SUMMARY

• Having 8+ years of experience in routing, switching, data center, load balancers, Cisco firewalls, implementation and troubleshooting of complex network systems.
• Strong command over protocol stack and OSI layers and worked extensively on network layer along with different hardware configurations in testing.
• Extensive experience in configuring and troubleshooting the protocols like TCP/IP, Routing Protocols (RIP, IXIA, OSPF, IS - IS, BGP, IGRP, EIGRP), PPP, PPTP, L2TP, NAT, IPSec.
• Hands-on experience in using various network monitoring and packet sniffing tools.
• Knowledge in 802.11a, 802.11b, 802.11g, Bluetooth.
• Familiar in working with IPv4 & IPv6 addresses.
• Extensive experience in Layer 3 routing and Layer 2/3 switching and deal with router configurations of 7200, 3800, 2800 and switches 6500, 4500, 3700, 3750, 3900, 2900, 2960 and 3500XL, 3950 switch series.
• Switching tasks include VTP, ISL/802.1q, IPSec& GRE Tunneling, VLANs, Ether Channel, Trucking, Port Security, STP & RSTP, and PVST+.
• Extensively exposed to troubleshooting, maintaining devices and migration of technology.
• Worked with PYTHON and PERL .
• Good Knowledge on various advanced technologies such as MPLS, VOIP, H.323, SIP, QOS, IPv6, VPN, WLAN, NAT, Multicast, Routing, Frame relay, SNMP.
• Extensive Experience in WAN Technologies, Switching Technologies along with Failover Mechanisms & Inter VLAN Routing types.
• Hands-on experience in configuration and setup of DHCP, FTP and TFTP.
• Network connectivity troubleshooting, ping, trace route, telnet.
• Knowledge on Cisco Firewalls, Cisco PIX (506E/515E/525/) & ASA 5500(5510/5540) Series, IDS.
• Network analysis and troubleshooting tools - Sniffer Pro, Wire shark, Agilent Network and analysis tools.
• Provided Teir-3 technical support for LAN/WAN issues and on-call for technical escalation on a rotational basis (Remedy Ticketing system).
• Worked with VMware player, virtual box and VMware workstation.
• Experience in technical documentation of Change management process and Project documentation using Excel and VISIO.
• A good team player with meticulous nature and a persevering attitude. A fast learner with good communication skills.
• Exceptional experience working in fast-paced, deadline-oriented environments.

TECHNICAL SKILLS

Network Products: Cisco Routers CRS-1, CRS-3, CRS-X, ASR 9K, ASR1K, ASR 1002, GSR 12000, 7600, 7200, 7500, 7300(SSG), 7200, 3945, 3800, 3900,3845, 3745, 2800, 2600, 2900, 2500, 1800, 1700, 1600, Juniper, ERX 500, Juniper M320, T640, MX960. Cisco switches Cisco Nexus 7010, 5596, 5020, 5010, Nexus 00v), Cisco 6500, 4900M, 4500, 4000, 3700, 3750, 3550, 3560, 2960, 2950, 2800, Juniper EX& M, HP 2910, Dell Brocade chassis & FWS switches

LAN Technologies: Workgroup, Domain, HSRP, DHCP, Static, VLAN, STP, VTP, Ether Channel, Trunks, PVST, RSTP

AAA Architecture: TACACS+, RADIUS, Cisco ACS.

WAN Technologies: Frame Relay, VPN (L2F, PPTP, L2TP, GRE), ISDN, PPP, ATM, MPLS,IPv6

Network Management: SNMP, Solarwinds, Cisco Works, HP Open view, Ethereal Sniffer, NX-OS

Load Balancers: CSS, ACE, F5,A10

Monitoring Tools: Wireshark, Nmap, Nessus, OpManager, PRTG Packet Sniffer, and Infoblox, Smarbits, Spirent Test Center, Agilent Router Tester (N2X Series), iPerf, jPerf

Routing Protocols: RIP, IXIA,IGRP, EIGRP, OSPF, BGP, IS-IS, HSRP, VRRP, and GLBP

Switching Protocols: VTP, STP, RSTP, MST, VLANs, ISL, 802.1q, Ether Channel, PAgP and LACP

Languages: C, C++, Java, XML, SQL, PERL and PYTHON

PROFESSIONAL EXPERIENCE

Confidential, Rhode island

Senior Network Engineer

Responsibilities:

• Installation, configuration, maintenance and troubleshooting of the company network. Duties included monitoring network performance using various network tools to ensure the availability, integrity and confidentiality of application and equipment and to provide support for Cisco network.
• Responsible for the global design, engineering and level 2/3 support of existing of network technologies services and the integration of new network technologies/services.
• Key contributions include troubleshooting of complex LAN/WAN infrastructure that include routing protocols (EIGRP, OSPF and BGP).
• Configuration, Testing, Planning, Design of Cisco routers, Cisco Catalyst 2900,3570 and 6500 switches and Cisco AirNet and wireless appliances.
• Worked on configuring and troubleshooting Nodes, Pools, Profiles, Virtual Servers, SSL Certificates, iRules, and SNATs on the F5 Big IPs using the Web GUI and CLI.
• Hands on experienced in Telecom/ Datacom testing tools like Smart bits, Spirent Test Center, Agilent Router Tester (N2X Series), Wire shark, I Perf.
• Performed system validation, testing and test automation development in Telecom/ Datacom and client/ server technologies.
• Configuring Virtual Device Context in Nexus 7010.
• Working with Cisco Nexus 2148Fabric Extender and Nexus 5500 series to provide a Flexible Access Solution for datacenter access architecture.
• Developed using PYTHON and PERL .
• Perform IOS upgrades in Cisco Routers and Switches including Nexus 3K and 5K.
• Migration for Frame-Relay/ATM network to MPLS based VPN for customer’s WAN infrastructure.
• Configured Cisco 7204 routers which were also connected to Cisco ASA security appliances providing perimeter based firewall security.
• Upgrade Cisco Routers, Switches and Firewall (ASA) IOS using TFTP.
• Resource management through deployment of network based monitoring applications to keep bandwidth & activity alongside each other.
• Configured Client VPN technologies including Cisco’s VPN client via IPSEC.
• Convert Checkpoint VPN rules over to the Cisco ASA solution, Migration with both Checkpoint and Cisco ASA VPN.
• Configured Firewall logging, DMZs and related security policies and monitoring.
• Installed and Configured a Cisco secure ACS server for AAA authentication (RADIUS).
• Manage Cisco Routers and troubleshoot layer1, layer2 and layer3 technologies for customer escalations.
• Design and implement Catalyst/ASA Firewall Service Module for various LAN’s.
• Performed switching technology administration including V lans, inter-V lan routing, trucking, port aggregation and link negotiation.
• Creating dedicated VLANs for Voice & Data with QOS for prioritizing VOICE over DATA
• 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.
• Remediation of firewall rules from checkpoint firewalls to Cisco ASA firewalls and their implementation.

Confidential, Canonsburg, PA

Network Engineer

Responsibilities:

• Expert working knowledge (including the ability to setup, configure, upgrade, manage and troubleshoot Cisco routers, switches, VPN concentrators, firewalls, IDS, IPS, 802.1x, Internet Proxy, 802.11 wireless access points and load balancers.
• Responsibilities include web administration, adding, and removing accounts including e-mail, server performance and maintenance, installation and configuration of Cisco 700, Cisco 1600, Cisco 2600, Cisco 3600, series Router and Cisco 2900, Cisco 3500 series switches and some Juniper routers. Knowledge of Installation and Configuration of T1, Frame Relay, and ISDN, ACE Authentication, Radius reporting, and IP Services.
• Creating and provisioning Juniper SRX firewall policies.
• Experience in Wireless LAN technology and understanding of Cisco Access Points and Controllers.
• Administration of ASA firewalls in the DMZ and FWSM in the Server Farm to provide security and controlled/restricted access.
• Designed and implemented security systems including various Cisco IOS ACLs, Context-Based Access Control, PIX Firewall (PIX 506, 515), Network Intrusion Detection Systems, AAA Cisco Secure Access Control Server (Radius/TACACS+) and Linux Syslogic servers. Planned, configured and operated IPSec VPNs.
• Experience in monitoring and analyzing the load balancing of network traffic using KIWI Solar winds.
• Experience with network emulation hardware/software tool SHUNRA.
• Worked with Cisco Nexus/NX-OS I Sr. routers and Cisco Catalyst Switches
• Troubleshooting latency and throughput issues on MPLS and dedicated internet access circuits.
• Worked on ASA 5505, 5510 models and migration from PIX to ASA.
• Worked on Cisco ACE load balancer for minimizing traffic congestion.
• Designed, built, and implemented Checkpoint Firewall-1 VSX, with Provider-1 running on a Crossbeam X-45 for evaluation by Chick-File.
• Provided on call supporting a 24/7 NOC (Network operations center).

Confidential, Los Angeles, CA

Network Engineer

Responsibilities:

• Managing entire LAN and WAN 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.
• Performed network administration tasks such as creation and management of VLANS, Port security, Trucking, RPVST+, Inter-VLAN routing, and LAN security.
• Worked with ASA Firewall configuration and Participated in Migration of PIX to ASA for hardware devices.
• Configured ASA 5520 to ensure high-end security on the network with ACLs and Firewall.
• Worked with Cisco Catalyst 6500, 4500, 4900 switches and Cisco 2800, 3600, 3800, 7200 & 7600 series Routers.
• Deployed Nexus 2000, 5000 and 7000 series switches.
• Involved in Network Designing, Routing, DNS, IP Submitting, TCP/IP protocol.
• Worked with Routing Protocols of EIGRP and BGP.
• Configured PVSTP+ for loop prevention and VTP for Inter-VLAN 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.
• Manage Cisco Routers and troubleshoot layer1, layer2 and layer3 technologies for customer escalations.
• IP Allocation& Maintenance for users and other needs throughout company.

Confidential

Network Engineer

Responsibilities:

• Configuring and troubleshooting multi-customer ISP network environment.
• Involved in network monitoring, alarm notification and acknowledgement.
• Implementation of new/changing existing data networks for various projects as per the requirement.
• Troubleshooting complex networks layer 1, 2(frame relay, ATM, Point to Point, ISDN) to layer 3 (routing with MPLS, BGP, EIGRP, OSPF and RIP protocols) technical issues.
• Used Wire shark for network packet capture.
• Provided support to networks containing more than 2000 Cisco devices.
• Performed troubleshooting for IOS related bugs by analyzing past history and related notes.
• Carried out documentation for tracking network issue symptoms and large scale technical escalations.
• Managed the service request tickets within the phases of troubleshooting, maintenance, upgrades, fixes, patches and providing all-round technical support.
• Commissioning and Decommissioning of the MPLS circuits for various field offices.
• Prepared feasibility report for various upgrades and installations.
• Installation and maintenance of new network connections for the customers.
• Configured all the required devices and equipment for remote vendors at various sites and plants.
• Installation of new equipment to RADIUS and worked with MPLS-VPN and TACACS configurations.
• Installation and maintenance of local as well as network printers.
• Validation of existing infrastructure and suggesting new network designs.
• Worked on creating new load balancing policies by employing BGP attributes including Local Preference, AS-Path and Community, MED.
• Installation and maintenance of Windows NT Workstations and Windows NT Server.
• Provided technical support to LAN & WAN systems.
• Monitored Memory/CPU on various low end routers in a network.