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GROUP SPECIFICATION
Network Functions Virtualisation (NFV) Release 3;
Management and Orchestration;
Multiple Administrative Domain
Aspect Interfaces Specification
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 GS NFV-IFA 030 V3.2.1 (2019-04)
Reference
RGS/NFV-IFA030ed321
Keywords
interface, management, MANO, NFV
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3 ETSI GS NFV-IFA 030 V3.2.1 (2019-04)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
1 Scope . 5
2 References . 5
2.1 Normative references . 5
2.2 Informative references . 6
3 Definition of terms, symbols and abbreviations . 6
3.1 Terms . 6
3.2 Symbols . 7
3.3 Abbreviations . 7
4 Overview of interfaces for the provisioning of network services across multiple administrative
domains . 7
4.1 Introduction . 7
4.2 Relation to other NFV group specifications . 7
4.3 Conventions . 8
5 Reference points and interface requirements . 8
5.1 Introduction . 8
5.2 Or-Or reference point requirements . 8
5.3 Or-Or interface requirements . 9
5.3.1 NSD Management interface requirements . 9
5.3.2 NS Lifecycle Management interface requirements . 9
5.3.3 NS Lifecycle Operation Granting interface requirements. 9
5.3.4 NS Instance Usage Notification interface requirements . 10
5.3.5 NS Performance Management interface requirements. 10
5.3.6 NS Fault Management interface requirements . 10
5.3.7 Policy Management interface requirements . 10
6 Interfaces related to multiple administrative domains . 10
6.1 NFVO exposed interfaces . 10
6.1.1 Introduction. 10
6.1.2 NSD Management interface . 10
6.1.3 NS Lifecycle Management interface. 10
6.1.4 NS Performance Management interface . 11
6.1.5 NS Fault Management interface . 11
6.1.6 NS Instance Usage Notification Interface . 11
6.1.6.1 Description . 11
6.1.6.2 Subscribe operation . 11
6.1.6.2.1 Description . 11
6.1.6.2.2 Input parameters . 12
6.1.6.2.3 Output parameters . 12
6.1.6.2.4 Operation results . 12
6.1.6.3 Notify operation . 12
6.1.6.3.1 Description . 12
6.1.6.4 Terminate Subscription operation . 12
6.1.6.4.1 Description . 12
6.1.6.4.2 Input parameters . 13
6.1.6.4.3 Output parameters . 13
6.1.6.4.4 Operation results . 13
6.1.6.5 Query Subscription Info operation . 13
6.1.6.5.1 Description . 13
6.1.6.5.2 Input parameters . 13
6.1.6.5.3 Output parameters . 13
6.1.6.5.4 Operation results . 14
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6.1.7 Policy Management interface . 14
6.1.8 NS Lifecycle Operation Granting interface . 14
6.1.8.1 Description . 14
6.1.8.2 Grant NS Lifecycle Operation. 14
6.1.8.2.1 Description . 14
6.1.8.2.2 Input parameters . 14
6.1.8.2.3 Output parameters . 15
6.1.8.2.4 Operation results . 15
6.2 Void . 15
7 Information elements . 15
7.1 Introduction . 15
7.2 Information elements and notifications related to NS instance usage notification . 15
7.2.1 Introduction. 15
7.2.2 NsInstanceUsageNotification . 15
7.2.2.1 Description . 15
7.2.2.2 Trigger conditions . 15
7.2.2.3 Attributes . 16
8 Security considerations and requirements . 16
8.1 Introduction . 16
8.2 Security assessment . 16
8.3 Security requirements . 16
Annex A (informative): Security assessment. 18
Annex B (informative): Authors & contributors . 22
Annex C (informative): Change History . 23
History . 24
ETSI
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5 ETSI GS NFV-IFA 030 V3.2.1 (2019-04)
Intellectual Property Rights
Essential patents
IPRs essential or potentially essential to normative deliverables may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (https://ipr.etsi.org/).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Trademarks
The present document may include trademarks and/or tradenames which are asserted and/or registered by their owners.
ETSI claims no ownership of these except for any which are indicated as being the property of ETSI, and conveys no
right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does
not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks.
Foreword
This Group Specification (GS) has been produced by ETSI Industry Specification Group (ISG) Network Functions
Virtualisation (NFV).
Modal verbs terminology
In the present document "shall", "shall not", "should", "should not", "may", "need not", "will", "will not", "can" and
"cannot" are to be interpreted as described in clause 3.2 of the ETSI Drafting Rules (Verbal forms for the expression of
provisions).
"must" and "must not" are NOT allowed in ETSI deliverables except when used in direct citation.
ETSI
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6 ETSI GS NFV-IFA 030 V3.2.1 (2019-04)
1 Scope
The present document specifies the functional requirements, interfaces and operations to support the provision of
network services across multiple administrative domains based on the interactions between NFVOs in different
administrative domains (supported over the Or-Or reference point).
The present document also specifies the information elements exchanged over the specified interfaces.
The different aspects specified in the present document are derived from ETSI GR NFV-IFA 028 [i.1].
2 References
2.1 Normative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
Referenced documents which are not found to be publicly available in the expected location might be found at
https://docbox.etsi.org/Reference/.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are necessary for the application of the present document.
[1] ETSI GS NFV-IFA 013: "Network Functions Virtualisation (NFV) Release 3; Management and
Orchestration; Os-Ma-Nfvo reference point - Interface and Information Model Specification".
[2] ETSI GS NFV-IFA 010: "Network Functions Virtualisation (NFV) Release 3; Management and
Orchestration; Functional requirements specification".
2.2 Informative references
References are either specific (identified by date of publication and/or edition number or version number) or
non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the
referenced document (including any amendments) applies.
NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee
their long term validity.
The following referenced documents are not necessary for the application of the present document but they assist the
user with regard to a particular subject area.
[i.1] ETSI GR NFV-IFA 028: "Network Functions Virtualisation (NFV) Release 3; Management and
Orchestration; Report on architecture options to support multiple administrative domains".
[i.2] ISO/IEC 9646-7: "Information technology - Open Systems Interconnection - Conformance testing
methodology and framework - Part 7: Implementation Conformance Statements".
[i.3] ETSI GS NFV 003: "Network Functions Virtualisation (NFV); Terminology for Main Concepts in
NFV".
[i.4] ETSI GS NFV-SEC 004 (V1.1.1): "Network Functions Virtualisation (NFV); NFV Security;
Privacy and Regulation; Report on Lawful Interception Implications".
[i.5] ETSI GS NFV-SEC 006 (V1.1.1): "Network Functions Virtualisation (NFV); Security Guide;
Report on Security Aspects and Regulatory Concerns".
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[i.6] ETSI GS NFV-SEC 010 (V1.1.1): "Network Functions Virtualisation (NFV); NFV Security;
Report on Retained Data problem statement and requirements".
[i.7] ETSI GS NFV-SEC 012 (V3.1.1): "Network Functions Virtualisation (NFV) Release 3; Security;
System architecture specification for execution of sensitive NFV components".
[i.8] ETSI GS NFV-SEC 014 (V3.1.1): "Network Functions Virtualisation (NFV) Release 3; NFV
Security; Security Specification for MANO Components and Reference Points".
3 Definition of terms, symbols and abbreviations
3.1 Terms
For the purposes of the present document, the terms given in ETSI GS NFV 003 [i.3] and the following apply:
NFVO-C: NFVO that manages a composite NS instance that has one or more nested NS instances as constituents
which are managed by an NFVO in another administrative domain
NFVO-N: NFVO that manages an NS instance which is used as a nested NS of a composite NS instance managed by
an NFVO in another administrative domain
3.2 Symbols
Void.
3.3 Abbreviations
For the purposes of the present document, the abbreviations given in ETSI GS NFV 003 [i.3] and the following apply:
NOTE: An abbreviation defined in the present document takes precedence over the definition of the same
abbreviation, if any, in ETSI GS NFV 003 [i.3].
LCM Life Cycle Management
4 Overview of interfaces for the provisioning of network
services across multiple administrative domains
4.1 Introduction
NFV-MANO services can be offered and consumed across multiple administrative domains. Those administrative
domains can be mapped to different organizations, e.g. different network operators or different departments of the same
network operator.
Based on the study output of ETSI GR NFV-IFA 028 [i.1], multiple administrative domain aspect includes the case of
network service offered by multiple administrative domains. The concept of composite NS and nested NS as specified
in ETSI GS NFV-IFA 010 [2] is utilized. Reference point Or-Or is provided in NFV-MANO architecture for supporting
the interoperability in this case.
The Or-Or reference point is used for the exchanges between NFVOs in different administrative domains, and supports
the following interfaces:
• Network Service Descriptor (NSD) Management;
• Network Service (NS) Lifecycle Management;
• NS Lifecycle Operation Granting;
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8 ETSI GS NFV-IFA 030 V3.2.1 (2019-04)
• NS Instance Usage Notification;
• NS Performance Management;
• NS Fault Management;
• Policy Management.
The information elements exchanged via the interfaces above are also part of the present document.
4.2 Relation to other NFV group specifications
The present document is referencing information from the following ISG NFV Group Specifications:
• Management and Orchestration - Functional requirements specification ETSI GS NFV-IFA 010 [2]:
- Interfaces associated with the Or-Or reference point are based on the functional requirements specified in
ETSI GS NFV-IFA 010 [2] for the NFVO.
• Management and Orchestration - Os-Ma-Nfvo reference point – Interface and Information Model
Specification ETSI GS NFV-IFA 013 [1]:
- The NSD Management, NS Lifecycle Management, NS Performance Management, NS Fault
Management interface and Policy Management on the Or-Or reference point are based on corresponding
interfaces defined in ETSI GS NFV-IFA 013 [1]. For NSD Management and NS Lifecycle Management
interface, only a subset of operations in ETSI GS NFV-IFA 013 [1] is applied on the relate interfaces of
the Or-Or reference point.
4.3 Conventions
The following notations, defined in ISO/IEC 9646-7 [i.2], are used for the qualifier column of interface information
elements:
• M mandatory - the capability is required to be supported;
• O optional - the capability may be supported or not;
• CM conditional mandatory - the capability is required to be supported and is conditional on the support of
some condition. This condition shall be specified in the Description column;
• CO conditional optional - the capability may be supported or not and is conditional on the support of some
condition. This condition shall be specified in the Description column.
The following notation is used for parameters that represent identifiers, and for attributes that represent identifiers in
information elements and notifications:
• If parameters are referring to an identifier of an actual object, their type is "Identifier".
• If an object (information element or notification) contains an attribute that identifies the object, the type of that
attribute is "Identifier" and the description states that the attribute is the identifier of that particular notification
or information element.
EXAMPLE 1: Identifier "resourceId" of the "NetworkSubnet information element" has type "Identifier" and
description "Identifier of this NetworkSubnet information element".
• If an object (information element or notification) contains an attribute that references another object or objects
defined in an ETSI NFV GS, the type of the attribute is "Identifier", followed by the list of objects it
references.
EXAMPLE 2: "Identifier (Reference to Vnfc)" or "Identifier (Reference to Vnfc, Virtual Link (VL) or
VirtualStorage)".
If the type of a parameter or attribute has been marked as "Not specified" in the "Content" column, this means that its
specification is left for the protocol design/data model design stage.
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5 Reference points and interface requirements
5.1 Introduction
This clause defines requirements applicable to interfaces in the context of the Or-Or reference point for the provisioning
of network service across multiple administrative domains. In this case, the NFVO managing the composite NS is
indicated as NFVO-C, and the NFVO managing the nested NS is indicated as NFVO-N.
5.2 Or-Or reference point requirements
Table 5.2-1 specifies requirements applicable to the Or-Or reference point.
Table 5.2-1: Or-Or reference point requirements
Numbering Functional requirement description
Or-Or.001 The Or-Or reference point shall support the NSD Management interface produced by NFVO-N.
Or-Or.002 The Or-Or reference point shall support the NS Lifecycle Management interface produced by NFVO-N.
Or-Or.003 The Or-Or reference point shall support the NS Performance Management interface produced by NFVO-N.
Or-Or.004 The Or-Or reference point shall support the NS Fault Management interface produced by NFVO-N.
Or-Or.005 The Or-Or reference point shall support the NS Lifecycle Operation Granting interface produced by
NFVO-C.
Or-Or.006 The Or-Or reference point shall support the NS Instance Usage Notification interface produced by NFVO-C.
Or-Or.007 The Or-Or reference point shall support the Policy Management interface produced by NFVO-N.
5.3 Or-Or interface requirements
5.3.1 NSD Management interface requirements
The Or-Or reference point shall support the requirement Os-Ma-nfvo.Nsd.005 defined in ETSI GS NFV-IFA 013 [1]
clause 5.3.1. The NFVO producing the interface is NFVO-N.
5.3.2 NS Lifecycle Management interface requirements
The Or-Or reference point shall support Requirement Os-Ma-nfvo.NsLcm.001, Os-Ma-nfvo.NsLcm.002,
Os-Ma-nfvo.NsLcm.003, Os-Ma-nfvo.NsLcm.004, Os-Ma-nfvo.NsLcm.010, Os-Ma-nfvo.NsLcm.035 and
Os-Ma-nfvo.NsLcm.022 defined in ETSI GS NFV-IFA 013 [1], clause 5.3.2. The NFVO producing the interface is
NFVO-N.
Table 5.3.2-1 specifies additional requirements applicable to the network service lifecycle management interface
produced by NFVO-N on the Or-Or reference point.
Table 5.3.2-1: Network service lifecycle management interface requirements
Numbering Functional requirement description
Or-Or.NsLcm.001 The NS lifecycle management interface produced by NFVO-N on the Or-Or reference point shall
support sharing a nested NS instance among multiple NS instances. See note.
Or-Or.NsLcm.002 The NS lifecycle management interface produced by NFVO-N on the Or-Or reference point shall
support providing notifications about changes of an NS instance that are related to NS lifecycle
management operations.
Or-Or.NsLcm.003 The NS lifecycle management interface produced by NFVO-N on the Or-Or reference point shall
support subscribing to NS lifecycle change notifications.
NOTE: A nested NS instance can be shared among NS instances managed by the same or other NFVO.
The mechanism of tracking a tenancy (e.g. the composite NS) in another administrative domain is not defined in the
present document.
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5.3.3 NS Lifecycle Operation Granting interface requirements
Table 5.3.3-1 specifies requirements applicable to the NS Lifecycle Operation Granting interface produced by NFVO-C
on the Or-Or reference point.
Table 5.3.3-1: NS Lifecycle Operation Granting interface requirements
Numbering Requirement
Or-Or.NSLcog.001 The NS Lifecycle Operation Granting interface produced by NFVO-C on the Or-Or reference
point shall support granting NS lifecycle operations.
5.3.4 NS Instance Usage Notification interface requirements
Table 5.3.4-1 specifies requirements applicable to the NS Instance Usage Notification interface produced by NFVO-C
on the Or-Or reference point (see 1.6.1 for more illustration on NS instance usage).
Table 5.3.4-1: NS Instance Usage Notification interface requirements
Numbering Requirement
Or-Or.NSIun.001 The
...