SUMMARY:

• Having 6 + years of relevant professional experience in in installing, configuring and maintaining network devices such as Cisco Catalyst (2960, 3560, 3750, and 6500 series), Cisco Nexus (7000, 5000, 2000 series) Switches and Cisco Routers (7200, 1700, 2601, 7200 and 2800).
• Excellent troubleshooting experience of intricate network and systems issues with OSPF, EIGRP and BGP.
• Working technical knowledge of IPv6 addressing, configuration and routing with OSPF and EIGRP.
• Experience in VLAN configuration with 802.1q, VTP, STP and RSTP (802.1W).
• Experience in managing and securing remote access through designing and implementing various VPN technologies including IPSec, SSL, GRE, MPLS, Frame relay. Implementation of NAT /PAT.
• Working knowledge of Network Monitoring/Management tools such as Cisco Prime, Net flow, Wireshark, and TCPdump.
• Dealt with Simulation Tools such as OPNET, NS - 2, Packet Tracer and GNS-3.
• Knowledge of Cisco ASA firewalls, IPS/IDS, F5 Load Balancers, AAA (TACACS+ & RADIUS).
• Very strong interpersonal communications skills with ability to solve complex problems in a timely, productive manner. Detail oriented and hard-working team player

TECHNICAL SKILLS:

Routers/ Switches: Cisco 16xx/26xx/29xx/35xx/37xx/72xx Series,Cisco 29xx, 35xx, 35xx, 65xx Catalyst Series,Cisco 7000, 5000, 2000 Nexus Series

Firewalls/Load Balancers: ASA (5505/5510) Firewalls, F5 BIG-IP LTM

Routing Protocols: BGPv4, OSPF v2 & v3, EIGRP v2 & v3, VRRP, HSRP, GLBP

Switching Protocols: STP, RSTP, PVSTP, VTP, ARP

IP Services: DHCP, DNS, FTP, TFTP, SMTP

WAN technologies: ATM, ISDN, PPP, MPLS

Networking Technologies: IPSec, GRE, NAT/PAT, ACL, IPv6, Ether-Channel (PAgP, and LACP), VLANs, IP SLAs

Network Management: Cisco Prime (SNMP), Wireshark, Tcpdump, Solarwinds, Netflow, Zenoss

Programming & Databases: C #, .NET, PERL, MS SQL Server 2008, My SQL

Simulators: NS 2, OPNET

Tools: /Applications: MATLAB, MS Project 2010, MS Office, MS Visio

Platforms: Windows, MAC, UNIX, Linux

PROFESSIONAL EXPERIENCE:

Network Engineer

Confidential, IL

Responsibilities:

• Involved in complete LAN, WAN development (including IP address planning, designing, installation, configuration, testing, and maintenance).
• Provided Tier 2 support for network (Layer 3) related issues for the customer.
• Used Layer 3 protocols like EIGRP, OSPF, BGP to configure Routers in the network.
• Implemented and configured HSRP with EIGRPv2.
• Involved in switching technology using ether-channel, port security, and VLAN configuration.
• Performed switching technology administration including VLANs, inter-Vlan routing, trunking, port aggregation & link negotiation.
• Installed and configured DHCP server. Involved in troubleshooting of DHCP and other IP conflict problems.
• Configured VPN, ACL, and NAT in the Cisco ASA 5550 firewall to allow only authorized users to access the servers of the internal network
• Involved in troubleshooting various layer 2 and layer 3 issues related to MPLS, Multicasting, VRF and BGP routing using Wireshark.
• Performed route redistribution & manipulated route updates using distribute lists, route-maps & administrative distance.
• Created domain services, users and groups using admin console.
• Used Network monitoring tools to ensure network connectivity and Protocol analysis tools to assess and pinpoint networking issues causing service disruption.

Environment: Cisco routers 3700, 7200 and 7500; Cisco catalyst series switches 6500; Cisco ASA 5550 firewall.

Network Engineer

Confidential, IL

Responsibilities:

• Designed configured and implemented BGP, EIGRP, OSPF and RIP v2 in multi-protocol network environment.
• Installed, configured and maintained Cisco 7200 series VPN Router.
• Built LAN/ WAN TCP/IP network comprised of Cisco Switches (6500, 7000, 3750, 3500, and 2900).
• Developed an optimum IP Addressing schemes, VLAN tables, and network documentation and diagrams (Visio).
• Hands on experience on subnetting and VLSM, STP, VTP, VLAN trunking.
• Troubleshooting on all Cisco IOS and Catalyst switches on the network which included but was not limited to; 3700, 7200 and 7500 series routers and catalyst 6513 and 6509 switches.
• Monitored network traffic via network monitoring tools and sniffers in an attempt to troubleshoot network outages and intrusions by tracing their origin and destination.
• Work closely with configuring, maintaining and troubleshooting WAN links - ATM, Frame-relay, MPLS VPN.
• Configured and Implemented Site-to-Site VPNs at branch sites.
• Configured and implemented Remote Access VPN using Cisco’s VPN client via IPSEC.
• Maintained and managed the TCP/IP tracking table.
• Performing duties that included distribution of IP hostnames and IP addresses to devices in existence as well as newly added devices.

Environment: Cisco routers 3700, 7200 and 7500; Cisco catalyst series switches 6500; Cisco Layer 3 switches 3700.

Network Engineer

Confidential, GA

Responsibilities:

• Performed daily maintenance, troubleshooting, configuration, installation and documentation of all network components with in the network.
• Configuration of CISCO Routers (2800 Series) and 3550, 6500 series switches.
• TCP/IP network planning, Implemented IPv4 addressing, subnetting, route summarization and distribution.
• Configured routing with EIGRP, static routes and switching with VLANs, VTP, and STP.
• Configured Access lists on the boundaries of the network either inbound or outbound.
• Installed/upgraded operating system, anti-virus and monitoring tools. Setting up & maintenance of LAN & WAN networks.
• Enabled SNMP traps for Cisco Monitoring tool to monitor traffic and check the regular health of Servers and Network Devices.
• Configured wireless protocols, authentication mechanisms (802.11*, WPA, etc) and installed the Access Point as per the client requirements.
• Responsible for implementing and testing secure access for outside business partners into the client network for secured data transport.
• Respond to all system problems on a 7X24 basis and take part in on-call rotation

Environment: Cisco Routers (2800 Series), CISCO Switches (3550, 6500), Checkpoint firewall, Confidential /HP Servers, Zenoss.

Network Engineer

Confidential

Responsibilities:

• Involved in network upgrades and implementation.
• Diagnosed problems through troubleshooting skills, logic, research, and isolation steps.
• Performed routine maintenance of network hardware and software of LAN/WAN (Frame-Relay, NAT, DHCP, SNMP)
• Configured ACL to allow only authorized users to access the servers.
• Implemented VLANs, DHCP server, DNS configuration, NAT/PAT in a small network environment.
• Configured Routing Protocol: single-area OSPF, RIPv2.
• Implemented WAN technologies like Frame relay, HDLC and PPP in the branch office network connectivity.
• Installed wireless routers, operating system, cabling and termination, connectivity to switch rooms.
• Performed onsite installations, technical support, troubleshooting and maintenance of network equipment, installed and upgraded software and hardware equipment.
• Coordinated with higher-level support and external vendors for resolution.

Environment: Routers 2600, 3600; Switches 2500, 3500; Cisco catalyst series switches 2950, 3500. Cisco PIX firewall.

Network Support Engineer

Confidential

Responsibilities:

• Outlined daily activities and coordinated system maintenance.
• Managed logs of major events.
• Performed device maintenance checks, configuration and upgrades as necessary.
• Configured routing protocols: single-area OSPF in branch office network connectivity.
• Participated in on call support for troubleshooting various configuration and installation issues.