Knowledge of configuring and troubleshooting Interior Routing Protocols like (OSPF, EIGRP, RIPv.1, 2). Switching (STP, RSTP, PVRST+, VLAN, VTP, TRUNKING etc.) Knowledge of working on routers like Cisco 2600, 2800, 3600, 3700, series, Cisco Switches 2950, 2960, 3550, 3560 series. Comprehensive understanding of networking concepts pertaining to LAN, WAN, network security, WAN protocols, Networking Devices Administration and Maintenance. Managing IPS/IDS. Implementing Site-To-Site and Remote Access IPSEC VPN and GRE Tunnels..