British Telecommunications Limited

Benefits

• The system is able to recommend network improvements based on BT's planning rules to resolve real-world problems.

Case Study

- What is NEMOS
- Monitoring
- Reporting

What we do . . .

- PRODUCTS

- CONSULTANCY

- SUPPORT

- TRAINING

Network Modelling System

For BT Wholesale, SDS provide support, maintenance and enhancements for their state of the art NEtwork MOdelling System (NEMOS).

This system was architected and developed by the SDS team whilst working for Anite Telecoms Ltd. The system is based on a distributed client-server architecture for use on multi-processor based SUN SPARC stations and desktop PCs. Using parallel processing techniques, the system offers superior performance in modelling large scale networks at the national level.

What is NEMOS MT?

NEMOS MT is a planning platform that automatically captures data from the 'real' BT Voice (PSTN) network system. Simulates and generates network models which can be modified to allow "What-if" analysis to be performed against the BT PSTN network. In addition, this system has an ‘Optimization' feature which produces solutions for congested and potential ‘hot spots' ensuring service levels remain high.

This means that the impact of projected network and traffic changes can be determined. This system allows planners to manage the complete BT network: a huge system with millions of traffic flows, over 1 million routes, more than 10000 trunks and more than 1000 switching nodes.

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Monitoring

Our partner QoS Design, together with support from LAAS University, based in Toulouse, France, have worked for several years on conceiving new superior mathematical models (differential modelling) for large telephone networks.

This has resulted in their ability to analytically compute the network Grade of Service with accuracy and speed, which would otherwise take substantially much longer if based on event modelling. This quick turnaround of results for network behaviour allows planners to efficiently monitor the network and project forward on a timely basis ensuring service levels remain high and saving costs.

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Reporting

NEMOS MT is based on an ORACLE foundation.

Business Objects reporting is used to display results of model runs to the system users. A rich set of reports are produced some of which are :

• Audit Reports for reviewing the network as it is today.

• Comparison Reports (between two runs) to find out if improvements made a difference.

• Traffic Trend reports to see the affect of projected growth in traffic in say 6 months time.

• End to end Routing reports to show how traffic flows through the network and the alternative paths it may follow.