SUMMARY:

• CISCO CERTIFIED Network Engineer with 8+ years of experience in Networking, including hands - on experience in providing network support, installation and analysis for a broad range of LAN /WAN/MAN communication systems.
• Expertise of Cisco Routing, Switching, firewall and Security with cisco hardware/ software (heavy cisco shop). Hold strong knowledge in OSI layer model and TCP/IP model for layer -3 Routing (L-3), Experience with designing, deploying and troubleshooting routing protocol RIP, RIPV2, OSPF, EIGRP & BGP, and Layer-2 Switching(L-2), implementing VLAN, VTP, LAN switching, STP and 802.x authentication in access layer switches. Apart from that deploying and troubleshooting LAN, WAN, Frame - Relay and Ether-Channel, ACL's, NAT, BPDU, HSRP & GLBP.
• Expertise with security issues surrounding endpoints, including operating system, data loss prevention, endpoint detection and response, anti-virus, anti-malware, endpoint firewall, host intrusion detection, and mobile devices
• Experience in layer-3 routing and layer-2 switching. Dealt with Nexus models like 7K, 5K, 2K series, Cisco router models like 7200, 3800, 3600, 2800, 2600, 2500, 1800 series and Cisco catalyst 6500, 4500, 3750, 3500, 2900 series switches.
• Use Configuration Manager Active DirectorySystem Discovery to search the specified Active DirectoryDomain Services (ADDS) locations for computer resources that can be used to create collections and queries.
• In-depth expertise in the analysis, implementation, troubleshooting & documentation of LAN/WAN architecture and good experience on IP services.
• In-depth knowledge and hands-on experience on IP Addressing, Sub netting, VLSM and ARP, reverse & proxy ARP, Ping Concepts
• Experience on Juniper CLI command line.
• Implementation of HSRP, VRRP and GLBP for Default Gateway Redundancy.
• Experience with CISCO, firewalls, switches, routers, and CISCO Prime.
• Strong experience in Networksecurity using ASA Firewall, Checkpoint, Palo Alto, Cisco IDS/IPS and IPSEC/SSL VPN, F5 Load Balancer.
• Implemented security policies using ACL, Firewall, IPSEC, SSL, VPN, IPS/IDS, AAA (TACACS+ & RADIUS)
• Hands on experience on windows server 2007, 2008, 2012.
• Expertise in configuring of SSH, TFTP, FTP, DNS, DHCP and Syslog and Experience with DNS/DFS/DHCP/WINS Standardizations and Implementations.
• Hands on experience in deployment of GRE tunneling, SSL, Site-Site IPSEC VPN and DMVPN.
• Proficient in design, implementation, management and troubleshooting of Check Point firewalls, Check Point Provider-1 / VSX, Palo Alto IDS/IPS modules, Data Center Migration, F5 Load Balancers, LTM, GTM, ASM, APM Bluecoat proxy and URL filtering.
• Knowledge of CPI - Cisco Prime Infrastructure (ideal to have)
• Hands on Experience in configuring F5 objects, components and provisioning various modules like LTM, GTM, ASM, APM
• Hands-on experience in configuring Cisco routers/ Switches to perform functions at the Access, Distribution, and Core layers
• Experience in configuring ISP two advertise only two aggregate routes to the transit peers to transit service to other portions of the Internet
• Experience with design and deployment of MPLS Layer 3 VPN, MPLS Traffic Engineering, MPLS QOS
• Experience in installing, configuring, and troubleshooting of Juniper Networks (E, J, M, and T-series) and Juniper EX switches (like EX2200, EX2500, EX3200).
• Experience in Juniper Products such as: MX, T-Series, EX, SRX and QFX
• Hands-on experience on Cisco ASA Firewalls - ASA 5540, 5550, ASDM, CLI, Firepower, Sourcefire IPS/IDS.
• Design, implementation and support for network security technologies and products (WAF, Cisco ISE, AMP, Firepower, etc.)
• SNMP configuration for alerting and monitoring Responsible for Bluecoat Proxy configurations to migrate current Bluecoat Secure Proxy Gateway to s Forward and Reverse Proxy Appliances. Support pilot and weekend implementations.
• Experience with Unix/Linux systems administration and creation shell scripts is an advantage
• Good understanding of virtualization, automations concepts and Juniper modeling tools.
• Implementation, Configurationand Support of Checkpoint (NGX R65, R70, R71, R75 and R77), Juniper Firewalls (SRX5400, SRX5600 and SRX5800), Cisco Firewalls (ASA 5505, 5506-X, 5585), Palo AltoNetworks Firewall models (PA-2k, PA-3kand PA-5 k).
• Experience in installing and configuring NAT, DHCP server and DNS in large networks.
• Configured, monitored Palo Alto PA-3K, PA-5K models, implemented Policies, URL filtering, App, User ID, & threat Prevention on the internalnetworkvia Panorama also configured policies on Cisco ASA, Checkpoint WEB Gateways for Site-to-Site, Web & SSL VPN purpose knowledge of Cisco Routers, Switches, F5 Load-Balancers, Infoblox DNS and bluecoat proxies.
• Excellent in documentation and updating client’s network documentation using VISIO.
• Good at problem solving and can deploy solutions quickly.

TECHNICAL SKILLS:

Networking Concepts: Routing, Switching, Subnetting, Designing, Access lists, CSU/DSU, IPsec, VLAN, VPN, WEP, WAP, MPLS, VoIP, Bluetooth, Wi-Fi

Networking Protocols: RIP, OSPF, EIGRP, BGP, STP, RSTP, VLANs, VTP, PAGP, LACP, MPLS, HSRP, VRRP, GLBP, TACACS+, Radius, AAA

Juniper Concepts: SRM, EX, MX, JX Routers, and Switches

Cisco Concepts: Cisco routers (7600, 7200, 3800, 3600, 2800, 2600, 2500, 1800 series), Cisco Catalyst switches (6500, 4900, 3750, 3500, 4500, 2900 series), Nexus 7K, 5K, 2K & 1K

LAN Technologies: Ethernet, Fast Ethernet, Gigabit Ethernet, & 10 Gigabit Ethernet, Port- channel, VLANS, VTP, STP, RSTP, 802.1Q

WAN Technologies: Frame Relay, ISDN, ATM, MPLS, Leased line & exposure to PPP, SD-WAN, DS1, DS3, OC3, CRS 4 slot

Communication Protocols: TCP/IP, UDP, DHCP, DNS, ICMP, SNMP, ARP, RARP, HDLC and ISDN, SDN

Firewall Security: Cisco PIX 500 series, Cisco ASA 5500 series, Checkpoint, Juniper SRX, SDM

Security Technologies: Cisco FWSM/PIX/ASDM, Juniper SRX, Palo Alto, Checkpoint, F5 Load Balancer, ASA firewall, VPNs, Web Application firewall

Network monitoring Tools: Wire shark, Cisco works, PUTTY, SolarWinds.

Security Protocols: IKE, IPsec, SSL, AAA, Access: lists, prefix-lists.

Redundancy protocols: HSRP, VRRP, GLBP.

PROFESSIONAL EXPERIENCE:

Confidential, Durant, OK

Networking engineer

Responsibilities:

• Experienced in Installing Cisco Routers, Switches and Configuring ACL, OSPF, VLAN, Port Security, MPLS, HSRP.
• Hands on experience in Cisco Catalyst 4500, 3850, 3750. Nexus 2k, 5k, 6k, and 7k FEXs. Upgraded, 1Gig to 10Gig.
• Oversee assignments, coordinate work and provide for support to Network Administrator-Level I on network issues and also provides delivery of support to the Service Desk in regard to associate support requests.
• Experienced with inter-VLAN routing, access lists, dynamic NAT, VTP and trunking on switches.
• Maintain and enhance performance of all voice, security, network (routing and switching), and wireless infrastructure across the organization.
• Creating and troubleshooting VPN, IPsec Tunnels, ASA Firepower to monitor data and threat protection on ASA 5525 firewall.
• My experience includes working in 24/7 environment, attending issues on phone call, understanding the issue, visualizing the scenario and providing correct solution is my biggest strength.
• Configured Layer 2, Layer 3 interfaces and Port Channel and vPC.
• Test and debug network protocols that include TCP/IP, ARP, ACL, OSPF, EIGPR, BGP, PPP, Port Security, and Port Based Authentication.
• Designed VLANs, VTP topology, ACLs, troubleshooting IP Addressing issues and updating IOS images.

Environment: Cisco Catalyst/Nexus switches, 7600 series routers, Python, Linux/UNIX and Windows XP, Level 1/2/3 protocols and troubleshooting, Mac OS, Ubuntu, ACLs

Confidential, Northbrook, IL

Sr. Networking engineer

Responsibilities:

• Site Survey, Designing High Level Design, Low Level Design and standardizing the zebra locations all over the world.
• Worked On UNIX, Linux, and Windows Platforms and involved in capacity planning ofNetwork Maintenance.
• Hands on experience on windows server 2007, 2008, 2012.
• Implement and troubleshoot Juniper SRX Firewall polices as related to network and application related communications.
• Hands on experience with Palo Alto Firewall, Cisco 4451, ASA firewall
• Performed network implementation that includes configuration of routing protocols, leased lines, ISDN lines, VLANs and IOS installations.
• Troubleshot the network issues onsite and remotely, depending on the severity of the issues.
• Implementation, Configuration and Support of Checkpoint (NGX R65, R70 and R71), Juniper Firewalls (SRX5400, SRX5600, SRX5800)
• Installed client software on each node and managed servers, desktops and mobile devices connected to a network throughActive Directory through System Center Configuration Manager2012(SCCM).
• Managed applicationdeployments and updates on a device or group basis, allowing for automated patching with Windows
• Managing and supporting large scale MPLS & Frame relay on Cisco & Juniper environment for more than 5000 Retail sites, 100 Distribution centers, 100 offices and 3 datacenters.
• Experience in configuring and Troubleshooting BIG-IP F5 load balancer LTM
• Configured and deployed VPC, OTV, FABRIC PATH between Nexus 7010 and Nexus5596,5548 switches along with FEX2248
• Experience with Bluecoat Proxy servers, LAN & WAN management
• Worked with layer 2 switching technology architecture and 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.
• Supported core network consisting of Cisco 7200 series routers running multi area OSPF.
• 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.
• Lead and implement the design of a cyber security platform in nuclear power plants. Responsibilities include network design, identification of security zones, implementation of firewalls and Uni-directional gateways.
• Responsible for all aspects of TCP/IP functionality across multiple enterprise environments.
• Performed OSPF, BGP, DHCP Profile, HSRP, IPV6, Bundle Ethernet implementation on ASR 9K redundant pair.
• Involved in Implementation and Configuration (Profiles, I Rules) of F5 Big-IP C-4400 load balancers
• Worked extensively on firewalls and configuration of Cisco (AAA) ACS server, RADIUS and TACACS+ for VPN users and implementation of secured VPN on Cisco routers, PIX and VPN concentrator appliances.
• Configuration of Network and Security devices such as Cisco routers and switches (Cisco 7600/3500/Nexus 7K/5K).
• Configured ASA 5500-X Series firewalls to provide highly secure and high-performance connectivity between the site locations.
• Deployed F5 Enterprise manager of 4000 series for all the cluster devices over the network for easier management of configurations like SSL certificates, disable and enable of nodes states. configuring Big-IP F5 LTMs (virtual servers, pools, SNATs, health monitors, rules) for managing the traffic and tuning the load on the network servers.
• Review and document current Bluecoat Appliances specifications, Policies and rules.
• Working on CISCO Prime and Wireless controller to Manage all WAPs in campuses
• Worked on Juniper SRX 5800 firewalls to create policies using J-Web User Interface.
• Implemented SNMP on Cisco routes to allow for network management
• Performed Network Address Translation on Cisco ASA 8.2 and 8.3
• Used DHCP to automatically assign reusable IP addresses to DHCP clients.
• Worked on Fortinet Firewall to Reduce complexity and improve overall security posture by providing full visibility into users, devices, applications and threats on the network.
• Performed the ACL request changes for various clients by collecting source and destination information from them.
• Troubleshoot the BIG-F5 1600 LTM through constant contact with the vendor.
• Performed load balancing and application level redundancy by deploying F5 BIG-IP LTM 3900 and BIG-IP GTM.
• Worked on ASA 5510/5520 firewalls configuration and Implementation for thenetwork.
• Responsible in troubleshooting on Cisco ISE added new devices onnetworkbased on policies on ISE.
• Created MOPS (Method of procedures) and sought the approval of peers to perform configuration changes.

Environment: TACACS+, RADIUS, SolarWinds, Solaris, SSL, Juniper switches EX 2200, EX 2500, EX4200, EX4500 and Cisco Nexus 7k, 5k, Cisco 12000/7200/3845/3600 routers, Syslog, ALU 7705, CISCO PRIME, Cisco ASA5520, Fortinet firewalls, Open Stacks, VMware, Cisco AIR-CAP2602I-E-K9, Checkpoint, F5 Load Balancers (LTM).

Confidential, Atlanta, GA

Network Security engineer

Responsibilities:

• Windows Server Administration (Windows 2000, 2003 & 2008).
• Worked On UNIX, Linux, and Windows Platforms and involved in capacity planning ofNetwork Maintenance.
• Work with the following routing/switching protocols: BGP, OSPF, EIGRP, HSRP, VRRP, GLBP, VTP, 802.1d, and 802.1q, ISL, VLAN's and Port-Channels.
• Manage allNetworkand Firewall devices to include Cisco routers, switches, SSLs, VPNs, Checkpoint as well as content delivery networks (Citrix NetScaler, F5 BIG-IP LTM and GTM load balancers)
• Convert Branch WAN links from point to point circuits to MPLS and to convert encryption from IPSEC/GRE to Get VPN
• Understanding cloud security initiatives - Bluecoat Cloud Web Security Services
• Installing network applications on network servers or voice equipment; Maintaining, tests, researches and resolving problems.
• Provide support with DNS, Juniper SRX, Firewalls and Access Lists, routers, switch configurations.
• Assesses and updates older networks as needed and in accordance with specified plans.
• Tracked customernetworkat NOC 24x7, prepared forecasts ofnetworktraffic and capacity, and recommend modifications to thenetworkconfigurations which reduce costs or improve quality of service
• Worked on Extensively on Cisco Firewalls, Cisco PIX (506E/515E/525/) &ASA 5500(5510/5540) Series.
• Working with the firewalls PA-5020, PA-3020 series Palo Alto firewalls and Panorama, configuring firewalls Rules, troubleshooting the connectivity issues.
• Troubleshoot and maintain data loss prevention, endpoint detection and response, anti-virus, anti-malware, endpoint firewall.
• Worked on F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability
• Data center migration was involved in Access, Distribution and Core layers.
• Experience in ISP services for accessing and organized in various forms, such as commercial, community-owned, non-profit, or otherwise privately owned.
• Configured OSPF, MPLS, BFD, QoS, creating VC/VP's and assigning traffic parameters per the target profile
• Worked extensively in Configuring, Monitoring and Troubleshooting Cisco's ASA 5500/PIX security appliance, Failover DMZ zoning & configuring VLANs/routing/NATing with the firewalls as per the design.
• Actively participated in upgrading fast Ethernet, Layer 3 switched/routed LAN infrastructure from Cisco 3640 to Cisco 2811 ISR routers and switches at access level to 2950, 3550.
• Worked On UNIX, Linux, and Windows Platforms and involved in capacity planning ofNetwork Maintenance.
• Conversions to BGP WAN routing. Which will be to convert WAN routing from OSPF to BGP (OSPF is used for local routing only) which involves new wan links.
• Centralized management & monitoring for remote networksyslog servers.
• Provide support with DNS, Juniper SRX, Firewalls and Access Lists, routers, switch configurations. configuration, implementation and operation of Gigamon products
• Implement, install, configure, operate, and maintain Government-furnished network tools (Cisco, SolarWinds, Infoblox, etc.)
• Hands-on experience on Cisco ASA Firewalls - ASA 5540, 5550, ASDM, CLI, Firepower, Sourcefire IPS/IDS.
• Installed high availability Big IP F5 LTM and GTM load balancers to provide uninterrupted service to customers
• Tests and analyzes all elements of the network facilities including power, software, security features, communications devices, lines, modems, and terminals; and for the overall integration of the enterprise network.
• Troubleshooting problems on a day to day basis & providing solutions that would fix the problems within theirNetwork.
• Created Visio Dean / Visio Documentation to give complete picture of network design for each building.

Environment: Cisco switches 6530 and 4507, CISCO routers 7613,2600, 2800, 3200, TCP/UDP, Ethernet, TCP/IP, SNMP, VLAN, BGP, EIGRP, OSPF, Cisco routers, Cisco firewalls, Checkpoints, Cisco ASA5520, Cisco Nexus 5k,2k, Apache, UNIX, paloalto Firewalls, F5 Load Balancers(LTM), Fortinet firewalls, Active directory, IPS, VLAN, IDS, STP, VPN, Windows Server, Windows NT.

Confidential, Minneapolis, MN

Network engineer

Responsibilities:

• Configured and integrated new and existing network devices based upon client requirements
• Implemented network designs based upon design documents on timely basis
• Designed and implemented network solutions according to client requirements
• Involved in Site Survey team that covers around 95 sites across NSP, PSCO and SPS for the Site Improvement Infrastructure (SII) project which includes analyzing overall network environment for every single site and then suggesting recommendations by speaking with Network Architects to upgrade the network environment
• Conducted Pre-site surveys by preparing a checklist obtaining WAN, LAN ports quantity and type, VLAN information, physical connectivity network diagrams, IP ranges, NAT policies, QOS policies, network equipment inventory lists, network cabling plan for every single network equipment and reviewed Network trouble tickets for every site
• At site surveys, attended initial Kick-off meetings which gave the customer-based issues on Network, Server, Desktop and Infrastructure. Analyzed Network based issues by Visiting all the MDF’s, IDF’s and Data Center’s located in each site to look at the physical condition of network equipment’s which includes, power supply, Serial#, Network Vendor, Rack# and its position, room temperature, UPS, type of cabling and labelling, feed to the patch panels and infrastructure
• Experience in Cisco IOS Upgrade, Net screen firewalls and Bluecoat proxy server’s firmware upgrade
• Configuring, upgrading and deployment of Nexus 7010, 5596 and 2248
• Working with Cisco Nexus 2248 Fabric Extender and Nexus 5500 series to provide a Flexible Access Solution for datacenter access architecture.
• Experience with configuring Nexus 2000 Fabric Extender (FEX), which acts as a remote line card (module) for the Nexus5000.
• Implementation, Configuration and Support of Checkpoint (NGX R65, R70 and R71), Juniper Firewalls (SRX5400, SRX5600, SRX5800), Cisco Firewalls (ASA 5505, 5506-X, 5585), Palo AltoNetworks Firewall models (PA-2k, PA-3k, PA-5k)
• Involved in Implementation and Configuration (Profiles, I Rules) of F5 Big-IP C-4400 load balancers
• Implemented Zone Based Firewalling and Security Rules on the Palo Alto Firewall.
• Conducted Site Surveys, Hands-on experience with Cisco L2/L3 equipment, L2/L3 engineering, Performed Physical and Logical IMAC, Network Troubleshooting, and Operationalization functions for project-related activities
• Created and maintained Network diagrams, Network equipment device configuration, CPU memory utilization, Half Duplex ports, Port Information and Network equipment pictures by uploading in SharePoint database which has access to all the Network Architects
• Experience with Checkpoint VSX, including virtual systems, Blue Coat SG8100, routers and switches
• Worked on DataCenter which has, ASR 1000.
• Worked on Remedy and Mercury tools for ticketing system and authentication
• Configure Virtual Servers, Nodes, and load balancing Pools in F5 BIG-IP LTM
• Created documentation for network implementation which is followed site surveys
• Excellent in documentation and updating client’s network documentation using VISIO.

Environment: Cisco switches 6530 and 4507, CISCO routers 7613,2600, 2800, 3200, Checkpoint, Cisco ASA5520, Cisco Nexus 5k,2k, Apache, UNIX, paloalto Firewalls, F5 Load Balancers (LTM), Fortinet firewalls, Active directory, IPS, VLAN, IDS, STP, VPN, Windows Server, Windows NT.

Confidential, Blue springs, MO

Network support engineer

Responsibilities:

• Configured various Routing protocols such as RIP, OSPF, EIGRP, static routing.
• Configure, troubleshoot Spanning- Tree, EIGRP, OSPF, BGP, PAT/NAT, ACLs, HSRP and IPSEC/GRE tunneling.
• Configuration and extension of VLAN from onenetworksegment to other segment between different vendor switches (Cisco, Juniper)
• Implemented Positive Enforcement Model with the help of Palo Alto Networks.
• Deployed and maintained Juniper firewalls-globally.
• Apply firewall configurations on Juniper ISG 2000 firewalls
• Administration and diagnostics of LAN and WAN with in-depth knowledge of TCP/IP, NAT, PPP, ISDN and associatesnetworkprotocols and services.
• Experience with Checkpoint Firewall policy provisioning.
• Provided installation and initial user configuration of NEXUS 1K and 5K switches at the Data Center and providing IP addressing and different user session priorities on the switch.
• Troubleshoot TCP/IP problems; troubleshoot connectivity issues in multi-protocol Ethernet, Environment.
• Configuring and troubleshooting with Cisco ASA (5550/5520), Juniper SRX (3600/650).
• Configuration of STP and Port Security on Catalyst 2900, 4900, 6500, 6509 and 7509 switches.
• Configuring VLAN Spanning-Tree in conjunction with PVST+ for compatibility between Cisco and Juniper switches.
• Implemented Zone-Based Firewalling and Security Rules on the Palo Alto Firewall.
• Configuration & troubleshooting of routing protocols: BGP, OSPF, LDP, EIGRP, RIP, BGP v4.
• Used various scanning and sniffing tools like Wire Shark.
• Configuring and implementing Checkpoint VSX firewalls.
• Built and support VRRP / Cluster based HA of Checkpoint firewalls
• Troubleshooting of DNS, DHCP and other IP conflict problems.
• Troubleshooting L2/L3 environments. Troubleshooting the issues with the MPLS VPN connectivity and Configured Virtual Routing Forwarding (VRF) on Cisco routers.
• Optimized performance of the WANnetworkconsisting of Cisco 3550/4500/6500 switches by configuring VLANs.
• Troubleshooting of Cisco 2800, 2900, 3700, 3900, 7200, 7600 routers.
• Creating PVLANs and preventing VLAN hopping attacks and mitigating spoofing with snooping and IP source guard.
• Key contributions include troubleshooting of complex LAN/WAN infrastructure.
• Enabled STP enhancements to speed up theconvergence that includes BPDU Guard, Port- fast, Uplink-fast on various layer 2 and layer 3 switches.
• Monitor, troubleshoot, test and resolve Frame Relay, ATM, and PPP.
• Maintaining Core Switches, creating VLANs and configuring VTP
• Migrating the terminating VPN from Cisco technology to Juniper technology.
• Back up a Cisco IOS to a TFTP server and upgrading and restoring a Cisco IOS from TFTP server.
• Performing network monitoring, providing analysis using various tools like Wireshark, SolarWinds and Cisco Works.

Environment: Cisco 2900, 4900, 6500, 6509 and 7509 switches. Cisco (2800, 2900, 3700, 3900, 7200, 7600) Routers, MPLS, OSPF, BGP, EIGRP, NAT, LDAP, DHCP, http, HTML, ISP, HTTPS, TCP/IP, UDP, SNMP, OSPF, RIP, IPSEC, PPTP, VLAN, STP), RTSP, BPDU, PPP, ATM

Confidential, Weston, FL

Network Administrator

Responsibilities:

• In-depth expertise in the implementation of analysis, optimization, troubleshooting and documentation of LAN/WAN networking systems.
• Configured and troubleshoot OSPF and EIGRP.
• Planning and configuring the routing protocols such as OSPF and Static Routing on the routers.
• WAN Infrastructure running OSPF & BGP as core routing protocol.
• Tested authentication in OSPF and BGP.
• Performed and technically documented various test results on the lab tests conducted.
• Hands on Experience working with security issue like applying ACL's, configuring NAT and VPN
• Responsible for Internal and external accounts and, managing LAN/WAN/WLAN and checking for Security
• Installed and configured Cisco ASA 5500 series firewall and configured remote access IPSEC VPN on Cisco ASA 5500 series
• Responsible for Configuring SITE TO SITE VPN on VPN Concentrators series between Head office and Branch office
• Configured Firewall logging, DMZs& related security policies & monitoring
• Worked on Cisco Layer 2 switches (spanning tree, VLAN)

Environment: Ethernet, Fast Ethernet, Gigabit Ethernet, & 10 Gigabit Ethernet, Port- channel, VLANS, VTP, STP, RSTP, 802.1Q, Frame Relay, ISDN, ATM, MPLS, Leased line & exposure PPP, SD-WAN, DS1, DS3, OC3, CRS 4 slot, Cisco ASA 5500 series, IPSEC VPN, OSPF, BGP, EIGRP, VPN, DMZ.

Confidential

Network Administrator

Responsibilities:

• Responsible for the installation, configuration, maintenance and troubleshooting of the company network.
• Responsible for service request tickets generated by the helpdesk in all phases such as troubleshooting, maintenance, upgrades, patches and fixes with all around technical support.
• Performed IOS upgrades and experienced on Catalyst 1900, 2900, 3500 series switches and 2500, 2600, 3600 series routers.
• Experience in Cisco 7200, 7600 routers, Cisco series switches: Physical cabling, IP addressing, Wide Area Network conditions.
• Configured Cisco Routers for OSPF, RIP, IGRP RIPv2, EIGRP, Static and default route.
• Configuring STP for switching loop prevention and VLANs for data and voice along with Configuring port security for users connecting to the switches.
• Involved in L2/L3 Switching Technology Administration including creating and managing VLANs, Port security, STP, Inter-VLAN routing, LAN security.
• Implementation of TCP/IP and related Services-DHCP/ DNS/ WINS Configured VLAN's, Private VLAN's.
• Worked on the security levels with RADIUS, TACACS+.
• Negotiate VPN tunnels using IPSec encryption standards and configured and implemented site-to-site VPN, Remote VPN
• Configured switches with port security and 802.1x for enhancing customers security.
• Configured Cisco routers as IP Firewall and for NAT. Configure Access lists and policy-based filters.
• Monitoringnetwork traffic using tools like SolarWinds, Wireshark, etc.

Environment: 7200/7600 routers, Cisco 2800/3700 switches RIP, firewall (checkpoint), Cisco ASA, Sophos UTM firewalls, TCP/UDP, Ethernet, TCP/IP, SNMP, VLAN, BGP, EIGRP, OSPF, Cisco routers, Cisco firewalls, Cisco L2/L3 switches, NAT, IPsec, Multicast, VPN, DNS services, MPLS networks, ASA, Wire shark utilities