ETSI EN 303 471 V1.1.1 (2019-01)
Environmental Engineering (EE); Energy Efficiency measurement methodology and metrics for Network Function Virtualisation (NFV)
Environmental Engineering (EE); Energy Efficiency measurement methodology and metrics for Network Function Virtualisation (NFV)
DEN/EE-EEPS26
Okoljski inženiring (EE) - Metodologija merjenja energijske učinkovitosti in meritve za virtualizacijo omrežnih funkcij (NFV)
Ta dokument določa metodo in meritve za določanje energijske učinkovitosti delujočih aplikacij virtualizacije omrežnih funkcij (NFV) in z njimi povezane infrastrukture, ko se ta infrastruktura uvaja zunaj meja omrežij s fiksnim, kabelskim in mobilnim dostopom.
Ta dokument:
• Razširja objektivne KPI-je standarda ETSI EN 305 200-2-2 [i.2] (omrežje s fiksnim dostopom) in ETSI
EN 305 200-2-3 [i.3] (omrežje z mobilnim dostopom) za oceno učinka NFV v teh omrežjih, kot je opisano v ETSI GR NFV 001 [i.4].
• Ne upošteva nobene ocene energije, prihranjene z uvedbo NFV, ker s časovnim žigom ni mogoče primerjati delujoče infrastrukture, iz katere so bile funkcije premaknjene v virtualizirano okolje.
OPOMBA: V omrežju ICT (npr. omrežje s fiksnim dostopom), ki vključuje veliko omrežnih distribucijskih vozlišč (NDN) z različnimi stopnjami obremenitev, ni jasno, ali bo vedno možen prihranek porabe energije - več prednosti prinaša omrežna in operativna prožnost (npr. manj vzdrževanja ali večja zanesljivost).
Ta dokument:
• Ne obravnava operativne energijske učinkovitosti posebne opreme informacijske tehnologije (ITE), kot so strežniki, ki lahko zagotavljajo pripomočke NFV. Te faktorje obravnavajo drugi dokumenti standarda ETSI EN (npr. ETSI EN 303 470 [i.1]).
• Ne določa nobene ocene splošne učinkovitosti uvedbe NFV, čeprav v informativni prilogi vsebuje informacije o tehničnih mejnikih, ki bi bili potrebni, da bi splošno učinkovitost lahko obravnavali v prihodnji reviziji tega dokumenta.
Navedeni KPI-ji so namenjeni predvsem analizi trendov – ne pa primerjavi med posameznimi izvedbami NFV, razen če so pogoji delovanja »podobni«.
General Information
Buy Standard
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Environmental Engineering (EE) - Energy Efficiency measurement methodology and metrics for Network Function Virtualisation (NFV)27.015VSORãQREnergy efficiency. Energy conservation in general19.040Preskušanje v zvezi z okoljemEnvironmental testingICS:Ta slovenski standard je istoveten z:ETSI EN 303 471 V1.1.1 (2019-01)SIST EN 303 471 V1.1.1:2019en01-marec-2019SIST EN 303 471 V1.1.1:2019SLOVENSKI
STANDARD
SIST EN 303 471 V1.1.1:2019
ETSI EN 303 471 V1.1.1 (2019-01) Environmental Engineering (EE); Energy Efficiency measurement methodology and metrics for Network Function Virtualisation (NFV)
EUROPEAN STANDARD SIST EN 303 471 V1.1.1:2019
ETSI ETSI EN 303 471 V1.1.1 (2019-01) 2
Reference DEN/EE-EEPS26 Keywords energy efficiency, energy management, ICT, NFV ETSI 650 Route des 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 à but non lucratif enregistrée à la Sous-Préfecture 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 electronic versions and/or in print. 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 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 https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx If you find errors in the present document, please send your comment to one of the following services: https://portal.etsi.org/People/CommiteeSupportStaff.aspx Copyright Notification No part may be reproduced or utilized in any form or by any means, electronic or mechanical, 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.
© ETSI 2019. All rights reserved.
DECTTM, PLUGTESTSTM, UMTSTM and the ETSI logo are trademarks of ETSI registered for the benefit of its Members. 3GPPTM and LTETM are trademarks of ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and of the oneM2M Partners. GSM® and the GSM logo are trademarks registered and owned by the GSM Association. SIST EN 303 471 V1.1.1:2019
ETSI ETSI EN 303 471 V1.1.1 (2019-01) 3 Contents Intellectual Property Rights . 5 Foreword . 5 Modal verbs terminology . 5 Introduction . 5 1 Scope . 6 2 References . 6 2.1 Normative references . 6 2.2 Informative references . 7 3 Definitions, symbols and abbreviations . 7 3.1 Definitions . 7 3.2 Symbols . 9 3.3 Abbreviations . 9 4 Network Function Virtualisation (NFV) configurations . 10 4.1 Access network . 10 4.2 NFV and energy consumption . 11 5 NFV KPIs for energy efficiency . 11 5.1 Energy efficiency based on data transfer (KPIEE-transfer) . 11 5.1.1 General . 11 5.1.2 Data volume measured in bits . 12 5.1.3 Data volume measured in packets . 12 5.2 NFV effectiveness . 12 6 Measurement conditions. 12 6.1 General requirements . 12 6.1.1 Measurement period . 12 6.1.2 Detailed treatment of assessment periods . 14 6.2 Renewable energy . 15 6.3 Measurement and test equipment . 15 7 Measurement methods . 15 7.1 Measurement method for KPIEE-bit_transfer and KPIEE-packet_transfer . 15 7.1.1 Definition of data volume . 15 7.1.2 Formulae . 16 7.1.3 Definition of terms . 16 8 Measurement report . 16 Annex A (informative): History of network schematics . 17 Annex B (informative): Milestones for NFV effectiveness . 18 B.1 Introduction . 18 B.2 Assessment . 18 B.3 Comparisons . 19 History . 20
SIST EN 303 471 V1.1.1:2019
ETSI ETSI EN 303 471 V1.1.1 (2019-01) 4 List of figures Figure 1: Updated schematic of fixed and mobile access networks .10 Figure 2: Schematic of KPIEE-transfer .11 Figure 3: Schematic showing application of TKPI, TREPEAT and Δt .13 Figure 4: Detailed treatment of assessment timing.14 Figure A.1: Schematic of fixed and mobile communication networks (June 2011) .17
SIST EN 303 471 V1.1.1:2019
ETSI ETSI EN 303 471 V1.1.1 (2019-01) 5 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 European Standard (EN) has been produced by ETSI Technical Committee Environmental Engineering (EE).
National transposition dates Date of adoption of this EN: 1 January 2019 Date of latest announcement of this EN (doa): 30 April 2019 Date of latest publication of new National Standard or endorsement of this EN (dop/e):
31 October 2019 Date of withdrawal of any conflicting National Standard (dow): 31 October 2019
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. Introduction The present document specifies the method and metrics to determine the energy efficiency of operational Network Function Virtualisation (NFV) applications and their associated infrastructure. Any such implementation of NFV within the access network served is addressed by the general engineering and associated energy management KPIs of the access network itself as described in ETSI EN 305 200-2-2 [i.2], ETSI EN 305 200-2-3 [i.3] and ETSI GR NFV 001 [i.4].
SIST EN 303 471 V1.1.1:2019
ETSI ETSI EN 303 471 V1.1.1 (2019-01) 6 1 Scope The present document specifies the method and metrics to determine the energy efficiency of operational Network Function Virtualisation (NFV) applications and their associated infrastructure when that infrastructure is implemented outside the boundaries of the access fixed, cable and mobile networks which they serve. The present document: • Extends the Objective KPIs of ETSI EN 305 200-2-2 [i.2] (fixed access networks) and ETSI EN 305 200-2-3 [i.3] (mobile access networks) to assess the impact of NFV when applied to those networks as described in ETSI GR NFV 001 [i.4]. • Does not consider any assessment of energy saved by the implementation of NFV as there can be no time-stamped comparison of an operational infrastructure from which functions have been removed to a virtualized environment. NOTE: In an ICT network (e.g. a fixed access network) comprising many Network Distribution Nodes (NDNs) with different loading levels it is not clear that there will always be an energy consumption benefit - the more relevant benefit being network and operational flexibility (such as reduced maintenance or increased reliability). The present document: • Does not address the operational energy efficiency of specific Information Technology Equipment (ITE) such as servers which may provide NFV facilities. Other ETSI EN documents (e.g. ETSI EN 303 470 [i.1]) have been prepared to address such factors. • Does not specify any assessment of the overall effectiveness of an NFV implementation although it contains information in an informative annex regarding the technical milestones that would be required for this to be addressed in a future revision of the present document. The KPIs specified are primarily intended for trend analysis - not to enable comparison between individual implementations of NFV unless the conditions of operation are "similar". 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 ES 202 336-12: "Environmental Engineering (EE); Monitoring and control interface for infrastructure equipment (power, cooling and building environment systems used in telecommunication networks); Part 12: ICT equipment power, energy and environmental parameters monitoring information model". SIST EN 303 471 V1.1.1:2019
ETSI ETSI EN 303 471 V1.1.1 (2019-01) 7 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 EN 303 470: "Environmental Engineering (EE); Energy Efficiency measurement methodology and metrics for servers". [i.2] ETSI EN 305 200-2-2: "Access, Terminals, Transmission and Multiplexing (ATTM); Energy management; Operational infrastructures; Global KPIs; Part 2: Specific requirements;
Sub-part 2: Fixed broadband access networks". [i.3] ETSI EN 305 200-2-3: "Access, Terminals, Transmission and Multiplexing (ATTM); Energy management; Operational infrastructures; Global KPIs; Part 2: Specific requirements;
Sub-part 3: Mobile broadband access networks". [i.4] ETSI GR NFV 001: "Network Functions Virtualisation (NFV); Use Cases". [i.5] ETSI GS NFV 003: "Network Functions Virtualisation (NFV); Terminology for Main Concepts in NFV". [i.6] ETSI GS NFV-TST 008: "Network Functions Virtualisation (NFV) Release 2; Testing; NFVI Compute and Network Metrics Specification". [i.7] ISO/IEC 17788: "Information technology -- Cloud computing -- Overview and vocabulary". [i.8] Mandate M/462: "Standardisation mandate addressed to CEN, CENELEC and ETSI in the field of ICT to enable efficient energy use in fixed and mobile information and communication networks". [i.9] CEN-CENELEC-ETSI (12-2011): "Framework Document for ESO Response to EU Mandate M/462". NOTE: Available at https://portal.etsi.org/Portals/0/TBpages/ee/Docs/ESO%20response%20to%20M462%20phase%201%20.pdf. 3 Definitions, symbols and abbreviations 3.1 Definitions For the purposes of the present document, the following terms and definitions apply: Base Station (BS): radio access network component which serves one or more radio cells and interfaces the user terminal (through air interface) and a wireless network infrastructure Base Station (BS) site: Network Distribution Node (NDN) which accommodates a Base Station (BS) Cloud Service Customer (CSC): entity responsible for operation of a network services for cloud service users to consume NOTE: Source: ISO/IEC 17788 [i.7] modified. Cloud Service Provider (CSP): entity which makes cloud services available NOTE: Source: ISO/IEC 17788 [i.7] modified. SIST EN 303 471 V1.1.1:2019
ETSI ETSI EN 303 471 V1.1.1 (2019-01) 8 cloud service user: end user, or applications operating on their behalf, using cloud services NOTE: Source: ISO/IEC 17788 [i.7] modified. core network: functional elements (that is equipment and infrastructure) that enable communication between Operator Sites (OSs) or equivalent ICT sites Customer Premises (CP): any location which is the sole responsibility of the customer energy efficiency: relation between the useful output (telecom service, etc.) and energy consumption Fibre Node (FN): device which performs a media conversion between an optical fibre cable link and a coaxial cable link in a cable access network Head-End (HE): facility for receiving television signals for processing and distribution over a cable access network ICT equipment: equipment providing data storage, processing and transport services NOTE: A combination of Information Technology Equipment and Network Telecommunications Equipment. ICT site: site containing structures or group of structures dedicated to the accommodation, interconnection and operation of ICT equipment together with all the facilities and infrastructures for power distribution and environmental control together with the necessary levels of resilience and security required to provide the desired service availability Information Technology Equipment (ITE): equipment providing data storage, processing and transport services for subsequent distribution by Network Telecommunications Equipment (NTE) Last Operators Connection point (LOC): interface to the fixed access transport networks of one or more operators from which cabling is routed to a customer network Network Data Centre (NDC): data centre embedded within the core network NOTE: An NDC of a cable access network may be termed a master head-end. Network Distribution Node (NDN): grouping of Network Telecommunications Equipment (NTE) within the boundaries of an access network providing distribution of service from an Operator Site (OS) NOTE: Where all the NTE at a given location is under common governance, any supporting infrastructure for power distribution and environmental control together with the necessary levels of resilience and security required to provide the desired service availability is included as part of the NDN. Network Functions Virtualisation (NFV): principle of separating network functions from the hardware they run on by using virtual hardware abstraction NOTE: Source: ETSI GS NFV 003 [i.5]. Network Functions Virtualisation Infrastructure (NFVI): totality of all hardware and software components which build up the environment in which VNFs are deployed NOTE: Source: ETSI GS NFV 003 [i.5] modified. Network Interface Unit (NIU): principal device within customer premises allowing user access to the services provided by the cable access network Network Telecommunications Equipment (NTE): equipment between the boundaries of, and dedicated to providing direct connection to, core and/or access networks Operator Site (OS): premises accommodating Network Telecommunications Equipment (NTE) providing direct connection to the core and access networks and which may also accommodate Information Technology Equipment (ITE) NOTE 1: An OS that is only connected to the core network is considered as a Network Data Centre (NDC). NOTE 2: An OS of a cable access network may be termed a local head-end. SIST EN 303 471 V1.1.1:2019
ETSI ETSI EN 303 471 V1.1.1 (2019-01) 9 Repeater (R): device with two RF ports, both of which are intended to be connected to antennas,
...
ETSI EN 303 471 V1.1.1 (2019-01)
EUROPEAN STANDARD
Environmental Engineering (EE);
Energy Efficiency measurement methodology and metrics
for Network Function Virtualisation (NFV)
---------------------- Page: 1 ----------------------
2 ETSI EN 303 471 V1.1.1 (2019-01)
Reference
DEN/EE-EEPS26
Keywords
energy efficiency, energy management, ICT, NFV
ETSI
650 Route des 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 à but non lucratif enregistrée à la
Sous-Préfecture 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 electronic versions and/or in print. 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 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
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, 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.
© ETSI 2019.
All rights reserved.
TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.
TM TM
3GPP and LTE are trademarks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
oneM2M™ logo is a trademark of ETSI registered for the benefit of its Members and
of the oneM2M Partners.
®
GSM and the GSM logo are trademarks registered and owned by the GSM Association.
ETSI
---------------------- Page: 2 ----------------------
3 ETSI EN 303 471 V1.1.1 (2019-01)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
Introduction . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definitions, symbols and abbreviations . 7
3.1 Definitions . 7
3.2 Symbols . 9
3.3 Abbreviations . 9
4 Network Function Virtualisation (NFV) configurations . 10
4.1 Access network . 10
4.2 NFV and energy consumption . 11
5 NFV KPIs for energy efficiency . 11
5.1 Energy efficiency based on data transfer (KPI ) . 11
EE-transfer
5.1.1 General . 11
5.1.2 Data volume measured in bits . 12
5.1.3 Data volume measured in packets . 12
5.2 NFV effectiveness . 12
6 Measurement conditions. 12
6.1 General requirements . 12
6.1.1 Measurement period . 12
6.1.2 Detailed treatment of assessment periods . 14
6.2 Renewable energy . 15
6.3 Measurement and test equipment . 15
7 Measurement methods . 15
7.1 Measurement method for KPI and KPI . 15
EE-bit_transfer EE-packet_transfer
7.1.1 Definition of data volume . 15
7.1.2 Formulae . 16
7.1.3 Definition of terms . 16
8 Measurement report . 16
Annex A (informative): History of network schematics . 17
Annex B (informative): Milestones for NFV effectiveness . 18
B.1 Introduction . 18
B.2 Assessment . 18
B.3 Comparisons . 19
History . 20
ETSI
---------------------- Page: 3 ----------------------
4 ETSI EN 303 471 V1.1.1 (2019-01)
List of figures
Figure 1: Updated schematic of fixed and mobile access networks .10
Figure 2: Schematic of KPI .11
EE-transfer
Figure 3: Schematic showing application of T , T and Δt .13
KPI REPEAT
Figure 4: Detailed treatment of assessment timing.14
Figure A.1: Schematic of fixed and mobile communication networks (June 2011) .17
ETSI
---------------------- Page: 4 ----------------------
5 ETSI EN 303 471 V1.1.1 (2019-01)
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 European Standard (EN) has been produced by ETSI Technical Committee Environmental Engineering (EE).
National transposition dates
Date of adoption of this EN: 1 January 2019
Date of latest announcement of this EN (doa): 30 April 2019
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 October 2019
Date of withdrawal of any conflicting National Standard (dow): 31 October 2019
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.
Introduction
The present document specifies the method and metrics to determine the energy efficiency of operational Network
Function Virtualisation (NFV) applications and their associated infrastructure.
Any such implementation of NFV within the access network served is addressed by the general engineering and
associated energy management KPIs of the access network itself as described in ETSI EN 305 200-2-2 [i.2], ETSI
EN 305 200-2-3 [i.3] and ETSI GR NFV 001 [i.4].
ETSI
---------------------- Page: 5 ----------------------
6 ETSI EN 303 471 V1.1.1 (2019-01)
1 Scope
The present document specifies the method and metrics to determine the energy efficiency of operational Network
Function Virtualisation (NFV) applications and their associated infrastructure when that infrastructure is implemented
outside the boundaries of the access fixed, cable and mobile networks which they serve.
The present document:
• Extends the Objective KPIs of ETSI EN 305 200-2-2 [i.2] (fixed access networks) and ETSI
EN 305 200-2-3 [i.3] (mobile access networks) to assess the impact of NFV when applied to those networks as
described in ETSI GR NFV 001 [i.4].
• Does not consider any assessment of energy saved by the implementation of NFV as there can be no time-
stamped comparison of an operational infrastructure from which functions have been removed to a virtualized
environment.
NOTE: In an ICT network (e.g. a fixed access network) comprising many Network Distribution Nodes (NDNs)
with different loading levels it is not clear that there will always be an energy consumption benefit - the
more relevant benefit being network and operational flexibility (such as reduced maintenance or increased
reliability).
The present document:
• Does not address the operational energy efficiency of specific Information Technology Equipment (ITE) such
as servers which may provide NFV facilities. Other ETSI EN documents (e.g. ETSI EN 303 470 [i.1]) have
been prepared to address such factors.
• Does not specify any assessment of the overall effectiveness of an NFV implementation although it contains
information in an informative annex regarding the technical milestones that would be required for this to be
addressed in a future revision of the present document.
The KPIs specified are primarily intended for trend analysis - not to enable comparison between individual
implementations of NFV unless the conditions of operation are "similar".
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 ES 202 336-12: "Environmental Engineering (EE); Monitoring and control interface for
infrastructure equipment (power, cooling and building environment systems used in
telecommunication networks); Part 12: ICT equipment power, energy and environmental
parameters monitoring information model".
ETSI
---------------------- Page: 6 ----------------------
7 ETSI EN 303 471 V1.1.1 (2019-01)
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 EN 303 470: "Environmental Engineering (EE); Energy Efficiency measurement
methodology and metrics for servers".
[i.2] ETSI EN 305 200-2-2: "Access, Terminals, Transmission and Multiplexing (ATTM); Energy
management; Operational infrastructures; Global KPIs; Part 2: Specific requirements;
Sub-part 2: Fixed broadband access networks".
[i.3] ETSI EN 305 200-2-3: "Access, Terminals, Transmission and Multiplexing (ATTM); Energy
management; Operational infrastructures; Global KPIs; Part 2: Specific requirements;
Sub-part 3: Mobile broadband access networks".
[i.4] ETSI GR NFV 001: "Network Functions Virtualisation (NFV); Use Cases".
[i.5] ETSI GS NFV 003: "Network Functions Virtualisation (NFV); Terminology for Main Concepts in
NFV".
[i.6] ETSI GS NFV-TST 008: "Network Functions Virtualisation (NFV) Release 2; Testing; NFVI
Compute and Network Metrics Specification".
[i.7] ISO/IEC 17788: "Information technology -- Cloud computing -- Overview and vocabulary".
[i.8] Mandate M/462: "Standardisation mandate addressed to CEN, CENELEC and ETSI in the field of
ICT to enable efficient energy use in fixed and mobile information and communication networks".
[i.9] CEN-CENELEC-ETSI (12-2011): "Framework Document for ESO Response to EU Mandate
M/462".
NOTE: Available at
https://portal.etsi.org/Portals/0/TBpages/ee/Docs/ESO%20response%20to%20M462%20phase%201%20.
pdf.
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
Base Station (BS): radio access network component which serves one or more radio cells and interfaces the user
terminal (through air interface) and a wireless network infrastructure
Base Station (BS) site: Network Distribution Node (NDN) which accommodates a Base Station (BS)
Cloud Service Customer (CSC): entity responsible for operation of a network services for cloud service users to
consume
NOTE: Source: ISO/IEC 17788 [i.7] modified.
Cloud Service Provider (CSP): entity which makes cloud services available
NOTE: Source: ISO/IEC 17788 [i.7] modified.
ETSI
---------------------- Page: 7 ----------------------
8 ETSI EN 303 471 V1.1.1 (2019-01)
cloud service user: end user, or applications operating on their behalf, using cloud services
NOTE: Source: ISO/IEC 17788 [i.7] modified.
core network: functional elements (that is equipment and infrastructure) that enable communication between Operator
Sites (OSs) or equivalent ICT sites
Customer Premises (CP): any location which is the sole responsibility of the customer
energy efficiency: relation between the useful output (telecom service, etc.) and energy consumption
Fibre Node (FN): device which performs a media conversion between an optical fibre cable link and a coaxial cable
link in a cable access network
Head-End (HE): facility for receiving television signals for processing and distribution over a cable access network
ICT equipment: equipment providing data storage, processing and transport services
NOTE: A combination of Information Technology Equipment and Network Telecommunications Equipment.
ICT site: site containing structures or group of structures dedicated to the accommodation, interconnection and
operation of ICT equipment together with all the facilities and infrastructures for power distribution and environmental
control together with the necessary levels of resilience and security required to provide the desired service availability
Information Technology Equipment (ITE): equipment providing data storage, processing and transport services for
subsequent distribution by Network Telecommunications Equipment (NTE)
Last Operators Connection point (LOC): interface to the fixed access transport networks of one or more operators
from which cabling is routed to a customer network
Network Data Centre (NDC): data centre embedded within the core network
NOTE: An NDC of a cable access network may be termed a master head-end.
Network Distribution Node (NDN): grouping of Network Telecommunications Equipment (NTE) within the
boundaries of an access network providing distribution of service from an Operator Site (OS)
NOTE: Where all the NTE at a given location is under common governance, any supporting infrastructure for
power distribution and environmental control together with the necessary levels of resilience and security
required to provide the desired service availability is included as part of the NDN.
Network Functions Virtualisation (NFV): principle of separating network functions from the hardware they run on by
using virtual hardware abstraction
NOTE: Source: ETSI GS NFV 003 [i.5].
Network Functions Virtualisation Infrastructure (NFVI): totality of all hardware and software components which
build up the environment in which VNFs are deployed
NOTE: Source: ETSI GS NFV 003 [i.5] modified.
Network Interface Unit (NIU): principal device within customer premises allowing user access to the services
provided by the cable access network
Network Telecommunications Equipment (NTE): equipment between the boundaries of, and dedicated to providing
direct connection to, core and/or access networks
Operator Site (OS): premises accommodating Network Telecommunications Equipment (NTE) providing direct
connection to the core and access networks and which may also accommodate Information Technology Equipment
(ITE)
NOTE 1: An OS that is only connected to the core network is considered as a Network Data Centre (NDC).
NOTE 2: An OS of a cable access network may be termed a local head-end.
ETSI
---------------------- Page: 8 ----------------------
9 ETSI EN 303 471 V1.1.1 (2019-01)
Repeater (R): device with two RF ports, both of which are intended to be connected to antennas, which is capable of
receiving, amplifying and transmitting simultaneously in one direction a signal in a base station's transmit band and in
the other direction a signal in the corresponding base station's receive band
Terminal Equipment (TE): principal device within customer premises allowing user access to the services provided
by the fixed access network
User Equipment (UE): device allowing user access to the services provided by the mobile access network
NOTE: Examples of user equi
...
Draft ETSI EN 303 471 V1.0.0 (2018-10)
EUROPEAN STANDARD
Environmental Engineering (EE);
Energy Efficiency measurement methodology and metrics
for Network Function Virtualisation (NFV)
---------------------- Page: 1 ----------------------
2 Draft ETSI EN 303 471 V1.0.0 (2018-10)
Reference
DEN/EE-EEPS26
Keywords
energy efficiency, energy management, ICT, NFV
ETSI
650 Route des 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 à but non lucratif enregistrée à la
Sous-Préfecture 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 electronic versions and/or in print. 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 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
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, 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.
© ETSI 2018.
All rights reserved.
TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.
TM TM
3GPP and LTE are trademarks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
oneM2M logo is protected for the benefit of its Members.
®
GSM and the GSM logo are trademarks registered and owned by the GSM Association.
ETSI
---------------------- Page: 2 ----------------------
3 Draft ETSI EN 303 471 V1.0.0 (2018-10)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
Introduction . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definitions, symbols and abbreviations . 7
3.1 Definitions . 7
3.2 Symbols . 9
3.3 Abbreviations . 9
4 Network Function Virtualisation (NFV) configurations . 10
4.1 Access network . 10
4.2 NFV and energy consumption . 11
5 NFV KPIs for energy efficiency . 11
5.1 Energy efficiency based on data transfer (KPI ) . 11
EE-transfer
5.1.1 General . 11
5.1.2 Data volume measured in bits . 12
5.1.3 Data volume measured in packets . 12
5.2 NFV effectiveness . 12
6 Measurement conditions. 12
6.1 General requirements . 12
6.1.1 Measurement period . 12
6.1.2 Detailed treatment of assessment periods . 14
6.2 Renewable energy . 15
6.3 Measurement and test equipment . 15
7 Measurement methods . 15
7.1 Measurement method for KPI and KPI . 15
EE-bit_transfer EE-packet_transfer
7.1.1 Definition of data volume . 15
7.1.2 Formulae . 16
7.1.3 Definition of terms . 16
8 Measurement report . 16
Annex A (informative): History of network schematics . 17
Annex B (informative): Milestones for NFV effectiveness . 18
B.1 Introduction . 18
B.2 Assessment . 18
B.3 Comparisons . 19
History . 20
ETSI
---------------------- Page: 3 ----------------------
4 Draft ETSI EN 303 471 V1.0.0 (2018-10)
List of figures
Figure 1: Updated schematic of fixed and mobile access networks .10
Figure 2: Schematic of KPI .11
EE-transfer
Figure 3: Schematic showing application of T , T and Δt .13
KPI REPEAT
Figure 4: Detailed treatment of assessment timing.14
ETSI
---------------------- Page: 4 ----------------------
5 Draft ETSI EN 303 471 V1.0.0 (2018-10)
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 draft European Standard (EN) has been produced by ETSI Technical Committee Environmental Engineering (EE),
and is now submitted for the combined Public Enquiry and Vote phase of the ETSI standards EN Approval Procedure.
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 6 months after doa
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.
Introduction
The present document specifies the method and metrics to determine the energy efficiency of operational Network
Function Virtualisation (NFV) applications and their associated infrastructure.
Any such implementation of NFV within the access network served is addressed by the general engineering and
associated energy management KPIs of the access network itself as described in ETSI EN 305 200-2-2 [i.2], ETSI
EN 305 200-2-3 [i.3] and ETSI GR NFV 001 [i.4].
ETSI
---------------------- Page: 5 ----------------------
6 Draft ETSI EN 303 471 V1.0.0 (2018-10)
1 Scope
The present document specifies the method and metrics to determine the energy efficiency of operational Network
Function Virtualisation (NFV) applications and their associated infrastructure when that infrastructure is implemented
outside the boundaries of the access fixed, cable and mobile networks which they serve.
The present document:
• Extends the Objective KPIs of ETSI EN 305 200-2-2 [i.2] (fixed access networks) and ETSI
EN 305 200-2-3 [i.3] (mobile access networks) to assess the impact of NFV when applied to those networks as
described in ETSI GR NFV 001 [i.4].
• Does not consider any assessment of energy saved by the implementation of NFV as there can be no time-
stamped comparison of an operational infrastructure from which functions have been removed to a virtualized
environment.
NOTE: In an ICT network (e.g. a fixed access network) comprising many Network Distribution Nodes (NDNs)
with different loading levels it is not clear that there will always be an energy consumption benefit - the
more relevant benefit being network and operational flexibility (such as reduced maintenance or increased
reliability).
The present document:
• Does not address the operational energy efficiency of specific Information Technology Equipment (ITE) such
as servers which may provide NFV facilities. Other ETSI EN documents (e.g. ETSI EN 303 470 [i.1]) have
been prepared to address such factors.
• Does not specify any assessment of the overall effectiveness of an NFV implementation although it contains
information in an informative annex regarding the technical milestones that would be required for this to be
addressed in a future revision of the present document.
The KPIs specified are primarily intended for trend analysis - not to enable comparison between individual
implementations of NFV unless the conditions of operation are "similar".
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 ES 202 336-12: "Environmental Engineering (EE); Monitoring and control interface for
infrastructure equipment (power, cooling and building environment systems used in
telecommunication networks); Part 12: ICT equipment power, energy and environmental
parameters monitoring information model".
ETSI
---------------------- Page: 6 ----------------------
7 Draft ETSI EN 303 471 V1.0.0 (2018-10)
2.2 Informative references
The following referenced documents are not necessary for the application of the present document but they assist the
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 EN 303 470: "Environmental Engineering (EE); Energy Efficiency measurement
methodology and metrics for servers".
[i.2] ETSI EN 305 200-2-2: "Access, Terminals, Transmission and Multiplexing (ATTM); Energy
management; Operational infrastructures; Global KPIs; Part 2: Specific requirements;
Sub-part 2: Fixed broadband access networks".
[i.3] ETSI EN 305 200-2-3: "Access, Terminals, Transmission and Multiplexing (ATTM); Energy
management; Operational infrastructures; Global KPIs; Part 2: Specific requirements;
Sub-part 3: Mobile broadband access networks".
[i.4] ETSI GR NFV 001: "Network Functions Virtualisation (NFV); Use Cases".
[i.5] ETSI GS NFV 003: "Network Functions Virtualisation (NFV); Terminology for Main Concepts in
NFV".
[i.6] ETSI GS NFV-TST 008: "Network Functions Virtualisation (NFV) Release 2; Testing; NFVI
Compute and Network Metrics Specification".
[i.7] ISO/IEC 17788: "Information technology -- Cloud computing -- Overview and vocabulary".
[i.8] Mandate M/462: "Standardisation mandate addressed to CEN, CENELEC and ETSI in the field of
ICT to enable efficient energy use in fixed and mobile information and communication networks".
[i.9] CEN-CENELEC-ETSI (12-2011): "Framework Document for ESO Response to EU Mandate
M/462".
NOTE: Available at
https://portal.etsi.org/Portals/0/TBpages/ee/Docs/ESO%20response%20to%20M462%20phase%201%20.
pdf.
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
Base Station (BS): radio access network component which serves one or more radio cells and interfaces the user
terminal (through air interface) and a wireless network infrastructure
Base Station (BS) site: Network Distribution Node (NDN) which accommodates a Base Station (BS)
Cloud Service Customer (CSC): entity responsible for operation of a network services for cloud service users to
consume
NOTE: Source: ISO/IEC 17788 [i.7] modified.
ETSI
---------------------- Page: 7 ----------------------
8 Draft ETSI EN 303 471 V1.0.0 (2018-10)
Cloud Service Provider (CSP): entity which makes cloud services available
NOTE: Source: ISO/IEC 17788 [i.7] modified.
cloud service user: end user, or applications operating on their behalf, using cloud services
NOTE: Source: ISO/IEC 17788 [i.7] modified.
core network: functional elements (that is equipment and infrastructure) that enable communication between Operator
Sites (OSs) or equivalent ICT sites
Customer Premises (CP): any location which is the sole responsibility of the customer
energy efficiency: relation between the useful output (telecom service, etc.) and energy consumption
Fibre Node (FN): device which performs a media conversion between an optical fibre cable link and a coaxial cable
link in a cable access network
Head-End (HE): facility for receiving television signals for processing and distribution over a cable access network
ICT equipment: equipment providing data storage, processing and transport services
NOTE: A combination of Information Technology Equipment and Network Telecommunications Equipment.
ICT site: site containing structures or group of structures dedicated to the accommodation, interconnection and
operation of ICT equipment together with all the facilities and infrastructures for power distribution and environmental
control together with the necessary levels of resilience and security required to provide the desired service availability
Information Technology Equipment (ITE): equipment providing data storage, processing and transport services for
subsequent distribution by Network Telecommunications Equipment (NTE)
Last Operators Connection point (LOC): interface to the fixed access transport networks of one or more operators
from which cabling is routed to a customer network
Network Data Centre (NDC): data centre embedded within the core network
NOTE: An NDC of a cable access network may be termed a master head-end.
Network Distribution Node (NDN): grouping of Network Telecommunications Equipment (NTE) within the
boundaries of an access network providing distribution of service from an Operator Site (OS)
NOTE: Where all the NTE at a given location is under common governance, any supporting infrastructure for
power distribution and environmental control together with the necessary levels of resilience and security
required to provide the desired service availability is included as part of the NDN.
Network Functions Virtualisation (NFV): principle of separating network functions from the hardware they run on by
using virtual hardware abstraction
NOTE: Source: ETSI GS NFV 003 [i.5].
Network Functions Virtualisation Infrastructure (NFVI): totality of all hardware and software components which
build up the environment in which VNFs are deployed
NOTE: Source: ETSI GS NFV 003 [i.5] modified.
Network Interface Unit (NIU): principal device within customer premises allowing user access to the services
provided by the cable access network
Network Telecommunications Equipment (NTE): equipment between the boundaries of, and dedicated to providing
direct connection to, core and/or access networks
Operator Site (OS): premises accommodating Network Telecommunications Equipment (NTE) providing direct
connection to the core and access networks and which may also accommodate Information Technology Equipment
(ITE)
NOTE 1: An OS that is only connected to the core network is considered as a Network Data Centre (NDC).
ETSI
---------------------- Page: 8 ----------------------
9 Draft ETSI EN 303 471 V1.0.0 (2018-10)
NOTE 2: An OS of a cable access network may be termed a local head-end.
Repeater (R): device with two RF ports, both of which are intended to be connected to antennas, which is capable of
receiving, amplifying and transmitting simultaneously in one direction a signal in a base station's transmit band and in
the other direction a signal in the corresponding base station's receive band
Terminal Equipment (TE): principal device within customer premises allowing user access to the services provided
by the fixed access network
User Equipment (UE): device allowing user access to the services provided by the mobile access network
NOTE: Examples of user equipment include a mobile phone, tablet, data modem and connected devices such as
meter or actuator.
3.2 Symbols
For the purposes of the present document, the following symbols apply:
Δt the maximum time variation between measurement points of the different Objective KPIs within a
given Global KPI
k assessment period index
data_volume volume of data transported to and from the NFVI during an assessment period
NFVI
EC energy consumption of NFVI during an assessment period
NFVI
KPI KPI of NFVI energy efficiency based on data volume
EE-transfer
T period of time over which KPI is assessed
KPI EE-transfer
T the time between which the KPI are assessed to determine relevant trend information
REPEAT
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
BS Base Station
CP Customer Premises
CSC Cloud Service Customer
CSP Cloud Service Provider
FN Fibre Node
HE Head-End
ICT Information and Communications Technology
ITE Information Technology Equipment
KPI Key Performance Indicator
LOC Last Operator Connection Point
LON Last Operator Node
NDC Network Data Centre
NDN Network Distribution Node
NFV Network Function Virtualisation
NFVI Network Function Virtualisation Infrastructure
NIU Network Interface Unit
NTE Network Telecommunications Equipment
ODC Operator Data Centre
OS Operator Site
R Repeater
TE Terminal Equipment
UE User Equipment
ETSI
---------------------- Page: 9 ----------------------
10 Draft ETSI EN 303 471 V1.0.0 (2018-10)
4 Network Function Virtualisation (NFV) configurations
4.1 Access network
Figure 1 shows schematics of the following access networks:
• fixed access network;
• cable access network;
• terrestrial and satellite mobile access networks.
Figure 1 has been updated since the original schematic included in the initial response [i.9] to the Mandate M/462 [i.8].
The original schematic and details of the changes are listed in annex A.
Core network Access network
Distribution network
Transport network
Customer premises (CP)
Fixed access
infrastructure
2 “End-use IT” equipment
OS LOC TE
NDN NDN
Non “IT End-use” equipment
Cable access NDN NDN NDN
infrastructure
“End-use IT” equipment
FN NIU
1 2
NDC OS
Satellite UE
Satellite
mobile access infrastructure
“End-use IT” equipment
BS
2 Terrestrial
OS R UE
site
mobile access infrastructure
NDN
NDN NDN
Backhaul network
Access network
1
For cable access networks this is termed “Master head-end/OS”
2
For cable access networks this is termed “Local head-end/OS”
Figure 1: Updated schematic of fixed and mobile access networks
It is necessary to distinguish between the access provider, who is responsible for the design, operation and maintenance
of the access network, and the service provider that provides the service carried to the subscriber by the access network.
These two entities may be different. A given access network may support multiple service providers.
The Network Function Virtualisation Infrastructure (NFVI) may be accommodated within a Network Data Centre
(NDC), Operator Site (OS) or NDN under the common governance with the access network to which the functions
rd
apply or in 3 party ICT sites or Customer Premises (CP).The roles within the NFV ecosystem are further designated as
Cloud Service Provider (CSP) and Cloud Service Customer (CSC). In the context of the present document CSP will be
concerned with the energy efficiency of the NFVI, while the CSC will be concerned with the energy efficiency of the
NFV.
Figure 1 shows certain Network Distribution Nodes (NDNs) within dashed boxes to indicate that they are:
• optional;
• not restricted in number to the configurations shown.
ETSI
---------------------- Page: 10 ----------------------
11 Draft ETSI EN 303 471 V1.0.0 (2018-10)
4.2 NFV and energy consumption
The virtualisation of network functions of fixed, mobile and cable access networks may provide an opportunity for
improved energy management of those networks.
Use cases of NFV are described in ETSI GR NFV 001 [i.4].
The centralization of network functions within the hardware resources of an NFVI, comprising Information Technology
Equipment (ITE) that is either general purpose or application-specific to those functions, results in potential reduction
of energy consumption (as one of many possible operational advantages). However, in a given access network
comprising many NDNs with different loading levels it is not clear that there will always be an energy consumption
benefit - the more relevant benefit being network flexibility.
The NFV process removes energy consumption of NTE equipment at the OS and NDNs of the fixed and mobile access
networks and relocates consumption to the NFVI. This would initially appear to result in improvement in the KPIs for
energy management defined in ETSI EN 305 200-2-2 [i.2] and ETSI EN 305 200-2-3 [i.3].
However, ETSI EN 305 200-2-2 [i.2] and ETSI EN 305 200-2-3 [i.3] require the hardware resources of the NFVI to be
accommodated in such a manner to allow its energy consumption to be measured (as is also required by the present
document) and included in any assessment of the KPI of the access network.
5 NFV KPIs for energy efficiency
5.1 Energy efficiency based on data transfer (KPI )
EE-transfer
5.1.1 General
The present document specifies two variants of KPI (KPI and KPI ) which are measures
EE-transfer EE-bit_transfer EE-packet_transfer
of the data volume transferred to and from the NFVI per unit of energy consumed by the NFVI as shown schematically
in Figure 2.
The determination of the effectiveness of such NFVI in effecting a reduction of energy consumption depend upon
knowledge of the energy consumption of the NFVI and data volume transmitted and received by the NTE with the
NFVI.
NFVI hardware resources
ITE NTE
Data volume
Compute Storage Network
Energy
Figure 2: Schematic of KPIEE-transfer
KPI and KPI do not take account of:
EE-bit_transfer EE-packet_transfer
• the energy consumption involved in the transport of the data to and from the NFVI beyond the physical
interface of Figure 2;
ETSI
Non-renewable
Renewable
---------------------- Page: 11 ----------------------
12 Draft ETSI EN 303 471 V1.0.0 (2018-10)
• the energy consumption of any processing of the data (e.g. routing, etc.) beyond the physical interface of
Figure 2.
5.1.2 Data volume measured in bits
KPIEE-bit_transfer is based on the data volume defined by the arithmetic sum of Layer 2 payload content of the number of
successfully transmitted and received bits.
NOTE: This is founded on the Network-02 metric described in ETSI GS NFV-TST 008 [i.6].
5.1.3 Data volume measured in packets
KPI is based on the data volume defined by the arithmetic sum of successfully transmitted and received
EE-packet_transfer
packets.
NOTE: This is founded on the Network-01 metric described in ETSI GS NFV-TST 008 [i.6].
5.2 NFV effectiveness
The approach of clause 5.1 does not assess the "effectiveness" of the NFV functions. The necessary milestones to
achieve this are described in annex B.
6 Measurement conditions
6.1 General requirements
6.1.1 Measurement period
The energy consumption and data volume used to produce a value for the variant of KPI shall be measured as
EE-transfer
consumption or transfer of energy and data during a defined and common time period T
...
SLOVENSKI STANDARD
oSIST prEN 303 471 V1.0.0:2018
01-december-2018
2NROMVNLLQåHQLULQJ (( 0HWRGRORJLMDPHUMHQMDHQHUJLMVNHXþLQNRYLWRVWLLQPHULWYH
]DYLUWXDOL]DFLMRRPUHåQLKIXQNFLM 1)9
Environmental Engineering (EE) - Energy Efficiency measurement methodology and
metrics for Network Function Virtualisation (NFV)
Ta slovenski standard je istoveten z: ETSI EN 303 471 V1.0.0 (2018-10)
ICS:
19.040 Preskušanje v zvezi z Environmental testing
okoljem
27.015 (QHUJLMVNDXþLQNRYLWRVW Energy efficiency. Energy
2KUDQMDQMHHQHUJLMHQD conservation in general
VSORãQR
oSIST prEN 303 471 V1.0.0:2018 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
---------------------- Page: 1 ----------------------
oSIST prEN 303 471 V1.0.0:2018
---------------------- Page: 2 ----------------------
oSIST prEN 303 471 V1.0.0:2018
Draft ETSI EN 303 471 V1.0.0 (2018-10)
EUROPEAN STANDARD
Environmental Engineering (EE);
Energy Efficiency measurement methodology and metrics
for Network Function Virtualisation (NFV)
---------------------- Page: 3 ----------------------
oSIST prEN 303 471 V1.0.0:2018
2 Draft ETSI EN 303 471 V1.0.0 (2018-10)
Reference
DEN/EE-EEPS26
Keywords
energy efficiency, energy management, ICT, NFV
ETSI
650 Route des 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 à but non lucratif enregistrée à la
Sous-Préfecture 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 electronic versions and/or in print. 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 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
https://portal.etsi.org/TB/ETSIDeliverableStatus.aspx
If you find errors in the present document, please send your comment to one of the following services:
https://portal.etsi.org/People/CommiteeSupportStaff.aspx
Copyright Notification
No part may be reproduced or utilized in any form or by any means, electronic or mechanical, 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.
© ETSI 2018.
All rights reserved.
TM TM TM
DECT , PLUGTESTS , UMTS and the ETSI logo are trademarks of ETSI registered for the benefit of its Members.
TM TM
3GPP and LTE are trademarks of ETSI registered for the benefit of its Members and
of the 3GPP Organizational Partners.
oneM2M logo is protected for the benefit of its Members.
®
GSM and the GSM logo are trademarks registered and owned by the GSM Association.
ETSI
---------------------- Page: 4 ----------------------
oSIST prEN 303 471 V1.0.0:2018
3 Draft ETSI EN 303 471 V1.0.0 (2018-10)
Contents
Intellectual Property Rights . 5
Foreword . 5
Modal verbs terminology . 5
Introduction . 5
1 Scope . 6
2 References . 6
2.1 Normative references . 6
2.2 Informative references . 7
3 Definitions, symbols and abbreviations . 7
3.1 Definitions . 7
3.2 Symbols . 9
3.3 Abbreviations . 9
4 Network Function Virtualisation (NFV) configurations . 10
4.1 Access network . 10
4.2 NFV and energy consumption . 11
5 NFV KPIs for energy efficiency . 11
5.1 Energy efficiency based on data transfer (KPI ) . 11
EE-transfer
5.1.1 General . 11
5.1.2 Data volume measured in bits . 12
5.1.3 Data volume measured in packets . 12
5.2 NFV effectiveness . 12
6 Measurement conditions. 12
6.1 General requirements . 12
6.1.1 Measurement period . 12
6.1.2 Detailed treatment of assessment periods . 14
6.2 Renewable energy . 15
6.3 Measurement and test equipment . 15
7 Measurement methods . 15
7.1 Measurement method for KPI and KPI . 15
EE-bit_transfer EE-packet_transfer
7.1.1 Definition of data volume . 15
7.1.2 Formulae . 16
7.1.3 Definition of terms . 16
8 Measurement report . 16
Annex A (informative): History of network schematics . 17
Annex B (informative): Milestones for NFV effectiveness . 18
B.1 Introduction . 18
B.2 Assessment . 18
B.3 Comparisons . 19
History . 20
ETSI
---------------------- Page: 5 ----------------------
oSIST prEN 303 471 V1.0.0:2018
4 Draft ETSI EN 303 471 V1.0.0 (2018-10)
List of figures
Figure 1: Updated schematic of fixed and mobile access networks .10
Figure 2: Schematic of KPI .11
EE-transfer
Figure 3: Schematic showing application of T , T and Δt .13
KPI REPEAT
Figure 4: Detailed treatment of assessment timing.14
ETSI
---------------------- Page: 6 ----------------------
oSIST prEN 303 471 V1.0.0:2018
5 Draft ETSI EN 303 471 V1.0.0 (2018-10)
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 draft European Standard (EN) has been produced by ETSI Technical Committee Environmental Engineering (EE),
and is now submitted for the combined Public Enquiry and Vote phase of the ETSI standards EN Approval Procedure.
Proposed national transposition dates
Date of latest announcement of this EN (doa): 3 months after ETSI publication
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 6 months after doa
Date of withdrawal of any conflicting National Standard (dow): 6 months after doa
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.
Introduction
The present document specifies the method and metrics to determine the energy efficiency of operational Network
Function Virtualisation (NFV) applications and their associated infrastructure.
Any such implementation of NFV within the access network served is addressed by the general engineering and
associated energy management KPIs of the access network itself as described in ETSI EN 305 200-2-2 [i.2], ETSI
EN 305 200-2-3 [i.3] and ETSI GR NFV 001 [i.4].
ETSI
---------------------- Page: 7 ----------------------
oSIST prEN 303 471 V1.0.0:2018
6 Draft ETSI EN 303 471 V1.0.0 (2018-10)
1 Scope
The present document specifies the method and metrics to determine the energy efficiency of operational Network
Function Virtualisation (NFV) applications and their associated infrastructure when that infrastructure is implemented
outside the boundaries of the access fixed, cable and mobile networks which they serve.
The present document:
• Extends the Objective KPIs of ETSI EN 305 200-2-2 [i.2] (fixed access networks) and ETSI
EN 305 200-2-3 [i.3] (mobile access networks) to assess the impact of NFV when applied to those networks as
described in ETSI GR NFV 001 [i.4].
• Does not consider any assessment of energy saved by the implementation of NFV as there can be no time-
stamped comparison of an operational infrastructure from which functions have been removed to a virtualized
environment.
NOTE: In an ICT network (e.g. a fixed access network) comprising many Network Distribution Nodes (NDNs)
with different loading levels it is not clear that there will always be an energy consumption benefit - the
more relevant benefit being network and operational flexibility (such as reduced maintenance or increased
reliability).
The present document:
• Does not address the operational energy efficiency of specific Information Technology Equipment (ITE) such
as servers which may provide NFV facilities. Other ETSI EN documents (e.g. ETSI EN 303 470 [i.1]) have
been prepared to address such factors.
• Does not specify any assessment of the overall effectiveness of an NFV implementation although it contains
information in an informative annex regarding the technical milestones that would be required for this to be
addressed in a future revision of the present document.
The KPIs specified are primarily intended for trend analysis - not to enable comparison between individual
implementations of NFV unless the conditions of operation are "similar".
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 ES 202 336-12: "Environmental Engineering (EE); Monitoring and control interface for
infrastructure equipment (power, cooling and building environment systems used in
telecommunication networks); Part 12: ICT equipment power, energy and environmental
parameters monitoring information model".
ETSI
---------------------- Page: 8 ----------------------
oSIST prEN 303 471 V1.0.0:2018
7 Draft ETSI EN 303 471 V1.0.0 (2018-10)
2.2 Informative references
The following referenced documents are not necessary for the application of the present document but they assist the
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 EN 303 470: "Environmental Engineering (EE); Energy Efficiency measurement
methodology and metrics for servers".
[i.2] ETSI EN 305 200-2-2: "Access, Terminals, Transmission and Multiplexing (ATTM); Energy
management; Operational infrastructures; Global KPIs; Part 2: Specific requirements;
Sub-part 2: Fixed broadband access networks".
[i.3] ETSI EN 305 200-2-3: "Access, Terminals, Transmission and Multiplexing (ATTM); Energy
management; Operational infrastructures; Global KPIs; Part 2: Specific requirements;
Sub-part 3: Mobile broadband access networks".
[i.4] ETSI GR NFV 001: "Network Functions Virtualisation (NFV); Use Cases".
[i.5] ETSI GS NFV 003: "Network Functions Virtualisation (NFV); Terminology for Main Concepts in
NFV".
[i.6] ETSI GS NFV-TST 008: "Network Functions Virtualisation (NFV) Release 2; Testing; NFVI
Compute and Network Metrics Specification".
[i.7] ISO/IEC 17788: "Information technology -- Cloud computing -- Overview and vocabulary".
[i.8] Mandate M/462: "Standardisation mandate addressed to CEN, CENELEC and ETSI in the field of
ICT to enable efficient energy use in fixed and mobile information and communication networks".
[i.9] CEN-CENELEC-ETSI (12-2011): "Framework Document for ESO Response to EU Mandate
M/462".
NOTE: Available at
https://portal.etsi.org/Portals/0/TBpages/ee/Docs/ESO%20response%20to%20M462%20phase%201%20.
pdf.
3 Definitions, symbols and abbreviations
3.1 Definitions
For the purposes of the present document, the following terms and definitions apply:
Base Station (BS): radio access network component which serves one or more radio cells and interfaces the user
terminal (through air interface) and a wireless network infrastructure
Base Station (BS) site: Network Distribution Node (NDN) which accommodates a Base Station (BS)
Cloud Service Customer (CSC): entity responsible for operation of a network services for cloud service users to
consume
NOTE: Source: ISO/IEC 17788 [i.7] modified.
ETSI
---------------------- Page: 9 ----------------------
oSIST prEN 303 471 V1.0.0:2018
8 Draft ETSI EN 303 471 V1.0.0 (2018-10)
Cloud Service Provider (CSP): entity which makes cloud services available
NOTE: Source: ISO/IEC 17788 [i.7] modified.
cloud service user: end user, or applications operating on their behalf, using cloud services
NOTE: Source: ISO/IEC 17788 [i.7] modified.
core network: functional elements (that is equipment and infrastructure) that enable communication between Operator
Sites (OSs) or equivalent ICT sites
Customer Premises (CP): any location which is the sole responsibility of the customer
energy efficiency: relation between the useful output (telecom service, etc.) and energy consumption
Fibre Node (FN): device which performs a media conversion between an optical fibre cable link and a coaxial cable
link in a cable access network
Head-End (HE): facility for receiving television signals for processing and distribution over a cable access network
ICT equipment: equipment providing data storage, processing and transport services
NOTE: A combination of Information Technology Equipment and Network Telecommunications Equipment.
ICT site: site containing structures or group of structures dedicated to the accommodation, interconnection and
operation of ICT equipment together with all the facilities and infrastructures for power distribution and environmental
control together with the necessary levels of resilience and security required to provide the desired service availability
Information Technology Equipment (ITE): equipment providing data storage, processing and transport services for
subsequent distribution by Network Telecommunications Equipment (NTE)
Last Operators Connection point (LOC): interface to the fixed access transport networks of one or more operators
from which cabling is routed to a customer network
Network Data Centre (NDC): data centre embedded within the core network
NOTE: An NDC of a cable access network may be termed a master head-end.
Network Distribution Node (NDN): grouping of Network Telecommunications Equipment (NTE) within the
boundaries of an access network providing distribution of service from an Operator Site (OS)
NOTE: Where all the NTE at a given location is under common governance, any supporting infrastructure for
power distribution and environmental control together with the necessary levels of resilience and security
required to provide the desired service availability is included as part of the NDN.
Network Functions Virtualisation (NFV): principle of separating network functions from the hardware they run on by
using virtual hardware abstraction
NOTE: Source: ETSI GS NFV 003 [i.5].
Network Functions Virtualisation Infrastructure (NFVI): totality of all hardware and software components which
build up the environment in which VNFs are deployed
NOTE: Source: ETSI GS NFV 003 [i.5] modified.
Network Interface Unit (NIU): principal device within customer premises allowing user access to the services
provided by the cable access network
Network Telecommunications Equipment (NTE): equipment between the boundaries of, and dedicated to providing
direct connection to, core and/or access networks
Operator Site (OS): premises accommodating Network Telecommunications Equipment (NTE) providing direct
connection to the core and access networks and which may also accommodate Information Technology Equipment
(ITE)
NOTE 1: An OS that is only connected to the core network is considered as a Network Data Centre (NDC).
ETSI
---------------------- Page: 10 ----------------------
oSIST prEN 303 471 V1.0.0:2018
9 Draft ETSI EN 303 471 V1.0.0 (2018-10)
NOTE 2: An OS of a cable access network may be termed a local head-end.
Repeater (R): device with two RF ports, both of which are intended to be connected to antennas, which is capable of
receiving, amplifying and transmitting simultaneously in one direction a signal in a base station's transmit band and in
the other direction a signal in the corresponding base station's receive band
Terminal Equipment (TE): principal device within customer premises allowing user access to the services provided
by the fixed access network
User Equipment (UE): device allowing user access to the services provided by the mobile access network
NOTE: Examples of user equipment include a mobile phone, tablet, data modem and connected devices such as
meter or actuator.
3.2 Symbols
For the purposes of the present document, the following symbols apply:
Δt the maximum time variation between measurement points of the different Objective KPIs within a
given Global KPI
k assessment period index
data_volume volume of data transported to and from the NFVI during an assessment period
NFVI
EC energy consumption of NFVI during an assessment period
NFVI
KPI KPI of NFVI energy efficiency based on data volume
EE-transfer
T period of time over which KPI is assessed
KPI EE-transfer
T the time between which the KPI are assessed to determine relevant trend information
REPEAT
3.3 Abbreviations
For the purposes of the present document, the following abbreviations apply:
BS Base Station
CP Customer Premises
CSC Cloud Service Customer
CSP Cloud Service Provider
FN Fibre Node
HE Head-End
ICT Information and Communications Technology
ITE Information Technology Equipment
KPI Key Performance Indicator
LOC Last Operator Connection Point
LON Last Operator Node
NDC Network Data Centre
NDN Network Distribution Node
NFV Network Function Virtualisation
NFVI Network Function Virtualisation Infrastructure
NIU Network Interface Unit
NTE Network Telecommunications Equipment
ODC Operator Data Centre
OS Operator Site
R Repeater
TE Terminal Equipment
UE User Equipment
ETSI
---------------------- Page: 11 ----------------------
oSIST prEN 303 471 V1.0.0:2018
10 Draft ETSI EN 303 471 V1.0.0 (2018-10)
4 Network Function Virtualisation (NFV) configurations
4.1 Access network
Figure 1 shows schematics of the following access networks:
• fixed access network;
• cable access network;
• terrestrial and satellite mobile access networks.
Figure 1 has been updated since the original schematic included in the initial response [i.9] to the Mandate M/462 [i.8].
The original schematic and details of the changes are listed in annex A.
Core network Access network
Distribution network
Transport network
Customer premises (CP)
Fixed access
infrastructure
2 “End-use IT” equipment
OS LOC TE
NDN NDN
Non “IT End-use” equipment
Cable access NDN NDN NDN
infrastructure
“End-use IT” equipment
FN NIU
1 2
NDC OS
Satellite UE
Satellite
mobile access infrastructure
“End-use IT” equipment
BS
2 Terrestrial
OS R UE
site
mobile access infrastructure
NDN
NDN NDN
Backhaul network
Access network
1
For cable access networks this is termed “Master head-end/OS”
2
For cable access networks this is termed “Local head-end/OS”
Figure 1: Updated schematic of fixed and mobile access networks
It is necessary to distinguish between the access provider, who is responsible for the design, operation and maintenance
of the access network, and the service provider that provides the service carried to the subscriber by the access network.
These two entities may be different. A given access network may support multiple service providers.
The Network Function Virtualisation Infrastructure (NFVI) may be accommodated within a Network Data Centre
(NDC), Operator Site (OS) or NDN under the common governance with the access network to which the functions
rd
apply or in 3 party ICT sites or Customer Premises (CP).The roles within the NFV ecosystem are further designated as
Cloud Service Provider (CSP) and Cloud Service Customer (CSC). In the context of the present document CSP will be
concerned with the energy efficiency of the NFVI, while the CSC will be concerned with the energy efficiency of the
NFV.
Figure 1 shows certain Network Distribution Nodes (NDNs) within dashed boxes to indicate that they are:
• optional;
• not restricted in number to the configurations shown.
ETSI
---------------------- Page: 12 ----------------------
oSIST prEN 303 471 V1.0.0:2018
11 Draft ETSI EN 303 471 V1.0.0 (2018-10)
4.2 NFV and energy consumption
The virtualisation of network functions of fixed, mobile and cable access networks may provide an opportunity for
improved energy management of those networks.
Use cases of NFV are described in ETSI GR NFV 001 [i.4].
The centralization of network functions within the hardware resources of an NFVI, comprising Information Technology
Equipment (ITE) that is either general purpose or application-specific to those functions, results in potential reduction
of energy consumption (as one of many possible operational advantages). However, in a given access network
comprising many NDNs with different loading levels it is not clear that there will always be an energy consumption
benefit - the more relevant benefit being network flexibility.
The NFV process removes energy consumption of NTE equipment at the OS and NDNs of the fixed and mobile access
networks and relocates consumption to the NFVI. This would initially appear to result in improvement in the KPIs for
energy management defined in ETSI EN 305 200-2-2 [i.2] and ETSI EN 305 200-2-3 [i.3].
However, ETSI EN 305 200-2-2 [i.2] and ETSI EN 305 200-2-3 [i.3] require the hardware resources of the NFVI to be
accommodated in such a manner to allow its energy consumption to be measured (as is also required by the present
document) and included in any assessment of the KPI of the access network.
5 NFV KPIs for energy efficiency
5.1 Energy efficiency based on data transfer (KPI )
EE-transfer
5.1.1 General
The present document specifies two variants of KPI (KPI and KPI ) which are measures
EE-transfer EE-bit_transfer EE-packet_transfer
of the data volume transferred to and from the NFVI per unit of energy consumed by the NFVI as shown schematically
in Figure 2.
The determination of the effectiveness of such NFVI in effecting a reduction of energy consumption depend upon
knowledge of the energy consumption of the NFVI and data volume transmitted and received by the NTE with the
NFVI.
NFVI hardware resources
ITE NTE
Data volume
Compute Storage Network
Energy
Figure 2: Schematic of KPIEE-transfer
KPI and KPI do not take account of:
EE-bit_transfer EE-packet_transfer
• the energy consumption involved in the transport of the data to and from the NFVI beyond the physical
interface of Figure 2;
ETSI
Non-renewable
Renewable
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.