SUMMARY

• Cisco Certified Network Engineer with 10+ years of experience in the industry, which includes expertise in the areas of Routing, and Switching and ASA ( CISCO firewall) .
• Expert level knowledge of troubleshooting, implementing, optimizing and testing of static and dynamic routing protocols such as EIGRP, OSPF, BGP, MPLS,VPN, VRF lite ability to interpret and resolve complex route table problems
• Implementation traffic filters on Cisco routes using Standard, extended Access list
• Expert Level Knowledge about TCP/IP and OSI models
• Expert level knowledge of layer 2, layer 2.5, layer 3, layer 4
• In - depth expertise in the analysis, implementation, troubleshooting & documentation of LAN/WAN architecture and good experience on IP services
• 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
• Strong hands on experience in installing, troubleshooting, configuring of Cisco 7200, 3800, 3600, 3400, 2800, 2600, 2500 and 1800 series Routers, Cisco Catalyst 6500, 4500, 3750, 2950 and 3500XL series switches
• In-depth knowledge and hands-on experience on IP Addressing, Sub netting, VLSM and ARP, ARP, Ping Concepts, NAT, PAT, IPSEC VPN, DHCP
• Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP Ether channel, STP, MST, PVRST
• Experience in configuring HSRP and redistribution between routing protocols troubleshooting them
• Implementation of HSRP, VRRP and GLBP for Default Gateway Redundancy
• Implementing IP SLA and Track objects to monitor network traffic.
• Experience in configuring F5 BIG IP.
• Good understanding of OTV Cisco configuration.
• Good knowledge of CISCO ISE, ACS
• Expertise level of knowledge about Wireshark, Solarwind
• Good Knowledge of MS word, MS powerpoint, MS Excel
• Expert level of knowledge to Generate Report using SSRS.
• Excellent qualities such as Teamwork, Negotiation, Analysis and Communication
• Routers/switches: Routers (3900,2900,1900,800), Cisco catalyst (6500,5500,4500,3000,3100)
• Connectivity and hardware: fast Ethernet, WAN, LAN, TCP/IP,, CDP, ACL, Network Address Translation(NAT), Port Address Translation(PAT), OSPF virtual links, RIP, RIPv2, OSPF, EIGRP, BGP, TCP, UDP, static routing, stub routing, VLAN trunking, multi-area OSPF, NBMA, VLAN, VRP, HSRP, STP, ether channel, BPDU, Port fast, GLBP, VRRP, DHCP.
• VPN, Port security, MAC Address filtering
• Implementing VLAN trunking protocol to reduce administrative overhead. Enable secure sharing of VLAN information to prevent the introduction of rogue devices from affecting the VLAN database, shutdown unused switchboards following layer 2 security best practices
• Creating and managing local VLANs based on department function and configure ports with static VLAN assignment, static 802.1Q trunks and dynamic ISL trunking using PAgP for layer 2 forwarding. Utilizing VLAN spanning-tree in Cisco switches. Configuring edge ports for fast transitioning into the forwarding state to fix workstation start up connectivity delays, modifying spanning-tree parameters for manual root bridge assignment. Implementing ether-channels between each switch using PAgP for negotiation; modify ether-channel load balancing method.
• Implementing WAN links between sites using frame-relay point-to-point and multipoint connections to establish connectivity between each of the four sites as required. Establish frame-relay point-to-point connections three of the sites creating a full mesh. Implement hub and speak network between three of the sites with the main office as the hub for redundant connections.
• Implementing EIGRP routing from point-to-point . Configure EIGRP unequal-cost load balancing to also use the lower capacity multi-point links when routing packets.
• Prevent neighbor adjacencies from being formed as well as the sending and receiving of routing updates on unnecessary interfaces. Implement EIGRP MD5 message authentication between sites to prevent unauthorized insertion of routes into the domain. Implement manual EIGRP route summarization to reduce routing protocol demand on CPU resources, memory and band width used to maintain the routing table.
• Implement OSPF routing with multiple areas for networks between sites. Implement totally stubby areas to lower the system resource utilization of routing devices for the network. Implement NSSA area to allow injection of external routes into the area and propagation into the OSPF domain.

PROFESSIONAL EXPERIENCE

Confidential, Santa Clara, CA

Sr Network Engineer

Responsibilities:

• Responsible for Crossroads rollout LAN/WAN problem determination and diagnosis, provide project leadership (onsite, offsite)
• Participating in the design and planning aspects of the network infrastructure that is installed in the new building and testing of the internal network infrastructure in the new building, and troubleshooting and remediating any issues
• Configuration and installation of LAN switches and cabling all uplink and user network connections
• Working with Networking team IT staff to review current VLAN configuration, IP routing and firewall access control for existing networks, and applying the necessary network and security access rules to the installed equipment
• Worked with network services like DNS, DHCP, IP4, IPSec, VPN etc
• Deployed Cisco Catalyst 6500, 4500, 4000, 3750, 3850, 3560 (Layer 2 through 7)
• Configured Multiprotocol Label Switching (MPLS) VPN with Routing Information Protocol (RIP) on the customer’s stage
• Worked and performed troubleshooting, implementing, optimizing and testing of static and dynamic routing protocols such as EIGRP, OSPF, and BGP. Ability to interpret and resolve complex route table problems
• Configuration of static NAT, dynamic NAT and dynamic NAT overloading
• Back up a Cisco IOS to a TFTP server and Upgraded and restored a Cisco IOS from TFTP server
• In-depth expertise in the implementation, optimization, troubleshooting and documentation of LAN/WAN networking systems
• Worked independently, meted deadlines provided detailed written status reports, documentation, work on multiple simultaneous projects and track status and progress on each
• Interaction with various inter and intra-department groups on both technical and personal level

Confidential, Richardson, TX

Sr Network Engineer

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 OSPF redistribution and authentication with type 3 LSA filtering to prevent LSA flooding and also Configured OSPF over frame relay networks for NBMA and point to multipoint strategies
• Implemented traffic engineering on top of an existing Multiprotocol Label Switching (MPLS) network using Frame Relay and Open Shortest Path First (OSPF)
• Experience in working with Network automation tools and testing for network change and configuration management
• Provided redundancy in a multi homed Border Gateway Protocol (BGP) network by tunings AS-path worked with Cisco IOS
• Implemented Hot Standby Router Protocol (HSRP) by tuning parameters like preemption
• Implemented various OSPF scenarios on networks consisting of 7600 routers
• Configured policy based routing for BGP for complex network systems
• Negotiate VPN tunnels using IPSec encryption standards and also configured and implemented site-to-site VPN, Remote VPN
• Tuned BGP internal and external peers with manipulation of attributes such as metric, origin and local preference
• Worked on FTP, HTTP, DNS, DHCP servers in windows server-client environment with resource allocation to desired Virtual LANs in the network
• Worked on Cisco Firewall(ASA)
• Configured F5 BIG IP Appliances.
• Worked on Different Vendor (JUNIPER) appliances.

Confidential, Sunnyvale, CA

Sr Network Engineer

Responsibilities:

• Responsible for implementing, supporting, and maintaining 24x7 network services
• Coordinated efforts with Engineer’s to ensure all network devices conformed to defined network standards
• Configured various Routing protocols such as RIP, OSPF, EIGRP, static routing
• Provided configuration of STP and Port Security on Catalyst 6500 switches
• Configure the Cisco CRS-1 Routing System, back out of configuration changes, and restore older versions of a configuration
• Troubleshooting of Cisco 2800,2900, 3900, 7200, 7600, Series routers
• Maintaining Core Switches, creating VLANs and configuring VTP
• Optimized performance of the WANnetworkconsisting of Cisco 3550/4500/6500 switches by configuring VLANs
• Performed redistribution with OSPF, EIGRP, RIP version 1 and 2 to enable communication with backbone
• Configured OSPF for Stub area, Totally Stubby Area and NSSA
• Executed BPDU Guard, port-fast, uplink fast and other spanning tree features on various layer 2 and layer 3 switches
• Troubleshooting of Cisco 2900, 3900, 6500, 7500, 7200 Series routers
• Configured static NAT, dynamic NAT, dynamic NAT overloading
• Back up a Cisco IOS to a TFTP server and Upgraded and restored a Cisco IOS from TFTP server
• In-depth expertise in the implementation, optimization, troubleshooting and documentation of LAN/WAN networking systems
• Worked with other team members in testing of the network architecture

Confidential

Network Engineer

Responsibilities:

• Manage installations, configuration and administration of Cisco equipment in IT architecture of organization
• Configure IT LAN/WAN elements and held responsibility of maintaining and monitoring performance of network
• Provide technical support, assisting users facing network problems. Perform advanced troubleshooting, diagnostics and provide level-1 solutions to network failures
• Network Migration from RIP to OSPF and EIGRP
• Network infrastructure support to routing and switching equipments
• Redistribute routing protocols and Frame-Relay configuration
• Design the layout for cable installations
• Troubleshoot and resolved dynamic routing, Ethernet switching and host connectivity issues in a window and network environment
• Troubleshoot wiring problems and serial communication lines
• Develop, plan and maintain documentation necessary for operation in support of LAN to WAN connectivity
• Maintain excellent communication with the IT Manager on all tasks and projects

Confidential

Network Engineer

Responsibilities:

• Migration of RIP V2 to OSPF, BGP routing protocols
• Configured EIGRP for Lab Environment
• Worked with Client teams to find out requirements for their Network Requirements
• Designing solutions for frozen requirements using Cisco Routers and Switches
• Deploying the network infrastructure to meet the requirements
• Created VLAN and Inter-Vlan routing with Multilayer Switching
• Monitor performance of network and servers to identify potential problems and bottleneck.
• Performed administrative support for RIP, OSPF routing protocol
• Maintained redundancy on Cisco 2600, 2800 and 3600 router with HSRP
• Provided technical support on hardware and software related issues to remote production sites