SUMMARY:

• Over 6+ years of experience in IP network design, network integration, deployment and troubleshooting.
• Extensive knowledge in configuring and troubleshooting Layer 3 Interior Gateway Routing protocols such as Link - State routing protocols (OSPF and IS-IS) and Distance Vector routing protocols (RIPv1, RIPv2 and EIGRP).
• Good knowledge in configuring and troubleshooting Exterior Gateway protocols such as BGPv4 including internal BGP (iBGP) and external BGP (eBGP).
• Extensive knowledge of WAN technologies such as T1, T3, DS3, OCx, SDH, SONET, LTE, Fiber and Frame relay.
• Hands on experience in configuring high end routers like GSR 12000 series, 7500 series and Catalyst Switches like 7600, 6500, 4500 series.
• Extensive experience in upgrade, backup and password recovery of Cisco IOS.
• Worked with VOIP/SIP on network and voice support.
• Experience in working with Cisco Nexus Switches like 5000 and 7000 series and Virtual PortChannel configuration.
• Knowledge and configuration of redundant router protocols like HSRP, VRRP and GLBP.
• Knowledge of IT/NMS Security, IpSec, IMS, EPC, SDH/ Sonet fiber optic transport networks, long distance transmission systems, WDM.
• Substantial knowledge, including the configuration, of Spanning Tree Protocol (STP), Per VLAN Spanning Tree (PVST), Rapid STP (RSTP) and Rapid per VLAN Spanning Tree (PVST+).
• Thorough experience in configuring Virtual Local Area Networks (VLAN) with IEEE 802.1Q, VLAN trunking protocol (VTP), shortest path bridging, Multiple VLAN Registration Protocol and VLAN Cross Connect (CC).
• Technologies handled were Cisco Routers/Catalyst Switches, HP switches, Sonicwall firewalls, Shoretel Routers/Switches, andArubaWAPS.
• Remove and replace AERONET WAPS with ArubaIAP225’s. ConfiguredArubaVirtual Controllers andwirelessaccess points and trouble shot connectivity issues through thewirelessnetwork.
• Experience in Checkpoint Firewalls and VPN, Checkpoint IDS-IPS,McAfee Antivirus Endpoint Protection Solution EPS.
• Advanced OSI model knowledge Advanced Layer 3 and Layer 4 packet analysis in-depth, end-to-end, Network troubleshooting and analysis.
• Experience in troubleshooting both connectivity issues and hardware problems on Cisco based networks.
• Worked on Palo Alto firewall and used panorama for centralized control of all the firewalls.
• Worked on Cisco Firewalls Cisco ASA 5500(5510/5540) Series and Checkpoint R75, 76 Firewalls and configured Palo Alto firewall.
• Working knowledge of network monitoring/management tools like Wireshark, TCP Dump, Cisco Prime, Solar winds.
• Experience with F5 Load balancers- LTM, GTM series like 6400, 6800, 5000 and 2000 for the corporate applications and their availability.
• Knowledge in implementing and configuring F5 Big-IP LTM-6400 load balancers.
• Worked in configuring VOIP device like IP Phones and designed call center using SIP protocol.
• In-depth knowledge and hands-on experience in Tier 2 ISP Routing Policies and Firewalls.
• Experience in testing Cisco routers and switches in lab scenarios and deploy on site for production.
• Good knowledge of IPv4 and IPv6 Addressing, Fixed Length and Variable Length Subnet Masking (VLSM), OSI and TCP/IP models.
• Experience in migration of IPv4 addresses to IPv6 addresses using mechanisms like Tunnel Broker, Transport Relay Translation (TRT), NAT64, DS-Lite and DNS64.
• Experience with administration, implementation and troubleshooting of Juniper SRX firewall and Checkpoint firewalls.
• Experience in installing and configuring NAT, DHCP server and DNS in large networks.
• Experience in configuration of LAN protocols such as Ethernet and Fiber Distributed Data Interface (FDDI) on Cisco Switches.
• Implemented traffic filters using standard and extended access-lists, distribute-lists and route maps.
• Provided support that included resolving day-to-day operational issues with tickets generated by a server.
• Experience in documenting and preparing the process related operational manuals.
• Wide exposure to LAN/WAN setup, installation, configuration and commissioning of network devices.
• Knowledgeable with commercial tools such as web security, email security, VPN & NAC, DNS, DHCP, and ISP/IDS
• Good understanding of SNMP, IP SLA and Network Monitoring with experience in tools like PRTG.
• Experience in troubleshooting a variety of problems. Streamlined and improved process to be quicker to market, ensured compliance and optimized operational efficiency. Identified opportunities for continued improvements of process to ensure maximum output.

TECHNICAL SKILLS:

Cisco Routers: Cisco ASR9k, GSR 12000, 7600, 7500, 7200 VXR, 3800, 37002800, 2600

Cisco Catalyst Switches: Catalyst 6500, 4000, 3550, 2900, Nexus 7010/5548/2248

IP Routing Protocols: BGP, OSPF, EIGRP, IGRP, RIP v1 & v2, IS-IS

MPLS: LDP, MPLS L3 and L2 VPN

Load Balancing: Cisco ACE 4700 series, F5 LTM, Netscaler

Firewalls: Cisco ASA 5500, Cisco PIX 500, checkpoint R60, checkpoint R65Juniper SRX 210/650

LAN Switching: STP, IEEE 802.1Q, VTP, VLAN & Inter-VLAN routing, QoS

WAN/core: ATM, Frame-Relay, ISDN, PPP, HDLC

Optical infrastructure: SONET OC3-OC192, SDH, POS, PDH

IP Telephony: SIP, H.323, RTP, Voice Gateways, CCM, QoS,UCCX

VoIP Devices: Cisco IP phones, Cisco 5500, 6500 series controller, Avaya30006000, 7200 series Controllers, Cisco WebEx,Jabber

Quality of service: CBWFQ, RED/WRED

Wireless Technology: Cisco AP, LWAP, Access Points, WCS

Ticketing software: ConnectWise, Remedy system

Management software: HP openview, Solar winds, PRTG Network Monitor

IPSEC/VPN Configuration: PIX to Router, Router to Router, PIX to VPN wildcard clientRouter to VPN wildcard client, PIX to PIX, fully meshed configurations

Cabling: CAT 5, CAT 5e, CAT 6, CAT 6a

Operating Systems: Windows Server/8/7/Vista/XP, NexusOS, Cisco IOS-XR, LinuxUNIX (Mac OS)Microsoft Office: Visio, Excel, PowerPoint

Scripting Languages: C,Python,MATLAB

PROFESSIONAL EXPERIENCE:

Confidential, Chicago, IL

Sr. Network Engineer

Responsibilities:

• Configured HSRP and VLAN trucking 802.1Q, VLAN Routing on Nexus 7k, 5k and Catalyst 6500 switches.
• Migrated Distribution switches from cisco 6509 to Nexus 7010
• Experience working with High performance data center switch like nexus 7000 series
• Experience working with Nexus 7010,7018, 5020, 2148, 2248 devices
• Involved in the activity of DATA-Center migration of regular Cisco catalyst switches with the new Nexus 2148, 2224T, 5548, 6018, 7010 using F3/M3 line-cards with 10GE & 40GE interfaces and Supervisor 2E.
• Involved in the troubleshooting aspects of complex network infrastructure using routing protocols like EIGRP, OSPF and BGP.
• As part of Data Center fabric remediation/refresh project, deployed Cisco Nexus switches and implemented features like FEX Links, VPC and VDC.
• Configured and deployed VPC between Nexus 7010 and Nexus 5596, 5548 switches along with FEX 2248.
• Experience with design and configuring Overlay Transport Virtualization (OTV) on Cisco NX-OS devices like Nexus 7000
• ConfiguredNexus 6509 switches and updated the iOS.
• Configured and managed Cisco Unified Contact Center (UCCX10.5) and Unity Connection (CUC 10.5).
• Configured policy-based and route-based firewall solutions on Juniper SRX/ ASA.
• Data center migrationof 6509's, nexus 5k, 3750 and nexus 2K switches.
• Developed shell scripts using python that run on switches.
• Evaluated existing voice network architecture,revolving around VoIP solutions, instituted standard configurations/processes.
• Resolved the errors in all the switches after migration.
• Worked on Python based automation test software for network testing (on Windows)
• Supporting F5 Load Balancers (LTM, GTM and ASM).
• Involved in design and implementation of Data Center Migration, worked on implementation strategies for the expansion of the MPLS VPN networks.
• ArubaWirelessAccess Point provisioning (AP205's; Air monitor/Spectrum analyzer & AP225's).
• Implemented a Cisco NAC solution including a Policy Server (ACS) using RADIUS and a Cisco NAC Appliance including Cisco NAC Manager and Cisco NACServer.
• Handled SRSTand implemented and configured the Gateways, Voice Gateways.
• Engineering, Provisioning, Installing, Configuring, Testing and Maintenance of Fiber Optic Sonet Add/DropRing Networks.
• Experience converting Cat OS to Cisco IOS on the Cisco 6500 switches.
• Installation using Cisco 7500, 8500, 5508 Wireless LAN controllers, Cisco Prime infrastructure equipment.
• Troubleshooted Cisco and Juniper routers, switches, firewall, and security network equipment
• Designed MPLS VPN and QoS for the architecture using Cisco multi-layer switches
• Installation and management of LAN, WAN, systems involving design of network layouts, configuration and maintenance, Commissioning Routers & Switches ensuring maximum uptime during site deployment to VOIP.
• Configuring H323, MGCP and SIP Voice gateways and End-to-end implementation of Unified communication infrastructure for multi-location.
• Used multiple network monitoring tool Solar Winds, Cisco Prime for supporting the existing core networkenvironment and Network edge devices.
• Experience with working on latest Cisco switches like Nexus 2000, 5000, 6000 and 7000 series switches while implementing advanced features like OTV and Fabric Path
• Troubleshooting large voice networks on a daily basis, where protocols such as H323, SIP.
• 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 center environment.
• Monitored network for optimum traffic distribution and load balancing using Solar winds.
• Maintained secure Internet access for end-users by installing and maintainingAruba centralized wireless architecture that provided single point for access control.
• Deployment and integration of Unified Communications including Cisco Jabbervia Cisco Expressway Gateways.
• Hands on experience installing Sup720 for Cisco 6509-E series and its Gigabit Ethernet port deployment in the core network
• Configuring IP, RIP, EIGRP, OSPF and BGP in routers.
• Configuring rules and maintaining Palo Alto firewalls and analysis of firewall logs using various tools.
• Experience in deploying EIGRP/BGP redistribution and the changing the metrics for the primary and backuppaths for the packet prioritization and EIGRP tuning.
• Implemented Big IP F5 LTM for all Local Load balancing and use GTM for load balancing across Data Centers.
• Experience on a mesh 6500 and 5500 series routes and switches to support the core trading system. Involved.

Environment: Juniper firewalls 5GT, 208, SSG 5, 140, 550, 550M, NSM, IDS/IPS, Nexus 2K, 5K and 7K 500/3750/3550/3500/2950 switches, Juniper (M320, T640),Juniper SRX, Load balancing,Palo Alto, Cisco 7200/3845/3600/2800 routers, Solar Winds, TACACS, EIGRP, RIP, OSPF, BGP, VPN& NAC, MPLS, Ether Channels.

Confidential, Chicago, IL

Sr. Network Engineer/ Security Engineer

Responsibilities:

• Involved in the activity of DATA-Center migration of regular Cisco catalyst switches with the new Nexus 2148, 2224T, 5548, 6018, 7010 using F3/M3 line-cards with 10GE & 40GE interfaces and Supervisor 2E.
• Involved in the troubleshooting aspects of complex network infrastructure using routing protocols like EIGRP, OSPF and BGP.
• Configured and deploying Cisco Catalyst 6506, 4948E, 4510 switches and Cisco 3660, 3845, and 7609 series routers.
• Applied ACLs for Internet access to the servers using Cisco 5550 ASA firewall and performed NAT.
• Designed and implemented DMZ for Web servers, Mail servers & FTP Servers using Cisco ASA5500 Firewalls.
• Good knowledge and hand on experience of implemented firewall policies on Cisco ASA.
• Performed Security operations in terms of pushing new policies and deploying new rules. Performing security troubleshooting in terms of checking ACLs and ACEs and traffic flow analysis using packet capture features.
• Performed migration from Legacy Catalyst 6509 with SUP-720, Catalyst 4507 with SUP-6 to Nexus 7k with SUP-2E as part of the data center refresh.
• Security Certificate requesting and loading forArubacontrollers.
• Utilize Cisco prime to monitor network and preform upgrades and mass configurations.
• Maintaining and troubleshooting F5 (BIG-IP) Load Balancers-basic iRules configuration.
• Experienced in working with Cisco NX-OS and IOS.
• Deployed VSS on Cisco Catalyst 6509 switches and provided post-deployment support for issues.
• As part of Data Center fabric remediation/refresh project, deployed Cisco Nexus switches and implemented features like FEX Links, VPC and VDC.
• Worked on Nexus platform 5K, 7K series) and deployed Fabric path and OTV
• Designed& administer public wireless using Cisco prime for network monitoring and configuration.
• Configured and deployed VPC between Nexus 7010 and Nexus 5596, 5548 switches along with FEX 2248.
• Supported in giving access the User machines and partners exterior to the network using IPsec VPN tunneling and SSL.
• Provided support alarms on Digital Signals (DS0, DS1, DS3) and other circuits in the Sonetdigital hierarchy.
• Dealt with the service providers in the case of WAN outages.
• Maintained firewall including manage multiple SSG5s, and Juniper SRX110 CE firewalls.
• Responsible for implementation and management of all telephony services including the Global rollout of VOIP Systems.
• Created new NetScaler policies to allow external access via workstations and mobile devices.
• Deployed a 2 node NetScaler HA cluster designed to resolve external Citrix Requests along with implementing NetScalersVPN capabilities.
• Responsible for simulating network operations with the usage of packet analyzer like Wire shark, and use to resolve tickets whenever there is an issue.
• Performed load balancing and application level redundancy by deploying F5 BIG-IP LTM 3900.
• Involved in the configuration and maintenance of IPsec Site-Site VPN.
• Had hands on experience in configuring and implementing Prefix-lists, Route-maps, Ether-channels.

Environment: HP Pro Curve 5400 series switches, Cisco Routers, Cisco Switches, Check Point Firewall, Palo Alto, F5 Load Balancers, Juniper SRX, Opsware, Cisco Wi-Fi technologies,Netscaler, Avaya 3000, 6000, 7200 series Controllers, Cisco CLI, Microsoft Lync, VOIP, SIP, RTP, RADIUS, TACACS+, OSPF, BGP, VPN, MPLS.

Confidential, Fairfax, VA

Sr. Network Engineer

Responsibilities:

• Performed network implementation that includes configuration of routing protocols, leased lines, ISDN lines, VLANs and IOS installations.
• Troubleshot the network issues onsite and remotely, depending on the severity of the issues.
• Deployed and decommissioned the VLANs on core ASR 9K, Nexus 7K, 5K and its downstream devices.
• Had hands-on experience with WAN (ATM/Frame Relay), Routers, Switches and IP addressing.
• Worked with layer 2 switching technology architecture. Implemented L2 and L3 switching functionality, which includes the use of VLANS, STP, VTP and their functions as they relate to networking infrastructure requirements including internal and external treatment, configuration and security.
• Supported core network consisting of Cisco 7200 series routers running multi area OSPF.
• Configured EIGRP and OSPF as interior gateway protocols with route filtering and route redistribution. Troubleshot complex LAN/WAN infrastructure that include routing protocols EIGRP, OSPF and BGP.
• Responsible for all aspects of TCP/IP functionality across multiple enterprise environments.
• Performed OSPF, BGP, DHCP Profile, HSRP, IPV6, Bundle Ethernet implementation on ASR 9K redundant pair.
• Configured and deployed BIG-IP LTM 6900 for providing application redundancy and load balancing.
• Configured Client VPN technologies including Cisco’s VPN client via IPSEC.
• Troubleshot issues and outages on Trunks and Router interfaces and firewalls extensively.
• Involved in operations and administration of WAN consisting Ethernet Handoffs, T1, DS3, and Optic Fiber Handoffs.
• Provided technical assistance for LAN/WAN management & troubleshooting and complex customer issues using Network monitoring tools such as Solar winds.
• Configured ASA 5500-X Series firewalls to provide highly secure and high performance connectivity between the site locations.
• Performed Network Address Translation on Cisco ASA 8.2 and 8.3
• Used DHCP to automatically assign reusable IP addresses to DHCP clients.
• Performed the ACL request changes for various clients by collecting source and destination information from them.
• Created MOPS (Method of procedures) and sought the approval of peers to perform configuration changes.

Environment: Cisco Routers, Cisco Switches, Routing protocols, HSRP, VRRP, IPSEC VPN, VPN, QOS,ASA firewall, Load balancer, MPLS, VLANS, VTP, RSTP, ACL, NAT, IDS/IPS, Monitoring tools(PRTG, HP OpenView), SIP, RTP, RADIUS, TACACS+, Cisco Wi-Fi technologies, Juniper SRX,ASR 9000, Catalyst 6500, CRS, Cisco ASR Firewall, IPV6, Cisco IP phones

Confidential, Warren, NJ

Network Engineer

Responsibilities:

• Configured HSRP between VLANs, configuring Ether Channels, Port Channel on 6500 catalyst switch.
• Performed data center migration in Access, Distribution and Core layers.
• Configured Routing protocols such as RIP, OSPF, EIGRP, MPLS, static routing and policy based routing.
• Configured and troubleshot link state routing protocols like OSPF in single area and multiple areas.
• Configured VLANs with 802.1q tagging. Configured Trunk groups, ether channels, and Spanning tree for creating Access/distribution and core layer switching architecture.
• Configured BPDU Guard, port-fast, uplink fast and other spanning tree features.
• Provided Technical Support and solutions for network problems.
• Implemented NAT solutions on WAN applications.
• Upgraded IOS, troubleshot network outages.
• Performed configuration and troubleshot EIGRP and BGP.
• Upgraded Cisco ASA 5510 firewalls using 6500/7600 catalyst modules for enhanced performance, security and reliability.
• Provided on-call support for installation and troubleshooting of the configuration issues
• Configured Standard, Extended, and Named Access Lists to allow users all over the company to access different applications and blocking others
• Planned and implemented Subnetting, VLSM to conserve IP addresses
• Configured STP for loop prevention and VTP for Inter-VLAN Routing
• Performed troubleshooting of connectivity problems using PING, and Trace route
• Provided Technical support for improvement, up gradation, and expansion of the existing network architecture.
• Done troubleshooting of TCP/IP problems and connectivity issues in multi-protocol Ethernet environment.
• IOS upgrade 1900, 2900, 3500 series Cisco Catalyst switches and 2500, 2600, 3600 series Cisco routers using TFTP.
• Migrated IPv4 addresses to IPv6 addresses using mechanisms like Tunnel Broker, Transport Relay Translation (TRT), NAT64, DS-Lite and DNS64.
• Installed and configured DHCP server.
• Involved in troubleshooting of DHCP and other IP conflict problems.
• Configured ACLs (Standard, Extended and Named) to allow users all over the company to access different applications and blocking others.
• Participated in on call support to troubleshoot the configuration and installation issues.
• Displayed excellent troubleshooting skills and customer centric approach.

Environment: Cisco 3750/3550/3500/2960 Switches and Cisco 3640/12000/ 7200/3845/3600/2800 routers, Cisco Nexus7K/5K, 2248/3560/5020/6509 , Cisco ASA5510, Checkpoint, Controllers 6000, 3600, 3400, 650, Juniper SRX, Microsoft Lync, MPLS, VOIP,SIP, Cisco Unified Video Conferencing, Unix commands, IPV6, Cisco IP phones,Cisco 5500, 6500 series controller, Avaya3000, 6000, 7200 series Controllers, Cisco IOS CLI.

Confidential

Network Engineer

Responsibilities:

• Performed Windows server 2003 and 2008 administration, desktop support and network maintenance.
• Managed 5000 user accounts and group policies for users belonging to various accounts such as Citibank using Active Directory server. Also managed Internet Information Services (IIS), Mail servers, File servers, DNS and DHCP servers.
• Troubleshot Lotus Notes and Exchange mailbox issues, software issues and network connectivity issues.
• Worked with Network Operations Center (NOC) by managing and monitoring LAN/WAN network services.
• Scheduled maintenance for routers/servers by running maintenance commands through SSH connections.
• Performed switching related tasks such as implementing VLANS, VTP, RSTP and Port security.
• Implemented security measures using ACL and configured NAT according to the connectivity requirement.
• Participated in design and implementation IPv4 subnetting in the office network.
• Provided 24/7 rotational on call supports for branch offices.
• Configured Routing protocols such as RIP, OSPF, EIGRP, static routing and policy based routing, infrastructure and configured the entire network Infrastructure devices including network printers.
• Won ‘Star Player Award’ for crucial contribution to ‘Butterfly Operation’ that restricted installation rights to all employees as they had installed licensed software without securing the license from the Client.

Environment: Cisco Routers, Cisco Switches, Routing protocols (OSPF, EIGRP), HSRP, VRRP, IPSEC VPN, SSL,VPN, Cisco CLI, QOS, ASA firewall, IP Phones, Microsoft Lync, VoIP, ACE load balancer, MPLS, VLAN, VTP, ACL, SIP, RSTP, NAT, FCAPS, RADIUS, TACACS+, Cisco Access Points, Juniper SRX.