SUMMARY

• Cisco certified Network Engineer Professional with 8+ years of experience in Network design, implementation, troubleshooting, and managing of large scale enterprise network systems. Provided level 3 & 2 support for network operation center’s team.
• Experienced on working with network equipment such as Cisco routers, switches, firewalls and F5 load balancers.
• Provided installation and support of network process components including servers, workstations, and software.
• Leads investigation of new technologies for deployment and integration of production enterprise environment.
• Experienced on working with Cisco Catalyst series 2960, 3560, 3650, 3750, 3850, 4500, 4900, 6500, and 6800.
• Experienced working with layer - 3 routers and layer-2 switches. Besides these also experienced with Cisco Nexus series switches 2k Fabric extender, 3k. 5k, 6k and 7k series.
• Experienced working on VPC, VDC in Nexus and VSS on Catalyst 6500.
• Proficient in configuring, and troubleshooting various routing protocols (BGP, OSPF, EIGRP, RIP, and Static routing).
• Experienced in management of route summarization, default routes, redistribution, sub netting, and VLSM.
• Experienced in Check point, Palo Alto and Cisco ASA firewall administration across different corporate networks.
• Proficient working with F5 LTM, GTM series 6400, 6800, 8800 on corporate infrastructure.
• Experienced in switching protocols such as VTP, STP, RTP, PVST, and MSTP. Creating VLANs, Ether Channel, and implemented inter VLAN on SVIs and VLAN Trunking using 802.1q standard.
• Experienced in DNS, DHCP, SMTP, FTP, HTTPS, and Web security architecture.
• Experienced in Network planning and implementation of WAN technologies including E3, E1, T3, T1, ISDN, HDLC, PPP, Frame relay, ATM and MPLS VPN.
• Experienced in configuring Security firewalls NAT, PAT, and IPSEC.
• Experienced in Network Security TACACS+, NTP, TFTP, and SNMP.
• Excellent in Communication, Analytical, and problem solving skills.
• Good team player with excellent interpersonal skills.

TECHNICAL SKILLS

Cisco Routers: 2500, 2600, 2900, 3600, 3800, 7200, and 7600

Cisco L2 & L3 Switches: 2900, 3560, 3750, 4500, 4900, and 6500

Nexus Switches: 7018, 6601, 5596, 5548, 2232, 2248

LAN Technologies: Ethernet, Fast Ethernet, Gigabit Ethernet, VLAN, Inter VLAN, VTP, STP, RSTP

WAN Technologies: Frame relay, PPP, HDLC, E1/ T1/ E3/T3

Network Security: Cisco ASA (5512/5550/5585 ), ACL, IPSEC

Firewall: Checkpoint Firewall, Palo Alto, Cisco ASA

Network Management: Wire shark, Net flow Analyzer, Cisco works, SNMP, SYSLOG

Security Server Protocols: TACAS+, LDAP, Radius

Load Balancer: Cisco CSM, F5 networks (Big-IP)

PROFESSIONAL EXPERIENCE

Confidential, Addison, IL

Sr. Network Engineer

Responsibilities:

• I was part of Data Center design and build team. As part of data center refresh project, I performed migration from Cat 6513 Switches with Sup 720 and WS-X6148A-45AF Line cards of version Cisco IOS Release 12.2(33)SXI2 to Nexus 7009 and 7018 Switches with Nexus 7000 Supervisor 2E, N7K-F312FQ-25 F3,N7K-M206FQ-23L M2 line cards of version NX-OS Release 5.2(1), Nexus 5548UP Switch and Nexus 2232TM-E Switches.
• Implemented VPC, VDC on Nexus Switches and also configured FEX
• Worked with the data center planning groups, assisting with network capacity and high availability requirements.
• Responsible for entire LAN and WAN maintenance and troubleshooting of the company network. Involved in the Team of Data Center Level 2 support to perform duties like deployment and troubleshooting of Cisco Routers Switches, Load balancer and Firewalls according to the organization requirements.
• Performed network administration tasks such as creation and management of VLANS, Port security, Trunking, RPVST+, Inter-VLAN routing, and LAN security
• Acquired excellent troubleshooting skills on 7613 Cisco Router, which include working on ticketing system and change management system to provide, troubleshoot support.
• Configured and maintained (2921, 3845, 7204, and 6509) and configured OSPF & BGP Protocols.
• Configured and resolved various OSPF multi-area environments, used OSPF as IGP with route filtering and route-redistribution, implemented Stubs/Totally stub areas, implemented features like route summarization and SPF throttling.
• Used BGP for verifying various traffic policies and influencing outgoing, incoming traffic using BGP attributes such as Local Pref., AS Path, Med, Weights.
• Configured ASA 5540 to ensure high-end security on the network with ACLs and Firewall.
• Involved in providing access to user machines and partners outside our network by SSL and IPSEC VPN tunneling.
• Configured and deployed BIG-IP LTM-6900 for providing application redundancy and load balancing.
• Configured Site to Site IPsec VPN tunnels to peer with different clients and each of client having different specifications of Phase 1 and Phase 2 policies using Cisco ASA 5500 series firewalls.
• Configure Virtual Servers, Nodes, and load balancing Pools in F5 Big-IP LTM.
• Configured and deployed BIG-IP LTM 6900 for providing application redundancy and load balancing.
• Successfully installed Palo Alto PA-3060 firewall to protect data centers.
• Implemented Firewall and IDS/IPS solutions to mitigate client risks and analyzed security issues.
• Assisted in backing up, restoring and upgrading the Router and Switch IOS.
• Upgrading IOS - Upgrading hardware and installing new devices, Tuning (Configuration), make standardization for the topology.
• Helped thenetworkteam to install new switches and routers and configure the IOS according to the requirement which included VLAN, OSPF, Sub netting, EIGRP, IGP, BGP, VTP, STP, wireless access points.
• Assisted corporate infrastructure for VOIPnetworkmanagement and troubleshoot.
• Creation of change tickets and implement according to the customer requirements.

Environment: Cisco 6513, 5548 Catalyst Switches, 7018/7009/7000/2232 Nexus Switches, Cisco 2921, 3845, 6509, 7204, 7613 routers, Cisco ASA 5540/5500, Palo Alto PA-3060, IDS/IPS, VPC, VDC, LAN/WAN, Routing protocols EIGRP, IGP, BGP, OSPF, Switching STP, VTP, VLANs,, Firewalls, IPsec VPN, F5 BIG-IP LTM-6900, and VOIP.

Confidential, AubunHills, MI

Network Engineer

Responsibilities:

• Involved in complete LAN, WAN development including IP address planning, designing, installation, configuration, testing, maintenance etc.
• Installation and Configuration of Cisco Catalyst switches 6k, 3k series and Implementation of EIGRP, OSPF, and BGP routing protocols on Cisco routers.
• Configuration, upgradation and deployment of Nexus 7010, 5596 and 2248 switches.
• Experienced in configuring Nexus 2k fabric extender which behaves as remote line card for Nexus 5k.
• Configured LAN switches Cisco 4500, 6509 and also configured Access layer switches Cisco 4507, and 4948 for VLAN, and Fast ether channel.
• Configured LAN protocols such as STP, RSTP, VTP, VLAN, LACP, and PAGP.
• Implemented Cisco layer-3 switches 3750, and 4500 on multi VLAN with Inter- VLAN routing, HSRP, ISL trunk and ether channel.
• Implemented IPsec VPN for different corporate lines to secure the communication for outside traffic.
• Experienced with Checkpoint VPN rules over Cisco ASA VPN. Which filters traffic by inspecting the application layer.
• Configuration and managing of network & security devices which includes Firewalls, F5 load balancer, and DNS.
• Experienced in Data, VOPI network management and troubleshoot.
• Provided network support for Check point VPN firewalls and F5 LTM load balancer.
• Experienced in configuring and troubleshooting WAN technologies like MPLS, Frame relay and ISDN.
• Experienced in monitoring network traffic with Qradar and CiscoIPS event viewer tools.
• Worked on installation, upgrades, and maintenance of LAN/WAN, network security, and firewalls.
• Expertise in implementing gateway redundancy protocols like HSRP, VRRP and GLBP to provide load balancing over multiple routers by using a single virtual IP.
• Configured Cisco IOS backup, uploading & downloading IOS using TFTP server.
• Real time monitoring and network management using Cisco Works LMS.
• Provided technical support on hardware and software related issues to remote production sites.
• Involved in operations and administration of WAN consisting Ethernet Handoffs, T1, DS3, and Optic Fiber Handoffs.
• Used internal network monitoring tools to ensure network connectivity and Protocol analysis tools to assess the network issues causing service disruption
• Experience working with migration from 6500 series devices to 4500 Series switches in Campus deployments at Core, Distribution and Access Layers.
• Working with Cisco Nexus 2248 Fabric Extender and Nexus 5500 series to provide a Flexible Access Solution for datacenter access architecture.

Environment: Cisco 6509, 6500, 4948, 4507, 4500, 3750, Switches, 7010/5596/5500/2248 Nexus Switches, Cisco 2921, 3845, 6509 routers, Cisco ASA, Checkpoint VPN, DNS, LAN/WAN MPLS and ISDN, Routing protocols EIGRP, IGP, BGP, OSPF, Switching STP, VTP, RSTP, LACP, PAGP, VLANs, Firewalls, IPsec VPN, F5 BIG-IP LTM-6900, and VOIP.

Confidential, SFO, CA

Network Engineer

Responsibilities:

• Responsible for installing and supporting hardware and applications on PC.
• Deploy Cisco routers and switches and administer network-monitoring services.
• Implementing security policies using ACL, Firewalls, IPsec, and VPN.
• Installation, configuration and administration of Windows Servers, Active Directory, DNS, DHCP, Linux OS under various LAN and WAN environments.
• Migration of existing IPSEC VPN tunnels from pre-shared key to Certificate.
• Troubleshooting complex LAN/WAN infrastructure using routing protocols EIGRP, OSPF& BGP.
• Lab testing and validation prior to implementation of Nexus 7K, 5K & 2K connecting to blade servers.
• Setting up Cisco router, switches and coordinating with the System/Network administrator during implementation.
• Ensure thorough network documentation, including maintaining each account’s network matrix, backup configurations and network diagram.
• Monitored bandwidth and network activity by analyzing all the information to ensure efficient and effective network operation.
• Deployed and managed Cisco IP phones and Cisco ATA devices at corporate and remote locations.
• Troubleshoot call routing issues using debugs and traces to identify and correct issues.
• Performed cluster wide upgrades and security patches.
• Worked with vendors to resolve voice/data issues with WAN, MPLS, PSTN issues.
• Conducted risk assessments for new customers to ensure compliance to rules and regulations.
• Configuring and resolving various OSPF issues in an OSPF multi area environment,
• Implemented, configured BGP WAN routing, converting OSPF routes to BGP (OSPF in local routing).
• 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.
• Worked on commissioning and decommissioning of the MPLS circuits for various field offices & POPs.
• IP Allocation & Maintenance for users and other needs throughout company.
• Involved in IOS and CAT OS upgrade procedures and Pre/Post checks for customer production upgrades.
• Ability to analyze, configure and troubleshoot networks.

Environment: Cisco 4507, 3750, Switches, 7010/5596/5500/2248 Nexus Switches, Cisco 2921, 3845 routers, Cisco ASA, Checkpoint VPN, DNS, DHCP, LAN/WAN MPLS and ISDN, Routing protocols BGP, OSPF, Switching STP, VTP, RSTP, PVST, RPVST, LACP, PAGP, VLANs, Firewalls, IPsec VPN, MPLS, PSTN and VOIP.

Confidential

Jr. Network Engineer

Responsibilities:

• Designed and implemented IP addressing, sub netting, summarization and route distribution on different devices in the network.
• Primarily responsible in designing and maintaining the resources of the complete network.
• Configuration, installation, troubleshooting, and maintaining of all network devices.
• Implementation of LAN protocols like Ethernet, VLANs, VTP and STP.
• Responsible for transferring tickets to L2 engineers for problem resolution, and for active support of team member for daily operations.
• Understanding the business impact and sensitize the reported or proactively observed fault/issue and carry out proper much needed escalation within the management.
• Created network diagrams using Visio.
• Monitored and troubles hooted LAN and WAN network traffic and performance of the all the devices on the network.
• Worked on Remedy ticketing tool for maintenance and tracking of logs.
• Configured and maintained Microsoft Exchange server.
• Performed update and installation of Operating systems, software, antivirus and server OS on client machines for users.

Environment: IP addressing, Sub netting, Summarization, LAN/WAN Switching STP, VTP, VLANs, Visio, and Microsoft Exchange server.