SUMMARY

• 7 years of experience in capacity planning, designing and implementing network architecture with an understanding of application level security.
• A multi - service enterprise networkmonitoring and management, ensuring availability and uptime of systems andnetworkto meet SLA’s.
• Experience in configuring Cisco, Juniper and Brocade products and working in multi-vendor environment.
• Expertise in designing and deploying VoIP solutions.
• Strong experience supporting Voice over IP solutions for an enterprise network with centralized Cisco Call Manager and Call Manager Express systems.
• Solid understanding and experience configuring and troubleshooting H323, SCCP, MGCP, SIP, RTP and SS7 protocols.
• Configuring of Cisco routers and L2 / L3 switches, Firewalls and Load balancers.
• Configuration of network protocols like RIP, EIGRP, IGRP, OSPF, BGP, MPLS, TCP/IP stack.
• Solid understanding and configuration of switching protocols like STP, VLAN, and VTP.
• Implementation and troubleshooting of MPLS LDP, MPLS VPN’s. Expert Knowledge about MPLS VPN’s.
• Solid understanding and hands-on experience on Network Routing, Switching, IP Addressing, Sub netting, VLSM and ARP, reverse & proxy ARP, Ping Concepts
• Strong understanding of configuring and supporting Windows OS technology including AD Forests, Domains, Trusts, Site topology, Replication, LDAP Directories, DHCP, DNS, Group Policy, TCP/IP, IIS.
• Experience with Windows Server 2000, 2003,2007,2010,2012 Active Directory.
• Experience configuring firewalls; ASA 5520 Firewall and load balancers; F5 load balancer
• Implemented WAN/Core based on ATM & Frame Relay on Optical SONET infrastructure. Worked on VoIP on point-to-point &FR PVC’s with Traffic Shaping.
• Solid understanding of tunneling protocols, IPSec and GRE tunnels.
• Solid understanding and experience with Cisco VoIP phones, Cisco Unified Call Manager & CUE.
• In-depth expertise in the analysis, implementation, troubleshooting & documentation of LAN/WAN architecture.
• In-depth experience in measuring network performance and monitoring through tools like Wire Shark, Open view, NNM, Net flow, NNM ISPi, Solarwinds, Cisco Works.
• Installing configuring and troubleshooting DNS and DHCP servers in Microsoft Client/Server environment
• Hands on experience on configuring VPN 3030 concentrator and VPN clients.
• Experience in configuring IP Multicast, STP, VTP, HSRP, GLBP and redistribution between routing protocols troubleshooting them.
• Abreast with simulators like OPNET and QUALNET.
• Experience in configuring Cisco routers and working in multi-vendor environment
• Router platforms series: 1800, 1900, 2600, 2800, 3700, 3800, 7200, 7300, 7500
• Switch platforms include: 2900, 3500, 3650, 3750, 4000, 4500, 4948, 5500, 6500
• Programming in C, Unix/Linux, Perl, Python scripting.
• Excellent oral and written communications skills.
• Strong analytical and organizational skills, including the proven ability to adapt to a dynamic project environment and manage multiple projects.
• Self-motivated and team player, with commendable leadership qualities.

TECHNICAL SKILLS

Hardware: Cisco 2800/2600/7301/7200 series routers, Cisco 6500/4500/3750/2900 series switches, Poe switches 3640, Cisco Firewall ASA 5540/5520 (Adaptive security appliance), PIX, NEXUS 7K & 1K, Cisco VoIP phones, VG224 Gateways.

Networking Protocols: TCP/IP, PPP, ISDN, VLAN, VTP, STP, 802.11 a/b/g/n, MESH, RIP,RTP, RTCP, SS7, MGCP, H323, EIGRP, OSPF, BGP, IGRP, SNMP, FTP, Telnet, SMTP, POP, DHCP, HDLC, HSRP Frame Relay, LDP/TDP, MPLS VPN, VoIP, SIP, RTP, RTSP, LACP, X-LITE, IPSEC, GRE

LAN Technologies: Ethernet, VLAN, Inter-VLAN, Routing, VTP, STP, RSTP

WAN Technologies: Frame Relay, ATM, ISDN, PPP, HDLC

OS Products/Services: CAT OS, Cisco IOS, DNS, DHCP, Windows Server 2003/2008, Windows 98/XP/Vista/7, UNIX (Solaris), LINUX (Red hat, Debian), VMware, Microsoft Exchange 2003/2007

Software/Tools: MS Office Suite, Microsoft Visio, MS Project, Active Directory

Network Management: SNMP, MRTG, Ethereal Sniffer, Wire shark, Net flow, NNM, NNM iSPI’s, TCP DumpNETVCR, Log logic, Cisco Works

Databases: SQL, MySQL, SQLITE3, MS Access

PROFESSIONAL EXPERIENCE

Confidential, VA

Sr. Network Engineer

Responsibilities:

• Worked on Cisco GSR, Cisco 7200VXR and Cisco 7600 series routers.
• In-depth knowledge and hands-on experience in Tier II ISP Routing Policies, Network Architecture, IP Subnetting, IPSec VLSM, TCP/IP, NAT, DHCP, DNS, T1 / FT3 / T3 Sonet POS OCX / GigE circuits, Firewalls.
• For MPLS/VPN forvarious ISPs core operation of OSPF as a core IGP in single area and multi area OSPF design, Label Distribution protocol LDP, iBGP full meshed and through Route Reflector for vpnv4 routing and ipv4 routing for network management routes.
• Authentication was tested for OSPF, LDP and BGP.
• Worked on utilities such as NNM, ISPI, and Net flow.
• Generalrouting table and per vrf routing table segregation,verified Route Distinguishers, Route Targets, Max routes per vrf.
• Cisco Call manager / Unity /IPCC Express.
• Working with legacy PBX systems to deploy VoIP solutions and configuring VoIP traffic flows.
• Enterprise infrastructure management through Nagios.
• Troubleshoot network problems using SIP protocol analyzers.
• Configure SIP Trunking for and Re-routePSTN Traffic to SIP.
• LAN monitoring and management using Cisco Works.
• Configuring MPLS as the core carrier switch protocol using the RPM blades, Cisco 7200 VXR routers
• Assisting the operations team in the VPN (MPLS RFC 2547bis) configuration and troubleshooting.
• BGP session establishment/Authentication/Resiliency and exchange of routes and in-depth verification of required features such as Max number of prefix, Advertise interval, Prefix listAS-Override, ORF with CE as the sender and PE as the receiver,
• Transparent passage of BGP community values as set by the CE, default originate, Allow-as, AS Prepend ASN,EBGP session authentication.
• Configured a Created TCP/ IP flows for performance measurements and troubleshoot OSPF, BGP, EIGRP
• Assist the Operations team in multi homed BGP Configuration for Internet peering, create detailed configuration documents and FAQ’s
• Assist the Operations team in multi area OSPF configuration.
• Configuration and change management of PE routers.
• Interacting with the client and assisting the customer in CE configuration,
• BGP Route Reflectors deployment
• MPLS VPNs testing and configurations for Various ISP’s
• Removal of BGP from the core
• Tested BGP features such as as-override, Local pref, EIBGP load balancing
• Measuring performance metrics using network-monitoring tools like Wire Shark, NETVCR and Net flow.
• Created QOS profiles for CBWFQ using LLQ for voice.
• Identified IOS related bugs based on appropriate release notes and past history
• Helped customers in troubleshooting issues related to connectivity, STP, Vlans, Trucking, VTP, Layer 2/3 switching, Ether channels, Inter-Vlanrouting, log messages, high CPU utilization and parameters that can degrade performance of network
• Responded to network problems as an expert representing the managed services provider.

Confidential, MD

Network Engineer

Responsibilities:

• Configure, monitor, and troubleshoot Cisco Catalyst 3845 routers and Cisco Catalyst 3550 and 3750 switches in Windows Active Directory Environment.
• Firmware update, configuring interfaces on appliances, SNMP discovery, HP Network Automation, Network Node Manager.
• Active Directory administrator. Create user accounts, mailboxes, and groups. Password resets and unlocks user accounts.
• Measuring Bandwidths and other performance metrics using various network monitoring tools such as NNM, Cisico Works and making optimizations to meet SLA’s
• Create site to site GRE tunnels to support multiple networks. Configure, operate and maintain EIGRP protocols. Create and maintain access-lists. Distribute and redistribute traffic via EIGRP. Set up static IP routes. Work with multicast traffic.
• Monitoring network and services through Solarwinds.
• Troubleshooting and installation of Cisco call manager equipment and network devices.
• Create route-maps to redistribute static routes into EIGRP
• Work with SSH, Telnet, SNMP, VLANs, SFPs, port activations
• Troubleshot TCP/IP issues and worked with Layer 2 and Layer 3 Technology
• Configure QoS for voice, data, and Video Teleconference traffic. Configure policy-maps, class-maps, and service-policy outputs on tunnels to support different types of services.
• Work with Cisco Unified Call Manager. Configure Cisco Call Manager Express on the local router. Configure Telephony Service-Ephone, Ephone-ds, and h323. Configure a DHCP pool to support VOIP IPs on the local router.
• Troubleshoot and fault isolate customer problems with hosted PBX VoIP services
• PerformSIP, TCP/IP and RTP troubleshooting.
• Configuration and troubleshooting of MGCP, H323, and SIP.

Confidential, VA

System and Network Administrator

Responsibilities:

• Unix and Windows System Administration, TCP/IP Network Administration, Systems Capacity Planning, implementing High Availability System Configurations, co-ordination and Commissioning of Internet Setups (DNS, TCP/IP, NFS, NIS, NIS+, LDAP, SMTP, FTP).
• Configuring Firewalls, WAP’s and LWAP’s.
• Creating users, profiles, batch files, setting up security hierarchy, taking backups, experience in installation & setting up Remote access server (RAS) & configuring user access restrictions, setting up HTTP and FTP services.
• Scheduling Backup and Restoration Using VERITAS Netback up.
• Experience in configuration and Maintenance of DSL, ISDN PRI/BRI, SONET, T1, Frame Relay, Digital Data circuits, modems.
• Cisco Unified Communications Systems, including Call Manager / Unified Communications Manager 6.x, 7.x Unity
• Management and troubleshooting of Cisco Analog and Digital voice gateways and devices.
• Gateway Configuration, Cisco Unified IP Phone Configuration, Trunk Configuration
• Configuration of Voice Gateways, Gatekeepers.
• Experience in installation and maintenance of NAS
• Experience in configuring VPN tunnels.
• Experience in TCP/IP, IPX/SPX, SNA, NETBIOS, Ethernet/Token ring
• Proficient in integration of many OS and products and is well versed with the industry best practices of administration, Network Designing, implementation, testing and assembling.
• Experience in Project implementation, Server migration and implementation.
• Network monitoring using NNM and Net flow and recording observations.
• Planning for Disaster recoveries.
• Experience in system integration, system installation and configuration.
• Excellent experience in integration various systems in Heterogeneous environments.
• Many times restored files on NT and UNIX servers on request of development team, accounting dept and clients.
• Configuring and Managing Mail servers using send mail and installing the Web logic application Server.
• Adding and upgrading the hardware for different servers.
• Proficient in Help Desk Support.
• Installing packages and patches.
• Experience working with Cisco Call Manager.
• Disk space management, remote administration, and Performance monitoring and device configuration. Troubleshooting and maintaining the systems and help the users with developmental problems.
• Team player with good management, analytical, communication and interpersonal skills.
• Proficient in backup, customer support, restoration of data, performance tuning, configuring printers, modems, Network printers & print servers.

Confidential

Network Engineer

Responsibilities:

• Install, maintain, and troubleshoot Cisco VPN for remote access to the corporatenetwork
• Support and install WAN technologies: Frame Relay, ATM, and MPLS
• Managing DNS, IP, VLAN assignments throughout the Data Center and troubleshooting BGP/OSPF routing issues.
• Design multi-router/peer Cisco/Brocade BGPnetwork, in process of Cisco MPLS L2/L3VPN transportnetworkdesign.
• Configuring and troubleshooting Layer 1 and 2 protocols: PPP, RIP, EIGRP, OSPF, BGP, IP Multicast, Frame Relay, MPLS in Ethernet environments.
• Designed and implemented large scale installations of PBX systems TDM andVoIP
• Implement End-to-End QoS, including Marking, Shaping, and Policing and Queuing strategies to ensure network reliability and efficiency for Voice, Video and DataNetwork to meet the SLA’s.
• Monitored LAN/WAN and device activities utilizing Cisco Works, SNMP, HP Open View,
• Managednetworksecurity processes using PIX and ASA firewalls
• Configured MPLS traffic engineering.

Confidential

Network Engineer

Responsibilities:

• Support various Routers like 2600/3600/7200/7200 VXR and 12416, 12816 series routers.
• LAN/WAN installations, configuration of Routers, Switches.
• Hands-on experience with WAN (ATM/Frame Relay), Routers, Switches, TCP/IP, Routing Protocols (BGP/OSPF), ISDN Dial Backup and IP addressing.
• Worked on Route-Reflectors in a clustering environment.
• Assisted in Configuration of Active Directory, DNS and DHCP for an enterprise network
• Experience in MPLS, OSPF, EIGRP, MP-BGP. Configured IP RIP, BGP and OSPF routing.
• Configured IP access filter policies.
• WAN Infrastructure running OSPF & BGP as core routing protocol.
• Tested and implemented various BGP attributes such as Local Preference, MED, AS-PATH, Community, Extended community.
• Maintained the regression test beds for various development test environments. Created QOS profiles using CBWFQ.
• Expertise in configuring EIGRP, Frame-relay, T1 circuit, CBWFQ (QoS), NAT, BGP, LAN-to-LAN tunnel
• Designed and configured a network with switches (6500and 7600 series) all running fiber optic carrying data, video and VoIP.
• Measuring performance metrics using network-monitoring tools like Wire Shark, NETVCR and Net flow.
• Configured protocols on the network included OSPF, HSRP, ether channel, VLAN, NAT, static routing, mutual redistribution, 802.1q, RIP and policy based routing
• Also configured spanning tree and VLAN on L2 LAN switches.
• Troubleshooting connectivity issues, Hardware /Software issues, IOS Upgrades, POST Failures, Bus Errors, Parity Errors, VLans, VTP and HSRP
• Configured data network to support voice including VoIP VLAN, inter-VLan routing and QoS tagging.
• Configured a Created TCP/ IP flows for performance measurements and troubleshoot OSPF, BGP, and EIGRP.
• Open TAC case with Cisco and interact with the Engineer’s to solve to existing problems.
• Recommend proper hardware and work on the budget proposal to the customers
• Work on Data, VoIP, security as well as wireless installations and technology support.
• Present customers with the solutions on their existing problems and implement those solutions within a specified time frame
• Lead for the network re-architecture efforts to facilitate better product delivery to customers.
• Visit various sites on call to troubleshoot the customer issues and maintain the health of network in terms of both hardware and software.