ETSI GS NFV-IFA 027-2018 Network Functions Virtualisation (NFV) Release 2 Management and Orchestration Performance Measurements Specification (V2 4 1).pdf

1、 ETSI GS NFV-IFA 027 V2.4.1 (2018-05) Network Functions Virtualisation (NFV) Release 2; Management and Orchestration; Performance Measurements Specification Disclaimer The present document has been produced and approved by the Network Functions Virtualisation (NFV) ETSI Industry Specification Group

2、(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. G1G2G3G4G5G6G7G5G8G9G10G11G10G9G12G13G10G3G14G6ETSI ETSI GS NFV-IFA 027 V2.4.1 (2018-05) 2 Reference DGS/NFV-IFA027 Keywords management, MANO, meas

3、urement, NFV, performance 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 but non lucratif enregistre la Sous-Prfecture de Grasse (06) N 7803/88 Important notice The present document

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7、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

8、without the written authorization of ETSI. The copyright and the foregoing restriction extend to reproduction in all media. ETSI 2018. All rights reserved. DECTTM, PLUGTESTSTM, UMTSTMand the ETSI logo are trademarks of ETSI registered for the benefit of its Members. 3GPPTM and LTETMare trademarks of

9、 ETSI registered for the benefit of its Members and of the 3GPP Organizational Partners. oneM2M logo is protected for the benefit of its Members. GSMand the GSM logo are trademarks registered and owned by the GSM Association. ETSI ETSI GS NFV-IFA 027 V2.4.1 (2018-05) 3 Contents Intellectual Property

10、 Rights . 5G1Foreword 5G1Modal verbs terminology . 5G11 Scope . 6G12 References . 6G12.1 Normative references . 6G12.2 Informative references . 7G13 Definitions and abbreviations 7G13.1 Definitions . 7G13.2 Abbreviations 7G14 Overview . 7G14.1 Introduction . 7G14.2 Use cases . 8G14.2.1 Use case of v

11、irtual compute related measurements 8G14.2.2 Use case of network data volume related measurements . 8G14.3 Measurements received at VIM . 8G15 Performance measurement definition template . 8G16 Measured object types . 10G16.1 Introduction 10G16.2 Measured object type definitions 10G16.2.1 VirtualCom

12、pute.10G16.2.2 VNF 10G16.2.3 VNFC 11G16.2.4 VirtualNetwork .11G16.2.5 VirtualStorage .11G17 Performance measurements . 12G17.1 Performance measurements produced by VIM 12G17.1.1 Introduction .12G17.1.2 Mean virtual CPU usage .12G17.1.3 Peak virtual CPU usage.12G17.1.4 Mean memory usage .13G17.1.5 Pe

13、ak memory usage 13G17.1.6 Mean disk usage 14G17.1.7 Peak disk usage .14G17.1.8 Number of incoming bytes on virtual compute .15G17.1.9 Number of outgoing bytes on virtual compute 15G17.1.10 Number of incoming packets on virtual compute .16G17.1.11 Number of outgoing packets on virtual compute 17G17.1

14、.12 Number of incoming bytes of a virtual network .17G17.1.13 Number of outgoing bytes of a virtual network 18G17.1.14 Number of incoming packets of a virtual network 18G17.1.15 Number of outgoing packets of a virtual network .19G17.1.16 Mean usage of Virtualised storage resource .19G17.1.17 Peak us

15、age of Virtualised storage resource .20G17.2 Performance measurements produced by VNFM .20G17.2.1 Introduction .20G17.2.2 Mean virtual CPU usage of VNF/VNFC instance 20G17.2.3 Peak virtual CPU usage of VNF/VNFC instance 21G17.2.4 Mean memory usage of VNF/VNFC instance 22G17.2.5 Peak memory usage of

16、VNF/VNFC instance .22G17.2.6 Mean disk usage of VNF/VNFC instance .23G17.2.7 Peak disk usage of VNF/VNFC instance 24G1ETSI ETSI GS NFV-IFA 027 V2.4.1 (2018-05) 4 7.2.8 Number of incoming bytes of VNF internal CP .24G17.2.9 Number of outgoing bytes of VNF internal CP 25G17.2.10 Number of incoming pac

17、kets of VNF internal CP 25G17.2.11 Number of outgoing packets of VNF internal CP .26G17.2.12 Number of incoming bytes of VNF external CP .26G17.2.13 Number of outgoing bytes of VNF external CP 27G17.2.14 Number of incoming packets of VNF external CP .28G17.2.15 Number of outgoing packets of VNF exte

18、rnal CP 29G17.3 Performance measurements produced by NFVO .30G17.3.1 Introduction .30G17.3.2 Number of incoming bytes of SAP .30G17.3.3 Number of outgoing bytes of SAP 31G17.3.4 Number of incoming packets of SAP 32G17.3.5 Number of outgoing packets of SAP 33G1Annex A (informative): Mapping of TST 00

19、8 to OpenStackmeasurements . 34G1Annex B (informative): Security and Regulatory Concerns 35G1B.1 Risk analysis and assessment 35G1Annex C (informative): Authors Essential, or potentially Essential, IPRs notified to ETSI in respect of ETSI standards“, which is available from the ETSI Secretariat. Lat

20、est 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

21、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 propert

22、y of ETSI, and conveys no right to use or reproduce any trademark and/or tradename. Mention of those trademarks in the present document does not constitute an endorsement by ETSI of products, services or organizations associated with those trademarks. Foreword This Group Specification (GS) has been

23、produced by ETSI Industry Specification Group (ISG) Network Functions Virtualisation (NFV). Modal verbs terminology In the present document “shall“, “shall not“, “should“, “should not“, “may“, “need not“, “will“, “will not“, “can“ and “cannot“ are to be interpreted as described in clause 3.2 of the

24、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-IFA 027 V2.4.1 (2018-05) 6 1 Scope The present document specifies the performance measurements and use cases for descr

25、iptors and interfaces, including Or-Vnfm reference point, Ve-Vnfm reference point, Vi-Vnfm reference point, Or-Vi reference point, and Os-Ma-nfvo reference point, based on the performance metrics collected at NFVI. 2 References 2.1 Normative references References are either specific (identified by d

26、ate 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

27、 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 th

28、e present document. 1 ETSI GS NFV-IFA 005: “Network Functions Virtualisation (NFV) Release 2; Management and Orchestration; Or-Vi reference point - Interface and Information Model Specification“. 2 ETSI GS NFV-IFA 006: “Network Functions Virtualisation (NFV) Release 2; Management and Orchestration;

29、Vi-Vnfm reference point - Interface and Information Model Specification“. 3 ETSI GS NFV-IFA 008: “Network Functions Virtualisation (NFV) Release 2; Management and Orchestration; Ve-Vnfm reference point - Interface and Information Model Specification“. 4 ETSI GS NFV-IFA 011: “Network Functions Virtua

30、lisation (NFV) Release 2; Management and Orchestration; VNF Descriptor and Packaging Specification“. 5 ETSI GS NFV-IFA 014: “Network Functions Virtualisation (NFV) Release 2; Management and Orchestration; Network Service Templates Specification“. 6 ETSI GS NFV-SEC 004: “Network Functions Virtualisat

31、ion (NFV); NFV Security; Privacy and Regulation; Report on Lawful Interception Implications“. 7 ETSI GS NFV-SEC 006: “Network Functions Virtualisation (NFV); Security Guide; Report on Security Aspects and Regulatory Concerns“. 8 ETSI GS NFV-SEC 010: “Network Functions Virtualisation (NFV); NFV Secur

32、ity; Report on Retained Data problem statement and requirements“. 9 ETSI GS NFV-SEC 012: “Network Functions Virtualisation (NFV) Release 3; Security; System architecture specification for execution of sensitive NFV components“. 10 ETSI GS NFV-TST 008: “Network Functions Virtualisation (NFV) Release

33、2; Testing; NFVI Compute and Network Metrics Specification“. ETSI ETSI GS NFV-IFA 027 V2.4.1 (2018-05) 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 vers

34、ion 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

35、 not necessary for the application of the present document but they assist the user with regard to a particular subject area. i.1 Openstackmeasurements. NOTE: Available at https:/docs.openstack.org/ceilometer/pike/admin/telemetry-measurements.html i.2 ETSI GS NFV 003: “Network Functions Virtualisati

36、on (NFV); Terminology for Main Concepts in NFV“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions in ETSI GS NFV 003 i.2 and ETSI GS NFV-IFA 014 5 apply. NOTE: A term defined in the present document takes precedence over the definiti

37、on of the same term, if any, in ETSI GS NFV 003 i.2. 3.2 Abbreviations For the purposes of the present document, the abbreviations in ETSI GS NFV 003 i.2, ETSI GS NFV-IFA 014 5 and the following apply: NOTE: An abbreviation defined in the present document takes precedence over the definition of the

38、same abbreviation, if any, in ETSI GS NFV 003 i.2. OM Object Mapping SC Status Counter TF Transparent Forwarding 4 Overview 4.1 Introduction The present document specifies the performance measurements that are exposed on various NFV MANO reference points (e.g. Or-Vnfm, Ve-Vnfm-em, Vi-Vnfm, Or-Vi and

39、 Os-Ma-nfvo). ETSI GS NFV-TST 008 10 specifies the Network Function Virtualisation Infrastructure (NFVI) performance metrics that will be reported to Virtualised Infrastructure Manager (VIM). VIM processes the performance metrics received from NFVI to generate performance measurements to be sent to

40、NFV Orchestrator (NFVO) and VNF Manager (VNFM). VNFM and NFVO conduct further processing to generate performance measurements. ETSI ETSI GS NFV-IFA 027 V2.4.1 (2018-05) 8 4.2 Use cases 4.2.1 Use case of virtual compute related measurements Virtual compute related measurements are used to monitor the

41、 loading conditions of virtual compute resources that include memory and CPU. The measurements can be used as the triggers to the scale VNF operation (see clause 7.2.4 in ETSI GS NFV-IFA 008 3). When the measurement indicated that the virtualised resources are overloaded, it can trigger the scale ou

42、t operation. When the measurement indicated that the virtualised resources are underloaded, it can trigger the scale in operation. 4.2.2 Use case of network data volume related measurements Network data volume related measurements are used to measure the data volume of networking interfaces (see cla

43、use 7.1 in ETSI GS NFV-TST 008 10, including incoming/outgoing of IP data packets and IP data octets. These measurements provides the traffic condition of the network interfaces. When the traffic condition is too high, then it may request the application to take appropriate action. 4.3 Measurements

44、received at VIM Table 4.3-1 lists the measurements received at VIM to be used to define the performance measurements in clause 6. The measurements are derived from the performance metrics defined in ETSI GS NFV-TST 008 10). Table 4.3-1: Measurements received at VIM Measurements received at VIM Descr

45、iption cpu_utilization Measure the percentage of CPU utilization in the measurement interval that can be derived from Processor Utilization metric (see clause 6.6 in ETSI GS NFV-TST 008 10). memory_utilization Measure the percentage of memory utilization in the measurement interval that can be deriv

46、ed from the amount of memory used, which is the sum of Memory Buffered, Memory Cached, Memory Free, Memory Slab (see clause 8.6 in ETSI GS NFV-TST 008 10), and the amount of memory allocated. disk_utilization Measure the percentage of disk utilization. See Annex A for an example of the measurement m

47、apping from disk.usage and disk.allocation measurements. No disk metric is defined in ETSI GS NFV-TST 008 10, since the methods of measurement for storage systems vary widely and depend on the implementation (see clause 8.9 in ETSI GS NFV-TST 008 10). num_of_incoming_packets Measure the number of in

48、coming packets in the measurement interval that can be derived from received Packet Count metric (see clause 7.6 in ETSI GS NFV-TST 008 10). num_of_outgoing_packets Measure the number of outgoing packets in the measurement interval that can be derived from transmitted Packet Count metric (see clause

49、 7.6 in ETSI GS NFV-TST 008 10). num_of_incoming_bytes Measure the number of incoming octets in the measurement interval that can be derived from received Octet Count metric (see clause 7.6 in ETSI GS NFV-TST 008 10). num_of_outgoing_bytes Measure the number of outgoing octets in the measurement interval that can be derived from transmitted Octet Count metric (see clause 7.6 in ETSI GS NFV-TST 008 10). 5 Performance measurement definition template This clause defines the template to be used to describe the performa