PROFESSIONAL SUMMARY:

• 8 Years of professional experience with Cisco Certified Network Engineer, Performing Network analysis, Design, Implementing, Capacity Planning with a focus on performance tuning and support of large Networks.
• In - depth knowledge on Routing Policies, Network Architecture, IP Subnetting, VLSM, TCP/IP, NAT, DHCP, DNS.
• Experience in layer-3 Routing and layer-2 Switching. Dealt with Nexus models like 7K, 5K, 3k, 2Kseries, Cisco router models like 7200, 6500, 3800, 3600, 2800, 2600, 2500, 1800 series and Cisco catalyst 6500, 4500, 3750, 3500, 2900 series switches.
• Experience working on Cisco Catalyst Series 3750, 4500, 4900, 6500; Nexus 2000, 5000, 6000 and 7000 series switches.
• Extensive work experience with Cisco Routers, Cisco Switches, Load Balancers and Firewalls with Cisco hardware/software experience.
• Involved in troubleshooting of DNS, DHCP and other IP conflict problems.
• Responsible for Cisco ASA firewall and Palo Alto administration across global networks.
• Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Ether channel, STP, RSTP and MST. Implementation of HSRP, VRRP for Default Gateway Redundancy.
• Experience in working with Cisco Nexus Switches and Virtual Port Channel configuration.
• Extensive experience taking copy of Cisco IOS on TFTP server and loading back on routers.
• Worked on F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability.
• Involved in configuring of OSPF, BGP on Juniper Routers (MX960, MX480) and SRX Firewalls (SRX240, SRX550).
• Extensive troubleshooting experience in ISDN and telephony circuit CSU/DSU connections.
• Experience working with Cisco Nexus 2148 Fabric Extender and Nexus 5000 series to provide a Flexible Access Solution for a datacenter access architecture and involved in installing, configuring and troubleshooting Juniper EX Switches (EX2200, EX2500).
• Enterprise Routing experience using protocols RIP v1 & v2, EIGRP, OSPF and BGP.
• Implementing security policies using Cryptography, ACL, ASDM, IPsec, VPN, and AAA Security on different series of routers.
• Experience in Designing and assisting in deploying enterprise wide Network Security and High Availability Solutions for ASA.
• Knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP, Ether channel, STP, RSTP and MST. Implementation of HSRP, VRRP for Default Gateway Redundancy.
• Experience with different Network Management Tools and Sniffers like Wireshark (ethereal), HP-Open view, RSA envision, and Cisco works to support 24 x 7 Network Operation Center.
• Implemented traffic filters using Standard, Extended and Named access-lists.
• Configured Client VPN technologies such as SSL, Site-Site IPSEC VPN and DMVPN.
• Basic and advance F5 load balancer configurations, including migrating configurations fromCiscoACEto F5 and general troubleshooting of the F5 load balancers.
• Excellent customer management/resolution, problem solving, debugging skills and capable of quickly learning, effectively analysis results and implement and delivering solutions as an individual and as part of a team.
• ConfigureVRRP & GLBP andVLANTrunking802.1Q & ISL, STP, Port Security on Catalyst 6500 switches.
• Creating network diagrams using the Microsoft Visio.

TECHNICAL SKILLS:

Routers: Cisco 2600, 3600, 3800, 7200, 7600, ASR 9001.

Switches: Cisco 2960, 3750, 4500, and 6500 and Nexus 2K/3K/5K/7K series.

Routing Protocols: RIP V1/V2, EIGRP, OSPF, and BGP.

Switching: VLANs, VTP, STP, RSTP, PVST+, RPVST, VLAN Maps, Inter VLAN routing & Multi-Layer Switching, Ether channels (LACP, PAgP), VSS, VPC, VDC, CEF, DCEFPort Security.

Gateway Redundancy: HSRP, VRRP, GLBP.

Network Security: Cisco ASA, Palo Alto

Load balancers: F5 BIG-IP, LTM 6900 series, and GTM 6400 and 6800 series.

Protocols: IP, TCP, UDP, ICMP, NAT, DNS, DHCP, SNMP, IPSEC, SSL, HTTP, SSH.

AAA Architecture: TACACS+, RADIUS, Cisco ACS.

LAN Technologies: Ethernet Standards, VLAN, Inter-VLAN Routing, VTP, STP, RSTP, SMTPEther Channel, Port Fast, ACL.

WAN Technologies: Frame relay, (E1/T1/E3/T3) lines, PPP, HDLC, DS3, OC192.

Network Management Tools: NCM, Zenoss, Wireshark, Net flow Analyzer, Solar winds.

EXPERIENCE:

Confidential, Austin, TX

Sr. Network Engineer

Responsibilities:

• 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.
• Troubleshoot 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.
• Performed network implementation that includes configuration of routing protocols, leased lines, ISDN lines, VLANs and IOS upgrades and installations.
• Performed OSPF, BGP, DHCP Profile, HSRP, IPV6, Bundle Ethernet implementation on ASR 9K redundant pair.
• Having 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.
• Configured ASA 5500-X Series firewalls to provide highly secure and high performance connectivity between the site locations.
• Supported core network consisting of Cisco 7200 series routers running multi area OSPF.
• Responsible for all aspects of TCP/IP functionality across multiple enterprise environments.
• Configured and deployed BIG-IP LTM 6900 for providing application redundancy and load balancing.
• Configured Client VPN technologies such as SSL, Site-Site, IPSEC VPN and DMVPN.
• Involved in operations and administration of WAN consisting Ethernet Handoffs, T1, DS3, and Optic Fiber Handoffs.
• Provided technical assistance for LAN/WAN management & troubleshooting and complex customer issues using Network monitoring tools such as NCM and Zenoss.
• Performed Network Address Translation on Cisco ASA 8.2, 8.3 and 9.1 versions.
• Used DHCP to automatically assign reusable IP addresses to DHCP clients.
• Implemented traffic filters using Standard, Extended and Named access-lists.
• 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.
• Configure Firewalls, DMZ switches, detect intrusions, Filter content in ASA and Palo Alto

Environment: Cisco 7k,5k,3k and 2k switches, Cisco Routers 7200,3800,3600,2800, Cisco catalyst 6500,4500,3750, Network monitoring tools NCM and Zenoss, ASA Firewall 5500-X series, Palo Alto, BGP, OSPF, STP,VTP, EIGRP, VPN and NAT 8.2,8.3 and 9.1, ACL, VISIO.

Confidential, Raleigh, NC

Network Engineer

Responsibilities:

• Worked with the data center planning groups, assisting with network capacity and high availability requirements.
• Implemented VPC, VDC on Nexus Switches and also configured FEX.
• Performed network administration tasks such as creation and management of VLANS, Port security, Trunking, RPVST+, Inter-VLAN routing, and LAN security.
• Involved in resolving various issues on ASA 5540 and layer 2 and layer 3 issues.
• I was part of Data Center design and build team. As part of data center refresh project, I performed migration from Cat 6513 Switches to Nexus 7k.
• Used BGP for verifying various traffic policies and influencing outgoing, incoming traffic using BGP attributes such as Local Pref., AS Path, Med, Weights.
• Configured ASA 5540 to ensure high-end security on the network with ACLs and Firewall.
• Acquired excellent troubleshooting skills on 7613 Cisco Router, which include working on ticketing system and change management system to provide, troubleshoot support.
• Configured and maintained (2921, 3845, 7204, and 6509) and configured OSPF & BGP Protocols.
• Configured and resolved various OSPF multi-area environments, used OSPF as IGP with route filtering and route-redistribution, implemented Stubs/Totally stub areas, implemented features like route summarization and SPF throttling.
• Configure Firewalls, DMZ switches, detect intrusions, Filter content in Palo Alto platforms.
• Implemented traffic filters using Standard, Extended and Named access-lists.
• Expertise with Palo Alto Network Firewall and Cisco ASA.
• Involved in providing access to user machines and partners outside our network by SSL and IPSEC VPN tunneling.
• Configured and deployed BIG-IP, LTM-6900 for providing application redundancy and load balancing.
• Involved in operations and administration of WAN consisting Ethernet Handoffs, T1, DS3, and Optic Fiber Handoffs.
• Used internal network monitoring tools to ensure network connectivity and Protocol analysis tools to assess the network issues causing service disruption.

Environment: Cisco 7k,5k,3k and 2k switches, Cisco Routers 7600,3800,3600,2800,2600, Cisco catalyst 6500,4500,3750, Network monitoring tools Solarwinds and Wireshark, Palo Alto, ASA Firewall 5540, F5 BIG-IP and LTM 6900 Load Balancer, BGP, OSPF, STP,VTP, EIGRP, ACL, VPN and NAT 8.2,8.3.

Confidential, Denver, CO

Network Support Engineer

Responsibilities:

• Configured 3750, 4500, 6500 series and Cisco Catalyst Layer 3 Switches.
• Configured the site to site and remote user access VPN connections.
• Worked on 2600, 3500, 7613 Router, implemented OSPF and BGP and performed route filtering and route manipulation by applying distribute-lists, route-maps & offset lists. Majorly was involved in improving OSPF convergence by controlling SPF algorithm and LSA/SPF throttling in the WAN infrastructure.
• Used Load Balancers CSM and load balancing techniques for optimum efficiency of Cisco 6500 switches and 7600 routers.
• Managed Data Center Cat 6513 Switches with Supervisor Engine G and G line Cards and also implemented VSS, Worked on 3750, 4500, 6500 series Cisco Catalyst Layer 3 switches, in multi VLAN environment for the implementation of inter-VLAN routing, 802.1Q Trunking, VLAN Trunking between various access-switches and Ethernet channel. Provided Layer - 3 redundancy by implementing HSRP in the network.
• Involved in Network Designing, Routing, DNS, IP Subnetting, TCP/IP protocol.
• Part of a team in establishing the WAN network that has primary Leased Line and ISDN as backup source.
• Worked on Security issues, VPN, IPSec, NAT, Configuration Standard and Extended Access Control Lists (ACLs) and Firewalls.
• Configured IPSec VPN tunneling for client machines to access organization's network.
• Involved in troubleshooting Layer-2 & Layer-3 issues on daily basis.
• Configured Cisco IOS Feature Set, NAT and Simple Network Management Protocol (SNMP) for Network Security implementation.

Environment: Cisco 5k and 2k switches, Cisco Routers 7600, 3800,3500,2800,2600, Cisco catalyst 6500, 4500, 3750, Network monitoring tools Solarwinds and Wireshark, ASA Firewall 5540, LTM 6900 Load Balancer, ACL, BGP, OSPF, SPF, VTP, EIGRP, VPN and NAT.

Confidential

Network Engineer

Responsibilities:

• Configured, installed software applications, anti-viruses, drivers and security software on user devices, maintained and troubleshoot desktop, laptop and peripheral equipment.
• Perform hardware and software diagnostics, fault isolation and coordinate repairs and/or replacement of faulty equipment.
• Maintain logs of network and bandwidth utilization of servers and network devices and create utilization report based on the logs
• Design network and create physical and logical network layout diagrams.
• Converted networks with multiple routing protocols RIP, IGRP, EIGRP into a single OSPF domain, thus providing for future network scalability.
• Used Load balancer ACE and load balancing techniques for efficient performance and to increase reliability through redundancy.
• Accomplished in the usage of all tools in the TCP/IP protocol suite used with NT Server: DNS, DHCP, WINS, etc.
• Provide daily Help Desk support resolving trouble tickets.
• Write and maintain technical documents describing implemented technologies and architecture.
• Provided consultation services to clients for installing and configuring Cisco routers and switches.
• Co-ordinate with other internal team and vendors for creating test labs for network environments.
• Manage backup of all infrastructure and file server and do the recovery procedure when necessary.
• Troubleshoot TCP/IP problems; troubleshoot connectivity issues in Ethernet networks.

Environment: Cisco Routers 3800,3500,2800,2600, Cisco catalyst 4500, 3750, Network monitoring tools Solarwinds and Wireshark, ASA Firewall, VTP, ACE Load Balancer, OSPF, RIP, IGRP, EIGRP and NAT, VISIO.

Confidential

Jr. Network Support Engineer

Responsibilities:

• Provided technical assistance in upgrading IOS on Cisco Routers and Switches.
• Configured Access Control Lists to allow only authorized users to access certain applications and block others.
• Involved in switching related tasks implementing VLANs.
• Assisting senior engineers in troubleshooting TCP/IP issues and connectivity issues in multi-protocol environment.
• Perform planning, testing, and evaluate new devices and troubleshooting.
• Provided support to user's software, hardware & wireless issues and escalate to second level.
• Prepared the Technical specifications in operation manuals.
• Installing, repairing and upgrading desktop computers, which include software installation and imaging, and final configuration and testing.
• Worked with Remedy Ticketing tool in maintaining and keep a track of logs/monitor.
• Designed and implemented IP Addressing, Subnetting, Route Summarization and Route Distributions.
• Enabled SNMP traps for our Cacti Monitoring tool to monitor traffic and check the regular health of Servers and Network Devices.

Environment: IP Addressing, Subnetting, ACL’s, Network monitoring tool Cacti and NAT, DNS, DHCP, VISIO.