SUMMARY:

• A Network Engineering Professional with over 8 years of experience in network design, implementation, troubleshooting and managing of large - scale enterprise networks. I provided Level-2 support for Network Operations Center's team as per the organizational requirement.
• Extensive experience of working on network equipment such as Cisco routers, Cisco switches, Cisco firewalls and F5 Load balancers
• Experience in Configuring and aggregating FEX (2148, 2248, and 2232) switches to the NEXUS aggregator switches (5548, 5596, 5020 and 5010) and NEXUS 7018.
• Experience in working on advanced features like VPC, VDC in Nexus and VSS in Catalyst 6500
• Expertise in implementing gateway redundancy protocols like HSRP and GLBP.
• Extensive experience in configuring and troubleshooting various Switching protocols which includes VTP, STP, RSTP, PVST, MSTP, creating VLANS and Ether Channel (PAgP, LACP) and implemented inter-VLAN routing besides creating SVI’s and VLAN Trunking using 802.1q.
• Proficiency in configuring, troubleshooting various Routing Protocols (BGP, OSPF, EIGRP, RIP, STATIC) and management of routes using manual summarization, default-routes and redistribution.
• Experience in implementation of offset-list for route manipulation and Access Control Lists, Route-maps, Distribute lists & Prefix- lists for route filtering.
• Experience Implementing Cisco ASA (5512/5550/5585 ) series firewalls and configured DMZ interfaces to restrict traffic flow.
• Network security including TACACS+, NTP, TFTP and SNMP.
• Hands on experience with Cisco IOS upgrades on different Cisco devices and modules.
• Experience in configuring ACLs, NAT, Subnetting, VLSM, Syslog Server, DHCP Server, DHCP relay on Cisco routers.
• Good understanding on Wireless LAN Controller.

TECHNICAL SKILLS:

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

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

LAN Technologies: Ethernet, Fast Ethernet, and Gigabit Ethernet, VLAN, Inter-VLAN Routing, VTP, STP, RSTPWAN Technologies Frame Relay, PPP, HDLC, (E1/T1/E3T3)

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

OS products/Services: DNS, DHCP, Windows (2000/2003/2008, XP)

Routing Protocols: RIP v1/v2, OSPF, EIGRP, BGP, PBR, Route Filtering, Redistribution, Summarization, and Static Routing.

Gateway Load Balancing: HSRP, VRRP, GLBP

Network Mgmt. Tools: Wire shark, Net flow Analyzer, Cisco Works, SNMP, SYSLOG

Security Server Protocols: TACACS+, LDAP, RADIUS

PROFESSIONAL EXPERIENCE:

L3 network Engineer

Confidential

Responsibilities:

• Responsible and resolving escalated tickets in complex situation where business critical applications are running.
• Troubleshooting the different issues where complex routing and switching expertise are required.
• Build complete new hospital environment having 4500-x VSS, NEXUS 5576 & 2248 VPC FEX. Access layer switch 4510 chassis and stacks of WS-C U.
• LAN and WAN design & implementation for existing and new environment. IP Subnetting and allocation ordering required BOM.
• Ordered bill of material (BOM) for a new hospital and worked on cabling parts along with the SFP’s.
• MPLS, Internet and METRO turn up and hitless upgrade on a 4500-X VSS without any downtime.
• Worked on MPLS complex routing changes on BGP, OSPF & EIGRP where P2P circuits are implemented and preferred.
• LAN refreshment making a NON VSS 4500 replacing with 6510 VSS and replacing all end of life switches to 3850 switches and depend on the requirement and port density replacing 4500 chassis.\
• LAN refreshment including design & implementation from collapse core to 3-tier architecture and WAN redundancy with a new service provider.
• Worked on cisco for bring outside vendors to communicate via VPN. Build GRE tunnels by connecting ASR9001 to the core for all different migration.
• Worked on servers migration and understanding the VMware and virtualization which connected to End of life and End of support switches from 3560, 3750, 3850 etc. which are having no dual power source to the Nexus-5x as part of power redundancy.
• Go-Live for a new hospital covering all the requirements for the client.
• Pre-requisite network survey for the juniper environment, where juniper 4200-X, Nortel 5548, Aruba 6000 wireless control .wireless survey with floor maps to check the signal strength.
• Worked on DMZ environment along with security team where PALO ALTO’s are in place for our network. Involving in F5 load balancing too and represent same on VISIO.
• Implemented Switches and Routers based on customer requirements
• Worked on Multicast based on application requirements and UCS chassis connection

L3 Network Engineer

Confidential, Houston, TX

Responsibilities:

• Implementation of Cisco Security manager 4.5 for managing all the firewalls right from installation, roles assigning, backups, HA and deployment. Involved in project planning and reviewing based on the requirements and deploying within the existing network.
• Need to provide Knowledge Transfer (KT) sessions to the team who work on firewalls and explain them how to handle and work with CSM 4.5.
• Worked with the data center planning groups, assisting with network capacity and high availability requirements.
• Designing and implementing test labs for the testing on CSM.
• Configured ASA 5525, 5540 and 5550 to ensure high-end security on the network with ACLs and Firewall.
• Created and design network layout and documented network system design with detail information using Visio software.
• Designing and configured Gigamon420for our network and deployed successfully in our data center as a replacement of fluke taps.
• Worked on Nexus platform7018, 5K series (5548, 5020 and 5010) and FEX (2248, and 2232) and deployed VPC, VDC and OTV and successfully implemented VSS on the Cisco switches.
• Deployed catalyst switches 6500, 4508, 4500 and 3750 in the distribution and access layer.
• Part of team implemented data center disaster recovery and responsible for configuration and testing purpose before production.
• Installand upgrade Cisco network switch and router IOS software
• Involved in managing the Routing Protocols OSPF and BGP on 7200 and 7600 and on ASR.
• Tested various BGP attributes like local p, MED, Weight and replicated customer issues in the testing environment lab
• IP Allocation for all applications and servers with high availability throughout the company.
• Involved in providing access to user machines and partners outside our network by SSL and IPSec VPN tunneling.

L2 Network Engineer

Confidential

Responsibilities:

• Responsible for entire LAN and WAN maintenance and troubleshooting of the company network. Involved in the Team of Data Center Operations to perform duties like administration and deployment of Cisco Routers and Switches according to the organization requirements.
• Worked with the data center planning groups, assisting with network capacity and high availability requirements.
• Involved in project planning and reviewing based on the requirements and deploying within the existing network.
• Idea on VMware and vitualization during the windows migration on 2003.
• Reviewing all changes to network configuration for technical accuracy and provide solutions to Multi-Protocol Network problems.
• Configured and managed VLANs, 802.1Q Trunk, RPVST+, Inter-VLAN routing, HSRP and LAN security for Layer-2 and Layer-3 switching domains as per the organization's requirement plan.
• Deployed Nexus 2000 series Fabric Extenders, Nexus 5000 series Fabric Interconnects and 7000 series switches. Deployed features like VPC, VDC, FEX links & OTV.
• Involved in managing the Routing Protocols OSPF and BGP.
• Tested various BGP attributes like local p, MED, Weight and replicated customer issues in the testing environment lab
• IP Allocation for all applications and servers with high availability throughout the company. Configured ASA 5540 to ensure high-end security on the network with ACLs and Firewall. worked on ACS 6004 console server (Avocent - Cyclades console server ) for authentication through TACACS+.
• Involved in providing access to user machines and partners outside our network by SSL and IPSec VPN tunneling.
• Involved in designing WAN infrastructure for redundancy in case of link failure.
• Responsible for technical evaluation, troubleshooting, overall project management, problem solving and turn-up of the service with the ISP.
• Created and design network layout and documented network system design with detail information using Visio software.

Network Engineer

Confidential

Responsibilities:

• Played responsible role for implementing, engineering, & level 2 support of existing network technologies / services & integration of new network technologies / services
• Configured and managed 2600, 3500, 7613 Cisco Routers and 4500 and 6500 series Cisco Switches
• Configured RPVST+ for loop prevention and VTP for Inter-VLAN Routing and configuring switch for 802.1x port based authentication
• Implemented port aggregation & link negotiation using LACP and PAGP
• Involved in design, implementation and configuration of HSRP for load balancing on L3 switches on different location of office on the switched network
• Worked on installation, maintenance, and troubleshooting of LAN/WAN ( NAT, DHCP, TCP/IP)
• Carried out route redistribution BGP to OSPF& manipulated route updates using distribute lists, route-maps & administrative distance, and offset-lists
• Configured Access List (Standard, Extended, and Named) to allow users all over the company to access different applications and blocking others
• Configured Client VPN technologies including Cisco’s VPN client via IPSEC
• Troubleshot issues and outages on Trunks and Router interfaces and firewalls extensively
• Provided technical assistance for LAN/WAN management and complex customer issues
• Assisted Network Engineer in the installation and configuration of firewalls
• Performed on-call support for installation and troubleshooting of the configuration issues
• Provided Technical support for improvement, up gradation, and expansion of the existing network architecture

Associate Network Engineer

Confidential

Responsibilities:

• Responsibilities included taking care of the IP Addressing in the organization which included designing new subnets based on the requirements.
• Involved in implementing & Designing the switched network. Configured STP, VTP and DOT1Q in switching network.
• Created VLAN & Inter-VLAN Routing with Multilayer Switching.
• LAN Cabling in compliance of CAT5 standards infrastructure like Racking and Stacking
• Assisted in Troubleshooting LAN connectivity and hardware issues.
• Maintained Redundancy on Cisco 2600, 2800 and 3600 routers with HSRP.
• Performed RIP, OSPF, EIGRP routing protocol administration
• Involved in monitoring the performance of the network, thereby identifying the bottlenecks in the network, troubleshooting the connectivity problems using Ping, Trace route, and Telnet.
• Involved in troubleshooting IP addressing issues and Updating IOS images using TFTP.
• Worked on troubleshooting customer related issues related to router configuration, L1/L2 issues.
• Daily responsibilities included monitoring network connectivity, administration of the remote location, assisted in design guidance for infrastructure upgrade.
• Installed Wireless Access Points WAPs at various locations in the company.
• Analyzed and studied Client requirements to provide solutions for network design, configuration, administration and security.