Abhijeet Singh

Experience

• 

  Capgemini Engineering

  Dec 2020 - Sept 2023

  Nexus Troubleshooting and Root Cause Analysis: - Diagnose and resolve critical issues on Cisco Nexus switches (9K, 7K, 3K, 2K). - Troubleshoot vPC inconsistencies, peer-link failures, and packet forwarding issues. - Perform packet captures and analyze platform-specific logs to find root causes. - Handle escalations and work with senior engineers to resolve complex hardware/software bugs.- Customer Interaction and Support: - Serve as a primary point of contact for customers during outages and performance issues. - Conduct remote troubleshooting sessions, addressing misconfigurations and synchronization problems. - Provide detailed documentation, analysis, and actionable recommendations for preventing issues.- Upgrade Planning and Implementation: - Collaborate with customers to develop upgrade strategies for Nexus platforms. - Recommend software versions and patches based on Cisco advisories and customer needs. - Assist in real-time upgrade execution, ensuring minimal downtime and post-upgrade validation. - Perform post-upgrade health checks and assess network performance.- Proactive Recommendations and Best Practices: - Suggest configuration changes, feature enhancements, and hardware optimizations. - Provide best practices for vPC design, redundant architecture, and firmware management. - Advise on capacity planning and scalability to meet future demands.Network Protocols / Technologies:Routing Protocols - Static, OSPF, BGP, EIGRP, BFDSTP,DTP, VTP, (v1&v2), Native VLAN, Trunk & Access Port configuration and troubleshootingEIGRP, OSPF &BGP ConfigurationVLAN, VRRP, HSRP,GLBPNAT, Access List, TCP/IP, DHCP, DNSKnowledge of Ether channel, Inter VLAN Routing, TCP/IP, DHCP, DNS Show less

  • Associate Network Engineer II

    Apr 2023 - Sept 2023

  • Associate Network Engineer I

    Jul 2021 - Apr 2023

  • Network Traniee

    Dec 2020 - Jul 2021
• 

  BT Group

  Sept 2023 - now

  2nd line Data Engineer

  - Cisco Nexus Platforms (9K, 7K, 3K, 2K): - Troubleshoot and resolve routing, switching, and vPC configuration issues. - Resolve vPC peer-link inconsistencies, sync issues, and configuration mismatches. - Diagnose asymmetric routing and switching loops using SPAN and RSPAN for packet captures. - Perform firmware upgrades on Nexus 9K, 7K, 3K, and 2K with minimal downtime.- Cisco Catalyst Series (2960, 3850, 9300) and Cisco 887 Routers: - Upgrade and troubleshoot Catalyst switches (2960, 3850, 9300) for smooth hardware transitions. - Diagnose and replace failed components while configuring to meet security policies. - Troubleshoot WAN/LAN routing issues on Cisco 887 routers.- Meraki SD-WAN (MR, MS, MX Series): - Experience with Meraki MX450, MX250, MX68, and MR38 series upgrades. - Troubleshoot VPN tunnels, traffic shaping policies, and performance issues on Meraki platforms.- Cisco Viptela SD-WAN: - Deploy SD-WAN solutions, including vBond, vSmart, vEdge, and cEdge. - Configure and manage Viptela SD-WAN solutions for secure and reliable connectivity. - Manage SD-WAN policies, optimize routing, and ensure seamless integration into enterprise networks.Network Protocols / Technologies:Routing Protocols - Static, OSPF, BGP, EIGRP, BFDSTP,DTP, VTP, (v1&v2), Native VLAN, Trunk & Access Port configuration and troubleshootingEIGRP, OSPF &BGP ConfigurationVLAN, VRRP, HSRP,GLBPNAT, Access List, TCP/IP, DHCP, DNSKnowledge of Ether channel, Inter VLAN Routing, TCP/IP, DHCP, DNS Show less