Analyze Level 1 issues based on TCP/IP model of Communication.• Monitor/support the WAN, MAN, LAN, VPN, switches, routers.• Working on DNS, DHCP Request.• Troubleshooting the connectivity /Network related Issues between IMI and Servers deployed in various datacenters.• Working on troubleshooting connectivity problems using Ping, Traceroute.• Identifying, analyzing and fixing network related issues across the organization.• As a part of new site implementation configure Cisco devices with different routing protocol like BGP, OSPF, EIGRP based upon client requirement and as per company standards• Cisco Routers, Switches IOS upgrades with latest IOS version as per company standards• Understand and troubleshoot any issue related to network faced by end users• Configuration and testing of various networking equipment for production rollout.• Configure Cisco routers and switches per network design specifications• Interact with vendors to resolve technical issues with their equipment.• Network assets Lifecycle management • Manage Network Capacity and Availability.• Working on Wireshark analyzer to get details report for device interfaces • Working on Change request tickets raised from Client end and making the changes in the configuration of network based on their suggestions.• Configured ACLs to provide accessibility and restrict unauthorized users.• Implemented VTP and Trunking protocols (802.1q and ISL) on 3560, 3750 and 4500 series Cisco Catalyst switches• Provided on-call support for installation and troubleshooting of the configuration issues.• Configured STP for loop prevention and VTP for Inter-VLAN Routing• Involved in maintaining STP, RSTP and PVST+ for the catalyst switches.• Implemented Trunking protocols like 802.1q on 3750 switches.• Involved in L2/L3 Switching Technology Administration including creating and managing VLANs, Port security, Trucking, STP, Inter-Vlan routing, LAN security.