SUMMARY

• Over 10 years of experience in Networking, including hands - on experience in providing network support, installation and analysis for broad range of LAN/WAN/MAN communication systems.
• Proficient in Cisco IOS for configuration & troubleshooting of routing protocols: MP-BGP, OSPF, LDP, EIGRP, RIP, MPLS and BGP v4.
• Installed & Configured: Cisco Routers: 3600, 2600, 2500, Catalyst Switches: 6500, 5500, 3550, and 2900s and Nexus 7K, 5K and 2K switches.
• Excellent knowledge in Routing, Switching, Firewall and Gateway technologies, system design, wireless design, data network design, capacity management and network growth.
• Hands on experience in installing, configuring, maintaining and troubleshooting Cisco Switches, Cisco Routers, and Cisco Nexus Switches.
• Involved in troubleshooting of DNS, DHCP and other IP conflict problems.
• Responsible for Check Point and Cisco ASA firewall administration across global networks.
• Experience in working with Cisco Nexus Switches and Virtual Port Channel configuration.
• Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Ether-channel, STP, RSTP and MST.
• Configuration and troubleshooting of Cisco 2500, 2600, 3000, 6500, 7500, 7200 Series routers and Cisco ASR 9K /1K.
• Hands on experience in implementation and deploying BIG-IP F5 LTM load balancers for load balancing and network traffic management for business applications.
• Worked on F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability.
• Implementation of HSRP, VRRP for Default Gateway Redundancy.
• Experience in testing cisco routers and switches in laboratory and deploy them on site production.
• Expert level knowledge on Confidential model and TCP/IP protocol suite.
• Worked on Network Topologies and Configurations, Routers, Frame Relay, Token Ring, ATM, Bridges, Switches, Hubs and Repeaters.
• Strong knowledge of TACACS+, RADIUS implementation in Access Control Network.
• Experience in Designing and assisting in deploying enterprise wide Network Security and High Availability Solutions for ASA.
• Knowledge on Data Center Design with Cisco Nexus in troubleshooting of DNS, DHCP and other IP conflict problems.
• Worked extensively in Configuring, Monitoring and Troubleshooting Cisco's ASA 5500/PIX security appliance, Failover DMZ zoning & configuring VLANs/Routing/NATing with the firewalls as per design.
• Worked on Extensively on Cisco Firewalls, Cisco PIX (506E/515E/525/) & ASA 5500(5510/5540) Series.
• Responsible for Checkpoint and Cisco ASA firewall administration across our global networks.
• Strong knowledge of Cisco and Juniper software (IOS/XR and JunOS) and hardware.
• Installation, configuration, and management of WAN optimizer, Riverbed Steelhead.
• Experience with hardware load balancer administration and support, preferably with F5 and Cisco ACE load balancers.
• Experience with convert Checkpoint VPN rules over to the Cisco ASA solution. Migration with both Checkpoint and Cisco ASA VPN experience.
• Experience in layer-3 Routing and layer-2 Switching.
• Worked on CRS to provide communication between router and Service Providers with secure routing.
• Experience with VOIP and QOS implements and support. Exposure to different Wireless LAN standards 802.11a/b/g/d/h/i/e/n.
• Experience in installing and configuring DNS, DHCP server.
• Experience in layer-3 Routing and layer-2 Switching. Dealt with Nexus models like 7K, 5K, 2Kseries, Cisco router models like 7200, 3800, 3600, 2800, 2600, 2500, 1800 series and Cisco catalyst 6500, 4500, 3750, 3500, 2900 series switches.
• Experience with Putty, Exceed, Secure CRT, GNS 3 and Cisco Packet Tracer.
• Adept in preparing Technical Documentation and presentations using Microsoft VISIO/Office.
• Ability to Install, Manage & Troubleshoot Large Networks & Systems Administration on Windows & Linux platforms in Development, Lab & Production Environments.
• Excellent customer management/resolution, problem solving, debugging skills and capable of quickly learning, effectively analyzes results and implement and delivering solutions as an individual and as part of a team.

TECHNICAL SKILLS

Network Configuration: Advanced switch/router configuration (Cisco IOS access list, Route redistribution/propagation).

Routing Protocols: IGRP, EIGRP, OSPF, BGPv4, MP-BGP

WAN Protocols: HDLC, PPP, MLPPP

Circuit switched WAN: T1/E1 - T3/E3/OCX (Channelized, Fractional & full).

Packet Switched WAN: ATM, FRAME RELAY, MPLS, VPNs

Security Technologies: Cisco FWSM/PIX/ASDM, Nokia Checkpoint NG, Juniper SRX

Cisco Routers: Cisco GSR 12416, 12418, Cisco 7200vxr, Cisco 3640, Cisco 3600

Cisco Switches: Cisco 2960, Cisco 3560, Cisco 3750, Cisco 6500 series

Juniper EX Switches: EX8200, EX4500, EX4200, EX3200, EX2500, EX2200 Series

Juniper Routers: E, J, M and T- Series

Cisco Nexus Switches: Cisco 7010, Cisco 7018, Cisco 5020, Cisco 2148, Cisco 2248

Layer 3 Switching: CEF, MLS, Ether Channel

Layer 2 technology: VLAN, VTP, VMPS, ISL, dot1q, DTP, Spanning-tree, PVST

Physical interfaces: Fast Ethernet, Gigabit Ethernet, Serial, HSSI, Sonet (POS)

Redundancy and management: HSRP, RPR, NSF/NSR

QOS: CBWFQ, LLQ, WRED, Policing/Shaping.

Switches: Catalyst 6500, MSFC, MSFC2, 7600, 3700, 3500

LAN Technologies: Ethernet, Fast Ethernet, Gigabit Ethernet, & 10 Gigabit Ethernet, Port- channel, VLANS, VTP, STP, RSTP, 802.1Q.

WAN Technologies: Frame Relay, ISDN, ATM, MPLS, leased lines & exposure to PPP, HDLC, and CSU/DSU.

Operating Systems: Microsoft XP/Vista/7, UNIX, Linux (Redhat, OpenSuse, Fedora) Windows Servers 2003/2008, Windows MS-Office

PROFESSIONAL EXPERIENCE

Confidential, Chicago, IL

Network Engineer

Responsibilities:

• Installing, Configuring and troubleshooting Cisco Routers (ASR1002X, 1006, 3945, 3845, 2800, 3600) and Switches to perform functions at the Access, Distribution, and Core layers.
• Experience with configuring routing protocols such as OSPF and Policy based Routing
• Implemented the Juniper switches, Routers and Firewall and also had experience in troubleshooting them.
• Experience with configuring Load Balancing methods in F5 LTM and also configured the virtual server.
• On Catalyst 6500 switches configured VLAN Routing
• Experience with configuring Hot Standby Routing Protocol HSRP and VLAN Trunking Protocol
• Involved in writing irule syntax using TCL language and also in rule management such as loading rules
• By configuring VLAN's, optimized the performance of WAN network.
• Installed Firewalls with both LAN and WAN and also configured them accordingly.
• Configured Cisco 7200, 7600, 3800 and 3600 routers.
• Performed Configuration on ASR 9K Pairs includes HSRP, Bundle Ethernet Config, Assigning DHCP profiles.
• Link state protocols such as OSPF are configured and also had experience in troubleshooting them.
• Involved in the removal of EIGRP from all devices and making OSPF the primary routing protocol.
• Deployed the Cisco 3500 Access Points using Cisco Wireless controllers 5500 and 2500 and WCS System.
• Experience working in environments with diverge network systems and components like Nexus 5000, Nexus 1000V, Nexus 7000.
• Performed load balancing and application level redundancy by deploying F5 BIG-IP LTM 3900.
• Virtual Port Channel configuration on the Cisco Nexus 5000 series.
• Virtual Device Context configuration on the Cisco Nexus 7000 series.
• Configuring Virtual Chassis for Juniper switches EX-4200, Firewalls SRX-210
• Used Spanning Tree Protocol and also configured BPDU Guard, Port-Fast, and Up-Link Fast.
• Experience with installing and configuring Spanning Tree Protocol, Trunking (dot1q and ISL) and Ether channel on Campus Network Design Architecture.
• Configuring, testing, and troubleshooting routing and switching issues and related protocols associated with packet networks including MPLS and traffic engineering (QoS).
• Performed installation and configuration Cisco Secure Access Control Server (ACS) configuration for AAA (RADIUS) authentication.
• Extensive Knowledge on the implementation of Cisco ASA 5500 series and CheckPoint R 75 firewalls.
• Implementing Citrix NetScaler 10 for Networking and Traffic Optimization (CCA) (BETA), Citrix License CTX48
• Experience with Monitoring wireless networks and performing site surveys.
• Cisco ASA Firewall troubleshooting and policy change requests for new IP segments that either come on line or that may have been altered during various planned network changes on the network.
• Extensive Knowledge on the implementation of Cisco ASA 5500 series and checkpoint R 75 firewalls.
• Experience in monitoring services and responsible for designing and building monitoring solutions and maintaining all monitoring technologies like Solarwinds.
• Extensively worked on Protocols like IP Telephony (H.323, SIP), RADIUS, AAA (Authentication Authorization and Accounting), and DIAMETER, GSM (SMPP, CIMD, and UCP).
• Derived a solid end-to-end QOS design and configuration to control traffic flow across the different layers of the network Participated and interacted in multiple customers VOIP cutover with different Varieties of ISP and work with Cisco TAC to troubleshoot complex VOIP/Data issues.
• Experience with upgrading troubleshooting network outages and also upgrading IOS.
• Implemented NAT’s solutions on Cisco Routers and configured IP access filter policies.
• Experience with implementing and maintaining network monitoring systems such as Cisco works and HP Open view and have experience with developing complex network design documentation and presentations using VISIO.

Confidential, Farmingdale, NY

Network Engineer

Responsibilities:

• Installation and Configuration of Composite Network models consists of Cisco7600, 7200, 3800 series routers and ASR 9k, GSR 12K routers and Cisco 2950, 3500, 5000, 6500 Series switches.
• Configured routing protocol OSPF, EIGRP, BGP with Access Control lists implemented as per Network Design Document and followed the change process as per IT policy It also includes the configuration of port channel between core switches and server distribution switches
• Key contributions include troubleshooting of complex LAN/WAN infrastructure that include routing protocols EIGRP, OSPF & BGP.
• Experience configuring Virtual Device Context Virtual Port Channel in Nexus 7010
• Responsible for day to day management of Cisco Devices, Traffic management and monitoring.
• Experience in HSRP standby troubleshooting & Experience in configuring & upgrading of Cisco IOS
• Installation, Configuration and troubleshooting Cisco switches and Firewall on multi-mode context based environments
• Implemented 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.
• Provided application level redundancy and availability by deploying F5 load balancers LTM.
• Upgrading system images on Nexus 5K and 7K multi-layers’ switches using kick start and FTP server.
• Configured Multicasting by using protocols such as PIM and IGMP.
• Designed Core System architecture for Voice and Data networks
• Deployment and Management of Cisco call Manager 4.x, 6.x, 7.x and hands on experience on call admission control
• Responsible for turning up BGP peering and customer sessions, as well as debugging BGP routing problems.
• Designing and Implementation of (LAN) VLANs, VTP, Spanning Tree (STP), Trunking (dot1q and ISL) and Ether channel.
• Hands on Experience with Cisco Wireless Controllers 5500’s and 2500’s and coming to access points, worked on 3700’s, 3500’s and 1142 access points.
• Daily communications with local onsite support contacts for assistance with troubleshooting Telepresence LAN circuits and endpoint hardware.
• Installed and configured PIX 525 and ASA 5505 in customer locations. In addition to that, PIX firewall configured for the Guest access.
• Good Knowledge in using IPS/IDS devices.
• Involved in the redistribution into OSPF on the core ASA firewall.
• 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.
• Involved in designing L2VPN services and VPN-IPSEC authentication & encryption system.
• Configured and installed VOIP devices and IP Phones such as 7971G-Ge, 7975G IP phones of 7900 series.
• Provided technical support and customer training to users on the network.
• Designed and Installed VOIPinfrastructure for clients including various sip servers (Freeswitch, asterisk, Opensip, VoIP switch, Porta) as well as installation of VOIP gateways overseas for the purpose of VOIPtermination.
• Tuned BGP internal and external peers with manipulation of attributes such as metric, origin and local Preference.
• Configuring and implementing F5 BIG-IP, LTM, and GTM load balancers to maintain global and local traffic.
• Worked as Telecommunications technician with broad experience in both business and consumer lines
• Configuring, Installing and troubleshooting on Check Point Devices.
• Configured VLANs with 802.1q tagging. Configured Trunk groups, ether channels, and Spanning tree for creating Access/distribution and core layer switching architecture.
• Good knowledge on Intrusion Detection and Intrusion Prevention System.
• Involved in migration of Cisco Pix firewall to Cisco ASA.
• Knowledge on multiplex techniques such as DWDM.
• Implemented and upgraded very large Cisco Wireless Network(50,000 nodes) utilizing WISM, WLC 5500, WLC 4400, AP 1140, AP 1260, AP 3500, Cisco3300 Context Aware appliance, ACS and NCS (Cisco Prime Appliance).
• 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.
• Implemented Hot Standby Router Protocol (HSRP) by tuning parameters like preemption.
• Worked on FTP, HTTP, DNS, DHCP servers in windows server-client environment with resource allocation to desired Virtual LANs of network.
• Working on shell and tcl scripting for automation testing of client roaming with WPA2, Dot1x, EAPFAST with PEAP, LEAP authentication techniques with client burst joining and clients' access point flapping scenarios.
• Used Tcpdump to analyze packets on the TCP/IP and also provides brief display of packet.

Confidential, Chicago, IL

Network Engineer

Responsibilities:

• Configuring routing protocols OSPF, EIGRP, RIP, MPBGP, LDP and BGPV4.
• Implemented DHCP, DNS, IPAM configuration on the servers to allocate, resolute the ip addresses from Subnet.
• Configuring HSRP between VLANs, Configuring Ether-Channels, Port Channel on 6500 catalyst
• Switches Replace branch hardware with new 2851 routers and 2960 switches.
• Developed deployment solutions for network technologies including Optical VoIP, VPN, SAN switching and routing.
• Configured and installed VOIP devices and IP Phones such as 7940, 7942, and 7960.
• Efficient in maintaining Avaya PBX products such as media servers, gateways and its related circuit packs such as IPSI, CLAN, MEDPRO, VAL and DS1 Manage data backup and restore
• Configuring and troubleshooting Juniper Netscreen Firewalls using NSM.
• Experience in working with cisco Nexus 5000 series switches for data center.
• Conversions to BGP WAN routing, which converts WAN routing from OSPF to BGP (OSPF is used for local routing only) that involves new wan links.
• Configuring various advanced features (Profiles, monitors, iRules, Redundancy, SSL Termination, Persistence, SNATs, HA on F5 BIGIP appliances SSL termination and initiation, Persistence, Digital Certificates, Executed various migration/upgrade projects across F5 and hands on with F5 BIGIP LTMs/EM.
• Configuring, Installing and troubleshooting on Check Point Devices.
• Configured various BGP attributes such as Local Preference, MED, Extended Communities, Route-Reflector clusters, Route-maps and route policy implementation.
• 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.
• Converting CatOS to Cisco IOS Config Conversion on distribution layer switches.
• Configuring VLAN’s, VTP’s, enabling trunks between switches.
• Worked as a customer support Engineer involved in WI-FI set-up implementation.
• Configured various Router interfaces like ATM interface, T3 & Channelized T1 interfaces.
• Configuring and troubleshooting CISCO catalyst 6509, 7609, 7613 with Supervisor cards, Cisco 3640, Cisco GSR 12416, 21418 (with PRP and RPR processors).
• Worked on Extensively on Cisco Firewalls, Cisco PIX (506E/515E/525/) & ASA 5500(5510/5540) Series.
• Experience with design and implementation of Data center migration at NBC Universal
• Data center migration was involved in Access, Distribution and Core layers.
• Wrote IOS and CAT OS upgrade procedures and Pre/Post checks for customer production upgrades.
• Strong Knowledge in working with F5 Load Balancers and their Implementation in various Networks.
• Created MOPS and get approval from peers to perform configuration add/ remove changes.
• Excellent Troubleshooting Skills and Customer Centric approach.
• Responsible for Installing and troubleshoot VMware.

Confidential

Network Engineer

Responsibilities:

• Responsible for the configuration of Cisco Routers (7000, 5300, 4000, 2500, 3000, 2600) using RIP, IGRP, OSPF, EIGRP, BGP
• Implemented Cisco IOS Firewall IDS using 2600 series router
• Configured and installed multi-protocol (IP, IPX) multi-interface Cisco routers
• Managed office network with Cisco devices with network devices including 2500 and 3600 series routers and 3500, 2900, 1900 series switches
• Analyzed and resolved a high percentage of initial customer contact in the areas of PC/LAN.
• Dealt with customer problems to management and support groups utilizing standard escalation model.
• Extensive experience in configuring and implementing OSPF and BGP.
• Supported core network consisting of Cisco 7200 series routers running multi area OSPF.
• Configured EIGRP and OSPF as interior gateway protocol with route filtering and route redistribution, installed and maintained Cisco 3600, 2600 and 7200 backbone routes with HSRP
• Implemented stub/Totally stub areas and various OSPF features like route-summarization and SPF throttling.
• Hands-on experience with WAN technologies like T1/T3, DS3, STM1 and STM4 circuit types
• Implemented Cisco Secure Access Control Server (ACS 3.0) for TACACS+/RADIUS
• Knowledge with redistribution of routing protocols and Frame-Relay configuration
• Handled Network Migration from RIP to OSPF.
• Implementation of TCP/IP and related Services-DHCP/ DNS/ WINS.
• Configured, maintained and troubleshot routing protocols such as OSPF, EIGRP and BGP.
• Designed IP Telephony solutions for 200 users using Cisco Call manager 4.x and Unity 4.x. Demonstrated teamwork by working with others on the design implementation of VoIP projects.
• Design and implement a Cisco wireless solution for different hospital sites to accommodate data and VOIP.
• Engaged in office moves, helped in identifying network requirements of new building, installed new networking hardware, and coordinated with vendors for cabling/wiring
• Performed troubleshooting, while maintaining trouble ticket tracking, following both internal/external routes.
• Assisted with escalation procedures and customer notifications.
• Configured Cisco Routers for OSPF, IGRP, RIPv2, EIGRP, Static and default route.
• Upgraded Cisco Routers, Switches and Firewall (PIX) IOS using TFTP
• Acted as Tier 3 support for connectivity, failures, configuration, implementation, and troubleshooting.
• Provided project management for data center cabling, documented all network drawings using Visio
• Design, test, and implement global Next Generation MPLS network (150 sites) using Cisco 3800, 2800, 2600, and 1721 routers using BGP and EIGRP protocols.
• Implementing traffic policy changes with Cisco PIX Firewall appliance switch WAP configuration and installations.