Telecom Man Network

TMN: Telecommunications Management NetworksSaad Haj Bakry, PhD, CEng, FIEEPRESENTATIONS IN NETWORK MANAGEMENT

Saad Haj Bakry, PhD, CEng, FIEE

Objectives / Contents Introducing TMN

TMN Nodes

TMN InterfacesSupportTMN: Telecommunications Management Networks


TMN: Emergence Birth: 1988 by the CCITT (ITU-T)

First Implementation of TMN Interfaces:1992 (ITU-T)

Current State:Continued Support (Standards / Products)TMN: Telecommunications Management Networks


TMN: Basic Concept TMN: Telecommunications Management Networks

Managed SystemTelecommunications NetworksManaging SystemTMN: Management is performed by a cooperating set of systems (Network of Systems).PurposeAccommodating Diverse Technologies (Multi-Vendors)HowUsing Standard Interfaces


TMN: Operation Principle TMN: Telecommunications Management Networks

Objective Concerned with: Operation, Administration, Maintenance, and Provisioning (OAM&P).InteractionManaged Systems: (Using) Network Elements (NEs)Managing Systems: Operation Systems (OSs)Interaction: Standard Interfaces


TMN: Structure TMN: Telecommunications Management Networks


Nodes: Operation System (OS)Definition: The TMN Supervisory & Control System

Functionality Layers:Business / (Application) ManagementService ManagementNetwork ManagementElement Management TMN: Telecommunications Management Networks


Nodes: Work Station (WS)Definition: TMN Human Site

Function:Provides Presentation Functions to theManager.TMN: Telecommunications Management Networks


Nodes: Mediation Device (MD) & Q-Adaptor (QA) Definition: MD / QA are adaptors(QA Connects TMN Systems to Non-TMN systems)

Operations:Storage, Adaptation, Filtering, Thresh-holding, Condensing, Data from Subtending Equipment.TMN: Telecommunications Management Networks


Nodes: Network Element (NE)Location: NE resides in the Managed Telecom Network to Handle Traffic (Not Management)

Operation:Origin & Destination of management Supervision & Control.TMN: Telecommunications Management Networks


Data Communication Network: DCNDefinition: TMN Communication Network Between Nodes(The Transportation Mean of the TMN World)DCN versus The Managed Network:Initially assumed to be IndependentThis restriction has been Relaxed to reduce CostTMN: Telecommunications Management Networks


Interfaces Function: Interfaces govern the manner in which management systems interact.

Standards:Standards for interfaces are emphasized to allow nodes (of different vendors) to interact.TMN: Telecommunications Management Networks


Interface: Q1Q1 Interfacing: MD - [Q1] NEA number of small scale NEs supported an MD(Multiplexing & Transmission Equipment)Scope: Layers 1 & 2 of ISO-OSI 7 LayersActivities:Transporting Alarm States (Binary Indications)Loop-Back RequestsTMN: Telecommunications Management Networks


Interface: Q2Q2 Interfacing: MD - [Q2] NE (more sophisticated)More intelligent large scale NEs (More Sophisticated Multiplexing & Transmission)Scope: Layers 1, 2 and 3 of ISO-OSI 7 LayersActivities:More sophisticated than Q1Alarm SurveillanceData Transfer (not only binary indications)TMN: Telecommunications Management Networks


Interface: Q3Q3 Interfacing: OS - [Q3] NE / OS - [Q3] QAOS [Q3] MD / OS [Q3] OS Intelligent Nes for Intelligent Equipment (Switches)

Scope: Layers 1 to 7 of ISO-OSI 7 LayersActivities:More sophisticated than Q2Full Capability Interface.TMN: Telecommunications Management Networks


Interfaces: X / FX Interfacing:

OS (TMN:1) [X]OS (TMN:2)F Interfacing:

WS[F]Other NodesTMN: Telecommunications Management Networks


Functions: OS LevelSurveillance / Control

Service objectives / Reference

Compare performance data to maintenance limits

Invoke maintenance.Preventive &CorrectiveTMN: Telecommunications Management Networks


Functions: DCN LevelCommunications

Transport performance information & commands viaprotocols, languages & messagesTMN: Telecommunications Management Networks


Functions: MD LevelMediation

Provides data pre-processing & concentration plusprotocol conversionTMN: Telecommunications Management Networks


Functions: NE LevelMonitoring & Testing

Generates alarms & performance information forreporting to OSTMN: Telecommunications Management Networks


RemarksTMN Internationally recommended conceptWell supported by standardsImportant RelationshipsISO & Internet (SNMP)Future: NM products supporting TMNTMN: Telecommunications Management Networks


ITU-T Standard GroupsTMN: Telecommunications Management Networks

TopicGroup StandardsNetwork MaintenanceSG 4M-seriesData Networks and Open System CommunicationSG 7X-seriesSwitching & SignalingSG 11Q-seriesTransmission SystemsSG 15G-series


Standard DocumentsTMN: Telecommunications Management Networks

ITU-T (CCITT) TMN StandardsPrinciples of TMNM.3010TMN Management ServicesM.3200TMN Interface Specification MethodologyM.3020Overview of TMN RecommendationsM.3000TMN Management FunctionsM.3400Systems Management OverviewX.701


References Enter the World of TMN, IEEE Communications Magazine (Special Issue), Vol. 33, No. 3, March 1995.

Gruber J.J., Transmission Performance Of Evolving Telecommunications Networks, Artech House, Boston-London, 1992.TMN: Telecommunications Management Networks
