Network Engineer Cisco
Resume:
SREENU K
******.***************@*****.***
SUMMARY:
Cisco certified senior network engineer with 8+ years of experience in routing, switching, firewall technologies, system design, implementation and troubleshooting of complex network systems.
Strong hands on experience in installing, configuring and troubleshooting of Cisco 7600, 7200, 3900, 3600, 2900, 2600, 2500 and 1800 series routers, Cisco Catalyst 6500, 4500, 3750, 2950 and 3500 series switches.
Hands-on experience on 6500,7600, ASR 1000, ISR routers and Cisco Cloud Services Router CSR1000v.
Proficient in Cisco IOS for configuration & troubleshooting of routing protocols: MP-BGP, ISIS, OSPF, LDP, EIGRP, RIP, MPLS, VRF and BGP v4.
In-depth knowledge and hands-on experience in ISP Routing Policies, Network Architecture, IP Sub netting, VLSM, TCP/IP, NAT, DHCP, DNS, FT1 / T1 / FT3 / T3 SONET POS OCX / GigE circuits, Firewalls.
Designed and implemented Spanning-Tree Feature - Port Fast, Backbone Fast, Uplink Fast Loop Guards, BPDU Guards, and Root Guard’s.
Hands on experience in deployment of GRE tunneling, SSL, Site-Site IPSEC VPN and DMVPN.
Designed, Configured and successfully implemented Port Security for Source based MAC Filtering, HSRP, VRRP, GLBP, and Ether Channel for network redundancy and load-balancing.
Working Experience working with Nexus 7010, 5020, 2148, 2248 devices.
Configured security policies including NAT, PAT, and VPN, Route-maps, Prefix lists and Access Control Lists.
Responsible for Checkpoint firewall management and operations across our global networks.
Hands on experience on PPP Authentication protocols (CHAP, PAP).
Worked on Network Topologies and Configurations, Routers, Frame Relay, Token Ring, ATM, Bridges, Switches, Hubs and Repeaters.
Extensive experience in WAN Technologies, Switching Technologies along with Failover Mechanisms and Inter VLAN Routing types.
Possess strong understanding of WAN (Leased line / MPLS), LAN & TCP/IP Protocol suites, RIP, IGRP, EIGRP, and OSPF & Basic BGP Protocols; Working skills with leased line/MPLS links, Mux, PCM, MDF, T1/E1 Connections, MLLN and maintaining Antivirus Clients.
Designing, Implementing and Troubleshooting Cisco Routers (2800,2900,3900,3800,7600) using Static, RIP, IGRP, OSPF, EIGRP & experience with Checkpoint, Cisco PIX & ASA devices
Great exposure to SDN and Network Function Virtualization (NFV) technologies like Cisco ACI.
Well experienced in configuring HSRP, GLBP, ICMP, PPP, PAP, CHAP and SNMP.
Worked on Infoblox for managing core network services like DNS, DHCP and IP address.
Experience in Implementing, administrating, migration, up gradation and troubleshooting of F5 BIGIP LTM, GTM modules.
Expert working knowledge including the ability to setup, configure, upgrade, manage and troubleshoot Cisco routers, switches, VPN concentrators, firewalls, 802.11 wireless access points and load balancers.
Strong hands on and exposure to Checkpoint & Palo Alto on a regular basis.
Experience with F5 load balancers and Cisco load balancers (CSM, ACE and GSS).
Basic and advance F5 load balancer configurations, including migrating configuration From Cisco ACE to F5 and general troubleshooting of the F5 load balancers.
Experience with the escalation problems for Routing, Switching and WAN connectivity issues using ticketing systems like remedy and ServiceNow.
Advanced knowledge in Cisco ASA 5500 series and PIX installation, configuration and maintenance, configuration and installation of IOS security features and IPS, security risk analysis, attack mitigation & penetration tests based on LPT methodology.
Worked with Aruba WLAN, Cisco WLAN, Meraki Wireless control modules.
Moderate knowledge in configuring and troubleshooting Cisco Wireless networks; LWAPP, WLC, WCS, stand-alone apps, roaming, wireless security basis, IEEE 802.11a/b/g, RF spectrum characteristics
Highly motivated with the ability to work independently or as an integral part of a team and committed to highest levels of professional.
Successfully put in Palo Alto PA 3060 firewalls to protects information Center and provided L3 support for routers/switches/firewalls
Worked extensively on Palo Alto, Juniper Net screen and SRX Firewalls.
Responsible for Check Point and Cisco ASA &Palo Alto Firewalls environment
Experience in Installation, Configuration and Administration of Windows Servers [2003,2008,2012] Active Directory, FTP, DNS, DHCP, TFTP, Linux OS under various LAN and WAN environments Worked extensively on Cisco Firewalls, Cisco PIX (506E/515E/525) and ASA 5500 (5510/5540) series.
Designed and implemented Cisco ASA and Cisco IOS routers for site to site IPSEC VPN connections to internal Citrix Environment.
Accountable for maintaining SEP Antivirus clients, IP phone & video conference and following-up with respective vendors for other issues.
Implemented Zone primarily based Firewalling and Security Rules on the Palo Alto Firewall
Exposure to wild hearth feature of Palo Alto.
Constructed IPSEC VPN tunnels in Palo Alto Firewalls in various locations.
Implementing security policies using Cryptography, ACL, SDM, PIX Firewall, IPsec, VPN, and AAA Security on different series of routers.
Worked on Bluecoat proxy server, Tipping Point Intrusion Protection System management.
Installation & configuration of Microsoft Proxy Server 2.0 & Blue Coat Proxy.
Configuration, Troubleshooting and Maintenance of Palo Alto Firewalls - PA200, PA2000 series, PA3000 series, PA4000 series and PA5000 series.
Worked on Load Balancer F5 LTM, GTM series like 6400, 6800, 8800 for the corporate applications and their availability, EMs, Firepass and ASM.
Designing and deploying dynamically scalable, highly available, fault tolerant and reliable applications on AWS.
Monitored network traffic using tools like Solar Winds, Wireshark, NetScaler, Netflow and Tcpdump.
Proficient in using Solar Winds Network Management tools like Network Performance Monitor (NPM), Net flow Traffic Analyzer, Network Configuration Manager (NCM) and Cisco Prime.
Utilized Security Information and Event Management (SIEM), Intrusion Detection & Prevention (IDS / IPS), Data Leakage Prevention (DLP), forensics, sniffers and malware analysis tool
Knowledge on python scripting for automated implementation techniques.
Unix/Linux systems administrator with experience configuring, monitoring, upgrading and maintaining systems hardware, software and related infrastructure.
Researched, designed, and replaced aging Checkpoint firewall architecture with new next generation Palo Alto appliances serving as firewalls and URL and application inspection.
Experience with Change management process and Project documentation tools like Excel and VISIO.
TECHNICAL SKILLS:
Protocols& Standards
LAN, WAN, WLAN, VRF, VDC, TCP/IP, NAT, PAT, MPLS, GETVPN, GDOI, DMVPN, IPv4, IPv6, VPN, L2TP, IPsec / ISAKMP, IKE, VoIP, VSS, OSPF, OSPFv3, EIGRP, BGPv4, VLANs, Layer 3, Switching, HSRP, GLBP, VRRP, QoS, TACACS+, RADIUS, 802.1X, PKI, LDAP, POE
Cisco Platforms
Nexus 7K, 5K, 2K & 1K, Cisco routers (7600, 7200, 3900, 3600, 2800, 2600, 2500, 1800 series) & Cisco Catalyst switches (6500, 4900, 3750, 3500, 4500, 2900 series) Huawei AR series Routers
Juniper Platforms
M, J and MX Series Routers
Networking Concepts
Access-lists, Routing, Switching, Subnetting, Designing, CSU/DSU, IPsec, VLAN, VPN and Wireless Technology
Firewalls
Cisco ASA, Palo alto Juniper NetScreen and Juniper SRX
Security Protocols
IKE, IPSEC, SSL-VPN
Load Balancers
F5 Networks (Big-IP) LTM 8900 and 6400.
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 lines & exposure to PPP, DS1, DS3, OC3, T1 /T3 & SONET
Network Tools
IBM ITNM, Splunk, Stealth Watch, Solar Winds, SNMP, Cisco Works, Wireshark
Networking Protocols
RIP, OSPF, ISIS, EIGRP, BGP, STP, RSTP, VLANs, VTP, PAGP, LACP, MPLS, HSRP, VRRP, GLBP, TACACS+, Radius, AAA
Operating System
Windows 7/XP, Windows Server 2008/2003, Linux, UNIX
CERTIFICATIONS:
Cisco Certified Network Associate (CCNA)
Cisco Certified Network Professional (CCNP)
PROFESSIONAL EXPERIENCE:
EMC, Santa Clara, CA Aug 15 – Present
Sr. Network Engineer
Responsibilities:
Hands-on expertise with routers 2600, 2900, 3600, 3900, 7200, 7600, ASR-901, ASR-903, ASR 5500, ASR-9010
Experience working with Juniper Routers (MX960, MX480, M320) and Switches (EX2400, QFX Virtual Chassis Switches) with BGP, OSPF, VSTP, MST layer 2 and layer 3 Technologies
Worked on Nexus platform 9K, 7010, 5K series and FEX (2248, and 2232) and deployed VPC, VDC and OTV, Fabric Path and successfully implemented VSS on the Cisco catalyst switches (6500, 6509,6800).
Design Next generation data centers with Nexus, ACI, Openstack, DCI, EPGs/bridge domains, OTV, and VXLAN.
Configured redundant WAN links with Internet circuit and MPLS with BGP/SLA tracking for failover on Cisco ASR 1001.
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.
Performed OSPF, BGP, DHCP Profile, HSRP, IPV6, Bundle Ethernet implementation on ASR 9K redundant pair.
Implemented Site-site IPSEC VPN at our new integration to allow connectivity to our resources until we could deploy MPLS.
Hands on experience to manage Palo Alto and check point with including set up new infrastructure, adding new route
Sound knowledge of virtual firewalls like checkpoint VSX, IDS, IPS as well as encryption techniques.
based policy, NAT, site to site VPN, GlobalProtect.
Configured policy statements, and routing instances and support on MPLS-VPN, VRF.
Expertise in maintenance of layer2 switching tasks - VLAN, VTP, RSTP, configuration of ether channel with LACP and PAGP along with troubleshooting of inter-VLAN routing.
Configure VRRP & GLBP and VLAN Trunking 802.1Q & ISL, STP, Port Security on Catalyst 6500 switches.
Well Experienced in configuring protocols HSRP, GLBP, VRRP, ICMP, IGMP, PPP, HDLC, PAP, CHAP, and SNMP.
Working with Checkpoint Support for resolving escalated issues
Involved in Configuration of Access lists (ACL) on checkpoint firewall for the proper network routing for the B2B network connectivity
Experience in developing cloud strategies, roadmaps, architecting (hands-on) new cloud solutions end to end or enterprise level AWS/Azure migrations
Troubleshooting the Network Routing protocols (BGP, EIGRP, ISIS and RIP) during the Migrations and new client connections.
Maintained and configured all Extended Access Lists securing VLAN 802.1q trunks to W2003/8 servers, STP, OSPF, Port-Channels, Classes, Group, Objects, Load-Balancing, ACS, Wireless
Configuration of routing protocols EIGRP and BGP for small to medium sized branches based on company branch standards, including redistribution and route maps.
Implement and troubleshoot Static NAT, Dynamic NAT, PAT, Spanning Tree Protocols (STP), MSTP, RSTP.
Designed and configured the commands for QoS and Access Lists for Nexus 7K and 5K.
Experience with designing and configuring secure Virtual Private Cloud (VPC) through private and public networks in AWS by creating various subnets, routing table, Network ACL, NAT gateways.
Experience with convert Checkpoint VPN rules over to the Cisco ASA solution and migrating with Cisco ASA VPN experience.
Configuration and Administration of Checkpoint, Palo Alto Firewalls to manage large scale firewall deployments.
Configuring rules and Maintaining Checkpoint, Palo Alto & Analysis of firewall logs using various tools.
Developed redundant load-balancing design based on four Juniper MX 960 and two SRX 5600 using route leaking and policy routing.
Performed Network Security Assessment and implemented security features such as network filtering, SSH, AAA, SNMP access lists, VTY access lists and HSRP authentication.
Experience in VPN, Checkpoint IDS-IPS and McAfee Antivirus Endpoint Protection Solution.
Worked with Palo Alto firewalls PA250, PA4050, PA3020 using Panorama servers, performing changes to monitor/block/allow the traffic on the firewall.
Extensive knowledge in implementing and configuring F5 Big-IP LTM 3900, and 6900 Load balancers.
Implementation of Site-to-Site VPNs and DMVPN over the internet using IKE Phase 1 and IKE Phase 2 based on traffic with ASA 5500 series Firewalls.
Worked for Radware, Websecure, Websense, Wireless, McAfee Intrushield, IDS/IPS, and Network General Sniffer Pro DSS/RMON projects.
Experience with Blue Coat URL filtering with whitelisting and blacklisting URL, creating rules for content filtering.
Provided full visibility and notification of authorized and unauthorized network access with integration of CISCO ASA/FWSM and Network Access Control (NAC) solution.
Managed the F5 BigIP GTM/LTM appliances to include writing iRules, SSL offload and everyday task of creating WIP and VIPs.
Configured and maintained IPSEC and SSL VPN’s on Palo Alto Firewalls. Implemented Zone Based Firewalling and Security Rules on the Palo Alto Firewall. Planning and configuring the routing protocols such as OSPF, IS-IS, RIP, and Static Routing on the routers.
Configured and troubleshooting Aruba Wireless products like Access Points and Mobility Access Switches.
Worked on Load Balancer F5 LTM, GTM series like 6400, 6800, and 8800
Configuring VMware and managing and maintenance of VMs (virtual server) and Server Virtualization using VMware vSphere, Microsoft Hyper-V.
Secure, manage, and document the local area network consisting of a Cisco 2811 router, an FTP Server running Windows Server 2012, multiple wireless routers, and all cisco access switches.
Configured device security using Cisco IOS AAA with TACACS+ and RADIUS, AAA with TACACS+ and RADIUS, Local privilege authorization fallback.
Worked with monitoring tools like SolarWinds, Cisco prime, Net Flow, NetScout and network packet capture tools like Wire-shark.
Maintain and assign IP addresses and DNS entries for high visibility projects using Solarwinds IP manager. (IPAM).
Configured DHCP scope into Infoblox for new sites which includes subnets for wireless, voice, security and data centers.
Setup user and group policies using Active Directory and implemented system and data security using Windows Firewall.
Implemented IF-MAP to provided interoperability and intergration for aruba and juniper networks
Worked on Bluecoat proxy server, Tipping Point Intrusion Protection System (IPS) management
Working experience performing Incident, change management using ticketing tools such as ServiceNow, Remedy.
Involved in designing of LAN (Ethernet) and WAN infrastructure for the new Data Centre Using MS Visio.
Configured Cisco 1231 Access points with 5959 and 4941 antennas (802.11/a/g).
Set up and troubleshoot secured wireless access points (WAP) and wireless LAN controller (WLC) for broadband internet.
Planning, deploying LANs/WANs voice interconnection using protocols VoIP, H.323, SIP, ISDN, L1-L3.
Environment:
Cisco 2948/3560/4500/3560/3750/3550/3500/2960/6500 switches and Cisco 3640/12000/7200/ 3845 /3600 / 2800 routers, Cisco Nexus 7K/5K, Cisco ASA 500, F5 BIGIP LTM, RIP, OSPF, BGP, EIGRP, LAN, WAN, VPN, ASM, APM.
West Safety Services, Denver, CO Jan 2014 – March 2015
Network Engineer
Responsibilities:
Installation and Configuration of Composite Network models consists of Cisco 7600, 7200, 3800 series routers and Cisco 2950, 3500, 5000, 6500 Series switches.
Experience in layer-3 Routing with, ASR 9K, Nexus 7k,5k,3k,2k Cisco 7600, 7200, 3925 series
Deployed Juniper (JunOS) switches EX4500 and EX4200, routers MX960, MX480.
Experience working with Cisco Nexus 2148 Fabric Extender and Nexus 5000 series to provide a flexible Access Solution for Data Center access architecture.
Migrated existing devices from Cisco Catalyst 6500 series to Nexus 7k, 5k, 2k in Data Center.
Consolidated multi-tiered environment into a pair of Nexus 7000 switches using VPC and VRF.
Experience with designing, implementing and troubleshooting Cisco routers and switches using different routing protocols like OSPF, EIGRP, BGP, ISIS and MPLS L3 VPN, VRF.
Providing daily network support for national wide area network consisting of MPLS, VPN and point-to-point site.
Configuration and troubleshooting of Site to Site as well as Remote Access VPN on Cisco ASA 5520 and Checkpoint firewalls.
Experience in Palo Alto (PA 2000, PA 3000) design and installation (Application and URL filtering, Threat Prevention, Data Filtering)
Configuring rules and Maintaining Palo Alto Firewalls & Analysis of firewall logs using various tools.
Configured OSPF redistribution and authentication with type 3 LSA filtering and to prevent LSA flooding.
Configured OSPF over frame relay networks for NBMA and point to multipoint strategies.
Configuration and implementation of Check Point Firewalls, IDS/IPS, Bluecoat Proxy, CISCO ASA.
Performing troubleshooting on slow network connectivity issues, routing issues involves OSPF, BGP and identifying the root cause of the issues.
Modified internal infrastructure by adding switches to support server farms and added servers to existing DMZ environments to support new and existing application platforms.
Assisted in MPLS migrations, implemented a backup for the existing WAN connection using site-to-site IP Sec VPN tunnels.
Worked with team Managing and configuring Aruba Wireless controller devices (7210, 7240) and Cisco Access Points.
Configuration and Administration of Checkpoint, Palo Alto Firewalls to manage large scale firewall deployments
To secure configurations of load balancing in F5, SSL/VPN connections, Troubleshooting CISCO ASA firewalls, and related network security measures.
Virtual Switching System (VSS) implementation on 6509s (VS-S2T-10G SUP).
Performed switching technology administration including VLANs, inter-VLAN routing, Trucking, STP, RSTP, IGMP, port aggregation and link negotiation.
Implementation of HSRP, IPsec, Static Route, IPSEC over GRE, Dynamic routing, DHCP, DNS, FTP, TFTP.
Responsible for turning up BGP peering and customer sessions, as well as debugging BGP routing problems.
Establishing Multicast management on ipv6 networks for communication between hosts and routers using IGMP protocol.
Support third party technologies within the ACI ecosystem such as VMware ESX, OpenStack.
Design solutions using Cisco DMVPN/IWAN features. Involved in the troubleshooting aspects of complex network infrastructure using the routing protocols like EIGRP, OSPF & BGP.
Configured and troubleshot BIG-IP F5 load balancer LTM creating virtual servers, nodes, pools, and I Rules in LTM module
Used the infranet controller server in conjunction with a juniper secure services gateway (ssg) device to provide the NAC policy enforcement.
Provided application level redundancy and availability by deploying F5 load balancers LTM, APM.
Performed F5 appliance (LTM, GTM, APM, and ASM) maintenance and system upgrades including hot fixes and security configurations.
Experience with convert Checkpoint VPN rules over to the Cisco ASA solution and migrating with Cisco ASA VPN experience.
Experience in Palo Alto (PA 2000, PA 3000) design and installation (Application and URL filtering, Threat Prevention, Data Filtering)
Worked on Multi-vendor platform with Checkpoint, Fortinet and Cisco firewalls requesting net flow for security compliance, coding, and pushing firewall rules after approval and troubleshoot incidents as required.
Performing network monitoring of LAN/WAN and providing analysis using various tools like Wireshark, Solarwinds, SNMP and NetFlow.
Experience in installation and administration of Windows server 2003 and 2008.
Monitor Performance & capacity of the WAN links using SolarWinds and NetQoS report analyzer.
Utilize BMC remedy ticketing system to monitor, troubleshoot and resolve alarms on sites.
Troubleshooting Aruba Wireless issues like slow performance, intermittent connectivity, authentication failure, low signal strength, Replacing AP's and controllers.
Maintained network security using CISCO PIX, Checkpoint Firewall 1, CiscoSecure, NetScout, router access list and various other network security technologies
Installed, configured, and maintained a VMware ESX 5.5 virtual server/desktop environment.
Worked on FTP, HTTP, DNS, DHCP servers in windows server-client environment with resource allocation to desired Virtual LANs of network
Create, Run, and Debug Python scripts and apply that knowledge to handling common networking tasks.
Environment:
Cisco Catalyst 2960/3750/4500/6500 Series Switches, Cisco 2800/2900/3000 Series ISR’s and Cisco 3640/12000 /7200/3845/3600/2800 routers, Cisco Nexus 7K, Cisco ASA 5500, Checkpoint, windows server 2003/2008, F5 BIGIP LTM/GTM, ACL, RIP, OSPF, BGP, EIGRP, LAN, WAN, VPN, HSRP
United Nations, NY Aug 2012 – Nov 2013
Network Engineer
Responsibilities:
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.
Experience configuring VPC, VDC and ISSU Software upgrades on Cisco Nexus 7010.
Design, implementation and operational support of routing/switching protocols in complex environments including BGP, OSPF, EIGRP, Spanning Tree, 802.1q, etc.
Implemented Cisco Layer 2 Switches 3750, 4500, 6500 in multiple VLAN environment with the use of inter- VLAN, HSRP, ether channel.
Experience configuring VSS (Virtual Switching System) in Cisco Switch 4500.
Worked on conversions to BGP WAN routing, which will be to convert WAN routing from OSPF to BGP (OSPF is used for local routing only) that involves new wan links.
Configured firewall switch module on Cisco 6506 distribution layer switches, configuring VTPs, Trunking, NAC product, Inter-Vlan routing, port fast, uplink fast, backbone fast on access layer switches.
Enabled STP attack mitigation (BPDU Guard, Root Guard), Using MD5 authentication for VTP.
Tested and implemented various BGP attributes such as Local Preference, MED, AS-PATH, Community, Extended community using route-maps.
Maintained and Configured Checkpoint VSX with firewall virtualization.
Hands-on experience with WAN (ATM/Frame Relay), Routers, Switches, TCP/IP, Routing Protocols (BGP/OSPF), and IP addressing.
Responsible for turning up BGP peering and customer sessions, as well as debugging BGP routing problems.
Involved setting up the TFTP server for backing up the IOS images and configuration files of Cisco Routers and Switches and troubleshooting the file servers.
Work in an enterprise network environment with dynamic routing using OSPF and BGP for external connectivity.
Back up a Cisco IOS to a TFTP server and Upgraded and restored a Cisco IOS from TFTP server.
Installing new equipment to RADIUS and worked with MPLS-VPN and TACACS configurations.
Knowledgeable about IP Multicast, IGMP V2 and V3, CGMP, IGMP Snooping, PIM-Sparse and Dense Mode, F5/Big-IP Load Balancer.
Monitor and troubleshoot BGP, EIGRP, TI circuits, and cellular backup circuits via ICMP and SNMP ticketing systems.
Responsible for implementation/installation of LAN/WAN/SAN, Aruba Switches, Aruba Wireless AP’s and Aruba Virtual Controllers
Supported Infoblox appliances grid environment for DNS, DHCP and IP Address Management IPAM tools (IPv4).
Converted Checkpoint VPN rules over to the Cisco ASA solution and worked on RSA secure IDs to providing.
Responsible for Configuring Site to Site VPN on Cisco ASA 5500 series firewall between Head office and Branch office.
Configure and Install F5 New Virtual Servers, Profiles, IRules, Pools, Nodes, Generate CSR Certificate, SSL Certificates Etc.
Engineered traffic management solutions, including designing, low level engineering for F5 LTM, GTM, ASM, APM environment.
Performed the maintenance of Active Directory and replication scheme, DNS/DHCP services.
Updating the SNMP string for various Routers and Switches in Solar Winds for monitoring purpose.
Worked on SIP protocol on TCP and UDP connections and proficient with VOIP technologies
Configured cisco wireless networks like IEEE 802.11 a/b/g/n, LWAPP, WLC, WCS, standalone Aps, roaming, wireless security basics, RF spectrum characteristics.
Install Windows Server 2003, configure IP addresses, network printers and configure Client Access for PCs.
Performed the maintenance of Active Directory and replication scheme, DNS/DHCP services
Experience with the escalation problems for Routing, Switching and WAN connectivity issues using ticketing systems like remedy and servicenow
Daily administration of Windows servers including creation/deletion of new user accounts, print services, backups. Installed and Maintained software license agreements.
Updating the SNMP string for various Routers and Switches in Solar Winds for monitoring purpose.
Working knowledge in the field of SNMP monitoring based on SNMP get, SNMP walk, MIB.
Configuration and troubleshooting of many link types i.e. SONET Controllers for sub E1/T1, E3/T3 and POS controllers for STM1 links.
Environment:
Cisco 7200/3845/3600/2800 routers, Cisco 6509/ 3750/3550/3500/2950 switches, Cisco ASA 5500, windows server 2003/2008, Net Flow, TACACS, EIGRP, RIP, OSPF, BGP, VPN, MPLS, CSM, Ether Channels, HSRP, SONET and POS controllers,
Eclature Technologies, Hyderabad, India Feb 2010 – July 2012 Network Engineer
Responsibilities:
Configuring Static, IGRP, EIGRP, and OSPF Routing Protocols on Cisco 1600, 2600, 2800, 3600, 7300 series Routers.
Configuring access layer switches such as Cisco 4510, 4948, 4507 switches for VLAN, Fast Ether Channel configuration.
In depth understanding of IPV4, implementation of Subnetting, VLSM, ARP, reverse proxy ARP & Ping Concepts.
Perform hardware and software diagnostics, fault isolation and coordinate repairs and/or replacement of faulty equipment.
Worked on network topologies and configurations, TCP/IP, UDP, Frame Relay, Token ring, ATM, bridges, routers, hubs and Switches.
Design network and create physical and logical network layout diagrams.
Write and maintain technical documents describing implemented technologies and architecture.
Provided consultation services to clients for installing and configuring Cisco routers and switches.
Implementation of TCP/IP and related Services-DHCP/ DNS/ WINS Configured VLAN’s, Private VLAN’s.
Configure various LAN switches such as CISCO CAT 2900, 3550, 4500, 6509 switches.
Resolve customer WAN/LAN/wireless/load balancing networking issues.
Configured NAT (Network address translation) configurations and its analysis on troubleshooting issues related access lists (ACL).
Experience in troubleshooting SAN related issues and firmware up gradations of SANs in VMware and different environments.
Monitoring network traffic using tools like Solarwinds, Wireshark, etc.
Design OSPF areas for reliable Access Distribution and for Core IP Routing.
Extensively used TCP/IP tool like TELNET for remote login to the routers and SSH for secure login.
Has expertise in LAN/WAN technologies (fast Ethernet, Layer2 & 3 switched/routed LAN, and Frame Relay).
Environment:
Cisco 2600 / 2800 / 3600 Cisco 2950 / 2960 series switches, Cisco Routers 7000, 5300, 4000, 2500, 3000, 2600, NAT, PAT, DHCP, DNS, OSPF, EIGRP, ACL, TCP/IP, LAN, WAN.
Global Logistics, Hyderabad, India June2008 – Feb 2010
Network Engineer
Responsibilities:
Configured and installed Cisco routers 2500, 2600, 3601 and 4000 series. 2950 Switches & Link sys wireless access points.
Handled the up gradation and replacement of network components like NIC cards, display cards, RAM, keyboard, mouse and other peripherals/ devices.
Troubleshoot TCP/IP problems; troubleshoot connectivity issues in multi-protocol Ethernet, Environment
Handled installation of operating systems (NT/2000, MS Office, and XP), troubleshooting of operating systems and configuring the servers.
LAN/WAN hardware including, Ethernet Hubs, Cisco Switches, switch panel's installation, configuration and troubleshooting, Frame-Relay configured support.
Maintained redundancy on Cisco 2600, 2800 and 3600 routers with HSRP.
Real time monitoring and network management using Cisco Works LMS.
Documented the design, implementation and troubleshooting procedures.
Configured and troubleshoot VLAN, VTP, STP and Trunks.
Remotely testing links up to 1.5 Mbps using tools like REACTS.
Configured routing protocols like RIP, EIGRP, OSPF and BGP on Cisco devices.
Good knowledge on troubleshooting the routing protocols.
Physical cabling, IP addressing, Wide Area Network configurations (Frame-relay).
Recovered lost passwords and created standard access-lists and extended access list to new users.
Monitoring network performance to improve the backup strategy using Netrep, Solar winds.
Environment:
Cisco 2500 / 2600 / 3601 / 4000 routers, Cisco 2950 switches, link sys access points
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