1、INTERNATIONAL TELECOMMUNICATION UNION ITU-T TELECOMMUNICATION STANDARDIZATION SECTOR OF ITU X.171 (03/2000) SERIES X: DATA NETWORKS AND OPEN SYSTEM CO M M U N I CAT I O N S Public data networks - Maintenance Network-network management services for data networks ITU-T Recommendation X.171 (Formerly C
2、CITT Recommendation) ITU-T X-SERIES RECOMMENDATIONS DATA NETWORKS AND OPEN SYSTEM COMMUNICATIONS PUBLIC DATA NETWONS X.l-X.19 Services and facilities X.20-X.49 Interfaces Transmission, signalling and switching X.50-X.89 X.90-X. 149 Network aspects Maintenance X.150-X.179 Administrative arrangements
3、X. 180-X.199 Model and notation X.200-X.209 Service definitions X.2 10-X.2 19 X.220-X.229 Connection-mode protocol specifications Connectionless-mode protocol specifications X.230-X.239 PICS proformas X.240-X.259 Protocol Identification X.260-X.269 Security Protocols X.270-X.279 Layer Managed Object
4、s X.280-X.289 Conformance testing X.290-X.299 General X.300-X.349 Satellite data transmission systems X.350-X.369 MESSAGE HANDLING SYSTEMS X.400-X.499 DIRECTORY X.500-X.599 OS1 NETWORKING AND SYSTEM ASPECTS Networking X.600-X.629 Efficiency X.630-X.639 Quality of service X.640-X.649 Naming, Addressi
5、ng and Registration X.650-X.679 Abstract Syntax Notation One (ASN. 1) X.680-X.699 Systems Management fkamework and architecture X.700-X.709 Management Communication Service and Protocol X.7 10-X.719 X.720-X.729 Structure of Management Information x.730-x.799 SECURITY X. 800-X.849 OS1 APPLICATIONS Co
6、mmitment, Concurrency and Recovery X.850-X.859 Transaction processing X.860-X.879 Remote operations X.880-X.899 OPEN DISTRIBUTED PROCESSING X.900-X.999 OPEN SYSTEMS INTERCONNECTION INTERWORKING BETWEEN NETWORKS IP-based networks x.370-x.399 OS1 MANAGEMENT Management functions and ODMA functions For
7、further details, please refer to the list of ITU-T Recommendations. ITU-T Recommendation X.171 Network-network management services for data networks Summary This Recommendation defines management services exchanged at the boundary between two networks based on the Network-Network Management (NNM) ar
8、chitecture defined in ITU-T X. 170. The defined management services are generic and can be applied to many kinds of service networks. They are described irrespective of underlying management protocols. Source ITU-T Recommendation X. 17 1 was prepared by ITU-T Study Group 7 (1 997-2000) and approved
9、under the WTSC Resolution 1 procedure on 3 1 March 2000. FOREWORD The International Telecommunication Union (ITU) is the United Nations specialized agency in the field of telecommunications. The ITU Telecommunication Standardization Sector (ITU-T) is a permanent organ of ITU. ITU-T is responsible fo
10、r studying technical, operating and tariff questions and issuing Recommendations on them with a view to standardizing telecommunications on a worldwide basis. The World Telecommunication Standardization Conference (WTSC), which meets every four years, establishes the topics for study by the ITU-T st
11、udy groups which, in turn, produce Recommendations on these topics. The approval of ITU-T Recommendations is covered by the procedure laid down in WTSC Resolution 1. In some areas of information technology which fall within ITU-Ts purview, the necessary standards are prepared on a collaborative basi
12、s with IS0 and IEC. NOTE In this Recommendation, the expression “Administration“ is used for conciseness to indicate both a telecommunication administration and a recognized operating agency. INTELLECTUAL PROPERTY RIGHTS ITU draws attention to the possibility that the practice or implementation of t
13、his 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 of the Recommendation development process. As of the da
14、te 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, implementors are cautioned that this may not represent the latest information and are therefore strongly urged to consul
15、t the TSB patent database. O ITU 2001 All rights reserved. No part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from ITU. CONTENTS Page 1 2 2.1 2.2 3 3.1 3.2 3.3 3.4 4 5 6
16、7 7.1 7.2 7.3 7.4 7.5 Scope References Identical Recommendations I International Standards . Additional references Definitions ITU-T X . 160 definitions . ITU-T X . 170 definitions . ITU-T X.701 Management Framework definitions . ITU-T X.710 CMIS definitions Abbreviations . Conventions Overview of N
17、NM Services NNM Services definitions Fault Management NNM Alarm Notification Service . NNM Fault History Service NNM Trouble Report Service . NNM Loop Set-up Service NNM Test Host Service NNM Protocol Monitoring Service . Configuration Management 7.1.1 7.1.2 7.1.3 7.1.4 7.1.5 7.1.6 7.2.1 NNM Configu
18、ration Inquiry Service 7.2.2 NNM Reconfiguration Service 7.2.3 NNM Ordering Service . NNM Inventory Inquiry Service . NNM Usage Metering Accounting Service 7.2.4 Accounting Management 7.3.1 Performance Management 7.4.1 NNM Traffic Information Service 7.4.2 CNM Quality of Service Information Service
19、7.4.3 NNM Network Statistics Service Security Management . 1 2 2 2 3 3 4 4 4 6 7 7 7 7 8 8 8 9 10 10 10 10 10 12 12 12 ITU-T Recommendation X.171 Network-network management services for data networks 1 Scope This Recommendation is one of a set of Recommendations dealing with Network-Network Manageme
20、nt Interface for data networks, which include: - the definition of the architectural framework to exchange management information for the provision of total Customer Network Management (CNM) Services by the camer accommodating its subscribers; the description of management services between two netwo
21、rks; the definition of management information elements, such as the managed object (MO) classes, attribute types, action types, notification types; compliance requirements placed on other ITU-T Recommendations definitions; - - - - conformance requirements. When a carrier provides CNM Services, there
22、 may be requirements to exchange management information or operations with its adjacent network related to internetwork communication. This Recommendation resolves such requirements for the provision of total management services at the NNM interface. This Recommendation makes use of the principles o
23、f the CNM and the TMN X-Interface. Within this overall framework, it meets requirements specific to data networks and the provision of CNM Services. 2 References llowing ITU-T Recommendations and other references contain provisions, which, through nce in this text, constitute provisions of this Reco
24、mmendation. At the time of publication, the ns indicated were valid. All Recommendations and other references are subject to revision; all of this Recommendation are therefore encouraged to investigate the possibility of applying the ecent edition of the Recommendations and other references listed b
25、elow. A list of the currently valid ITU-T Recommendations is regularly published. 2.1 Identical Recommendations I International Standards - ITU-T X.701 (1 997) 1 ISO/IEC 10040: 1998, Information technology - Open Systems Interconnection - Systems management overview. - ITU-T X.710 (1 997) I ISO/IEC
26、9595: 1998, Information technology - Open Systems Interconnection - Common Management Information Service. ITU-T X.711 (1997) I ISO/IEC 9596-1:1998, Information technology - Open Systems Interconnection - Common Management Information Protocol: Specification. - ITU-T X.721 (1992) I ISO/IEC 10165-2:
27、1992, Information technology - Open Systems Interconnection - Structure of management information: Definition of management information. ITU-T X.730 (1 992) I ISO/IEC 1 O1 64-1 : 1993, Information technology - Open Systems Interconnection - Systems Management: Object management function. - - ITU-T X
28、.73 1 (1 992) I ISO/IEC 1 O 164-2: 1993, Information technology - Open Systems Interconnection - Systems Management: State Management function. ITU-T X.742 (1 995) I ISO/IEC 1 O1 64-1 O: 1995, Information technology - Open Systems Interconnection - Systems management: Usage metering function for acc
29、ounting purposes. Additional references ITU-T M.301 O (1996), Principles for a telecommunications management network (TMN). ITU-T M.3020 (1 995), TMN interface specification methodology. ITU-T M.3400 (1997), TMN management functions. ITU-T 4.822 (1994), Stage 1, stage 2 and stage 3 description for t
30、he Q3 interface - Performance management. ITU-T X. 160 (1 996), Architecture for customer network management service for public data networks. ITU-T X. 161 (1 997), Definition of customer network management services for public data networks. ITU-T X. 170 (1 999), Network-network management architect
31、ure for data networks. ITU-T X.790 (1 999, Trouble management function for ITU-T applications. Definitions For the purpose of this Recommendation, the following definitions apply. 3.1 ITU-T X.160 definitions This Recommendation makes use of the following terms defined in ITU-T X. 160: - Customer Net
32、work Management (CNM); - CNM Service. 3.2 ITU-T X.170 definitions This Recommendation makes use of the following terms defined in ITU-T X. 170: - Network-Network Management (NNM); - NNM agent; - NNM Interface; - NNM manager; - NNM service provider. 3.3 This Recommendation makes use of the following
33、terms defined in ITU-T X.701 I ISO/IEC 10040: - agent; - managed object; - man age r ; - notification. ITU-T X.701 Management Framework definitions 3.4 ITU-T X.710 CMIS definitions This Recommendation makes use of the following terms defined in ITU-T X.710 I ISO/IEC 9595: - Attribute; - M-REPORT ope
34、ration. 4 Abbreviations This Recommendation uses the following abbreviations: CMISE CNM Customer Network Management ED1 Electronic Data Interchange EFD MO Managed Object NNM Network-Network Management NNMI Network-Network Management Interface ODMA Open Distributed Management Architecture QOS Quality
35、 of Service SNMP Simple Network Management Protocol Common Management Information Service Element Event Forwarding Discriminator (see also ITU-T X.72 1 I ISO/IEC 1 O1 65-2) 5 Conventions This Recommendation does not use any specific conventions. 6 Overview of NNM Services An NNM Service is a capabil
36、ity that is provided to a CNM Service provider across an NNM Interface. An NNM Service is provided, for example, by using CMISE, OS1 Systems Management Functions and appropriate management information. Alternatively, an NNM Service can be provided based on EDI, ODMA and SNMP. The services currently
37、defined in this Recommendation are those services which are considered to be of most importance for NNM service users, and are therefore priorities for provision. Further services are identified but are considered to be of lower priority. Other NNM Services may be added in fture and additional busin
38、ess requirements have been identified. The NNM Services defined in this Recommendation are, for convenience, classified into five groups: - Fault Management; - Accounting Management; - Configuration Management; - Performance Management; - Security Management. This Recommendation should be read in co
39、njunction with ITU-T X.170 which defines the NNM architecture. 7 NNM Services definitions The following clauses describe the NNM Services that may be provided across the NNM Interfaces. When the service is provided across the NNM Interface, the description is made in accordance with the TMN Interfac
40、e specification methodology, i.e., ITU-T M.3020. In the case of the CMISE-based interface, the term NNM Service is fully equivalent to the term TMN Management function set and the associated management information may be defined in another ITU-T Recommendation. When the service is provided across an
41、other interface, the terminology is not equivalent to CMISE, but made as similar as possible. 7.1 Fault Management 7.1.1 NNM Alarm Notification Service 7.1.1.1 Service definition The NNM Alarm Notification Service provides an NNM manager with the capability to be notified when a failure or event occ
42、urred which affects internetwork communication of subscribers. Alarms related to internetwork communication may be notified to the NNM manager fi-om the NNM agent in another network involved in it. 7.1.1.2 Functional description The following functions are associated with the Alarm Notification Serv
43、ice; some of them are optional, as shown in Table 1 : Report Alarm Function This function sends an NNM manager alarms related to internetwork communication. Alarms- may include communication faults, degradation of QoS, processing error of the network, equipment faults and abnormality of communicatio
44、n environment. The NNM agent informs the NNM manager of a spontaneous occurrence of an alarm. Report State Change Function This function sends an NNM manager event reports related to state change of internetwork communications of a specific NNM manager. The NNM agent informs the NNM manager of a sta
45、te change. Inhibit/Allow Alarm and State Change Reporting Function This function controls the suspension and resumption of alarm reporting by the NNM managers request. The NNM manager instructs the NNM agent to suspendresume alarm and state change reporting. Condition Alarm and State Change Reportin
46、g Function This function allows to modify criteria for reporting events (alarms or state change reports). Criteria may include the time of events, the type of events, the resource name from which alarms are emitted, the type of problem or cause, and severity of the fault. The NNM manager instructs t
47、he NNM agent to assign filtering criteria with the values it provides. Request Alarm and State Change Reporting Conditions Function This function allows the NNM manager to request the NNM agent to send the current assignment of the filtering criteria it specifies. 7.1.1.3 The NNM Alarm Notification
48、Service is described in Table 1. NNM Alarm Notification Service description Table UX.171 - NNM Alarm Notification Service Report Alarm Report State Change Inhibit/Allow Alarm and State Change Reporting Condition Alarm and State Change Reporting Request Alm and State Change Reporting Conditions I Fun
49、ction I Support I Purpose M Alarm Reporting O State Change Reporting O SuspendResume Alarm and State O InitiateDerminate Alarm and State Change Reporting Change Reporting Set the EFD attributes O Get the EFD attributes Alarm Reporting: There are several types of alarm notifications as defined in ITU-T - Communications alarm; - Quality of service alarm; - Processing error alarm; - Equipment alarm; - Environment alarm. The alarms provide a number of mandatory and optional parameters. For information, representative active parameters including the following: - Event type; - Event time; - P
