TAC Network Engineer

Job Profile : Network Engineer Experience : 2 - 7years Location : Chennai ( Ambit IT Park) Shift : Rotational Night Shift Work Model : Work from office Key Skills : CCNA or CCNP(Trained/Certified) Education : Any UG/PG Degree / Min 3yrs Diploma Looking for Immediate Joiners only Job Description: Troubleshoot/Diagnose all Level 1 issues from the customers and driving satisfactory resolution of the issues. Troubleshoot Product, Codes and Configuration issues Ensure consistent customer satisfaction Document all communication with customers in the CRM Interface with international customers Timely handoff (escalation) of cases that require technical or political to L2/L3 TAC Primary Skills: OSI layers – detailed understanding of each layer’s function and relevant protocols that operates at each level TCP/IP – thorough understanding and clear explanation about windowing/handshake mechanism MAC header structure and use of each fields IP header structure and use of each fields ARP – how ARP works in a Layer 2 and Layer 3 communication Mac address table fields and how a switch uses MAC table for switching decisions ARP table and how a switch uses ARP table Routing Table fields and how a Router uses routing table for routing decisions DHCP protocol messages (clear understanding of DORA process) DHCP operation in layer 2 and layer 3 scenarios (server & client in same vlan or different VLAN) thorough understanding of Broadcast domain and Collision Domain thorough understanding of Unicast, Multicast and Broadcast traffic thorough understanding of Subnetting, Vlan, VTP, 802.1q, STP, Linkage thorough understanding of RIP (version 1 and 2) and OSPF (link states, LSA types, area types, router types, neighbor communication) Difference between Routing and Routed protocols Good troubleshooting approach (from Level 1 to 7 of OSI)