Network Technical Support
Resume:
Deepak Reddy Vontela
********@*********.***
SUMMARY:
Having 8 years of professional experience in Network engineering with Cisco Certified Network Engineer, performing Network analysis, design, Implementing, capacity planning with a focus on performance tuning and support of large Networks.
Experience in configuration and setting up Cisco routers to perform functions at the Access, Distribution and Core layers
Experience working on Cisco Catalyst Series3750, 4500, 4900, 6500; Nexus 2000, 5000, 6000 and 7000 series switches.
experience as a Splunk Engineer configuring, implementing and supporting Splunk Server Infrastructure across Windows, UNIX and Linux environments
Providing support to Microsoft Active Directory, Microsoft SCCM servers and SQL servers.
Hands-on designing Active Directories using power shell scripts.
Responsible for logical and physical database design, implementation, transforming logical data models into physical databases and defining strategies for database implementation, high performance, replication and failover.
Hands on experience on Design, architect, lead projects, implementing and integrating Cisco VoIP Unified Communications over MPLS network infrastructure worldwide.
Manages all day to day Cisco VOIP CUCM telephone configurations, changes, phone installations, maintenance, and IMAC’s
Hands-on experience on Citrix Provisioning Services,XenApp, App-V, Metaframe PS, XenDesktop and VMware ESX/ESXi
Basic knowledge of Citrix NetScaler, like creating Netscalar IP addresses, enabling packet forwarding, configuring VMACs and route monitors, configuring basic load balancing, basic content switching, some knowledge of FIPS too
Experience with Project documentation tools & implementing and maintaining network monitoring systems and experience with developing network design documentation and presentations using Visio
Experience in managing complex routed networks providing technical support, troubleshooting and configuration.
Configure, maintain and design network security solutions including firewalls (CheckPoint and Cisco ASA), IDS/IPS (CheckPoint and SourceFire), VPN, ACLs, Web Proxy, etc.
Hands on experience on NGFW Firewall management and UTM solutions (IPS/IDS, DLP, Gateway Antivirus, Antispam, Content Filtering, Application Control)
Strong hands on experience on PIX Firewalls
Hands on experience on Operations and management of Aruba based wireless network providing multiple SSID platform for DoD users
Intrusion Detection- monitor and analyze real time security alerts triggered on the network by Cisco Sourcefire
Implementing, maintaining and troubleshooting switching tasks such as VLANs, VTP, VLAN Trunking using ISL and 802.1Q, STP, RSTP, PVST+, EtherChannel using LACP and PAGP, Inter-Vlan routing, CEF and DCEF.
Execution of life cycle process for network equipment, including OS patching and upgrades
Experienced in configuring, deploying, maintaining, and troubleshooting of routing protocols like RIP, OSPF, EIGRP, Policy routing, and BGP on Cisco routers.
In-depth knowledge on Route Manipulation, Filtering and troubleshooting route re-distribution across multiple protocols.
Good Knowledge and understanding of Software Defined Networking (SDN) and Cisco ACI Technology
Designed, implemented and maintains the Single Sign-on integrations using SAML/o-Auth frameworks to connect with other websites, and third party apps
Hands on experience in implementation of SAML Federation projects using Ping Federate, OAuth, OpenID and CA Federation Manager
Hands on experience in using Visio Diagram to design Network Architecture for Data Centers.
Executed troubleshooting technical, networking, and hardware related issues related to servers and other appliances in Data Center.
Worked on implementing first hop redundancy protocols like HSRP, VRRP, and GLBP.
Network security policies like NAT, PAT, VPN, DMVPN, Route-maps and Access lists.
Worked on WAN technologies such as Frame-relay, PPP, HDLC, and DS3.
Maintaining and updating inventory using Network Management Application layer softwares like SNMP, Wireshark, NTP, and Syslog.
Experience with different Network Management Tools and Sniffers like Wireshark (ethereal), Kiwi CatTools, HP-Open view and Zenoss monitoring tool.
Debugging project issues with oauth APIs
Configured Cisco Wireless Networks like IEEE 802.11 a/b/g/n, LWAPP, WLC, WCS, Standalone APs, Roaming, Wireless Security Basics, RF spectrum characteristics.
Performed security operations on ASA firewalls.
Hands on experience in upgrading and troubleshooting OS for cisco firewalls like ASA and FMC.
Design and configuring of OSPF, BGP on Juniper Routers and SRX Firewalls.
Extensive knowledge in developing test plans, procedures and testing various LAN/WAN products and protocols.
Experience working with Cisco Nexus 2148 Fabric Extender and Nexus 5000 series to provide a Flexible Access Solution for a datacenter access architecture.
Expertise in installing, configuring and troubleshooting Juniper EX Switches EX2200, EX2500, EX3200, EX4200, EX4500, EX8200 series.
L2/L3 support of Production Batch, which includes monitoring batch on rotational basis, job failure analysis and bug fixing, batch tuning, basic UNIX system and process management.
Architected and implemented data migration; including initial installation, implementation, customization, integration and customer expectations.
Experience in managing and migration of large scale enterprise networks.
Responsible for the patching and monitoring of vulnerabilities through Nessus Security Center with Nessus Scanners
Experience with different Network Management Tools and Sniffers like Wireshark, NMap, Solar Winds, CISCO works, Netscout, HP-Open view
Experience in configuring and troubleshoot of Wireless LAN Controller and Access Points.
Authentication and termination of IPSec or SSL VPNs using RADIUS, TACACS, and/or IPSec
Experience in implementation of F5 GTM based on topology load balancing methods.
Excellent experience in deploying and troubleshooting on different platforms like Cisco, Juniper and BIG-IP F5LTM Load Balancers for load balancing and traffic management of business application.
Experience in implementing of DNS and DHCP protocols
Hands on experience on Infoblox appliances grid environment for DNS, DHCP and IP Address Management tools (IPv4)
Hands on experience in using Cisco Prime network management software.
Working experience with Cisco Call Manager Express, CUCM and Cisco Unity Express.
Experience with VoIP phones, Dial Peers, Dial Plan and other telephony services related to CME.
Experience with Cisco ASA/Checkpoint/Palo Alto 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.
Hands on experience on cisco fabric interconnects and cisco blade servers.
Expert in NAT, Access List and Object Groups configurations in firewalls.
Experience on Cisco ASA 5500 and ASA 5550, Palo Alto PA-500, PA-3060, PA-5060 series firewalls.
Advanced knowledge on Internet working, OSI model, TCP/IP, network architecture, system security and firewall infrastructure.
Setup and support a network sniffer with Netscout's nGenius Infinistream software to measure application metrics
Experience in Cisco QOS Configuration.
Excellent writing skills as well as communication skills to interact with team members and support personnel and also can act as a mentor to less experienced personnel.
Technical Skills:
Cisco Platforms Nexus 7K, 5K, 2K & 1K, Cisco routers […] 3900, 3600, 2800, 2600, 2500, 1800 series) & Cisco Catalyst switches (6500, 4900, 3750, 3500, 4500, 2900 series), Cisco Wireless Controller 4402, 4404, 5508, 8540, CISCO UCS 6200 series fabric interconnects, CISCO RACK SERVERS, CSR/ASR 9000, 10k, IOS-XR, Cisco ACS, RSA, ASA, FMC and Sourcefire.
Juniper Platforms SRX, MX960, EX Series Routers and Switches, Netscreen 6500, 6000, 5400, SSG, SRX Firewalls
Networking Concepts Access-lists, Routing, Switching, Subnetting, Designing, CSU/DSU, IPsec, VLAN, VPN, WEP, WAP, MPLS, VoIP, Bluetooth, Wi-Fi
Switching VLAN, VTP, STP, RSTP, Inter VLAN routing and Multi-Layer Switching,
Firewall /(IDS/IPS) ASA Firewall […] Checkpoint, Cisco ASA 5585, 5550, 5540, Palo Alto PA-3060/5060, FSWM, CiscoPIX, Cisco/source fire, checkpoint IPS, Tipping point, CISCO NGFW, IBM Proventia
Network Tools Solar Winds, SNMP, Cisco Works, Wireshark, Fluke, PRTG/MRTG, Kiwi CatTools, netscout, Sniffer pro, SDN, Cisco Prime,Netscalar.
Load Balancers ACE, A10 Cisco CSM, F5 Networks (Big-IP, LTM, GTM, ASM), VIPRION F5 Citrix Netscaler, Blue Coat SG8100, AV 510, AV810
WAN technologies Frame Relay, ISDN, ATM, MPLS, leased lines & exposure to PPP, DS1, DS3, OC3, T1 /T3 & SONET
LAN technologies Ethernet, Fast Ethernet, Gigabit Ethernet, & 10 Gigabit Ethernet, Port- channel, VLANS, VTP, STP, RSTP, 802.1Q
Security Protocols IKE, IPSEC, SSL-VPN, SAML 2.0, OAUTH, OPENldap, Q radar, Cisco FireSIGHT
Networking Protocols RIP, OSPF, EIGRP, BGP, STP, RSTP, VLANs, VTP, PAGP, LACP, MPLS, HSRP, VRRP, GLBP, TACACS+, Radius, AAA
Languages Perl, C, C++, Python, PL/SQL, HTML/DHTML, Power shell, SOAP, XML.
Operating Systems Windows 7/XP, MAC OS X, Windows Server […] Linux, Unix, Active Directory, Virtualization(Vmware).
CERTIFICATIONS:
CCNA: Cisco certified Network Associate
CCNP: Cisco Certified Network Professional
EDUCATION:
Bachelors of Technology in Electronics and communication Engineering,
PROFESSIONAL EXPERIENCE:
PWC, Tampa, FL Dec 2015 - Present
Sr. Network Security Engineer
Responsibilities:
Worked on Extensively on Cisco Firewalls, Cisco PIX (506E/515E/525/) & ASA 5500(5510/5540) Series, CHECKPOINT AI, ASR 9000, NGX, Nokia IP 740/530/340 Appliances on IPSO platform.
As a part of Security Engineering team responsible for managing, maintaining and monitoring of Checkpoint and Palo Alto Firewalls
Configured and managed Cisco Unified Communication Manager(CUCM 10.x), and Unity Connections
Configured Cisco ASR 9000, 10k Switches for new gear brought online
Performed OSPF, BGP, DHCP Profile, HSRP, IPV6, and Bundle Ethernet implementation on ASR 9000, 10k redundant pair.
Inspected and installed wireless access points and IAP devices at various locations
Involved in a team which is Working primary in a large WAN/LAN environment (5000+ users) with Cisco 2900, 3000, 4000, 7000, 5500, 6500, 8540 Series Routers, and Catalyst Switches
Managing the changes through export/import of CSV spreadsheets on Infoblox web interface
Configured Cisco ISE server to authenticate wired and wireless clients with certificate and MAC options.
Integrating Configuring RSA SecurID with Cisco ISE for Token based authentications using RSA Native method RSA RADIUS method for user's remote VPN users.
Priorities and optimizing the application performance with Quality of service in cisco ASR routers using application-centric SD-WAN.
Configuring Static, IGRP, BGP, IS-IS, EIGRP, and OSPF Routing Protocols on Cisco ASR 9000, 9001, 9006, 6500 series Routers
Managing DNS, DHCP and fixed IP addresses using Infoblox
Installing and configuring CISCO UCS 6200 series fabric interconnects to increase network portfolio.
Configure and implement Palo Alto Wildfire and URL filtering PAN DB.
Used Infoblox to create and manage newly created DHCP scopes
Deployed Cisco FireSight with SourceFire to implement URL Filtering, IPS, File Filtering, and Security Intelligence.
Configuring, upgrading and verifying the NX-OS operation system
Proficient in design, implementation, management and troubleshooting of Check Point firewalls, Cisco PIX.
Configuration and Monitoring IPS (IBM Proventia)
Configuration, integration, and deployment of Cisco FireSight 2000 management Center, 2 ASA 5500s with Cisco Firepower Services.
Installing and configuring Viprion F5 load balancers.
Assisted with Palo Alto NG Firewall implementation and switch from Checkpoint Firewall.
Maintain, and operate lab wide Vulnerability Assessment deployment (Security Center/ Nessus)
Installed and configured QualysGuard server appliances (both physical servers and virtual cloud based servers), and ran various ad-hoc/custom/standard reports
Installed CISCO UCS rack servers to automate and accelerate deployment for all applications.
Tuned Qradar SIEM to present relevant information to Security Operations Center
Installed CISCO UCS rack servers to provide scalability and capacity for Splunk enterprise deployments.
Managed all windows 2003 servers, Active directory, DNS and WAN Switching.
Experience in implementing Next Generation Firewalls (NGFW) such as Bluecoat ProxySG and other vendors such as Palo Alto networks NGFW for URL filtering
Comprehensive service-performance management platform across UC&C and any other voice, data, and video service from a single pane using Cisco ACI
Involved in a team to support and engineering for server, networking, and storage at company data centers, including disaster recovery.
Managed entire network infrastructure using Cisco Prime network monitoring tool.
Working with Cisco Prime to Configure move & map wireless access points
As a Cisco, Prime Admin involved in setting up the operations center for cisco prime infrastructure.
Involved in a team in Monitoring and analyzing data center server infrastructure and related network environment to ensure reliability and resolve technical problems.
Installing, configuring and supporting Active Directory.
Worked on F5 BIG-IP LTM 8900, configured profiles, provided and ensured high availability
Implemented flow installation in SDN enabled switches for Cisco and Bigswitch using REST
Writing scripts for moving data from old system to new system.
Involved in a team upgrading OS in CISCO ASA and Source Fire.
Created clusters in VMware vCenter and Upgrading VMware infrastructure components using VUM
Used Kiwi-Cat tools to manage configurations from desktop for network devices, including routers, switches and firewalls. Generate network device configuration reports, such as port, MAC, APR and version details
Involved in configuring IP Quality of service (QoS).
Adding security rules and pushing the security policy on Checkpoint Using Smart Update, User Management and Authentication in Checkpoint Firewall
Implementation and maintained intrusion detection/ prevention (IDS/IPS) system to protect enterprise network and sensitive corporate data. For Fine-tuning of TCP and UDP enabled IDS/IPS signatures in Firewall
Responsible in troubleshooting on Cisco ISE added new devices on network based on policies on ISE
Tested components of the Nessus Vulnerability Scanner within an Agile SDLC
Involved as a Splunk Admin in capturing, analyzing and monitoring front end and middle ware applications.
Used NetScout for troubleshooting firewall related packet drops and reachability issues.
Involved in the designing/development of new proposal system for MTVN by using SQL and PL/SQL.
Implemented the SAML federated services for vendors Benefits Express, MetLife, Prolease, and Cven
Design, implementation and operational support of routing/switching protocols in complex environments including BGP, OSPF, EIGRP, Spanning Tree, 802.1q, etc.
Estimated Project costs and created documentation for project funding approvals.
Planned resources and presented project status to higher management.
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.
Installing, configuring Cisco Catalyst switches 6500, 3750 & 3550 series and configured routing protocol OSPF, EIGRP, BGP with Access Control lists implemented as per Network Design.
Installed different software on the systems. Install and managing network devices including Hubs, Switches.
Working in high availability Nexus Environment and provide Level 3 Network Support.
Configuring, upgrading and verifying the NX-OS.
Basic and advanced F5 GTM load balancer configurations, general troubleshooting of the F5 load balancers.
Modified internal infrastructure by adding switches to support server farms and added servers to existing DMZ environments to support new and existing application platforms.
Analyzed customer application and bandwidth requirements, ordered hardware and circuits, and built cost effective network solutions to accommodate customer requirements and project scope.
Configured routers and coordinated with LD Carriers and LECs to turn-up new WAN circuits.
Providing Level 3 support to customers, resolving issues by attending to conference calls.
Providing Level 3 Engineering and Support to other internal network engineers and contractors.
Designing and installing new branch network systems. Resolving network issues, running test scripts and preparing network documentation.
Performed OSPF, BGP, DHCP Profile, HSRP, IPV6, and Bundle Ethernet implementation on ASR 9000 redundant pair.
Use of multiple network monitoring tools (netscout, Sniffer pro, etc.) to resolve lan/wan issues
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.
Configured various Router interfaces like ATM interface, T3 & Channelized T1 interfaces
Modified internal infrastructure by adding switches to support server farms and added servers to existing DMZ environments to support new and existing application platforms.
Analyzed customer application and bandwidth requirements, ordered hardware and circuits, and built cost effective network solutions to accommodate customer requirements and project scope
Configured egress and ingress queues for ISP facing routers using CBWFQ.
Generating RCA (Root Cause Analysis) for critical issues of layer1/layer2/layer3 problems.
PetSmart, Philadelphia, PA. Jan 2015 – Nov 2015
Sr. Network Engineer
Responsibilities:
Worked on Cisco ASA 5540 Series that includes rule deployment, configuration using Network & Port objects. Deployment of DMZ and troubleshooting ASA Cluster failovers.
Experience on Deploying and decommission of VLANs on core ASR 9K, Nexus 7K and 5K and its devices.
Troubleshooting of Cisco 2900, 3900, 6500, 7500, 7200, ASR 1000, 9000, Juniper(JUNOS) MX, EX Series routers.
Utilizing Cisco 2500 and 5500 series controllers and 3702, 3602 and 3502 LWAPP access points
Performed load balancing and application level redundancy by deploying F5 BIG-IP LTM 3900.
Involved in the configuration and maintenance of IPsec Site-Site VPN.
Strong hands on and exposure to Checkpoint & Palo Alto on a regular basis.
Scripted the conversion of IP Address Management from an XL spreadsheet into Infoblox Grid Manager
Upgraded and created new forwarding zones, subnets and DHCP scope in Infoblox
Deployment of Sourcefire and Firesight management center for various Sourcefire enabled firewalls
As a Cisco Prime Administrator involved in setting up the cisco prime server settings.
Integrating ISE with external identity stores such as Windows AD, Cisco ACS LDAP.
Set up Cisco ISE Identity Services Engine
Migration of IPSec VPN services from ASA to Palo Alto NGFW
Cisco ACI, VLAN, VXLAN, and network virtualization using generic routing encapsulation (NV-GRE), which is combined and bridged together to create a logical network/domain as needed.
Involved in Active Directory design and maintenance.
Involved in server team using cisco interconnects for cisco blade servers
Performed basic security and ACL administration on Juniper SRX firewalls. That includes day to day rule deployment, troubleshooting using data flow analysis and packet capture.
Planned and implemented network design, including Wide Area Networking (WAN), Local Area Networking (LAN), Multiple Protocol Labeling Switching (MPLS), DS3.
Integrate applications with OpenID Connect with different API's
Troubleshoot and hands on experience on security related issues on Cisco ASA/PIX, Checkpoint and Palo Alto Firewalls.
Monitored network for optimum traffic distribution and load balancing using Solar winds
Configured OpenLDAP with UNIX pam, and enabled users to authenticate against LDAP
Actively involved in fault management and change management of the network in order to provide high availability.
Deployed Palo Alto Firewalls for web filtering and application control.
Worked on MPLS complex routing changes on BGP, OSPF & EIGRP where P2P circuits are implemented and preferred.
Troubleshoot network access issues with other enterprise support groups.
Worked on skillful deployment of Layer-2 technologies like VLANS, VTP, STP, RSTP, Inter-VLAN routing, VLAN Trunking, Ether Channels, VLAN access-maps and port security.
Experience with working on latest cisco switches like Nexus 2000, 5000 and 7000 series switches while implementing advanced features like VDC, and VPC.
Upgraded load balancers from Radware to F5 BigIP v9 which improved functionality and scalability in the enterprise.
Troubleshooting, optimizing and documenting LAN/WAN technologies and T1/T3 WAN technologies.
Configured VPN routers for remote sites access with correct security policies.
Efficient in configuring and implementing load balancers like Cisco ACE, and A10
Configuring/Troubleshoot issues with the following types of routers Cisco (7200, 6500, 4500,1700, 2600 and 3500 series), to include: bridging, switching, routing, Ethernet, NAT, and DHCP, as well as assisting with customer LAN /MAN, router/firewalls.
Performing troubleshooting for IOS related bugs by analyzing past history and related notes.
Modified internal infrastructure by adding switches to support server farms and added servers to existing DMZ environments to support new and existing application platforms.
Configured switches with port security and 802.1 xs for enhancing customer's security.
Monitored network for optimum traffic distribution and load balancing using Solar winds.
Hands-on experience in deploying GRE tunnels, Remote Access VPN and Site-to-Site VPN.
Configured STP for loop prevention on Cisco Catalyst Switches.
Day to day network trouble tickets and problems, troubleshoot to resolution
Proactively monitor, troubleshoot, and optimize network performance and application interfaces to the network
Install, upgrade, support and troubleshoot applications hosted on windows server 2000/2003/2008.
Handled installation of Windows NT Server and Windows NT Workstations.
Handled Tech Support as it relates to LAN & WAN systems.
Experience in working with Cisco Nexus 5000 series switches for data center.
Keolis, Boston, MA Nov 2013 – Dec 2014
Net Security Engineer
Responsibilities:
Experience with Firewall migrations from PIX firewall to Cisco ASA and Juniper SRX firewall appliances.
Provided remote Technical support on implementation of technology using various Juniper Network & Security products and applications and resolve product related issues through research and troubleshooting.
Involved in configuring and troubleshooting Juniper Firewalls including UTM features like anti-virus, deep inspection (IDP), URL filtering and screening.
Worked on F5 BIG-IP LTM 8900, Citrix and Netscalar configured profiles, provided and ensured high availability
Reserve static IP addresses and create DNS records in Infoblox
Infoblox Grid deployment and support for DHCP and DNS at multiple sites
Responsible for Cisco ASA and Palo Alto configuration and administration of networks.
Configuring Virtual Chassis for Juniper switches EX-4200, Firewalls SRX-210
Troubleshoot traffic passing managed firewalls via logs and packet captures
Involved as Platform Engineer for Sourcefire including all 4.10 and NG and NGFW
Integrated web application delivery controller(ADC).
Involved in a team responsible for Network security management by implementing and managing NGFW systems.
Virtual Private Networks on Cisco ASAs with AnyConnect, Cisco ISE for authentication, as well as site to site VPN
Implemented new Cisco ASA's, installed the framework for Cisco ACI and implemented new F5 LTM's and GTM's.
Creating, implementing and testing Citrix NetScaler ADC (Application Delivery Controller) responder
policies in order to meet DDoS defense strategies
Worked on Converting the Partner IPSEC VPN from one Data Center to Another Data Center
Expertise in installing, configuring and troubleshooting Juniper EX Switches (EX2200, EX2500, EX3200, EX4200, EX4500, EX8200 series).
Performed various configurations using the CISCO SDM like configuring VPN, Security Audits, Firewalls, VLANS.
Worked on software based ADC on VMware
Responsible in troubleshooting on Cisco ISE added new devices on network based on policies on ISE.
Configuring rules and Maintaining Palo Alto Firewalls & Analysis of firewall logs using various tools
Worked extensively in Configuring, Monitoring and Troubleshooting Cisco's ASA 5585 Security appliance
Responsible for Cisco Proxy ESA and WSA.
Everyday performance with the Cisco Iron ports - WSA S170 (Web Security Appliance) Version: 8.0.6-119, ESA C370 (Email Security Appliance) Version: 8.5.6-074, and M670 - Content Security Management Appliance Version: 8.3.6-028
Implementation and Configuration (Profiles, I Rules) of F5 Big-IP LTM-6400 load balancers
Installation and configuration of CISCO VPN concentrators 3000 for VPN tunnel and implementation of SDM for IPsec VPN.
Managed the F5 BigIP GTM/LTM appliances to include writing iRules, SSL offload and everyday task of creating WIP and VIPs.
Responsible for excellent customer management/resolution, problem solving and debugging skills with good verbal/written communications and presentation skills.
Everyday performance with the latest version 13.3 of Junos-Space
Daily responsibilities with Unix Bastion Host loggers and trouble shooting.
Galaxy Solutions, Hyderabad, India Sep 2011 – Oct 2013
Network Engineer
Responsibilities:
Managing the service request tickets within the phases of troubleshooting, maintenance, upgrades, fixes, patches and providing all-round technical support.
Commissioning and Decommissioning of the MPLS circuits for various field offices.
Preparing feasibility report for various upgrades and installations.
Ensure Network, system and data availability and integrity through preventive maintenance and upgrade
Troubleshooting complex networks layer 1, 2to layer 3 (routing with MPLS, BGP, EIGRP, OSPF protocols) technical issues.
Providing support to networks containing more than 2000 Cisco devices.
Performing troubleshooting for IOS related bugs by analyzing past history and related notes.
Carrying out documentation for tracking network issue symptoms and large scale technical escalations.
Involved in L2/L3 Switching Technology Administration including creating and managing VLANs, Port security, Trunking, STP, Inter-Vlan routing, LAN security.
Worked on the security levels with RADIUS, TACACS+.
Modified internal infrastructure by adding switches to support server farms and added servers to existing DMZ environments to support new and existing application platforms.
Configured switches with port security and 802.1 xs for enhancing customer's security.
Validate existing infrastructure and recommend new network designs.
Created scripts to monitor CPU/Memory on various low end routers in the network.
Configuring and troubleshooting multi-customer network environment.
Involved in network monitoring, alarm notification and acknowledgement.
Implementing new/changing existing data networks for various projects as per the requirement.
Installed and maintained local printer as well as network printers.
Microland Limited, Hyderabad, India July 2008 – Aug 2011
Network Administrator
Responsibilities:
Performed daily maintenance, troubleshooting, configuration, installation and documentation of all network components with in the network.
Respond to all system problems on a 7X24 basis and take part in on-call rotation.
Involved in network upgrades and implementation.
Configuration of CISCO Routers 2800 Series and 3550 series switches.
TCP/IP network planning, Implemented IPv4 addressing, subnetting, route summarization and distribution.
Configured routing with EIGRP, static routes and switching with VLANs, VTP, and STP.
Configured Access lists on the boundaries of the network either inbound or outbound.
Installed/upgraded operating system, anti-virus and monitoring tools. Setting up & maintenance of LAN & WAN networks.
Enabled SNMP traps for Cisco Monitoring tool to monitor traffic and check the regular health of servers and network devices.
Configured wireless protocols, authentication mechanisms (802.11*, WPA) and installed the Access Point as per the client requirements.
Knowledge on VOIP protocols like H.323, RTP, SIP and good understanding about VOIP devices
Performed routine maintenance of network hardware and software of LAN/WAN (Frame-Relay, NAT, DHCP, SNMP)
Implemented VLANs, DHCP server, DNS configuration, NAT/PAT in a small network environment.
Implemented WAN technologies like Frame relay, HDLC and PPP in the branch office network connectivity.
Installed wireless routers, operating system, cabling and termination, connectivity to switch rooms.
Performed onsite installations, technical support, troubleshooting and maintenance of network equipment, installed and upgraded software and hardware equipment.
Coordinated with higher-level support and external vendors for resolution.
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