Vigneshwaran L Email & Phone Number

Bangalore

Chennai, Tamil Nadu, India

Working in Data Network Design & Implementation, involving configuration of Datacenter Network devices, troubleshooting, managing & supporting for both ATOS Internal and External Customers.• Protocols and Technologies Worked on this Environment is BGP, OSPF, IPSEC, Virtual Router, Virtual Chassis, Nexus, NAT, MP-BGP (vrf), Nexus (VDC/VPc), F5 LTM,QFX Leaf and Spine, F5 LTM, F5 Host/Guest Setup.• Handled Atos Internal Datacenter with Nexus 7K 5K 9K 2K / ASA / ASR / ISR / Modular Switches Environment, Juniper QFX Switches, MX Routers & SRX Firewalls.• Working as Technical Lead for the Datacenter Operations Team. • Implemented New Projects with Shared / Dedicated Setup in DC as per their Requirements.• Migrating the Existing Clients to New DCs.• Creating HLDs/LLDs for the Operations Team post Implementation Handover. • Worked in Telefonica FMO DC project with Twin DC in Active/Active Setup.• Worked as a Technical Lead in managing the Telefonica DC Operations Team. • Worked in Next Generation Firewalls and high end F5 devices. Cisco 5585, Juniper 5400 SRX, Checkpoint 64000 and F5 i5800 boxes with high availability (Active/Active Setups).• Worked in a huge infra of a Nike Client Environment with Cisco Nexus 7k, 5k, 6500, 4500, 3750, 2960 Switches, Juniper Ex3300 & 4200 Series Switches. Cisco ASA, Juniper SRX, Cisco WLC, F5, Cisco 3800, 3900 2800 Series Routers. • As a Data Network & Security Engineer, troubleshooting and managing the Global infra of the Client Network. And also implementing new project requests in the environment.

Chennai, Tamil Nadu, India

Worked in an Environment of Data Network Design & Implementation, configuration of network devices, troubleshooting & maintenance, management & support for both TCS internal and external customers.• Implemented and Designed New ODCs, Datacenters ,New campus LAN and WAN, and Troubleshooting L3 level issues. • Implemented and Troubleshooted 6500 & 4500 series Core switches with VSS. Replaced failed supervisors and Line cards.• Brought up new TCS building with complete Juniper Devices such as MX480, SRX 240, EX4200 with Multi-chassis Ether-Channel load balancing.• Implemented and Troubleshooted VRF Lite, Route Leaking, MP-BGP and MPLS VPN in Asia’s largest center for TCS.• Migrated VTP 3 and Spanning Tree MSTP from older versions.• Troubleshooted High CPU issues of Core Switches of TCS Locations.• Configuring Cisco routers and switches with RIP, EIGRP, OSPF, BGP, HSRP, MSTP, VTP version 3, Port channel, VSS, MPLS VRF, IPsec, GRE and SSL VPN.• Working in high resilient LAN with network redundancy using Ether channel configured in 3-Tier architecture Core – Distribution - Access switch in MST loop free network.• Carried out IOS upgrade for Routers, Firewalls and Switches.• Managing and Maintaining of Core, distribution, access switches level with end-to-end redundancy using ether-channel configuration thereby load balanced and increased efficiency.

Coimbatore, Tamil Nadu, India

Managing and procuring Leased Lines / ISDN / PRI / E1 Links for different Clients

Coimbatore, Tamil Nadu, India

Managing and procuring Leased Lines / ISDN / PRI / E1 Links for a Banking Client as a Resident Engineer.