SUMMARY

• Over 8 years of experience as Network Engineer in testing, troubleshooting, implementing, optimizing and maintaining enterprise data network and Service Provider systems.
• Expert in configuration of routing protocols and deployment of RIP, OSPF, EIGRP & BGP over Cisco Routers in Production environment.
• Expert in Configuration of VLANS using Cisco routers and multi - layer Switches and supporting STP, RSTP, PVSTP, MSTP along with trouble shooting of IEEE 802.1q, inter VLAN routing and VLAN trunking.
• Hands on experience in deployment of Frame-Relay, MPLS,ATM, PPP, ISDN.
• Worked on MPLS-VPN designs for the migration of Frame relay to MPLS system.
• Implemented redundancy with HSRP, GLBP, Ether channel technology etc.
• Working knowledge of IDS and IPS, policy routing, private VLANs, NAT and ACLs.
• IOS upgrades on routers and switches and Installation of SDM.
• Experience with Nexus OS.
• In-depth knowledge and hands-on experience on IP Addressing, Subnet, VLSM, and ARP, reverse and proxy ARP, Ping concepts.
• Maintaining and updating inventory of all network hardware, Management and Monitoring by use of SSH, Syslog, SNMP, NTP.
• Enabled Authentications such as WPA2, PAP/CHAP, and AAA.
• Worked on Network Monitoring tools like Cisco Network Assistant,Solarwinds,HP open view, Wireshark.
• Efficient in preparing Technical Documentation using Microsoft VISIO/Office and also in preparing presentations.
• Self-motivated, quick learner, zealous and hardworking, can handle multiple demands and competing priorities.
• Worked as part of the Technical Support Team by involving in the documentation and training of the end-users, and in solving the network issues.

TECHNICAL SKILLS

Cisco router platforms: 2500, 2600, 2800, 3600, 3700, 3800, 7200, 7609, ASR1k.

Cisco Switch platforms: 2900XL, 2950, 2960, 3560, 3750X, 4500, 6500.

Firewalls: Cisco PIX 501, 510, 515E, Cisco ASA 5520, 5540, Checkpoint.

WAN Technologies: FRAME RELAY, ISDN T1/E1 (PRI/BRI), PPP, ATM, MPLS, leased lines, DSL modems.

LAN Technologies: Ethernet, Fast Ethernet, Gigabit Ethernet, NAT/PAT, FDDI.

Implemented: Cisco Secure Access Control Server (ACS) for TACACS+/Radius.

VOIP Devices: Cisco IP phones, Avaya.

IPSEC/VPN Configuration: PIX to Router, Router to Router, PIX to VPN wildcard client, Router to VPN wildcard client, PIX to PIX, fully meshed configurations.

Routing Protocols: RIP, OSPF, EIGRP, and BGP.

Switching Protocols: VTP, STP, RSTP, MSTP, VLANs, PAgP, and LACP.

Layer 3 Switching: CEF, Multi Layer Switching, Ether Channel.

Carrier Technologies: MPLS, MPLS-VPN.

Redundancy protocols: HSRP, VRRP, GLBP.

Security Protocols: IKE, IPsec, SSL, AAA, Access-lists, prefix-lists.

PROFESSIONAL EXPERIENCE

Confidential, Sunnyvale CA

Sr. Network Engineer

Environment: Cisco routers ASR1K, 7200, 3925E and 2951E, Cisco catalyst series switches 6500, 4510, 3560X, 3750X and 2950T; OSPF, BGP, RIP, MPLS and WCCP, VLANs, STP, 802.1q trunking, NAT, Load Balancing using GLBP, Subnetting networks, QIP, DSDB.

Responsibilities:

• Installing, Maintaining and Troubleshooting of Cisco ASR 1K, 7200, 3925E and 2951E Routers and Cisco 6500, 4510, 3560X, 3750X and 2950T Switches for deployment on production network.
• Design, Implementation and Configurationof branch and campus sites and create a seamless network hardware standard across all North American branches by coordinating with Engineering team and service providers.
• Implementation of L3 MPLS-VPN and Migration of branches to the new MPLS cloud
• Design, Installation and consolidation of local server farms in multiple branch locations with Cisco 4500-X at distribution and 4948’s replacing the 3750’s at access level.
• Tested BGP features such as as-override, Local pre, EBGP load balancing
• Tested and implemented various BGP attributes such as Local Preference, MED, AS-PATH, Community, Extended community
• Worked on Circuit turn ups, VLAN deployments, Blade insertions, IOS upgrades
• Perform constant maintenance on Cisco routers and switches with IOS upgrades following design standards
• Implementation and verification of GLBP protocolfor default Gateway Redundancy.
• Configuration of Extranets and Modifying Route mapsfor onboarding new clients on to the company’s network.
• Configuring and Troubleshooting VLANS and Inter VLAN routing for improving LAN performance.
• Subnetting Networks and Troubleshooting DHCP and DNS issues.
• Ensure branch readiness prior to cutover and troubleshooting network issues that arise during the migration.
• Network Management using CheckNet, HP NASH and msVerify scripts and provide DHCP scoping and creating DSDB entries in QIP.
• Provide full coverage and support in the migration of branches to ensure branch connectivity with the Data centers with successful migration of all hosts.
• Execute WAN activation TCM’s and Troubleshoot WAN, T1, T3/DS3 and gigabit WAN lines in upgrading WAN connectivity for all branch locations.
• Deploying and installing AVAYA IP phones.
• Provided configuration change recommendations for routers, switches, and Check Point firewalls.
• Managed and worked with VPNs within the organization and to third-party entities.
• Performed an analysis of source host and destination path by tracing it through the network router and switches as well as the firewalls it passes.
• Created a detailed design drawing of the sites, which are under up-gradation and getting it validated from the technical design team.
• Maintained and managed the remote site network, consisting of QoS design, IP addressing, Visio Drawings.

Confidential, NJ

Network Engineer

Environment: Cisco routers 7200, 3800, 3700, 2800, Cisco catalyst series switches 6500, 3750, 4500, OSPF, BGP, Cisco PIX and ASA, VLANs, STP, 802.1q trunking, Frame Relay, NAT, MPLS, Site to site VPN, Wireshark, HP openview.

Responsibilities:

• Involved in configuring Cisco routers and switch administration working with enterprise level Cisco Routers such as ASR1K, 7206, 3845,3725 and2800series, and Cisco catalyst series switches like 6500, 4500-X, 4510, 3750X
• Configuring and troubleshooting of routing protocols such as OSPF and BGP for effective communication.
• Configuration ofVLAN’s, access lists (ACL), troubleshooting IP addressing issues and Updating IOS images and other hardware installations
• Configuring, upgrading and verifying the NX-OS operation system.
• Experience in troubleshooting VLAN, STP (Spanning tree protocol), & Switch Trunk and IP subnet issues.
• Dealt with Cisco ACE load balancer in managing the key role issues.
• 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.
• Coordinated with senior engineers with BGP/OSPF routing policies and designs, worked on implementation strategies for the expansion of the MPLSVPN networks.
• Implementation of F5 Load balancers.
• Provisioning and troubleshooting Ethernet services, Gigabit networks and Connectivity issues with WANlinks
• Installing and configuring the VPN’s for the clients (site to site).
• Monitoring Network infrastructure using SNMP tools like HP Openview.
• Involved in Configuration of Access lists (ACL) for the proper network routing for the B2B network connectivity.
• Dealt with the escalation problems from Leve1, Leve2 & level 3 for routing, switching and WAN connectivity.
• Worked with customers 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, Manhattan, New York

Network Engineer

Environment: Cisco routers 2800, 3600, 3800, 7200, 7600, Cisco catalyst series switches 3750, 4500, 6500, Cisco PIX and ASA firewalls, OSPF, BGP, RIP, AAA, NAT, DHCP server, VOIP, SolarWinds, site-to-site.

Responsibilities:

• Responsible for implementing, engineering, & level 3/4 support of existing network technologies / services & integration of new network technologies / services.
• Key contributions include troubleshooting of complex LAN /WAN infrastructure that include routing protocols EIGRP, OSPF & BGP.
• Configured and managed Cisco access layer routers and switches.
• Support Network Technicians as they require training & support for problem resolution including performing diagnostics, & configuring network devices.
• Participate in 24 x 7 incident & problem support.
• Recommended Security considerations for the Intranet data center, integrating security, providing solution design details and configuration details.
• Migration of existing IPSEC VPN tunnels from Pre-Shared key to Certificate Authority for purpose of scaling.
• Configuring switch for 802.1x port based authentication.
• Implemented QoS using queuing, policing, shaping, compression, congestion avoidance techniques.
• Designed WAN structure to prevent single point of failure in case of link failure.
• Maintenance and Troubleshooting of connectivity problems using Ping, Trace route.
• Planning and Implementation of Subnetting, VLSM to conserve IP addresses.
• Configured STP for loop prevention and VTP for Inter-VLAN Routing.
• Troubleshooting issues and outages on Trunks and Router interfaces extensively.
• Technical assistance for LAN/WAN management and complex customer issues.
• Performed route redistribution & manipulated route updates using distribute lists, route-maps & administrative distance.
• Creating & applying different types of access-lists for these effects to take place.
• Administered &setup Cisco PIX firewalls at multiple sites.

Confidential

Network Administrator

Environment: Cisco routers 2500, 2600, 2800, 3600, Cisco catalyst series switches 2950,3500, 3700, 4500, Nortel switches, RIP, OSPF, BGP, Frame Relay, Cisco PIX firewall, IPsec, SolarWinds.

Responsibilities:

• Installed and Configured Cisco routers 2500 series, 2600series, 2800 series, 3600 series.
• Installed and Configured Cisco Switches 4500, 3500, 3700, 2950 and Nortel Switches.
• Designed, managed and performed troubleshooting RIP, OSPF routing environment comprising of multiple areas.
• Designed and implemented VLAN and SSID layout for customer network.
• Worked on Layer 2 protocols such as STP, VTP, and other VLAN troubleshooting issues and configuring switches from scratch and deployment.
• Installed and configuredVPN IPsec for remote users using Cisco VPN Client and Cisco Secure ACS.
• Created VLANs and Inter-VLAN routing with Multi Layer Switching (MLS).
• Project managing complex network implementations, including Cisco PIX firewall, Cisco VPN and Layer 3 implementations.
• Performed installation and configuration of Cisco Pix firewalls 515E, 525.
• Monitored and supported all aspects of network connectivity using SolarWinds.
• Supported and Administration of Windows Systems.
• Maintained the General Networking objectives of System/Network Operations.

Confidential

Network Assistant

Environment: Cisco routers 2500, 2600, 2800, 3600, Cisco catalyst series switches 2950,3500, 3700, 4500, Nortel switches, RIP, OSPF, BGP, Frame Relay, Cisco PIX firewall, IPsec, Solarwinds.

Responsibilities:

• Installation and Configuration of Cisco routers 2500 series, 2600 series, 2800 series, 3600 series
• Installation and Configuration of Cisco Switches 4500, 3500, 2900, 2950 and Nortel Switches.
• Design, manage and troubleshoot RIP, OSPF routing environment comprised of multiple areas.
• Worked on Layer 2 protocols such as STP, VTP and other VLAN troubleshooting issues and configuring switches from scratch and deployment.
• Cisco IOS Architecture for Cisco routers and switches
• Creating VLANs and Inter-VLAN routing with Multi Layer Switching (MLS).
• Cisco IOS Architecture for Cisco routers and switches.
• Installed and configured for VPN IPsec for remote users using Cisco VPN Client and Cisco Secure ACS.
• Project managing complex network implementations, including Cisco PIX firewall, Cisco VPN and Layer III implementations.
• Installation and Configuration of Cisco Pix firewalls 515E, 525.
• Monitor, improve, and support all aspects of network connectivity using Solar winds.
• Support and Administration of Windows Systems.
• Maintenance the General Networking objectives of System/Network Operations.