1. Saad Haj Bakry, PhD, CEng, FIEE 1 TMN: Telecommunications Management Networks Saad Haj Bakry, PhD, CEng, FIEE P RESENTATIONS IN N ETWORK M ANAGEMENT

2. Saad Haj Bakry, PhD, CEng, FIEE 2 Objectives / Contents Introducing TMN TMN Nodes TMN Interfaces Support TMN: Telecommunications Management Networks

3. Saad Haj Bakry, PhD, CEng, FIEE 3 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

4. Saad Haj Bakry, PhD, CEng, FIEE 4 TMN: Basic Concept Managed SystemTelecommunications Networks Managing System TMN: Management is performed by a cooperating set of systems (Network of Systems). Purpose Accommodating Diverse Technologies (Multi-Vendors) HowUsing “Standard Interfaces” TMN: Telecommunications Management Networks

5. Saad Haj Bakry, PhD, CEng, FIEE 5 TMN: Operation Principle Objective Concerned with: Operation, Administration, Maintenance, and Provisioning (OAM&P). Interaction Managed Systems: (Using) Network Elements (NEs) Managing Systems: Operation Systems (OSs) Interaction: Standard Interfaces TMN: Telecommunications Management Networks

6. Saad Haj Bakry, PhD, CEng, FIEE 6 TMN: Structure OS: Operation System Q3 DCN: Data Comm. Network Q3 MD: Mediation Device Q2Q1 Simple NEs Intelligent NEs WS F X Another TMN TMN: Telecommunications Management Networks

7. Saad Haj Bakry, PhD, CEng, FIEE 7 Nodes: Operation System (OS) Definition: The TMN “Supervisory” & “Control” System Functionality Layers: –Business / (Application) Management –Service Management –Network Management –Element Management TMN: Telecommunications Management Networks

8. Saad Haj Bakry, PhD, CEng, FIEE 8 Nodes: Work Station (WS) Definition: TMN “Human Site” Function: Provides “Presentation Functions” to the Manager. TMN: Telecommunications Management Networks

9. Saad Haj Bakry, PhD, CEng, FIEE 9 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

10. Saad Haj Bakry, PhD, CEng, FIEE 10 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

11. Saad Haj Bakry, PhD, CEng, FIEE 11 Data Communication Network: DCN Definition: TMN Communication Network Between Nodes (The Transportation Mean of the TMN World) DCN versus The Managed Network: Initially assumed to be “Independent” This restriction has been “Relaxed” to reduce “Cost” TMN: Telecommunications Management Networks

12. Saad Haj Bakry, PhD, CEng, FIEE 12 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

13. Saad Haj Bakry, PhD, CEng, FIEE 13 Interface: Q1 Q1 Interfacing: MD - [Q1] – NE A number of small scale NEs supported an MD (Multiplexing & Transmission Equipment) Scope: Layers 1 & 2 of ISO-OSI 7 Layers Activities: –Transporting Alarm States (Binary Indications) –Loop-Back Requests TMN: Telecommunications Management Networks

14. Saad Haj Bakry, PhD, CEng, FIEE 14 Interface: Q2 Q2 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 Layers Activities: –More sophisticated than Q1 –Alarm Surveillance –Data Transfer (not only binary indications) TMN: Telecommunications Management Networks

15. Saad Haj Bakry, PhD, CEng, FIEE 15 Interface: Q3 Q3 Interfacing: OS - [Q3] – NE / OS - [Q3] – QA OS – [Q3] – MD / OS – [Q3] – OS Intelligent Nes for Intelligent Equipment (Switches) Scope: Layers 1 to 7 of ISO-OSI 7 Layers Activities: –More sophisticated than Q2 –Full Capability Interface. TMN: Telecommunications Management Networks

16. Saad Haj Bakry, PhD, CEng, FIEE 16 Interfaces: X / F X Interfacing: OS (TMN:1) [X] OS (TMN:2) F Interfacing: WS [F] Other Nodes TMN: Telecommunications Management Networks

17. Saad Haj Bakry, PhD, CEng, FIEE 17 Functions: OS Level Surveillance / Control Service objectives / Reference Compare performance data to maintenance limits Invoke maintenance. –Preventive & –Corrective TMN: Telecommunications Management Networks

18. Saad Haj Bakry, PhD, CEng, FIEE 18 Functions: DCN Level Communications Transport performance “information & commands” via “protocols, languages & messages” TMN: Telecommunications Management Networks

19. Saad Haj Bakry, PhD, CEng, FIEE 19 Functions: MD Level Mediation Provides “data pre-processing & concentration” plus “protocol conversion” TMN: Telecommunications Management Networks

20. Saad Haj Bakry, PhD, CEng, FIEE 20 Functions: NE Level Monitoring & Testing Generates “alarms” & “performance information” for “reporting to OS” TMN: Telecommunications Management Networks

21. Saad Haj Bakry, PhD, CEng, FIEE 21 Remarks TMN – Internationally recommended concept –Well supported by standards Important Relationships –ISO & Internet (SNMP) Future: –NM products supporting TMN TMN: Telecommunications Management Networks

22. Saad Haj Bakry, PhD, CEng, FIEE 22 ITU-T Standard Groups TopicGroupStandards Network MaintenanceSG 4M-series Data Networks and Open System Communication SG 7X-series Switching & SignalingSG 11Q-series Transmission SystemsSG 15G-series TMN: Telecommunications Management Networks

23. Saad Haj Bakry, PhD, CEng, FIEE 23 Standard Documents ITU-T (CCITT) TMN Standards Principles of TMNM.3010 TMN Management ServicesM.3200 TMN Interface Specification Methodology M.3020 Overview of TMN RecommendationsM.3000 TMN Management FunctionsM.3400 Systems Management OverviewX.701 TMN: Telecommunications Management Networks

24. Saad Haj Bakry, PhD, CEng, FIEE 24 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