1、 International Telecommunication Union ITU-T M.3705TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU (03/2013) SERIES M: TELECOMMUNICATION MANAGEMENT, INCLUDING TMN AND NETWORK MAINTENANCE Integrated services digital networks Common management services Log management Protocol neutral requirements and
2、analysis Recommendation ITU-T M.3705 ITU-T M-SERIES RECOMMENDATIONS TELECOMMUNICATION MANAGEMENT, INCLUDING TMN AND NETWORK MAINTENANCE Introduction and general principles of maintenance and maintenance organization M.10M.299 International transmission systems M.300M.559 International telephone circ
3、uits M.560M.759 Common channel signalling systems M.760M.799 International telegraph systems and phototelegraph transmission M.800M.899 International leased group and supergroup links M.900M.999 International leased circuits M.1000M.1099 Mobile telecommunication systems and services M.1100M.1199 Int
4、ernational public telephone network M.1200M.1299 International data transmission systems M.1300M.1399 Designations and information exchange M.1400M.1999 International transport network M.2000M.2999 Telecommunications management network M.3000M.3599 Integrated services digital networks M.3600M.3999Co
5、mmon channel signalling systems M.4000M.4999 For further details, please refer to the list of ITU-T Recommendations. Rec. ITU-T M.3705 (03/2013) i Recommendation ITU-T M.3705 Common management services Log management Protocol neutral requirements and analysis Summary Recommendation ITU-T M.3705 prov
6、ides the requirements and analysis for one of the common management services log management. This Recommendation is a rewrite of Recommendation ITU-T X.735 under the new methodology specified in Recommendation ITU-T M.3020 to provide a protocol neutral information model for log management. History E
7、dition Recommendation Approval Study Group 1.0 ITU-T M.3705 2013-03-16 2 Keywords Common management service, log management. ii Rec. ITU-T M.3705 (03/2013) FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications, informatio
8、n and communication technologies (ICTs). The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible for studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwid
9、e basis. The World Telecommunication Standardization Assembly (WTSA), which meets every four years, establishes the topics for study by the ITU-T study groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSA
10、Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basis with ISO and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administra
11、tion and a recognized operating agency. Compliance with this Recommendation is voluntary. However, the Recommendation may contain certain mandatory provisions (to ensure, e.g., interoperability or applicability) and compliance with the Recommendation is achieved when all of these mandatory provision
12、s are met. The words “shall“ or some other obligatory language such as “must“ and the negative equivalents are used to express requirements. The use of such words does not suggest that compliance with the Recommendation is required of any party. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to th
13、e possibility that the practice or implementation of this Recommendation may involve the use of a claimed Intellectual Property Right. ITU takes no position concerning the evidence, validity or applicability of claimed Intellectual Property Rights, whether asserted by ITU members or others outside o
14、f the Recommendation development process. As of the date of approval of this Recommendation, ITU had not received notice of intellectual property, protected by patents, which may be required to implement this Recommendation. However, implementers are cautioned that this may not represent the latest
15、information and are therefore strongly urged to consult the TSB patent database at http:/www.itu.int/ITU-T/ipr/. ITU 2013 All rights reserved. No part of this publication may be reproduced, by any means whatsoever, without the prior written permission of ITU. Rec. ITU-T M.3705 (03/2013) iii Table of
16、 Contents Page 1 Scope 1 2 References. 1 3 Definitions 1 3.1 Terms defined elsewhere 1 3.2 Terms defined in this Recommendation . 2 4 Abbreviations and acronyms 2 5 Conventions 2 6 Requirements 2 6.1 Business level requirements . 3 7 Analysis 13 7.1 Concepts and background . 13 7.2 Information objec
17、t classes 14 7.3 Interface definition . 20 Bibliography. 24 Rec. ITU-T M.3705 (03/2013) 1 Recommendation ITU-T M.3705 Common management services Log management Protocol neutral requirements and analysis 1 Scope This Recommendation defines the requirements for basic log management which includes the
18、following: specify what to log, start/suspend/resume/stop logging, retrieve log records, and generate an alarm when encountering certain logging problems. The technique-specific and device-specific event and message logging will be derived from this Recommendation, and the generic logging management
19、 objects, attributes and operations will be reused. 2 References The following ITU-T Recommendations and other references contain provisions which, through reference in this text, constitute provisions of this Recommendation. At the time of publication, the editions indicated were valid. All Recomme
20、ndations and other references are subject to revision; users of this Recommendation are therefore encouraged to investigate the possibility of applying the most recent edition of the Recommendations and other references listed below. A list of the currently valid ITU-T Recommendations is regularly p
21、ublished. The reference to a document within this Recommendation does not give it, as a stand-alone document, the status of a Recommendation. ITU-T M.3020 Recommendation ITU-T M.3020 (2011), Management interface specification methodology. ITU-T M.3160 Recommendation ITU-T M.3160 (2008), Generic, pro
22、tocol-neutral management information model. ITU-T M.3700 Recommendation ITU-T M.3700 (2010), Common management services Object management Protocol neutral requirements and analysis. ITU-T M.3701 Recommendation ITU-T M.3701 (2010), Common management services State management Protocol neutral requirem
23、ents and analysis. ITU-T M.3702 Recommendation ITU-T M.3702 (2010), Common management services Notification management Protocol neutral requirements and analysis. ITU-T M.3703 Recommendation ITU-T M.3703 (2010), Common management services Alarm management Protocol neutral requirements and analysis.
24、ITU-T X.680 Recommendation ITU-T X.680 (2008) | ISO/IEC 8824-1:2008, Information Technology Abstract Syntax Notation One (ASN.1) Specification of basic notation. ITU-T X.701 Recommendation ITU-T X.701 (1997) | ISO/IEC 10040:1998, Information technology Open Systems Interconnection Systems management
25、 overview. ITU-T X.735 Recommendation ITU-T X.735 (1992) | ISO/IEC 10164-6:1993, Information Technology Open Systems Interconnection Systems Management: Log control function. 3 Definitions 3.1 Terms defined elsewhere This Recommendation uses the following term defined elsewhere: 2 Rec. ITU-T M.3705
26、(03/2013) 3.1.1 notification ITU-T X.701. 3.2 Terms defined in this Recommendation This Recommendation defines the following terms: 3.2.1 notification log: A managed resource in which notifications are stored. Notification logs contain notification log records. A notification log may represent a phy
27、sical or a logical/virtual storage, which may not be visible to a manager. 3.2.2 notification log record: A notification log record records track information about when a particular notification entered the notification log and the details of the notification. Each notification log record is associa
28、ted with one notification. 4 Abbreviations and acronyms This Recommendation uses the following abbreviations and acronyms: CORBA Common Object Request Broker Architecture DN Distinguished Name EMS Element Management System IOC Information Object Class IRP Integration Reference Point NE Network Eleme
29、nt NL Notification Log NM Network Manager NMS Network Management System NR Network Resource OS Operations System UML Unified Modelling Language XML extensible Markup Language 5 Conventions This Recommendation uses the conventions defined in ITU-T M.3020 for requirements capture and analysis. 6 Requi
30、rements A general-purpose notification logging mechanism is required to hold notifications related to different functional areas in the network. This service uses the following services and thus implicitly imports all the requirements defined therein: Notification management ITU-T M.3702 State manag
31、ement ITU-T M.3701 In addition, the following specific requirements apply for log management as specified in this and subsequent clauses. Rec. ITU-T M.3705 (03/2013) 3 6.1 Business level requirements 6.1.1 List of requirements 6.1.1.1 General requirements Identifier Definition REQ-LM-FUN-01 Any noti
32、fication log must be capable of storing all data related to any type of notification (i.e., any class which extends Notification as defined in ITU-T M.3702). REQ-LM-FUN-02 The notification log control service will allow the selection of notification log records that are to be logged by a management
33、system (NMS or EMS) in a new notification log or a particular existing notification log. REQ-LM-FUN-03 It will be possible to start and stop logging to a specific notification log or all notification logs. REQ-LM-FUN-04 The ability for a client system to modify the criteria used in logging notificat
34、ion records. REQ-LM-FUN-05 Specification of a mechanism to enable notification logging to be suspended and subsequently to be resumed. REQ-LM-FUN-06 The ability for a client system to retrieve and delete notification log records. REQ-LM-FUN-07 The ability for a client system to create and delete tho
35、se notification logs. REQ-LM-FUN-08 The ability to log partial notifications. REQ-LM-FUN-09 The manager may request a list of all log activities currently managed by the agent. The agent returns a list of notification log identifiers to the manager. The manager may then use these identifiers to quer
36、y a log or parts of it. REQ-LM-FUN-10 The agent will assign a unique identifier to each notification log whether created autonomously by the agent or on the request of a manager. REQ-LM-FUN-11 All notifications available at the agent for potential transmission shall be logged if requested by a start
37、 log request, irrespective of the notification subscriptions and filter settings. REQ-LM-FUN-12 The notification log record will contain a notification as specified by ITU-T M.3702. REQ-LM-FUN-13 The notification log record is time-stamped, allowing the operator to determine the time at which the no
38、tification log record was added to the notification log. REQ-LM-FUN-14 The agent should avoid the logging of notifications resulting from asynchronous alarm synchronization. 6.1.1.2 Status of the notification log state Identifier Definition REQ-LM-FUN-15 The ability for a client system to determine
39、whether the logging characteristics were modified or whether any notification log records have been lost. REQ-LM-FUN-16 The notification log management system must notify all interested OS about its current state. An event-based approach is used to update OS on the current state of the notification
40、log. To facilitate the notification of attribute or state changes, a notification log has the capability to generate such events according to the object management functions defined in ITU-T M.3700. REQ-LM-FUN-17 The notification log management system may also emit notification log creation and log
41、deletion notifications to signal the creation or deletion of a particular log according to the object management functions defined in ITU-T M.3700. 4 Rec. ITU-T M.3705 (03/2013) Identifier Definition REQ-LM-FUN-18 To notify OSs about the loss or imminent loss of notification log records, the system
42、is able to emit capacity threshold alarms as defined in ITU-T M.3703 that alert the subscribed OSs that a capacity threshold has been crossed in a particular notification log. This threshold value may indicate that the notification log is full and incoming notifications shall be dealt with in a pred
43、etermined manner set by an operator. REQ-LM-FUN-19 The system may emit other events to notify an OS of the completion of an I/O intensive operation, such as the deletion of notification log records. 6.1.1.3 Notification log/notification log record retrieval Identifier Definition REQ-LM-FUN-20 An OS
44、may retrieve notification log records by querying a particular notification log with a filter. The ability of an OS to export some subsets of notification logs maintained by itself to the W3C XML log format is for further study. 6.1.1.4 Notification log full action Identifier Definition REQ-LM-FUN-2
45、1 The OS must be able to set the behaviour of a notification log when it becomes full. Two actions are recommended, halt and wrap: A notification log that halts when full implies the agent should notify the OS by way of generating a capacity threshold alarm. New notifications, which should be logged
46、 according to the notification logs filter criteria, are discarded. This behaviour implies that the old notification log records are more important than new ones. An OS can set the behaviour of the notification log to wrap when full. In this case the notification log behaves like a circular buffer,
47、replacing the oldest notification log records with new ones. This behaviour implies that new notification log records are more important than old notification log records. 6.1.2 Actor roles The capabilities described in this Recommendation are available and relevant to all agents and managers. 6.1.3
48、 Telecommunication resources The log management functionality is applicable to all types of telecommunication resources. 6.1.4 High level use case diagrams The first overview use-case diagram in Figure 1 shows the overall interaction of the Notification log management function. Rec. ITU-T M.3705 (03
49、/2013) 5 M.3705(13)_F01ManageruseLog Management FSextendincludeObject Management FSincludeincludeincludeincludeincludeincludeincludeincludeextendextendextendFault Management FSNotification Management FSState Management FSNotify state of loggingResume loggingSuspend loggingModify logging criteriaLog Object Management FSDelete LogCreate Log Query list of logsLog Record Management FSincludeRetrieve Log recordsDelete Log recordNotify capacity Alarm notific
