SUMMARY

• 8 years of experience in Routing, Switching and Firewall Security with Cisco hardware/software including hands - on experience in providing network support, installation and analysis for a broad range of LAN / WAN/MAN communication systems.
• Strong Knowledge in WAN technologies including E3,E1,T1,T3, ISDN, HDLC, Point to Point, ATM and Frame Relay and PPP.
• Experience in Cisco: Physical cabling, IP addressing, Wide Area Network configurations (Frame-relay & MPLS).
• Worked on network topologies and configurations, TCP/IP, UDP, Frame Relay, Token ring, bridges, routers, hubs and Switches.
• Experience in L2/L3 protocols like VLANS, STP, VTP, MPLS and Trunking protocols.
• Expert in configuration of Virtual Local Area Networks (VLANS) using Cisco routers and multi-layer Switches and supporting STP, RSTP, PVST, RPVST along with trouble shooting of inter VLAN routing and VLAN trunking using 802.1q.
• Configuring and implementing routing protocols including RIP, TCP/IP, and RIP v1/v2, OSPF, EIGRP, ISIS and BGP.
• Well Experienced in configuring protocols HSRP, GLBP, VRRP, ICMP, IGMP, PPP, PAP, CHAP, and SNMP.
• Configuring Nexus 2000 Fabric Extender (FEX) which acts as a remote line card (module) for the Nexus 7000. Configuring VDC & VPC in Nexus 9k, 7k, 5k and 2k.
• Experience in working with IPSEC Site to Site, Remote VPN using different encryption methods.
• Experience in installing and configuring DNS, DHCP server.
• Experience in installing, configuring and troubleshooting of Checkpoint Firewall and Juniper SSG series.
• Experience with convert Checkpoint VPN rules over to the Cisco ASA solution. Migration with both Checkpoint and Cisco ASA VPN experience.
• Involved in designing and commissioning WAN infrastructure for redundancy in case of link failure. Responsible for technical evaluation, troubleshooting, overall project management, problem solving and turn-up of the service with the ISP.
• Hands on Knowledge/experience on F5 load balancers, its methods, implementation and troubleshooting on LTMs and GTMs.
• Worked extensively in Configuring, Monitoring and Troubleshooting Cisco's ASA 5500/PIX security appliance, Failover DMZ zoning & configuring VLANs/routing/NATing with the firewalls as per the design.
• Experienced working on network monitoring and analysis tools like, SOLAR WINDS, whatsup Gold, CISCO works and RIVER BED and Wireshark.
• Good knowledge in WAN Technologies like ACL, NAT and PAT, IPsec and VPNs.
• Working experience with REMEDY for ticket change management process.
• Experience in Physical cabling, IP addressing, configuring and supporting TCP/IP.
• Efficient at use of Microsoft VISIO/Office as technical documentation and presentation tools.

TECHNICAL SKILLS

Network Configuration: Advanced switch/router configuration (Cisco IOS access list, Route redistribution/propagation).

F5 Network: GTM, LTM, Enterprise Manager

Cisco Routers: Cisco GSR 12416, 12418, Cisco 7200vxr, Cisco 3640, Cisco 3600

Redundancy and management: HSRP, RPR, NSF/NSR

Physical interfaces: Fast Ethernet, Gigabit Ethernet, Serial, HSSI, Sonet (POS)

Layer 2 technology: VLAN, VTP, VMPS, ISL, dot1q, DTP, Spanning-tree, PVST

Layer 3 Switching: CEF, MLS, Ether Channel

QOS: CBWFQ, LLQ, WRED, Policing/Shaping.

Switches: Catalyst 6500, MSFC, MSFC2, 7600, 3700, 3500

Routing Protocols: IGRP, EIGRP, OSPF, BGPv4, MP-BGP,RIP

WAN Protocols: HDLC, PPP, MLPPP

Circuit switched WAN: T1/E1 - T3/E3/OCX (Channelized, Fractional & full).

Packet Switched WAN: ATM, FRAME RELAY, MPLS VPNs

Security Technologies: Cisco FWSM/PIX/ASDM, Juniper SRX, Cisco ASA, Checkpoint, Palo Alto.

Operating Systems: Microsoft XP/Vista/7, UNIX, Linux (Redhat, Opens use, Fedora), Windows Servers 2003/2008, Windows MS-Office.

PROFESSIONAL EXPERIENCE

Confidential, MD

Sr. Network Engineer

Responsibilities:

• Configured Routing protocols such as RIP, OSPF, EIGRP, static routing and policy based routing.
• Team member of Configuration ofCisco7206 router with VPN and Configuration of Catalyst switches.
• Configuration 7500, 7200 with OSPF and catalyst 6505, 4500, 3550 switches with various VLAN.
• Create and testCisco router and switching operations using OSPF routing protocol, ASA 5500 Firewalls, and MPLS switching for stable VPNs.
• Troubleshooting the Network Routing protocols (BGP, EIGRP and RIP) during the Migrations and new client connections.
• Configuration and troubleshooting link state protocols like OSPF in single area and multiple areas.
• Redesign of Internet connectivity infrastructure for meeting bandwidth requirements.
• Optimized performance of the WANnetworkconsisting of Cisco 3550/4500switches by configuring VLANs.
• Configured VLANs with 802.1q tagging. Configured Trunk groups, ether channels, and Spanning tree for creating Access/distribution and core layer switching architecture.
• Configured BPDU Guard, port-fast, uplink fast and other spanning tree features.
• Configuration and troubleshooting of Cisco 2500, 2600, 3000, 6500, 7500, 7200 Series routers.
• Experience working with Nexus 7010, 5020, 2148, 2248 switches.
• Implementation and configuration of F5 Big-IP LTM-6400 load balancers
• Installation and administration of Checkpoint R 75.40 Firewall.
• Implemented firewall policy change on the Checkpoint clusters
• Deploying Layer 2 security in Server Farms by configuring switch for 802.1x port based authentication.
• Implemented, configured BGP WAN routing, converting OSPF routes to BGP (OSPF in local routing).
• Technical assistance for LAN/WAN management and complex customer issues.
• Provided support for troubleshooting and resolving Customer and user reported issues.
• Worked with Network Engineer’s in the installation and configuration of firewalls.
• Performed route redistribution & manipulated route updates using distribute lists, route-maps & administrative distance, offset-lists.
• Involved setting up the TFTP server for backing up the IOS images and configuration files of Cisco Routers and Switches and troubleshooting the file servers.
• Upgrades, installs, configuration and administration security and monitoring tools on Linux.
• Excellent in patches and packages installation on Linux/Unix Environment.
• Responsible for network evaluations, troubleshooting a variety of network problems, and implementing various software and hardware upgrades efficient performance.
• Generating RCA (Root Cause Analysis) for critical issues of layer1/layer2/layer3 problems.
• Provided redundancy to the network, implemented hot standby routing protocol (HSRP) and Load sharing for effective utilization of routers.
• Configuring, implementing and troubleshooting VLAN’s, VTP, STP, Trunking, Ether channels.
• Configuring and maintenance of layer2 switching tasks which advocate VLAN, VTP, STP, RSTP, PVST, RPVST, configuring of ether channel with LACP and PAGP along with troubleshooting of inter-VLAN routing.
• Packet capturing, troubleshooting on network problems with Wireshark, identifying and fixing problems
• Implementing, configuring, and troubleshooting various routing protocols like RIP, EIGRP, OSPF, and BGP etc.
• Maintenance of F5 Load balancers-6600/6800
• Performing network monitoring, providing analysis using various tools like Wireshark, Solarwinds etc.
• Cisco ASA/Checkpoint Firewall troubleshooting and policy change requests for new IP segments that either come on line or that may have been altered during various planned network changes on the network.
• Responsible for Cisco ASA 5500 firewall administration, Rule Analysis, Rule Modification.
• Generating RCA (Root Cause Analysis) for critical issues of layer1/layer2/layer3 problems.

Confidential, Owings Mills, Maryland

Sr. Network Engineer

Responsibilities:

• Serve as part of a team of network engineers responsible for base wide network troubleshooting of Cisco Layer 3, Layer 2 devices.
• Design, implement and administer IPv4 enterprisenetworkinfrastructure utilizing Ciscorouters.
• Experience working with design and deployment of MPLS Layer 3 VPN cloud, involving VRF, Route Distinguisher (RD), Route Target (RT), Label Distribution Protocol (LDP) & MP-BGP
• Implemented antivirus and web filtering on Cisco devices.
• Implementation and operational support of routing protocols and topologies including BGP, OSPF, MPLS, DMVPN
• Implemented EIGRP, OSPF & BGP and configured security policies- NAT, PAT & Access Control Lists (ACL)
• Experience working with cat6000, 6500, 7600 devices
• Identify, design and implement flexible, responsive, and secure technology services
• Experience innetworksecurity in a telecommunications environment.
• Managed LAN and WirelessNetworkand performed troubleshooting On LAN, WLAN, Customer Modems (NTL 250, MOTOROLA) And CPE Router
• Experience in Configuring, upgrading and verifying NX-OS operation system with OSPF, BGP.
• Tests scope to include application modules, integration layer and full end-2-endtesting incorporating various device & web-top clients
• Demonstrated that thevideosegmented system works reliably with the actual satellitenetworkgoing through the core node,networkinfrastructure accelerator, and receive via satellite modem.
• Experience working with Transaction Language 1 (TL1), which is used as a management protocol in telecommunications.
• Experience converting Cat OS to Cisco IOS on the Cisco 6500 switches
• Experience with deploying PIM Sparse-mode/Dense-mode multicasting in Campus locations.
• Actively involved in Switching technology Administration including creating and managing VLANS, Port security- 802.1x, Trucking 802.1Q, RPVST+, Inter-VLAN routing, and LAN security on Cisco Catalyst Switches 4507R+E, 6509-E and Cisco Nexus Switches 2232, 5596, 7009.
• Tested various networks, which works on the protocols like of TCP/IP (IP, TCP, UDP, SNMP, DNS, DHCP, FTP, HTTP, HTTPS, ICMP, SMTP, ARP, IPSEC and NAT). datacenter environment with Nexus 2K FEX, 5500 and 7010, Cisco Catalyst switches, F5 LTM, Cisco ASA's, Cisco ISR and ASR Routers.
• Involved in design and implementation of Data Center Migration, worked on implementation strategies for the expansion of the MPLS VPN networks
• Assisted in the installation of a new DS3 MPLS WAN backbone implemented throughout the entire corporatenetwork.
• Implemented Positive Enforcement Model with the help of Palo Alto Networks.
• Innovated with support of Palo Alto for remote and mobile users and for analyzing files for malware in a separate (cloud-based) process that does not impact stream processing. Worked on different phases of testing such as Sanity Testing, Functionality Testing, Smoke Testing, System Testing, Installation Testing, Compatibility Testing, Regression Testing, Stress Testing and UAT Testing.
• Troubleshooting of complex LAN/WAN infrastructure that include routing protocols EIGRP, OSPF & BGP, MPLS.

Confidential, Chelmsford, MA

Network Engineer

Responsibilities:

• Design and engineering of low latency HFT network
• Implementation of Cisco Nexus 3000/5000, 4900M/4500 SUP 7E as low latency networking switches.
• Design and engineering of Market data multicast network with NYSE, NSDQ, CME, CBOE, BATS.
• Implementation and Configuration of various MD feeds.
• Supporting various MD related issues such as microburst analysis, gap detection, packet loss.
• Work with Applications team to identify latency cause and remediate it.
• Led design and engineering of various projects with nexus technologies.
• Work with PM and business team to gather requirements. Prepare network design, peer review and documentation.
• Hands on experience with Cisco ACE Load balancers.
• Experience in configuring responder policies using the header values.
• Routed the traffic based on URL path, header values to different backend servers.
• Experience with Nexus 5000 3000 and 2000 series switches.
• Upgraded Nexus 5k switches.
• WAN traffic optimization using Riverbed products.
• Experience with convertCheckpointVPN rules over to the Cisco ASA solution. Migration with Cisco ASA VPN experience
• Load balancing using F5 products.
• Converted F5 Legacy 3DNS config's to TMSH format, F5 GTM 8900's; lead migration in this same effort.
• Created F5 Strategy for Aurora Health Care
• Created the Aurora's first Support documentation for the Day-to-Day Support for all of the F5 instances
• Applied both inbound and outbound access-lists on PIX firewalls as well as static, conduit statements and created NAT pools for private IP addresses. Installed and configured Microsoft Exchange server 2000 including email routing and setup, security parameters, monitoring and maintenance.

Confidential, El Segundo, CA

Network Engineer

Responsibilities:

• Worked onCiscoLayer 2 switches (spanning tree, VLAN).
• WAN Infrastructure running OSPF & BGP as core routing protocol.
• Configuration and troubleshooting of Cisco 2500, 2600, 3000, 6500, 7500, 7200 Series routers.
• Configured HSRP and VLAN trucking 802.1Q, VLAN Routing on Catalyst 6500 switches.
• Optimized performance of the WANnetworkconsisting of Cisco /4500/6500 switches by configuring VLANs.
• Configuration 7609, 7606 with catalyst 6505, 4500, 3550 switches with various VLAN.
• Configured and troubleshoot EIGRP.
• Took entire Avaya Definity Dial Plans and created loadable scripted Translations Package for Zero Downtime Integration within the entire spectrum of services.
• Worked close with IBM Partners inside Avaya to deploy a full working Avaya Integrated
• Troubleshooting IOS related bugs based on past history and appropriate release notes.
• Work on different connection medium like Fibre and Copper Connectivity.
• In-depth expertise in the implementation of analysis, optimization, troubleshooting and documentation of LAN/WAN networking systems.
• Planning and configuring the routing protocols such as OSPF, RIP, and Static Routing on the routers.
• Performed and technically documented various test results on the lab tests conducted.
• Planning and configuring the entire IP addressing plan for the clients'network.
• Experienced in facing the Bluecoat and Palo Alto product lines, up to pre sales type of function.
• Demonstrated experience with Check Point, Cisco, andPaloAltoNetworks solutions
• Supported networks, which are comprised of 2000+Ciscodevices.
• In-depth expertise in the implementation of analysis, optimization, troubleshooting and documentation of LAN/WAN networking systems.
• WAN Infrastructure running OSPF as a core routing protocol.
• Follow process & procedures for change & configuration management.
• Supported nationwide LAN infrastructure consisting ofCisco4510 and catalyst 6513.
• Deployed the switches in high availability configuration with HSRP.
• Configured udld, port-fast, uplink fast and other spanning tree features.
• Support various Series ofCiscoRouters like 7200/7600 series.
• Support Complex 6500 /5500 Series Switches.
• NetworkMonitoring using tools likeCiscoWorks 2000.
• Troubleshootnetworkproblems using Packet Analysis tools like Ethereal.
• Worked extensively in Configuring, Monitoring and Troubleshooting Cisco's ASA 5500
• Configured RIP, PPP, BGP and OSPF routing.
• Worked on ASA (5540/5550) Firewalls. Implemented Security Policies using ACL, Firewall, IPSEC, SSL, VPN, IPS/IDS, AAA (TACACS+ & RADIUS).
• Understanding of JUNOS platform and worked with IOS upgrade of Juniper devices.
• Efficient at use of Microsoft VISIO/Office as technical documentation and presentation tools.
• Create and testCisco router and switching operations using OSPF routing protocol, ASA Firewalls, and MPLS switching for stable VPNs.
• Experience working with Nexus 7010, 7018, 5020, 2148, 2248 devices.
• Experience working with High performance data center switch like nexus 7000 series.

Confidential, San Antonio, TX

Network Support Engineer

Responsibilities:

• Experience in Cisco 7200, 7600 routers, Cisco 2800 3700 series switches: Physical cabling, IP addressing, Wide Area Network configurations (Frame-relay and ATM).
• Performed troubleshooting, while maintaining trouble ticket tracking, following internal/external escalation procedures and customer notifications. Configured Cisco Routers for OSPF, RIP, IGRP RIPv2, EIGRP, Static and default route.
• Configured the Cisco router as IP Firewall and for NATting.
• Supporting Development team for the access to corporate network and outside world. Providing access to specific IP, Port filter and port access.
• Switching (Ethernet) related tasks included implementing VLANS and configuring ISL trunk on Fast-Ethernet channel between switches.
• Configuring routers and send it to Technical Consultants for new site activations and gives online support at the time of activation.
• Installed and configured PIX 520, 525, 535 series firewalls, configured standard and extended access-lists and policy- based filters.
• Work with Help Desk for circuit troubleshooting to give Support to the Tech persons at the site.
• Configured ASA 5510 appliance and VPN.
• Responsible for implementing Qos prioritizing voice traffic over a data.
• Implemented SNMP on Cisco routes to allow for network management. Completed the installation and configuration of T1, T3 & OC3 circuits.
• Troubleshoot TCP/IP problems, troubleshoot connectivity issues.