SUMMARY

• 8 years of working experience with configuring, installing and troubleshooting Cisco Products.
• Hands on experience with Cisco Catalyst 2900, 2960, 3600,3800 and 6500 series Switches, Cisco 1900, 2900, 3800, 3900, 7200 and 7600 series Routers and Nexus 2K, 5K, 7K switches.
• Worked on Cisco catalyst 6509 and implemented VDC along with VSS and VPC on Nexus 5505, 7009 switches.
• Experience in troubleshooting and reconfiguring in case of any issues in LAN and WAN protocols.
• Excellent knowledge in VLAN, intervlan routing, access control list, DHCP, NAT, OSPF, IPv4, IPv6.
• Well experienced in implementing IP addressing schemes, LAN and WAN protocols, IP services to satisfy the requirements of the network in different environments.
• In - depth knowledge in Tier II ISP routing protocols, IP Subnetting, Network architecture, TCP/IP, NAT, DHCP, VLSM, DNS, FT1 / T1 / FT3 / T3 SONET POS OCX / GigE circuits, Firewalls.
• Experienced with configuring protocols like HSRP, GLBP, VRRP, ICMP, IGMP, PPP, SNMP and Ether channel technology (LACP and PAGP).
• Strong experience with Physical cabling, IP addressing, WAN configurations (Frame-relay & MPLS), Routing protocol configurations (OSPF, EIGRP, BGP and RIP).
• Good knowledge in implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, STP, VTP Ether channel, RSTP and MST.
• Experience in troubleshooting network traffic and its diagnosis using tools like ping, tracert, Wireshark, TCP dump and Linux operating system servers.
• Excellent knowledge in Subnetting, VLSM and Supernetting.
• Experienced in implementing and configuring of traffic filters using standard and Extended access-lists, distribute lists, Route maps and Route manipulation using offset list.
• Hands on experience on security devices and firewall infrastructure under enterprise level network.
• Experienced on load balancing and redistribution.
• Excellent knowledge on configuring access lists, troubleshooting DHCP/DNS issues within a LAN network.
• Managed inventory of all network hardware, Management and Monitoring by use of SSH, Syslog, SNMP, NTP.
• Expertise in OSI layer model/TCP/IP.
• Strong knowledge of TACACS+, RADIUS implementation in Access Control Network.
• Good knowledge of F5 load balancers- LTM, GTM series like 6800 and 8900 for the corporate applications and their availability.
• Implemented Security Policies using ACL, Firewall, IPSEC, SSL, VPN, IPS/IDS, AAA (TACACS+ & RADIUS).
• Experience with configuring security components such as VPN, Cisco ASA firewalls, Palo Alto Firewalls, cisco ACL.
• Experience with convert Checkpoint VPN rules over to the Cisco ASA solution. Migration with both Checkpoint and Cisco ASA VPN experience.
• Experience in Configure domain's DNS records, such as an MX record, CNAME record, and so on.
• Experience in conducting Redundancy test, Failover and Recovery Test, Compatibility Test, Regulatory Compliance Test, Installation Test.
• Great Experience in troubleshooting network traffic and its diagnosis using tools like ping, traceroute, Wireshark, TCP dump and Linux operating system servers
• Good knowledge in working on network monitoring and analysis tools like Solarwinds, Cisco works and River Bed and Wireshark.
• Excellent communication skills, Negotiation, Analysis and Teamwork.
• Experience with configuring and installing client and server network software for upgrading and maintaining network systems.
• Experience with convert checkpoint VPN rules over to the Cisco ASA solution.
• Expertise with installing, configuring and troubleshooting Juniper EX Switches (EX2200, EX2500, EX3200, EX4200, EX4500) series.
• Experience with installing, configuring and troubleshooting of Juniper Routers (E, L, M and T series).
• Experienced in troubleshooting various network related problems by using sniffing tools.
• Experience on WAF (Web Application Firewall) to filter on coming security issues.
• Worked in web hosting environment to publish and maintain various websites on internet
• Efficient at using Microsoft Office and documenting.

TECHNICAL SKILLS

Switches: Cisco 6500, 4500, 3750, 3500, 2900 series, Nexus 7K, 5K, 2K

Routers: Cisco 1700, 1800, 2600, 2800, 3700, 3800, 3900 and 7200 series.

Switching: VLAN, VTP, STP, PVST+, RPVST+, Inter VLAN routing and Multi-Layer Switching, Multicast operations, Layer 3 switches, Ether channels, Transparent bridging.

Routing: OSPF, EIGRP, BGP, Route filtering, Redistribution, Summarization and Static routing.

LAN Technologies: Ethernet (IEEE 802.3), Fast Ethernet, Gigabit Ethernet.

WAN Technologies: PPP, HDLC, Channelized links (T1/T3), Frame Relay, VOIP

Network Security: Cisco ASA 5510, ACL, IPSEC, Checkpoint

Gateway Load Balancing: HSRP, VRRP, GLBP, EBGP

Various Features & Services: IOS and Features, HSRP, GLBP, IRDP, NAT, SNMP, SYSLOG, NTP, DHCP, CDP, DNS, TFTP and FTP Management Security Server Protocols

Services: DHCP, TFTP, SNMP, NAT, FTP, IRDP, SYSLOG

Load Balancer: F5 Networks (Big IP) LTM 8900 and 6400

Operating Systems: Windows (98, ME, 2000, XP, Server Vista, Windows 7/8), LinuxUNIX, WINTEL

Applications: Wireshark, SolarWinds

PROFESSIONAL EXPERIENCE

Confidential, Newark, NJ

Sr. Network Engineer

Responsibilities:

• Configured OSPF, BGP v4, EIGRP and RIP routing protocols in routers and IP, IPX routed protocols.
• Experience with configuring terminal servers and providing technical support for network issues.
• Designed and implemented LAN and WAN configurations on Cisco catalyst 4500, 3500, 2960, 6500 switches.
• Implementation of wireless access points, cisco 3750, cisco 3900 and ASR 1000s routers
• Experience with configuring OSPF, RIP and static routing in Juniper M series routers.
• Experience with creating and managing VLANs, inter VLAN routing, port security and LAN security.
• Experienced with configuring VDC in Nexus 7010
• Worked with cisco Nexus Fabric Extender and Nexus 5000 series to provide a Flexible Access Solution for datacenter access architecture.
• Implemented security policies using Firewall, SSL, IPSEC, VPN, AAA, IDS/IPS, ACL. Hands-on experience with ASA 5505 and 5510 firewalls.
• Setup a IPSEC VPN between ASA firewalls.
• Upgraded IOS on ASA 5510, 5520 firewalls.
• Worked with checkpoint support for solving escalated issues.
• Documented new VPN enrollments in a database and create standard procedures for further improvement.
• Experience with proxy automatic configuration(Pac) and SMTP protocol.
• Have deployed site to client and site to site VPNs using checkpoint firewall-1.
• Configured STP, VLAN, VSTP, SNMP on EX series switches.
• Experience with using PIX Firewalls and ACLs for the authentication of EIGRP for high security on the network.
• Used load balancers with multiple devices to increase reliability through redundancy and for efficient performance.
• Experience with migration of Frame Relay/ ATM network to MPLS based VPN for customer’s WAN infrastructure.
• Modified internal infrastructure by adding switches to support server farms and added servers to existing DMZ environments to support new and existing application platforms.
• Responsible for Checkpoint and Cisco ASA firewall administration across global networks.
• Co-ordinated with the Data Network and Security team and came up with possible solutions.
• Work on Physical Site Inventory verification, gather information of various Cisco Network devices and Security Devices to develop Run book and Spec Book.
• 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.
• Used Wireshark tool to analyze and test network protocols.
• Used Protocol analysis tool to access and pinpoint network issues and network monitoring tools to ensure network connectivity.
• Used DHCP to assign reusable IP addresses to the DHCP clients.
• Upgraded the cisco IOS from 12.3T to 12.4.
• Involved in configuring and implementing remote access solution for customers like Site2Site, IPSEC, GRE tunnel end-to-end.
• Involved in designing of F5 solutions for migration of websites and applications from cisco CSS load balancer to F5 BigIP load balancer.
• Provided tier III level load balancer expertise on F5 BigIP Local Traffic Managers.
• After receiving the ticket kept customers updated with the status of the ticket and the time to troubleshoot and fix the issue.
• Coordinated with the service providers over WAN link outages.
• Configured Nexus 2000 Fabric Extender which acts as a remote line card for the Nexus 5000.
• Experience in troubleshooting protocols and standards including TCP/IP, ADSL, UDP, Token Ring, IEEE 802.3 and multilayer switching.
• Expertise in configuring implementation and troubleshooting ofPaloAlto firewalls.
• Configuring rules and Maintaining Palo Alto Firewalls & Analysis of firewall logs using various tools.
• Worked on Palo Alto firewalls PA-2050 in creating and implementing the policies required by the company.
• Migrated legacy Cisco ASA firewalls to Palo Alto firewalls using Palo alto migration tool in the enterprise environment
• Handled other responsibilities like documentation and support for other teams.

Environment: Cisco 2948/3560/4500/3560/3750/3550/3500/2960/6500 switches, Cisco 3845/3600/ 0/3900 and ASR 1000s routers, Cisco Nexus 7K/5K, Palo Alto, Cisco ASA 5505/5510/5520 , Juniper M series routers, F5 BIGIP LTM, OSPF, EIGRP, BGP, LAN, WAN, VPN.

Confidential, Santa Ana, CA

Network Engineer

Responsibilities:

• Configuration, troubleshooting and administration of Cisco and Juniper Switches and Routers.
• Designed and implemented Data Center Migration and strategies for the expansion of the MPLS VPN networks.
• Experience in administering and implementation of LAN and WAN with an in-depth knowledge of TCP/IP, UDP, PPP, NAT and other protocols and services.
• Configured VLANs and implemented VLAN routing.
• Upgrading of Cisco IOS on Switches and Routers.
• Experience in handling the migration of frame-relay based branches to MPLS using multilayer stackable switch like 6500 series and router like 2800 series.
• Troubleshooting the Juniper SRX100 and 110 series, Juniper Netscreen routers with Site-Site VPN, and firewalls for Supervalu Retail sites.
• Implemented Site to Site VPN connectivity.
• Configured PIX firewalls for the guest access.
• Involved in configuring four PIX 525 and two ASA 5505 in customer locations.
• Experience with implementing IPsec, IPsec over GRE, HARP, Dynamic and Static routing, DHCP, FTP, TFTP and DNS.
• Troubleshooting and installing of ISR, ASR9000 and Nexus devices.
• Worked on Cisco Routers, Active /Passive Hubs, Switches, Cisco PIX Firewall, Nortel VPN Concentrators TCP/IP, NAT and Checkpoint ESX/GSX firewall.
• Experience working with Nexus 7010, 5020, 5548, 2148, 2248 devices
• Used PIX Firewall and ACLs for authentication of EIGRP to ensure high security on the network.
• Configured Cisco 7200 routers which were also connected to Cisco PIX 535 security appliances providing perimeter based firewall security.
• Used load balancers ACE and load balancing technique with multiple components for efficient performance and to increase reliability through redundancy.
• Used Kiwi-Cat tools to manage configurations from desktop for network devices, including routers, switches and firewalls.
• Designed and implemented wireless IPT device.
• Involved in configuration of Cisco 6500 ACE switches.
• Involved in configuring Juniper SSG-140.
• Troubleshooting hardware and network related problems.
• Testing voicemail, E911 and Media gateways.
• Experience with diverting traffic from one datacenter to other datacenter when disasters occurs.
• Involved in configuring IPSLA monitor to track different IP route when a disaster occurs.
• Held meetings with application group and gathering requirements for disaster recovery.
• Hand on experience with smart view tracker to check the firewall traffic.
• Experience with troubleshooting routing protocols: OSPF, EIGRP, BGP v4. Configured IP access filter policies.
• Involved in the monitoring of QOS and analyzed the traffic to troubleshoot any QOS related issues.
• Worked on SolarWinds Orion for analysis and monitoring purposes.

Environment: Cisco 6500 switches, Cisco 3845/3600/ 0/3900 routers, Cisco Nexus 7K/5K, Cisco ASA 5505/5510/5520 , PIX Firewalls, Juniper SSG-140, Juniper SRX 100/110, F5 BIGIP LTM, OSPF, EIGRP, BGP, LAN, WAN, DHCP, FTP, TFTP and DNS.

Confidential, Redmond, WA

Network Engineer

Responsibilities:

• Configured Cisco 7206 router with VPN and configuration of catalyst switches.
• Involved in configuring HSRP and VLAN trucking 802.1Q and VLAN routing in Catalyst 6500 switches.
• Configured routing protocols such as OSPF, BGP, static routing and policy based routing.
• Experience with installing and testing Cisco router, ASA Firewalls and MPLS switching for stable VPNs.
• Performed troubleshooting on link state protocols like OSPF in single area and multiple areas.
• Involved in redesigned internet connectivity infrastructure for meeting bandwidth requirements.
• Optimized the performance of WAN network consisting of Cisco 3500/4500/6500 switches by configuring VLANs.
• Configured BPDU Guard, port-fast, uplink fast and other spanning tree features.
• Configured VLANs with 802.1q tagging, trunk groups, ether channels, spanning tree for creating access/distribution and core layer switching architecture.
• Hans on experience with troubleshooting Cisco Nexus switches 2000, 3000, 6500, 7004, 7700 series.
• Configured RIP, OSPF and Static routing on JuniperM and MX series Routers.
• Continually monitored, assessed and improved network security and implementing new security technologies.
• Experience with Firewall Administration, Rule Analysis, Rule Modification
• Modified internal infrastructure by adding switches to support server farms and added servers to existing DMZ environments to support new and existing application platforms.
• Deployed 7613 as PE and CE router and Configured and troubleshoot the Edge Routers.
• Excellent troubleshooting knowledge on T1, T3, OC-3 and OC-12.
• Configuring rules and Maintaining Palo Alto Firewalls & Analysis of firewall logs using various tools.
• Understand the flow of traffic through the Check Point Security gateway cluster and troubleshoot connectivity issues using advanced troubleshooting from Command Line Utilities.
• Use Tools such as SKYBOX for Firewall Policy optimization and rule base Clean up.
• Have an in-depth knowledge of Voice gateway configuration (ISR Cube, IPIPGW) and deployment, interoperability and troubleshooting.
• Developed a strong understanding of network infrastructure and familiarity with congestion avoidance techniques to ensure high voice quality installation, design, configuration and integration of CUCM.

Environment: Cisco 2948/ 3500/4500/6500 switches, Cisco 3845/3600/ 0/3900 routers, Juniper MX routers, BPDU, BGP, HSRP.

Confidential

Network Engineer

Responsibilities:

• Configured Static, EIGRP, OSPF, IGRP routing protocols on Cisco 1900, 2600, 2800, 3600 series routers.
• Designed OSPF areas for reliable Access Distribution and for core IP routing.
• Performed IPv4 addressing using VLSM, FLSM for allocating subnets.
• Implemented IGMP, IGMPv2 protocols for IP multicasting traffic distribution.
• Experience with configuring LAN switches such as Cisco catalyst 2900 and 3750 switches.
• Experience with configuring inside ACL and interfaces, outside ACL and interfaces, NAT and PAT policies.
• Configured ACLs to provide accessibility and restrict unauthorized users.
• Involved in maintaining STP, RSTP and PVST+ for the catalyst switches I worked on.
• Assisted in racking and stacking.
• Technical assistance for LAN/WAN management and customer issues.
• Configured BPDU guard, port-fast and other protocols.
• Supported a MPLS WAN to enhance inter-office connectivity between Hyderabad and Bengaluru sites.
• Worked on SolarWinds to monitor network for optimum traffic distribution and load balancing.
• Monitored network in real time by using HP open view by implementing policies and creating custom events.
• Analyzed network traffic using Wireshark.
• Other responsibilities also included documentation.

Environment: Cisco 2900/3750 Switches, Cisco 1900/2600/2800/3600 Routers, TCP/IP, DNS, DHCP, VLAN, NAT, PAT WAN, MPLS.

Confidential

Jr. Network Engineer

Responsibilities:

• Performed daily maintenance, troubleshooting, configuration and installation of all network components.
• Configured Cisco routers 2800 and 3600 series and 2900, 3750 series Switches.
• Worked on migrating of RIP V2 to OSPF, BGP routing protocol.
• TCP/IP network planning, Implementation and Management with subnets.
• Provided Level 1 Support for Broadband Connection to Virgin Media customer
• Worked as a Technical Support Executive under Virgin Media.
• Received inbound calls of technical nature, independently resolved customer complaints, concerns and inquiries regarding their Internet connection.
• IOS upgrades on catalyst series switches like 2900, 3560, 3750.
• Implemented and configured IP routing protocols: OSPF, EIGRP and RIPv2.
• Implemented and configured LAN protocols: Ethernet, VLANs, VTP and STP.
• Enabled SNMP traps for our Cacti monitoring tool to monitor traffic and check the regular health of servers and network devices.
• Designed and implemented IP addressing, Subnetting, Route Summarization and Route distribution.
• Worked with Remedy Ticketing tool in maintaining and keep a track of logs/monitor.

Environment: Cisco 2800/2900/3600/3750 series switches, Cisco 3600/2800 routers, OSPF, EIGRP, BGP, LAN, WAN, HSRP, VTP, STP.