1、 ETSI GS NFV-EVE 003 V1.1.1 (2016-01) Network Functions Virtualisation (NFV); Ecosystem; Report on NFVI Node Physical Architecture Guidelines for Multi-Vendor Environment Disclaimer This document has been produced and approved by the Network Functions Virtualisation (NFV) ETSI Industry Specification
2、 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. GROUP SPECIFICATION ETSI ETSI GS NFV-EVE 003 V1.1.1 (2016-01)2 Reference DGS/NFV-EVE003 Keywords architecture, NFV, NFVI ETSI 650 Route des
3、Lucioles F-06921 Sophia Antipolis Cedex - FRANCE Tel.: +33 4 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/st
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8、t and the foregoing restriction extend to reproduction in all media. European Telecommunications Standards 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 regis
9、tered for the benefit of its Members and of the 3GPP Organizational Partners. GSM and the GSM logo are Trade Marks registered and owned by the GSM Association. ETSI ETSI GS NFV-EVE 003 V1.1.1 (2016-01)3 Contents Intellectual Property Rights 6g3Foreword . 6g3Modal verbs terminology 6g31 Scope 7g32 Re
10、ferences 7g32.1 Normative references . 7g32.2 Informative references 7g33 Definitions and abbreviations . 8g33.1 Definitions 8g33.2 Abbreviations . 8g34 Principles for development of physical components 9g34.1 Introduction 9g34.2 General principles. 10g34.2.1 Observations . 10g34.2.2 High level goal
11、s for NFVI Nodes . 11g34.2.3 Other solution values 11g34.3 Key criteria . 11g34.3.1 Space . 11g34.3.2 Power 11g34.3.3 Cooling . 12g34.3.4 Physical interconnect 12g34.3.5 Management . 12g34.3.6 Climatic 12g34.3.7 Acoustic 12g34.4 Open Compute Project . 13g35 Overview of node functions . 13g35.1 Intro
12、duction 13g35.2 Compute node 13g35.3 Storage node . 13g35.4 Network node . 13g35.5 NFVI Node . 14g36 Physical components 14g36.1 Commercial products . 14g36.2 Racks 15g36.2.1 Introduction. 15g36.2.2 Relationship of racks to NFVI Nodes . 15g36.2.2.1 Introduction . 15g36.2.2.2 Geographic location 16g3
13、6.2.2.3 1:N NFVI Node to rack mapping 16g36.2.2.4 N:1 NFVI Node to rack mapping 17g36.2.2.5 N:M NFVI Node to rack mapping 17g36.2.3 Industry equipment practices 18g36.2.3.1 Mechanical dimensions. 18g36.2.3.2 Weight considerations . 18g36.2.3.3 Safety considerations 18g36.2.3.4 Electromagnetic interf
14、erence considerations . 19g36.2.4 Installation of compute/network/storage nodes 19g36.2.5 Rack-level management considerations 19g36.2.6 Volumetric efficiency considerations . 19g36.2.7 Open Compute example 20g36.2.8 Recommendations . 21g36.3 Processors . 22g36.3.1 Introduction. 22g36.3.2 Instructio
15、n set 22g3ETSI ETSI GS NFV-EVE 003 V1.1.1 (2016-01)4 6.3.3 Multi-core support 22g36.3.4 Operating system 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:
16、/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, essenti
17、al to the present document. 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“,
18、 “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 ETSI GS NFV-EVE 003 V1.1.1 (2016-01)7 1 Scope The pres
19、ent document provides guidelines for NFVI Node physical architecture. It is limited to the hardware resources - compute, storage, and network - needed to construct and support the functions of an NFVI Node. This includes physical components needed to house and interconnect nodes. The present documen
20、t also provides some examples on “building“ specific NVFI Node configurations and addresses related issues such as reliability and energy efficiency. 2 References 2.1 Normative references References are either specific (identified by date of publication and/or edition number or version number) or no
21、n-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 http:/docbo
22、x.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. Not applicable. 2.2 Informative references Ref
23、erences 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
24、 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
25、GS NFV-INF 001 (V1.1.1): “Network Functions Virtualisation (NFV); Infrastructure Overview“. i.2 IEEE 802.3ae Standard for Information technology: “Telecommunications and information exchange between systems - Local and metropolitan area networks, - Specific requirements Part 3: Carrier Sense Multipl
26、e Access with Collision Detection (CSMA/CD) Access Method and Physical Layer Specifications, Amendment 1: Media Access Control (MAC) Parameters, Physical Layers, and Management Parameters for 10 Gb/s Operation“. i.3 Introducing data centre fabric, the next-generation Facebook data center network. NO
27、TE: Available at https:/ i.4 ETSI EN 300 019-1-3: “Environmental Engineering (EE); Environmental conditions and environmental tests for telecommunications equipment; Part 1-3: Classification of environmental conditions; Stationary use at weatherprotected locations“. i.5 ETSI EN 300 753: “Environment
28、al Engineering (EE); Acoustic noise emitted by telecommunications equipment“. i.6 NEBS GR-63: “NEBS Requirements: Physical Protection“. ETSI ETSI GS NFV-EVE 003 V1.1.1 (2016-01)8 i.7 ASHRAE: “Thermal Guidelines for Data Processing Environment“, 3rd edition, 2012. i.8 ETSI GS NFV 002 (V1.2.1): “Netwo
29、rk Functions Virtualisation (NFV); Architectural Framework“. i.9 ETSI GS NFV-INF 003 (V1.1.1): “Network Functions Virtualisation (NFV); Infrastructure; Compute Domain“. i.10 ETSI GS NFV-MAN 001 (V1.1.1): “Network Functions Virtualisation (NFV); Management and Orchestration“. i.11 EIA/ECA-310, Revisi
30、on E, December 1, 2015: “Electronic Components Industry Association (ECIA)“. i.12 ETSI ETS 300 119-4: “Equipment Engineering (EE); European telecommunication standard for equipment practice; Part 4: Engineering requirements for subracks in miscellaneous racks and cabinets“. i.13 ETSI GS NFV-REL 003
31、(V0.3.0) (08-2015): “Network Functions Virtualisation (NFV); Reliability; Report on Models and Features for E2E Reliability“. NOTE: Available at https:/docbox.etsi.org/ISG/NFV/Open/Drafts/REL003_E2E_reliability_models/NFV-REL003v030.zip. i.14 Final Report: “Virtualised Mobile Network with Integrated
32、 DPI, ETSI ISG NFV, October 31st2014“. i.15 “Refactoring Telco Functions, the Opportunity for OCP in telco SDN and NFV Architecture“, Tom Anschutz, March 9, 2015. i.16 IETF RFC 7075: “Diameter Base Protocol“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, t
33、he terms and definitions given in ETSI GS NFV-INF 003 i.9, ETSI GS NFV-INF 001 i.1 apply. 3.2 Abbreviations For the purposes of the present document, the following abbreviations apply: AC Alternating Current AES Advanced Encryption Standard AES-NI Advanced Encryption Standard New Instructions API Ap
34、plication Program Interface ASHRAE American Society of Heating, Refrigerating, and Air-conditioning Engineers CPE Customer Premise Equipment CPU Central Processing Unit CRC Cyclic Redundancy Check DC Direct Current DC-DC Direct Current-Direct Current DMA Direct Memory Access DSC Diameter Signaling C
35、ontroller E2E End to End ECC Error Correcting Code EMI Electromagnetic Interference EPC Evolved Packet Core ER Extended Reach FRU Field Replaceable Unit FW FirmWare ETSI ETSI GS NFV-EVE 003 V1.1.1 (2016-01)9 GPON Gigabit Passive Optical Network GR Generic Requirements HDD Hard Disk Drive ISG Industr
36、y Specification Group IT Information Technology JBOD Just a Bunch Of Disks KVM Kernel-based Virtualisation Machine LAN Local Area Network LR Long Reach LW Long Wavelength MANO Management and Orchestration MME Mobility Management Entity NAS Network Attached StorageNEBS Network Equipment Building Syst
37、em NFV Network Functions Virtualisation NFVI NFV Infrastructure NFVI-PoP NFV Infrastructure Point of Presence NUMA Non-Uniform Memory Access OCP Open Compute Project OLT Optical Line Terminator OS Operating System PCI Peripheral Component Interconnect PGW Packet Data Network Gateway SDDC Single Devi
38、ce Data Correction SGW Serving Gateway SONET Synchronous Optical Networking SR Special Report SR-IOV Single Root Input/Output Virtualisation SW Short Wavelength ToR Top of Rack UMA Uniform Memory Access UPS Uninterruptible Power Supply VDC Volts of Direct Current VLAN Virtual Local Area Network VM V
39、irtual Machine VNF Virtualised Network Function WAN Wide Area Network 4 Principles for development of physical components 4.1 Introduction Virtualised Network Functions (VNFs) have to reside and operate on physical hardware. The telecommunications industry is moving away from specialized, sophistica
40、ted, and possibly proprietary hardware; instead the goal is to move towards commercially available off-the-shelf products in terms of processors, disks, racks, and other physical elements. The goal of the present document is to provide guidance for an ecosystem of generic and commonly available sets
41、 of physical products and components for the industry. The guidelines will be beneficial to telecommunication equipment providers and other vendors as well as service providers in the development and acquisition of desired components for building NFVI Nodes. The focus of the present document is limi
42、ted to the description of the physical hardware - compute, storage, and network domains shown in figure 1. The present document draws upon available hardware principles (e.g. Open Compute Project) as necessary. Other topics covered include the following: Node functions (compute, storage, network); P
43、hysical components (racks, frames, processors, etc.); ETSI ETSI GS NFV-EVE 003 V1.1.1 (2016-01)10 Power and cooling issues - guidelines on potential relationships between power delivery, heat build-up and heat dissipation will be provided as appropriate; Interconnection methods. Figure 1: NFV archit
44、ectural framework and identification of NFVI domains Clause 4.2 provides general principles and goals for the NFVI Node physical architecture. Clause 4.3 provides key criteria for NFVI Nodes. Additional clauses outline common architectural practices with evaluation of their applicability to the NFVI
45、 Node physical architecture. 4.2 General principles 4.2.1 Observations These general observations are included as guidance when considering architectural implementations for NFVI Nodes. Unlike software elements of NFV, NFVI has unique characteristics due to its physical nature. General observations
46、include: The end goals for the platform dictate the architectural choices. Without alignment around goals, it is difficult to determine a cohesive architecture; Infrastructure, by nature, is physical. Infrastructure has size and weight. It consumes power and generates heat and noise. These are all i
47、nterrelated and need to be balanced to meet equipment needs. Ambient temperature, power delivery and acoustic limits are derived from building and equipment practices; Infrastructure nodes live within the equipment practices in which they are deployed. They interface with other mechanical, electrica
48、l and software elements. These interfaces and behaviours need to be taken into account. ETSI ETSI GS NFV-EVE 003 V1.1.1 (2016-01)11 4.2.2 High level goals for NFVI Nodes The following high level goals are desired for whatever NFVI Nodes are developed. These goals are consistent with a vision to enab
49、le a robust software ecosystem on commercially available hardware infrastructure. High level goals for NFVI Nodes are: Multi-vendor, multi-customer, commercially available off-the-shelf ecosystem. Specific products do not need to be developed for each customer. Suppliers are free to innovate within the ecosystem; Economical scalability, addressing a wide range of application sizes and capacities; A
