SUMMARY

• Cisco certified network professional with 7+ years of experience in routing, switching, firewall technologies, implementation and troubleshooting of large complex network systems looking to fill a role requiring great responsibility.
• Sound knowledge of Routing and Switching concepts and MPLS design.
• Proficient in Cisco IOS for configuration & troubleshooting of routing protocols: BGP, OSPF, LDP, EIGRP, RIP, MPLS
• Familiar with NAT/ACLs, AAA, Layer 2 Security, Layer 3 Security, IPS/IDS, Cryptography, VPN, IPsec.
• Worked on F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability.
• Implemented and maintained Big - IP F5 load balancing solution across multiple datacenters
• Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, ISL/ 802.1q, Ether channel, Port Security, STP, RSTP and MST.
• Extensive experience in Layer 3 routing and Layer 2 switching. Experienced dealing with router configurations like 7200, 3800, & 2800 and switches 6500, 4500, 3750, 2900 and 3500XL series
• In depth understanding of IPV4 andimplementation of Subnetting.
• Experienced in DNS, DHCP, SMTP,FTP, HTTPS and web security architecture
• Implemented IPv4 migration to IPv6 (NAT-PT, Tunneling, etc.) and IPv6 routing protocols (RIP, OSPFv3, EIGRP, BGP etc.).
• Network planning and implementation of WAN technologies including E3, E1, T1, T3, ISDN, HDLC, PPP, Frame Relay, ATM and MPLS VPN
• In-depth knowledge and hands-on experience in Tier II ISP Routing Policies,NetworkArchitecture, IP Subnetting, VLSM, TCP/IP, NAT, DHCP, DNS, FT1 / T1 / FT3 / T3 SONET POS OCX / GigE circuits, Firewalls.
• Experience in testing Cisco routers and switches in laboratory scenarios and tan deploy them on site for production.
• Involved in troubleshooting network traffic and its diagnosis using tools like wire shark, TCP dump and Linux operating system servers.
• Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Ether channel, STP, RSTP and MST. Implementation of HSRP, VRRP for Default Gateway Redundancy.
• Involved in troubleshooting of DNS, DHCP and other IP conflict problems.
• Implemented IPv4 migration to IPv6 (NAT-PT, Tunnelingetc.) and IPv6 routing protocols (RIP, OSPFv3, EIGRP, BGP etc).
• Experience working with Cisco access control system (ACS) 4.2 server in providing access control platform dat implementsautantication, authorization, and accounting (AAA).
• Strong knowledge of TACACS+, RADIUS implementation in Access ControlNetwork.
• Efficient at use of Microsoft VISIO/Office as technical documentation and presentation tools.
• Excellent interpersonal, communication and organizational skills with the ability to interact TEMPeffectively with employees at all levels within the organization.

TECHNICAL SKILLS

Cisco Platforms: Cisco routers (7600, 7200, 3900, 3600, 2800, 2600, 2500,1800 series) & CiscoCatalyst switches (7000. 6500, 4900, 3750, 3500, 4500, 2900 series), Juniper J series, M 320 and MX960, SRX, EX Series Routers and SwitchesNexus 7K, 5K, 2K & 1K

Networking Concepts: Access-lists, Routing, Switching, Sub-netting, Designing, CSU/DSU, IPsec, VLAN, VPN, WEP, WAP, MPLS, VoIP, Bluetooth, Wi -Fi

Firewall: Checkpoint, Juniper, Palo Alto firewall

Network Tools: SNMP, Cisco Works, Opnet, Wireshark, Cisco ISE, Solarwinds, Splunk, Scansafe, Websense, Skybox.

Load Balancers: Cisco CSM, F5 Network(Big-IP)ASM, A10, Reverse Proxy Bluecoat

WAN Technologies: Frame Relay, ISDN, ATM, MPLS, leased lines & exposure to PPP, DS1, DS3, OC3,T1 /T3.

LAN technologies: Ethernet, Fast Ethernet, Gigabit Ethernet, & 10 Gigabit Ethernet, Port- channel,VLANS, VTP, STP, RSTP, 802.1Q, access points, WLC, WLS.

Networking Protocols: RIP, OSPF, EIGRP, BGP, STP, RSTP, VLANs, VTP, PAGP, LACP, MPLS, HSRP.

Operating System: Windows 7/XP, MAC OS X, Windows Server, Linux, UNIX., Cisco IOS XE

PROFESSIONAL EXPERIENCE

Confidential, Dallas, TX

Network Engineer

Responsibilities:

• Configuration and troubleshooting of CiscoRouter s such as Cisco3640, Ciscocatalyst6509,7613 with supervisor cards
• Experience working on different monitoring tools Qradar, Zenoss and Net scout to analyze and resolve the issues.
• Configuring, Monitoring and Troubleshooting Cisco’s ASA 5500 security appliance.
• Worked with multiple customers over a period of time to enhance their network, resolve and do the RCA (root cause analysis) for in service production problems and create work around for known IOS issues.
• 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.
• Configured PVSTP+ for loop prevention and VTP for Inter-VLAN Routing.
• Configured various Router interfaces like ATMinterface, T3interface, and ChannelizedT1interfaces
• Involved in IOS and CATOS upgrade procedures and Pre/Post checks for customer production upgrades.
• Experience with Project data and voice documentation tools & experience with developing network design documentation and presentations using VISIO
• Replaced old 6500 and WAN routers from DR testing site and Installed Nexus 7K and ASR 1006 routers.
• Commissioning and decommissioning, configuring, URL and Web filtering, SSL s, monitoring, SNMP traps, logging, blocking on Palo Alto devices, migrating from one network to other.
• Installation and management of overall administration of LAN, WAN, systems involving design of network layouts, configuration and maintenance, Commissioning Routers & Switches, firewalls and ensuring maximum uptime during site deployment to VoIP..
• Working on HP open view map for Network Management System and Ticketing
• Configuration was running and completed in timely manner. Configure policies and enabled rules to alerting on intrusion events.
• Responsible for entire LAN and WAN/WLAN maintenance and troubleshooting of the company network. Involved in the Team of Data Center Operations to perform duties like administration and deployment of Cisco Routers and Switches according to the organization requirements.
• Configured FWSM on cisco 7600 router to reduce costs and operational complexity while enabling organization to manage multiple firewalls from the same management platform.
• Provide solutions to Tier 1/2 escalated issues and tickets.
• Implementation and configuration of F5Big-IPLTM-6400 load balancers
• Worked in projects converting P2P circuits into MPLS circuits, commissioning and decommissioning of the MPLS circuits for branch offices.
• Configuring and resolving various OSPF issues in an OSPF multi area environment,
• Implemented, configured BGPWAN routing, converting OSPF routes to BGP (OSPF in local routing).
• Worked on commissioning and decommissioning of the MPLS circuits for various field offices & POPs.
• GRE tunneling & Site-to Site VPN configuration between other two sites in USA.
• Implemented redundancy for Routers, Switches and Firewalls.

Environment: Corporate office architecture with highly reliable & securednetworkincluding Cisco routers (7200, 3800, 2800) and Cisco switches (6500, 3700, 4900, 2900), Nexus (7K, 5K & 2K) Routing Protocols (EIGRP, OSPF, IGP, BGP), Switching protocols (VTP, STP, GLBP, HSRP), Cisco PIX (525, 535), ASA (5505, 5510), FortiGate Firewall 80C, 100d, 1240b on Forti OS5.2.

Confidential - Richmond, VA

Sr. Network Engineer

Responsibilities:

• Assisted tanetworkteam in maintaining the campusnetwork.
• Maintained anetworklab with more than 30routers (3k, 4k, 6k series), 50+ switches (2k, 3k series), firewall and othernetworkdevices like DHCP, DNS servers and VPN concentrators.
• Supporting data center consist of Nexus 7k, 6500, 3750x, 3850x, Various Cisco router 39xx, 29xx, 28xx and 4431 equipment and install new products and debugnetworkinsures.
• Experience working with migration from 6500 series devices to 4500 Series switches in Campus deployments at Core, Distribution and AccessLayers.
• Review plans and design for remote DR conversion from CISCO6500 to Nexus product line.
• Experience working with Cisco routers from 6 series.
• Configured, installed, & managed DHCP, DNS, & WINS servers.
• Provided seniornetworksupport for over 1500 ASA firewalls and F5LTM support.
• Provided support of F5 BigIP and F5 GTM's load balancernetworkissues and changes.
• Designed ACLs, VLANs, troubleshooting IP addressing issues and taking back up of the configurations on switches and routers.
• Switching related tasks included implementing VLANS and configuring ISL trunk on Fast-Ethernet and Gigabit Ethernet channel between switches.
• Successfully installed Palo Alto PA-3060 firewall to protect data centers.
• Design and configuring Overlay Transport Virtualization on Cisco NX-OS devices like Nexus 7000.
• Experience working with ASR 9000 series switches with IOS-XR.
• Implemented Firewall and IDS/IPS solutions to mitigate client risks and analyzed security issues.
• Assisted in backing up, restoring and upgrading the Router and Switch IOS.
• Upgrading IOS - Upgrading hardware and installing new devices, Tuning (Configuration), make standardization for the topology.
• Helped tanetworkteam to install new switches and routers and configure the IOS according to the requirement which included VLAN, OSPF, Subnetting, EIGRP, IGP, BGP, VTP, PaGP, spanning-tree, IP Subnetting, wireless access points, T1 circuits and PIM-SM using auto RP.
• Worked with LAN protocols like STP, RSTP, MST, VTP, VLAN, LACP and PAGP.
• Implemented Site-to-Sites over the Internet utilizing 3DES, AES/AES-256 with ASA Firewalls.
• Experience with migrating from Cisco ASA 8.2 version to Cisco ASA 8.4 Version.
• Experience with convert PIX rules over to the Cisco ASA solution.
• Responsible for CiscoASA firewall administration across our globalnetworks.
• Assisted campus for VOIPnetworkmanagement and troubleshoot.
• Worked on Data, VoIP, security as well as wireless installations and technologies.
• Desktop support for users including, MS Office, Windows 2000/XP, MAC, Linux, Operated and staffed halp desk support for more than 500 users and 5 computer Laboratories.
• Worked with new installations, upgrades, and maintenance of the LAN/WAN,NetworkSecurity, Internet, and set up and repair desktop PCs using Windows 2000/XP/MAC/Linux for 350 users.

Environment: In Corporate office architecture with highly reliable networkincluding Cisco routers (7206, 7606, 7609,7600,3600,2600,2500) and Cisco switches (6505, 3550, 4500), Routing Protocols (EIGRP, OSPF, BGP), Switching protocols (VLAN, VLAN Trunk, HSRP).

Confidential, RI

Sr. Network Engineer

Responsibilities:

• Designed and implemented reliable multiservice MAN/WAN IP infrastructure using Frame Relay, using Cisco 7600, 3600, 2600 (w/integrated CSU/DSU) and 2500 series routers, Cisco Catalyst 4500 and 3550 series switches.
• Configuration and troubleshoot Routing protocols (Static and Dynamic (EIGRP OSPF, BGP)), physical cabling, IP addressing, LAN-WANNetworksand Load balancing.
• Planned, tested and evaluated various equipment, systems, IOSs and procedures for use within theNetwork/ securityinfrastructure.
• Configuration of Cisco7206 router with VPN and Configuration of Catalyst switches.
• Configuration 7609, 7606 with OSPF and catalyst 6505, 4500, 3550 and Nexus switches with various VLAN.
• Create and test Cisco router and switching operations using OSPF routing protocol.
• Configuration and troubleshooting link state protocols like OSPF in single area and multiple areas.
• Configured HSRP and VLAN Trunk 802.1Q, VLAN Routing on Catalyst 6500 switches.
• Putting down the test plans for the devices under test with IEEE802.11n specifications.
• Configuration of wireless Access points, and security Gateway in Wi-Fi and configuration of wireless access gateway.
• Configured VLANs with 802.1q tagging. Configured Trunk groups, ether channels, and Spanning tree for creating Access/distribution and core layer switching architecture.
• Configuring Static, IGRP, EIGRP, and OSPF Routing Protocols on Cisco 1600, 2600, 2800, 3600, 7300 series Routers.
• Maintain logs of network and bandwidth utilization of servers and network devices and create utilization report based on the logs
• Design network and create physical and logical network layout diagrams
• Write and maintain technical documents describing implemented technologies and architecture
• Provided consultation services to clients for installing and configuring Cisco routers and switches
• Configured Site to Site IPsec VPN tunnels to peer with different clients and each of client having different specifications of Phase 1 and Phase 2 policies using Cisco ASA 5500 series firewalls.
• Configured VLAN’s, Private VLAN’s.
• Configuring access layer switches such as Cisco 4510, 4948, 4507 switches for VLAN, Fast Ether Channel configuration.
• Configured inside ACL and interfaces, outside ACL and interfaces.
• Configured NAT and PAT policies.
• Configuration and troubleshooting of EIGRP, OSPF, BGP.
• Design OSPF areas for reliable Access Distribution and for Core IP Routing.
• Has expertise in LAN/WAN technologies (fast Ethernet, Layer2 & 3 switched/routed LAN, and Frame Relay).

Environment: In Corporate office architecture with highly reliable & securednetworkincluding Cisco switches (6500, 3750, 3550,4500), Nexus (7K, 5K & 2K) Routing Protocols (EIGRP, OSPF, IGP, BGP), Switching protocols (VLAN,VTP, STP, GLBP, HSRP), Cisco PIX (525, 535), Palo Alto Firewall, F5 BigIP Load balancers.

Confidential

Network Engineer

Responsibilities:

• Proactively monitor customer networks to identify fault occurrences & Responsible for adhering to SLA (Service level agreement) and ownership on Incidents throughout the life cycle.
• Understanding the business impact and sensitize the reported or proactively observed fault/issue and carry out proper much needed escalation within the management.
• Responsible for transferring tickets to L2 engineers and other necessary respective teams for problem resolution, actively support team members in day to day operations.
• Detect faulty links through IBM Net-cool and analyze reason for link failure using Putty and Telnet.
• Monitoring fault tickets prioritize and track progress as appropriate.
• Resolving issues within the specified time period of 4 hours in accordance with the service level agreement (SLA) between customer and service provider.
• Monitoring LAN and WAN network traffic and performance using network monitoring software.
• Using REMEDY for logging faults & assigning the fault to concerned teams.
• Resolving issues with a clear solution.

Environment: Corporate office configured LAN and WAN equipment using Cisco Routers (3700, 3800, 3900), Hubs and Layer 2 Switches, and troubleshooting using tools(IBM Net-cool, Putty and Telnet).