SUMMARY

• 8 years of experience in providing solutions, implementation, network designing, configuration of Cisco routers and switches, troubleshooting of complex networking system.
• Experience in designing, configuring, implementing, and testing of LAN, WAN, Ethernet, Frame relay and IP routing protocols such as OSPF, RIP, BGP, EIGRP.
• Worked on network topologies and configurations, TCP/IP, UDP, Token ring, ATM
• Strong hands on experience in installing, configuring, and troubleshooting of Cisco (2005,2006,2008,3600,3800,7200) series Routers, Cisco (1900,2900,3550,3750,4500,6500) series switches and Cisco VOIP Phones.
• Experience working with Nexus 7010,7018,5020,2148,2248 devices.
• Experience in Network security including NAT/PAT, ACL, IDS/IPS, ASA/PIX, Check Point Firewalls.
• Strong knowledge of TACACS+, RADIUS implementation in access control network.
• Extensive and In - depth knowledge in security including VPN and GRE.
• Configured Cisco routers/switches for VOIP including quality of service (QOS) guarantee of voice and data integrity.
• Exceptional skills in IPv4 Address management and Sub netting, VLSM, reverse and proxy ARP.
• Implemented traffic filters using Standard and Extended access-list, Distribute-Lists and Route maps.
• Experience with F5 load balancer, administration, management and upgrades to support 24x7 operations.
• Good knowledge and experience in Installation, Configuration and Administration of Windows Servers 2000/2003, Active Directory, Linux OS under various LAN and WAN environments.
• Experience in Network Management Tools and sniffers like SNMP, Wireshark and TCPdump.
• Extensive knowledge in OSI model and various network protocols (DNS, DHCP, FTP, TFTP, UDP, ICMP, NFS, SMTP, HTTP etc.,).
• Expertise knowledge in Putty, Exceed and Secure CRT.
• Experience in implementation, support and troubleshooting of VLANs including operational knowledge of spanning tree protocol( STP), VLAN Trunking, VRFs, Inter VLAN routing and ISL/802.1q.
• Good knowledge of high availability protocols like HSRP, VRRP.

TECHNICAL SKILLS

Operating Systems: Win XP, Win 7, Win 8, Win 10, working knowledge of Cisco IOS, JUNOS, Mac OS X and LINUX, UNIX

Protocols/services: Routing protocols (OSPF, EIGRP, BGP, RIP), TCP/IP, UDP, DNS, ARP, DHCP, Route Filtering, Redistribution, Summarization, Static Routing.

Switching: VLAN, VTP,LACP, STP, VPC RSTP+,PVST+, RPVST+, Inter VLAN routing & Multi-Layer Switching, Multicast operations, Layer 3 Switches, Ether channels, Transparent Bridging

LAN: Ethernet, Fast Ethernet, Gigabit Ethernet, FDDI, CDDI, Token Ring

WAN: Frame Relay, ATM, ISDN, PPP, HDLC, CSU/DSU.

Network Security: NAT/PAT, ACL, IDS/IPS, ASA/PIX, Check Point Firewalls

Programming Languages: C, Basic java, Python, SQL

Office Applications: MS-Office, MS-Visio

PROFESSIONAL EXPERIENCE

Confidential, Indianapolis, IN

Sr. Network Engineer

Responsibilities:

• Involved in configuring and implementing of Composite Network models, which consisted of Cisco 7600, 7200, 3800 series routers and ASR 9k and Cisco 2950, 3750, 4500, 6500 Series switches.
• Configured networks using routing protocols such as RIP, OSPF, BGP and manipulated routing updates using route-map, distribute list and administrative distance for on-demand Infrastructure.
• Basic and advance F5 load balancer configurations, including migrating configurations fromCiscoACEto F5.
• Built site-to-site IPsec VPNs over Frame-relay &MPLS circuits on various models of Cisco routers to facilitate adding new business partners to new and existing infrastructures.
• Analyzed customer application and bandwidth requirements, ordered hardware and circuits, and built cost effective network solutions to accommodate customer requirements and project scope.
• Configuring and troubleshooting WAN technologies like MPLS, T1, T3, DS3 and ISDN.
• Identified, designed, and implemented flexible, responsive, and secure technology services.
• Implemented Positive Enforcement Model with the help of Palo Alto Networks.
• Innovated with support of Palo Alto for remote and mobile users and for analyzing files for malware in a separate (cloud-based) process that does not impact stream processing.
• Created and provisioned Juniper SRX firewall policies.
• Deployed the switches in high availability configuration with HSRP.
• Monitored network for optimum traffic distribution and load balancing using Solar winds.
• Implemented security measures to keep networks running and secure. Configured extended ACLs to filter traffic and gave restricted access to certain users.
• ConfiguredMicrosoftservers and setup AD andgroup policies
• Used infoblox DNS appliances for updating, removing and adding of ip addresses.
• Upgrading IOS - Upgraded hardware and installed new devices, Tuning (Configuration), make standardization for the topology
• Installed & configured Microsoft Proxy Server 2.0 & Blue Coat Proxy.
• Supervised call center and technician routine maintenance and up-gradation of network device.
• Interfaced with customers and senior management for problem resolution and project planning.
• Configured redundant network connections to protect against network and switch failures and improve network performance.
• Involved in SNMP network management and used management information base (MIB) to manage the data in a network.
• Created document with technical configurations, billing, security standards design and network documentation using MS Visio.
• Configured Multiprotocol Label Switching (MPLS) VPN with Routing Information Protocol (RIP) on customer’s site.
• Installed, configured and maintained cisco DMVPN routers servicing smaller sites.

Environment: Cisco 7600,7200,3800 series routers, Cisco 2950,3750,4500,6500 series switches, RIP, OSPF, BGP, EIGRP, HSRP, MPLS, MS Visio, TCP/IP, VPN, ISDN, F5 load balancer.

Confidential, Basking Ridge, NJ

Network Engineer

Responsibilities:

• Designed, Installed and configured LAN, WAN management and configuredCisco Catalyst switches 6500, 4000 and 3750 series and Cisco ASR routers according to the Network Design along with the Data Center topology.
• Configured routing protocol OSPF, EIGRP, BGP. Configuration of port channel between core switches and server distribution switches was performed.
• Used TCP/IP protocol to govern all computers or network devices in internet.
• ConfiguredRIP and Static routing on JuniperM and MX series Routers
• Worked on Cisco Secure Access Control Server (ACS) for Windows to authenticate users that connects to a VPN 3000 Concentrator Router/ Microsoft VPN Server in order to access certain limited network resources from customer locations
• Involved in the redistribution into OSPF on the core ASA firewall.
• Implemented Hot Standby Router Protocol (HSRP) by tuning parameters like preemption.
• Configured HSRP for load balancing.
• Implemented Load Balancing using F5 Networks Big IP.
• Worked on Cisco Firewalls, Cisco PIX (506E/515E/525/) & ASA 5500(5510/5540) Series.
• Involved in the removal of EIGRP from all devices and making OSPF the primary routing protocol.
• Worked on multiplex techniques such as DWDM and VOIP.
• ConfiguredVDC and VPC on Nexus 5K and 7K switches
• Configured Virtual Device Context in Nexus 7010.
• Configured VLANs, HSRP, VRRP on Nexus 7010.
• Configured Virtual Server and Configured Load balancing methods in F5 LTM.
• Realignment and modification of BGP from the MPLS routers.
• Experience with configuring Nexus 2000 Fabric Extender (FEX) which acts as a remote line card (module) for the Nexus 5000
• Troubleshooting and installing of CRS, ASR 9000 and Nexus devices.
• Expertise on FTP, HTTP, DNS, and DHCP servers in windows server-client environment with resource allocation to desired Virtual LANs of network.
• Working experience in troubleshooting and network security related to Cisco ASA/PIX, Checkpoint, IDS/IPS and Juniper Net screen firewalls.
• Installed, configured and troubleshot Cisco wireless network, Wireless LAN controllers
• Designed L2VPN services and VPN-IPSEC authentication & encryption system.
• Deploy DMVPN and migrate the site-to-site VPN tunnel into DMVPN.
• Tuned BGP internal and external peers with manipulation of attributes such as metric, origin and local Preference.
• Design and Implementation of LAN, VLANs, VTP, Spanning Tree (STP), Trunking and Ether channel.
• Designed and implemented a windows 2000 Active directory forest with multiple domains, sites and organization units administered group policies to create specific desktop configuration for a particular group of users
• Installed and configured four PIX 525 and two ASA 5505 in the remote access location away from the central campus.
• Configured 3 PIX firewall for the Guest access.
• Implemented and troubleshoot security policies using ACL, Firewall, IPSEC, SSL, VPN, IPS/IDS, NAT using CLI.
• Responsible for turning up BGP peering and customer sessions, as well as debugging BGP routing problems.
• Enhanced the network access security and feasibility at a higher end using Cisco ISE implementation.
• Experience with Synchronous Optical Networking (SONET) over optical fiber.
• Monitor system performance and implements performance tuning.

Environment: Cisco ASR routers 9001,1006, Cisco catalyst switches 6500,4000,3750 series, OSPF, EIGRP, BGP, RIP,TCP/IP, ACS, VOIP, VPN, VTP, STP, SONET, FTP, HTTP, DNS, DHCP, Cisco ISE, MPLS, NAT.

Confidential, Marlborough MA

Network Engineer

Responsibilities:

• Configuring and troubleshooting multi-customer ISP network environment.
• Involved in network monitoring, alarm notification and acknowledgement.
• Implementing new/changing existing data networks for various projects as per the requirement.
• Performed troubleshooting, while maintaining trouble ticket tracking, following internal/external escalation procedures and customer notifications.
• Maintenance and Installation of Cisco 2960, 2975, 3750-E, 4500, 6500 Series Catalyst Switches.
• Conversions to BGP WAN routing which will be to convert WAN routing from OSPF to BGP (OSPF is used for local routing only) which involves new wan links.
• Configuring HSRP between VLANs, Configuring Ether-Channels, and Port Channel on 6500 catalyst.
• Configured OSPF on CISCO devices with multiple routing processes and redistributed them. Tested and hands on experience in multi area OSPF topologies.
• Wrote IOS and CAT OS upgrade procedures and Pre/Post checks for customer production upgrades
• Configured Cisco Routers for OSPF, IGRP RIPv2, EIGRP, Static and default route.
• Coordinated with Network Administrator regarding BGP/OSPF routing policies and designs, worked on implementation strategies for the expansion of the MPLS VPN networks.
• Provided administration and support on Bluecoat Proxy for content filtering and internet access to head quarter, remote site offices and VPN client users.
• Configuring Big-IP F5 LTMs (virtual servers, pools, SNATs, health monitors, rules) for managing the traffic and tuning the load on the network servers.
• Troubleshooting firewall and ACL related connectivity issues.
• Worked with other firewall team members to review security architecture and design documentation to ensure consistency, accuracy and compliance with security posture and industry requirements.
• Working Troubleshooting with the TCP dumps and wire shark.
• Installed 802.11 b/g Ethernet standards for wireless Technology.

Environment: Cisco 2960, 2975,3750-E, 4500,6500 series catalyst switches, OSPF, EIGRP, BGP, RIP,TCP, HSRP, IOS, MPLS, VPN, wire shark

Confidential, Minneapolis MN

Network Engineer

Responsibilities:

• Configured OSPF on CISCO devices with multiple routing processes and redistributed them. Tested and hands on experience in multi area OSPF topologies.
• Challenging maintenance of day-to-day management of Cisco Devices, Traffic management and monitoring.
• Configuring, managing and troubleshooting networks using routing protocols like RIP, EIGRP and OSPF (Single Area and Multi Area).
• Assisted with troubleshooting all networkissues with routers and switches when necessary and consulted with on call tech as needed for client.
• Monitor, troubleshoot, test and resolve Frame Relay, ATM, MLPPP, PPP, and Dial-up.
• Configuring/Troubleshoot issues with the following types of routers Cisco (7200, 6500, 4500, 1700, 2600 and 3500 series), to include: bridging, switching, routing, Ethernet, NAT, and DHCP, as well as assisting with customer LAN /MAN.
• Actively participated in upgrading fast Ethernet, Layer 3 switched/routed LAN infrastructure from Cisco 3640 to Cisco 2811 ISR routers and switches at access level to 2950, 3550.
• Installation and Configuration of various types of Personal Computers and Printers. Installation of different operating systems on Intel based PC's.
• Configuring Vlan's, VTP's, enabling trunks between switches.
• Assisted in networkengineering efforts consistent with the infrastructure of an Internet Service Provider and support of such networkservices. Helped in designing and implementation of VLAN for the new users.
• Plans, coordinates, implements and supports the LAN / WAN hardware, software and Internet /Intranet integration networkconnectivity, diagnose networkfailures and resolve any problems.
• Troubleshoot Frame Relay; T1, T3, IP and OSPF related router and circuit issues.
• Documenting and Log analyzing the Cisco PIX series firewall.

Environment: Cisco Routers 2600, 2800 and 3800 series, Cisco Switches Cat 1900, 2900, 3500, 4500 series, Cisco ASA 5506, 5510.

Confidential

Jr. Network Engineer

Responsibilities:

• Troubleshooting IOS related bugs based on past history and appropriate release notes.
• 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.
• Assist the certification team and perform configuration of LAN\WAN technologies such as Ethernet, Fast Ethernet, and Gigabit Ethernet.
• Provided Cisco Routers support in a Wireless LAN/LAN/WAN environment by Installing/configuring Trip Wire and trouble-shooting Network connectivity issues in a multitasking Ethernet environment
• Implementing traffic engineering for Multiprotocol Label Switching (MPLS) network using Frame Relay and Open Shortest Path First (OSPF).
• Management, Installation, configuring and troubleshooting of Proxy, DHCP, RAS, VPN and Linux servers.
• Hands on Experience in VLAN and Inter-VLAN routing, redistribution, access-lists and dynamic NAT.
• Configured Access List ACL (Std, Ext, and Named) to allow users all over the company to access different applications, Internet and compliance to the security policy and standards.
• Troubleshootnetworkproblems using Packet Analysis tools like Ethereal.
• Experience with spanning tree and Network architecture design which includes dynamic routing, static routing, VLAN setup, traffic splitting.
• Identified and resolved VLAN, VTP, STP, RSTP and IP subnet issues and Troubleshoot connectivity problems using Ping, Trace route.
• Worked on maintenance and troubleshoot of the network infrastructure.
• Provided assistance to Network Manager and serve as Secondary Network support.
• Ensure data center operation success through network, server, and infrastructure monitoring and troubleshooting.

Environment: Cisco 7500,7200, Cisco Catalyst 4500, 6500, 7600; OSPF, EIGRP, RIP, BGP, ATM, Frame relay, MPLS, Fast Ethernet, Gigabit Ethernet, Access List (ACL), Ethereal, VLAN, inter VLAN, VTP, STP, RSTP, IP subnet, Ping, Trace route, ARP, DHCP, RAS, VPN, Linux, MS Office, MS VISIO.