Session 12 TMN Adapted from Network Management: Principles and Practice © Mani Subramanian 2000 and solely used for Network Management course at Universitas Bina Nusantara

TMN Necessity for interoperability basis for TMN Need for management of more than just the network components Networks / subnetworks need to be managed Services - internal and external need management Business management needs to be addressed TMN joint effort by ITU-T and ISO

TMN Conceptual Model Data Communication Network Telecommunication Network Voice Data Communication Network Operations System NMS Workstation Telecommunications Management Network Transmission Switching Switching System Switching System

TMN Conceptual Model Components Interfaces Customers Services provided by Telecommunications Provider Network Operations Systems System Operators OS X Q3 F Workstation Service provider A Service provider B Components Interfaces

TMN Services & Functions ACSE ROSE TMN Functional Components TMN Management Services Business Management Service Network Element System Management Functional Areas Configuration Fault Performance Security Accounting TMN Function Blocks System Management Functions CMISE QAF NEF NM Manager Object Alarm M-GET / GET-REQUEST M-SET / SET-REQUEST M-CREATE Communication Transport Service (OSI Presentation Layer) OSF WSF MF DCF Presentation Function Remote Procedure Call

TMN Architecture Functional architecture: Functional modules or blocks Physical Informational Architecture Architecture Architecture Functional architecture: Functional modules or blocks Reference points between modules Physical architecture: Physical blocks Physical interfaces between the blocks Informational architecture: Information exchange between entities Object oriented

Functional Architecture OSF MF WSF QAF NEF q3 f qx x TMN B TMN A MF Mediation Function NEF Network Element Function OSF Operations Systems Function QAF Q Adapter Function WSF Workstation Function

TMN Reference Point Function Block Function Block Reference Point Function blocks connected by conceptual interfaces, called reference point Designated by lower case letters (upper case letter for physical interfaces) x: Interface between operations systems that belong to different domains; e.g., interface between two NMSs belonging to two different domains q3: Interface between two OSFs in the same domain qx: Interface between mediation function such as RMON and agent in the network element f: Interface to the workstation

Functional Architecture OSF: Functions performed by Operations systems: e.g., NMS, testing, accounting, trouble tracking NEF: Functions needed to support network elements;network elements themselves are not part of TMN: e.g., NM agent, MIB, collision rate MF: Operations on the information between network elements; e.g. filtering, protocol conversion. MF can be shared between multiple OSSs; e.g. RMON WSF: Human-TMN activities interface; e.g., GUI QAF: Adapter function to accommodate non-TMN entities; e.g. proxy server, SNMP-to-CMIP

Physical Architecture Operations System (OS) Data Communications Network Q Adapter (QA) Network Element (NE) Mediation Device (MD) X/F/Q3 F/Q3 Qx Q3 X F TMN Workstation

Information Architecture Manager Agent Operations / Requests Responses Notifications / Traps

Service Architecture Business Management q3 Service Management Network Management Element Management Managed Network Element q3

OS: Trunk Testing System Telecommunication Network Public Switch Transmission Test System Trunk Voice Nodes Transmission Links Trunk is a logical connection between two switching nodes Periodic measurement of loss and S/N of all trunks Failing threshold set for QoS; failing trunks removed out of service before the customer complains

OS: Telephone Switch Traffic Figure 11.2 Operations System for Traffic Measurement Data / Telecommunication Network Router / Switch Traffic Counter Router / Switch Measurement System Transmission Links Nodes Traffic monitored at switch appearance Call blocking statistics obtained Traffic and call-blocking statistics provide data for planning Importance of Operations, administration, maintenance, and provisioning

Example NMF Business Management Customer Service Service Mgmt Tarif/Charging Provisioning Other Network Net Mgmt Routing Admin Traffic Admin Restoration Element Net Element Cust Admin Switch Mgmt Trans Eqpt Mgmt Details Performance and Billing Data Configuration Service- impacting Events Equipment Alarms Q3 TMN Logical Layered Architecture Physical Realization of TMN Architecture q3 Ref. Point