Rahul Tomar Email & Phone Number

Gurugram, Haryana, India

Identify, understand and document our clients’ networking and outsourcing requirements; provide design support during the bid phase where required and post contract.Produce cost-effective technical solutions in order to achieve business objectives.Working on the Nexus legacy to ACI Datacentre migration projects.Designed and implemented VMware NSX-T infrastructure for network virtualization, resulting in improved security and simplified network managementProduce network design documents both High Level Designs (HLD) & Low Level Designs (LLDs) in accordance with the agreed network design architecture.Working with solution Architects & Engineering teams for input and to understand and incorporate changes in the designs producedTechnical risk assessment in a proposed solution.Network implementation & support activitiesProvide and drive complex, most critical and usually most costly network infrastructure solutions at both individual contribution & team level.Currently handling network of UK based bank (NBS). Responsible for designing new solutions and designing end to end network based on customer requirement.Specialization:Design, implementation troubleshooting of complex LAN and WAN Infrastructure. Good knowledge in Routing Protocols EIGRP, OSPF and MPLS VPN, BGP, LAN Switching, (VLANs, STP, Redundancy protocols, SPAN, Link bundling protocols) Expertise (Configuration and Troubleshooting) on all types of Cisco Routers and switches.Nexus Switching Technologies- N2K, N5K and N7K and N9K hardware, Cisco ACI, Cisco ASR, F5 load balancer.

Project: Cisco TAC (Datacenter team) (Jan2021-Till date) • Working as a TAC Engineer in Cisco Data Center team (Nexus).• Experience in configuring and carrying out in depth troubleshooting on Cisco Data Centre products like Nexus 9K, 7K, 6K, 5K, 3K & 2K• - Implementing and troubleshooting Data Centre technologies such as vPC, vPC+, VDC, OTV, FEX, FabricPath and VxLAN.• - Expertise in troubleshooting complex network related issues including High CPU, Spanning-tree, Multicast, DHCP, QoS, IPv6, HSRP, Upgrades, port-security, Q-in-Q.• - Specialized in providing RCA and reproducing complex problems in the lab and filing new software bugs or enhancement requests.• - Troubleshooting network issues for connectivity breaks / Outages caused due to different reasons.• - Testing specific scenarios in the Lab and provide an analysis of an existing issue.• - Monitoring network traffic, understand TCP Interactions to isolate the issue to be with the Application or the network. Upgrading networks, which includes upgrading the firmware.

Noida, Uttar Pradesh, India

Project: Cisco (Cloud Managed Services) (Aug2014– Dec2020) • Work with multiple customers (DTV,GEICO, Shell, COX, TWC, SBSA, Vodafone, and Ricoh) as a Network Engineer for and handling and troubleshooting network issues.• Configuring, troubleshooting, and maintaining customer infrastructure, which includes all routing and switching issues.• Coordinating with cross-functional departments, vendors, Associate Partners, and International Carriers such as Level3, Global Crossing, AT&T, Verizon, and Century Link.• Analyze information, and create business plans, MOP to implement changes• Update the management and clients about the status of changes and issues arising out of them.• Implementing Network changes based on design and operational requirement.• Installing new WAN routers (ISR) for Service provider (COX and TWC)• Work with Remote hands to install/ Configure, replace modules, Sup cards, power supply etc. on Cisco ISR 4000 Series and 890 Series, Nexus (5500, 7000, 9000), Cisco 6500, Cisco ASA and FTD, Cisco Meraki devices.• Work with carrier for and circuit issue and new Internet, Ethernet, MPLS circuit turn up.• Work with tool team and Network vendor team for any platform and tool issue also provide RCA for any network outage.• Work with Cisco TAC to resolve bug related issues• Troubleshooting Utilization and memory related issues• Opening cases with TAC to initiate RMA for faulty parts• Basic understanding on F5 load balancer, Viptela SD-WAN.

Noida Area, India

Project: Cisco (Cloud Managed Services) (Aug2014– Dec2020)• Working with multiple customers (ADM, COX, TWC, SBSA, and Baskin) as a Network Engineer for and handling and troubleshooting network issues.• Configuring, troubleshooting and maintaining customer infrastructure, which includes all routing and switching issues.• Coordinating with cross-functional departments, vendors, Associate Partners and International Carriers such as Level3, Global Crossing, AT&T, Verizon, and Century Link.• Analyze information, and create business plans to implement changes• Update the management and clients about the status of changes and issues arising out of them.• Implementing Network changes based on design and operational requirement.• Work with Remote hands to install/ Configure, replace modules, Sup cards, power supply etc. on Cisco 7600 and 2800 routers, Nexus (5500, 7000), Cisco Meraki, Cisco WLC devices.• Working with carrier for ISDN troubleshooting.• Day to day working on CRS, ASR, 7600, 6500, Nexus (5500, 7000) and other cisco devices.• Working with TAC to resolve bug related issues• Troubleshooting Utilization and memory related issues• Opening cases with TAC to initiate RMA for faulty parts

Chandigarh Area, India

Working with Configuration Management providing support to Haryana Govt. State Wide Area Network (SWAN) project.Designing and implementation of BGP and OSPF routing protocol in SWAN project.Implementation of access-lists to enhance the performance of routing and security. IOS, up gradation, hardware up gradation and router backup. To provide professional technical support and troubleshooting for all critical issues.Configuration of the Cisco routers at Core and CE end.Working With Cisco Routers for troubleshooting the problems at Configuration LevelTo monitor systems, customer networks and products, and deal with alerts and events as appropriate.To lease with other relevant departments e.g. other service operation’s, Field Operations and Vendors etc. as appropriate. To act as an immediate next level contact for any customer concerns or issues

Gurgaon

Handling MPBN (Mobile Packet Backbone Network) for Maharashtra Gujarat and AP Circle.Resolve IP related issues in network. Troubleshooting of daily problems/complaints and provide support to circle team. Making cross-connections, Deletion and New Trail creation in OSN 2500 &3500, through U2000 and TJ5100 MUX.Configuration of Routers likes Juniper M120, M10i, J-4350 and Switches (Ex-4200), Cisco, HUAWEI routers as per traffic flow.Troubleshooting on routers and switches, reroute the traffic on redundant route in case of primary causes some problem.Working knowledge on M-2000, N-2000,U-2000& LMT toolsDaily health check up for core routers and switches and GB routers located at BSCs locations as well which are directly connected to MPLS network for GPRS traffic.Port configuration at routers and switches if any network element added in network.Continuously monitoring and troubleshooting on routers and switches ports through Cacti server.If port utilization crosses 80% BW of transmission media then raise the plan for BW augmentation to transmission team. Analysis of Daily/Weekly and Monthly Traffic reports and take necessary actions to improve Network Quality.Trouble ticket (TT) raising if any link get down due to media issue.With the help of L3 support team resolving hardware related critical issues.

Be-It, Information Technology, 1-With 70%

High School