of the NS instances • Management of NS instances topology • NS instance automation management • Policy management and evaluation for the NS and VNF instances
  21. 21. Functional Block – NFV Orchestrator Resource Orchestrator • Validation and authorization of NFVI resource requests from VNF Manager(s) • NFVI resource management across operator’s Infrastructure Domains including the distribution, reservation and allocation • Supporting the management of the relationship between the VNF instances and the NFVI resources allocated • Policy management and enforcement for the Network Service instances and VNF instances • Collect usage information of NFVI resources by VNF instances or groups of VNF instances
  22. 22. Functional Block – VNF Manager • VNF instantiation, including VNF configuration if required by the VNF deployment template (e.g., VNF initial • Configuration with IP addresses before completion of the VNF instantiation operation) • VNF instantiation feasibility checking, if required • VNF instance software update/upgrade • VNF instance modification • VNF instance scaling out/in and up/down • VNF instance-related collection of NFVI performance measurements and faults/events information, and correlation
  23. 23. Functional Block – VNF Manager • Correlation to VNF instance-related events/faults • VNF instance assisted or automated healing • VNF instance termination • VNF lifecycle management change notifications • Management of the integrity of the VNF instance through its lifecycle • Overall coordination and adaptation role for configuration and event reporting between the VIM and the
  24. 24. Functional Block – Virtualised Infrastructure Manager • Resource catalogue management • Orchestrating the allocation/upgrade/release/reclamation of NFVI resources • Supporting the management of VNF Forwarding Graphs • Management of the NFVI capacity/inventory of virtualised hardware resources (compute, storage, networking) and software resources (e.g., hypervisors) • Management of software images (add, delete, update, query, copy) as requested by other NFV-MANO functional blocks (e.g., NFVO). • Collection and forwarding of performance measurements and faults/events information relative to virtualized resources • Management of catalogues of virtualised resources that can be consumed from the NFVI
  25. 25. Functional Block – Others • NS Catalogue • Repository for all of the on-boarded NS • Creation and management of the NS deployment templates (NSD, VLD, VNFFGD) • VNF Catalogue • Repository for all of the on-boarded VNF’s • Creation and management of the VNF package ( VNFD) • NFV Instance Repository • Holds information about all VNF and NF instances as VNF record and NS record • NFVI Resource Repository
  26. 26. Functional Block – Others • Element Management System • configuration for the network functions provided by the VNF • fault management for the network functions provided by the VNF • accounting for the usage of VNF functions • performance measurements for the functions provided by the VNF • security management for the VNF functions Repository for all of the on-boarded NS • OSS/BSS • May provide management and orchestration of legacy system
  27. 27. NFV MANO – Descriptor Files
  28. 28. NFV MANO – Descriptor • Network Service Descriptor ( NSD ) • Deployment template for NS referencing other descriptors which describes about components of NS • Used by NFVO to instantiate NS (VNF,VNFFG, • Virtual Network Function Descriptor (VNFD) • Deployment template for VNF in terms of deployment and operational behavior requirement • Used by VNFM to process VNF instantiation and lifecycle management • Used by NFVO to manage and orchestrate NS and virtual resource on the NFVI • Contains information like connectivity, interface and KPI requirements • Virtual Link Descriptor (VLD) • Deployment template which describes resource requirement needed for links between VNF’s, PNF’s and endpoint of NS.
  29. 29. NFV MANO – Descriptor • Virtual Network Function Forwarding Graph Descriptor (VNFFGD) • Deployment template which describes a topology of the NS • Physical Network Function Descriptor (PNFD) • Deployment template which describes connectivity, KPI and interface requirements of VL to an attached physical network function
  30. 30. NFV MANO – Reference Points • Os-NFVO : For exchanges between OSS/BSS and NFVO • Network Service Descriptor and VNF package management • Network Service instance lifecycle management: • Network Service instantiation • Network Service instance update (e.g., update a VNF instance that is comprised in the Network Service • Network Service instance query (e.g., retrieving summarized information about NFVI resources associated to • Network Service instance scaling • Network Service instance termination • VNF Lifecycle Management • policy management and/or enforcement for Network Service instances, VNF instances and NFVI resources • querying relevant Network Service instance and VNF instance information from the OSS/BSS • forwarding of events, accounting and usage records and performance measurements
  31. 31. NFV MANO – Reference Points • VeEn-Vnfm : For exchange between EM and VNF Manager • VNF instantiation • VNF instance query (e.g., retrieve any run-time information) • VNF instance update (e.g., update configuration) • VNF instance scaling out/in, and up/down • VNF instance termination • Forwarding of configuration and events from the EM to the VNFM • Forwarding of configuration and events regarding the VNF from the VNFM to the EM
  32. 32. NFV MANO – Reference Points • VeNf-Vnfm : For exchange between VNF and VNF Manager • VNF instantiation • VNF instance query (e.g., retrieve any run-time information) • VNF instance update (e.g., update configuration) • VNF instance scaling out/in, and up/down • VNF instance termination • Forwarding of configuration and events from the VNF to the VNFM • Forwarding of configuration, events, etc. regarding VNF, from the VNFM to the VNF • Verification that the VNF is still alive/functional
  33. 33. NFV MANO – Reference Points • Nf-Vi : For exchange between VIM and NFVI • Allocate VM with indication of compute/storage resource • Update VM resources allocation • Migrate VM • Terminate VM • Create connection between VMs • Configure connection between VM • Remove connection between VMS • forwarding of configuration information, failure events, measurements, and usage records regarding NFVI to the VIM
  34. 34. NFV MANO – Reference Points • Nfvo-Vnfm : For exchange between NFVO and VNF Manager • NFVI resources authorization/validation/reservation/release for a VNF • NFVI resources allocation/release request for a VNF • VNF instantiation • VNF instance query (e.g., retrieve any run-time information) • VNF instance update (e.g., update configuration) • VNF instance scaling out/in, and up/down • VNF instance termination • VNF package query • Forwarding of events, other state information about the VNF that may impact also the Network Service Instance
  35. 35. NFV MANO – Reference Points • Nfvo-Vi : For exchange between NFVO and VIM • NFVI resource reservation/release • NFVI resource allocation/release/update • VNF software image addition/deletion/update • Forwarding of configuration information, events, measurements, usage records • Vi-Vnfm : For exchange between VNF Manager and VIM • NFVI resource réservation information retrieval • NFVI resource allocation/release • Exchanges of configuration information between reference point peers, and forwarding to the VNF Manager
  36. 36. NFV MANO – Information Elements • Information elements contains the structured information of : • Information that resides in the descriptors • Information that resides in records • Information that may be passed between functional blocks • Information elements are categorized as : • Leaf • Single information element • Data type of the value is independent on the information • Reference Elements • It is an information element that carries a reference to another information element • It may be represented by an URI • Sub Elements • an information element itself that specifies another level in the tree
  37. 37. NFV MANO – Information Elements • Five other information elements are : • Network Service information element • VNF information element • PNF information element • Virtual link (VL) information element • VNFG information element • Instantiation inputs are available in the descriptor or templates defined • After the instantiation the operation records are created which model the state • Network Service Record • Virtual Network Function Record • Virtual Link Record • VNF forwarding graph (VNFFG) record
  38. 38. NFV MANO – Information Elements
  39. 39. NFV MANO – Interfaces ▐ Interfaces are defined focusing on the function they expose. • There is a mapping of interface to the reference points
  40. 40. NFV MANO – Interfaces Related to Network Services Interface Name Description Producer Consum ed Operations Referen ce Points Network Service Descriptor Management allows an authorized consumer functional block to manage the Network Service Descriptor (NSD), including any related VNFFGD and VLD. NFVO OSS On-board, Disable,Enable,Query,Upd ate,Delete Os- NFVO Network Service Lifecycle Management allows an authorized consumer functional block to perform lifecycle operations on Network Service instances NFVO OSS Instantiate, Terminate,Query, Scale,Update VNFFG- Create, delete, query, update VL – Create, delete, Update,query Os- NFVO Network Service lifecycle change notifications Provide run time notification related to changes made to NS instances NFVO OSS Notify Os- NFVO
  41. 41. NFV MANO – Interfaces Related to Network Services Interface Name Description Producer Consum ed Operations Referen ce Points Network Service Performance Management allows performance management (metrics collection and notifications) on Network Services. NFVO OSS Get performance metrics, Notify Os- NFVO Network Service Fault Management To provide fault information on Network Services NFVO OSS Notify, Get NS fault information Os- NFVO
  42. 42. NFV MANO – Interfaces Related to VNF Interface Name Description Producer Consum ed Operations Referen ce Points VNF Package Management Allows an authorized consumer functional block to manage the VNF package NFVO OSS, VNFM On-board, Disable,Enable,Query,Upd ate,Delete Os- NFVO Nfvo- Vnfm VNF Software image management allows an authorized consumer functional block to manage the VNF software images in VIM. VIM VIM NFVO NFVO VNFM OSS Add, Delete, Update, Query, Copy, Nfvo-Vi Vnfm- Vi Os- Nfvo VNF lifecycle operation granting allows an authorized consumer functional block to request a producer functional block permission and relevant information for performing certain VNF lifecycle operations NFVO VNFM Grant lifecycle operation Nfvo- Vnfm
  43. 43. NFV MANO – Interfaces Related to VNF Interface Name Description Producer Consum ed Operations Referen ce Points VNF Lifecycle Management allows an authorized consumer functional block to perform lifecycle operations on VNF(s) VNFM NFVO VNFM NFVO OSS EM Notify Nfvo- Vnfm Os- Nfvo VeEn- Vnfm VNF Configuration Allows configuration of VNF after successful instantiation VNF VNF VNFM EM Get, Create, Delete, Set, Notify config changes VeNf- Vnfm VNF Performance Management to provide runtime notifications related to the state of the VNF instance VNF VNFM VNF VNFM NFVO EM Get performance metrics, Notify VeNf- Vnfm Nfvo- Vnfm
  44. 44. NFV MANO – Interfaces Related to VNF Interface Name Description Producer Consum ed Operations Referen ce Points VNF Fault Management allows providing VNF application-layer fault information VNF VNFM VNF VNFM NFVO EM Get fault information, Notify VeNf- Vnfm Nfvo- Vnfm
  45. 45. NFV MANO – Interfaces Related to Virtualised Resources Interface Name Description Producer Consum ed Operations Referen ce Points Virtualised Resources Catalogue Management allows an authorized consumer functional block to query the catalogues of virtualised resources and get notifications about their changes. VIM VIM NFVO VNFM Notify resource catalogue changes, Query resource catalogue Nfvo-Vi Vi- Vnfm Virtualised resource capacity management allows an authorized consumer functional block to perform operations related to NFVI-PoP capacity and usage reporting VIM NFVO Query resource capacity, Notify resource capacity changes Nfvo-Vi Virtualised resources management allows an authorized consumer functional block to perform operations on virtualised resources available to the consumer functional block. VIM VIM NFVO NFVO VNFM VNFM Allocate, Query, Update, Scale, Migrate, Operate, Release resource Query, Update, create, Release resource reservation Nfvo-Vi Vi- Vnfm Nfvo- Vnfm
  46. 46. NFV MANO – Interfaces Related to Policy Administration Interface Name Description Producer Consum ed Operations Referen ce Points Policy Management allows an authorized consumer functional block to manage NFV policies NFVO VNFM VIM OSS NFVO NFVO Create, update, delete, query, Activate, De-activate Policy Os- Nfvo Nfvo- Vnfm Nfvo-Vi
  47. 47. NFV MANO – Interfaces Related to Network Forwarding Path Interface Name Description Producer Consum ed Operations Referen ce Points Network Forwarding Path Management allows an authorized consumer functional block to perform Network Forwarding Path management and notification operations. VIM NFVO Create, Update, Delete, Query Network Forwarding path, Notify Nfvo-Vi
  48. 48. NFV MANO – Interfaces Related to NFVI Hypervisor management Interface Name Description Producer Consum ed Operations Referen ce Points NVFI Hypervisor Management allows an authorized consumer functional block to request a producer functional block to perform operations on hypervisor-accessed resources (e.g. compute, storage and networking) in the NFVI NFVI VIM Create, Shutdown, Destroy, update, list virtual machines Query a virtual machine by id Reboot, suspend, Resume, Save, Restore virtual machine Create,Modify,list,delete,Q uery storage pool, All the operations supported in the hypervisor Nf-Vi
  49. 49. NFV MANO – Interfaces Related to NFVI Hypervisor management Interface Name Description Producer Consum ed Operations Referen ce Points NVFI Hypervisor Management allows an authorized consumer functional block to request a producer functional block to perform operations on hypervisor-accessed resources (e.g. compute, storage and networking) in the NFVI NFVI VIM Create, Shutdown, Destroy, update, list virtual machines Query a virtual machine by id Reboot, suspend, Resume, Save, Restore virtual machine Create,Modify,list,delete,Q uery storage pool, All the operations supported in the hypervisor Nf-Vi
  50. 50. NFV MANO – Interfaces Related to NFVI network management Interface Name Description Producer Consum ed Operations Referen ce Points NVFI Network Management allows an authorized consumer functional block to request a producer functional block to perform management operations on networking resources in NFVI NFVI VIM Create, delete, update virtual network List, query virtual networks Create, delete, update,query,list subnets Create, delete, update,query,list ports Notify Nf-Vi

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