ETSI GS ZSM 002 V1.1.1 (2019-08)

Zero-touch network and Service Management (ZSM); Reference Architecture

DGS/ZSM-002ed111_Arch

General Information

• Status: Published
• Publication Date: 12-Aug-2019
• Technical Committee: ZSM - Zero-touch network and Service Management
• Current Stage: 12 - Completion
• Due Date: 10-Sep-2019
• Completion Date: 13-Aug-2019

Standards Content (Sample)

ETSI GS ZSM 002 V1.1.1 (2019-08)






GROUP SPECIFICATION
Zero-touch network and Service Management (ZSM);
Reference Architecture
Disclaimer
The present document has been produced and approved by the Zero touch network and Service Management (ZSM) 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 GS ZSM 002 V1.1.1 (2019-08)



Reference
DGS/ZSM-002ed111_Arch
Keywords
architecture, management, network, service

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3 ETSI GS ZSM 002 V1.1.1 (2019-08)
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, symbols, abbreviations and conventions . 9
3.1 Terms . 9
3.2 Symbols . 10
3.3 Abbreviations . 10
3.4 Conventions . 11
4 Architecture principles . 12
4.1 Introduction . 12
4.2 The principles . 12
4.2.1 Principle 01: Modularity . 12
4.2.2 Principle 02: Extensibility . 12
4.2.3 Principle 03: Scalability . 12
4.2.4 Principle 04: Model-driven, open interfaces . 12
4.2.5 Principle 05: Closed-loop management automation . 13
4.2.6 Principle 06: Support for stateless management functions . 13
4.2.7 Principle 07: Resilience . 13
4.2.8 Principle 08: Separation of concerns in management . 13
4.2.9 Principle 09: Service composability . 13
4.2.10 Principle 10: Intent-based interfaces . 13
4.2.11 Principle 11: Functional abstraction . 13
4.2.12 Principle 12: Simplicity . 13
4.2.13 Principle 13: Designed for automation . 14
5 Architecture requirements . 14
5.1 Introduction . 14
5.2 Non-functional requirements . 14
5.2.1 General non-functional requirements. 14
5.2.2 Non-functional requirements for cross-domain data services . 14
5.2.3 Non-functional requirements for cross-domain service integration . 15
5.3 Functional requirements . 15
5.3.1 General functional requirements . 15
5.3.2 Functional requirements for data collection . 16
5.3.3 Functional requirements for cross-domain data services . 16
5.3.4 Functional requirements for cross-domain service integration and access . 17
5.3.5 Functional requirements for lawful intercept . 17
5.4 Security requirements . 17
6 Reference architecture . 18
6.1 General architecture overview . 18
6.1.1 Introduction. 18
6.1.2 Architectural building blocks . 18
6.1.2.1 Management services . 18
6.1.2.2 Management functions . 19
6.1.2.3 Management domains . 19
6.1.2.4 The end-to-end (E2E) service management domain . 20
6.1.2.5 Integration fabric . 20
6.1.2.6 Data services . 20
6.2 Architecture diagram . 21
6.3 Integration fabric . 22
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6.3.1 Overview . 22
6.3.2 Provided management services . 22
6.3.2.1 Management services registration service . 22
6.3.2.2 Management services discovery service . 23
6.3.2.3 Management communication service . 23
6.3.2.4 Management service invocation routing service . 24
6.3.2.5 Management capability exposure configuration service . 24
6.3.3 Cross-domain integration fabric . 25
6.3.4 Domain integration fabric . 25
6.4 Data services . 26
6.4.1 Overview . 26
6.4.2 Provided management services . 26
6.4.2.1 Data store management service . 26
6.4.2.2 Data persistence services . 27
6.4.2.3 Data processing service . 27
6.4.3 Cross-domain data services. 28
6.4.4 Domain data services . 28
6.5 Management domain . 29
6.5.1 Overview . 29
6.5.2 Domain data collection . 29
6.5.2.1 Description . 29
6.5.2.2 Provided management services . 29
6.5.2.2.1 Event notification services. 29
6.5.2.2.2 Performance measurements streaming service . 30
6.5.2.2.3 Performance measurements collection service . 30
6.5.2.2.4 Log collection service . 31
6.5.3 Domain analytics . 31
6.5.3.1 Description . 31
6.5.3.2 Provided management services . 32
6.5.3.2.1 Analytics services . 32
6.5.3.2.2 Domain condition detection service . 33
6.5.3.2.3 Data optimization services. 33
6.5.4 Domain intelligence . 34
6.5.4.1 Description . 34
6.5.4.2 Provided management services . 34
6.5.4.2.1 AI model management service . 34
6.5.4.2.2 Deployed AI model assessment service . 35
6.5.4.2.3 AI training data management service . 35
6.5.4.2.4 Knowledge base service . 35
6.5.4.2.5 Health issue reporting service . 36
6.5.5 Domain orchestration . 36
6.5.5.1 Description . 36
6.5.5.2 Provided management services . 37
6.5.5.2.1 Domain orchestration service . 37
6.5.5.2.2 Feasibility check service . 38
6.5.5.2.3 Managed services catalogue management service . 38
6.5.5.2.4 Testing service . 38
6.5.5.2.5 Domain inventory information service . 39
6.5.5.2.6 Domain inventory management service . 39
6.5.5.2.7 Domain topology information service . 39
6.5.6 Domain control . 40
6.5.6.1 Description . 40
6.5.6.2 Provided management services . 40
6.5.6.2.1 Resource configuration management service . 40
6.5.6.2.2 Resource lifecycle management services . 40
6.5.6.2.3 Configuration data generation service . 41
6.5.7 Supporting services . 41
6.5.7.1 Description . 41
6.5.7.2 Provided management services . 42
6.5.7.2.1 Policy management service . 42
6.6 E2E service management domain . 42
6.6.1 Overview . 42
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6.6.2 E2E service data collection . 43
6.6.2.1 Description . 43
6.6.2.2 Provided management services . 43
6.6.2.2.1 E2E performance data reporting service . 43
6.6.3 E2E service analytics . 43
6.6.3.1 Description . 43
6.6.3.2 Provided management services . 43
6.6.3.2.1 Analytics services . 43
6.6.3.2.2 E2E service quality management service . 45
6.6.3.2.3 E2E service condition detection service . 45
6.6.4 E2E service intelligence . 46
6.6.4.1 Description . 46
6.6.4.2 Provided management services . 46
6.6.4.2.1 AI model management service . 46
6.6.4.2.2 Deployed AI model assessment service . 47
6.6.4.2.3 AI training data management service . 47
6.6.4.2.4 E2E service health issue reporting service . 47
6.6.5 E2E service orchestration . 48
6.6.5.1 Description . 48
6.6.5.2 Provided management services . 48
6.6.5.2.1 E2E service orchestration service . 48
6.6.5.2.2 Feasibility check service . 49
6.6.5.2.3 Managed services catalogue management service . 50
6.6.5.2.4 E2E testing service . 50
6.6.5.2.5 E2E services inventory information service . 50
6.6.5.2.6 E2E services inventory management service . 51
6.6.5.2.7 E2E services topology information service . 51
6.6.6 Supporting services . 51
6.6.6.1 Description . 51
6.6.6.2 Provided management services . 52
6.6.6.2.1 E2E policy management service . 52
7 Operational considerations (informative) . 52
7.1 Support for closed-loop operation . 52
8 Security considerations. 53
8.1 General . 53
8.2 Data security . 53
8.3 Data privacy . 53
8.4 System security . 53
Annex A (informative): Architecture options . 55
A.1 Integration with legacy management systems . 55
A.1.1 Overview . 55
A.1.2 Option 1: Legacy management domain integration using domain control services at management
domain level . 55
A.1.3 Option 2: Legacy management domain integration using a ZSM adapter . 56
A.2 Examples of valid ZSM architecture deployments . 56
A.2.1 Overview . 56
A.2.2 Example 1: Multiple recursive levels of domain hierarchies . 56
Annex B (informative): Service consumption patterns . 58
B.1 General . 58
B.2 Service registration and discovery. 58
B.3 Synchronous interactions (request-response) . 58
B.4 Asynchronous communication (publish/subscribe) via the integration fabric . 59
B.5 Asynchronous communication (publish/subscribe) with subscription managed by the service
producer . 60
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Annex C (informative): Support for closed-loop operation . 62
Annex D (informative): Automated discovery and consumption of management capabilities
exposed from a management domain . 65
Annex E (informative): Realization of selected scenarios in the ZSM framework reference
architecture. 66
E.1 Introduction . 66
E.2 Example of services discovery with a new management domain . 66
E.2.1 Objective .
...