SUMMARY

• 10 years experience in LAN/WAN technologies, Routing/Switching protocols and Wireless Technologies including TCP/IP protocol suite and multi - protocol routing in Cisco, Juniper and FortiNet environment.
• Excellent troubleshooting experience of intricate network and systems issues wif RIPv1/v2,OSPF, EIGRP and BGP.
• Experience installing, configuring and troubleshooting Catalyst (2900, 3500, 3700, 4500 and 6500 Series), Nexus (7000,5000 and 2000 Series) Switches, and Routers (2800, 3600, 4400 Series) and Wireless AP’s (1260, 3600) using CLI and GUI.
• Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Ether channel, STP, RSTP, and RPVST. Implementation of HSRP, VRRP,GLBP for Default Gateway Redundancy.
• Familiar wif IPv6, OSPF v3.
• Network security including NAT/PAT,ACL.
• Configuring Juniper SSG, FortiGate 60D and ASA firewalls 5510 and 5505.
• Working knowledge of network monitoring/management tools like Wireshark, Cisco Prime, Net Flow, PRTG, Solar Winds.
• Experience in diverse IT disciplines, including networking, technical support, programming, operating systems and system administration.
• Knowledge in preparing Technical Documentation and presentations using Microsoft VISIO/Office.
• Strong written and verbal communication skills, self-motivated, self-managed, result oriented, practical, always looking to learn and contribute.

TECHNICAL SKILLS

Cisco Routers: 2800, 3600, 4400, 3700,3800, 3900, 7600

Cisco Switches: 2900, 3500, 3700, 5000, 4500, 6500

Cisco Wireless: 1260 AP, 3600 AP

Other Hardware: Juniper SSG 140, Juniper SRX, Vyatta Firewall, F5 BIG-IP LTM Load Balancer

Networking: TCP/IP, UDP, ICMP, LAN, WAN, DHCP, DNS, FTP, TFTP, SNMP, ARP

Other Protocols: HSRP, NSRP, HA, GLBP, VRRP, QoS, IPv4, IPv6, IP SLA

Security: ACL, NAT/PAT, Juniper, FG 60D, ASA (5505, 5510) FirewallRouting: EIGRP, OSPF, BGP, MPLS

Switching: VLAN, VTP, STP/RSTP/RPVST

Operating Systems: MS Windows XP/Vista/Windows 7, Linux (Centos, Ubuntu, RedHat), CISCO IOS.

Applications: Wireshark, PRTG,CiscoPrime,SolarWinds,MS Office and MS Visio

Languages: Matlab, C, Labview,Pspice

Microsoft Office: ( Excel, Access, Power Point )

PROFESSIONAL EXPERIENCE

Senior Network Engineer

Confidential, MD

Responsibilities:

• Set BGP attributes values (Weight, Local Preference, AS-path, MED…) on routers to let AS select teh best path for incoming and outgoing traffic.
• Configure OSPF summarization on Area Border Routers and Autonomous System Border Routers.
• Opened VPN connections from LINUX boxes and Vyatta firewalls hosted on Amazon Web Services Cloud (AWS) and RackSpace and connected them to Juniper SSG and FortiGate 60D firewalls.
• Created Networks, subnets and Instances on AWS cloud and connected them to Internet gateway then to virtual and actual networks.
• Creating VPC on AWS and assigned it to specific zone as well as teh instances and its network interfaces.
• Configured Access HP switches 2530 series and connected them to Confidential terminals.
• Configured Distribution HP switches and connect them to FortiGate and Juniper firewall.
• Configured, setup and install FortiGate 60 D and Juniper SSG 140 Firewalls.
• Configured IPSEC VPN through GRE tunnel on firewalls.
• Open VPN connections and configured policies and UTM on Juniper and FortiGate firewalls
• Prepared VISIO diagram for new sites connected wif Confidential data center.
• Configuring and troubleshooting NSRP and High Availability on Juniper and FortiGate.
• Involved in upgrading IOS images and firmware.
• Creating zones, Virtual Routers VR, routing (Static, Dynamic), policies and addresses or subjects on Juniper and FortiGate firewalls.
• Giving recommendations about wat are teh recent best firewalls should be used depends on teh network environments.
• VPN troubleshooting using tcpdump, show security association, debug vpn ipsec and ike phases, checking aes encryption value, lifetime, preshared key on both vpn sides.
• Upgrading RedHat Linux, Cnetos Linux and Ubuntu Linux wif Open Swan software to create IPSEC VPN connection and configure teh above Linux boxes for encryption and decryption data between source and destination. Add persistent route on them to keep teh route table stable as much as possible and maintain teh network interface file as needed.
• Configured Juniper and FortiNet firewalls wif zones and controlled zones wif incoming and outgoing traffic as permit and deny services like http, https, rdp, icmp, icmp-echo..etc
• Used most powerful troubleshooting tools like tracert, tracerout, routeprint, ping, ipconfig/ifconfig, nslookup, netstat, analysis WireShark Capture file and looking for upnormal ip packet behaviors

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 teh customer.
• Used Layer 3 protocols like EIGRP, OSPF, and BGP to configure Routers in teh network.
• Implemented redundancy /failover using HSRP.
• Performed switching technology administration including VLANs, VDCs, inter-Vlan routing, trunking, link aggregation control protocol (LACP), link negotiation & fex-fabric.
• Configured VPN, ACL, and NAT in teh Cisco ASA 5540 firewall to allow only authorized users to access teh servers of teh internal network
• Involved in troubleshooting various layer 2 and layer 3 issues related to VRF and BGP routing.
• Supported acquisition by merging two different networks.
• Installed and configured Cisco Nexus 2148 T, 2242TP, 5548P, 5548UP, N7KM148GS-11L
• Worked on Nexus deployment methods ( Straight through using static pinning and dynamic pinning, and active-active using VPC )
• Used Network monitoring tools to ensure network connectivity and Protocol analysis tools to assess and pinpoint networking issues causing service disruption.
• Preformed IOS upgrades and reconfigured devices afterwards.
• Installed wireless routers, operating system, cabling (CAT 5, CAT 6 and termination, connectivity to switch rooms
• Configured Cisco routers wif Radius and TACACS authentication.
• Updated documentation as necessary.

Network Engineer

Confidential, IL

Responsibilities:

• Installed and configured Cisco 2600, 2800, 3600, 3800 routers and 2950, 3700, 6500 switches.
• Maintained and managed networks running EIGRP and BGP routing protocols.
• Installed and configured Cisco Nexus 2248TP, 2232PP, 5596T,56128T, N7KF248XP-25
• Configured peer-link to create VPC
• Configured route redistribution between OSPF and EIGRP in a multi-area OSPF network.
• Daily monitoring of network traffic using sniffers and access logs to troubleshoot and identify network issues.
• Performed Layer 2 administration including VLANs, Private VLANs, inter-VLAN routing, trunking, port aggregation
• Route redistribution and route update manipulation using route-maps, distribute lists and AD manipulation and link negotiation.
• Used network monitoring tools to ensure network connectivity and protocol analysis tools to assess and pinpoint networking issues causing service disruption.
• Worked wif engineering team to resolve tickets and troubleshoot L3/L2 problems efficiently.
• Preformed IOS upgrades and reconfigured devices afterwards.
• Updated documentation as necessary.
• Mapped, Network Diagrams and physical identification in MS Visio.
• Worked wif Radius and TACACS
• Worked wif policy based routing in a MPLS routing environment

Network Engineer

Confidential, MD

Responsibilities:

• Configuring and troubleshooting HSRP, BGP, OSPF, EIGRP, MPLS WAN, QoS and Route Maps.
• Troubleshoot connectivity issues involving VLAN’s, EIGRP, QoS etc.
• Support, monitor and manage teh IP network.
• Performance monitoring of various applications and web servers to maintain quality of service and network stability.
• Maintained core switches, creating VLAN’s and configuring VTP.
• Designed IP Addressing schemes, VLAN tables and Switchport assignments, Trunking and Ether-channel implementation.
• Gained hands on experience wif VRF, VLSM, STP, VTP, VLAN Trunking.
• Installed and set up Cisco routers and switches according to deployment plans.
• Applied access lists and NAT configurations based on implementation guidelines.
• Managed and developed network projects designed to strengthen network continuity and deploy security elements in an attempt to meet and exceed contract requirements, including system analysis and troubleshooting.
• Change management, monitoring network performance wif network tools.
• IP Distribution for existing devices and new devices as they were added.
• Preformed maintenance on equipment as necessary, performing device upgrades, modification of configurations, password changes and diagnostic testing.
• Worked wif vendors and Engineering team to test new hardware and procedures.
• Coordinated wif higher-level support and external vendors for resolution.
• Prepared and maintained documentation using MS Visio.

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 (NAT, DHCP, SNMP)
• Configured ACL to allow only authorized users to access teh servers.
• Implemented VLANs, DHCP server, DNS configuration, NAT/PAT in a small network environment.
• Configured Routing Protocol: single-area OSPF, RIPv2.
• Performed technical support, troubleshooting and maintenance of network equipment, installed and upgraded software and hardware equipment.
• Implemented WAN technologies like Frame relay, HDLC and PPP in teh branch office network connectivity.