SUMMARY:

• 8 years of experience in networking, installing, configuring and maintaining network devices.
• Implementing IP addressing schemes, Routing, Switching and Firewall Security, including hands - on experience in providing network support, installation and analysis for a broad range of LAN /WAN/MAN communication systems.
• Experience working with 2600, 2900, 3600, 3800,3900, 7200, 7600 series Cisco Routers
• Proficient in configuring Cisco Catalyst 2900,2960, 3560, 3750, 4500, 4900, 6500 series and Nexus 2248, 5548 and 7010 switches.
• Extensively worked on Cisco catalyst 6509 and implemented VSS along with VDC and VPC on Nexus 5505, 7009 switches.
• Expertise in Configuration of Virtual Local Area Networks (VLANS) using Cisco routers and multi-layer Switches and supportingSTP, RSTP, PVST, RPVST along with trouble shooting of inter-VLAN routing and VLAN Trunking using 802.1Q.
• In-depth knowledge and hands-on experience in Tier II ISP Routing Policies, Network Architecture, IP Subnetting, VLSM, TCP/IP, NAT, DHCP, DNS, FT1 / T1 / FT3 / T3 SONET POS OCX / GigE circuits, Firewalls.
• Hands on IMAC (Install, Move, Add and Change) Service.
• Experienced with Threat prevention for firewalls (IPS, Anti-bot, Anti-spam, Anti-virus, DLP)
• Implemented redundancy with HSRP, VRRP, GLBP, Ether channel technology (LACP, PAgP) etc.
• Configuring BGP/OSPF routing policies and designs, worked on implementation strategies for the expansion of the MPLS VPN networks.
• Proficiently implemented traffic filters using Standard and Extended access-lists, Distribute-Lists, Route Maps and route manipulation using Offset-list.
• Hands on experience in deployment of GRE tunneling, SSL, Site-Site IPSEC VPN and DMVPN.
• Managed inventory of all network hardware, Management and Monitoring by use of SSH, Syslog, SNMP, NTP.
• Expertise in OSI layer model TCP/IP.
• Extensive knowledge and experience of routing and switching protocols RIP v1 & v2, OSPF, EIGRP, BGP, NAT and VLAN.
• Have knowledge on various advanced technologies like VOIP, H.323, SIP, QOS, IPv6, Multicasting, and MPLS.
• Strong knowledge of TACACS+, RADIUS implementation in Access Control Network.
• Experience in Designing and assisting in deploying enterprise wide Network Security and High Availability Solutions for ASA.
• Experience with convert CheckpointVPN rules over to the Cisco ASA solution. Migration with both Checkpoint and Cisco ASAVPN experience.
• Experience in designing MPLS VPN and QoS for architecture using Cisco multi-layer switches.
• Expertise in installing, configuring and troubleshooting Juniper EX Switches (EX2200, EX2500, EX3200, EX4200, EX4500, EX8200) series.
• Expertise in installing, configuring and troubleshooting Juniper Routers ( E,J,M and T-series)
• Implementing security policies using Cryptography, ACL, SDM, PIX Firewall, IPsec, VPN, and AAA Security on different series of routers.
• Strong hands on experience on PIX Firewalls, ASA (5540/5550) Firewalls . Implemented Security Policies using ACL, Firewall, IPSEC, SSL, VPN, IPS/IDS, AAA (TACACS+ & RADIUS).
• Efficient at use of Microsoft VISIO/Office as technical documentation and presentation tools.
• Having knowledge on python, Shell or perl.

TECHNICAL SKILLS:

Routers: Cisco 7600, 7200, 3800, 3600, 2900, 2800, 2600,1800,1700

Routing: OSPF, EIGRP, BGP, RIP v1/v2, PBR, Route Filtering, Redistribution, Summarization, and Static Routing.

Switches: Nexus 2K/5K/7K, Cisco Catalyst 2900, 3500, 3700,6500, 4500, 3850,3560, 3750, 2960

Switching: LAN, VTP, STP, PVST+, RPVST+, Inter VLAN routing & Multi-Layer Switch, Etherchannels, Transparent Bridging.

Network Security: Cisco ASA 5540, ACL, IPSEC, Checkpoint

Load Balancer: F5 Networks (Big-IP) LTM 8900 and 6400.

LAN: Ethernet (IEEE 802.3), Fast Ethernet, Gigabit Ethernet

WAN: PPP, HDLC, Channelized links (T1/T3), Fiber Optic Circuits, Frame Relay, VOIP

Gateway Redundancy: HSRP and GLBP

WAN Optimizer: Riverbed Steelhead Appliance

DHCP and DNS: Infoblox

Various Features & Services: IOS and Features, IRDP, NAT, SNMP, SYSLOG, NTP, DHCP, CDP, TFTP, FTP.

AAA Architecture: TACACS+, RADIUS, Cisco ACS.

Network Management: Wireshark, SNMP, Solarwinds

WORK EXPERIENCE:

Confidential, Christiansburg, VA

SR. Network Engineer

Responsibilities:

• Managing and configuring Cisco Switches and Routers independently.
• Experienced with ibgp and ebgp overmpls environment with ospf protocol.
• Experienced with meru,aruba,cisco, merakiwireless devices.
• Data/Phone cable installation and termination, includingCat6e, Cat5, and Cat3. MDF/IDF build outs.
• Configured IP, EIGRP and OSPF in routers. Configured and installed multi-protocol (IP, IPX) multi-interface Cisco routers.
• RCA of Sev 1 and Sev 2 incidents
• Palo Alto Networks platforms, including utilization of Border Gateway Protocol (BGP), Open Shortest Path First (OSPF),
• Palo Alto PAN-200s and 500s
• Experience in Cisco switches and routers: IP addressing, WAN configurations.
• Hands on using crimp tools, punch down tools to punch cables to the 110 data/voice blocks.
• Communicating and escalating tickets with service providers for network outage issues.
• Monitoring Network infrastructure using SNMP tools HP NNM, Solar-winds and Opnet.
• Coordinating with Security team for NAT configuration and troubleshooting issues related to access lists and DNS/DHCP issues within the LAN network.
• Experience in troubleshooting VLAN, STP (Spanning tree protocol), & Switch Trunk and IP subnet issues.
• Configuring ASA Firewall and accept/reject rules for network traffic.
• I also configured Fortinet firewall.
• Experience configuring and troubleshooting juniper mx2020 router.
• Experience configuring and troubleshooting ptx3000 converged super core router (handle routing protocols, traffic engineering, policy, policing, monitoring and configuration management)
• Expertise in 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.
• Performing network monitoring, providing analysis using various tools like Wireshark, Solarwinds etc.
• Assisted customers with installing, configuring, and troubleshooting issues with the Solarwinds Suite of software.
• Mentored and assisted Junior Technicians to resolve customer issues
• Provided support to Fortune 500 companies and government agencies worldwide
• Specialized in network monitoring, traffic analysis, and HA/DR software solutions
• Ensured customers were satisfied with technical solutions and owned issues through resolution
• Diagnosed and solved a variety of network connectivity, SQL database, and application issues
• Worked closely with development and sales teams to ensure a consistent customer experience
• Evaluated customer environments and recommend hardware components for growing companies
• Managed customer expectations while leveraging resources to ensure deadlines are met

Environment: Cisco 2948/3560/4500/3560/ 3750/3550/3500/2960 6500 switches and Cisco 3640/12000/ 7200/3845/3600/2800 routers, Cisco Nexus 7K/5K, Cisco ASA 500,F5 BIGIP LTM, RIP, OSPF, BGP, EIGRP, LAN, WAN, VPN, HSRP, puppet, chef, ansible

SR. Network engineer

Responsibilities:

• Involved in complete LAN, WAN development (including IP address planning, designing, installation, configuration, testing, maintenance etc.).
• Leading role of Maintain and document ongoing periodic maintenance activities for department systems. Implement and take lead role in ongoing infrastructure activities via project management and state guidelines including purchasing software, hardware and contracting through CMAS and other state agency ordering processes. Consult on infrastructure configuration and implementation.
• Implementation of Wireless access points, Cisco 3750, 3850 switches and Cisco 3900 and ASR 1000s routers to new sites.
• Involved in Switching Technology Administration including creating and managing VLANS’s, Port security, Trunking, STP, Inter Vlanrouting, LAN security etc.
• Configured IP, EIGRP, RIP, BGP and OSPF in routers. Configured and installed multi-protocol (IP, IPX) multi-interface Cisco routers.
• Experience working with Cisco Nexus 2148 Fabric Extender and Nexus 5000 series to provide a Flexible Access Solution for datacenter access architecture.
• Experience configuring Virtual Device Context in Nexus 7010
• Configuring RIP, OSPF and Static routing on Juniper M and MX series Routers
• Managed corporate Checkpoint Firewall management and operation, implementing security rules, and mitigating network attacks.
• Working with Checkpoint Support for resolving escalated issues.
• Deployed Site to Site and Client to Site VPNs RAS VPNS utilizing Checkpoint Firewall-1/VPN-1.
• Provide Tier III Level Load Balancer expertise on F5 BigIP Local Traffic Managers (LTM). Designing F5 solutions/support for migration work of applications and websites from Cisco CSS Load Balancers to the F5 BigIP Load Balancers.
• Configuring VLAN, Spanning tree, VSTP, SNMP on EX series switches
• Once trouble ticket has been created keep customer informed of status of ticket and estimated time to repair.
• Experienced working on firewall rule changes in GLP.
• Coordinating with service providers for WAN link outages.
• Checking and configuring Cisco 7600 and 7200 routers at data center for remote sites’ issues.
• Working on Cisco 6509 and 4507 series switches for LAN requirements that include Upgraded and updated Cisco IOS from 12.3T to 12.4. Used to DHCP to automatically assign reusable IP addresses to DHCP clients.
• Used PIX Firewall and ACLs for authentication of EIGRP to ensure high security on the network.
• Configure and implement remote access solution for customers: IPSEC, Site2Site, GRE tunnel end-to-end
• Configured Cisco 7200 routers which were also connected to Cisco PIX 535 security appliances providing perimeter based firewall security.
• Used load balancers ACE and load balancing technique with multiple components for efficient performance and to increase reliability through redundancy.
• Involved in migration from Frame-Relay/ATM network to MPLS-based VPN for customer’s WAN infrastructure.
• Used Network monitoring tools to ensure network connectivity and Protocol analysis tools to assess and pinpoint networking issues causing service disruption.
• Environment: Cisco routers 7200, IOS 12.4 & switches 3750, 4500, 6500; RIP, OSPF, EIGRP, VLAN, DHCP, DNS, MPLS, ISDN, DSL, T1 Lines.
• Optimized performance of the WAN network consisting of Cisco 3550/4500/6500 switches by configuring VLANs.
• Experience with configuring Nexus 2000 Fabric Extender (FEX)which acts as a remote line card (module) for the Nexus 5000.
• Extensive knowledge and troubleshooting in data communication protocols and standards including TCP/IP, UDP, IEEE 802.3, Token Ring, Cable Modem, PPPOE, ADSL, Multilayer Switching, DoD standards.
• Managed the F5 BigIP GTM/LTM appliances to include writing iRules, SSL offload and everyday task of creating WIP and VIPs.
• Other responsibilities included documentation and supporting other teams.

Environment: Cisco 3750/3550/3500/2960 switcheCisco 3640/12000/ 7200/3845/3600/2800 routers, Protocols: OSPF, BGP, VLAN, HSRP,Network categories: LAN, MAN, NOC, WAN Ip Addressing Techniques: IPV4 Firewall environment: ASAFirewall, Palo Alto Checkpoint, Core switch Environment: Nexus 7K/5K/2K.

Network Engineer

Responsibilities:

• Implementation of analysis, optimization, troubleshooting and documentation of LAN/WAN networking systems.
• Configured and troubleshoot OSPF and EIGRP.
• Planning and configuring the routing protocols such as OSPF, EIGRP, RIP, and Static Routing on the routers.
• Tested authentication in OSPF and BGP.
• Troubleshoot traffic passing managed firewalls via logs and packet captures
• Configured and resolved various OSPF issues in an OSPF multi area environment.
• Managed fast Layer 3 switched/routed LAN/WAN infrastructure as a part of Network team. The LAN consisted of Cisco campus model of Cisco 3550 at access layer, Cisco 6513 at distribution/core layer.
• Worked with telecom vendors in regards to network fault isolation.
• Hands-on experience with WAN (ATM/Frame Relay), Routers, Switches, TCP/IP, Routing Protocols (BGP/OSPF), and IP addressing.
• Configured CIDR IP RIP, PPP, BGP and OSPF routing.
• Involved in the configuration & troubleshooting of routing protocols: MP-BGP, OSPF, LDP, EIGRP, RIP, BGP v4. Configured IP access filter policies.
• Experience with Firewall Administration, Rule Analysis, Rule Modification
• Modified internal infrastructure by adding switches to support server farms and added servers to existing DMZ environments to support new and existing application platforms.
• Deployed 7613 as PE and CE router and Configured and troubleshoot the Edge Routers.
• Excellent troubleshooting knowledge on T1, T3, OC-3 and OC-12.
• Generated RCA (Root Cause Analysis) for critical issues of layer1/layer2/layer3 problems.
• Configuration and troubleshooting of Cisco catalyst 6509, 7613 with supervisor cards.
• Worked with Juniper Firewalls.
• Experience with implementing and maintaining network monitoring systems (Cisco works and HP Open view) and experience with developing complex network design documentation and presentations using VISIO.
• Estimated Project costs and created documentation for project funding approvals.
• Configured ASA 5540 to ensure high-end security on the network with ACLs and Firewall.
• Used IPsec VPN tunneling to provide access to user machines and partners in other network. Provided application level redundancy and availability by deploying F5 load balancers LTM.
• Experience with convert Checkpoint VPN rules over to the Cisco ASA solution. Migration with Cisco ASA VPN experience
• I have also configured different cisco routers over windows 2000.

Environment: NetFlow, TACACS, EIGRP, RIP, OSPF, BGP, VPN, MPLS, CSM, SUP720, Ether Channels, Cisco 7200/3845/3600/2800 routers, Fluke and Sniffer, Cisco 6509/ 3750/3550/3500/2950 switches, Cisco ASA firewalls.

Network Support Engineer

Responsibilities:

• Configured RIP and EIGRP on 2600, 2900 and 3600series Cisco routers
• Involved in troubleshooting of DNS, DHCP and other IP conflict problems
• Implemented VTP and Trunking protocols (802.1q and ISL) on 3560, 3750 and 4500series Cisco Catalyst switches
• Provided on-call support for installation and troubleshooting of the configuration issues
• Configured Standard, Extended, and Named Access Lists to allow users all over the company to access different applications and blocking others
• Planned and implemented Subnetting, VLSM to conserve IP addresses
• Configured STP for loop prevention and VTP for Inter-VLAN Routing
• Performed troubleshooting of connectivity problems using PING, and Trace route
• Provided Technical support for improvement, upgradation, and expansion of the existing network architecture
• Done troubleshooting of TCP/IP problems and connectivity issues in multi-protocol Ethernet environment

Network Engineer

Responsibilities:

• Provided Level 1 Support for Broadband Connection to customer.
• Received inbound calls of technical nature, independently resolved customer complaints, concerns and inquiries regarding their Internet connection.
• Managed LAN and Wireless Network and performed troubleshooting On LAN, WLAN, Customer Modems (NTL 250, TERAYON, and MOTOROLA) And CPE Router (Cisco-Linksys, Belkin, D-LINK and Dynamode).
• Set up Home Network and provided troubleshooting and full support on virgin- media security Software (PC-guard).
• Troubleshoot a wide range of technical support issues and connectivity problems such as authentication, connection speed, e-mail configuration, and loss of synchronization.
• IOS upgrades on catalyst series switches like 2900, 3560, 3750.
• Troubleshoot TCP/IP problems and connectivity issues in multi-protocol Ethernet environment.
• Implemented trunking protocols like 802.1q on 3750 switches.
• Configured ACLs to provide accessibility and restrict unauthorized users.
• Involved in maintaining STP, RSTP and PVST+ for the catalyst switches I worked on.
• Configured and maintained RIP, OSPF and routing protocols on 2600 and 3600series Cisco routers.
• Maintaining and troubleshooting of connectivity problems using Ping, Traceroute.
• Assisted in racking and stacking.
• Technical assistance for LAN/WAN management and customer issues.
• Other responsibilities also included documentation.