Ranjan Basak Email & Phone Number

Dhaka, Bangladesh

Dhaka

Responsible for Network Operation Center management. Network Expansion Planning, Design, Research, Development and Implementation. Supervises installation and commissioning of network device using E-sight & N2000 Integrated Network Management System (NMS) of Huawei to ensure proper control. Create Reporting format & define the collection of report through E-Sight for Datacom devices and N2000 for core devices. Observation on SIP trace, internal user trace & other monitoring tools. Proper call prefix routing planning to maintain optimum routing table for voice call (both incoming & outgoing). Planning of call prefix processing. Responsible to conduct the completion of ICX & Carrier integration and the proper prefix routing for both incoming & outgoing traffic using Huawei NGN core devices like UMG8900, SE2600 & SOFTEX3000. Analyzing the CDR using IGWB server & reporting through performance management tools. Design & implement the features of STP Protocol. Design BGP PATH Attributes (AS-PATH, ORIGIN, NEXT HOP, LOCAL PREFERENCE) and Routing Policies (PREFIX-LIST, FILTER-LIST, ROUTE-MAPS) to bear the traffic for internet communication. Configured Huawei NE40E-X3 Router of Internet Gateway with BGP routing protocol & OSPF routing protocol and also maintenance & configuration change task in Huawei S9306, S3300 Layer3 Core Switch along with S2318 Layer2 access switch using VLAN, VRRP, OSPF and Static Routes.

 Working as team leader of core in OllO WiMAX project and have hands-on experience on ICX/IGW network architecture designing, planning & implementation. Responsible for Network Operation Center management. Network Expansion Planning, Design, Research, Development and Implementation. Supervises installation and commissioning of sites network device using ZTE NetNumenTM Integrated Network Management System (NMS) and ensures proper control and protection methods using firewall as well as ACL (Access Control List). Design & implement the features of ZESR Protocol, one of the ZTE proprietary protocol for preventing layer-2 loop and Supervlan features in the access layer. Design BGP PATH Attributes (AS-PATH, ORIGIN, NEXT HOP) and Routing Policies (PREFIX-LIST, FILTER-LIST, ROUTE-MAPS) to bear the traffic for internet communication. Configured ZTE M6000 Router of Internet Gateway with BGP routing protocol & OSPF routing protocol with some QoS features and ZTE ZXR-8908,ZXFR-8905, ZXR-8902, ZXR-5952E, ZXR-5952,ZXR-3928E, ZXR-3928-EFI Layer3 Core Switch along with ZXR-10 2928E Layer2 access switch and JUNIPER NETSCREEN ISG-2000 have also been configured in terms of policy making & implementation. Configured OSA 5220 NTP server for the time synchronization. Design & implement the QinQ features in ZXR-10 series Layer-3 & Layer-2 switch.  Working on ZXSEC US (Firewall) with the active-standby & standalone scenario with the zone to zone policies.

Work as a team for even running of organization through technical and professional aspects.• Responsible for Network Operation Center management. Network Expansion Planning, Design, Research, Development and Implementation.• Design IGP Access Network and Border Gateway Network of Tier-3 ISP using CISCO Dynamips & Dynagen Planning tool on Centos 5.5 Linux for Metropolitan Network as well as Internet Communication.• Supervises installation and commissioning of sites network device using ZTE NetNumenTM Integrated Network Management System (NMS) and ensures proper control and protection methods using firewall as well as ACL (Access Control List).• Establishes and Monitors Network Equipment Performance using CACTI, MRTG web-based tools and procedures for operation, modification, maintenance and repair of such systems using RANCID and using ZTE NetNumenTM Integrated Network Management System (NMS).• Design the different areas of OSPF Dynamic Routing Protocol and CLNP for IS-IS level-2 network protocol for Metropolitan Network and design BGP PATH Attributes and routing policies to bear the traffic for internet communication.• In depth Analysis daily, weekly, monthly of Data and Voice traffic and level of service using ZTE Netflow, Wireshark, Ethereal software tools and determines the type of installation, location, layout and transmission medium using Roll-out tracker and ZTE NetNumenTM Integrated Network Management System (NMS).• Configured ZTE T600 Router of Internet Gateway with BGP routing protocol and ZTE ZXR-8908, ZXR-8902 Layer3 Core Switch along with CISCO6509E Layer3 Core Switch and ZTE ZXR-3928E & 3928EFI ACCESS Layer3 Switch for Access network configuring OSPF and ISIS .• Configured and troubleshot of Cisco ASA-5550 and Juniper Net-screen 5400 firewall.• Configured web-caching solution of Juniper and working on Google web caching, Blue-coat and Peer-App.• In depth knowledge of making RFP for web-caching.

 Supervises installation and commissioning of sites network device using Solar Winds, WhatsUp Gold, Nagios and ensures proper control and protection methods using firewall as well as ACL (Access Control List) Design the different areas of OSPF Dynamic Routing Protocol and BGP PATH Attributes and routing policies to bear the traffic for internet communication. Installation and commissioning Cisco 7206 VXR, Cisco 3825 router with BGP routing protocol and Mikrotik router 450G for Access network with OSPF. Using ET/BWMGR in terms of policy making for both individual & group bandwidth usage. Using NetFlow Analyzer, a complete traffic analytics tool, leverages flow technologies to provide real time visibility into the network bandwidth performance. Documentation work like topology Diagram, IP database, Device database, management report as per requirement