Dinesh Murugan Email and Phone Number

• Troubleshot all the operational issues we had on our datacenter and fixed it as soon as possible.• Determined operational weaknesses within the existing security infrastructure and present execution plans to overcoming those concerns in a timely fashion while still making the most cost-efficient use of resources• Took up the project to upgrade all our devices to the latest code and performed code upgrades on Arista (7280, 7512N), Cisco 4500 and 4900M, Nexus 5k and 7k, CRS and ASR9ks on our environment.• Troubleshot issues on our Nexus 7700s at spine with 5000s and FEX at leaf.• Teamed up with Enterprise and all our internal teams to implement and operate security policies and procedures on our ASA and SRX.• Was engaged in complex production impacting technical issues and worked to troubleshoot and restore services• Provided input to the problem management process, including assessing and evaluating software and hardware anomalies. Supported the root cause analysis efforts to determine problems and develop remediation activities. Worked with vendor support service groups to ensure proper support during outages or periods of degraded system performance.• Performed an audit on all our network devices and ensured that they were all part of our monitoring tools.• Worked on creating and renewing SSL certificates on our internal certs. Worked with our customers in renewing the SSL certificates which were behind our load balancers.• Configured and troubleshot F5 LTM and GTM providing level 2 and level 3 support for the customers.• Mature network management and troubleshooting skills; understand, troubleshoot, diagnose and resolve customer issues on A10 Load Balancer.• Used several network tools such as Wireshark, SPLUNK and Netscout to troubleshoot and assist the customers

• Configured and Managed Cisco Catalyst switches 2900,3500 and cisco routers.• Implemented Site to Site VPN between Cisco ASA firewalls using Cisco ASDM.• Performed cross platform audits of Active Directory (AD) objects and user permission using POWERSHELL.• Worked on PRTG network monitoring tool to evaluate the performance of data flow across multiple network.• Documenting network changes, updating network Visio diagrams and maintaining them in the shared repository. • Performed switching technology administration including VLANs, inter-VLAN routing, Trunking, STP, RSTP.• Installing, configuring Cisco Catalyst switches 6500, 3750 & 3550 series and configured routing protocol OSPF, EIGRP, BGP with access Control lists implemented as per Network Design• Optimized Network Performance, inter operability and robustness by configuring and testing new network equipment’s.• Managed Ticket queue assigned to me and my group (ServiceNow) • Responsible for the Operational Planning and maintenance of the Network by effective coordination among the Teams and managing the Field teams for the positive results

• Tutored undergraduate students up to level 400 in Chemistry, Mathematics, Physics, Computer Science and Basic Networking.• Guided students through their coursework’s and provided assistance in solving their problems

• Installed, configured and managed the Cisco Routers and switches of series 2800, 3700, 3800, and 7200, also catalyst switches 2900, 3500, 4500, and 6500.• Implemented Site to Site VPN’s between ASA firewall and Router Troubleshooting issues related to STP, RSTP and VLAN's allocation in Organization for maintaining Layer 2/3 Switching intact• Performing Server Hardware maintenance• Performed Server Patches and updates• Oversee the complete life cycle of installation, configuration, deployment, and administration of Windows 2003 - 2012R2 machines • Served over 100 users on XP and windows 2000 network . • Provided Tier1 technical support; assisted with addressing network problems, performed advanced troubleshooting, diagnostics and solutions to network failures.• Strong working knowledge in routing protocols like OSPF, EIGRP, RIPv2