SUMMARY

• 8+ years of experience in the field of Network Engineering with strong and extensive knowledge of Design, Configuration, Implementation, Operation and Support of Cisco Routers, Switches, and VPN Devices
• Planning, Designing, Installing, Configuring of Cisco 6500, 4500, 3750, 3500, 2900 XL series switches, Cisco 7200, 3800, 3600, 2800, 2600, 2500, 1800 series Routers.
• Good knowledge ofIP Addressing, Subnetting, VLSM, ARP, OSI and TCP/IP models
• Installing and configuring L2 and L3 layer switches.
• Experience in configuring various Switching Techniques like Configuring VLANs, VTP and Spanning Tree (STP).
• Experience in Trunk Protocols (802.1q, ISL), Link Aggregation Protocol (LACP, PAGP).
• Experience in configuring and troubleshooting various Layer 3 Routing Protocols RIP, OSPF, BGP, EIGRP and MPLS.
• Responsible for designing and implementation of customer’s network infrastructure.
• Designing & Implementing VPN connectivity for new sub sites.
• Designing & Implementing different connectivity solutions.
• Verifying and configuring rules on a firewall.
• Configuring Network Address Translation (NAT) according to the connectivity requirements.
• Troubleshooting problems related to firewalls, VPN connectivity issues.
• Planning & implementing information security guidelines as per the security standards.
• Implementing security policies using ACL, PIX firewall, ASA and Routers.
• Installing, configuring and troubleshooting DNS and DHCP servers.
• Installing and implementing Network Load Balancing Using HSRP, VRRP.
• Troubleshooting Layer 1, 2, 3 issues using Wireshark.
• Designed QoS policies for critical applications based on requirements and traffic patterns.
• Working Knowledge of Toad - SQL, batch scripting, Oracle 9i and Unix SUN Solaris 8
• Installed, configured, maintained online/offline servers and Interactive Voice Response Systems (IVRS).
• Maintain and apply security and operating system patches and enhancements on servers and pc’s
• A highly organized individual who adopts a systematic approach to problem solving, effectively analyzes results and implements solutions.
• Excellent communication skills, Enthusiastic, motivated and a team player.

TECHNICAL SKILLS

LAN Technologies: Ethernet/ Fast Ethernet/ Gigabit Ethernet networks, VLAN, VTP, VLAN Routing, STP, 802.1W, 802.11a/b/g.

Network Hardware: Cisco Routers:1800, 2500, 2600, 2800, 3600, 3800, 7200Cisco Switches:1900, 2900, 3550, 3750, 4500, 6500ASA Firewall: 5505,5510

Cisco IOS: IOS 11.x, 12.x, PIX OS 6.x, 7.x

Firewalls/VPNs: ASA, Cisco VPN 3000 series Concentrator

Switching Techniques: MAC/ LLC, PPP, ARP, RARP, VTP, STP, 802.1q, ISL, LACP, PAGP

Protocols: OSPF, BGP, STP, RIP, IGRP,EIGRP and SIP

WAN: Frame Relay, ATM, ISDN, PPP, HDLC, MPLS

Authentication Protocols: PAP and CHAP

Tools: Wireshark, Tektronix and OmniPeek

Documentation: MS Visio, MS Word, MS Excel and Asana

Languages: Linux/Ubuntu/Shell, Unix SUN Solaris 8, HTML5, CSS2, PHP, batch, Oracle 9i, Toad SQL

PROFESSIONAL EXPERIENCE

Confidential, ITASCA IL

Sr. Network Engineer

Responsibilities:

• Managing CISCO based infrastructure including CISCO Routers, Switches, ASA and Cisco ACE (load balancer).
• Configuring and maintaining routers with dynamic routing protocols EIGRP, OSPF.
• Worked on Switching technology administration by creating and managing VLANs, 802.1Q trunk, Inter VLAN routing, STP, Port Security, VTP.
• Troubleshooting latency and throughput issues on MPLS and Dedicated Internet Access circuits.
• Worked on implementation of network security using Access lists, IDS/IPS.
• Configure/maintain Internet filtering and security on public access pc’s
• Policy configuration and management of firewalls
• DNS changes as per client requests
• Troubleshooting and documenting EVDO related problems on PDSN, AAA, OMC, Call
• Maintain and apply security and operating system patches and enhancements on servers and pc’s
• Configured standard and extended ACL’s on the servers to limit its access.
• Configured static NAT, dynamic NAT, inside global address overloading, TCP overload distribution, overlapping address translation.
• Handling Data center daily operations, Routine Health check and documentation.
• Manage and coordinate all infrastructure related moves, adds, and changes.
• Provided routing support including configuration and troubleshooting of various routers.
• Implemented and troubleshot communication networks including TCP/IP and IPSEC
• Implemented IP, SIP/SDP, RTCP, RTP, TCP, UDP Packets capture and analysis using WIRESHARK (ethereal)

Confidential, Cincinnati, Oh

Sr. Network Engineer

Responsibilities:

• Configured VLAN’s with 802.1q tagging. Configured Trunk groups and Spanning tree for creating Access/distribution and core layer switching architecture and also for security.
• Configuring BGP, EIGRP and OSPF routing protocols for enterprise network and provided Support.
• Managed IP Addressing and configured Access Lists.
• Hands-on experience with WAN (ATM/Frame Relay), Routers, Switches, TCP/IP and IP addressing.
• Implemented and troubleshot communication networks including TCP/IP and IPSEC.
• Configuring and troubleshooting Multiprotocol Label Switching (MPLS) like levels of control, MPLS forwarding, traffic engineering.
• Configured and managed DNS and DHCP server.
• Involved in troubleshooting of DHCP and other IP conflict problems
• Troubleshooting the network for the network connectivity issues and network performance issues.
• Planning & implementing information security guidelines as per the security standards on the firewalls.
• Working and Implementing the DNS in Global Network.
• Installing, Configuring, Administering and supporting the Windows 2003 Server, Windows 2000 Server, Windows 2000 Advanced Server, IPD server and Toad SQL Server.
• Responsible for Installation of Anti-Virus, virus detection and spy ware removal.
• Conducted and implement Network and software installations and upgrades.
• Installed Maintained software license agreements.
• Assisted users with requests with software and Hardware related issues.
• Capacity and performance management of existing infrastructure.

Confidential, San Diego, CA

Network Engineer

Responsibilities:

• Applied effectively various routing protocols including EIGRP, OSPF and BGP Implemented Redistribution of Routing protocols.
• Involved in installations and network administrations which include maintain LAN/WAN connectivity and traffic, i.e. managing overall LAN/WAN .Uploading and Downloading of IOS from tftp server. I have handled troubleshooting of DNS, DHCP and other ip conflict.
• Securing the network with access lists applied on interfaces.
• Address issues like routing problems, route announcements/advertisements, and security access issues.
• Managed and maintained DNS, DHCP protocols and Active- Directory Infrastructure.
• Configured NAT to redirect TCP traffic to another TCP port and address.
• Daily administration of NT server including creation/deletion of new user accounts, print services, backups.
• Implementing IP Routing protocols EIGRP, OSPF and IPSec.
• Implemented BGP for multi home configuration for internet and MPLS links for auto fail over.
• Rolling out the connectivity between Database server, MIS Server, IN (Intelligent Network service) and MSC

Confidential, NYC

Network Administrator

Responsibilities:

• Involved in troubleshooting of complex LAN/WAN infrastructure that include routing protocols EIGRP, OSPF & BGP.
• Support for problem resolution including performing diagnostics, and configuring network devices.
• Responsible for layer 2 securities which was implemented using a dedicated VLAN ID for all trunk ports, setting the user ports to non trunk, deployed port security when possible for user ports.
• Used Dynamic Host Control Protocol (DHCP) to automatically assign reusable IP addresses to DHCP clients.
• Configured STP prioritization for selection of the root bridge.
• Monitoring and capturing the traffic with multiple network management tools like Sniffer Infinistream, Ethereal, Wireshark and OmniPeek
• Configured standard and extended ACL’s on the servers to limit its access.
• Configured static NAT, dynamic NAT, NAT overloading, TCP overload distribution, overlapping address translation.
• Provided routing support including configuration and troubleshooting of various routers.

Confidential, TX

Network consultant

Responsibilities:

• Managed all LAN infrastructures for the firm. such as installation and configuration of routers & switch. Performed network monitoring, troubleshooting network outages, provided ongoing system administration.
• Insured current documentation was kept on LAN/WAN configurations.
• Maintained OSPF, EIGRP, RIP and static routing protocol on CISCO routers and catalyst switches.
• Configured and maintained VLANS and the VLAN database, managing VTP servers for updated VLAN information.
• Setup TFTP server to maintain CISCO router configurations and CISCO images. Worked on network software and hardware upgrades.
• Worked on Layer 2 security in Server Farms by configuring switch for 802.1x port based authentication.
• Attended various hardware issues for PCs, Printers.
• Install and maintain Windows 2000/2003/NT servers. Configuring DHCP, DNS servers.
• Provided support to Help Desk for complex/major network problems.

Confidential, Pittsburgh, PA

Network Engineer

Responsibilities:

• Planned, designed, Installed and Configured of Cisco Routers & Cisco L2 & L3 Switches.
• Deployed and implemented corporate infrastructure using protocols RIPv2, EIGRP, OSPF and BGP.
• Configured and implemented STP, VLAN, VTP and Port binding.
• Redistribution of routing protocols, Route-maps (Policy Based Routing), ACL, NAT.
• Troubleshooting Routers and Switches for network connectivity and performance issues.
• Implemented VPN connectivity in different sites.
• Designed and Implemented Remote access VPN server using Checkpoint & Cisco ASA.
• Implemented HSRP on the routers.
• Installation, Maintenance and troubleshooting Local and Wide area network (ISDN, Frame Relay, NAT, DHCP, TCP/IP and a variety of routing, hardware and networking issues).