Md Anisur Rahman Email & Phone Number

• Lead and managing the IP Core Network.• Planning, design and implement data center network and disaster recovery center. • Evaluates the vendor’s submissions, and involves in commercial and technical negotiations with the vendors.• Experience with network management systems, flow analysis and packet capture analysis• Building and deploying scalable, reliable network infrastructure and delivering the highest quality operational support and customer service.• Proactively improve and enhance network services reliability and efficiency.• Developed and executed ISP Network infrastructure with Juniper Network devices• Build the device to work with routing and switching protocol such as BGP, OSPF, VLAN, Virtual Chassis• Upstream Capacity planning, Upstream coordination and troubleshooting.• Evaluated and identified ISP network loophole, collected information, and implemented possible solutions resulting in customer satisfaction• Focus to the business development and new project.• Working with management for improvement scope area.

• Delivering the highest quality operational support and customer service.• Experienced to establish the Primary Data Center and Disaster Recovery Data Center.• Planning, designing and implementing IP based network and configuring routing and switching protocol i.e. VLAN, VRRP, BGP, OSPF, ISIS, VPLS, MPLS and Juniper Virtual Chassis with EX series switches.• Maintaining secured system with SELinux and strict IPTables rules on all Linux servers.• Coordination with upstream providers, troubleshooting, load balance the capacity using BGP attribute.• Performance monitoring and administering firewalls, routers, switches, security logs and system log analysis using NMS system of JUNOS Space for maintain the operation smoothly and fault handling. • Assist to Implementing Security Infrastructure to defend threats & advance attack using most effective security appliances; such as IPS, Antivirus, AntiBOT, E-mail Security, WEB filter & Firewall.• Plan and design the passive DWDM MUX for long distance optical fiber connection with single fiber core transmission using different wavelength of SFP.• Research and evaluate Level3’s upstream bandwidth Capacity to ensure appropriate service level to assure and operate the network at optimal performing level.

• Provide solution to customer on complex network; which run with different routing protocol i.e BGP, OSPF, IS-IS, MPLS, MPBGP, VPLS.• Research, analyze and Implement IPv6 in Level3 Carrier network.• Installed, Configured and troubleshoot Mail server, Web Server and DNS on Linux platform.• Building and configuring and managing Microsoft Hyper-V cluster solution and VMWare.• Assist to design, planning, implementing, configuring and upgrading various network element and servers.• Deployed different monitoring tools like; Cacti, Observium, PRTG Network Monitor, OpManagerand and NfSen. • Configuration and installation of Active Directory Domain Controller on Window server.• Coordinate with ILD operators and data center to establish PoP at Equinix Singapore and connect wilh multiple Content Delivery Network, Tier-1 ISP and Equinix IX.• Troubleshoot and perform root cause failure analysis for hardware faults related to equipment.• Maintain and update the document for each and every change in the network.

• Installed, configured and maintained Mail Server, WEB Server, DNS, DHCP, FTP, Radius Manager on Linux platform.• Configuring according to design using VLAN, VTP, STP, ACL, PPP, WAN, VPN.• Install and Managed the MikroTik Router and AAA server operation and maintenance.• Planning, designing and implementing of Backbone Networks and WAN [Fiber Optic and DSL Cable] connections for NextOnline Limited’s Clients.• Monitor the networking devices through PRTG Network, Cacti, SNMPc.• Provide technical support including routing, recovery and service quality issues.• Design and configure different VPN technologies like IPSec, GRE, IPIP, L2TP, PPTP with different vendors like Juniper, Cisco and MikroTik.• Analysis and troubleshooting security policies by using ACL, IPtables and firewalls.• Coordinate with Vendor, Power and Optical fiber link support departments.

• Install and troubleshooting customer’s WAN/LAN devices specially Routers and Switches.• Investigate technical problems at gateway and customer side and expedite resolution.• Troubleshoot and Maintenance the distribution of layer2 Network (VLAN, TRUNK).• Monitoring and troubleshooting the networking devices through SNMP, Syslog as well as monitoring network usage and bandwidth allocation.• Transmission Network Implementation, Plan and design for Fiber Optic network infrastructure• Configuration and trouble shootings of Broadband applications like VPN, Video Conferencing.• Provide technical support to customers about local Systems/Networks.• Install and configure Windows and Linux based Operating systems