SUMMARY

• 7 Years’ experience in LAN/WAN, Layer 2, Layer 3, routing, switching, firewall technologies, systems design, administration and troubleshooting.
• Strong Quantitative & Analytical background, with emphasis on Network Security Management, Network sniffing; which is developed through professional experience in System/Network Administration.
• Expertise in configuration of Cisco Catalyst Switches 1900/2900/3550/6500 , Cisco Routers 1800/2500/2600/2800/3600/7200/7600 , ASR, ISR, GSR routers, Security Device manager (SDM), Load Balancers.
• Expertise on Cisco Datacenter Switches such as Nexus 6500, 7000.
• Thorough understanding of TCP and IP addressing, subnetting and ACLs.
• Extensive knowledge of deploying & troubleshooting TCP/IP, Implementing IPv6, Transition from IPv4 to IPv6, Multilayer Switching, UDP, Fast Ethernet, Gigabit Ethernet, Voice/Data Integration techniques.
• Experience in configuration of VLAN with 802.1q, VTP, STP and RSTP (802.1W).
• Experience in managing and securing remote access through designing and implementing various VPN technologies including IPsec, SSL; MPLS, Frame relay.
• Hands on experience in troubleshooting and deployment of various IP Routing Protocols EIGRP, RIP v1/2, OSPF & BGP.
• Extensive knowledge/experience in implementing, maintaining and troubleshooting LAN/WAN, Network security including NAT configuration, VLAN.
• Implementing security policies using ACL, PKI certificate, ASA Firewall, PIX Firewall, IPsec, VPN, AAA Security (TACACS+, Radius), Encryption standards on different series of routers.
• Extensive knowledge in developing test plans, designing of network, procedures, and testing Various LAN/WAN Products and Protocols.
• Extensive knowledge in different networking protocols DHCP, DNS, FTP, UDP, VOIP (SIP, H.323, MGCP), Quality of Service (QOS), Frame Relay.
• In depth knowledge with Network Monitoring tool like WhatsUp Gold, HP - open view, Cisco Works.
• Hands on experience with managing alarms and ticketing system in the Network Operations Center (NOC) environment.
• Good knowledge of WLAN including 802.11 standards, Lightweight and Autonomous systems, WPA, PEAP.

TECHNICAL SKILLS

Router Platforms: Cisco 2500, 2600, 2800, 3600, 3700, 7600, Nexus 7200, 7500.

Switch Platforms: Catalyst 1900, 2950, 2960, 3560, 3750, 4500, 6500.

Networking: TCP/IP, LAN, WAN, VLSM, Subnetting, VLAN, Inter-VLAN Routing, VPN, ACL, Frame-Relay, PPP, HDLC, ISDN, SONET, Route Redistribution, DHCP, DNS, HTTP, HTTPS, FTP, SMTP, SNMP, Telnet, SSH, Syslog, NTP.

Routing: RIP, RIPv2, IGRP, EIGRP, OSPF, BGP, MPLS, Policy Based Routing, Route Redistribution, Route Summarization.

Switching: VTP, STP, RSTP, VLANs, Trunking, Layer 3 Switching, PAgP, LACP.

Firewalls: Cisco PIX 510, 515, 525, Cisco ASA 5520, 5540, 5580, Checkpoint Firewall-1.

Load Balancers: F5 BIG-IP LTM/GTM Load Balancer.

Security: VLAN, VPN, ACLs, SSL, NAT, PAT, IDS, IPS.

Security Protocols: TACACS+, RADIUS.

Redundancy: HSRP, VRRP, GLBP.

Network Tools: Solarwinds, NetQoS, Cisco Works, HP Openview, TCP Dumps, Wire shark, Ethereal.

Network Simulators: GNS3, Packet Tracer.

Operating systems: Cisco IOS, CatOS, PIX OS, Windows XP/vista/7.

Documentation: MS Office, MS Visio.

PROFESSIONAL EXPERIENCE

Confidential, New York, NY

Network Engineer

Responsibilities:

• Worked as part of a team to manager Enterprise Network Infrastructure has a Tier 2 Engineer.
• Responsible for maintaining the entire switching domain across the campus of Head Office and also the Layer-2 campus network across the remote branches which included configuring VLANs and Trunks, Spanning Tree protocol, Port-Security, VLAN-MAPs and DOT1X for switches and Wireless.
• Has worked along with the team on configuring check point firewalls on DMZ and setting up the rules.
• Has done the Configuration on BIG IP (F5) Load balancers and also Monitored the Packet Flow in the Load balancers.
• Has a good experience working with the Trouble Tickets on F5 Load balancers.
• Switch experience includes Cisco Catalyst switches: CISCO 3750, 4500, 6500 series switches
• Implement QSIG & SIP configurations for voice call routing between Avaya and Cisco VoIP environments
• Managing enterprise BGP setup by configuring and troubleshooting BGP related issues. My responsibility was also to add new BGP peers for remote branch offices and business partners.
• Scaling of IGP and BGP in the core
• Administration of ASA firewalls in the DMZ and FWSM in the Server Farm to provide security and controlled/restricted access.
• Dealt with implementation of deployment related to Cisco devices and applying security policies on it
• Troubleshoot issues related to VLAN, VLAN Trunking, HSRP failovers, related issues
• Configuration of NAT
• Maintain effective communications with vendors, peers and clients in resolution of trouble-tickets, equipment RMAs, and support requests.
• Planning for upgrade of IOS on devices and performing the upgrade.
• Assisted in the architecture, evaluation and recommendations related to purchasing and installing hardware, software related to IP Networking.
• Monitored network traffic and developed capacity planning initiatives, making necessary recommendations for additional resources or hardware
• My responsibilities also include writing and executing Test Plan, Desk level procedures and Test Case Documents for smooth network operations

Confidential, Austin, Texas.

Network Engineer

Responsibilities:

• Installed and configured Cisco routers (3700, 2600, 2500) using routing protocols OSPF and EIGRP
• Installed and configured catalyst switches (4500, 2900, 1900) with VLANs, VTP, STP and Trunking protocols like Dot1q
• Configured ACLs and Cisco PIX Firewalls to prevent access to internal network from unauthorized users
• Implemented Firewall Load balancer at the edge network and Server Load balancer at the data center edge
• Configured SNMP on all the devices to support network monitoring tools ( Solar winds)
• Provided technical assistance to users, including troubleshooting also identified and resolved network problems to reduce downtime
• Responsible for design and architecture, integration of adjunct connections to the UCCE: CVP/ICM PG's, VXML, CUSP and VG's.
• Drafted and setup network services including new service evaluations and monitored remote offices.
• Replace outdated Cisco switches & routers in existing data centers & installing new Cisco switches & routers
• Solved the on-time performance problems
• Tested various protocols at layer 2 and layer 3 in lab environment before installing at live network
• Documented complete network topology including configuration.
• Managed Cisco Routers and troubleshoot layer1, layer2 and layer3 technologies for customer escalations.
• Hands on experience in configuring QoS on Cisco Routers/Switches.
• Design and implementation of the WAN IP infrastructure using frame relay, T1/T3, DSL.
• Migration from Frame-Relay/ATM network to MPLS-based VPN for customer’s WAN infrastructure
• Planning and Implementation of Subnetting, VLSM to conserve IP addresses.
• Designed WAN structure to prevent single point of failure in case of link failure.

Confidential, Hampstead, Maryland

Network Support Engineer.

Responsibilities:

• Installed and Configured 2800, 3800 router series and Catalyst series switches 6513 and 3750.
• Configured and troubleshot OSPF, RIPv2.
• Involved in configuration and troubleshooting of redundancy protocols like HSRP to provide redundancy in the network.
• Configured VLANs, ACLs and troubleshoot IP addressing issues.
• Worked on complete LAN, WAN development (including IP address planning, designing, installation, configuration, testing, maintenance etc.)
• Implemented VLANs between different departments and connected them using trunk by keeping one Vlan under server mode and rest falling under client modes.
• Implemented and configured GLBP on core switch to provide redundancy.
• Installed and configured number of wireless access points over the campus for internal wireless connectivity.
• Configured and managed layer 2 switching tasks including address learning, efficient switching tasks, etc.
• Implemented Etherchannel LACP between catalyst switches to provide high-speed link and fault tolerance.
• Created dedicated VLANs for Voice & Data with QOS for prioritizing VOICE over DATA.
• Configured Voice ports and Dial peers on the call manager for the VOIP call to reach remote destination.
• Configured Cisco Call Manager (CME) v 3.0 with Cisco Unity Express for allowing voice mails between IP phones on the same router and from different sites.
• Worked on the switching related tasks including implementing VLANs, VTP.
• Used Dynamic Host Control Protocol (DHCP) to automatically assign reusable IP addresses to DHCP clients.
• Configured ACLs and Cisco PIX Firewalls to prevent access to internal network from unauthorized users.
• Implemented and configured Cisco VPN, Configured security parameters, monitoring and maintenance.
• Provided support for TCP/IP, Routers, Data Switches, Various networking protocols, Network Management, Ethernet, and Frame Relay.
• Configured VLANs and Spanning tree within the network.
• Prepared documentation of the network and the network products installed or being used on network.

Confidential, Royersford, PA

Network Engineer

Responsibilities:

• Conducted a thorough technology analysis as a complete upgrade of existing network, which was required by the company.
• Configured routers including 3925, 3845, 2811, 2600 series along with Cisco switches including 2960, 3750.
• Performed OSPF and BGP protocol administration and used redundancy protocols like HSRP, VRRP.
• Configured VLANs, VTP, RSTP, STP (Spanning Tree Protocol), and Ether channel and port security at switching level.
• Works with the end users to validate problem descriptions and perform detailed problem diagnosis; track and update problems in HP Service manager (Trouble-ticketing System).
• Assisted Operations with troubleshooting and root cause analysis for network incidents in the environments.
• Assisted in migration of existing B2B VPN tunnels with the vendors from the 3060 VPN concentrator to ASA Firewall and configured site-to-site IPSEC VPN .
• Configured DMVPN between different Vendors.
• Worked on the infrastructure network design and implementation related internal projects for establishing connectivity between the various field offices and data centers
• Working closely with Data center management to analyze the data center sites for cabling requirements of various network equipment.
• Maintained a Network with more than 600 Network devices, some 25,000-end hosts, and the other Network devices like DHCP, DNS servers, and Firewall servers.
• Performed multiple firewall changes on the PIX, ASA, and Palo Alto firewall based on the requirements and monitored firewall changes using firemon Tool.
• Designed and implemented an IP addressing scheme with subnets for different departments.
• Created work instructions and standard operating procedures based upon network implementation and design.
• Designed network diagrams based on the requirements and maintained it in MS share point site.
• Administer and trouble shot cisco PIX/ASA/ Palo Alto firewalls, Cisco CSS and F5 load balancers
• Configured MPLS CE (Customer edge router).
• Used multiple network monitoring tool solar winds for supporting the existing core network environment and Network edge devices.
• Configured WAP and performed troubleshooting of WAP and WLC using Cisco NCS Monitoring Tool.
• Installed, configured and monitored IT Watchdogs.
• Installed and configured Infoblox appliance for various locations in Horizon.
• Extensively used Infoblox for IP address management. Created and added IPv4 Network, Reserved IP addresses for various devices, Defined DHCP Scope as per the requirements, Created DHCP scope options for setting up Voice VLANs, KACE Appliance, and PXE Clients etc.
• Used Adaptive Security Device Manager while performing security audit on routers.
• Scheduled and monitored multiple Videoconferences using TMS (Tele management Suite).
• Created live events on Show and share. Coordinated with W@H users to check on any issue during the live streaming.
• Responsible for configuration and administration of over 25 firewalls which includes Checkpoint, Juniper and Cisco ASA firewalls.
• Audited network devices to confirm network policies and guidelines meet or exceed targets for successfully audits.
• Worked closely with Sales representatives for the AVAYA Dialer Project.
• Assisted Cisco and Presidio (Blue water) during the design and implementation on various projects in our company.
• Used Cisco works, Solar winds, Content Management Systems (CMS), Cisco secure access control server (ACS), Cisco SMARTnet, Riverbed Network tools to update the network documentation.
• Other responsibilities included support other teams and change control.

Confidential, Manhattan, New York

Network Engineer

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.