Network Switching (Lan Technology)

Tata Consultancy Services; Chennai District; On-site; INR 900,000 - 1,800,000; Full time

Job summary

Tata Consultancy Services in Chennai is seeking a seasoned Network Engineer to manage and troubleshoot large-scale switching and routing infrastructure. You will work with Cisco Nexus switches, ISR routers, and Aruba equipment, handling IPSEC VPNs, route redistribution, and L2/L3 traffic flows.

The role emphasizes experience with MPLS, GRE, SD-WAN, VPNs, and network monitoring tools like Wireshark and NetFlow; familiarity with data centers and complex routing protocols (BGP, OSPF, EIGRP) is

Qualifications

• Strong understanding of high-end Cisco switches and ISR routers.
• Experience with VPC, VSS, HSRP/VRRP, Cisco ACI Leaf–Spine design, Wireshark, NetFlow.
• Knowledge of MPLS, GRE, SD-WAN.

Skills

Cisco networking

Routing & Switching

IPsec VPNs

Network troubleshooting

SD-WAN

HSRP/VRRP

Wireshark

NetFlow

MPLS

GRE

Tools

Nexus switches (7K/5K/2K)

ISR routers (4000/7200/3800/2800)

Aruba switches

L2/L3 traffic analysis

Job description

• CCNA(mandatory) /CCNP certification is preferred.
• Strong Understanding of Higher end CISCO switches and ISR routers (Nexus7K, 5K, 2K, Cisco 6500, 4500, 3750 and 2900) and Routers (4000, 7200,3800 and 2800).
• Should be able to handle complex Routing and Switching issues, route redistribution, IPSEC /Crypto issues,
• Preferred to have work experience and knowledge on VPC, VSS, HSRP/VRRP / Cisco ACI Leaf – Spine Design , Wireshark , Net flow, Good understanding of MPLS, GRE / SD-WAN Cloud.
• Knowledge/Hands-on of HP Aruba Switches.
• Experience of managing large scale network infrastructure and Data Centres in accordance to industry best practice.
• In depth knowledge of configuring and troubleshooting switching technologies like STP, VTP, GRE and IPSEC Tunnels , L2 and L3 best practices of Implementation Cisco Devices along with L2 Traffic Flow analysis.
• In depth knowledge of configuring and troubleshooting routing protocols including static, dynamic (BGP, OSPF and EIGRP) and PBR.
• Preferable Knowledge on Firewall, Load Balancers, Wifi

Preferred to have work experience and knowledge on VPC, VSS, HSRP/VRRP / Cisco ACI Leaf – Spine Design , Wireshark , Net flow, Good understanding of MPLS, GRE / SD-WAN Cloud.

Knowledge/Hands-on of HP Aruba Switches.

In depth knowledge of configuring and troubleshooting routing protocols including static, dynamic (BGP, OSPF and EIGRP) and PBR.

Preferable Knowledge on Firewall, Load Balancers, Wifi