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    ETSI GS NFV-INF 001-2015 Network Functions Virtualisation (NFV) Infrastructure Overview (V1 1 1)《网络虚拟化技术 (NFV) 基础设施概述 (V1 1 1)》.pdf

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    ETSI GS NFV-INF 001-2015 Network Functions Virtualisation (NFV) Infrastructure Overview (V1 1 1)《网络虚拟化技术 (NFV) 基础设施概述 (V1 1 1)》.pdf

    1、 ETSI GS NFV-INF 001 V1.1.1 (2015-01) Network Functions Virtualisation (NFV); Infrastructure Overview Disclaimer This 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 participat

    2、ed in this ISG. It does not necessarily represent the views of the entire ETSI membership. GROUP SPECIFICATION ETSI ETSI GS NFV-INF 001 V1.1.1 (2015-01) 2Reference DGS/NFV-INF001 Keywords architecture, NFV ETSI 650 Route des Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 92 94 42 00 Fa

    3、x: +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 The present document may be made available in electronic versions and/or in p

    4、rint. The content of any electronic and/or print versions of the present document shall not be modified without the prior written authorization of ETSI. In case of any existing or perceived difference in contents between such versions and/or in print, the only prevailing document is the print of the

    5、 Portable Document Format (PDF) version kept on a specific network drive within ETSI Secretariat. Users of the present document should be aware that the document may be subject to revision or change of status. Information on the current status of this and other ETSI documents is available at http:/p

    6、ortal.etsi.org/tb/status/status.asp If you find errors in the present document, please send your comment to one of the following services: http:/portal.etsi.org/chaircor/ETSI_support.asp Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanica

    7、l, including photocopying and microfilm except as authorized by written permission of ETSI. The content of the PDF version shall not be modified without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. European Telecommunications Sta

    8、ndards Institute 2015. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are Trade Marks of ETSI registered for the benefit of its Members. 3GPPTM and LTE are Trade Marks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo a

    9、re Trade Marks registered and owned by the GSM Association. ETSI ETSI GS NFV-INF 001 V1.1.1 (2015-01) 3Contents Intellectual Property Rights 5g3Foreword . 5g3Modal verbs terminology 5g31 Scope 6g32 References 6g32.1 Normative references . 6g32.2 Informative references 7g33 Definitions and abbreviati

    10、ons . 8g33.1 Definitions 8g33.2 Abbreviations . 11g34 Objectives of the NFV Infrastructure . 13g34.1 Standardizing Organisations Impacting the NFVI . 14g35 Structure of NFV Infrastructure Architecture Documentation . 14g36 Architectural Principles of the Network Functions Virtualisation Infrastructu

    11、re (NFVI) . 16g36.1 Virtualisation and Associated Interfaces 16g36.1.1 Describing and Specifying Network Functions When Virtualised . 16g36.1.2 NFV Interoperability Challenges 18g36.1.3 Management and Orchestration When Network Functions are Virtualised 19g36.1.4 Brief Formal Description and Definit

    12、ion of Virtualisation . 20g36.1.5 Standardizing Organisations Impacting Virtualisation and Associated Interfaces . 22g36.2 NFVI and Cloud Computing 22g36.2.1 Essential Characteristics of Cloud Computing applied to the NFVI . 23g36.2.1.1 On-demand self-service in NFVI 23g36.2.1.2 Broad network access

    13、 in NFVI . 23g36.2.1.3 Resource pooling in NFVI 23g36.2.1.4 Rapid elasticity in NFVI . 23g36.2.1.5 Measured service in NFVI 24g36.2.2 Service Models impacting the NFVI 24g36.2.2.1 SaaS. 24g36.2.2.2 PaaS. 24g36.2.2.3 IaaS . 24g36.2.3 Cloud Deployment Models impact on NFVI 24g36.2.3.1 NFVI as a Privat

    14、e Cloud Infrastructure . 24g36.2.3.2 NFVI Community Clouds . 25g36.2.3.3 Public Cloud and NFVI . 25g36.2.3.4 Hybrid Cloud and NFVI 25g36.2.4 Standardizing Organisations for Essential Characteristics of Cloud Computing applied to the NFVI . 25g36.3 Domains and Inter-Domain Interfaces . 25g36.3.1 Stan

    15、dardizing Organisations Impacting Domains and Inter-Domain Interfaces . 28g36.4 Multiplicity, Composition, and Decomposition . 29g36.4.1 Principles of Multiplicity 29g36.4.2 NFVI Implications of Complete and Partial Virtualization of Network Functions 30g36.4.2.1 Complete and Partial Virtualization

    16、31g36.4.2.2 Decomposition of VNFs and Relationships between VNFs . 31g36.4.2.3 1:1 VNF Implementation of a Network Element by a VNF 31g36.4.2.4 N:1 Implementation of a Network Element by Parallel VFNCs . 32g36.4.2.5 1:N Multiplexed Implementation of Multiple Network Elements by a Single VNF . 33g36.

    17、4.2.6 Shared Virtual Network Function Component Instances 34g36.4.2.7 Relationship of Virtual Network Functions to Orchestration 34g36.4.2.8 Other Aspects of Virtual Network Function Decomposition 34g36.4.3 Standardizing Organisations Impacting Multiplicity, Composition, and Decomposition . 35g36.5

    18、Economics and Practical Interoperability . 35g3ETSI ETSI GS NFV-INF 001 V1.1.1 (2015-01) 46.5.1 Interoperability and Hierarchical Interfaces 35g36.5.2 Economics and Interoperability 36g36.5.3 Economic Analysis of Network Function Virtualization 38g36.6 Key Quality Indicators for the NFVI 39g36.7 Sec

    19、urity Aspects . 39g37 Domains of the NFV Infrastructure 40g37.1 Compute Domain . 45g37.1.1 Functional Description of the Compute Domain 46g37.1.2 Compute Node 46g37.1.3 Functional Description of Storage 47g37.1.4 Scope of a Compute Node 48g37.1.5 Standardizing Organisations Impacting the Compute Dom

    20、ain . 48g37.2 Hypervisor Domain 49g37.2.1 Standardizing Organisations Impacting the Hypervisor Domain 50g37.3 Infrastructure Network Domain . 51g37.3.1 Standardizing Organisations Impacting the Infrastructure Network Domain . 53g38 Challenges in Performance and Portability of VNFs . 53g38.1 Challeng

    21、e 1: Processing performance depends on a number of factors . 54g38.2 Challenge 2: Interconnection of VNFs matter, and there are many options . 54g38.3 Challenge 3: Virtualisation may bring portability at the expense of unpredictable performance . 55g38.4 Challenge 4: The environment should be as sim

    22、ple to manage as possible . 56g3Annex A (informative): Contacts 57g3Annex B (informative): Bibliography . 58g3History 59g3ETSI ETSI GS NFV-INF 001 V1.1.1 (2015-01) 5Intellectual Property Rights IPRs essential or potentially essential to the present document may have been declared to ETSI. The inform

    23、ation 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 E

    24、TSI Secretariat. Latest updates are available on the ETSI Web server (http:/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 up

    25、dates on the ETSI Web server) which are, or may be, or may become, essential to the present document. Foreword This Group Specification (GS) has been produced by ETSI Industry Specification Group (ISG) Network Functions Virtualisation (NFV). The present document gives an overview to the series of do

    26、cuments covering the NFV Infrastructure. Infrastructure Architecture Document Document # Overview GS NFV INF 001 Architecture of the Infrastructure Domains Compute Domain GS NFV INF 003 Hypervisor Domain GS NFV INF 004 Infrastructure Network Domain GS NFV INF 005 Architectural Methodology Interfaces

    27、 and Abstraction GS NFV INF 007 Service Quality Metrics GS NFV INF 010 Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “may not“, “need“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the ET

    28、SI 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 ETSI GS NFV-INF 001 V1.1.1 (2015-01) 61 Scope The present document presents an overview of the architecture of the NFV Infrastructur

    29、e (NFVI) which supports deployment and execution of Virtualised Network Functions (VNFs). As well as presenting a general overview description of the NFV Infrastructure, the present document sets the NFV infrastructure and all the documents which describe it in the context of all the documents of th

    30、e NFV. It also describes how the documents which describe the NFV infrastructure relate to each other. The present document does not provide any detailed specification but makes reference to specifications developed by other bodies and to potential specifications, which, in the opinion of the NFV IS

    31、G could be usefully developed by an appropriate Standards Developing Organisation (SDO). The overall objectives of the ISG NFV were set out in the white paper i.1 that led to the founding of the ISG and updated in the white paper update i.2. 2 References 2.1 Normative references References are eithe

    32、r 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 reference document (including any amendments) applies. Referenced documents which ar

    33、e 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 were valid at the time of publication, ETSI cannot guarantee their long term validity. The following referenced documents are necessary

    34、for the application of the present document. 1 ETSI ETSI GS NFV 001 (V1.1.1) (10-2013): “Network Functions Virtualisation (NFV); Use Cases“. 2 ETSI ETSI GS NFV 002 (V1.1.1) (10-2013): “Network Functions Virtualisation (NFV); Architectural Framework“. 3 ETSI ETSI GS NFV 003 (V1.1.1) (10-2013): “Netwo

    35、rk Functions Virtualisation (NFV); Terminology for Main Concepts in NFV“. 4 ETSI ETSI GS NFV 004 (V1.1.1) (10-2013): “Network Functions Virtualisation (NFV); Virtualisation Requirements“. 5 ETSI GS NFV-PER 002 (V1.1.1) (10-2013): “Network Functions Virtualisation (NFV); Proofs of Concepts; Framework

    36、“. 6 ETSI GS NFV-SEC 001 (V1.1.1) (10-2014): “Network Functions Virtualisation (NFV); NFV Security; Problem Statement“. ETSI ETSI GS NFV-INF 001 V1.1.1 (2015-01) 72.2 Informative references References are either specific (identified by date of publication and/or edition number or version number) or

    37、non-specific. For specific references, only the cited version applies. For non-specific references, the latest version of the reference document (including any amendments) applies. NOTE: While any hyperlinks included in this clause were valid at the time of publication, ETSI cannot guarantee their l

    38、ong 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 NFV Whitepaper: “Network Function Virtualization“, issue 1, (2012). NOTE: Available at http:/portal.etsi.org/NFV/

    39、NFV_White_Paper.pdf. i.2 NFV Whitepaper: “Network Function Virtualization - Update White Paper“, issue 2, (2013). NOTE: Available at http:/portal.etsi.org/NFV/NFV_White_Paper2.pdf. i.3 IEEE Cloud Computing 2009: “The Method and Tool of Cost Analysis for Cloud Computing“, Ying Li, Tiancheng Liu, Jie

    40、Qiu, Fengchun Wang. i.4 IEEE System Science (HICSS) (2012): “Costing of Cloud Computing Services: A Total Cost of Ownership Approach“, B. Martens, M. Walterbusch, F. Teuteberg. i.5 TR174 Enterprise-Grade IaaS Requirements Rev1.3. NOTE: Available at http:/www.tmforum.org/TechnicalReports/EnterpriseGr

    41、adeExternal/50445/article.html. i.6 The Open Virtualization Format (OVF) Specification, Version 2.0, 2012, Distributed Management Task Force. NOTE: Available at http:/dmtf.org/sites/default/files/standards/documents/DSP0243_2.0.0.pdf. i.7 Master Usage Model: Compute Infrastructure as a Service, Rev

    42、1, (2012), Open Data Center Alliance. NOTE: Available at http:/www.opendatacenteralliance.org/docs/ODCA_Compute_IaaS_MasterUM_v1.0_Nov2012.pdf. i.8 Usage Model: Guide to Interoperability Across Clouds, 2012, Open Data Center Alliance. NOTE: Available at http:/www.opendatacenteralliance.org/docs/ODCA

    43、_Interop_Across_Clouds_Guide_Rev1.0.pdf. i.9 USAGE: Input/Output (IO) Controls , Rev 1.1., 2012, Open Data Center Alliance. NOTE: Available at http:/www.opendatacenteralliance.org/docs/IO_Controls_Rev_1.1_b.pdf. i.10 NIST SP-800-145 (September 2011): “The NIST Definition of Cloud Computing,“ Peter M

    44、ell and Timothy Grance, US National Institute of Standards and Technology. NOTE: Available at http:/csrc.nist.gov/publications/nistpubs/800-145/SP800-145.pdf. i.11 Recommendation ITU-T Q.1741: “GSM evolved UMTS core network“. i.12 ETSI GS NFV-INF 003: “Network Functions Virtualisation (NFV); Infrast

    45、ructure; Compute Domain“. i.13 ETSI GS NFV-INF 004: “Network Functions Virtualisation (NFV); Infrastructure; Hypervisor Domain“. i.14 ETSI GS NFV-INF 005: “Network Functions Virtualisation (NFV); Infrastructure; Infrastructure Network Domain“. ETSI ETSI GS NFV-INF 001 V1.1.1 (2015-01) 8i.15 ETSI GS

    46、NFV-INF 007: “Network Functions Virtualisation (NFV); Infrastructure; Methodology to describe Interfaces and Abstractions“. i.16 A. Capiluppi, K-J.Stol, C. Boldyreff, “Software reuse in Open Source: A Case Study“, Int“l J. of Open Source Software and Processes, Vol 3. Iss. 3, (2011). i.17 NIST SP-80

    47、0-146: “Cloud Computing Synopsis and Recommendations“. i.18 IEEE 802.1QTM: “Virtual LANs“. i.19 IEEE 802.1adTM: “Support on Provider Bridges“. i.20 ISO/IEC JTC1 SC 38: “Distributed application platforms and services (DAPS)“. NOTE: Available at http:/www.iso.org/iso/home/standards_development/list_of

    48、_iso_technical_committees/jtc1_home/jtc1_sc38_home.htm. i.21 Recommendation ITU-T SG13: “Future networks including cloud computing, mobile and next-generation networks“. NOTE: Available at http:/www.itu.int/en/ITU-T/studygroups/2013-2016/13/Pages/default.aspx. i.22 Recommendation ITU-T SG15: “Networ

    49、ks, Technologies and Infrastructures for Transport, Access and Home“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: container interface: environment within a HFB which is configured in or to realize a VFB NOTE 1: This includes the configurability and/or programming language of the environment. The container interface is not an interface between functional blocks. NOTE 2: Container interface should not be confused with co


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