PROFESSIONAL SUMMARY:

• Network Engineer withn early 8 years of experience inindustry, which includes expertise in the areas of routing,switching and firewall.
• Hands on experience in configuring Cisco catalyst 2900, 3750, 4500, 6500 and Nexus 3000, 5000, 6000, 7000series switches and Cisco 2600, 2800, 3600, 3800, 7200, 7600 series routers.
• Design and configuring of OSPF, BGP on Juniper Routers (MX960, MX480) and SRX Firewall(SRX240, SRX550).
• Good experience on IPservices and In - depthexpertise inanalysis,implementation,troubleshooting & documentationofLAN/WAN architecture.
• In-depthknowledgeandhandful experienceonIPAddressing,Subnetting,VLSMandARP,reverse& proxy ARP, PingConcepts.
• Knowledgeofimplementingandtroubleshootingcomplexlayer2technologiessuchasVLANTrunks, VTP Ether channel, STP, RSTP andMST.
• Expert Level Knowledge about TCP/IP and OSI models.
• Experience with different Network Management Tools and Sniffers like SNMP, and Cisco worksto support 24 x 7 Network OperationCenter.
• Working knowledge ofnetworkmonitoring/management tools like Wireshark, TCPDump, Cisco Prime, Net Flow, PRGT, Solar Winds.
• Expert level knowledge of troubleshooting, implementing, optimizing and testing of static anddynamic routing protocols such asEIGRP, OSPF, BGP ability to interpret and resolve complex routetable problems.
• Implementation traffic filters on Cisco routes using Standard, extended Accesslist.
• Worked extensively in Designing, Implementing & Managing LAN, WLAN &WAN solutions fordifferent clientsetups.In-depthknowledgeandexperienceinWANtechnologiesincludingT1,T3,ISDN,HDLC, Point to Point, ATM & FrameRelay
• ExperienceinPhysicalcabling,IPaddressingandSubnettingwithVLSMusingQIPconfiguringand supporting TCP/IP, DNS, installing and configuringproxies.
• Troubleshooting DNS/DHCP issues within the LAN network.
• Well Experienced in configuring protocols HSRP, GLBP, VRRP, ICMP, IGMP, PPP, HDLC, PAP, CHAP, and SNMP.
• Experience in F5, Cisco ACE 4710, F5 load balancers - LTM, GTM series like 6400, 6800, 5000, 2000 for the corporate applications and their availability.
• AbilitytoInstall,Manage&TroubleshootLargeNetworks&SystemsAdministrationonWindows& Linux platforms in Development, Staging, Lab & ProductionEnvironments.
• Strong Experience in using various tools for management, analyzing, and troubleshooting, monitoring& process automation in Lab &Productionenvironment.
• Involved in troubleshooting network traffic and its diagnosis using tools like ping,traceroute, Wireshark, TCP dump and Linux operating systemservers.
• Extensive Knowledge on the implementation of Cisco ASA 5500 series and checkpoint R 75 firewalls.
• Worked extensively in Configuring, Monitoring and Troubleshooting Cisco's ASA 5500/PIXsecurity appliance, Failover DMZ zoning & configuring VLANs/routing/Netting with the firewalls as perthe design.
• Excellent communication skills to interact with team members and support personnel and also canact as a mentor to less experiencedpersonnel.

TECHNICALSKILLS:

Networking Concepts: OSI Model, TCP/IP, UDP, IPV4, IPv6, Subletting, VLSM

Routing Protocols: RIP, IGRP, EIGRP, OSPF, BGP, Static Routing, Route Filtering, Redistribution, Summarization

Gateway Load Balancing: HSRP, VRRP, GLBP

Infrastructure services: DNS, ICMP, SNMP, ARP, IRDP, NAT, SNMP, SYSLOG, NTP, DHCP, CDP, TFTP and FTP

Switch Technologies: VLANs, VTP, STP, RSTP,PVST+, DTP, MLPPP, IEEE 802.1q, MPLS, ISL and dot1q, SMTP, VLAN, Inter-VLAN Routing, Light weight access point

WAN Technologies: Frame Relay, PPP, HDLC, (E1/T1/E3T3)

Security: VPN, NAT/ PAT, access-lists, IPSEC, Juniper SRX, TACACS+, RADIUS

Firewall: Cisco PIX, ASA, Juniper Secure Access VPN Appliance, Checkpoint and Palo Alto

Network Management Tools: Wireshark, Net flow Analyzer, Cisco Works, Ethereal, SNMP, and HP open view, OPNET.

Load Balancers: Cisco CSM, F5 Networks (Big-IP) LTM 8900, Cisco ACE 4710

Operating Systems: Microsoft Windows Server 2003/2008/2012 , Windows XP/Vista/7/8, Linux

Other Technologies: VISIO, VMware, Mat Lab, GNS3, Microsoft Word, Excel, SQL

PROFESSIONAL EXPERIENCE:

Confidential, Naperville, IL

Senior Network Engineer

Responsibilities:

• Working on Cisco 6509 and 4507 series switches for LAN requirements that include managing VLANs, Port Security and troubleshooting LAN issues.
• Configuring and installation of Cisco 2500, 3640, 7200, and 7940 Routers.
• Configured IPX/SPX, HDLC, PPP, TCP/IP, BGP, EIGRP, RIP, & HSRP.
• Configured TCP/IP addressing scheme to assigned IP blocks.
• Coordinated with LAN/WAN engineers the development and implements security policy.
• Part of a team working in L2/L3 Switching Technology Administration including creating and managing VLANs, Port security, Trucking, STP, Inter-VLAN routing, LAN security.
• Deploying Layer 2 security in Server Farms by configuring switch for 802.1x port based authentication.
• Prepared documentation for various VLANS and Voice sub networks and worked on Visio for the same.
• Performed switching technology administration including VLANs, inter-VLAN routing, Trucking, STP, RSTP, port aggregation & link negotiation.
• Performingnetworkmonitoring, providing analysis using various tools like Wireshark, Solar windsetc.
• Ensure Network, system and data availability and integrity through preventive maintenance and upgrade.
• Supporting EIGRP and BGP based PwC network by resolving level 2 &3 problems of internal teams & external customers of all locations.
• Coordinated with a team to remove EIGRP from all devices and making OSPF the primary routing protocol.
• Involved in the modification and removal (wherever necessary) of BGP from the MPLS routers.
• Installed and configured DNS and DHCP server.
• Troubleshooter DHCP and other IP conflict problems.
• Defined policies, NAT and anti-spoofing for internal, external networks as well as Internet gateways.
• Configuring remote users to access corporate LAN with VPN connectivity.
• Configured and installed new IP addresses for new users by using IP Addressing and Subnetting Scheme.
• Interfaced with various vendors for company products.
• Configured Frame-Relay, ISDN, ATM, Protocols, & load balancing switches.
• Configuring Virtual Device Context inNexus7010.
• Worked on Network support, implementation related internal projects for establishing connectivity between the various field offices and data centers.
• Implementation and configuration of F5 BIG-IP LTM-6400 load balancers.
• Involved in the redistribution into OSPF on the core ASA firewall.
• Responsible for Cisco ASA 5500 firewall administration, Rule Analysis, Rule Modification.
• Cisco ASA/Checkpoint Firewall troubleshooting and policy change requests for new IP segments that either comeon lineor that may have been altered during various planned network changes on the network.
• Installation and administration of Checkpoint R 75.40 Firewall.

Environment: Cisco routers(7900,3600,2500), Cisco switches(4500,6500),Cisco ASA Firewall(5510), Routing protocols(EIGRP, RIP, BGP), Switching protocols(VTP,STP).

Confidential, Boston,MA

Senior Network Engineer

Responsibilities:

• Performed network engineering, planning (WAN & LAN) & implementation, Studied single point failures & implemented WAN structure in such a way that there are no failures in network in case of any device or link failure.
• Configured LAN networks with Access layer switches such as Cisco 4510, 4948, 4507 switches.
• Performed network monitoring and packet tracing using tools like Wireshark, OPNET.
• Setting up VLANS and configuring ISL trunk on Fast-Ethernet channel between Switches.
• Deployed a large-scale HSRP solution to improve the uptime of collocation customers, in the event a core router became unreachable.
• Worked with F5 load balancer and Cisco ACE 4710 Load balancers
• Configuring and implementing F5 BIG-IP, LTM, GTM load balancers to maintain local and global traffic.
• Configuring Virtual Chassis for Juniper switches EX-4200,Firewalls SRX-210
• Implementing, Monitoring, Troubleshooting and Convergence in Frame-Mode MPLS inside the core.
• Configuring VLAN, Spanning tree, VSTP, SNMP on EX series switches
• Understand the JUNOS platform and worked with IOS upgrade of Juniper devices
• Configured OSPF, BGP on Juniper Routers and SRX Firewalls.
• Configured routing policy for BGP. Switching related tasks included implementing VLANs and configuring ISL trunk and 802.1Q on Fast-Ethernet channel between switches
• Configuring RIP, OSPF and Static routing on JuniperM and MX series Routers
• Troubleshooting on network problems with Wire shark, identify problem and fix.
• Experience with configuring Nexus 2000Fabric Extender (FEX) which acts as a remote line card Redistribution of routing protocols and Frame-Relay configurations.
• Configuring and troubleshooting type of routing to route traffic flow per customer requirement as primary, backup/load balanced and load splitting.
• Performed the maintenance of Active Directory and replication scheme, DNS/DHCP services and time services; wrote step-by-step procedures for implementing upgrades.
• Dealt with creating VIP(virtual servers), pools, nodes and applying rules for the virtual servers like cookie persistency, redirection of the URL
• Configured VLANs on a switch for inter-VLAN communication. Configured VLAN Trucking Protocol (VTP) on Core Switches. Configured various LAN switches such as CISCO CAT 2900, 3550, 4500, 6509 switches for STP, VTP Domain, VLAN, Trucking, Fast Ether Channel configuration.
• Performedinstallation, configuration and testing of Aruba’s wireless Access points.
• Successfully installedPaloAltoNext-Generation PA-3060, PA-5060 firewalls to protect Data Center with the use of IPS feature
• Worked on Extensively on Cisco Firewalls, Cisco PIX (506E/515E/525/) & ASA 5500(5510/5540) Series.
• Implemented security policies using ACL, PIX firewall.
• Monitored usage of network resources with Cisco works, and using sidewinder in PIX Firewall.
• Implemented Cisco IOS Firewall IDS using 2600 series router.

Environment: Cisco routers (1600,3600,7300) and Cisco switches (6509, 3550, 4500,2900),Nexus(7K, 5K & 2K),Routing protocols(EIGRP, OSPF, BGP), Switching Protocols(VTP,STP,GLBP,HSRP), F5 load balancer,Cisco PIX(525, 515E), ASA(5540, 5510) firewall, Palo Alto firewall.

Confidential, Arlington - VA

Network Engineer

Responsibilities:

• Involved in Configuring and implementing of Composite Network models consists of Cisco7600, 7200, 3800 series routers and Cisco 2950, 3500, 5000, 6500 Series switches.
• Implemented various EX, SRX and J series juniper devices.
• Configured networks using routing protocols such as RIP, OSPF, BGP and manipulated routing updates using route-map, distribute list and administrative distance for on-demand Infrastructure.
• Configured OSPF redistribution and authentication with type 3 LSA filtering and to prevent LSA flooding.
• Worked on F5 BIG-IP LTM 8900, configured profiles, provided and ensured high availability.
• Configures Cisco 1231 Access points with 5959 and 4941 antennas(802.11/a/g).
• Configured OSPF over frame relay networks for NBMA and point to multipoint strategies.
• Implementing traffic engineering on top of an existing Multiprotocol Label Switching (MPLS) network using Frame Relay and Open Shortest Path First (OSPF).
• Provided redundancy in a multi homed Border Gateway Protocol (BGP) network by tunings AS-path.
• Implemented HSRP and various OSPF scenarios on networks consisting of 7600 routers.
• Configured policy based routing for BGP for complex network systems.
• Configured Multiprotocol Label Switching (MPLS) VPN with Routing Information Protocol (RIP) on the customer’s Site.
• Extensively worked on Nexus 5k and 7K, configured and troubleshooted.
• Continually monitor, assess and improvenetworksecurity, test and implement new security technologies.
• Tuned BGP internal and external peers with manipulation of attributes such as metric, origin and local Preference.
• Cisco Secure Access Control Server (ACS) for Windows to authenticate users that connects to a VPN 3000 Concentrator.
• Deployment of use cases such as SaaS, IaaS, and data center migration.
• Configured BPDU Guard, port-fast, uplink fast and other spanning tree features.
• Worked on FTP, HTTP, DNS, DHCP servers in windows server-client environment with resource allocation to desired Virtual LANs of network.
• Implementing NAT solution's on wan applications
• Responsible for day to day management of Cisco Devices, Traffic management and monitoring.
• Migration from Cisco toPaloAltofirewall.
• Worked on Cisco Routers, Active /Passive Hubs, Switches, Cisco PIX Firewall, Nortel VPN Concentrators TCP/IP, NAT and Checkpoint ESX/GSX firewall.

Environment: Cisco 3750/3550/3500/2960 switches and Cisco 3640/12000 /7200/3845/3600/2800 routers, Cisco ASA5510, Checkpoint, Cisco Nexus7K/5K, 2248/3560/5020/6509 ,VPN,RIP,EIGRP,BGP,OSPF, Cisco Wi-Fi router ISP, 800, MSE.

Confidential

Network Engineer

Responsibilities:

• Configuration and troubleshooting of Cisco 2500, 2600, 3000, 6500, 7500, 7200 Series routers.
• Team member of Configuration ofCisco7206 router with VPN and Configuration of Catalyst switches.
• Configuration 7609, 7606 with OSPF and catalyst 6505, 4500, 3550 switches with various VLAN.
• Configured Routing protocols such as RIP, OSPF, EIGRP, static routing and policy based routing.
• Create and testCisco router and switching operations using OSPF routing protocol, ASA Firewalls, and MPLS switching for stable VPNs.
• Configuration and troubleshooting link state protocols like OSPF in single area and multiple areas.
• Redesign of Internet connectivity infrastructure for meeting bandwidth requirements.
• Performed packet tracing using OPNET.
• Optimized performance of the WANnetworkconsisting of Cisco 3550/4500/6500 switches 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.
• Providing Technical Support and solutions forNetwork Problems.
• Planned, tested and evaluated various equipment’s, systems, IOSs and procedures for use within the Network/ security infrastructure.
• Upgrading IOS, troubleshootingnetworkoutages.
• Participate in all technical aspects of LAN, WAN, VPN and security Internet Service projects including, short and long term planning, implementation, project management and operations support as required.
• Configured and troubleshoot cisco WAP, and cisco prime
• Hands-on experience in the network management of circuits using TDM and Frame Relay network, performing configuration and provisioning management, fault management and performance monitoring

Environment: BMC Remedy, Cisco ASA 5540, BIG-IP LTM 8900, QOS, Policy-maps, Class-maps, Nexus, VLAN’s, STP, RSTP, PVSTP, VTP, HSRP, Ether Channel, BGP, OSPF, EIGRP, MPLS, ATM, PPP, HDLC. SNMP, TACACS+, DNS, DHCP, Checkpoint, F5 Load balancer, Nexus 7K,5K,2K,Juniper 3600,Juniper 5600

Confidential

Jr. Network Engineer

Responsibilities:

• Worked on Cisco 2500, 2600, 2800 series routers and 1900, 2900 series switches
• Replaced outdated Cisco switches and routers in existing Data centre and installed new Cisco switches and routers including migration of 2500 to 2600 series router
• Designed the IP addressing scheme using VLSM and configured IP addressing Performed activities such as initial user account creation, established LAN connectivity, file and resource sharing management, internet connectivity, FAX and email service setup
• Expanded LAN to accommodate 200 plus users. Coordinated installation and repair work. Diagnosed and corrected clients network related issues
• Installed and configured LAN/WAN as per organizational / client requirements, governed by communication protocols
• Performed tasks that include Configuring and constant administration of Static routing, Default Routing & dynamic Routing Protocols like RIP, OSPF & EIGRP.
• Implemented dedicated VLAN ID for all trunk ports, set user ports to non-trunking, and deployed port security when possible for user ports for layer 2 security
• Worked to set up the TFTP server for backing up the IOS images and configuration files of Cisco Routers and Switches and troubleshooting the file servers.
• Performed network evaluations, troubleshooting a variety of network problems, and implementing various software and hardware upgrades efficient performance.
• Troubleshoot Cisco hardware: Inspected devices, Read device LEDs, loose connections, cards, dirty devices, interior IOS upgrade, switch configuration usage of Visual Switch Manager, switch port configuration, port monitoring. Watch over Flooding Control/Network port.