OBJECTIVE

• To seek a challenging position in a company where I can use my knowledge and experience for the development of company and myself.

SUMMARY

• Network Engineer with Eight (8) years of expertise in Implementation, Administration, Operations and troubleshooting of enterprise data networks.
• Working experience of networking equipment such as Cisco routers, Cisco switches, Cisco firewalls and Cisco F5 load balancers.
• Experience on configuration, installation and Troubleshooting as a part of network outage resolution on large enterprise environment.
• Worked on Cisco Catalyst series 2900, 3560, 3750, 4500, 4900, 6500 and Cisco 1800, 2600, 3600, 7200, 7600 routers.
• Worked on Nexus platform 7010, 5K series (5548, 5020 and 5010) and FEX (2248, and 2232) and deployed VPC, VDC and OTV and successfully implemented VSS on the cisco catalyst switches.
• Implemented and configured F5 Big - IP LTM-3900, and 6900LOAD BALANCERS, maintained policies.
• Strong working experience on Firewalls, ACS, Cisco ASA 5540 Series.
• Proficient hands on experience in configuration & troubleshooting of routing protocols and deployment of OSPF, EIGRP, BGP and Policy routing on Cisco Routers.
• Experience in implementing, maintaining and troubleshooting L2 switching tasks such as VLANs, VTP, VLAN Trunking using ISL and 802.1Q, STP, RSTP, PVST+, Inter-Vlan routing, CEF and DCEF.
• Implemented redundancy with HSRP, VRRP, GLBP, Ether channel technology (LACP, PAgP).
• Implemented traffic filters using Access-lists, Distribute-Lists, Route Maps and route manipulation using Offset-list.
• Good experience in physical infrastructure like structured cabling, IP address management, Racking, Stacking.
• Managed inventory of all network hardware, Management and Monitoring by use ofSSH, Syslog, SNMP, NAT.
• Experience in T1/E1/T3 technologies and different LAN & WAN technologies.
• Proficient in using MS Visio for documentation.

TECHNICAL SKILLS

Routers: Cisco 7600,7200,3800,3600,2900,2800,2600

Switches: Cisco Catalyst 6500, 4500,3750,3560,2960 Nexus 7000, 5000 series

Network Security: Cisco ASA 5540 series, IPSEC and SSL VPN, IPS/IDS, IOS Firewall featuresDMZ set up

Load Balancer: F5 Network (Big-IP), LTM 6900 and 3900.

Routing: OSPF, EIGRP, BGP, RIP and operations like Route Filtering, RedistributionSummarizationSwitching VLANs, Dot1Q, VTP, STP, RSTP, VLAN MapsGateway Redundancy HSRP, GLBP

Layer Two switching: CEF, DCEFNexus VPC, OTV and Fabric path

LAN/WAN Technologies: Ethernet, HDLC, PPP, channelized link (E1/T1, T3, DS3), optical standards (SDH, PDH)

AAA Architecture: TACACS+, RADIUS

Network Monitoring and Management Tools: CA Spectrum, Wireshark and GNS3, Solar winds.

PROFESSIONAL EXPERIENCE

Confidential, Boston, MA

Network Engineer

Responsibilities:

• In the process of Data center fabric migration, performed migration from legacy Catalyst 6513 Switches to Nexus7010 switches adhering to ITIL change Management Procedure.
• Configured and maintained VPCs with 7010 and 5548 in the network. Also configured and maintained VDCs in 7010 switches, maintained VRFs in those separate VDCs.
• Worked with Sup 2E for 7010 switch, F cards for L2 switching and few M cards for L3 proxy routing purposes for F cards.
• Used Fabric Extenders like 2248TP GE series for the top of the rack solution and used 5548P for the end of the row solution.
• Scheduled maintenance of Nexus (2248, 5548, and 7010) switches so that there are no Orphan ports in the network, and all Users to be dual homed, so that they have sufficient redundancy.
• Performed nexus based multihoming using features like VPC and worked on network virtualization using nexus VDCs.
• Design and Implemented LAN refresh having Nexus 5K, 2K (VPC,FEX) in datacenter, Cisco 6500 and 4500-x at the core and distribution layer(VSS), 4500 chassis, 3750x and 3850 stack switches at the access layer.
• Worked on 3600, 7200, 7600 series Cisco routers.
• Configured and maintained EIGRP, OSPF and BGP on Cisco Routers.
• Performed network administration tasks such as creation and management of VLANS, Port security, Trunking, RPVST+, Inter-VLAN routing.
• Used DHCP to automatically assign reusable IP addresses to DHCP clients via INFOBLOX IPAM.
• Maintained TACACS+ and RADIUS servers for AAA authentication and user authentication.
• Performed Network Security Assessment and implemented security features such as network filtering, SSH, AAA, SNMP access lists, VTY access lists, EIGRP MD5 authentication, and HSRP authentication.
• Used Cisco ASA 5540 firewall for Enterprise security, configured ACL’s for Internet requests to Server Farm in LAN and DMZ.
• Maintained F5 BIG-IP LTM 6900 for providing application redundancy, load balancing and policies.
• Monitoring using NMS for different network alerts.
• Troubleshooting and administration of WAN on cisco 7600 WAN hub routers at hub routers at data center.
• Configuring multiple IPSEC tunnels for encryption on WAN circuit.
• Used internal network monitoring tools (Solar Winds & Opmanager) to ensure network connectivity and Protocol analysis tools to assess the network issues causing service disruption.
• Proper documentation of all the technical task.

Confidential, Boston, MA

Network Engineer

Responsibilities:

• Responsible for implementing, maintaining, and troubleshooting exiting technologies and integrating new ones.
• Installed, Configured and maintained 2600, 3600, 7613 Cisco Routers and 3750, 4500 and 6500 series Cisco Switches.
• Performed VSS on cisco catalyst 6500 series switches.
• Configured and managed Cisco access layer routers and switches & carried out route redistribution & manipulated route updates using distribute lists, route-maps & administrative distance, and offset-lists.
• Configured routing protocols like EIGRP, OSPF & BGP and troubleshooting layer3 issues.
• Learned and Tested various BGP attributes like local preference, MED, Weight and replicated issues in the testing environment lab.
• Configured subnets, access lists, reflectors and route redistribution.
• Scalability of OSPF by filtering of Intra, Inter and external OSPF route.
• Used various BGP attributes and various route-filters such as prefix lists, route-maps to permit deny routes and to change various attributes.
• Implemented route redistribution between OSPF and EIGRP.
• Configured STP for loop prevention and VTP for Inter-VLAN Routing.
• Implemented port aggregation & link negotiation using LACP and PAGP.
• Involved in design, implementation and configuration of HSRP for load balancing on L3 switches on different location of office on the switched network.
• Configured and deployed BIG-IP LTM 6900 for providing application redundancy and load balancing.
• Configured Client VPN technologies including Cisco’s VPN client via IPSEC.
• Troubleshot issues and outages on Trunks and Router interfaces and firewalls extensively.
• Prepared documentation and network diagram in Microsoft Visio for all the task undertaken.
• Provided support for troubleshooting and resolving customer and user reported issues.
• Maintenance and Troubleshooting of connectivity issues using tools like ping and traceroute.

Confidential

Network Engineer

Responsibilities:

• Performed routine network maintenance tasks such as configuring and managing printers, copiers, and other miscellaneous network equipment.
• Performed scheduled Virus checks and updates on all servers and desktops.
• Assisting peer engineers for on-site management including wiring technicians.
• Got Hands-on experience in maintaining and troubleshooting RIP, OSPF and EIGRP routing protocols.
• Configured RIP and EIGRP on 2600, 2900and3600 series Cisco routers.
• Implemented VTP and trunking protocols (802.1q and ISL) on 3560, 3750 and 4500 series Cisco Catalyst switches.
• Performed IOS upgrades on 2900, 3500 series Cisco Catalyst switches and 2600,3600 series Cisco routers using TFTP.
• Worked on installation, maintenance, and troubleshooting of LAN/WAN(ISDN)
• Involved in operations and administration of WAN consisting Ethernet Handoffs, T1, DS3, and Optic Fiber Handoffs.
• Configured Access List (Standard, Extended, and Named) to allow users all over the company to access different applications and blocking others.
• Configured STP for loop prevention and VTP for Inter-VLAN Routing.
• Done troubleshooting of TCP/IP problems and connectivity issues in multi-protocol Ethernet environment.
• Worked on network-based IT systems such as Racking, Stacking and Cabling.