SUMMARY:

• 7 Plus years of Experience and having multiple Certifications Cisco (CCNA&CCNP), Experience in designing, architecting, deploying and troubleshooting Network & Security infrastructure on routers, switches (L2/L3) & firewalls of various vendor equipment.
• Expertise in Cisco Routing and Switching using 3600, 3700, 5300, 6500, 7600 Nexus 7k, 5k, 2k & Router 2600, 2800, 3600, 3800, 7200 ASR 9000,1000 series routers.
• Protocols Awareness: OSPF, EIGRP, HSRP, ACL, VTP, NAT/PAT, CDP, Dot1q, SSH, HTTP, HTTPS, NTP, SNMP, ARP, STP (802.1D), SNMP, DNS & DHCP.
• Expertise in Configuration of Virtual Local Area Networks (VLANS) using Cisco routers and multi - layer Switches and supporting STP, RSTP, PVST, RPVST along with trouble shooting of inter-VLAN routing and VLAN trunking using 802.1Q.
• Design and implement data center environments utilizing technology's such as Fabric Path, VPC+/VPC, FEX’s, Port Channel, STP, SVIs, VLANs including private, OSPF, BGP, VSM, VEM and vEthernet on Nexus hardware 5K, 2K (also B22) and 1Kv as well as IOS data center hardware Cisco Blade Switches, 7600 and 6500 series routing and switching.
• Extensively worked on Cisco catalyst 6509 and implemented VSS along with VDC and VPC on Nexus 5505, 7009 switches.
• Proficient in Cisco IOS for configuration & troubleshooting of routing protocols: MP-BGP, OSPF, LDP, EIGRP, RIP, BGP v4.
• Background in network design, including Wide Area Networking (WAN), Local Area Networking (LAN), Multiple Protocol Labeling Switching (MPLS), DS3 with Physical Labelling and IP Addressing.
• Proficiently implemented traffic filters using Standard and Extended access-lists, Distribute-Lists, Route Maps and route manipulation using Offset-list.
• Managed inventory of all network hardware, Management and Monitoring by use of SSH, Syslog, SNMP, NTP.
• Experience securing and managing remote access using various VPN technologies like IPSec, SSL, and GRE.
• Performed Load Balancing with Big IP/F5 - LTM 3900 and Cisco ACE load balancer
• Extensive knowledge in implementing and configuring F5 Big-IP LTM-3900, and 6900 Load balancers
• Experience in building and implementing access control lists depending on the needs of industry
• Worked on Checkpoint and Cisco ASA 5500 series Firewall providing support and configuring for NAT, PAT & advanced Firewall rules implementation. IPS on ASA’s with Botnet protection
• Implementing security policies using Cryptography, ACL, SDM, PIX Firewall, IPsec, VPN, and AAA Security on different series of routers.
• Experience in configuring and supporting VPN on Cisco VPN concentrators and 2811 routers
• Reviewing all changes to network configuration for technical accuracy and provide solutions to Multi-Protocol Network problems.
• Strong problem-analysis talent, driven by a global view/attention-to-detail approach. “Hands on” technical knowledge Experience with different Network Management Tools and Cisco works support 24 x 7 Network Operations Center
• Efficient at use of Microsoft VISIO/Office as technical documentation and presentation tools.

TECHNICAL SKILLS:

Operating System: DOS, Windows (95, 98, NT/2000, XP, Vista/7/8/10), Cisco IOS

IP Routing: RIPv1, RIPv2, BGP, OSPF, IS-IS, IGRP, EIGRP

Switching: VLANs, VTP, STP, RSTP Inter VLAN routing and Multi-Layer Switching, Layer3 Switches, Ether channels, Dot1Q, HSRP, GLBP

Communication Protocols: TCP/IP, UDP, DHCP, DNP, ICMP, SNMP, ARP, RARP, PPP, HDLC

Topologies: Frame Relay, ATM, T1, T3, OC3, OC12, OC48, Ethernet, Cable Modem, Wireless

Network Peripherals: Switches CISCO 2900, 3500, 3850 6800, Nexus Routers Cisco 2600, 7200, 7600, Juniper M & T Series, Cisco CRS-1, CRS3, GSR

Network Management Tools: Whatsup, MRTG, Confidential Open view, Cisco WAN manager and Cisco works 2000

AAA Architecture: TACACS+, RADIUS, Cisco ACS.

Sniffers: Ethereal (Wireshark)

Software: Microsoft Office 2013/10/7, MS Visio, C.

PROFESSIONAL EXPERIENCE:

Confidential, San Jose, CA

Sr. Network Engineer

Responsibilities:

• Design and implementation of Network Management and Security policies in the Campus Network.
• Worked on wireless networking hardware such as Cisco Wireless LAN Controller and AP 1200.
• Involved in design and implementation of Data Center Migration, worked on implementation strategies for the expansion of the MPLS VPN networks
• Implement, maintain Cisco Prime Wireless, Cisco LMS, Solarwinds
• Implemented HSRP on the Cisco 3550 Layer 3 switches and OSPF on 2 Cisco 3925 routers, the Layer 3 switch, 3 Cisco 3550 Switches, Cisco 3524XL switches for fail over.
• Configuration of firewalls 5520 series ASA for business to business connectivity and application of ACL rules for network traffic.
• Design/install/Configure Nexus 7k, 5k and 2k switches, PAN firewall and Netscaler Application load balancer.
• Configuration of Fabric path and connectivity between Nexus 5K and Nexus 7k
• Collaborated with the network engineers to identify areas of high risk that can be resolved using ISE
• Implementation of secure enclaves with Palo Alto and ASA firewalls
• Remote access and site-to-site VPN administration using Cisco ASA/ASR and Palo Alto
• Configuration and implementation of Juniper and Palo Alto firewalls.
• Worked with distributing loads across multiple carriers (AVPN, MPLS).
• Configuring various advanced features (Profiles, monitors, iRules, Redundancy, SSL Termination, Persistence, SNATs, HA on F5 BIGIP appliances SSL termination and initiation, Persistence, Digital Certificates, Executed various migration/upgrade projects across F5 and hands on with F5 BIGIP LTMs/EM.
• Troubleshoot and Worked with Security issues related to Cisco ASA/PIX, Checkpoint, IDS/IPS and Juniper Netscreen firewalls
• Experience with configuring Nexus 2000 Fabric Extender (FEX) which acts as a remote line card (module) for the Nexus 7000.
• Participated in the installation, configuration, and post installation daily operational tasks and configuration of the deployment of Cisco Nexus equipment
• Configured F5 Load balancers and monitored the Packet Flow in the Load balancers.
• Implementing and maintaining network monitoring systems (Cisco works and Confidential Open view) and experience with developing complex network design documentation and presentations using VISIO
• Installed and Trouble shoot Cisco call Manager 7.0 and 8.2.
• Cisco ASA/Checkpoint Firewall troubleshooting and policy change requests for new IP segments that either come on line or that may have been altered during various planned network changes on the network
• Woked with Juniper JUNOS operating system and working on M and MX series routers
• Design and Configuration of user policies and group policies on Active directory.
• Configuring routing protocols like EIGRP, RIP v2, OSPF & BGP and Cisco ACS protocols like RADIUS and TACACS.
• Configuring and Troubleshooting NetScreen Juniper firewalls 5GT, 208, SSG 5, 20, 140, 550, 550M and high end firewalls like ISG 1000, NS 5200 using NSM.
• Used DHCP to automatically assign reusable IP addresses to DHCP clients.
• Integrated VoIP with PSTN and set up voice Gateway ensuring QOS for Cisco based Voice over IP and CDR for voice call Accounting
• Implemented ACLs and authenticated (EIGRP, BGP) to ensure high security on the network.
• Installed Cisco Wireless NIC’s (network interface cards) for Desktop PC’s and installed Cisco WAPs (wireless access point) and Cisco Routers.
• Monitored and Tracked network response time using Cisco works 2000 LMS.
• Handled customer services like clearing and troubleshooting their network problems.
• Performed configuration and maintenance of Vlans using catalyst 6500.
• Worked on preparing technical documentations using Microsoft VISIO and Microsoft Office.
• Created Monitoring requirements around security (SNMP, syslog) for ASR1k, WLC, AP and NCS Etc.

Confidential, Alpharetta, GA

Sr. Network Engineer

Responsibilities:

• Responsible for designing and implementation of customer’s network and Security infrastructure.
• Involved in complete LAN, WAN, Extranet redesign (including IP address planning, designing, installation, pre configuration of network equipment, testing, and maintenance) in both Campus and Branch networks
• Converting Cisco 6500 IOS to Cisco Nexus NX-OS in the data center environment. working with Nexus 7010, 5020, 2148, 2248 devices
• Working with configuring Nexus 2000 Fabric Extender (FEX) which acts as a remote line card (module) for the Nexus 5000
• Responsible for implementing, supporting, and maintaining 24x7 network services.
• Coordinated efforts with Engineer's to ensure all network devices conformed to defined network standards.
• Support, monitor and manage the IP network.
• Packet capturing, troubleshooting on network problems with Wireshark, identifying and fixing problems.
• Configured and troubleshooting HSRP, BGP, OSPF, EIGRP, MPLS WAN, QoS and Route Maps.
• Configure BGP features such as as-override, Local pre, EBGP load sharing on client connections.
• Configured and resolved various OSPF issues in an OSPF multi area environment between multiple branch routers.
• Configured OSPF for Stub area, Totally Stubby Area and NSSA. Executed BPDU Guard, port-fast, uplink fast and other spanning tree features on various layers 2 and layer 3 switches.
• Performed redistribution with OSPF, EIGRP to enable communication with backbone.
• Troubleshoot connectivity issues involving VLAN's, OSPF, and QoS.
• Configured VLANs with 802.1q tagging. Configured Trunk groups, ether channels, and Spanning tree for creating Access/distribution and core layer switching architecture.
• Implemented, configured redundancy protocols HSRP, VRRP, GLBP for Default Gateway Redundancy.
• Configure the Cisco CRS-1 Routing System, back out of configuration changes, and restore older versions of a configuration.
• Managed the Cisco network infrastructure using Cisco Prime.
• Supporting accounts on implementation and maintenance of DDI/IPAM Servers on various platforms.
• Configured static NAT, dynamic NAT, dynamic NAT overloading.
• Back up a Cisco IOS to a TFTP server and Upgraded and restored a Cisco IOS from TFTP server.
• Designing and installing new branch network systems. Resolving network issues, running test scripts and preparing network documentation.
• Perform network management using Open View and Network Node Manager (NNM).
• Establishing VPN Tunnels using IPSec encryption standards and also configuring and implementing site-to-site VPN, Remote VPN.
• Built an accruing network via MPLS circuits to split the trusted and un-trusted traffic via a Cisco ASR.
• Performed Administration and Deployment of CUCM, Unity Connection, Presence, DSPFarm Routers.
• Upgrade to Cisco Unified Attendant Console 8.6 to 9.x,supported Customer Cisco Data Center environment.
• Maintain and administer UCCE cluster with CUSP Routing module.
• Configured the ASR to use the VRF routing functions to completely split the traffic through the network.
• Performed Migration from Cisco ACE Load Balancers to F5 LTM.
• Worked on F5 BIG-IP LTM 8900, configured profiles, provided and ensured high availability.
• Worked on F5 and CSM load balancers deploying many load balancing techniques with multiple components for efficient performance.
• Involved in Configuration of Access lists (ACL) on ASA firewall for the proper network routing for the B2Bnetwork connectivity.
• Worked with Cisco 2800, 2900, 3900, 7200, 7600, ASR9000, CRS, Cisco Catalyst Switch 6500, 4500, 3550, 3850, Nexus 7k and 5k, T1 Controllers, Cisco ASA 5510, Cisco ACE Load Balancer and F5 Load Balancer.

Confidential, Richmond, VA

Sr. Network Support Engineer

Responsibilities:

• Configure and install Cisco 3560 switches
• Configure and install Cisco 1900 and 2800 series routers
• Configure and install network monitoring tools such as Sniffers
• Working knowledge of Server and Desktop Operating systems such as Windows 7 and XP, Linux, and IBM OS2
• Working knowledge of Personal Computing (PC) and Server hardware and core software applications to be able to identify if a problem is network related or device related, using TACACS, SSH, Telnet, ping, TCP/IP
• Work with Telecommunication Managed Services Vendors (MSV) to troubleshoot voice and data circuits, CSU/DSU's, Muxes, Network Interface Units (NIU); using system knowledge, test tools and diagnostic devices and loop back plugs
• Manage and use Network Diagnostic Tools such as T-BERD & Fluke testers to troubleshoot and isolate complex network problems
• Deploy and troubleshoot Wi-Fi devices in an Enterprise Network
• Install, configure and troubleshoot various types of servers, Cisco equipment such as routers, 2K switches, 5K switches, 7K switches, Juniper gateways and F5 firewalls
• Produce clear, concise and accurate documentation for use by team members or internal customers, such as floor plans, material lists, spreadsheets, cable tags, equipment labels and rack elevation drawings
• Proficient in MS Word, MS Excel, MS Visio, MS PowerPoint, MS Outlook, MS Lync
• Provide detailed site surveys, specifying the types of materials needed (such as cables, racks, power, cooling (Air Conditioning), etc.), be able to supply the correct footages/lengths and types of cables needed, and provide an accurate count of material quantities needed

Confidential, Richmond, VA

Network Engineer

Responsibilities:

• Support Network Technicians as they require training & support for problem resolution including performing diagnostics, & configuring network devices.
• Configuring of IP Allocation and sub netting for all applications and servers and other needs throughout company using FLSM, VLSM addressing.
• Involved in the configuration & troubleshooting of routing protocols: BGP, OSPF, EIGRP and RIP.
• Tuned BGP internal and external peers with manipulation of attributes such as metric, origin and local Preference.
• Provided redundancy in a multi homed Border Gateway Protocol (BGP) network by tunings AS-path.
• Supporting EIGRP and BGP based on the network by resolving level 2 & 3 problems of internal teams & external customers of all locations.
• Configured OSPF redistribution and authentication with type 3 LSA filtering and to prevent LSA flooding.
• Configured OSPF over frame relay networks for NBMA and point to multipoint strategies.
• Performing troubleshooting on slow network connectivity issues, routing issues that involves OSPF, BGP and identifying the root cause of the issues.
• Maintained complex LAN/WAN networks with several VLANS and provided support for routing protocols and also providing secure sessions over internet using IPSec and SSL encryption.
• Experience in WAN connectivity using Cisco routers by using T1, T3 and frame relay connections and its troubleshooting issues.
• Design and implementation of the LAN IP infrastructure using Layer 2 / Layer 3 switching, STP, Gigabit Ethernet and Trunking / channelling technologies.
• Responsible for maintenance and utilization of VLANs, Spanning-tree, HSRP, VTP of the switched multi-layer backbone with catalyst switches.
• Configured VLAN's on Switches for Wireless Access Points.
• Configured Wireless Access Points in order to control them with RADIUS server.
• Worked on FTP, HTTP, DNS, DHCP servers in windows server-client environment with resource allocation to desired Virtual LANs of network.
• Apache Web Server & MRTG, BIND DNS Server configuration and optimization over UNIX and Active directory implementation of Windows 2003 Server.
• Implemented redundant Load balancing technique with Internet applications for switches and routers.
• Configured Cisco IOS Feature Set, NAT and Simple Network Management Protocol (SNMP) for Network Security implementation.
• Worked on Juniper J series J 230, M 320 routers and EX 3200 series switch.
• Involved in Configuring and implementing of Composite Network models consists of Cisco7600, 7200, 3900, 3800 series routers and Cisco 2950, 3500, 5000, 6500 series switches.