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Mobilink NOC Dept.

Mobilink NOC Dept. By Faras Rafiq Ex- NOC (NSS) Engineer. Mobilink NOC. Telecom Companies in Pakistan. Telecommunication is one largest revenue generating industry in Pakistan. Currently the following companies are operating in Pakistan Mobilink WorldCall

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Mobilink NOC Dept.

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  1. Mobilink NOC Dept. By Faras Rafiq Ex- NOC (NSS) Engineer

  2. Mobilink NOC

  3. Telecom Companies in Pakistan • Telecommunication is one largest revenue generating industry in Pakistan. • Currently the following companies are operating in Pakistan • Mobilink WorldCall • Ufone Wateen • Warid PTCL • Telenor China-Tel (Paktel)

  4. Cost Comparison Mobilink earns AUS $15 Million/day by only voucher recharge, where as Mobilink biggest customer is Post paid

  5. History of Mobilink • Mobilink is owned by Orascom Telecom (OT) which is an Egyptian based company,it also owns MobiNil and BanglaLink. • Mobilink was established in 1999 and it is the largest Telecom Company in Pakistan. • 35 Million+ subscribers by March 2008. (compared to 21.4 Million population of Australia-on 9 Sep 2008 14:35). • 60 MSC’s,650+ BSC’s and 7000+ Cell sites across Pakistan. How to Manage such a large network !!!!

  6. History of Mobilink NOC • A centralized OMCR (Radio Network) was established in 2000 in Lahore. • Performed Fault and Configuration management for BSC’s and BTS only. • During 2006-2007 Mobilink faced a loss of US$ 60 Million due to Network Down time. • In 2007, Mobilink decided to establish a complete NOC for end to end visibility which included Access, Core, TXN, IN and VAS.

  7. Departmental Organization of Mobilink

  8. TMN Model

  9. Network Element • The following Network Elements are monitored in Mobilink. Access side:- • BSC’s (Alcatel,Motorola, Huawei) • BTS • Individual Cell Sites. Core Side:- • MSC’s (Siemens,Alcatel,Huawei,Nokia) • HLS (Motrolla). • STP ( Tekelec) IN & Vas side:- • IN Platforms (Siemens) • SGSN (Alcatel) • GGSN (Alcatel) • SMSC (Logica) • IVR’s • PRBT’s • USSD TXN side:- • Optical Fiber and ATM nodes (Huawei)

  10. Element Management • Following EMS’s are deployed in Mobilink Access Side:- • Motorola OMC • Alcatel OMC • Huawei OMC Core side:- • Siemens SCR • Alcatel NMC • Huawei iManager • NetBoss IN & Vas side • @comms • OMC-PS TXN side • Huawei iManager

  11. Network Management • EMS provide Fault and Configuration capabilities for their respective NE’s. • Alarm Types, Commands syntax and terminologies for hardware are different for each vendor. • Separate Teams and trainings required for each domain of elements. • Mobilink opted for a NMS solution called TeMIP (Telecommunication Management Information Platform) provided by HP. • One platform for all entities, translate all alarm types to standard format, convert generalized commands to individual EMS’s syntax. • A single Team required to handle problems from all types of Network Elements.

  12. Service Management • NOC engineers use TeMIP (NMS) to perform Fault and Configuration Management to provide services to the subscriber. • Special software are used to analyze the performance of individual NE’s and give their feed back to operations and planning departments. • Create Weekly, Monthly downtime and response time reports for higher management to analyze and devise strategies for future expansions and improvements. • That’s the reason NOC is given the name Eyes and Heart of a Network !!!

  13. Business Management • Managers and Specialists are responsible for proper functionality of NOC department. • Analyze reports and identify areas of improvement and devise strategies to reduce network downtime. • Take up issues with Operations and Planning department • These are the people who decide investing on Capex (US$80 Million TeMIP project) to reduce Opex .

  14. TeMIP NMS • In terms on FCAPS TeMIP provides F,C,P,S. • TeMIP provides the following functionality to NOC Engineer. • Automatic Trouble Ticket creation. • Tap Filter (Block unwanted alarms). • Corrective Filter (User friendly format). • Correlations (Handle complex scenarios). • Transient Filters (Avoid Fluctuations). • Outage Management (Planned Activity). • Routine checks .

  15. TeMIP NMS • “ an engineer opined to the author that network management is best described as all aspects of devising and operating networks that no one knows how to automate” D. Comer. • On average 280,000 alarms are received a day. These alarms are handled by 50 NOC engineers • Most of the alarms are fluctuations or straight forward and can be easily automated. • Automated systems cannot match human decision making. For example Fiber break, Outage due to Power issues. • A single 16 STM Fiber break will generate nearly 77,500 alarms alone. The process can be automated but infeasible in terms of time, computational and resource cost.

  16. Network Management Protocols • SNMP (UDP Based) • Q3 (TCP Based) • CORBA (TCP Based)

  17. Architecture of TeMIP

  18. OVSD Trouble Ticketing System

  19. OVSD Trouble Ticketing System • All Trouble Tickets created are stored in an oracle database. • These trouble tickets are notified to the relevant persons by automatic E-mail or SMS. • The on-site engineer accepts the T.T via e-mail or sms which indicates that the problem is under investigation. • Any change in the status of the T.T is notified and once the issue is resolved the on-site engineer inform the reason via e-mail or sms and the T.T is closed. • This T.T system is given the name OVSD.

  20. Configuration Management • TeMIP has the functionality to provide Configuration Management without worrying about the underlying Network Element. • Provides a standard GUI form with mandatory fields highlighted for particular tasks. • Once a command is executed, it is converted into the syntax understood by the respective EMS.

  21. Performance Management

  22. Performance Management • TeMIP provides statistical displays of T.T created for each type of problems in a day. • It provides easy extractable Excel file for creating reports. • It provides MAP’s to readily identify problems in the network • All these features are used by Management (Managers, HOD’s, Directors, CTO) to determine in one look how a network is performing.

  23. Alarm Text of SNMP Alarm • N1_L3MTP:Signalling link failed (stopped), LINK=STK1BL16,A tiIncTrapCleared trap was received from 10.14.2.30 at 274693740.DESCRIPTION: Trap issued by the INC to an OS with a severity value of 'cleared'. The objects contained in the variable binding list are scalar objects ( with index 0 ). VARIABLES:tiAlarmDateTime=20080801182933+0600,tiAlarmReportingObject={ 1 3 6 1 4 1 231 7 99 4 1000 0 },tiAlarmFaultyObject={ 1 3 6 1 4 1 231 7 99 47 1000 99 9 1 1 8 78 49 95 76 51 77 84 80 },tiAlarmEventTypeId=communicationsAlarm,tiAlarmSeverity=cleared,tiAlarmErrorID=1179650,tiAlarmEndKey=true, tiAlarmDescription=N1_L3MTP:Signalling link failed(stopped), LINK=STK1BL16,tiAlarmSequenceNumber=47066365, tiAlarmSourceName=in9ce1-core2, 1.3.6.1.4.1.231.7 iso.org.dod.internet.private.enterprises.sni.siemensUnits

  24. Countries where TeMIP is used for Network Management • France • Singapore • Peru • Canada • Taiwan • China • UK

  25. References • Mobilink NMS Ph2 Functional Specifications v1.0-S • http://www.mobilinkgsm.com • Price comparison figures taken from optus brochure • http://www.abs.gov.au/ausstats/abs@.nsf/94713ad445ff1425ca25682000192af2/1647509ef7e25faaca2568a900154b63?opendocument

  26. THANK YOU for your time ANY Questions !!!!!!!

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