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GROUP REPORT
Network Functions Virtualisation (NFV) Release 3;
Management and Orchestration;
Report on Os-Ma-Nfvo reference point - application and
service management use cases and recommendations
Disclaimer
The present document has been produced and approved by the Network Functions Virtualisation (NFV) ETSI Industry
Specification Group (ISG) and represents the views of those members who participated in this ISG.
It does not necessarily represent the views of the entire ETSI membership.
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2 ETSI GR NFV-IFA 012 V3.1.1 (2018-10)
Reference
DGR/NFV-IFA012
Keywords
MANO, network, NFV, service, use case
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3 ETSI GR NFV-IFA 012 V3.1.1 (2018-10)
Contents
Intellectual Property Rights . 7
Foreword . 7
Modal verbs terminology . 7
1 Scope . 8
2 References . 8
2.1 Normative references . 8
2.2 Informative references . 8
3 Definition of terms and abbreviations . 8
3.1 Terms . 8
3.2 Abbreviations . 9
4 Application & service management in NFV context . 10
4.1 Introduction . 10
4.2 Relation to other NFV group specifications . 10
5 General use cases . 10
5.1 Introduction . 10
5.2 NS lifecycle management in Broadband Network . 10
5.2.1 Use case description. 10
5.2.2 Trigger . 11
5.2.3 Actors and roles . 11
5.2.4 Pre-conditions . 12
5.2.5 Post-conditions . 12
5.2.6 Flow description . 12
5.3 NS monitoring in Broadband Network . 13
5.3.1 Use case description. 13
5.3.2 Trigger . 14
5.3.3 Actors and roles . 14
5.3.4 Pre-conditions . 14
5.3.5 Post-conditions . 15
5.3.6 Flow description . 15
5.4 Notification about a lack of capacity during NS LCM operation . 16
5.4.1 Use case description. 16
5.4.2 Trigger . 16
5.4.3 Actors and roles . 16
5.4.4 Pre-conditions . 17
5.4.5 Post-conditions . 17
5.4.6 Flow description . 17
5.5 Virtual Converged IP Messaging NS deployment . 17
5.5.1 Use case description. 17
5.5.2 Actors and roles . 18
5.5.3 Pre-conditions . 18
5.5.4 Post-conditions . 18
5.5.5 Flow description . 19
5.6 OSS requests an NS instance update from the NFVO . 19
5.6.1 Use case description. 19
5.6.2 Actors and roles . 19
5.6.3 Pre-conditions . 20
5.6.4 Post-conditions . 20
5.6.5 Flow description . 20
5.7 On-board NSD from OSS/BSS . 21
5.7.1 Use case description. 21
5.7.2 Actors and roles . 23
5.7.3 Pre-conditions . 23
5.7.4 Post-conditions . 23
5.7.5 Flow description . 23
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4 ETSI GR NFV-IFA 012 V3.1.1 (2018-10)
5.8 BSS/OSS Queries VNFs . 24
5.8.1 Use case Description . 24
5.8.2 Actors and roles . 24
5.8.3 Pre-conditions . 25
5.8.4 Post-conditions . 25
5.8.5 Flow description . 25
5.9 BSS/OSS is notified of VNF Package on-boarding . 25
5.9.1 Use case Description . 25
5.9.2 Actors and roles . 25
5.9.3 Pre-conditions . 26
5.9.4 Post-conditions . 26
5.9.5 Flow description . 26
5.10 BSS/OSS Queries NSDs . 27
5.10.1 Use case Description . 27
5.10.2 Actors and roles . 27
5.10.3 Pre-conditions . 27
5.10.4 Post-conditions . 27
5.10.5 Flow description . 28
5.11 NFVO updates BSS/OSS with NSD information after NSD on-boarding . 28
5.11.1 Use case Description . 28
5.11.2 Actors and roles . 28
5.11.3 Pre-conditions . 28
5.11.4 Post-conditions . 29
5.11.5 Flow description . 29
5.12 OSS requests a QoS update in connection with an NSD . 29
5.12.1 Use case Description . 29
5.12.2 Trigger . 30
5.12.3 Actors and roles . 30
5.12.4 Pre-conditions . 30
5.12.5 Post-conditions . 30
5.12.6 Flow description . 30
5.13 Instantiate Multiple Concatenated NSs . 31
5.13.1 Use case Description . 31
5.13.1.1 Introduction . 31
5.13.1.2 Parallel vs Sequential NS Instantiation requests . 32
5.13.1.3 NS instantiation requests to different NFVOs . 32
5.13.1.4 Utilizing an existing NS instantiation . 33
5.13.2 Actors and roles . 33
5.13.3 Pre-conditions . 33
5.13.4 Post-conditions . 34
5.13.5 Flow description . 34
5.14 Use Case for OSS/BSS instantiation of hybrid PNF/VNF NS . 35
5.14.1 Use case Description . 35
5.14.2 Actors and roles . 37
5.14.3 Pre-conditions . 37
5.14.4 Post-conditions . 37
5.14.5 Flow description . 37
5.15 VNF Configuration from OSS/BSS . 38
5.15.1 Use case Description . 38
5.15.2 Trigger . 40
5.15.3 Actors and roles . 40
5.15.4 Pre-conditions . 40
5.15.5 Post-conditions . 40
5.15.6 Flow description . 41
5.16 E2E service healing . 41
5.16.1 Use case Description . 41
5.16.2 Trigger . 42
5.16.3 Actors and roles . 42
5.16.4 Pre-conditions . 42
5.16.5 Post-conditions . 43
5.16.6 Flow description . 43
5.17 End to End Service Termination from the OSS/BSS . 44
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5 ETSI GR NFV-IFA 012 V3.1.1 (2018-10)
5.17.1 Use case Description . 44
5.17.1.1 Introduction . 44
5.17.1.2 Parallel vs Sequential NS Termination requests . 45
5.17.1.3 Network Service Termination requests to different NFVOs . 45
5.17.2 Trigger . 46
5.17.3 Actors and roles . 46
5.17.4 Pre-conditions . 47
5.17.5 Post-conditions . 47
5.17.6 Flow description . 47
5.18 Switching from several active Nsa instances to new NSb instances . 48
5.18.1 Use case Description . 48
5.18.2 Trigger . 48
5.18.3 Actors and roles . 48
5.18.4 Pre-conditions . 48
5.18.5 Post-conditions . 48
5.18.6 Flow description . 49
5.19 Deletion of NSD by the OSS . 50
5.19.1 Use case Description . 50
5.19.2 Trigger . 50
5.19.3 Actors and Roles . 50
5.19.4 Pre-conditions . 50
5.19.5 Post-conditions . 50
5.19.6 Flow Description . 50
5.20 Deletion of a specific version of NSD by the OSS . 51
5.20.1 Use case Description . 51
5.20.2 Trigger . 51
5.20.3 Actors and Roles . 51
5.20.4 Pre-conditions . 51
5.20.5 Post-conditions . 52
5.20.6 Flow Description . 52
5.21 Partial failure of concatenated service instantiation from OSS/BSS . 52
5.21.1 Use case Description . 52
5.21.2 Trigger . 53
5.21.3 Actors and Roles . 53
5.21.4 Pre-conditions . 53
5.21.5 Post-conditions . 53
5.21.6 Base Flow . 53
5.22 OSS Requests a NS Scale In . 54
5.22.1 Use case Description . 54
5.22.2 Trigger . 55
5.22.3 Actors and Roles . 55
5.22.4 Pre-conditions . 55
5.22.5 Post-conditions . 55
5.22.6 Flow Description . 55
5.23 OSS Copies VNF Package from one NFVO to another NFVO . 56
5.23.1 Use case Description . 56
5.23.2 Trigger . 56
5.23.3 Actors and Roles . 56
5.23.4 Pre-conditions .
...