Chandrasiri Guanaratna

Overall responsibility of Managing Technical and Sales teams to ensure customers requirement and demands are completely met. Provide guidance and and mentoring my teams to achieve goals set by the Management. Provide Technical Training Cisco Streams CCNA and CCNP to customers and internal staff.
Research in new Technological advancement and report to the management. Organize Training sessions Demonstrations to customers and public on Technological innovations

Design and implementation of a campus-wide high speed network providing a highly reliable network transport service for a large and varied set of clinical and administrative requirements
Conduct site assessments / audits of fibre and copper cabling, switching, racking, powering and other supporting infrastructure, as required
Preparation of documentation during the design, assessment, preparation and implementation phases
Provide technical guidance / assistance to the Network resource(s) who will be implementing the new network, including the network switching, routing and access control infrastructure

• Gather user and facility requirement for designing proposal for the Customers
• Preparation of RFP and design documentation
• Vendor selections and obtain resources for the projects
• Equipment Suppliers( Cables Antenna, Access Points Routers/Switches) from Singapore and Technical resources from Singapore and Sri Lanka
• Progress monitoring and meeting with clients and vendors
• Regular Visits to Singapore office for training and conferences

• Monitoring of the Network and rectifying issues using Spectrum, Ehealth and Cisco LMS ( LAN & WAN),
• Monitoring Wireless Cisco Network Control System, Network Control System
• Authentication servers RADIUS- Cisco Secure Access Server wireless authentication
• DNS Administration -INFOBLOX
• Create and maintenance of Network Diagrams and Topology Maps using VISIO
• Order Cabling and equipment
• RMA Handling
• Asset Management
• Data Center Operation (Cisco NEXUS Series Switches) 6500 Core Switch/Router 4500 Distribution
• Assessment of Communication Rooms for Rack space, Power and cabling requirement
• Site Upgrades - Coms room survey and add move or change Switches Routers
• Configuring Cisco Switches and routers
• Locate and troubleshoot network issues
• Network Monitoring and Management
○ HP Open view
○ Spectrum Network Management Systems
○ Ehealth Network Management System for performance monitoring
○ Cisco Works LAN WAN Management

Network Management of Provincial Wide Network (WAN &LAN)
Wireless LAN
Network Operational activities
Site Installation Configuring and Troubleshooting,
Site Upgrades and enhancements
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• 130 sites ( Branches & Generating Station), connected through TELUS WAN and BC Hydro Managed WAN (Cable & Microwave)
• I was responsible for configuration of the Site equipment ( Router and Switches Wireless Access points) and worked with TELUS and BCH Cable Techs for site installations upgrade and troubleshooting
• Major assignment :

Switch Refresh Project: replaced old Cisco Switches Stacks in Several Office Floors of Edmonds Campus buildings, Surrey Campus and Yard Installations
Wireless implementation of Powerex at Burrard St
Powetech Labs Network upgrade
Daisy lake Network Site Installation
Como Lake Circuit redirecting from infosat to BCH Microwave



• Monitoring of the Network and rectifying issues using Spectrum, Ehealth and Cisco Network Control System ( for Wireless) and Cisco LMS ( LAN & WAN), Cisco Secure Access Server
• DNS Administration (infoblox Appliance)

Technical Environment: 65XX Core Switches, integrated Modular routers, 35XX, 29XX Switches 28XX Routers, 1xxx Series Modular routers, Secure Access Servers
Network Management & Monitoring
ITSM, Spectrum, Ehealth and Cisco Network Control System (for Wireless) and Cisco LMS (LAN & WAN)

Network Management of Provincial Wide Network (WAN &LAN)
Wireless LAN
Network Operational activities
Site Installation Configuring and Troubleshooting,
Site Upgrades and enhancements
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IT Management Activities

Operation and Monitoring of BC Hydro Provincial Network
Network Installation, Network Administration, Design and Implementation of Wireless Network Solution


 Site Installations
 Site Upgrades
 Configuring Cisco Switches and routers
 Locate and troubleshoot network issues


 Network Management with HP Open View
• Spectrum Network Management Systems
• Ehealth Network Management System for performance monitoring
• Cisco Works
• Cisco Wireless Control System (WCS)

 DNS Administration using INFOBLOX Appliances

Technical Environment: 65XX Core Switches, integrated Modular routers, 35XX, 29XX Switches 28XX Routers, 1xxx Series Modular routers, Secure Access Servers

Provide sales and support for System Integration soulution inlcuding 802.11 Wireless LAN for Major Telcos inSri Lanka such as SUNTEL (PVT) Ltd
Dialog Telekom, Sri Lanka Telecom, Hutch Telecom

Technical Environment: RAD Datacom Products

• Ethernet over Fiber Devices- ETX,
• Ethernet over TDM - EGATE
• OpticaI MuItipIexer OP Series
• Fiber Optical Modems - FOM Series
• MuIti Access Concentrators MP, Series
• VOIP Gateways - VMUX, IPVGATE
• Interface Convertors
• Copper /DSL Modems ASM Series
• ATM NTUs—ACE Series
• TDM - RIC-E1/T1
• SDH Multiplexers -OP-155
• SDH/SONET ADMs - FCD-155
• TDM NTU - FCD E1/T1
• Remote Gateways - IP MUX

• Wireless Network design and implementation exceeding 200 Cisco Access points, and Using Wireless LAN Solution Engine ( trained on Wireless LAN Solution Engine in Fast Lane Dubai)


Major Projects:
a. implemented Campus LAN with 6509 Core and Wireless Network with Cisco Access Points 1231 AG Model which has been deployed in 15 buildings of the Campus of College of North Atlantic in Doha - Qatar.- Position held: In-charge of the installation
b. Setting-up Enterprise LAN at College of North Atlantic in Qatar. Position held: Team Leader
c. Retracing of LAN at University of Qatar. Position held: Team Leader
d. Design and Implemented LAN and WLAN at Doha Security - Team Leader
e. Wireless Site survey for Qatar Foundation of Qatar. Position held: Team Leader
f. Wireless Site Survey for Hamad Hospital of Qatar. Position held: Team Leader
g. Relocation and Reinstallation of Qatar Construction Facility -with Remote Dial in Access . Position held: In-charge of Installation
h. Design and implemented WAN for Taleb Trading Computer Network with Remote sites ISDN, Frame Relay
i. Re-Design Jaidah Motors WAN including Dial in Access and Implemented
j. Western Asian Games Sites of Qatar. Station Network in-charge
k. Wireless Site Surveys for Many customers - tool used Visiwave, Aironet Client utility, Site Survey-Kit

Technical Environment:
Setting up Enterprise Networks using Cisco products: Inclusive of 65XX Core Switches, integrated Modular routers, IDS, Access Points, WDS, 35XX, 29XX Switches 26XX Routers, 1xxx Series Modular Routers, PIX Firewall, VPN Concentrators, Secure Access Servers,

• Total Wireless communication infrastructure planning and implementation including LAND LINE and RF Technology LXE 2.4 GHz CISCO/Proxim/Orinoco Access Points, LXE NC6200 Network Controller and various Hand Held Terminals.
• Wireless Networking and Wireless ISP Solutions ( supporting Lanka Internet with Orinoco products for Bridging their sites)
• Conduct Site Surveys for optimum RF equipment deployment

Major Project: Installed Wireless LAN OF ORINOCO/LXE products at Colombo port for container management in 2003 March, maintenance of the same.
• The system comprises of 2 COR, 6 ROR and 28 Hand Held Computers.
• Tools used Orinoco/Avaya OR Manger/Client Manager
• Introducing Radio Frequency and other modes of Data Communication in Sri Lanka and in the region and to maintain a fully operational demonstration system at the Office.
• Communicate with the Customers on behalf of the Company and maintain effective and satisfactory Customer Relations.
• Carrying out research on Data Communication market in Sri Lanka and abroad and making recommendation to the management on necessary marketing activities.
• WINDOWS NT and NOVELL, in the most efficient and productive manner.
• Providing support services required by the other core business units such as SOFTWARE and GPS, especially in the areas of Data Communication, both wired and wireless.
• Assisting the GPS department with their needs with regard to Radio Link used
• Evaluating the performance, training and other related needs of staff and to make recommendations to the Management for necessary recruitment and retrenchment.
• Maintaining all assets of the Company, used by the department in good order and to make recommendation to the Management for necessary purchases and disposals.
• Conduct Technical training where appropriate.

took part in LXE partner conference in Malaysia

Technical Enviroment:
LXE 2.4 GHz Proxim/Orinoco Access Points OR Manager Software, LXE NC6200 Network Controller and various Hand Held, and Vehicle Mounted RF Terminals

Responsibilities: Overall responsibility of Installations and to provide excellent after sales services.
• Supervision of Technical team:
• Installations
• Preventive maintenance
• Trouble shooting and recovery
• Demonstrations and Workshops
• Enhancements and Upgrades.

Responsibilities: Overall responsibility on Operations and Maintenance of the following,
Supervision of Technical Staff

• Cisco Routers and Switches /Frame Relay Services
• US Sprint International X.25/SNA Packet Switching Sysytem
• Timeplex Multiplexers
• RAN Radio Modems
• Various makes of Line Modems