Introduction to TMN Telecommunications Management Network Contents 1

Introduction to TMN Telecommunications Management Network

Contents 1. TMN Definition 2. TMN Functional Architecture 3. TMN Physical Architecture 4. Relationship Between TMN and OSI Systems Management 5. TMN Logical Layer Model 6. Key Technologies for TMN 7. Conclusions

Here We Are 1. Introduction 2. TMN Functional Architecture 3. TMN Physical Architecture 4. Relationship Between TMN and OSI Systems Management 5. TMN Logical Layer Model 6. Key Technologies for TMN 7. Concluding Remarks

TMN Definition Telecommunications Management Network : A TMN is a support network that interfaces to the telecommunications network to provide the means for transporting and processing Operations, Administration, Maintenance, Provisioning, and Management (OAM&P) information.

Relationship of TMN to Telecommunications Network OS: Operations System

TMN Definition v. TMN provides a framework for achieving interconnectivity and communication across heterogeneous operations systems and telecommunications networks. v. TMN was developed by the International Telecommunications Union (ITU) as an infrastructure to support management and deployment of dynamic telecommunications services.

TMN Recommendations M. 3000 series: TMN Overall Principles and Framework. M. 3000: Tutorial Introduction to TMN M. 3010: Principles for a TMN. M. 3020: TMN Interface Specification Methodology. M. 3100 series: TMN Models and Object Definitions. M. 3100: Generic Network Information Model. M. 3180: Catalogue of TMN Management Information. M. 3200 series: TMN Management Services. M. 3200: TMN Management Services: Overview. M. 3300 series: Aspects for workstations connected to TMN. M. 3300: TMN Management Capabilities presented at the F Interface. M. 3400 series: Management Functions supporting TMN Servic M. 3400: TMN Management Functions.

Other TMN Recommendations M. 60 Section 2: TMN Terminology & Definitions. Q. 811: Lower Layer Protocol Profiles for the Q 3 Interface. Q. 812: Upper Layer Protocol Profiles for the Q 3 Interface. Q. 821: Stage 2 and Stage 3 Descriptions for the Q 3 Interface -Alarm Surveillance. Q. 822: Stage 1, Stage 2 and Stage 3 Description for the Q 3 Interface - Performance Management. G. 773: Protocol Suite for Q Interface for Management for Transmission Systems. G. 774: SDH Management Information Model for the Network Element View.

Here We Are 1. Introduction 2. TMN Functional Architecture 3. TMN Physical Architecture 4. Relationship Between TMN and OSI Systems Management 5. TMN Logical Layer Model 6. Key Technologies for TMN 7. Concluding Remarks

TMN Functional Architecture TMN functional architecture is based on a number of TMN function blocks: OSF (Operations Systems Function) TMN MF (Mediation Function) WSF (Work Station Function) OSF WSF NEF (Network Element Function) MF QAF (Q Adaptor Function) QAF NEF

TMN Function Blocks Operations Systems Function (OSF) block: For monitoring/coordinating and/or controlling telecommunications functions including management functions. Network Element Function (NEF) block: For the purpose of being monitored and/or controlled. Workstation Function (WSF) block: For interpreting TMN information for the management information user. Support for interfacing to a human user.

TMN Function Blocks (cont. ) Mediation Function (MF) block: Acts on information passing between an OSF and NEF (or QAF) to achieve smooth and efficient communication. MF blocks may store, adapt, filter, threshold, and condense informatio Q Adaptor Function (QAF) block: To connect those non-TMN NEFs and OSFs to TMN. To translate between a TMN reference point and a non-TMN reference point (e. g. , proprietary).

Reference Points Reference point: Conceptual point of information exchange between non-overlapping management function blocks. TMN reference points: . q reference points - qx: Between NEF and MF, QAF and MF, MF and MF - q 3: Between NEF and OSF, QAF and OSF, MF and OSF, OSF and OSF . f reference points - Between WSF and OSF, WSF and MF

Reference Points (cont. ) non-TMN reference points: g reference points - Between human users and the WSF m reference points - Between QAF and non-TMN managed entities

Reference Points Between Management Function Blocks f m WSF f

Here We Are 1. Introduction 2. TMN Functional Architecture 3. TMN Physical Architecture 4. Relationship Between TMN and OSI Systems Management 5. TMN Logical Layer Model 6. Key Technologies for TMN 7. Concluding Remarks

TMN Physical Architecture The TMN is represented by several building blocks that provide an overall embodiment of the management issues and functions of TMN.

TMN Building Blocks Operations System (OS) The OS is the system performing OSFs. Mediation Device (MD) The MD is the device performing MFs. Q Adaptor (QA) The QA is a device which connects NEs or OSs with non-TMN compatibale interfaces to Qx or Q 3 interfaces. Network Element (NE) The NE is comprised of telecommunication equipment (in groups, parts, or the whole) and support equipment that

TMN Building Blocks (cont. ) Workstation (WS) The WS is the system performing WSFs. The WSFs translate information at the f reference point to a displayable format at the g reference point, and vice versa. Data Communication Network (DCN) The DCN is a communication network within a TMN which supports the data communication function (DCF). The DCN represents an implementation of the OSI layers 1 to 3.

TMN Standard Interfaces The interoperable interface defines the protocol suite and the messages carried by the protocol. Three TMN Standard Interfaces: Q interface, F interface, X interface TMN Standard Interfaces: Q interface, applied at q reference points Qx: is applied at the qx reference points. Q 3: is applied at the q 3 reference points.

TMN Standard Interfaces F interface, applied at f reference points F connects WSs to the OSF or MF through a DCN. X interface, applied at x reference points X interconnects two TMNs or interconnects a TMN with another management network which accommodates a TMN-like interface.

Relationship of TMN Interfaces to TMN Building Blocks TMN OS X/F/Q 3 DCN X F WS Q 3/F MD Q 3 QX DCN QX QA NE QA QX NE

Q 3 vs. Qx Interface

Here We Are 1. Introduction 2. TMN Functional Architecture 3. TMN Physical Architecture 4. Relationship Between TMN and OSI Systems Management 5. TMN Logical Layer Model 6. Key Technologies for TMN 7. Concluding Remarks

TMN vs. OSI Management 1. TMN follows OSI systems management concept. 2. TMN uses OSI Guidelines for the Definition of Managed Objects (GDMO) to define managed objects. (Management Information Modeling) 3. TMN uses OSI CMIS/CMIP to exchange management information. (Management Communication Protocol) 4. TMN uses OSI Systems Management Functions (SMF) and defines new management functions. (Systems Management Functions) 5. TMN may use FTAM for file transfer type service.

Telecommunications Management Services and Functions Telecommunications Management Services and Components Management of Transmission Paths Management of Switched Network Management of Customer Services Telecommunications Management Functions Provisioning Monitoring Fault correction Verification . . . OSI Systems Management Functions Log Control SMF Event Report SMF Object SMF . . . Accounting Meter SMF ACSE + ROSE + CMISE . . . Restoration

Here We Are 1. Introduction 2. TMN Functional Architecture 3. TMN Physical Architecture 4. Relationship Between TMN and OSI Systems Management 5. TMN Logical Layer Model 6. Key Technologies for TMN 7. Concluding Remarks

TMN Logical Layer Model TMN supplies a model of logical layers that define or suggest the management level for specific functionality. v v v Business Management Layer Service Management Layer Network Management Layer Element Management Layer Network Element Layer

TMN Logical Layer Model BML SML NML EML OS MD NEL Network OS MD for Network OS MD QA for Network OS Q-Adapter Network Element EML OS

BML & SML v BML – High-level planning, budgeting, goal setting, executive decisions, business level agreements (BLAs), etc. v SML – Uses information presented by NML to manage contracted service to existing and potential customers. – This is the basic point of contact with customers for provisioning, accounts, quality of service, and fault management. – The key point for interaction with service providers and with other administrative domains.

NML & EML v NML – NML has visibility of the entire network, based on the NE information presented by the EML OSs. – The NML manages individual NEs and all NEs as a group. – The NML coordinates all network activities and supports the demands of the SML. v EML – Manages each network element. – EML element managers, or OSs, are responsible for the TMN-manageable information in certain network elements.

NEL v NEL – The NEL presents the TMN-manageable information in an individual NE. – Both the Q-Adapter, which adapts between TMN and non-TMN information, and the NE are located in the NEL.

Here We Are 1. Introduction 2. TMN Functional Architecture 3. TMN Physical Architecture 4. Relationship Between TMN and OSI Systems Management 5. TMN Logical Layer Model 6. Key Technologies for TMN 7. Concluding Remarks

Key Technologies for TMN 1. Managed Object Modeling and Interpretation. 2. Underlying Management Communication Protocols (CMIS/P). 3. Management Platform Based on Standard OSI Systems Management Functions. 4. Interoperability Issues Due to the Permitted Options in OSI Protocols. 5. Object-Oriented Technology. 6. Distributed Processing Technology 7. Q Adaption of Existing Proprietary Management Applications. 8. Domain Knowledge in Telecommunications.

Here We Are 1. Introduction 2. TMN Functional Architecture 3. TMN Physical Architecture 4. Relationship Between TMN and OSI Systems Management 5. 6. 7. TMN Logical Layer Model Key Technologies for TMN Concluding Remarks

Concluding Remarks 1. Public telecommunication liberalization will lead to the demand of TMN compliant products. 2. Standardization of telecommunications network management is still in progress. 3. TMN will be adopted for the management of telecommunications network elements/equipment with new technology. (e. g. , SDH, ATM, B-ISDN, IN) 4. OSI management technology is the key to the success of TMN.