SUMMARY

• Over 7 years of experience in IP network design, network integration, deployment and troubleshooting.
• Extensive knowledge in configuring and troubleshooting Layer 3 Interior Gateway Routing protocols such as Link - State routing protocols (OSPF and IS-IS) and Distance Vector routing protocols (RIPv1, RIPv2 and EIGRP).
• Good knowledge in configuring and troubleshooting Exterior Gateway protocols such as BGPv4 including internal BGP (iBGP) and external BGP (eBGP).
• Extensive knowledge of Layer 1 technologies such as T1, T3, SDH, SONET and Fiber Optics.
• Hands on experience in configuring high end routers like GSR 12000 series, 7500 series and Catalyst Switches like 7600, 6500, 4500 series.
• Extensive experience in upgrade, backup and password recovery of Cisco IOS.
• Experience in working with Cisco Nexus Switches like 5000 and 7000 series and Virtual PortChannel configuration.
• Knowledge and configuration of redundant router protocols like HSRP, VRRP and GLBP.
• Substantial knowledge, including the configuration, of Spanning Tree Protocol (STP), Per VLAN Spanning Tree (PVST), Rapid STP (RSTP) and Rapid per VLAN Spanning Tree (PVST+).
• Thorough experience in configuring Virtual Local Area Networks (VLAN) with IEEE 802.1Q, VLAN trunking protocol (VTP), shortest path bridging, Multiple VLAN Registration Protocol and VLAN Cross Connect (CC).
• Experience in troubleshooting both connectivity issues and hardware problems on Cisco based networks.
• In-depth knowledge and hands-on experience in Tier 2 ISP Routing Policies and Firewalls.
• Experience in testing Cisco routers and switches in lab scenarios and deploy on site for production.
• Good knowledge of IPv4 and IPv6 Addressing, Fixed Length and Variable Length Subnet Masking (VLSM), OSI and TCP/IP models.
• Experience in migration of IPv4 addresses to IPv6 addresses using mechanisms like Tunnel Broker, Transport Relay Translation (TRT), NAT64, DS-Lite and DNS64.
• Experience in installing and configuring NAT, DHCP server and DNS in large networks.
• Experience in configuration of LAN protocols such as Ethernet and Fiber Distributed Data Interface (FDDI) on Cisco Switches.
• Implemented traffic filters using standard and extended access-lists, distribute-lists and route maps.
• Provided support that included resolving day-to-day operational issues with tickets generated by a server.
• Experience in documenting and preparing the process related operational manuals.
• Wide exposure to LAN/WAN setup, installation, configuration and commissioning of network devices.
• Good understanding of SNMP, IP SLA and Network Monitoring with experience in tools like PRTG.
• Experience in troubleshooting a variety of problems. Streamlined and improved process to be quicker to market, ensured compliance and optimized operational efficiency. Identified opportunities for continued improvements of process to ensure maximum output.

TECHNICAL SKILLS

Cisco Routers: Cisco ASR9k, GSR 12000, 7600, 7500, 7200 VXR, 3800, 3700, 2800, 2600

Cisco Catalyst Switches: Catalyst 6500, 4000, 3550, 2900

IP Routing Protocols: BGP, OSPF, EIGRP, IGRP, RIP v1 & v2, IS-IS

MPLS: LDP, MPLS L3 and L2 VPN

Load Balancing: Cisco ACE 4700 series, F5 LTM

Firewalls: Cisco ASA 5500, Cisco PIX 500, checkpoint r75

LAN Switching: STP, IEEE 802.1Q, VTP, VLAN & Inter-VLAN routing, QoS

WAN/core: ATM, Frame-Relay, ISDN, PPP, HDLC

Optical infrastructure: SONET OC3-OC192, SDH, POS, PDH

IP Telephony: SIP, H.323, RTP, Voice Gateways, CCM, QoS

VoIP Devices: Cisco IP phones, Cisco 5500, 6500 series controller, Avaya 3000, 6000, 7200 series Controllers

Quality of service: CBWFQ, RED/WRED

Wireless Technology: Cisco AP, LWAP, Access Points, WCS

Ticketing software: ConnectWise, Remedy system

Management software: HP openview, Solar winds, PRTG Network Monitor

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

Cabling: CAT 5, CAT 5e, CAT 6, CAT 6a

Operating Systems: Windows Server 2008/8/7/Vista/XP, Nexus OS, Cat OS, Cisco IOS-XR, Linux, UNIX (Mac OS X)

Microsoft Office: Visio, Excel, PowerPoint, Project

PROFESSIONAL EXPERIENCE

Confidential, Westbury, NY

Network Engineer

Responsibilities:

• Offered Wireless Network Planning using MapInfo tool by identifying potential areas of interest and by deploying access points for best possible coverage and good signal strength.
• Performed troubleshooting on slow network connectivity issues, routing issues involving OSPF, BGP and identified the root cause of the issues.
• Handled the recovery, upgrade and back-up of router IOS.
• Done system testing with PPP, L2TP, STP, and ACLs enabled.
• Performed smart hand support by identifying the root cause of the hardware issues with switches, routers.
• Configured and troubleshot inter VLAN routing with 802.1Q trunking and L3 switches, VTP and Spanning tree.
• Configured RIPv2, OSPF and BGP in routers. Routing related tasks include providing Cisco router configuration and troubleshooting the configuration and installation issues.
• Designed rules (ACL, security policies) to ensure better security.
• Involved in assessment and security posture improvement in Palo Alto Firewalls.
• Monitored and maintained LAN/WAN networks using Snort and Sniffer trace.
• Provided third level infrastructure support and assisted in maintenance and troubleshooting of SCCM and client workstations.
• Continually looked for ways to optimize, improve and streamline software deployment process in order to ensure uninterrupted delivery to the users.
• Configured and tuned IPS endpoints with Palo Alto, Checkpoint and Juniper.
• Worked with SDL Threat Modeling tool and MetaSploit Penetration testing tool.
• Worked in F5 Big-IP Load Balancer environment to manage the traffic between 2 web servers in the cloud.
• Configured VLAN and enabled IP routing in order to allow restricted connections from some resources.
• Designed and implemented an IP addressing scheme with subnets for different departments.
• Designed network plan of routing policies with route maps, distribution lists, access-lists.
• Used DHCP to automatically assign reusable IP addresses to DHCP clients.

Environment: HP Pro Curve 5400 series switches, Cisco Routers, Cisco Switches, Check Point Firewall, Palo Alto, F5 Load Balancers, Opsware, Cisco Wi-Fi technologies, Avaya 3000, 6000, 7200 series Controllers, Cisco CLI, Microsoft Lync, VOIP, SIP, RTP, RADIUS, TACACS+, OSPF, BGP, VPN, MPLS.

Confidential, Wayne, NJ

Network Engineer

Responsibilities:

• Performed network implementation that includes configuration of routing protocols, leased lines, ISDN lines, VLANs and IOS installations.
• Troubleshot the network issues onsite and remotely, depending on the severity of the issues.
• Deployed and decommissioned the VLANs on core ASR 9K, Nexus 7K, 5K and its downstream devices.
• Had hands-on experience with WAN (ATM/Frame Relay), Routers, Switches and IP addressing.
• Worked with layer 2 switching technology architecture. Implemented L2 and L3 switching functionality, which includes the use of VLANS, STP, VTP and their functions as they relate to networking infrastructure requirements including internal and external treatment, configuration and security.
• Supported core network consisting of Cisco 7200 series routers running multi area OSPF.
• Configured EIGRP and OSPF as interior gateway protocols with route filtering and route redistribution. Troubleshot complex LAN/WAN infrastructure that include routing protocols EIGRP, OSPF and BGP.
• Responsible for all aspects of TCP/IP functionality across multiple enterprise environments.
• Performed OSPF, BGP, DHCP Profile, HSRP, IPV6, Bundle Ethernet implementation on ASR 9K redundant pair.
• Configured ASA 5500-X Series firewalls to provide highly secure and high performance connectivity between the site locations.
• Worked on Juniper SRX 5800 firewalls to create policies using J-Web User Interface.
• Performed Network Address Translation on Cisco ASA 8.2 and 8.3
• Used DHCP to automatically assign reusable IP addresses to DHCP clients.
• Performed the ACL request changes for various clients by collecting source and destination information from them.
• Created MOPS (Method of procedures) and sought the approval of peers to perform configuration changes.

Environment: Cisco Routers, Cisco Switches, Routing protocols, HSRP, VRRP, IPSEC VPN, VPN, QOS, ASA firewall, Load balancer, MPLS, VLANS, VTP, RSTP, ACL, NAT, IDS/IPS, Monitoring tools(PRTG, HP OpenView), SIP, RTP, RADIUS, TACACS+, Cisco Wi-Fi technologies, Juniper SRX, ASR 9000, Catalyst 6500, CRS, Cisco ASR Firewall, IPV6, Cisco IP phones

Confidential, Herndon, VA

Network Engineer

Responsibilities:

• Configured HSRP between VLANs, configuring Ether Channels, Port Channel on 6500 catalyst switch.
• Performed data center migration in Access, Distribution and Core layers.
• Configured Routing protocols such as RIP, OSPF, EIGRP, MPLS, static routing and policy based routing.
• Configured and troubleshot link state routing protocols like OSPF in single area and multiple areas.
• 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.
• Provided Technical Support and solutions for network problems.
• Implemented NAT solutions on WAN applications.
• Upgraded IOS, troubleshot network outages.
• Performed configuration and troubleshot EIGRP and BGP.
• Upgraded Cisco ASA 5510 firewalls using 6500/7600 catalyst modules for enhanced performance, security and reliability.
• Migrated IPv4 addresses to IPv6 addresses using mechanisms like Tunnel Broker, Transport Relay Translation (TRT), NAT64, DS-Lite and DNS64.
• Installed and configured DHCP server.
• Involved in troubleshooting of DHCP and other IP conflict problems.
• Configured ACLs (Standard, Extended and Named) to allow users all over the company to access different applications and blocking others.
• Participated in on call support to troubleshoot the configuration and installation issues.
• Displayed excellent troubleshooting skills and customer centric approach.

Environment: Cisco 3750/3550/3500/2960 Switches and Cisco 3640/12000/7200/3845/3600/2800 routers, Cisco Nexus7K/5K, 2248/3560/5020/6509 , Cisco ASA5510, Checkpoint, Controllers 6000, 3600, 3400, 650, Juniper SRX, Microsoft Lync, MPLS, VOIP, SIP, Cisco Unified Video Conferencing, Unix commands, IPV6, Cisco IP phones, Cisco 5500, 6500 series controller, Avaya 3000, 6000, 7200 series Controllers, Cisco IOS CLI.

Confidential

Network Engineer

Responsibilities:

• Performed Windows server 2003 and 2008 administration, desktop support and network maintenance.
• Managed 5000 user accounts and group policies for users belonging to various accounts such as Citibank using Active Directory server. Also managed Internet Information Services (IIS), Mail servers, File servers, DNS and DHCP servers.
• Troubleshot Lotus Notes and Exchange mailbox issues, software issues and network connectivity issues.
• Worked with Network Operations Center (NOC) by managing and monitoring LAN/WAN network services.
• Scheduled maintenance for routers/servers by running maintenance commands through SSH connections.
• Created Virtual Machine templates for Windows server 2003/2008 using VMware vSphere and cloned them.
• Created Microsoft Windows Installer packages using Wise Package studio and admin studio. Advertised and managed packages and collections in SCCM environment.
• Performed switching related tasks such as implementing VLANS, VTP, RSTP and Port security.
• Implemented security measures using ACL and configured NAT according to the connectivity requirement.
• Participated in design and implementation IPv4 subnetting in the office network.
• Provided 24/7 rotational on call supports for branch offices.
• Configured Routing protocols such as RIP, OSPF, EIGRP, static routing and policy based routing, infrastructure and configured the entire network Infrastructure devices including network printers.
• Won ‘Star Player Award’ for crucial contribution to ‘Butterfly Operation’ that restricted installation rights to all employees as they had installed licensed software without securing the license from the Client.

Environment: Cisco Routers, Cisco Switches, Routing protocols (OSPF, EIGRP), HSRP, VRRP, IPSEC VPN, SSL VPN, Cisco CLI, QOS, ASA firewall, IP Phones, Microsoft Lync, VoIP, ACE load balancer, MPLS, VLAN, VTP, ACL, SIP, RSTP, NAT, FCAPS, RADIUS, TACACS+, Cisco Access Points, Juniper SRX.

Confidential

Network Engineer

Responsibilities:

• Configured and managed IP routing using a combination of static routing and dynamic routing protocols like OSPF and EIGRP.
• Worked on PRTG Network monitoring tool to monitor and troubleshoot various issues in the network.
• Configured STP for switching loop prevention and VLANs for data and voice along with configuring port security for users connecting to the switches.
• Worked on issues related to static and dynamic routing protocols like RIP, EIGRP (Variance and unequal cost load balancing) and OSPF.
• Configured VLANs with IEEE 802.1q tagging, private VLANs, VTP on Cisco 4500 and 6500 series switches. Configured trunk groups, ether channels, and Spanning tree for creating Access/distribution and core layer switching architecture.
• Worked on issues related to VLAN, VTP and HSRP failovers.
• Created network diagrams and proper documentation for the network architecture.

Environment: Cisco 6509/3750/3550/3500/2950 switches, Cisco 7200/3845/3600/2800 routers, Checkpoint firewalls (SPLAT), Cisco IOS CLI, Net Flow, TACACS, EIGRP, RIP, OSPF, CSM, Ether Channels.