SUMMARY

• Having 10+ years of experience in Networking and Security in providing network support, installation and analysis for a broad range of LAN / WAN/MAN communication systems.
• Hands on experience in Cisco IOS/IOS - XR/NX-OS, Juniper JUNOS for configuration & troubleshooting of routing protocols: MP-BGP, OSPF, LDP, EIGRP, BGP v4, MPLS, NAT, VLAN, STP, VTP, HSRP & GLBP.
• Experience with designing, deploying and troubleshooting LAN, WAN, Frame-Relay, and Ether-channel.
• Experience with F5 load balancers - LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability.
• Experience in Configuring and implementing VLAN, VTP, LAN switching, STP and 802.x authentication in access layer switches.
• Switching tasks include VTP, ISL/802.1q, IPSec and GRE Tunneling, VLANs, Ether Channel, Trunking, Port Security, STP and RSTP.
• Design and configuring of OSPF, BGP on Juniper Routers (MX960, MX480) and SRX Firewalls(SRX240, SRX550).
• Experience securing and managing remote access using various VPN technologies like IPSec, SSL, and GRE.
• Working knowledge of network monitoring/management tools like Wireshark, TCPDump, Cisco Prime, Net Flow, PRGT, Solar Winds.
• Experience in Designing and assisting in deploying enterprise wide Network Security and High Availability Solutions for ASA.
• Worked extensively in Configuring, Monitoring and Troubleshooting Cisco's ASA 5500/PIX security appliance, Failover DMZ zoning & configuring VLANs/routing/NAT with the firewalls as per the design.
• Expertise in maintenance of layer2 switching tasks which advocate VLAN, VTP, STP, RSTP, PVST, RPVST, configuring of ether channel with LACP and PAGP along with troubleshooting of inter-VLAN routing.
• Deployment and maintenance of various routing protocols such as RIP v1/2, EIGRP, OSPF and BGP.
• Thorough understanding of VPN technologies like IPSec, GRE tunneling, MPLS for remote access security.
• Experience deploying BIG-IP F5LTM Load Balancers for load balancing and traffic management of business application.
• Worked on F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability.
• Experience in managing and migration of large scale enterprise networks, extensive knowledge in developing test plans, procedures and testing various LAN/WAN products and protocols.
• Excellent customer management/resolution, problem solving and debugging skills with good verbal/written communications and presentation skills.
• Effective team player with an aptitude to learn and ability to prioritize, organize and accomplish multiple tasks, both as part of a team and independently.
• Experience in designing MPLS VPN and QoS for architecture using Cisco multi-layer switches.
• Configuring BGP/OSPF routing policies and designs, worked on implementation strategies for the expansion of the MPLS VPN networks.
• Extensive knowledge of deploying & troubleshooting TCP/IP, Implementing IPv6, Translation from IPv4 to IPv6, Multilayer Switching, UDP, Ethernet, Voice & Data Integration techniques.
• Extensive knowledge in developing test plans, procedures, and testing Various LAN/WAN Products and Protocols.
• Strong interpersonal, organizational communication, customer service & presentation skills.
• Performed professional level documentation using Visio diagrams.

TECHNICAL SKILLS

Routing Protocols: RIP, EIGRP, OSPF, BGP Cisco Routers Cisco Routers Series 1700, 1800, 2600, 3600, 3800, 7200Cisco Switches Cisco Catalyst Switch 2900, 3500, 3700, 4000, 5000, 6500

Cisco Wireless: Cisco Access Point series 350, 1200, Cisco Wireless Bridge 1130

Packet Capturing: Wire shark Sniffer tool

Nexus: VDC, vPC, vPC+,vRF’s NX-OS ISSU.

VSS: Knowledge of Cisco's Virtual Switching System Technology

Call Agent: Cisco Unified Communication Manager 4.3, 5.1, 6.1

Digital Gateway: Cisco 2851, Cisco 3845, Communication Media Module (CMM) Gatekeeper Cisco 2851, Cisco 3845

IP Phone: Cisco 7910, 7912, 7940, 7960, Cisco IP Communicator

IP Conference: Cisco IP conference station

PROFESSIONAL EXPERIENCE

Confidential, Irving TX

Sr. Network Engineer

Responsibilities:

• Design and Implemented IOS, Nexus 9K/7K/ & Catalyst 6500/4900/3750- X, 1000V and Juniper EX6200, MX480, QFX10000 in a Complex DC Core/ Aggregation/ Access layer on a 10G backbone in Production and Data Canter Architecture.
• Implementing and managing traffic engineering on top of an existing Multiprotocol Label switching (MPLS) network using Frame Relay and Open Shortest Path First (OSPF).
• Dealt with F5 migration of 3DNS to Global traffic managers (GTM) of BIG 8900 series to GTM 6800 series
• Deployed BIG IP Enterprise manager to cluster all the F5 LTM, GTM, ASA devices for easier management and common configurations
• Data center Planning and Architecture by Maintaining Active Directories.
• Involved in migration of F5 Local traffic managers of LTM 5100 series to LTM 6800 series for higher capacity of data process and loadbalancing the web traffic within the data center
• Provide Layer 3 and Layer 4 support regarding DNS, DHCP and Load Balancing.
• Installation and maintaining AAA servers.
• Documenting and Approving the RFC on a daily basis for the changes scheduled.
• Plan and Prepare scripts for every site to be upgraded.
• Continuous tests during Pre and Post migration, through the extended ping and maximum load test.
• Worked on change management documentation of Network infrastructure design using Microsoft Visio.
• Run the Cisco command scripts backing up the existing configuration to TFTP server and prepare audit logs for the management.
• Run scripts to implement, upgrade and test the services.
• Clean up all legacy devices and insure all systems in the environment have been cleaned up.
• Implementation of HSRP, DHCP, DNS, FTP, TFTP, MRTG.
• Designed, developed, maintained and supported wired and wireless networks.
• Configured L3 protocols (IP, BGP, OSPF, EIGRP, IGRP, RIP, ISIS), redistribution, summarization, Filtration (using distribute list, route map, prefix list, access list).
• Implemented network security using PIX Firewall, VPN with IPSec and GRE Tunneling.
• Implement the firewall rules using Netscreen manager (NSM), Infoblox for Security.
• Gathering details from customers and providing best security infrastructure solutions with F5 load balancers, Check Point/Netscreen firewalls and Blue Coat proxies

Environment: Cisco 2600, 6500 series routers, Microsoft Windows Server, UNIX, PIX Firewalls, NetInfo, Infoman, Virtual change and Putty

Confidential, Plano TX

Sr.Network Engineer

Responsibilities:

• Managing large Global Data Centre Network Operations across geographies.
• Designed and Implemented Nexus 9K/7K/5K & Catalyst 6500/4900/3750- X in a complex DC Core/Aggregation/Access layer on a 10G backbone in Production and Data Center.
• Implementing and managing traffic engineering on top of an existing Multiprotocol Label Switching (MPLS) network using Frame Relay and Open Shortest Path First (OSPF).
• Troubleshooting the TCP/IP networks for connectivity, outages and slow network issues and recommended appropriate and cost-effective solutions for the congestion.
• Worked on Layer 2 protocols such as STP, VTP, STP, RSTP, PVSTP+, and MST.
• Worked on other VLAN troubleshooting issues, configured switches from scratch, and deployed them.
• Configured Cisco Routers for BGP, OSPF, EIGRP, Static and default route in a VPN environment using MPLS.
• Performed security audits of perimeter routers, identifying missing ACL’s.
• Troubleshoot network issues (TCP/IP, HTTP, SSH, DNS) to internal and external customers.
• Built site-to-site IPsec VPNs over Frame-relay & MPLS circuits on various models of Cisco routers.
• Configured and maintained Cisco Nexus 2k, 5k, 7k, and 9k switch platforms.
• Efficiently utilized Cisco Nexus 7K, 5K in managing and deploying data center switch upgrade to a 10GB infrastructure, resulting to a new virtual port channel technology.
• Working with Nexus OS, IOS, CATOS and Nexus 7K, 5K & 2K Switches.
• Involved in migration of Frame-relay connections to MPLS based technology with the extranet.
• Configured MPLS &IPsec VPNs and QoS on PAETEC backbone (PE) routers.
• Analyzed key metrics to measure network product effectiveness.
• High level of shell scripting and Perl scripting expertise to support the day-to-day operations.
• Configure Citrix NetScaler 10.1 for Extranet and Intranet functionality.
• Create Citrix Design for StoreFront 2.1 NetScaler 10 and XenDesktop 7.
• Migrated legacy F5 LTM and GTM appliance to newer version appliances.
• Design and deployed F5 LTM and GTM load balancer infrastructure per business needs from the ground up approach
• Responsible for setting up and managing Enterprise wide area network for the whole company.
• Experience in installing and configuring of Juniper MX5, MX80, MX250, MX 960 and EX4200.
• Worked on troubleshooting issues like Asymmetric routing through stateful Firewalls.
• Helped in implementing MPLS network and set up connectivity for various business units using MPLS Layer 3 VPN’S and VPLS.
• Experience in implementing TACACS migrations from old to new cisco ACS.
• Worked on circuit (pt-2-pt, MPLS L3VPN, VPLS, Internet) activations with service providers.
• Worked on cisco 3945 router as WAN router with OSPF, BGP with multiple VRFs. VRF-lite setup on 4500 series routers.

Environment: Cisco 7200/3845/3600/2800, OSPF, BGP, VPN, Fluke and Sniffer, Palo Alto Cisco 6509/ 3750/3550/3500/2950 switches, Checkpoint firewalls (SPLAT).

Confidential, Kansas City, MO

Sr.Network Engineer III

Responsibilities:

• Worked on upgrading LTM from 9.x to 10.x based on the End of line process.
• BIP-IP F5 Upgrade.
• Hands on experience on the LTM products like 6800 with 10.x and 3600 with 4.x TMOS versions.
• Dealt with redundant pair issues during the deployment of 6800 LTM Box.
• Deployed the iRules using TCL for the Enterprise Intranet work for the VLAN based applications and their load balancing between datacenters.
• Involved in writing the configuration script from 4.x version to 10.x version and troubleshooting issues.
• Worked on building the LTM boxes with initial setup configurations like Trunks, VLAN, static and floating IP allocation.
• Worked on assigning the SSL certificates to the websites and updating them on the expiry basis.
• Used tools like HTTP watch and TCP DUMP for troubleshooting the packets on the internal routing.
• Dealt with cookie persistence issues related to client request from the nodes to the pools.

Environment: EIGRP, RIP, CSM, SUP720, Ether Channels, Cisco 7200/3845.

Confidential, Parsippany, NJ

Sr.Network Engineer

Responsibilities:

• Worked with layer 4 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.
• 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.
• Involved in Implementation and Configuration (Profiles, I Rules) of F5 Big-IP C-4400 load balancers
• Configured ASA 5500-X Series firewalls to provide highly secure and high performance connectivity between the site locations.
• Configuring Big-IP F5 LTMs (virtual servers, pools, SNATs, health monitors, iRules) for managing the traffic and tuning the load on the network servers.
• Managing and troubleshooting of Juniper M320 routers including installation, upgrade, configuration and network management.
• Worked on Juniper SRX 5800 firewalls to create policies using J-Web User Interface.
• Managing firewall rules for SRX firewall for both Zone and Global policy.
• 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.
• Troubleshoot the BIG-F5 1600 LTM through constant contact with the vendor.
• Created MOPS (Method of procedures) and sought the approval of peers to perform configuration changes.
• Involved in Testing and development of test cases for IWAN.
• Supported all WAN/LAN hardware used including updates to routers, switches and routing protocols BGP, OSPF used within the Alliance Bernstein network.
• Hands on experience in configuring Cisco Nexus 2232, 2248, 5548, 6001 and 7018(Sup 2E) and worked on nexus protocols VPC, VRF, VDC and FEX Links.
• Create and test Cisco router and switching operations using OSPF routing protocol, ASA Firewalls, and MPLS switching for stable VPNs.

Environment: Cisco Routers, Cisco Switches, Nexus 7k/5k/2k Routing protocols, F5, Load Balancer HSRP, VRRP, IPSEC VPN, VPN, QOS, bluecoat, ASA firewall, Load balancer, IWAN, Power BI, Nexus 9K, IGMP V1/V2/V3

Confidential, Irving TX

Sr.Network Engineer

Responsibilities:

• Configured VSS between two Cat6509 switches in new Datacenter and also for other customer infrastructure.
• Configured Switch Stack for 3750 switches for new Datacenter and multiple other customer infrastructures.
• Creation of VIP maps and assigning pool members on F5 LB.
• Configure L3 protocols (IP, BGP, OSPF, EIGRP, IGRP, RIP, ISIS, HSRP), redistribution, summarization, Filtration (using distribute list, route map, prefix list, access list).
• Implementation and provisioning of new VPN customers in Cisco IP/MPLS-VPN Network using different routing protocols (e.g. MP-BGP, OSPF, Static, and others, which are required).
• Planned and implemented the moves of multiple customers from old datacenter to latest technology datacenter.
• Worked on multiple migration projects like replacing End of Life (EOL) devices with Nexus 7K/5K.
• Deployment of New devices (Cisco, Nexus, Juniper routers/ F5, and Netscaler) based on customer requirements.
• Troubleshooting Cisco/Nexus/Juniper/NetScaler/F5 hardware related issues.
• Deployed LTM'S and GTM's F5 deployments for application acceleration.
• Experience onSSL Offloading on F5 for Application security.
• Designing Standard Operating procedures (SOP) for various deployments and getting them approved in the GNS Change Advisory Board (GNS CAB).
• Configured and monitored Firewall logging, DMZ’s and related security policies.
• Configured Object Grouping, Protocol Handling and Code up gradation on ASA Firewalls.
• Using PBR with Route Maps for route manipulation/filtering. Troubleshooting routing issues like suboptimal routing and asymmetric routing.
• Worked on BGP configuration for providing redundant internet connectivity using BGP attributes and prefix-lists.
• Assisted in the upgrading of the Cisco Unity Call Manager from v6 to v8.2 as part of plan for future growth.
• Implemented a second Cisco Unity Call Manager in another city on the WAN to act as fail-over for the corporate phone system.
• Integrated Cisco Unity Server with corporate Exchange Server to provide voice mail to email.
• Performed daily add, moves and changes to both the Cisco Call Manager and Cisco Unity Servers.
• Designed and implemented call fail-over via analog ports on the Cisco Routers for remote sites.
• Assisted in the upgrade of the Cisco IPICS server to facilitate inter-mine site communications and permits interface with outside analog and wireless communications during an emergency.
• Provided end-user support for all applications running over the WAN.
• Implemented and used SDM to configure Cisco IOS security features and network connection.
• Extensively worked on implementation of Firewall ACL’s, designing perimeter security policy, allowing access to specified services, enabling IDS/IPS signatures in Firewall and fine-tuning of TCP and UDP.

Environment: Cisco catalyst switches 6500, 3750, 4000, and 5000, Cisco routers 7200, 3845, 2600, 2800, STP, VLAN, VTP, OSPF, EIGRP, BGP, Windows 2000/2003/ 2008.

Confidential, Monroe, LA

Sr. Cisco Administrator

Responsibilities:

• Configuration and Maintenance of ASA 5550, ASA 5520, ASA 5510, PIX 535, PIX 515E, FWSM Firewalls and Cisco IDS 4250.
• Configured Site-to-Site and Remote Site VPNs using Cisco routers to Cisco routers, Pix Firewall to Pix Firewall, Cisco router to Pix Firewall.
• Dealt with Cisco ACE Load balancer.
• Providing L2/L3 Support on switching and routing issues by effectively using the tools - Ping plotter, MRTG, and Wireshark.
• Configuring and managing Routing protocols like EIGRP, OSPF, BGP and resolving LAN problems.
• Performing IOS up gradations activities periodically on Cisco Routers/Switches and Riverbed device.
• Monitoring networkdevice health checks (using tools - WUG, HPOV, and NNM) and escalating the related issues to onsite team.
• Managing escalations of Vendors (Cisco, Riverbed, Service providers) for any major issue (Severity 1 & 2) or any downtime.
• Configured VDC,VPC, and Fex configurations in Datacenter environment.
• Preparing and submitting field technical complaints, RCA/RCCA, analysis and Availability reports.
• Resolving the Network related issues using ticketing system (Cadre, HPSM) in accordance with SLA.
• Configuration of ACLs in Cisco 5540 series ASA firewall for Internet Access requests for servers in LAN and DMZ and also for special user requests as authorized by management.
• Installed and configured Cisco Pix firewalls 515 E and 525 Series.
• Upgrade and backups of Cisco IOS to TFTP server.
• Support of state network firewalls and end-user Virtual Private Network (VPN
• Implemented Failover on ASA and PIX firewalls.
• Expertise in VPN configuration, routing, NAT, access-list, security contexts in ASA firewalls.
• Site to site VPN implementation on ASA Firewalls
• Firewall log monitoring using Cisco MARS.
• Administration of Cisco Secure Access Control Server 3.3. (Cisco secure ACS
• Designed and implemented corporate network windows infrastructure of Cisco routers and switches.
• Assisted in the implementation of the Cisco IPICS server and Cisco Call Manager Express as part of our Miner Communications system.
• Designed for and implemented a Cisco Unity Call Manager v4 with Cisco Unity System for use at all WAN sites.
• Assisted in the upgrading of the CCUM from v4 to v6.
• ASA software upgrade on Failover setup.
• Network devices configuration Backup and IOS update.

Environment: Cisco catalyst switches 6500, 3750, 4000, and 5000, Cisco routers 7200, 3845, 2600, 2800. Wireless access point 350, 1242. STP, HP Open View, E1, T1, Routing protocols OSPF, EIGRP, BGP.

Confidential

Network Administrator

Responsibilities:

• Designed and implemented Nationwide IP backbone network over Microwave links, Cisco routers, firewalls Designed new enterprise MPLS VPNs, as needed for policy and security reasons.
• Worked with Network Administrator in the installation and configuration of ASA firewall.
• Installed and configured DHCP server.
• Involved in troubleshooting of DHCP and other IP conflict problems.
• Planned and designed network addressing scheme with IP Subnetting.
• Time to time upgrade network connectivity between branch office and regional office with multiple link paths and routers running HSRP, EIGRP in unequal cost load balancing to build resilient network.
• Implemented Catalyst/ASA Firewall Service Module for various LAN’s.
• Configured ACL to allow only authorized users to access the servers.
• Participated in on call support in troubleshooting the configuration and installation issues.
• Installation, Maintenance, Troubleshooting Local and Wide Areas Network (ISDN, Frame relay, NAT, DHCP, TCP/IP.
• Provided Technical support in terms of upgrading, improving and expanding the network at multiple branch office locations.
• Installed & configured LAN & WAN using Cisco 1800 series Routers and 1900 series switches.
• Team work - On field New Installation, repair work, configured equipment, Installed wired (Coaxial cable through building terrace, window
• Monitored all equipment using Net QoS, Solar Winds.
• Configured various wireless access points (WAP) for the organization network.
• Designed and implemented an IP addressing scheme with subnets for different departments.
• Implemented and monitored the network using network sniffing and scanning tool as Wireshark.
• Worked on Replication between various domain controllers in Active Directory.
• Provided access services to ISPs using leased line modems and wireless links
• Configured RAD ASM leased line modems and Cisco wireless links.
• Helped in preparing equipment specs for procurement.

Environment: Cisco SDM, MPLS, VPN, DHCP, Cisco ACS, NetQoS, VLAN, Switching, SNMP, Cisco 2800, PIX Firewall.

Confidential

Network Admin

Responsibilities:

• Migration of customer network (CPEs)& Manage network activities.
• Generating CPE Configurations of Cisco Routers & Switches including Base Configurations.
• Dealing with Prepare & Build CPE Configurations, Amend Orders and Cease Orders.
• Testing individual customer requirements. Field request management by managing jobs in agreed time frames.
• Contact with Field engineers, Order Managers and Customers whenever required.
• Involved in network management including LAN/WAN troubleshooting and complicated configuration.
• Configured Routing protocols such as OSPF, BGP, static routing and policy based routing.
• Team member of Configuration of Cisco router with VPN and Configuration of Catalyst switches.
• Create and test Cisco router and switching operations using OSPF routing protocol, ASA Firewalls for stable VPNs.
• Configuration and troubleshooting link state protocols like OSPF in single area and multiple areas.
• Redesign of Internet connectivity infrastructure for meeting bandwidth requirements.
• Configured HSRP and VLAN trucking 802.1Q, VLAN Routing on Catalyst 6500 switches.
• Optimized performance of the WAN network consisting 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.
• Providing Technical Support and solutions for Network Problems.
• Planned, tested and evaluated various equipments, systems, IOSs and procedures for use within the Network / security infrastructure.
• Hand-on experience in developing scripts using Perl scripting language.
• Experience in designing, managing, and implementing complex IPCC and Cisco ICM/UC systems.
• Worked on Cisco Routers, Active /Passive Hubs, Switches, Cisco PIX Firewall, VPN Concentrators TCP/IP, NAT and Checkpoint ESX/GSX firewall.

Environment: Cisco Routers, Cisco Switches, NMS, Log Me in, Ms Visio, VLAN Maintenance on L3 Switches

Confidential

Jr. Cisco Admin

Responsibilities:

• Performed network documentation and created disaster recovery plan.
• Setup Cisco Entercept IDS and Cisco Works for Windows for network monitoring.
• Oversaw migration of WAN links to new service provider, designed full mesh WAN, set up TFTP server to backup, and restored configuration and IOS image files for the PIX, Cisco routers, and Catalyst switches.
• Analyzed expanding network, ran fiber, and implemented wireless communication.
• Designed configuration and layout of WAN to include IPT Internet facing VPNs and wireless subnet.
• Migrated network from full mesh frame relay to Point-Point T1 on larger sites, and implemented IPsec VPN on smaller sites.
• Administered multiple PIX firewalls throughout WAN to ensure LAN integrity from external threats.
• Monitored bandwidth and network activity by analyzing information provided by MRTG to ensure both efficient and effective network operation.
• Configured and supported multiple remote site installations.

Environment: Cisco Routers, Cisco Switches MRTG Graphs, Cisco Entercept IDS, IPSEC VPN, Cisco 2800, PIX Firewall, Bandwidth aggregation, Remote Management.