SUMMARY:

• 8+ years of experience in routing, switching, firewall technologies, systems design, and administration and troubleshooting.
• Exposure to LAN/WAN setup, installation, configuration and troubleshooting
• Experience of routing protocols like EIGRP, OSPF, RIP, and BGP, MPLS.
• Experienced in Troubleshooting for connectivity and hardware problems on Cisco Networks.
• Extensive experience with Cisco IOS, Windows client/server operating systems, Linux, Networking technologies, Firewalls & Bluecoat proxy SG.
• Experience in L2/L3 3 protocols like VLANS, STP, VTP, MPLS and Trunking protocols.
• Hands on experience with F5, Acme Packet Net - Net & Extreme switches.
• Good knowledge in WAN Technologies like ACL, NAT and PAT, IPSec and VPNs.
• Worked in OSI model, TCP/IP, UDP, IP addressing and Sub netting.
• Hands-on experience in the setup of HSRP, ACL, and tunnel installations.
• Enhanced level of knowledge with IGRP, PPP, ATM, and T1/T3 Frame-Relay.
• Extensive knowledge in different networking protocols DHCP, DNS, FTP, VOIP (SIP, H.323, MGCP), Quality of Service (QOS).
• Basic understanding to work on Junos-Juniper router.
• Great team player and able to work under pressure.
• Exceptional skills in IPV4 Sub-netting.
• Demonstrated success record in: Managing multiple tasks with proven ability to meet deadlines and proactively identifying the problem to solve complex technical issues.
• Highly enthusiastic, creative team player, project implementation, analytical, interpersonal and communication skills

TECHNICAL SKILLS:

Cisco & Other vendor equipment: Nexus7K,5K,2K&1K,Ciscorouters(7200,3800,3600,2800,2600,2500,1800series)&CiscoCatalystswitches(6500,4900,3750,3500,4500,2900 series).

Routing Protocols: RIP, IGRP, EIGRP, OSPF, IS-IS, BGP,HSRP, VRRP &GLBP

Infrastructure services: DHCP, DNS, SMTP, FTP, TFTP

LAN technologies: Ethernet, Fast Ethernet, Gigabit Ethernet,& 10 Gigabit Ethernet, Port-channel, VLANS, VTP, STP, RSTP, 802.1Q

WAN technologies &SONET: Frame Relay, ISDN, ATM, MPLS, leased lines exposure to PPP, DS1, DS3, OC3, T1 /T3

Network Security: NAT/PAT, Ingress & Egress Firewall Design, Configuration, Dynamic, Reflexive ACL and authentication AAA(TACACS+& RADIUS)

Wireless access points: Cisco 8500,5700, 3850, Cisco Aero net 3700

Network Management: SNMP, Cisco Works, Wire shark

Platforms: Cisco IOS-XR, Cisco Cat OS, Cisco IOS(11.x, 12.x), PIX,IOS(6.x, 7.x), CAT-OS UNIX, LINUX, Windows XP, NT,2000, 2003

Programming: C, C++, HTML

Documentation: MS Office, MS Visio

PROFESSIONAL EXPERIENCE:

Confidential, Cupertino, CA

VOIP Network Engineer

Responsibilities:

• Working as Network/Voice Engineer in the AT&T’s Global Network Operations Center (GNOC) - VOIP Networking team providing Network Support for all Pop’s (Point of Presence) of AT&T spread across the Globe.
• Experience in working on call rotation and provide 24x7 network support in carrying out day-to-day maintenances on Cisco, Juniper routers and switches.
• Providing support for troubleshooting and maintaining IP networks, concentrating on facilities ranging from Gigabit Ethernet to OC192 in Cisco, Juniper high-end routers, switches & Oracle Acme packet session border controller.
• Hands on experience in configuring/troubleshooting OSPF, BGP, VLAN HSRP/VRRP and Firewall related issues on Cisco, Juniper.
• Deploying, configuring and troubleshooting Cisco high-end routers and switches (CRS-1, GSR-12000, ASR-1000, 7600, 6500, 3800, 3700, 2900, Nexus switches 2k, 5k, 7k, catalyst 4500 X-series, 5500 and 6500), Confidential HT 8740, F5 load balancers, Juniper high-end routers M320, MX480 and MX960 & Acme packet net-net 4250 & 4500 for all remote sites and AT&T’s National Technology Centers.
• Expertise in performing network validation testing and operational readiness testing on Cisco catalyst 4507R+E switches, Nexus 4001I switch module for Confidential, F5 load balancers, Confidential blade centres & Acme packet net- net 4250’s & 4500’s.
• Adding dial-peer on cisco gateways, modular access routers 2621XM & 2651XM & configuring Acme session agents, adding SIP Agents on session border controller for services like AVOICS & IP Flex reach.
• Initiating connectivity for the filed DBEs with the NSM server (Add the DBEs to the NSM & allow TACACS to be configured on the field DBEs).
• Configured Ether-Channel to bundle interfaces between the core customer edge routers and the service blocks using LACP and PAGP to increase link capacity. Configured VPC between nexus 5k, 2k (FEX) & servers.
• Extensive experience in upgrading IOS on Cisco 7600, FWSM Firewalls, Software replacement on session director & setting up hard-drive on Acme packets 4500.
• Monitoring NMS system for different Network Alerts.
• Troubleshooting various network related issues on production devices and work with the vendors to get the failed hardware replaced.
• Help customer in troubleshooting to ensure problems are satisfactorily resolved in a timely manner with focus on providing a high level of support.
• Lead VAN 2 & 3 to VAN 4 (VOICE AWARE NETWORK) migration project. Documented the work and wrote method of procedure for the migration.
• Re-configured completed BGP with new ASN & new uplink neighbor IP’s.
• Experience in updating the session groups and adding new session agents for new application servers on session border controller using EMS (Element Management System). Add app server IP address to the ACL from cli. Flex Reach Sip Manipulation Configuration changes on 4500 SDS IPBE
• Hands on experience with F5 & Extreme switches for Web RTC traffic.
• Configuring new and updating existing ACL’s for traffic flow using TFTP server.
• Configure SSL offloading on SSL Module with CSM and on ACE for Clients

Confidential, Armonk. NY

Network Engineer

Responsibilities:

• Configured Routing protocols such as RIP, OSPF, EIGRP, static routing and policy based routing.
• Team member of Configuration of Cisco 7206 router with VPN and Configuration of Catalyst switches.
• Configuration 7609, 7606 with OSPF and catalyst 6505, 4500, 3550 and Nexus switches with various VLAN.
• Create and test Cisco router and switching operations using OSPF routing protocol, ASA Firewalls, and MPLS switching for stable VPNs.
• Configuration and troubleshooting link state protocols like OSPF in single area and multiple areas.
• Experience working bandwidth management, stream-splitting using Bluecoat.
• Redesign of Internet connectivity infrastructure for meeting bandwidth requirements.
• Configured HSRP and VLAN trucking 802.1Q, VLAN Routing on Catalyst 6500 switches.
• Optimized performance of the WAN network consisting of Cisco 3550/4500/6500 switches by configuring VLANs.
• Configured VLANs with 802.1q tagging. Configured Trunk groups, ether channels, and Spanning tree for creating Access/distribution and core layer switching architecture.
• Configured BPDU Guard, port-fast, uplink fast and other spanning tree features.
• Configuration and troubleshooting of Cisco 2500, 2600, 3000, 6500, 7500, 7200 Series routers.
• Providing Technical Support and solutions for Network Problems.
• Implementing NAT solution's on wan applications.
• Planned, tested and evaluated various equipments, systems, IOSs and procedures for use within the Network / security infrastructure.
• Upgrading IOS, troubleshooting network outages.
• Continually monitor, assess and improve network security, test and implement new security technologies.
• Participate in all technical aspects of LAN, WAN, VPN and security Internet Service projects including, short and long term planning, implementation, project management and operations support as required.
• Worked on Cisco Routers, Active /Passive Hubs, Switches, Cisco PIX Firewall, NOKIA Firewalls, Ericson session border gateway, Nortel VPN Concentrators TCP/IP, NAT and Checkpoint ESX/GSX firewall.
• Having Data Center Design Experience, installing and Configuring Network Devices in a Data Center including patching the cables in the Patch Panel. Design and implemented network infrastructure and configured the entire network Infrastructure devices including Network Printers and Register.
• Hands-on experience in the network management of circuits using TDM and Frame Relay network, Trouncing, performing configuration and provisioning management, fault management and performance monitoring

Confidential, NYC

Network Consultant

Responsibilities:

• Hand on experience the configuration and implementation of various Cisco Routers and L2 Switches.
• Extensive experience in configuring and implementing EIGRP, OSPF and BGP.
• Supported core network consisting of Cisco 7200 series routers running multi area OSPF
• Configuration of EIGRP and OSPF as interior gateway protocol with route filtering and route redistribution.
• Implemented stub/Totally stub areas and various OSPF features like route-summarization and SPF throttling.
• Responsible for service request tickets generated by the helpdesk such as troubleshooting, maintenance, upgrades, patches and fixes with all around technical support
• Supporting EIGRP and BGP for problems of L2/L3 in internal teams & external customers.
• Providing daily network support for national wide area network consisting of MPLS, VPN and point-to point site.
• Upgrading Used DHCP to automatically assign reusable IP addresses to DHCP clients.
• Configured and installed multi-protocol (IP, IPX) multi-interface Cisco routers.
• Design, WAN link using PPP Multilink and by implementing Cisco WAAS
• Negotiate VPN tunnels using IPSec encryption standards and also configured and implemented site-to-site VPN, Remote VPN.
• Configuring STP for switching loop prevention and VLANs for data and voice along with Configuring port security for users connecting to the switches.
• Worked on commissioning and decommissioning of the MPLS circuits for various field offices.
• Network Cabling, dressing, labeling and troubleshooting various network drops onsite.

Confidential, CT

Network Engineer

Responsibilities:

• Assisted in troubleshooting LAN connectivity and hardware issues in the network.
• Studied and analyzed client requirements to provide solutions for network design, configuration, administration, and security.
• Involved in troubleshooting IP addressing issues and Updating IOS images using TFTP.
• Monitor performance of network and servers to identify potential problems and bottleneck.
• Performed RIP & OSPF routing protocol administration.
• Interacted with support services to reduce the downtime on leased lines.
• Troubleshoot problems on a day to day basis; provide solutions to fix the problems.
• Monitor the operability and reliability of the network.
• Support configuration and installation of Cisco Aironet wireless network equipment.
• Maintenance and Troubleshooting of connectivity problems using Ping, Trace route.
• Managed the IP address space using subnets and variable length subnet masks (VLSM).
• Worked along with the team in ticketing issues; responsibilities included documentation and support other teams.

Confidential

IP Technician

Responsibilities:

• Configured Cisco Routers for OSPF, IGRP, RIPv2, EIGRP, Static and default route.
• Worked on HSRP for hop redundancy and load balancing.
• Configured the Cisco router as IP Firewall and for NATing Configured RSTP, MST and used VTP with 802.1q trunk encapsulation.
• Provided port binding, port security and router redundancy through HSRP.
• Designed ACLs, VLANs, troubleshooting IP addressing issues and taking back up of the configurations on switches and routers.
• Provided testing for network connectivity before and after install/upgrade
• Switching related tasks included implementing VLANS and configuring ISL trunk on Fast-Ethernet and Gigabit Ethernet channel between switches.
• Experience in Cisco switches and routers: Physical cabling, IP addressing, Wide Area Network configurations and Multi-casting.
• Ability to properly configure a wireless network without dead areas for cisco 4000 & 5000 series controllers, WISM controllers, heavy & light weight Cisco access point.
• Performed troubleshooting, while maintaining trouble ticket tracking, following internal/external.