SUMMARY

• Over 6+ years of experience in design, development, implementation, trouble shooting and maintenance of complex network systems
• Cisco Certified network associate (CCNA) from Cisco Systems and pursuing (CCNP) certification currently
• Worked on firewall Pix525, and other tools like SNMP, AAA, RADIUS and designed VPN with IPSEC security layer
• Extensive experience in Layer 3 routing and Layer 2 switching and dealt with router configurations like 7200,3800, & 2800 and switches 6500, 4500, 3750,2900 and 3500XL series
• Experience testing Cisco routers and switches in laboratory scenarios and deploy on site for production
• Proficient in configuration of routing protocols like RIP, IGRP, EIGRP and OSPF multiple areas BGP
• Worked on MPLS - VPN designs and MPLS-QoS for the migration of Frame relay to MPLS system
• Involved in designing L2VPN services and encryption system and other VPN with IPSEC based services
• Expertise in IP subnetting and worked on various designing and allocation various classes of IP address to the domain
• Involved in troubleshooting of IP conflict problems and worked on Gigabit Ethernet and Fast Ethernet connection and applied QoS for the bandwidth delay
• Extensive experience taking copy of Cisco IOS on TFTP server and loading on back on routers and knowledge on HP openview software
• Extensive Troubleshooting experience in ISDN and telephony circuits CSU/DSU connections
• Hands on experience on NAT (Network address translation ) configurations and it’s analysis on troubleshooting issues related access lists (ACL)
• Involved in monitoring network traffic and its diagnosis using performance tools like Snort, Snortsnarf, ping tools, and packet player
• Excellent communication and documentation skills and is able to work individually and team member.

TECHNICAL SKILLS

Networking: Familiar with Windows, Cisco, UNIX &Linux internetworking

Protocols & Software’s: OSI,TCP/IP, DHCP, UDP, DNS, RIP v1, RIP v2, IGRP, EIGRP, OSPF, IS-IS, BGP, HSRP, VRRP, and QoS

Operating Systems: Windows NT/200/2003, UNIX

Routers: Cisco 2811, Cisco 6509-E(Multi layer Switch), Cisco7200, Cisco3800, Cisco 3640, and Cisco 3745

Switches: Cisco Multi-layer Switch 6500, Catalyst 4500, Catalyst3750, Catalyst2900 and Catalyst3500XL

Network Monitoring tools: HP openview, Cisco Works, Netscout, Ethereal, tcpdump, netcat, Sniffer, snort & snortsnarf, MRTG

Hardware Platform: Cisco Routers, Ethernet Switches

LAN/WAN technologies: T1, DS3,OC3, SONNET, MPLS, DSU/CSU

PROFESSIONAL EXPERIENCE

Confidential, Wilmington, Delaware

Senior Network Engineer

Responsibilities:

• Involved in designing VPN architecture with IPSEC, VPN-Services, RADIUS-Servers, IP-addressing and IAS log viewer of the end user
• Deployment of OSPF dynamic routing NOC engineering network routers, previously running RIP and Static routes
• Provide Technical support to end-user either through remote management or onsite based on the requirement.
• Installation of windows active directory for the creation of users and groups and assigning policies based users application
• Hands on experience on Windows server installation components like DNS,DHCP, Active directory and ISA application for load balancing on the servers
• Familiar with Remedy trouble ticketing system and the escalation of issues from level 1 through level 3 assignment in the NOC operation
• Trouble Shoot routers, Testing Data Circuits E1, ISDN lines,
• Experience in Configuration of ADSL (PPPoE, PPPoA), ISDN, leased lines and frame relay connections
• Using Local Management Interface (LMI) involved in monitoring VC’s (Virtual circuits) status and network congestion using FECN and BECN for Frame rely topology
• Experience on configuration of routing protocols like EIGRP, OSPF multiple areas
• Network monitoring of LAN/WAN using tools like snort, snortsnarf and ping tools.
• Maintenance of Cisco AAA server database and deployed AAA authentication, authorization and accounting to all Cisco devices
• Closely monitor VPN service functionality based on two Cisco PIX 525 Firewalls and VPN accelerator card for high speed services
• Involved in setting up supervisor engine 32, sup720, sup 2 and installing IOS/CATOS codes for the boot-up process
• Worked on the Cisco devices like 6509, 6513, 7200, 2811, 5500 and worked on all line cards and port configuration for the VLAN
• Used Avaya MSA (Multi Site Administrator) for the Avaya Phone and for the Pre and Post configuration check-ups for the IDF- IOS conversion project
• Worked on dealing with 6509/6513 Chassis problems and troubleshooting of Err-disabled ports and re-setting to normal port status
• Worked on PIX firewalls for building the ACL rules for the extranet connectivity and implementation of the rules on the corporate firewalls and monitored logs for the issues
• Responsible for managing the TFTP logs for the VPN and firewall services and troubleshoot the VPN tunnel issues like SA, RSA, ISAKMP encryption and cleared/refresh VPN tunnel issues
• Setup sniffer traces for the error ports on switches and monitor the issues by mapping them onto sniffer ports and logs on the sniffer
• Used Cisco-Works/solar winds for the tracing of IP address, mac-addresss, ports, servers attached to the various switches
• Troubleshoot the BGP neighbor flapping issues and configures RIP/BGP redistribution, implemented OSPF metric tuning for the internal routing of the vanguard
• Worked on Inconsistent VLAN issues across the IDF 6504/6509 Cisco switches and removed the VLAN across the trunks and implemented Rapid Spanning tree from STP

Confidential - Tampa, Florida

Network Engineer

Responsibilities:

• Designed MPLS VPN and QoS for the architecture for the CitiFI group using Cisco multi layer switches
• Cisco IOS experience on 3600/7200 class hardware in complex WAN environment and experience on Cisco OS and IOS on CAT6500 in a complex data centre environment
• Hands on experience installing Sup720 for Cisco 6509-E series and its Gigabit Ethernet port deployment in the core network
• Experience in configuring routing protocols like EIGRP,RIP v2, OSPF & BGP and Cisco ACS protocols like RADIUS and TACACS
• Coordinated with senior engineers with BGP/OSPF routing policies and designs, worked on implementation strategies for the expansion of the MPLS VPN networks
• Involved in IP Quality of Service (QoS) implementation including Priority and Class-Based Weighted Fair Queuing, IP Precedence, DiffServ
• Hands on experience with Cisco 3500, 3750, 4500, 6500 series equipment and configuring and deploying from the scratch and fixing them with various modules like Gig card, VPN SPA Card,T1-WIC card and other modules
• Experience in deploying EIGRP/BGP redistribution and the changing the metrics for the primary and backup paths for the packet prioritization and EIGRP tuning
• Experience on a mesh 6500 and 5500 series routes and switches to support the core trading system. Involved in designing data communications and networks utilizing that utilize a mixture of frame relay, point to point T1, T3 & OC3 lines
• Involved in designing and applying QOS and policy MAP QOS to WAN to 2800 series routers for all the branches
• Worked on Riverbed devices for WAN bandwidth Optimization in the data centers for the sensitive market data applications
• Worked on Netscout and Sniffer traces of the packets for finding the loop holes in the network and improved the resources like bandwidth, Round trip time, and availability
• Understanding of IPSEC & GRE tunnels in VPN technology implementation using Cisco IOS and have checkpoint firewall /VPN

Confidential, Jersey city, NJ

Network Engineer

Responsibilities:

• Involved in Cisco router and switch administration, familiar with enterprise level Cisco switches such as 6500, 4500, 3750,2900 series Catalyst and 7200,3800, & 2800 routers
• Experience in routing protocols like OSPF, BGP, and standby protocols like HSRP and VRRP application in the routers
• Designed VLAN’s, access lists (ACL), troubleshooting IP addressing issues and Updating IOS images and other hardware installations
• Experience in troubleshooting VLAN, STP (Spanning tree protocol), & Switch Trunk and IP subnet issues
• Monitoring the Network condition using SNMP protocol about the WAN connection, Switch status, printer server, and controlling projectors and other equipment remotely and used FIX protocol for finance transactions
• Have good theoretical knowledge on QOS with queuing like WFQ, WRR and DWRP and Multicasting
• Deployment of OSPF dynamic routing in the network routers, removal of old RIP routing and static route environment
• Worked on IGRP and EIGRP implementations for client on global locations and interacting with them about the circuit status
• Worked on the CatOS to IOS conversation of enterprise IDF Cisco switches and MDF ‘s upgrades of IOS image to a news 12.2 version
• Dealt with configuration, migration of VLAN from old to new VLAN domain and worked on the allocation of Class A IP address range to infrastructure devices
• Dealt with NAT configuration and it’s troubleshooting issues related access lists and DNS/DHCP issues within the LAN network
• Involved in Configuration of Access lists (ACL) on checkpoint firewall for the proper network routing for the B2B network connectivity
• Provisioning and troubleshooting Ethernet services, Gigabit networks and Connectivity issues with WAN types (T1, E1, DS3, and Frame relay) data circuit debugging

Confidential

Network Engineer

Responsibilities:

• Involved in designing a MPLS network liaising with other ISP’s and part of the network team for IP deployment.
• Experience in trouble shooting of Cisco VOIP system and its protocols like SIP, MGCP and H.323
• Debugging and troubleshooting of VOIP call basics and involved in configuration of VOIP system at customer end
• Testing and troubleshooting of layer1 circuit and layer 2 devices and WAN connections establishment and protocol debugging
• Experience in testing and designing with EIGRP, OSPF, IS-IS and BGP routing protocols and the multiple areas and Autonomous systems of OSPF and BGP
• Supported channelization using protocols like (PoS),PPP,HDLC, Frame relay, ATM, Inverse multiplexing over ATM and broadband support over PPPoX
• Worked on BGP multi-homing issues and HSRP routing troubleshoot for the CER routers and PER routers and involved in testing router series 6500 & 7500 for developing its features
• Experience in implementation, support and trouble shooting of VLAN’s including operational knowledge of spanning tree protocol (STP), VLAN trunking, inter VLAN routing and ISL/802.1q
• Experience in WAN connectivity using Cisco routers by using T1, T3 and frame relay connections and the its troubleshooting issues.
• Liaising with ISP’s in related to circuit problems and raising tickets and with Remedy ticketing system and relating remedy to HP ovpenview system
• Monitor the ticket queue for incoming tickets, Update tickets in accordance to Service Level Agreement requirements and, escalate based on severity levels using Remedy
• Troubleshooting of Routers, Installing and Configuration of Cisco Multi Layer Switches like 3550
• Configuration and troubleshooting of Port Channel VLAN’s and Inter VLAN routing, CISCO, and Spanning Tree configuration and Trunking with 802.1q
• Worked and troubleshoot on the Cisco routers like 2500, 2600 and 3600
• Have knowledge and worked on switches like 1900, 2900, 2950 and 3500XL
• In depth understanding and configuration of PPP (PAP, CHAP), PPP fragmentation and ATM for LLU - use of VPI/VCI switching paths