ETSI TS 128 515-2018 LTE Telecommunication management Fault Management (FM) for mobile networks that include virtualized network functions Requirements (V15 0 0 3GPP TS 28 515 vers.pdf

1、 ETSI TS 128 515 V15.0.0 (2018-06) LTE; Telecommunication management; Fault Management (FM) for mobile networks that include virtualized network functions; Requirements (3GPP TS 28.515 version 15.0.0 Release 15) TECHNICAL SPECIFICATION ETSI ETSI TS 128 515 V15.0.0 (2018-06)13GPP TS 28.515 version 15

2、.0.0 Release 15Reference RTS/TSGS-0528515vf00 Keywords LTE 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 Impor

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13、tion 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 Technical Specification (TS) has been produced by ETSI 3rd Generation Partnership Project (3GPP). The present document ma

14、y refer to technical specifications or reports using their 3GPP identities, UMTS identities or GSM identities. These should be interpreted as being references to the corresponding ETSI deliverables. The cross reference between GSM, UMTS, 3GPP and ETSI identities can be found under http:/webapp.etsi.

15、org/key/queryform.asp. 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).

16、“must“ and “must not“ are NOT allowed in ETSI deliverables except when used in direct citation. ETSI ETSI TS 128 515 V15.0.0 (2018-06)33GPP TS 28.515 version 15.0.0 Release 15Contents Intellectual Property Rights 2g3Foreword . 2g3Modal verbs terminology 2g3Foreword . 4g3Introduction 4g31 Scope 5g32

17、References 5g33 Definitions and abbreviations . 5g33.1 Definitions 5g33.2 Abbreviations . 5g34 Concepts and background 5g34.1 Fault Management in the context of NFV 5g35 Business level requirements . 6g35.1 Requirements 6g35.2 Actor roles 6g35.3 Telecommunications resources 6g35.4 High-level use cas

18、es . 7g35.4.1 NE alarm correlation in the context of NFV . 7g35.4.2 NFVI Maintenance coordination 7g36 Specification level requirements 8g36.1 Requirements 8g36.1.1 Requirements for Itf-N 8g36.1.2 Requirements for Os-Ma-nfvo 8g36.1.3 Requirements for Ve-Vnfm-em 8g36.1.4 Requirements for Ve-Vnfm-vnf

19、8g36.2 Actor roles 8g36.3 Telecommunications resources 8g36.4 Use cases 9g36.4.1 NE alarm correlation in the context of NFV . 9g36.4.2 VNF Healing through operation request to VNFM by EM 9g36.4.3 Virtualization-specific aspect failure detection and notification by VNFM . 10g36.4.4 Virtualization-spe

20、cific aspect failure detection and notification by EM . 11g36.4.5 NE alarm reporting in the context of NFV . 11g36.4.6 Virtualization-specific aspect failure notification by VNFM . 12g3Annex A (informative): Change history . 13g3History 14g3ETSI ETSI TS 128 515 V15.0.0 (2018-06)43GPP TS 28.515 versi

21、on 15.0.0 Release 15Foreword This Technical Specification has been produced by the 3rdGeneration Partnership Project (3GPP). The contents of the present document are subject to continuing work within the TSG and may change following formal TSG approval. Should the TSG modify the contents of the pres

22、ent document, it will be re-released by the TSG with an identifying change of release date and an increase in version number as follows: Version x.y.z where: x the first digit: 1 presented to TSG for information; 2 presented to TSG for approval; 3 or greater indicates TSG approved document under cha

23、nge control. y the second digit is incremented for all changes of substance, i.e. technical enhancements, corrections, updates, etc. z the third digit is incremented when editorial only changes have been incorporated in the document. Introduction The present document is part of a TS-family covering

24、the 3rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Telecommunication management, as identified below: TS 28.515 “Fault Management (FM) for mobile networks that include virtualized network functions; Requirements“. TS 28.516 “Fault Management (FM) for m

25、obile networks that include virtualized network functions; Procedures“. TS 28.517 “Fault Management (FM) for mobile networks that include virtualized network functions; Stage 2“. TS 28.518 “Fault Management (FM) for mobile networks that include virtualized network functions; Stage 3“. ETSI ETSI TS 1

26、28 515 V15.0.0 (2018-06)53GPP TS 28.515 version 15.0.0 Release 151 Scope The present document (together with the relevant requirements described in 2, 3, 4 and 5) specifies the requirements applicable to Fault Management (FM) of mobile networks that include virtualized network functions. 2 Reference

27、s The following documents contain provisions which, through reference in this text, constitute provisions of the present document. - References are either specific (identified by date of publication, edition number, version number, etc.) or non-specific. - For a specific reference, subsequent revisi

28、ons do not apply. - For a non-specific reference, the latest version applies. In the case of a reference to a 3GPP document (including a GSM document), a non-specific reference implicitly refers to the latest version of that document in the same Release as the present document. 1 3GPP TR 21.905: “Vo

29、cabulary for 3GPP Specifications“. 2 3GPP TS 28.500: “Telecommunication management; Management concept, architecture and requirements for mobile networks that include virtualized network functions“. 3 3GPP TS 32.101: “Telecommunication management; Principles and high level requirements“. 4 3GPP TS 3

30、2.102: “Telecommunication management; Architecture“. 5 3GPP TS 32.111-1: “Telecommunication management; Fault Management; Part 1: 3G fault management requirements“. 6 ETSI GS NFV-IFA 010 (V2.2.1): “Network Functions Virtualisation (NFV); Management and Orchestration; Functional Requirements Specific

31、ation“. 3 Definitions and abbreviations 3.1 Definitions For the purposes of the present document, the terms and definitions given in 3GPP TR 21.905 1 and in 3GPP TS 28.500 2 and the following apply. A term defined in the present document takes precedence over the definition of the same term, if any,

32、 in 3GPP TR 21.905 1 or in 3GPP TS 28.500 2. 3.2 Abbreviations For the purposes of the present document, the abbreviations given in 3GPP TR 21.905 1 and in 3GPP TS 28.500 2 and the following apply. An abbreviation defined in the present document takes precedence over the definition of the same abbre

33、viation, if any, in 3GPP TR 21.905 1 or in 3GPP TS 28.500 2. VM Virtual Machine vNIC virtual Network Interface Card vPORT virtual Port 4 Concepts and background 4.1 Fault Management in the context of NFV Fault Management functionality traditionally includes fault detection, generation of alarms, cle

34、aring of alarms, alarm forwarding and filtering, storage and retrieval of alarms, correlation of alarms and events, alarm root cause analysis and fault recovery. With introduction of virtualized network functions (VNFs) into mobile networks, Fault Management ETSI ETSI TS 128 515 V15.0.0 (2018-06)63G

35、PP TS 28.515 version 15.0.0 Release 15functionality is distributed over different functional blocks. These different functional blocks may be located at different levels such as NFV Infrastructure (NFVI) level, NE level, NFV Management and Orchestration level and 3GPP network management level. The d

36、ecoupling of software from hardware by means of virtualization changes the way in which the faults were managed in non-virtualized NE deployments: - Physical hardware faults of NFVI are detected by NFVI and corrected jointly with the support from NFV-MANO. Only information about those faults (e.g. f

37、aults corresponding to the virtualized resources) that affect the proper functioning of VNF needs to be provided to 3GPP management system. - VNF-related virtualized resource fault information needs to be sent from NFV-MANO to 3GPP management system, and then 3GPP management system can take some nec

38、essary actions. - VNF application fault information needs to be sent from the VNF instance to the corresponding 3GPP management system that is responsible for taking some necessary actions. - VNF virtualization-specific fault information is detected by VNF and needs to be sent from the VNF instance

39、to both the VNFM and the corresponding 3GPP management system so that they can take necessary actions accordingly. 5 Business level requirements 5.1 Requirements REQ-NFV_FM-CON-1 The faulty virtualization-specific aspect of a virtualized network function shall be able to be recovered. REQ-NFV_FM-CON

40、-2 3GPP management system shall be able to get VNF application fault reports about a faulty NE. REQ-NFV_FM-CON-3 3GPP management system shall be able to get VNF virtualization-related fault reports from NFV-MANO. REQ-NFV_FM-CON-4 The content of the fault information from VNF application fault report

41、s and VNF virtualization-related fault reports shall enable 3GPP management system to correlate VNF application fault(s) with VNF virtualization-related fault(s). REQ-NFV_FM-CON-5 EM shall be able to send to VNFM a request to recover the faulty virtualization-specific aspect of a virtualized network

42、 function. 5.2 Actor roles See actors and roles of each use case in clause 5.4. 5.3 Telecommunications resources See telecom resources of each use case in clause 5.4. ETSI ETSI TS 128 515 V15.0.0 (2018-06)73GPP TS 28.515 version 15.0.0 Release 155.4 High-level use cases 5.4.1 NE alarm correlation in

43、 the context of NFV Use Case Stage Evolution / Specification Related use Goal To correlate NE alarms in a mobile network that includes virtualized network functions. Actors and Roles 3GPP management system (EM, NM) correlates NE alarms. NFV MANO functional entity VNFM notifies virtualized resource a

44、larms to 3GPP management system. Telecom resources VNFM, 3GPP management system (EM, NM) Assumptions - 3GPP management system can get VNF application alarms of the faulty NE, and - VNFM can get virtualized resource alarms and identify the corresponding VNF instance. Pre conditions N/A Begins when Th

45、ere is a new failure which may impact the virtualized resource and the corresponding NE application. Step 1 (M) 3GPP management system gets VNF application alarm(s) of a faulty NE. VNFM gets virtualized resource alarm(s) and notifies the corresponding VNF instance related virtualized resource alarm(

46、s) to 3GPP management system. Step 2 (M) Based on the virtualized resource alarm(s) sent from VNFM and those VNF application alarms reported from NE, 3GPP management system makes alarm correlation. Ends when Ends when all mandatory steps identified above are successfully completed or when an excepti

47、on occurs. Exceptions One of the steps identified above fails. Post Conditions The virtualized resource alarm(s) and VNF application alarm(s) are correlated by 3GPP management system. Traceability REQ-MAMO_FM-CON-3, REQ-MAMO_FM-CON-4, REQ-MAMO_FM-CON-5 5.4.2 NFVI Maintenance coordination Use Case St

48、age Evolution / Specification Related use Goal To avoid the unwanted impact to VNF application from NFVI maintenance Actors and Roles NM, NFVO, VNFM, VIM Telecom resources NFVO, VNFM VIM, NFVI Assumptions There is an agreement that NFV-MANO system should get permission from NM before scheduled NFVI

49、maintenance, managed by NFV-MANO, can start. Pre conditions N/A Begins when NFVO receives a notification from VIM informing about NFVI maintenance impacting the VRs (Virtualised Resources) that are used by a NS instance (e.g. the subordinative VNF instances and Virtual Links). Step 1 (M) NFVO informs NM about the NFVI maintenance. Step 2 (M) NM confirms the NFVI maintenance positively or not positively. Step 3 (M) NFVO acts according to the response from NM. Ends when Ends when all mandatory steps identified above are successfully completed