ANSAwise - Telecommunications Network Management

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1 Poseidon House Castle Park Cambridge CB3 0RD United Kingdom TELEPHONE: Cambridge (01223) INTERNATIONAL: FAX: Training ANSAwise - Telecommunications Network Management Mark Madsen Abstract The ITU s Telecommunications Management Network Architecture is the standard for solving the problems occurring within the telecommunications arena. Principally, these management problems are caused by having non-homogeneous management systems for the different components making up the telecommunications framework, namely mobile radio networks, data networks, and telephone networks. These are normally distributed, and so their management also raises problems that are commonly encountered in distributed systems. The solution provided by the TMN standard architecture is homogeneous management for these heterogeneous networks, irrespective of details of location or platform. It is this architecture that is the subject of this module. 14th March 1996 Briefing Note Distribution: Supersedes: Superseded by: Copyright 1996 Architecture Projects Management Limited

3 Telecommunications Management Network Mobile TMN Telephone Data TMN 1

4 In this session Explain the motivations for TMN Show the form of the TMN architecture Discuss the components of TMN Show how distributed systems contribute to TMN TMN 2

5 Motivation for TMN Problem: non-homogeneous management systems for - different networks - different elements of networks TMN 3

6 Non-homogeneous Management Systems OS = Operations System Mobile Radio Networks OS OS OS OS OS Telephone Networks OS OS Data Networks OS OS TMN 4

7 The Solution Homogeneous network management - for heterogeneous networks - based on architecture for interoperation between management functions TMN provides all this - by using distributed systems techniques to implement the necessary functionality TMN 5

8 What is TMN? Management architecture defined by CCITT - public data networks are incorporated as objects - these objects are managed by carriers PTT view breaks up network management - operations - administration - maintenance TMN 6

9 Homogeneous Management System Mobile Radio Networks TMN Telephone Networks Data Networks TMN 7

10 Service Integration with TMN Integrated management should provide - management of different basic networks with a single management network - control and supervision of carrier networks and services - user management and network maintenance - cooperation between manufacturer-specific aspects of operations, administration, and maintenance (OAM) These aspects are referred to as the TMN management dimensions TMN 8

11 TMN Management Dimension Diagram M a n a g e m e n t TMN Overlay Network Business Customer Service Network Subnetwork Network Element Switching Transmission Mobile Data F a u l t s C o n f i g u r i n A c c o u n t i n g P e r f o r m a n c S e c u r i t y Basic Networks TMN 9

12 TMN Reference Model Specified in CCITT recommendation M.3010 Provides a separate management network consisting of - telecommunications network - network element - operations system - mediation device - workstation - data communications network TMN 10

13 Telecommunications Network Comprises individual subnetworks provided by a single carrier - telephone network - ISDN - X.25 network - mobile-radio network - videotext network - videoconferencing network TMN 11

14 Network Element Supports Network Element Function (NEF) - makes respective network functionality/services of TN available to the user - switching network nodes - multiplexers - cross connects TMN 12

15 Operations System Provides Operations System Function (OSF) - processes the management information - controls and monitors TNs - handles data analysis and global control TMN 13

16 Mediation Device Supports Mediation Function (MF) - acts as a management gateway - forwards information between NE/NEF and OS/OSF Supports management functions like - data collection and switching - data preparation and concentration - forwarding discrimination and network component identification - protocol conversion TMN 14

17 Workstation Provides Workstation Function (WSF) Enables human users to access TMN Always a leaf component of the network TMN 15

18 Data Communications Network Supports Data Communication Function (DCF) Also responsible for Local Communication Network (LCN) Provides for communication between other TMN units TMN 16

19 TMN Reference Model Diagram OS Operations System Function (OSF) F X To other TMNs Q3 Q3 Data Communications Network (DCN) F F Legend Interface to workstations Q3 MD Mediation Function (MF) Qx F Q3/ Qx Standardized interface to operations system functions NE Network Element Function (NEF) Local Communications Network (LCN) Qx Network Element Function (NEF) Qx Network Element Function (NEF) F NE Workstations X -0- Interface to other TMNs Reference point TMN 17

20 Reference Points The TMN reference model also contains a number of reference points These are interfaces between TMN entities that are specified by services or protocols - F: interface to WS - X: interface to other TMNs - Qx, Q1, Q2: interfaces for connecting simple transmission and switching equipment - Q3: interface for connecting more complex equipment or entire switching nodes. Follows CCITT recommendation G.513. TMN 18

21 TMN Component Function Assignments OSF OS OSF Legend q3 Q3 Physical element (component) q2 MF TMN MF MF MF MF Q2 Function block MF MF MF MF MF Reference point (q) q1 Q1 NEF NEF NEF NEF NEF Interface (Q) and reference point (q) TMN 19

22 Implementing TMN Implementation of TMN proceeds in stages - connection of existing network elements (NE) to existing OS systems via mediation functions (MF) - installation of TMN systems for system-independent operation - introduction of communicating TMN systems TMN 20

23 TMN Applications Development Similar to standard management application development processes - definition of TMN object class library - uniform design of user interface - object-oriented design and programming - common development environment - increasing platform functionality - integration of new TMN applications TMN 21

24 Summary TMN is a standard management architecture TMN is based on OSI management concepts TMN draws heavily on distributed systems technologies TMN provides for homogeneous management of heterogeneous systems TMN Reference Model describes how management components relate to each other TMN 22

25 More information? TMN Reference Model: CCITT Recommendation M TMN and Intelligent Networking: see TMN and New Network Architectures by Catherine Pontailler, IEEE Communications Magazine, April 1993, pp83-88 For more on TMN-related subjects: - general management of networks and systems, see Integrated Network and System Management by Heinz-Gerd Hegering & Sebastian Abeck (Addison-Wesley, 1994) TMN 23

ANSAwise - Integrating Legacy Systems

ANSAwise - Integrating Legacy Systems Poseidon House Castle Park Cambridge CB3 0RD United Kingdom TELEPHONE: Cambridge (01223) 515010 INTERNATIONAL: +44 1223 515010 FAX: +44 1223 359779 E-MAIL: apm@ansa.co.uk Training ANSAwise - Integrating