Introduction to TMN- Telecommunications Management

Network

Yen-Cheng Chenhttp://www.im.tj.mcu.edu.tw/~ycchen/

yencheng@mcu.edu.tw

Contents

1. Introduction2. TMN Functional Architecture3. TMN Physical Architecture4. Relationship Between TMN and OSI

Systems Management5. TMN Logical Layer Model6. Key Technologies for TMN7. Conclusions

1.1. IntroductionIntroduction2. TMN Functional Architecture3. TMN Physical Architecture4. Relationship Between TMN and OSI

Systems Management5. TMN Logical Layer Model

6. Key Technologies for TMN7. Concluding Remarks

Here We Are

TMN Definition

Telecommunications Management Network :

A TMN is a support network that interfaces to thetelecommunications 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

TMN provides a framework for achieving interconnectivity and communication across heterogeneous operations systems and telecommunications networks.

TMN was developed by the International Telecommunications Union (ITU) as an infrastructure to support management and deployment of dynamic telecommunications services.

TMN 應用

– SDH同步數位光纖網路– ATM非同步傳輸模式交換系統– PACS個人接取通信服務– GSM行動電話– IN智慧型網路– IOSS 維運支援系統整合

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 Services. M.3400: TMN Management Functions.

Other TMN Recommendations

M.60 Section2: TMN Terminology & Definitions.

Q.811: Lower Layer Protocol Profiles for the Q3 Interface.

Q.812: Upper Layer Protocol Profiles for the Q3 Interface.

Q.821: Stage 2 and Stage 3 Descriptions for the Q3 Interface -Alarm Surveillance.

Q.822: Stage 1, Stage 2 and Stage 3 Description for the Q3 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.

1. Introduction2.2. TMN Functional ArchitectureTMN Functional Architecture3. TMN Physical Architecture4. Relationship Between TMN and OSI

Systems Management5. TMN Logical Layer Model

6. Key Technologies for TMN7. Concluding Remarks

Here We Are

TMN Functional Architecture

TMN functional architecture is based on a number ofTMN function blocks:

OSF (Operations Systems Function)

MF (Mediation Function)

WSF (Work Station Function)

NEF (Network Element Function)

QAF (Q Adaptor Function)

OSF

WSF

MF

QAF NEF

TMN

TMN Function Blocks

Operations Systems Function (OSF) block:For monitoring/coordinating and/or controlling telecommunicationsfunctions 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.

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 information.

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-TMNreference point (e.g., proprietary).

TMN Function Blocks (cont.)

Reference PointsReference 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

- q3: Between NEF and OSF, QAF and OSF, MF and OSF, OSF an

d OSF

. f reference points- Between WSF and OSF, WSF and MF

. x reference points- Between the OSF function blocks in different TMNs

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

WSF

f

f

g

1. Introduction2. TMN Functional Architecture3. TMN Physical ArchitectureTMN Physical Architecture4. Relationship Between TMN and OSI

Systems Management5. TMN Logical Layer Model

6. Key Technologies for TMN7. Concluding Remarks

Here We Are

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 BlocksOperations 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 Q3 interfaces.

Network Element (NE)The NE is comprised of telecommunication equipment (in groups, parts, or the whole) and support equipment thatperforms NEFs.

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 whi

chsupports the data communication function (DCF).The DCN represents an implementation of the OSI layer

s 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.

Q3: is applied at the q3 reference points.

* Qxand Q3 are distinguished primarily by the information they

carry.

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 TM

N with another management network which accommodates a TMN-like interface.

Relationship of TMN Interfaces to

TMN Building BlocksOS

DCN WS

DCN

QA NE NEQA

TMN

X X/F/Q3 F

Q3

Q3

QX

Q3/F

QXQX

MD

TMN

Q3 vs. Qx Interface

1. Introduction2. TMN Functional Architecture3. TMN Physical Architecture4.4. Relationship Between TMN and OSI Relationship Between TMN and OSI

Systems ManagementSystems Management5. TMN Logical Layer Model 6. Key Technologies for TMN7. Concluding Remarks

Here We Are

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 managementinformation. (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

ACSE + ROSE + CMISE

Telecommunications Management Services and ComponentsTelecommunications Management Services and Components

Management ofManagement ofTransmission PathsTransmission Paths

Management ofManagement ofSwitched NetworkSwitched Network

Management of Management of Customer ServicesCustomer Services

Telecommunications Management FunctionsTelecommunications Management Functions

ProvisioningProvisioning MonitoringMonitoringFaultFault

correctioncorrection VerificationVerification RestorationRestoration

OSI Systems Management FunctionsOSI Systems Management Functions

Log ControlLog ControlSMFSMF

Event ReportEvent ReportSMFSMF

ObjectObjectSMFSMF

Accounting Accounting Meter SMFMeter SMF

. . .. . .

. . .

. . .. . .

1. Introduction2. TMN Functional Architecture3. TMN Physical Architecture4. Relationship Between TMN and OSI

Systems Management5. TMN Logical Layer ModelTMN Logical Layer Model

6. Key Technologies for TMN7. Concluding Remarks

Here We Are

TMN Logical Layer Model

TMN supplies a model of logical layers that define or suggest the management level for specific functionality.

Business Management Layer Service Management Layer Network Management Layer Element Management Layer Network Element Layer

Network Element

NEL

EML

NML

SML

BML

Q-Adapter

QA forQA forNetwork OSNetwork OS

MDMD

MD forNetwork OS

NetworkNetworkOS OS

EMLEMLOS OS

EMLEMLOS OS

TMN Logical Layer Model

BML & SML

BML– High-level planning, budgeting, goal setting, executive de

cisions, business level agreements (BLAs), etc.

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 provis

ioning, accounts, quality of service, and fault management.

– The key point for interaction with service providers and with other administrative domains.

NML & EML

NML– NML has visibility of the entire network, based on the NE i

nformation presented by the EML OSs. – The NML manages individual NEs and all NEs as a group. – The NML coordinates all network activities and supports th

e demands of the SML.

EML– Manages each network element. – EML element managers, or OSs, are responsible for the T

MN-manageable information in certain network elements.

NEL

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. Introduction2. TMN Functional Architecture3. TMN Physical Architecture4. Relationship Between TMN and OSI

Systems Management5. TMN Logical Layer Model

6. Key Technologies for TMNKey Technologies for TMN7. Concluding Remarks

Key Technologies for TMN1. Managed Object Modeling and Interpretation

.2. Underlying Management Communication Pr

otocols (CMIS/P).3. Management Platform Based on Standard O

SI Systems Management Functions.4. Interoperability Issues Due to the Permitted

Options in OSI Protocols.5. Object-Oriented Technology. 6. Distributed Processing Technology7. Q Adaption of Existing Proprietary Managem

ent Applications.8. Domain Knowledge in Telecommunications.

Here We Are1. Introduction

2. TMN Functional Architecture3. TMN Physical Architecture4. Relationship Between TMN and OSI

Systems Management5. TMN Logical Layer Model6. Key Technologies for TMN7.7. Concluding RemarksConcluding 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.