ETSI GS NFV 003-2018 Network Functions Virtualisation (NFV) Terminology for Main Concepts in NFV (V1 4 1).pdf

1、 ETSI GS NFV 003 V1.3.1 (2018-01) Network Functions Virtualisation (NFV); Terminology for Main Concepts in NFV 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 member

2、s who participated in this ISG. It does not necessarily represent the views of the entire ETSI membership. GROUP SPECIFICATION ETSI ETSI GS NFV 003 V1.3.1 (2018-01) 2 Reference RGS/NFV-003ed131 Keywords NFV, terminology ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4

3、92 94 42 00 Fax: +33 4 93 65 47 16 Siret N 348 623 562 00017 - NAF 742 C Association but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document can be downloaded from: http:/www.etsi.org/standards-search The present document may be made available in

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8、ion in all media. ETSI 2018. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are trademarks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are trademarks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. oneM2M logo is pro

9、tected for the benefit of its Members. GSM and the GSM logo are trademarks registered and owned by the GSM Association. ETSI ETSI GS NFV 003 V1.3.1 (2018-01) 3 Contents Intellectual Property Rights 4g3Foreword . 4g3Modal verbs terminology 4g31 Scope 5g32 References 5g32.1 Normative references . 5g32

10、.2 Informative references 5g33 Terms and definitions . 6g30-9 6g3A to B 6g3C 6g3D to H 6g3I 7g3J to K 7g3L 7g3M 7g3N 7g3O 10g3P 10g3Q 10g3R 10g3S 11g3T 11g3U 12g3V 12g3W to Z 14g34 Abbreviations . 14g30-9 14g3A 14g3B 14g3C 14g3D 14g3E 14g3F 14g3G to H 14g3I 15g3J to K 15g3L 15g3M 15g3N 15g3O 15g3P 1

11、5g3Q 15g3R 15g3S 16g3T 16g3U 16g3V 16g3W to Z 16g3History 17g3ETSI ETSI GS NFV 003 V1.3.1 (2018-01) 4 Intellectual Property Rights Essential patents IPRs essential or potentially essential to the present document may have been declared to ETSI. The information pertaining to these essential IPRs, if

12、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

13、 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

14、 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

15、 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

16、 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 (Verb

17、al forms for the expression of provisions). “must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI GS NFV 003 V1.3.1 (2018-01) 5 1 Scope The present document provides terms and definitions for conceptual entities within the scope of the ISG NFV, in

18、order to achieve a “common language“ across all the ISG NFV working groups. 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 n

19、on-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 http:/docbox.etsi.org/Reference. NOTE: While any hyperlinks included in this clause w

20、ere 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 Directives: Annex 1: “Definitions in relation to the member categories of ETSI“. 2 ETSI TR 121 905: “Digital cell

21、ular telecommunications system (Phase 2+) (GSM); Universal Mobile Telecommunications System (UMTS); LTE; Vocabulary for 3GPP Specifications (3GPP TR 21.905)“. 3 IETF RFC 2330: “Framework for IP Performance Metrics“. 4 IETF RFC 6390: “Guidelines for Considering New Performance Metric Development“. 5

22、ISO/IEC 15939:2007: “Systems and software engineering - Measurement process“. 6 NIST Special Publication 500-307: “Cloud Computing Service Metrics Description“. NOTE: Available at http:/www.nist.gov/itl/cloud/upload/RATAX-CloudServiceMetricsDescription-DRAFT-20141111.pdf. 2.2 Informative references

23、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: Wh

24、ile 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 Re

25、commendation ITU-T Y.3500: “Information technology - Cloud computing - Overview and vocabulary“. i.2 ETSI GS NFV-MAN 001: “Network Functions Virtualisation (NFV); Management and Orchestration“. ETSI ETSI GS NFV 003 V1.3.1 (2018-01) 6 3 Terms and definitions 0-9 Void. A to B administrative domain: co

26、llection of systems and networks operated by a single organization or administrative authority NOTE: This definition is from ETSI GS NFV-MAN 001 i.2. affinity of virtualised network resources: persistent policy that forces Virtual Links (VLs) to share the same physical connectivity NOTE 1: “Persiste

27、nt“ is used here and in the following definitions to indicate that the affinity remains in effect until a change is requested by the consumer. NOTE 2: This may be stipulated to ensure the same transmission characteristics (such as delay) for VLs. anti-affinity of virtualised network resources: persi

28、stent policy that forces Virtual Links (VLs) to not share any physical connectivity NOTE: This may be stipulated to ensure that VLs do not fail at the same time. area affinity: policy that qualifies an affinity (or anti-affinity) policy with respect to location restrictions EXAMPLE: The anti-affinit

29、y policy of having virtualised compute resources on different compute nodes can be further restricted by mandating to locate the compute nodes on different shelves, racks, bays, sites, geographic areas or similar restriction. NOTE: Anti-affinity can be used to support availability, survivability and

30、 performance needs with respect to virtualised resources. C Central Processing Unit (CPU): device in the compute node that provides the primary container interface Composite Network Service (CNS): Network Service containing at least one Network Service compute domain: domain within the NFVI that inc

31、ludes servers and storage compute node: abstract definition of a server consumable virtualised resource: virtualised resource that can be requested for reservation and/or allocation NOTE: Virtualised resources comprise compute, network and storage. EXAMPLE: A volume or object based virtual storage.

32、D to H Void. ETSI ETSI GS NFV 003 V1.3.1 (2018-01) 7 I infrastructure domain: administrative domain that provides virtualised infrastructure resources such as compute, network, and storage or a composition of those resources via a service abstraction to another Administrative Domain, and is responsi

33、ble for the management and orchestration of those resources NOTE: This definition is from ETSI GS NFV-MAN 001 i.2. infrastructure network domain: domain within the NFVI that includes all networking that interconnects compute/storage infrastructure NOTE: It pre-exists the realization of VNFs. infrast

34、ructure resource group: logical resource collection grouping virtual resource instances assigned to a tenant along with software images J to K Void. L lifecycle management: set of functions required to manage the instantiation, maintenance and termination of a VNF or NS M measurement: set of operati

35、ons having the object of determining a Measured Value or Measurement Result. The actual instance or execution of operations leading to a Measured Value. (Based on the definition of Measurement in 5, as cited in 6) metric: standard definition of a quantity, produced in an assessment of performance an

36、d/or reliability of the network, which has an intended utility and is carefully specified to convey the exact meaning of a measured value NOTE: This definition is consistent with that of Performance Metric in 3 and 4. EXAMPLE: Packet transfer performance or reliability of a network. multi-tenancy: f

37、eature where physical,virtual or service resources are allocated in such a way that multiple tenants and their computations and data are isolated from and inaccessible by each another NOTE: This definition has been specialized from the term “multi-tenancy“ as defined in Recommendation ITU-T Y.3500 i

38、.1. N Nested Network Service (NNS): Network Service that is part of a composite Network Service NOTE: A Composite Network Service is a Network Service containing at least one Network Service. network controller: functional block that centralizes some or all of the control and management functionalit

39、y of a network domain and may provide an abstract view of its domain to other functional blocks via well-defined interfaces network forwarding path: ordered list of connection points forming a chain of NFs, along with policies associated to the list Network Function (NF): functional block within a n

40、etwork infrastructure that has well-defined external interfaces and well-defined functional behaviour NOTE: In practical terms, a Network Function is today often a network node or physical appliance. ETSI ETSI GS NFV 003 V1.3.1 (2018-01) 8 Network Functions Virtualisation (NFV): principle of separat

41、ing network functions from the hardware they run on by using virtual hardware abstraction Network Functions Virtualisation Infrastructure (NFVI): totality of all hardware and software components that build up the environment in which VNFs are deployed NOTE: The NFV-Infrastructure can span across sev

42、eral locations, e.g. places where data centres are operated. The network providing connectivity between these locations is regarded to be part of the NFV-Infrastructure. NFV-Infrastructure and VNF are the top-level conceptual entities in the scope of Network Function Virtualization. All other compon

43、ents are sub-entities of these two main entities. Network Functions Virtualisation Infrastructure (NFVI) components: NFVI hardware resources that are not field replaceable, but are distinguishable as COTS components at manufacturing time Network Functions Virtualisation Infrastructure Node (NFVI-Nod

44、e): physical devices deployed and managed as a single entity, providing the NFVI Functions required to support the execution environment for VNFs Network Function Virtualisation Infrastructure Point of Presence (NFVI-PoP): N-PoP where a Network Function is or could be deployed as Virtual Network Fun

45、ction (VNF) Network Functions Virtualisation Management and Orchestration (NFV-MANO): functions collectively provided by NFVO, VNFM, and VIM Network Functions Virtualisation Management and Orchestration Architectural Framework (NFV-MANO Architectural Framework): collection of all functional blocks (

46、including those in NFV-MANO category as well as others that interwork with NFV-MANO), data repositories used by these functional blocks, and reference points and interfaces through which these functional blocks exchange information for the purpose of managing and orchestrating NFV Network Functions

47、Virtualisation Orchestrator (NFVO): functional block that manages the Network Service (NS) lifecycle and coordinates the management of NS lifecycle, VNF lifecycle (supported by the VNFM) and NFVI resources (supported by the VIM) to ensure an optimized allocation of the necessary resources and connec

48、tivity Network Interface Controller (NIC): device in a compute node that provides a physical interface with the infrastructure network network operator: operator of an electronics communications network or part thereof. An association or organization of such network operators also falls within this

49、category (as defined in 1) Network Point of Presence (N-PoP): location where a Network Function is implemented as either a Physical Network Function (PNF) or a Virtual Network Function (VNF) Network Service: composition of Network Function(s) and/or Network Service(s), defined by its functional and behavioural specification NOTE: The Network Service contributes to the behaviour of the higher layer service, which is characterized by at least performance, dependability, and security specifications. The