SUMMARY

• Over 6 years of experience as a Networking Professional in areas concerned with network design, implementation, operation and troubleshooting enterprise data networks.
• Experience with Cisco Catalyst 2960, 3560, 3750, 4500 and 6500 series switches.
• Proficiency in configuring different layer 2 technologies which includes Virtual Local Area Network (VLANS), inter - vlan routing, STP, RSTP, VTP, Ether channel and Port Security.
• Working experience on cisco nexus 2k, 5k and 7k series switches.
• Experience in installing, configuring and troubleshooting juniper switches EX2200, EX2500, EX3200 and EX4200 series.
• Good knowledge in the usage of ether channels for effective usage of bandwidth with aggregation protocols LACP and PAGP.
• Experience in implementing redundancy gateway protocols which includes HSRP, VRRP and GLBP.
• Working experience with 2600, 2800, 3600, 3800 and 7200 series routers and juniper MX and T series routers.
• Expertise in configuring IP routing protocols which includes EIGRP, OSPF and BGP over Cisco routers in production environment.
• Experience in configuring security policies including NAT/PAT, VPN and ACL’s.
• Experience in Network Cabling, IP addressing and Subnetting with Variable Length Subnet Masking (VLSM), Route Summarization and Route Redistribution.
• Hands on experience on configuring Cisco ASA 5540, 5580 firewalls.
• Experience in installing, configuring and troubleshooting Checkpoint Firewalls
• Experience in using different area types in OSPF which includes SA,TSA,NSSA and Virtual Links
• Good knowledge on juniper SRX240, SRX220 and SRX550 series Firewalls.
• Experience in VPN technologies such as IPSEC (Site to Site and Client to Site) and Secure Socket Layer (SSL) VPN
• Hands on experience in configuring Cisco router as ZBF and Intrusion Prevention System (IPS).
• Good understanding of Palo Alto firewalls which includes PA 5000 and PA 3000 series.
• Configuring F5 BIG-IP LTM-3600 load balancers.
• Configured Clientless-Secure Socket Layer (SSL) VPN using self-signed certificates.
• Hands-on-experience in using Cisco's Adaptive Security Device Manager (ASDM) to manage the Cisco ASA security appliances and Smart dashboard for checkpoint firewalls.
• Good experience in using NetScaler to provide level 4 load balancing
• Improved network capabilities and reliability by evaluating, testing, purchasing and implementing new SONET, SDH, DWDM, IP/MPLS, Ethernet and Wireless technologies.
• Experience with Synchronous Optical Networking (SONET) over optical fiber.
• Good knowledge in the field of Cryptography.
• Analyzed different types of attacks on Secure Socket Layer/ Transport Layer Security (SSL/TLS) which includes Crime, Beast, Breach and Time attacks.
• Evaluated the use of SSL against Man-in-the-Middle attack in android platform and provided some countermeasures to reduce it.
• Alarms monitored for SONET circuits including T1’s and T3’s.
• Troubleshooter and resolved computerhardwareand software issuesescalated from customer support and other departments with a 100%success rate.
• Maintaining and updating inventory of all network hardware, Management and monitoring by use of SSH, SYSLOG, SNMP.
• Experience in network troubleshooting and analysis using Wireshark.
• Experience using Microsoft Visio to create and update network diagrams.
• Possess strong network troubleshooting, interpersonal and communication skills.

TECHNICAL SKILLS

LAN Technologies: Ethernet, Fast Ethernet, Gigabit Ethernet, LWAPs.

WAN Technologies: HDLC, PPP, MPLS, Channelized links (E1/T1/E2/T2).

Routing Protocols: OSPF, EIGRP, BGP, RIP v1/v2, Route redistribution, Route filtering, Route Maps, Summarization, Static route.

Routers dealt with: Cisco 2600, 2800, 3600, 3800, 7200 series, Juniper MX series and T series routers.

Switching Technologies: VLANs, Inter VLAN routing and Port Channels, VTP, Spanning Tree Protocols like PVST+, RSTP+, Multi-Layer Switching, Port security.

Switches dealt: Nexus 2000, 5000, 7000 series; Cisco catalyst 2960, 3560, 3750, 4500 and 6500 series.

Network Security Technologies: Cisco ASA Firewalls, Juniper SRX Firewall, Palo Alto firewall PA 5000, 3000, Check points, Access Control Lists, IPsec, SSL, IDS, and IPS.

Load Balancers: F5 Network (Big-IP) LTM 3600.

Redundancy Protocols: HSRP, GLBP, VRRP

Wireless Controllers: Cisco 4400, 5500

Access Points: Cisco 1242, 2400 and 3500

VPN Technologies: GRE Tunneling, Remote Access VPN, Site-to-Site VPN, SSL VPN.

Tools: Used: Cisco’s ASDM, Dashboard, Wireshark, Syslog, Solarwinds, Real time log viewer and putty.

Operating Systems: Windows, Unix, Linux.

Virtual Technology: VMware, Citrix, Microsoft Hyper-V

PROFESSIONAL EXPERIENCE

Confidential, Herndon, VA

Network Engineer

Responsibilities:

• Configuration and management of Cisco nexus 2k, 5k and 7k series switches and Cisco 3560, 3750, 6500 series and 2800, 3600, 7200 routers, ASA, Checkpoint firewall, Palo Alto and F5 load balancer.
• Redistributed sites from OSPF to BGP.
• Worked on load balancer and provided solutions for many network related issues.
• Configuring and implementing prefix-lists, route maps and ether channels.
• Configured F5 load balancer LTM & GTM.
• Involved in installing and configuring PIX 515E, 506E firewalls.
• Performing the configuration and troubleshooting of routing protocols such as OSPF and BGP.
• Configuration and administration of cisco and juniper routers and switches.
• Configured redundancy protocols such as HSRP and GLBP.
• Deployment of enterprise firewalls (Palo Alto network, Cisco ASA, Checkpoint) in production environment.
• Implemented and configured OSPF and BGP.
• Configured inter-vlan routing, redistribution, access-control lists and Network Address Translation (NAT)
• Configuring Multi-Protocol Layer Switching (MPLS).
• Configured client VPN technologies which includes Cisco VPN client via IPSEC.
• Installation, maintenance and troubleshooting LAN/WAN (Frame Relay, NAT, DHCP, TCP/IP).
• Modified OSPF link costs to route traffic in different direction and to reduce delay, bandwidth across the links.
• Involved in configuration of access-control lists on juniper and Palo Alto firewalls for proper network routing and B2B connectivity.
• Configured different OSPF area types which includes stub area, TSA, NSSA and virtual links.
• Secured network using AAA (Authentication, Authorization and Accounting)
• Configured Juniper SRX series firewalls such as SRX240, SRX220 and SRX550
• Worked on Palo Alto Firewalls including PA 5000 and PA 3000 series.
• Configured BPDU guard, Port fast, Uplink fast and other spanning tree features.
• Negotiate VPN tunnels using IPSEC encryption standards and also configured and implemented site-to-site and remote-to-site VPN.
• Troubleshooter and resolved computerhardwareand software issuesescalated from customer support and other departments with a 100%success rate.
• Hardwarelayer is an Internet Protocol based Set Top Box. The transport stream carrier is a CAT-5cable. RJ-45 interface is provided to receive it.
• Installed and configured networkhardwareand software
• Worked in Wireless technologies: 802.11 a/b/g/n
• Provided network troubleshooting and support
• Good experience in using NetScaler to provide level 4 load balancing
• Monitored network traffic and solved performance issues in applications using Solarwinds.

Environment: Cisco Routers: 7200, 3600, 2800; Cisco catalyst switches: 3560, 3750, 6500; Nexus: 2000, 5000, 7000 series switches; Redundancy protocols: HSRP, GLBP; Inter-vlan routing, Port-fast, STP, VTP, RSTP, ACL’s; Routing protocols: OSPF, BGP; Cisco ASA, Checkpoint firewalls, Juniper SRX 240, SRX220, SRX550, Palo Alto Firewalls PA5000, PA3000; Network Security: NAT, PAT, IPSEC, GRE, VPN; Load balancer: BIG-IP F5; Ethernet, Fast Ethernet, Gigabit Ethernet, Fiber optic; solar winds, Citrix NetScaler

Confidential, Jacksonville, FL

Network Engineer

Responsibilities:

• Configured routing protocols such as EIGRP and BGP on 3600, 3800 and 7200 cisco routers.
• Configured VLAN’s and implemented inter-vlan routing for users in different departments.
• Maintained redundancy on Cisco 2600, 2800, 3600 and 3800 routers by using redundancy protocol HSRP.
• Worked on Checkpoint firewalls and configured access-policies.
• Involved in configuring security policies including NAT, PAT, VPN, Route-maps and Access-control lists.
• Configured Virtual Private Networks between Site-to-Site and Site-to-Remote VPN.
• Hands on experience on Juniper EX switches which includes EX2200, EX2500, EX3200 and EX4200 Series.
• Worked on Cisco ASA Firewalls and monitored flow traffic, troubleshooting hardware and network related problems using Smart View tracker.
• Performed IOS upgrades on Catalyst switches 3560, 3750, 4500, 6500 and 2500, 2800, 3600, 3800, 7200 routers.
• Worked on Nexus switches such as 2000, 5000 and 7000 series
• Coordinating with vendors for creating, modifying firewall and NAT rules and maintaining Site-to-Site and Secure Socket Layer (SSL) VPN.
• Designed WAN structure to prevent single point of failure in case of link failure.
• Been involved in providing technical assistance for LAN/WAN management and complex customer issues.
• Provided support for troubleshooting and resolving customer reported issues.
• Provided support for global network including T1/T3, ATM connections using HDLC, Frame Relay on Cisco 2600 series routers.
• Involved in configuring F5 BIG-IP LTM 3600 load balancers.
• Experience in maintenance and troubleshooting of connectivity problems using PING, Traceroute.
• Hands on experience in configuring Cisco ASA by using Cisco’s Adaptive Security Device Manager (ASDM).
• Excellent troubleshooting knowledge on T1, T3, OC-3 and OC-12.
• Monitored remote sites using network management tools, helped LAN administrator with backbone connection and connectivity issues and other responsibilities included documentation and support other teams.

Environment: Cisco Routers: 7200, 3800, 3600, 2800, 2500; Cisco Catalyst switches: 3560, 3750, 4500, 6500; Nexus: 2000, 5000, 7000 series switches; Juniper switches: EX2200, EX2500, EX3200 and EX4200; Routing protocols: EIGRP, OSPF, BGP; Redundancy protocol: HSRP; Vlans, inter-vlan routing, STP, VTP, RSTP, PVST, NAT, PAT, ACL, Route-maps, Route redistribution, Cisco ASA, Checkpoint firewall; Load balancer: BIG-IP F5; VPN: IPSEC, SSL VPN; Tools: Cisco’s ASDM, Wireshark, MS Visio.

Confidential, San Francisco, CA

Junior Network Engineer

Responsibilities:

• Configured IP routing protocols such as RIPv2 and OSPF on 2600, 2900, 3600 and 3800 series Cisco routers.
• Configured VLANS using Cisco routers and multilayer switches and supporting STP, RSTP, PVST along with troubleshooting on inter-vlan routing and VLAN trunking protocol 802.1Q.
• Implemented traffic rules on cisco routers using Standard and Extended Access-Control Lists.
• Worked on installation, maintenance and troubleshooting of LAN/WAN (Frame Relay, NAT, DHCP, TCP/IP).
• Worked in configuring CSU/DSU devices and also helped troubleshooting CSU/DSU devices.
• Involved in troubleshooting of DNS, DHCP and other IP conflict problems.
• Worked on IPv4 addressing and divided a network into different sizes using Variable Length Subnet Masks (VLSM).
• Involved in troubleshooting Ip addressing problems and updating IOS images using TFTP.
• Involved in troubleshooting network problems using Ping, CiscoCLI, tracert and telnet.
• Performed and technically documented various test results on lab tests conducted.
• Troubleshoot problems on day-to-day basis and provided solutions to fix the problems.
• Involved in troubleshooting and resolved problems related to the networking and server environments.
• Used Network monitoring tool to manage, monitor, and troubleshoot the network.
• Documented customer database which includes ip address, password, interface and network diagrams.

Environment: Cisco routers: 3800, 3600, 2900, 2600; cisco catalyst switches: 3560, 3750; Routing protocols: RIPv2, OSPF; Inter-vlan routing, 802.1Q, ACL, STP, RSTP, PVST, VLSM, HSRP.

Confidential

Network Support Engineer

Responsibilities:

• Involved in troubleshooting of complex LAN/WAN infrastructure including ip routing protocol EIGRP.
• Configured Vlan and implemented inter-vlan routing.
• Provide operational support across multiple hardware problems like windows server 2003.
• Handled Day-to-Day troubleshooting for the end users on windows and exchange related issues.
• Provided IP address management using Subnetting and Variable Length Subnet Mask (VLSM).
• Implemented Spanning Tree Protocol (STP) to avoid looping in switching environment.
• Configured Access-Control Lists (ACL) to allow or block users to access different applications.
• Assisted in configuring new network infrastructure for their branches.
• Provided support for the installation and configuration of network devices.

Environment: Cisco routers 2900, 2600; Routing Protocols: RIPv2, EIGRP; STP, Inter-vlan routing, VLSM.