SUMMARY

• Network Engineer with 8+ Years of Professional Experience with demonstrated success in Network Administration, Data Communication, Design, Wireless Network Maintaining and Troubleshooting Cisco & Huawei, HP Routers and Switches, Cisco ASA Firewalls, Load Balancers, Firewalls, VPN Configuration.
• Hands - on LAN Switching experience includes Configuration of VLANs, Trunking with ISL as well as 802.1q Encapsulation Protocols, Configuring VTP server, Client and Transparent modes, Link aggregation, L2VPN, STP, RRPP, Ether Trunk.
• Hands-on Routing experience in a Multi-Protocol environment including Routing Protocols such as RIP, OSPF, EIGRP, MPLS and BGP on Cisco Routers.
• Implementation and Troubleshooting Experience on HSRP, VRRP, GLBP for Default Gateway Redundancy on Corporate and ISP Backbone network.
• Experience in working with Nexus 7K, 5K, 2K devices.
• Worked on F5 LTM, GTM and NetScaler for Corporate Applications and make sure their Availability to End Customers.
• Implemented Traffic Filters using Standard and Extended Access lists.
• Working knowledge of Cisco IP Addressing, Subnets, Default Gateways, Static Routes, DHCP, DNS, NAT, PAT, STP, AAA
• Strong knowledge in configuring MPLS VPN on various protocols.
• Good understanding of Layer 3 VPN, GRE, VRF, DMVPN, GET VPN Technologies.
• Good knowledge of Big IP/F5 load balancer, Cisco ACE Load Balancer.
• Proficiency in handling Network Monitoring tools and Packet capture tools.
• Taking Backup and Restore IOS of Cisco routers using different methods.
• Implementing Cisco IOS Network Security (IINS)
• Implementing AAA functionality using ACS Servers using NAC,TACACS+ and RADIUS
• Using Intrusion Prevention System for Detecting & Deleting Threats and Virus attacks.
• Configuring Site-to-Site, Remote site VPN using IPsec, GRE, SSL

TECHNICAL SKILLS

Routing: RIP,OSPF, EIGRP, BGP, Static Routing, Policy Based Routing, Redistribution, Route Summarization, Multicast

Switching: STP, RSTP, Trunking, VLAN, Nexus, VPC, VDC, FEX

Redundancy: LACP,HSRP,RRPP,VRRP,GLBP,STP,MPLS

Tunneling: IPsec VPN, MPLS-VPN, GRE.

Network Management Tools: SNMP, Cisco Prime, Solarwinds, Nagios, What’s up gold,HP NNM

Security: Cisco ISE, NAT, ACL, VPN, ASA firewall, IPS &IDS, Zone based policy firewall, AAA.

WAN Technologies: MPLS, MPLS-VPN

Wireless LAN: 802.11a, 802.11b, 802.11g, 802.11n, GSM, RF, Wi-Fi, WI-Max, Cisco WLC

PROFESSIONAL EXPERIENCE

Senior Network Engineer

Confidential - Houston, TX

Responsibilities:

• Managing more than 5000 switches & routers across remote offices.
• Managing Core, Distribution and Access switches across 7 Data center around the globe.
• Configuring L2/ L3 layer switches
• Experience with design and implementation of Virtual Switching System (VSS) for both User segment and server segment using catalyst switches
• Handling WAN related problems: Routing/ Switching, connectivity issues, router hardware problems and bandwidth chokes.
• Handling Incident tickets, Service requests and Change requests raised by the customers through REMEDY tool.
• Upgraded the Data Center network security with Cisco ASA 5520.
• Configured ACL’s on Cisco Switches as well as configured Routers as terminal servers. Implementing 3750 Stackable switches using Cisco Stack Wise technology.
• Design LAN cabling and coordinating with vendor for the implementation.
• Racking, Stacking, configuring, Nexus 7K 5K 2K with VPC, VDC, FEX configuration.
• Installed wireless access points WAP at various locations in the company.
• Install and ConfiguredCiscoWLC and DHCP addressing
• Created dedicated VLANs for Voice & Data with QOS for prioritizing VOICE over DATA.
• Monitoring LAN/ WAN bandwidth utilization and traffic through advanced Monitoring Applications.
• Coordinating with vendors for installations, WAN connectivity and hardware problems and partially related to IT procurements.
• Responsible for overall development of an entire project’s plans and supporting all existing processes within the area of assigned responsibility.
• Worked on configuration and commissioning of the MPLS circuits for various branch offices.
• Providing Daily network support for Wide Area Network consisting of MPLS, VPN and point-to-point site.
• Performed an As-Is/To-Be analysis of the environment and implemented changes in regards to VLAN and VTP, Trunking, PVSTP+ configuration, switch and router configurations.
• Building network for new Remote sites by configuring Switches to enable users in the remote site to access both Intranet and Internet connectivity.
• Implementation of QOS for VOIP and SIP Layer 2 Security Features for LAN
• Regular health checkup and taking Backup of Devices in Data centers.
• Support of Cisco Technologies ranging from routing/switching/data center technologies (IOS/ASR/IOS XR) including, WANaccelerators(WAAS), and Wireless LAN Controllers/Access points
• Maintain and implement Domain Name Services, TACACS privileges, and VPN accounts
• Configure and install varied network devices and services (such as routers, firewalls, switches, VPN, etc.)

Environment: BGP, MPLS, OSPF, STP, VSS, Stacking, ACL, ASA, Nexus, Wireless, LAN/ WAN, VLAN, VPN.

Information Technology Specialist

Confidential - Redmond, WA

Responsibilities:

• Investigating Network/ suspected network incidents and working towards mitigation, and resolution of the issue.
• Troubleshooting Switching and Routing issues. (Cisco 2800, 6500, 7200 ASR1k series).
• Involved in configuring and implementing of Composite Network models consists of Cisco 7600, 7200, 3800 series routers and Cisco 2950, 3500, 5000, 6500 Series switches.
• Troubleshooting F5 load balancer issues like URL not reachable, nodes marked down by monitors etc. Handling Hardware issues related to F5 load balancers. As a part of break fix activity modifying VIP’s and SNAT’S and verifying load balancing and persistence techniques applied on VIP.
• Troubleshooting Aruba Wireless issues like slow performance, intermittent connectivity, authentication failure, low signal strength, Replacing AP’s and controllers.
• Hands on experience with Firewalls and hands on experience with configuring firewalls and managing issues.
• Working with Data center technicians to fix hardware issues by troubleshooting or changing faulty ports/ cables/ modules/ devices.
• Routing issues like ISIS, OSPF & BGP, and MPLS.
• Troubleshoot issues related to VLAN, VLAN Trunking, HSRP failovers, related issues.
• Configuration of NAT & PAT as per customer requirement.
• Enable STP attack mitigation (BPDU Guard, Root Guard), Using MD5 authentication for VTP
• Experience with Network Monitoring Solutions (Nagios, Solar Winds, etc.).
• Great understanding of WLAN including 802.11 standards, Lightweight and Autonomous systems, WPA, PEAP.
• Working with Service providers and Core Engineering team to fix operational or performance issues on WAN links.
• Participate in Conference Bridge during major outages, to gather update from service providers, Vendors, and to update Business on the situation
• Designed and deployed Cisco Identity Services Engine (ISE) solution (wired, wireless, and VPN users) for a commercial client with converged access switches and ASA firewalls.
• Maximizes network performance by monitoring performance; troubleshooting network problems and outages; scheduling upgrades; collaborating with network architects on network optimization.
• Working with Keynote to resolve issues affecting Data Center availability.
• Keeping team on high alert during major global events like new release, major outages.
• Switching issues like HSRP, Vlan Config, STP etc.,
• Also supportRiverbedSteelheads (WAN Optimizers) and Aruba Wireless technologies
• Coordinating with business to plan and implement break-fix changes on network devices

Environment: Routing, Switching, F5 load balancer, WLAN, SNAT, ISIS, BGP, MPLS,HSRP, VRRP, WAN, VTP, NAT/ PAT, STP, Solar winds.

Network Associate Engineer

Confidential

Responsibilities:

• Provided deployment guidelines for inserting new IP technology and upgrades into MPLS on backbone network.
• Worked with vendors Cisco, Huawei in validating hardware and software features.
• Troubleshooting the latency issues in the WAN network.
• Experience in configuring Site-to-site and remote access VPN solutions.
• Ensure all Network elements are deployed as per deployment template and standard configuration template.
• Providing 24x7 technical supports to complete team. Management of Netops server for providing uninterrupted services to customers.
• Ensure network is migrated to MPLS architecture up to Core switch level.
• Configured Client VPN technologies including Cisco’s VPN client via IPSEC.
• Configuring ACL to allow only authorized users to access the servers.
• Participated in on call support in troubleshooting the configuration and installation issues.
• Developed route redistribution mechanism between BGP and OSPF for large scale networks.
• Ensure all elements with 100 % uptime, Ensure redundancy for all Critical network elements in LACP mode.
• Configuring IP sec VPNs as per customer requirements with standard encryption and encapsulation.
• Implemented a broadband network infrastructure that delivers the capacity for and allows for personnel to access real time video in aCiscomulticastenvironment
• Configured SNMP on all the network devices and added them to Solarwinds for monitoring.
• Configured Routing protocols such as OSPF, BGP static routing and policy based routing.
• Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Ether channel, STP and RSTP, MSTP, LACP.
• Configured HSRP and VLAN trucking 802.1Q, VLAN Routing on Catalyst 6500 switches.
• Switching related tasks included implementing VLANS, VTP, RSTP and Port security.
• Dealt with the configuration of Standard and Extended ACLs for Security.
• Continually monitor, assess and improvenetworksecurity test with the help of Solarwinds.
• Worked along with the team in resolving client raised incident tickets.
• Monitoring the WAN links using Solarwinds and what’s up gold.
• Monitoring & Troubleshooting Cisco core Routers (7200, 3600, 1700 and 1600) and Switches (Cisco 2900, 6500, 3500, 3700 and 3Com Switches).
• Worked with routing protocols of RIP,EIGRP,OSPF,MPLS
• To ensure high availability of system resources to the end users and to maximize the uptime of doing the necessary work to diagnose, detect and rectify the faults in time.
• Coordinating the technical activities with their vendors & Telco to keep the systems and network uptime to 98% and submission of monthly reports on the project.

Environment: IP Technology, Cisco, Huawei, WAN, IP sec VPN, OSPF, BGP, 802.1Q, RSTP, MSTP, LACP, Port Security

Network Administrator

Confidential

Responsibilities:

• Responsible for the configuration of Cisco Routers (7000, 5300, 4000, 2500, 3000, 2600) using RIP, IGRP, OSPF, EIGRP, BGP
• Managed office network with Cisco devices with network devices including 2500 and 3600 series routers and 3500, 2900, 1900 series switches
• Escalating customer problems to management and support groups utilizing standard escalation model.
• Extensive experience in configuring and implementing OSPF and BGP.
• Supported core network consisting of Cisco 7200 series routers running multi area OSPF.
• Configuration of EIGRP and OSPF as interior gateway protocol with route filtering and route redistribution, installed and maintained Cisco 3600, 2600 and 7200 backbone routes with HSRP
• Implement Cisco Secure Access Control Server (ACS 3.0) for TACACS+/ RADIUS
• Implementation of TCP/ IP and related Services-DHCP/ DNS/ WINS
• Pinpointing physical network conditions that are contributing to call quality issues
• Configuring, maintaining and troubleshooting routing protocols such as OSPF, EIGRP and BGP.
• Configuring and troubleshooting on Cisco Wireless Networks: LWAPP, WLC, WCS, Standalone Aps, Roaming, Wireless Security Basics, IEEE 802.11 a/ b/g, RF spectrum characteristics.
• Troubleshoot and repair of network outages using Fluke Optiview, Sniffer, Telnet, SSH, ping, trace route technologies
• Coordination and migration of approximately 700 servers and applications to new network infrastructure
• Assisting in Network Security issues relating to Internet or network hacking and misuse
• Maintained and setup wireless access points at various locations in the company.
• Engaged in office moves, helped in identifying network requirements of new building, installed new networking hardware, and coordinated with vendors for cabling/wiring
• Performed troubleshooting, while maintaining trouble ticket tracking, following internal/external
• Escalation procedures and customer notifications.
• Used DHCP to automatically assign reusable IP addresses to DHCP clients
• Taking network devices backup & restoring when required
• Troubleshooting LAN and Cabling. Installing Network printers

Environment: RIP, IGRP, OSPF, EIGRP, BGP, FWSM, Cisco ACS, TACACS, RADIUS, DHCP, DNS, LWAPP, WLC, WCS

Network Support Engineer

Confidential

Responsibilities:

• Installation and configuration of various Routers like 800, 1600, 2500, 2600 and configuration of various Cisco switches like 2960, 3560.
• Local computer and LAN support for 2000 employees
• Implementation of various routing protocol like, EIGRP, OSPF on routers
• Configure and Troubleshoot Spanning Tree protocol in the Switching Network.
• Implement the technical solution sold to clients.
• Reporting network operational status by gathering, prioritizing information.
• Provide assistance to field engineers during installations
• Resolve any technical issues that arise during the project implementation.
• Open TAC cases with network vendors to solve issues.
• Assist in troubleshooting National Internet virus attacks and prevention of virus infiltration
• Assisting in Network Security issues relating to Internet or network hacking &misuse
• Troubleshoot and repair of local area network outages using Fluke Optiview, Telnet, Sniffer, Ping, Trace Route and Internet Technologies
• Provide project status reports to upper management

Environment: Routing, Switching, LAN, EIGRP, OSPF, STP, TAC, Telnet, Ping