NAGARAJAN SENGUTTUVAN

Expertize in Cisco IOS/XR based routers and switches: Extremely familiar with software design/architecture and the IOS (+XR) operating system. Worked on control plane/data plane designed systems. Familiarity with high availability (HA) router design and planned upgrades without service interruption.Technical expertise: Strong understanding of LAN Switching technologies,OSPF,BGP and MPLS. Exposure to LAN/WAN setup, installation, configuration and troubleshooting, Strong knowledge of HSRP, VRRP Redundancy Protocols in high availability environment. Networking: Good at networking basics, TCP/IP protocol suite, L2/L3(packet forwarding routing infrastructures) and Routing Protocols. Experience in Multicast- PIM (SM,DM,SSM,BIDIR), IGMP, IGMP Snooping. Working knowledge on Layer2 protocols that include VLAN (IEEE802.1q), SPAN and HSRP. Experience in network security features (ACLs, VPN, L2VPN, L3VPN, IPSEC, GRE). Good Knowledge in F5 Load balancing.Expert in debugging: Troubleshooting in large real-time multi-threaded applications and network failures, Network(Core, Edge). Expertise in Crash info/CORE files analysis, out of box thinking for solving sticky/corner issues. Key expertise on MPLS, IPv4, IPv6, Strong knowledge in Python.