SUMMARY

• Network Engineer wif over 8+ years of experience in the industry which includes expertise in the areas of routing and switching.
• Expert level noledge of troubleshooting, implementing, optimizing and testing of static anddynamic routing protocols such as EIGRP, OSPF, BGP ability to interpret and resolve complex routetable problems.
• Expert Level Knowledge about TCP/IP and OSI models.
• In - depthexpertiseintheanalysis,implementation,troubleshooting&documentationofLAN/WAN architecture and good experience on IPservices.
• In-depthnoledgeandhands-onexperienceonIPAddressing,Subnetting,VLSMandARP,reverse& proxy ARP, PingConcepts.
• Implementation traffic filters on Cisco routes using Standard, extended Accesslist.
• Experience wif different Network Management Tools and Sniffers like SNMP,NNM,Splunk, HPNA, Riverbedand Cisco worksto support 24 x 7 Network OperationCenter.
• Worked extensively in Implementing & Managing LAN, WLAN &WAN solutions fordifferent clientsetups.
• In-depthnoledgeandexperienceinWANtechnologiesincludingT1/T3,HDLC, Point to Point, ATM & FrameRelay and experience inQOS configurations for various sites.
• Hands on experience in upgrading NX-OS and configuring VPC, OTV, FEX, FABRIC PATHon Cisco Nexus 7000,5000 and 2000 switches.
• Experience wif implementing IPsec VPN, GETVPN, and DMVPN to branch sites.
• Worked on Cisco UCS 5100 series blade server chassis, Catalyst 2960, 3750, 4500, 6500 series switches and Cisco 2600, 2800, 3600, 3800, 7200, 7600series routers.
• Worked on Cisco Meraki wireless environment and managing the MR wireless access points and MS switches.
• ExperienceinPhysicalcabling,IPaddressingandSubnettingwifVLSMusingQIPconfiguringand supporting TCP/IP, DNS, installing and configuringproxies.
• AbilitytoInstall,Manage&TroubleshootLargeNetworks&SystemsAdministrationonWindows& Linux platforms in Development, Staging, Lab & ProductionEnvironments.
• Strong Experience in using various tools for management, analyzing, and troubleshooting, monitoring& process automation in Lab &Productionenvironment.
• Experience wif Riverbed Steelhead for WAN optimization and acceleration.
• Knowledgeofimplementingandtroubleshootingcomplexlayer2technologiessuchasVLANTrunks, VTP Ether channel, STP, RSTP and MST.
• Experience on configuring VLANs on a switch for inter-VLAN communication, VLAN Trunking Protocol (VTP) on Core Switches. Configured STP, VTP Domain, Trunking, Fast Ether Channel on various LAN switches such as CISCO CAT 2900, 3550, 4500, 6509.
• Hands on experience on Aruba wireless access points and Aruba wireless controllers.
• Experience in configuring HSRP and redistribution between routing protocols troubleshootingthem.
• Involved in troubleshooting network traffic and its diagnosis using tools like ping,traceroute, Wireshark, TCPdump and Linux operating systemservers.
• Worked on Nexus platform includes 7000, 6000, 5000 andFEX 2000 series and ASR 1006, 1009 series WAN routers.
• Staged Nexus devices for replacement and upgraded NX-OS several environments.
• Performed network engineering, planning (WAN & LAN) & implementation, Studied single point failures & implemented WAN structure in such a way that their are no failures in network in case of any device or link failure.
• Worked extensively in Configuring, Monitoring and Troubleshooting Cisco's ASA 5500 security appliance, IPS/IDS, Failover DMZ zoning & configuring VLANs/routing/NATing wif the firewalls as perthe design.
• Troubleshooting DNS/DHCP issues wifin the LAN network and worked on risk assessments wif threat analysis.
• Implementation of HSRP, VRRP and GLBP for Default GatewayRedundancy.
• Excellent communication skills to interact wif team members and support personnel and also canact as a mentor to less experiencedpersonnel.

TECHNICAL SKILLS

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

Routing Protocols: RIP, IGRP, EIGRP, IS-IS, OSPF, BGP,NHRP, 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, IEEE 802.1q, MPLS, ISL and dot1q, SMTP, VLAN, Inter-VLANRouting, LWAP, and VOIP.

WAN Technologies: Frame Relay, PPP, HDLC, (E1/T1/E3T3), DMVPN, IPsec VPN, MPLS VPN, SONETRiverbed Steelhead WAN Optimization

Scripting Languages: Python

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

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

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

Load Balancers: Cisco CSM, F5 Networks (Big-IP) LTM 8900, ASM, APM

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,ELB, CoudWatch

PROFESSIONAL EXPERIENCE

Sr Network Operation Engineer

Confidential, 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 wif issues and escalation.
• Handled Incident tickets related to the issues in the Network operation along wif 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, 7600series routers.
• Worked on Cisco Meraki wireless environment and managing the wireless access points.
• Experience in Cisco Call Manager, CUCM, CCME wif IP Phones on SIP,SCCP, H.323,RTP and NTP
• Configured various Cisco 2900, 3560, 3750,4500, 6509 switches and Cisco 2800, 3800 routers as part of the implementation plan routers
• Configured inside ACL, outside ACL, inside, outside interfaces.
• Worked wif ISP providers for T1/T3 circuit issues and escalating wif vendor related issues.
• Monitoring Aruba AP135 wireless access points and connection wif Aruba 3600 wireless controllers.
• Experience in migration of VLANS & Configured VLANs wif 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, 3925series routers, ISSU upgrade on nexus 6000 and 7000 series,catalyst 6500,4500, 3560switches and ASR 1000 series routers.
• Configured GETVPN and troubleshooting connectivity issues wif Key server and group members.
• Worked wif ISP to implement QOS configurations on the WAN edge connections.
• Configured DMVPN and troubleshooting NHRP network connectivity between NHS and NHC
• Worked wif engineering team to resolve tickets and troubleshoot L3/L2 problems efficiently.
• Worked on network monitoring and analysis tools like, Solar winds, Splunk, NNMi, Riverbed and Wireshark captures on OpNetfor network performance and application monitoring.
• Monitorednetworkstatus vianetworkmonitoring software (Wire Shark,SolarwindsNetwork Monitoring)
• 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.

Environment: Cisco ASR1000series,catalyst 6500,4500,3750 QOS, Policy-maps, Class-maps, VLAN’s, NTP, STP, RSTP, PVSTP, VTP, HSRP, Ether Channel, BGP,OSPF,VPN,EIGRP, MPLS,PPP, HDLC. SNMP, ACL, TACACS+, DNS, DHCP, Nexus 1000v, 7K,6k,5K,2K, Aruba Wireless, SD-WAN, Cisco Meraki, Splunk, Lantronix, Baytech, Cyclade, DMVPN, GETVPN.

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 wif VPN and Configuration of Catalyst switches.
• Configuration 7609, 7606 wif OSPF and catalyst 6505, 4500, 3550 switches wif various VLAN.
• Create and testCisco router and switching operations using OSPF routing protocol, ASA Firewalls, and MPLS switching for stable VPNs worked wif 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 wif 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 wifin the Network/ security infrastructure.
• Worked on Juniper EX3300, EX2300 and QFX5100 series switches and upgraded JUNO-OS
• Upgrading IOS, troubleshootingnetworkoutages and worked wif 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, 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 autantication wif 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 wif 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 wif manipulation of attributes such as metric, origin and local Preference.
• Cisco Secure Access Control Server (ACS) for Windows to autanticate 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 wif 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 3640/12000 /7200/3845/3600/2800 routers, Cisco ASA5510, Checkpoint, Cisco Nexus7K/5K, 2248/3560/5020/6509, VPN,RIP,EIGRP,BGP,OSPF

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 wif 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 wif LAN/WAN engineers the development and implements security policy.
• Monitored usage of network resources wif 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 wif VPN connectivity.
• Configured and installed new IP addresses for new users by using IP Addressing and Subnetting Scheme.
• Interfaced wif 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, 2900,3560,3750series switches
• Replaced outdated Cisco switches and routers in existing Data center and installed new Cisco switches and routers including migration of 2500 to 2600 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.

Environment: Cisco routers (2800, 2600, 2500), Cisco switches 3560, 3750(Routing Protocols (EIGRP, RIP, BGP), Switching protocols (VTP, STP).