Designation: Engineer Networking

Role: L1 Engineer

Location: Chennai (Ambit IT Park)

Shifts: Flexible to work in Night Shifts

Job Responsibility:

• 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 (via Phone Support)

• Timely handoff (escalation) of cases that require technical or political to L2 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

• Valuable troubleshooting approach (from Level 1 to 7 of OSI)

Look into Wireshark capture

1:ARP learning process and it's flavour

2:How switch learns the mac address

3: DHCP server and Client communication in same network and different network

4:OSI headers

Protocol and port number working

OSI layer model and its learning of encapsulation and decapsulation

5: IP Addressing and Subnetting

6: Difference between layer two and three switch

7: DHCP, Switching and Routing with OSI headers

STP

Vlan

Trunk and Access port

📌 Network Engineer (Chennai)
🏢 Pmr Softtech
📍 Chennai