SUMMARY

• Network Engineer with over 7+ years of experience in the industry, which includes expertise in the areas of routing and switching.
• Expert level knowledge of troubleshooting, implementing, optimizing and testing of static and dynamic routing protocols such as EIGRP, OSPF, BGP ability to interpret and resolve complex route table problems.
• Implementation traffic filters on Cisco routes using Standard, extended Access list.
• Expert Level Knowledge about TCP/IP and OSI models.
• In - depth expertise in the analysis, implementation, troubleshooting & documentation of LAN/WAN architecture and good experience on IP services.
• In-depth knowledge and hands-on experience on IP Addressing, Sub netting, VLSM and ARP, reverse & proxy ARP, Ping Concepts.
• Experience with different Network Management Tools and Sniffers like SNMP, NNM, Splunk, HPNA, Riverbed and Cisco works to support 24 x 7 Network Operation Center.
• Worked extensively in Implementing & Managing LAN, WLAN & WAN solutions for different client setups.
• In-depth knowledge and experience in WAN technologies including T1/T3,HDLC, Point to Point, ATM & Frame Relay
• Hands on experience in upgrading NX-OS and configuring VPC, FEX, FABRIC PATH on Cisco Nexus 7000,5000 and 2000 switches.
• Worked on Cisco UCS 5100 series blade server chassis, Catalyst 2960, 3750, 4500, 6500 series switches and Cisco 2600, 2800, 3600, 3800, 7200, 7600 series routers.
• Worked on Cisco Meraki wireless environment and managing the MR wireless access points and MS switches.
• Experience in Physical cabling, IP addressing and Sub netting with VLSM using QIP configuring and supporting TCP/IP, DNS, installing and configuring proxies.
• Ability to Install, Manage & Troubleshoot Large Networks & Systems Administration on Windows & Linux platforms in Development, Staging, Lab & Production Environments.
• Strong Experience in using various tools for management, analyzing, and troubleshooting, monitoring & process automation in Lab &Production environment.
• Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP Ether channel, STP, RSTP and MST.
• Hands on experience on Aruba wireless access points and Aruba wireless controllers.
• Experience in configuring HSRP and redistribution between routing protocols troubleshooting them.
• Involved in troubleshooting network traffic and its diagnosis using tools like ping, traceroute, Wireshark, TCP dump and Linux operating system servers.
• Worked on Nexus platform includes 7000, 6000, 5000 and FEX 2000 series and ASR 1006, 1009 series WAN routers.
• Worked extensively in Configuring, Monitoring and Troubleshooting Cisco's ASA 5500 security appliance, IPS/IDS, Failover DMZ zoning & configuring VLANs/routing/NATing with the firewalls as per the design.
• Troubleshooting DNS/DHCP issues within the LAN network and worked on risk assessments with threat analysis.
• Implementation of HSRP, VRRP and GLBP for Default Gateway Redundancy.
• Excellent communication skills to interact with team members and support personnel and also can act as a mentor to less experienced personnel.

TECHNICAL SKILLS

Networking Concepts: OSI Model, TCP/IP, UDP, IPV4, IPv6, Subnetting, VLSM

Routing Protocols: RIP, IGRP, EIGRP, IS-IS, OSPF, BGP, Static Routing, Route Filtering, Redistribution, Summarization

Gateway Load Balancing: HSRP, VRRP, GLBP

Infrastructure services: DNS, ICMP, SNMP, ARP, IRDP, NAT, SYSLOG, NTP, DHCP, CDP, TFTP and FTP

Switch Technologies: VLANs, VTP, STP, RSTP, PVST+, DTP, MLPPP, IEEE 802.1q, MPLS, ISL and dot1q, SMTP, VLAN, Inter-VLAN Routing, LWAP, and VOIP.

WAN Technologies: Frame Relay, PPP, HDLC, (E1/T1/E3T3)

Scripting Languages: Python, Java

Security: VPN, NAT/ PAT, access-lists, IPSEC, Juniper SRX, TACACS+, RADIUS

Firewall: Cisco ASA, Juniper Secure Access VPN Appliance, IDS/IPS, Checkpoint and Palo Alto

Network Management Tools: Wireshark, Net flow Analyzer, Riverbed, Splunk, E-Health, NNMI and HPNA

Load Balancers: Cisco CSM, F5 Networks (Big-IP) LTM 8900, Cisco ACE 4710

Operating Systems: Microsoft Windows Server 2003/2008/2012 , Windows XP/Vista/7/8, Linux

Other Technologies: VISIO, VMware, GNS3, Microsoft Word, Excel, SQL

Cloud Technologies: AWS cloud services EC2, VPC, Route53

PROFESSIONAL EXPERIENCE

Sr Data Network Operation Engineer

Confidential, Volo - IL

Responsibilities:

• In-depth expertise in the analysis, implementation, troubleshooting & documentation of LAN/WAN architecture and good experience on IP services.
• Provide day to day support for Network team and operations tasks and on-call technical support for the Network operations team; including assisting peers with issues and escalation.
• Handled Incident tickets related to the issues in the Network operation along with the connectivity issues.
• Complex troubleshooting to include network protocol and log analysis, raw data captures, and the correlation of disparate events spanning multiple devices and platforms.
• Configuring Static, EIGRP, BGP and OSPF Routing Protocols on Cisco 1600, 2600, 2800, 3600, 7300 series Routers.
• Work on assigned tickets to determine the point of failure and resolve problems remotely utilizing available tools and other Operation Center resources
• Hands on experience in configuring Cisco Nexus 2k/5k/7k, Cisco UCS 5100 series, Catalyst 2960, 3750, 4500, 6500 series switches and Cisco 2600, 2800, 3600, 3800, 7200, 7600 series routers.
• Worked on Cisco Meraki wireless environment and managing the wireless access points.
• Configure various LAN switches such as CISCO CAT 2900, 3560, 4500, 6509 switches and Access layer switches such as Cisco 4510, 4507 switches for VLAN, Fast Ether Channel configuration.
• Configured inside ACL, outside ACL, inside, outside interfaces.
• Worked with ISP providers for T1/T3 circuit issues and escalating with vendor related issues.
• Monitoring Aruba AP135 wireless access points and connection with Aruba 3600 wireless controllers.
• Experience in migration of VLANS & Configured VLANs with 802.1q tagging, Ether channels, and Spanning tree for creating Access/distribution and core layer switching.
• Implementation of Access Lists for allowing/blocking desired traffic.
• Configured EBGP load balancing and Ensured stability of BGP peering interfaces
• Creating Network design Diagrams and physical identification in MS Visio.
• Performed IOS upgrades on cisco 3825, 3925 series routers, ISSU upgrade on nexus 6000 and 7000 series, catalyst 6500, 4500, 3560 switches and ASR 1000 series routers.
• Worked with engineering team to resolve tickets and troubleshoot L3/L2 problems efficiently.
• Monitorednetworkstatus vianetworkmonitoring software (Wire Shark,SolarwindsNetwork Monitoring)
• Configured Cisco 2800, 3800 routers and 3750, 4500, 6500 switches as part of the implementation plan.
• Configured of Out Of Band devices Lantronix for remote console access on dial-up connections.
• Assisting field technician during replacement and migration of data center network devices.

Senior Network Engineer

Confidential - Richardson, TX

Responsibilities:

• Configured Routing protocols such as RIP, OSPF, EIGRP, static routing and policy based routing.
• Team member of Configuration ofCisco7206 router with VPN and Configuration of Catalyst switches.
• Configuration 7609, 7606 with OSPF and catalyst 6505, 4500, 3550 switches with various VLAN.
• Create and testCisco router and switching operations using OSPF routing protocol, ASA Firewalls, and MPLS switching for stable VPNs worked with IPS/IDS for network detection.
• Configuration and troubleshooting link state protocols like OSPF in single area and multiple areas.
• Redesign of Internet connectivity infrastructure for meeting bandwidth requirements.
• Optimized performance of the WANnetworkconsisting of Cisco 3550/4500/6500 switches by configuring VLANs.
• Configured VLANs with 802.1q tagging. Configured Trunk groups, ether channels, and Spanning tree for creating Access/distribution and core layer switching architecture.
• Configuration and troubleshooting of Cisco 2500, 2600, 3000, 6500, 7500, 7200 Series routers.
• Providing Technical Support and solutions forNetwork Problems.
• Planned, tested and evaluated various equipment’s, systems, IOSs and procedures for use within the Network/ security infrastructure.
• Worked on Juniper EX3300, EX2300 and QFX5100 series switches and upgraded JUNO-OS
• Upgrading IOS, troubleshootingnetworkoutages and worked with Nexus NX-OS.
• Participate in all technical aspects of LAN, WAN, VPN and security Internet Service projects including, short and long term planning, implementation, project management and operations support as required.
• Configured and troubleshoot cisco WAP, and cisco prime
• Hands-on experience in the network management of circuits using TDM and Frame Relay network, performing configuration and provisioning management, fault management and performance monitoring

Environment: Cisco ASA 5540, BIG-IP LTM 8900, QOS, Policy-maps, Class-maps, Nexus, VLAN’s, STP, RSTP, PVSTP, VTP, HSRP, Ether Channel, BGP, OSPF, EIGRP, MPLS, ATM, PPP, HDLC. SNMP, TACACS+, DNS, DHCP, Checkpoint, F5 Load balancer, Nexus 7K,5K,2K,Juniper 3600,5600

Network Engineer

Confidential, Charlotte NC

Responsibilities:

• Involved in Configuring and implementing of Composite Network models consists of Cisco7600, 7200, 3800 series routers and Cisco 2950, 3500, 5000, 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.
• Configured OSPF redistribution and authentication with type 3 LSA filtering and to prevent LSA flooding.
• Configured OSPF over frame relay networks for NBMA and point to multipoint strategies.
• Implementing traffic engineering on top of an existing Multiprotocol Label Switching (MPLS) network using Frame Relay and Open Shortest Path First (OSPF).
• Provided redundancy in a multi homed Border Gateway Protocol (BGP) network by tunings AS-path.
• Implemented HSRP and various OSPF scenarios on networks consisting of 7600 routers.
• Configured policy based routing for BGP for complex network systems.
• Configured Multiprotocol Label Switching (MPLS) VPN with Routing Information Protocol (RIP) on the customer’s Site.
• Continually monitor, assess and improvenetworksecurity, test and implement new security technologies.
• Tuned BGP internal and external peers with manipulation of attributes such as metric, origin and local Preference.
• Cisco Secure Access Control Server (ACS) for Windows to authenticate users that connects to a VPN 3000 Concentrator.
• Configured BPDU Guard, port-fast, uplink fast and other spanning tree features.
• Worked on FTP, HTTP, DNS, DHCP servers in windows server-client environment with resource allocation to desired Virtual LANs of network.
• Implementing NAT solution's on wan applications and configured Nexus 5000 series for implementation.
• Responsible for day to day management of Cisco Devices, Traffic management and monitoring.
• Worked on Cisco Routers, Active /Passive Hubs, Switches, Cisco PIX Firewall, Nortel VPN Concentrators TCP/IP, NAT and Checkpoint ESX/GSX firewall.

Environment: Cisco 3750/3550/3500/2960 switches and Cisco 3640/ 0/3845/3600/2800 routers, Cisco ASA5510, Checkpoint, Cisco Nexus7K/5K, 2248/3560/5020/6509 , VPN,RIP,EIGRP,BGP,OSPF

Network Consultant

Confidential, Edison NJ

Responsibilities:

• Performed network engineering, planning (WAN & LAN) & implementation, Studied single point failures & implemented WAN structure in such a way that there are no failures in network in case of any device or link failure.
• Configured LAN networks with Access layer switches such as Cisco 4510, 4948, 4507 switches.
• Setting up VLANS and configuring ISL trunk on Fast-Ethernet channel between Switches.
• Deployed a large-scale HSRP solution to improve the uptime of collocation customers, in the event a core router became unreachable.
• Implementing, Monitoring, Troubleshooting and Convergence in Frame-Mode MPLS inside the core.
• Configuring VLAN, Spanning tree, VSTP, SNMP on EX series switches
• Understand the JUNOS platform and worked with IOS upgrade of Juniper devices
• Implemented security policies using ACL, PIX firewall.
• Configured OSPF, BGP on Juniper Routers
• Configured routing policy for BGP. Switching related tasks included implementing VLANs and configuring ISL trunk and 802.1Q on Fast-Ethernet channel between switches
• Implemented Cisco IOS Firewall IDS using 2600 series router.
• Configuring RIP, OSPF and Static routing on JuniperM and MX series Routers
• Troubleshooting on network problems with Wire shark, identify problem and fix.
• Experience with configuring Nexus 2000Fabric Extender (FEX) which acts as a remote line card Redistribution of routing protocols and Frame-Relay configurations.
• Configuring and troubleshooting type of routing to route traffic flow per customer requirement as primary, backup/load balanced and load splitting.
• Performed the maintenance of Active Directory and replication scheme, DNS/DHCP services and time services; wrote step-by-step procedures for implementing upgrades.
• Dealt with creating VIP(virtual servers), pools, nodes and applying iRules for the virtual servers like cookie persistency, redirection of the URL
• Configured VLANs on a switch for inter-VLAN communication. Configured VLAN Trunking Protocol (VTP) on Core Switches. Configured various LAN switches such as CISCO CAT 2900, 3550, 4500, 6509 switches for STP, VTP Domain, VLAN, Trunking, Fast Ether Channel configuration.

Environment: Cisco routers (1600,3600,7300) and Cisco switches (6509, 3550, 4500,2900),Nexus(7K, 5K & 2K),Routing, Protocols(EIGRP, OSPF, BGP), Switching Protocols(VTP,STP,GLBP,HSRP), Cisco PIX(525, 515E), ASA(5540, 5510) firewall.

Network Engineer

Confidential

Responsibilities:

• Involved in the redistribution into OSPF on the core ASA firewall.
• Also prepared documentation for various VLANS and Voice sub networks and worked on Visio for the same.
• Installed and configured DNS and DHCP server.
• Involved in troubleshooting of DHCP and other IP conflict problems.
• Performed switching technology administration including VLANs, inter-VLAN routing, Trunking, STP, RSTP, port aggregation & link negotiation.
• Configuration of Access List ACL (STD, Ext, Named) to allow users all over the company to access different applications and blocking others.
• Configuring STP for switching loop prevention and VLANs for data and voice along with Configuring port security for users connecting to the switches.
• Involved in L2/L3 Switching Technology Administration including creating and managing VLANs, Port security, Trunking, STP, Inter-VLAN routing, LAN security.
• Working on Cisco 6509 and 4507 series switches for LAN requirements that include managing VLANs, Port Security and troubleshooting LAN issues.
• Configured and installed Cisco 2500, 3640, 7200, and 7940 Routers.
• Troubleshot network bandwidth performance, mismatched framing and line coding.
• Coordinated with LAN/WAN engineers the development and implements security policy.
• Monitored usage of network resources with Cisco works, and using sidewinder in PIX Firewall.
• Defined policies, NAT and anti-spoofing for internal, external networks as well as Internet gateways.
• Configured remote users to access corporate LAN with VPN connectivity.
• Configured and installed new IP addresses for new users by using IP Addressing and Subnetting Scheme.
• Interfaced with various vendors for company products.
• Configured Frame-Relay, ISDN, ATM, Protocols, & load balancing switches.
• Configured IPX/SPX, HDLC, PPP, TCP/IP, BGP, EIGRP, RIP, & HSRP.
• Configured TCP/IP addressing scheme to assigned IP blocks.
• Worked on a migration project which involved the removal of all static routes from core devices
• Worked on the redistribution of connected routes on all OSPF devices so that all connected subnets are advertised via OSPF.
• Worked on Network support, implementation related internal projects for establishing connectivity between the various field offices and data centers.
• Ensure Network, system and data availability and integrity through preventive maintenance and upgrade.
• Supporting EIGRP and BGP based PwC network by resolving level 2 &3 problems of internal teams & external customers of all locations.
• Involved in the removal of EIGRP from all devices and making OSPF the primary routing protocol.
• Involved in the modification and removal (wherever necessary) of BGP from the MPLS routers.

Environment: Cisco routers (7900, 3600, 2500), Cisco switches(4500,6500), Routing Protocols(EIGRP, RIP, BGP), Switching protocols(VTP,STP).

Jr. Network Engineer

Confidential

Responsibilities:

• Designed the IP addressing scheme using VLSM and configured IP addressing Performed activities such as initial user account creation, established LAN connectivity, file and resource sharing management, internet connectivity, FAX and email service setup
• Expanded LAN to accommodate 200 plus users. Coordinated installation and repair work. Diagnosed and corrected clients network related issues
• Installed and configured LAN/WAN as per organizational / client requirements, governed by communication protocols
• Performed tasks that include Configuring and constant administration of Static routing, Default Routing & dynamic Routing Protocols like RIP, OSPF & EIGRP.
• Worked on Cisco 2500, 2600, 2800 series routers and 1900, 2900 series switches
• Replaced outdated Cisco switches and routers in existing Data center and installed new Cisco switches and routers including migration of series router
• Implemented dedicated VLAN ID for all trunk ports, set user ports to non-trunking, and deployed port security when possible for user ports for layer 2 security
• Involved setting up the TFTP server for backing up the IOS images and configuration files of Cisco Routers and Switches and troubleshooting the file servers.
• Responsible for network evaluations, troubleshooting a variety of network problems, and implementing various software and hardware upgrades efficient performance.
• Troubleshoot Cisco hardware: Inspected devices, Read device LEDs, loose connections, cards, dirty devices, interior IOS upgrade, switch configuration usage of Visual Switch Manager, switch port configuration, port monitoring. Watch over Flooding Control/Network port.Infoview Technologies, Chennai, India