SUMMARY

• Over 15 years of Hands on experience. CCNA and CCNP Certified Professional with experience in routing and switching technologies, system design, implementation and troubleshooting of complex network systems including high - end routers: CISCO GSR, ASR1K, ASR9K, 2600, 2800, 3600, 7200, 12000 Series Routers, and Catalyst 4500, 6500, and 7600 switches.
• Strong hands on experience in installing, configuring and troubleshooting network hardware
• Expert Level Knowledge about TCP/IP, Spanning-tree, and OSI models.
• In-depth knowledge and hands-on experience on IP Addressing, Sub netting, VLSM and ARP, reverse & proxy ARP, Ping Concepts.
• Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Ether channel, STP, RSTP and MST.
• Implementation of HSRP, VRRP for Default Gateway Redundancy
• Expert knowledge in implementing filters on routes using Standard and Extended access-list.
• Experience in site-to-site and remote access VPN solutions. •In depth understanding of IPV4 implementation of Subnetting.
• Configured security policies including NAT, PAT, and VPN, Route-maps, Prefix lists and Access Control Lists.
• Extensive experience in WAN Technologies, Switching Technologies along with Failover Mechanisms and Inter Vlan Routing types.
• Good knowledge with the technologies VPN, WLAN and Multicast.
• Extensive experience in configuring and troubleshooting of protocols RIP v1/v2, EIGRP, OSPF, BGP and MPLS.
• Worked on network topologies and configurations, TCP/IP, UDP, Frame Relay, Token Ring, ATM, bridges, routers, hubs and switches.
• Well experienced in configuring HSRP, GLBP, ICMP, PPP, PAP, CHAP and SNMP.
• Experienced in configuring and deploying CBWFQ, WRED, LFI, QoS technologies.
• Experience in installing and configuring DNS, DHCP server.
• Excellent communication skills, enthusiastic, motivated and a team player.
• A highly organized individual who adopts a systematic approach to problem solving, effectively analyzes results and implements solutions.
• Highly motivated with the ability to work independently or as an integral part of a team and committed to highest levels of professional.
• Experience with Change management process and Project documentation tools like Excel and VISIO.

TECHNICAL SKILLS

Protocols/Services: TCP/IP, EIGRP, OSPF, BGP, IP SEC, MPLS, GRE, VTI, QOS and H323, STP, RSTP, VLAN, VTP, HSRP, VRRP, GLBP, 802.1Q, Qos

Network Tools: MRTG, JFFNMS, WhatsUP Gold, Ethereal sniffer, Net flow analyzer.

Operating Systems: Windows 7, XP/2000/2003,2008,2012, Linux, unix

PROFESSIONAL EXPERIENCE

Confidential

Manager - IT

Responsibilities:

• Experience working with data center deployment where we converted from Cisco 6500 to Nexus.
• Experience working with Nexus 5020, 2148, 2248 devices
• Experience configuring VPC (Virtual Port Channel), VDC (Virtual Device Context) in Nexus 5020
• Experience with configuring Nexus 2000 Fabric Extender (FEX) which acts as a remote line card (module) for the Nexus 5000
• Involved in working with Juniper devices like EX-2200, EX-4200, EX-4500, MX-480, M Series, SRX650, SRX240
• Troubleshoot wan related problems including OSPF, EIGRP, BGP routing and design
• Supporting EIGRP, OSPF and BGP based network by resolving level 2 & 3 problems of internal teams & external customers of all locations
• Deploying Cisco routers and switched such as 7200, 3800, 3600 and 3500, 4500, 5500. Management tools, SNMP, Syslog, Sniffer
• Worked on Implementation and upgrading core and distribution layer including multiple server farms silos with Nexus 5K and 7K.
• Involved in the deployment of Cisco Nexus 7k, 5k and 2K along with ASR 9K, 6509s (Sup 720), Cisco 4900, 3750, 2960 switches.
• Experience configuring VDC, VPC in Nexus 7010
• Configuration of routing protocols OSPF, BGP and policy based routing providing support for the Layer 2 and Layer 3 devices in the Network.
• Perform IOS upgrades in Cisco Routers and Switches including Nexus 3K and 5K.
• Design OSPF Areas for reliable Access Distribution and for Core IP Routing.
• Redistribution of routing protocols and Frame-Relay configurations
• Involved in Network Migration from EIGRP to OSPF
• Responsible for Implementation and configuration of VPN Tunnels.
• Configured HSRP and VLAN trunking 802.1Q, VLAN routing on catalyst 6500 switches.
• Configured BPDU Guard, port-fast, uplink fast and other spanning tree features.
• Study single point failures & design WAN structure in such a way that there are no failures in network in case of any device or link failure
• Setting up VLANS and configuring inter-VLAN routing, Trucking, STP, RSTP, port aggregation & link negotiation on Ethernet channel between switches datacenters using OTV.
• Created security policy according to user's requirement in Cisco ASA-5580, fire-wall using CLI & GUI

Confidential

Lead Network Engineer

Responsibilities:

• Designed VLAN's, access lists (ACL), troubleshooting IP addressing issues and Updating IOS images and other hardware installations
• Experience in troubleshooting VLAN, STP (Spanning tree protocol), & Switch Trunk and IP subnet issues.
• Configuration of Access lists (ACL) for the proper network routing for the B2B network connectivity.
• Involved in configuring Cisco routers and switch administration with enterprise level Cisco Routers such as Cisco ASR1004, 7200 series, 3800 series, 3700 series, 2800series, and Cisco catalyst series switches like 6500, 3750 and 4500.
• Configuring and troubleshooting of routing protocols such as OSPF, MP-BGP, EIGRP, and BGP v4.
• Configuration and Installation of Cisco ASR1002, 3845 routers for the migration of branches to new MPLS cloud rollout.
• Responsible for Checkpoint and Cisco ASA firewall administration across global networks
• Configuration and set up of Juniper SRX firewalls for policy mgmt. and VPN's •Provided firewall policy configuration and services with Juniper SRX 240 & 650 service gateways
• Troubleshoot and Worked with Security issues related to Cisco ASA, and IDS/IPS firewalls
• Perform Wireless Administration and troubleshooting for the corporate Wireless infrastructure.
• Build Logical design and Implementation of Wireless Solution
• Working on various 802.11x technologies for additional regulatory domains, Quality of Service, Inter Access Point Protocol etc.
• Performed day to day network operations using Remedy and HP Service Manager Tool for ticketing system and change management.
• Policy provisioning, access to specific segments of the networks through Cisco ISE.
• Engineered, configured and deployed routers using Cisco ISE.
• Installed 3502 Wireless Access Points WAPs at various locations in the company
• Installation & configuration of enterprise network connectivity between multiple branches
• Provisioning and troubleshooting Ethernet services, Gigabit networks and Connectivity issues with WAN circuits connecting branches.
• Dealt with NAT configuration and troubleshooting issues related access lists and DNS/DHCP issues within the LAN network.
• Managing and configuring Cisco Switches and Firewalls independently.
• Monitoring Network infrastructure using SNMP tools like HP Open view.
• Dealt with the escalation problems from Leve1, Leve2 & level 3 for routing, switching and WAN connectivity issues.
• Worked with Operations in troubleshooting issues related to connectivity, STP, VLANs, Inter VLAN routing, VTP, Ether channels, Layer 2/3 switching, log messages.
• Possess excellent verbal and written communication skills and experience developing and maintaining technical procedure and documentation

Confidential

Sr Network Engineer

Responsibilities:

• Network Engineer for CSC internal Network. Monitoring Network and handling Priority issues, Links monitoring, connectivity between different CSC India sites. Point to point WAN Links and Internet Leases Lines, VPN connectivity for different projects.
• Working on Cisco devices like access switches like 2950, 2960, 3550. Distribution and core switches 3560, 3750, 4506, and 6509 with switches supervisor redundancy. VLAN, STP, VTP, LAN IP Addressing Scheme.
• Working on Nortel Baystack LAN switches. Proxy controls Packeteer 2800 series.
• Monitoring systems used Solar winds and ping plotter. Packet sniffers like Ethereal. Implement Backup and fault tolerance with HSRP configuration and Switch Stacking. Routing protocols used Eigrp, BGP. Fault tolerance backup switching mechanisms like HSRP and Switch stacking. Designed, validated and implemented LAN, WLAN & WAN solution to client's requirements
• Experience working with Cisco ASA 5585-X firewalls with Firewall rules, IPSEC VPN, NAT, Active-Standby Failover, OSPF and Any Connect VPN technologies
• Experience working with data center migration project with converting 6500 Based environments to Cisco Nexus based data center.