Network Engineer Cisco
Resume:
Tej Reddy
**********@*****.***
Summary:
Cisco Certified Network Engineer with 8+ years of experience in the industry, which includes expertise in the areas of Routing, Switching and Firewall.
Expert level knowledge of troubleshooting, implementing, optimizing and testing of static and dynamic routing protocols such as EIGRP, OSPF, BGP ability to interpret and resolve complex route table problems.
Implementation traffic filters on Cisco routes using Standard, extended Access list.
Strong hands on experience in installing, troubleshooting, configuring of Cisco 7200, 3800, 3600, 3400, 2800, 2600, 2500 and 1800 series Routers, Cisco Catalyst 6500, 4500, 3750, 2950 and 3500XL series switches.
Expert Level Knowledge about TCP/IP and OSI models. In-depth knowledge and hands-on experience in Tier II ISP Routing Policies, Network Architecture, IP Subnetting, VLSM, TCP/IP, NAT, FT1 / T1 / FT3 / T3 SONET POS OCX / GigE circuits, Firewalls.
In-depth expertise in the analysis, implementation, troubleshooting & documentation of LAN/WAN ciscoarchitecture and good experience on IP services.
Skilled in monitoring, analyzing, troubleshooting, and managing a variety of LAN/WAN platforms in a Network Operations Center, Command Center, Data Center, and Control Room environment, consistently finding resolutions to complex technical issues.
Cisco ASA 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.
Extensive Knowledge on the implementation of Cisco ASA 5500 series and checkpoint R 75 firewalls.
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.
Hands on experience working with Cisco Nexus 7K, 5K & 2K Switches.
Worked & installed NCS 6K on NXOS, IOS, and IOS-XR BXB to N7K-NXOS (MPLS) system test.
Extensive experience with a wide variety of hardware vendors Cisco Systems, Extreme Networks and Aruba
Good knowledge of CISCO NEXUS data center infrastructure with 5000 and 7000 series switches includes (5548, 7010) including CISCO NEXUS Fabric Extender (223, 2248).
Experience with Cisco IOS Command line interface
Experience working with Cisco Nexus 7K, 5K & 2K Switches.
Strong hands on experience in installing, troubleshooting, configuring of Cisco 7200, 3800, 3600, 3400, 2800, 2600, 2500 and 1800 series Routers, Cisco Catalyst 6500, 4500, 3750, 2950 and 3500XL series switches.
In-depth knowledge and hands-on experience on IP Addressing, Sub netting, VLSM and ARP, reverse & proxy ARP, Ping Concepts.
DMVPN uses a hub and spoke configuration to build site-to-site VPNs with a full mesh topology. I often use DMVPN as a backup solution for MPLS.
Strong knowledge of implementing and troubleshooting complex layer 2 technologies such as VLAN Trunks, VTP Ether channel, STP, RSTP and MST.
Experience with Layer 2 and Layer 3 protocols like LDP, RSVP/ TE, QOS, COS L2 VPWS and VPLS, FRR.
Experience in configuring HSRP and redistribution between routing protocols troubleshooting them.
Experience with Internet/Intranet Networking Protocols and Services
Implementation of HSRP, VRRP and GLBP for Default Gateway Redundancy.
Access control server configuration for RADIUS & TACAS+.
Technical Skills:
LAN Protocols : VLAN, VTP, Inter-VLAN routing, STP, Workgroup, Domain,
HSRP, Static, Ether Channel, Trunks, DHCP
Network Configuration : Advanced switch/router configuration (Cisco IOS access list, Route
Redistribution/propagation).
Routing Protocols : IGRP, EIGRP, OSPF, BGPv4, MPBGP, HSRP, IPv6,
WLAN, 802.11/e, WEP, POP3 LADP, VRRP, GLBR, LACP
WAN Protocols : HDLC, PPP, MLPPP, ISDN, ATM, Channel & Leased Lines
Circuit switched WAN : T1/E1 – T3/E3/OCX (Channelized, Fractional & full).
Packet Switched WAN : ATM, FRAME RELAY, MPLS VPNs
Security Technologies : Cisco FWSM/PIX/ASDM, Nokia Checkpoint NG, Juniper SRX, Palo
Alto, IPS/IDS, DMVPN, HREAP and Flex Connect
Cisco Routers : 2600, 2900, 3600, 3800, 3900, 7200, 7600 and ASR 9K Routers
Redundancy / management : HSRP, VRRP, GLBP, RPR, NSF/NSR, Wireshark, Solarwinds, SNMP
Sniffers : Ethereal (Wireshark).
Network Management Tools : MRTG, HP Open view, Cisco WAN manager, Cisco works 2000.
Physical interfaces : Fast Ethernet, Gigabit Ethernet, Serial, HSSI, Sonet (POS)
Layer 2 technology : VLAN, HSRP, VRRP, GLBP, STP, RSTP, PVST+, MST, PVLAN,
Optimizing STP (Port Fast, Uplink Fast, Backbone Fast, Root Guard, BPDU Guard),
Layer 3 Switching : CEF, MLS, Ether channel (PAGP & LACP, Load Balancing)
Switches : Catalyst 6500, MSFC, MSFC2, 7600, 3700, 3500, N5K, 7K, 9K,
Brocade
Operating Systems : Microsoft Windows XP/Vista/7/8/10, UNIX, Linux (Red hat, Fedora,
Ubuntu, Backtrack), Windows Servers 2003/2008 MS-Office. VMware ESX 5.1, VMware VSphere client.
Professional Experience:
Apple, Newark, CA Jul 2015 to Till Date
Network Engineer
Key Responsibilities:
Responsible for configuration, maintenance, and troubleshooting of dynamic routing protocols: BGP, OSPF & EIGRP (route redistribution, distribute lists, route-maps, offset-lists, prefix lists, route summarization, route-feedback, BGP attributes) on Cisco Routers 7613, 7201, and 3945E.
Working knowledge of frame relay, MPLS services, OSPF, BGP and EIGRP routing protocols, NATing, NAC product sub-netting, also including DNS, LDAP, DHCP, http, HTML, HTTPS, TCP/IP, UDP, SNMP, OSPF, RIP, IPSEC, PPTP, VLAN, STP (Spanning tree Protocol), RTSP & Multicasting protocols
Experience with design and implementation of Virtual Switching System (VSS) for both User segment and server segment using 6509-V-E catalyst switches
Experience with design and implementation of Data center migration with completed end to end site solution.
Worked on datacenter for fabric protocols including Cisco ACI /APIC
As part of Data Center fabric remediation/refresh project, deployed Cisco Nexus switches and implemented features like FEX Links, VPC, VDC, and Fabric Path.
Deployed Cisco’s Flex Connect
Managed the configuration inventories and timely revisions for ACI policies.
worked on firewall technologies includes Fortinet firewalls. Administration, troubleshooting and engineering background is required. Knowledge of other firewall technologies
Conducted POC trials of Network Security technologies including web application firewalls (Fortigate, Juniper Netscreen, SRX, and Palo Alto) then implemented the solutions.
Routing Development between Riverbed Steelhead WAN Optimization Controllers and Cisco and Juniper router platforms
Leveraged EAP and Cisco ISE host OS detection capabilities to design a unique employee BYOD solution
Worked on Cisco WAP and Cisco Prime for wireless access within the campus.
Monitoring network access rules usage on Tufin Secure Track.
Configured Tufin and network devices for monitoring network rules.
Routing development between Riverbed Interceptor and Cisco and Juniper router platforms.
Implemented Zone Based Firewalling and Security Rules on the Palo Alto Firewall.
Developed custom Sitescope and Cacti monitoring utilities.
Manage, operate, and analyze data from corporate security systems of Sourcefire
Designing, Implementing and Troubleshooting Cisco 3750, 3550, 3560, 2924, 6509-V-E, 6513, 6504, 6503, 6506, 6500 series switches, GSR, ASR routers with Cisco IOS and IOS-XR and NX, Cisco CSR, ASR1k, ASR 9k, ISR4k, ISRG2.
Worked on multiple and parallel releases of Brocade's for converged SAN+IP Network
Installed, configured NCS 6K and managed Cisco routers such as 7200 series, 3800 series, 3700 series, 2800 series and Cisco Catalyst switch series 6500, 4500, 3500, and 2900.
Providing assistance in installation and maintenance of various Aruba products and extending support to Enterprise customers and partners worldwide.
Assisting customers to deploy better indoor/outdoor (including VOIP/RTLS, Bridge and Mesh) solutions by leveraging Aruba’s best practices in order to minimize operational hurdles
Upgraded the data center network environment with Cisco ASA 5520. Configured ACL’s on Cisco Switches as well as configured routers as terminal servers.
Worked on Layer 2 protocols such as STP, VTP, STP, RSTP, PVSTP+, MST and other VLAN troubleshooting issues and configuring switches from scratch and deployment
worked on Cisco TDM Gateway modules are deployed on Cisco 2900, 3900 and 4000, VG224, VG228, SPA3102 Series Integrated Services Routers (ISRs).
Wrote a PERL script to convert their database data into an importable format
Created shell and PERL scripts to handle file verification and/or file copying
Configuration and administration of Cisco Intelligent Contact Management which includes (Cisco ICM Router, Logger, AW Distributor, PG's and CTIOS)
Involved in designing and implementing QoS and policy map to 2800 series routers for all the branches
Experience Branch Relocation: Connect workstation, servers, etc. Rack and stack Pre-configured new hardware and connect the circuits. Work with Carrier to test and turn-up circuits.
Performed IP address planning, designing, installation, configuration, testing, maintenance, and troubleshooting in complete LAN, WAN development.
Communicate with Spirent product teams regarding bugs and proactively conduct follow-ups to ensure fixes are received and tested by customers.
Customer system installation and training on Spirent test equipment
Strong hands on experience on PIX Firewalls, ASA (5540/5550) Firewalls.
Implemented Security Policies using ACL, Firewall, IPSEC, SSL, VPN, IPS/IDS, AAA (TACACS+ & RADIUS)
Solarwinds updating, maintenance, standards & reporting
Combining GRE and IPSec with a Front Side VRF
Involved in operations and administration of WAN consisting Ethernet Handoffs, T1, DS3, and Optic Fiber Handoffs.
Installed wireless access points (WAP) at various locations in the company.
Responsible for investigating Data Loss Prevention using Symantec DLP.
Actively involved in switching technology Administration including creating and managing VLANS, Port security – 802.11x, Trunking 802.1Q, RPVST+, Inter-VLAN routing, and LAN security on Cisco Catalyst Switches 4507R+E, 6509-E and Cisco Nexus Switches 2232, 5596, 7009.
Worked on configuration and commissioning of the MPLS circuits for various branch offices.
Upgrades, installs, configuration and administration security and monitoring tools on Linux.
Managed MySQL, Apache, Send mail, and XSTOP applications
Providing Daily network support for national wide area network consisting of MPLS, VPN and point-to-point site.
Performed Network Security Assessment and implemented security improvements such as network filtering, SSH, AAA, SNMP access lists, VTY access lists, EIGRP MD5 authentication, and HSRP authentication.
Network capacity planning, modeling, and traffic optimization and experience in using tools
(Opnet, Netflow, etc.).
Configured of ACL’s in Cisco 5520 ASA firewall for internet Access requests for servers, Protocol Handling, Object Grouping and NAT
Responsible for Data Center Migrations and its operations.
Implemented antivirus and web filtering on Juniper SRX 240 at the web server as well as configuration of F5 Big-IP LTM-6400 load balancers and experience working with F5 technologies (LTM, GTM, APM, V9, V10, V11)
Experience working in an Agile Scrum environment and with HPSM Change Control System.
Participated in communities and forums for continued business inputs & responses and sharing best practice
Environment: Cisco2948/3560/4500/3560/3750/3550/3500/2960/6500switchesandCisco3640/12000/7200/
3845/3600/2800routers, Aruba, NCS6000, CiscoNexus7K/5K, CiscoASA5510, Checkpoint, Cacti, Solarwinds,
Wireshark, F5 BIGIP LTM., OSPF, EIGRP, RIP, BGP, VLAN, VPN
DTE Energy, Detroit, MI Jul 2014 to Jun 2015 Network Engineer
Key Responsibilities:
Configured RIP, PPP, BGP and OSPF routing, and Involving in the configuration & troubleshooting of routing protocols: MP-BGP, OSPF, LDP, EIGRP, RIP, BGP v4. Configured IP access filter policies, and Creating and provisioning Juniper SRX firewall policies.
Configuration of cisco voice portal (CVP)
Regular upgrade and maintenance of Infrastructure, Installing, configuring, and maintaining Cisco Switches (2900, 3500, 7600, 3700 series, 6500 series) Cisco Routers (4800, 3800, 3600, 2800, 2600, 2900, 1800, 1700, 800) Cisco Router and Switches, Juniper Routers
Identify, design and implement flexible, responsive, and secure technology services
Installed, configured, and managed the firm's Citrix Access Gateway appliances and NetScaler’s 8.0
Created documentation for server builds and Citrix applications installations
Experience with Firewall Administration, Rule Analysis, Rule Modification
Implemented Positive Enforcement Model with the help of Palo Alto Networks.
Documented new VPN enrolments in a database and create standard procedures for further improvement.
Analyzed and tested network protocols (Ethernet, TCP/IP) using Wireshark.
Innovated with support of Palo Alto for remote and mobile users and for analyzing files for malware in a separate (cloud-based) process that does not impact stream processing.
Created standard access lists to allow SNMP, NTP and logging servers.
Configure VRRP & GLBP and VLAN Trunking 802.1Q & ISL, STP, Port Security on Catalyst 6500 switches.
Negotiate VPN tunnels using IPSec encryption standards and also configured and implemented site-to-site VPN, Remote VPN.
Use Netflow Monitoring to detect the devices that use most of bandwidth
Security policy review and configuration in Palo Alto and Juniper SRX Firewall in US offices and Datacenter.
Modified internal infrastructure by adding switches to support server farms and added servers to existing DMZ
Responsible for Checkpoint and Cisco ASA firewall administration across global networks.
Generating RCA (Root Cause Analysis) for critical issues of layer1/layer2/layer3 problems.
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.
Provided proactive threat defence with ASA that stops attacks before they spread through the network.
Environment: Cisco 3750/3550/3500/2960 switches and Cisco 3640/12000 /7200/3845/3600/2800 routers, Cisco ASA5510, Checkpoint, VMWare, Solarwinds, Nagios, Wireshark, Load Balancer, Citrix XenApp5.0, Citrix NetScaler 8.0 Cisco Nexus7K/5K, 2248/3560/5020/6509, VPN
Harrison Medical Center, Bremerton, WA Feb 2013 to Jun 2014
Network Engineer
Key Responsibilities:
Configured LAN networks with Access layer switches such as Cisco 4510, 4948, 4507 switches.
Performed network monitoring and packet tracing using tools like Wireshark, OPNET.
Setting up VLANS and configuring ISL trunk on Fast-Ethernet channel between Switches.
Deployed a large-scale HSRP solution to improve the uptime of collocation customers, in the event a core router became unreachable.
Worked with F5 load balancer and Cisco ACE 4710 Load balancers
Configuring and implementing F5 BIG-IP, LTM, GTM load balancers to maintain local and global traffic.
Configuring Virtual Chassis for Juniper switches EX-4200, Firewalls SRX-210
Implementing, Monitoring, Troubleshooting and Convergence in Frame-Mode MPLS inside the core.
Configuring VLAN, Spanning tree, VSTP, SNMP on EX series switches
Understand the JUNOS platform and worked with IOS upgrade of Juniper devices
Configured OSPF, BGP on Juniper Routers and SRX Firewalls.
Configured routing policy for BGP. Switching related tasks included implementing VLANs and configuring ISL trunk and 802.1Q on Fast-Ethernet channel between switches
Configuring RIP, OSPF and Static routing on Juniper M and MX series Routers
Troubleshooting on network problems with Wire shark, identify problem and fix.
Experience with configuring Nexus 2000 Fabric Extender (FEX) which acts as a remote line card Redistribution of routing protocols and Frame-Relay configurations.
Designed and Implemented Cisco UCS pods in Nexus 7000 and Cisco 6500 Platform
Configured UCS Fabric Interconnects 6248 / 6120
Involved in Implementation and Configuration (Profiles, IRules) of F5 Big-IP C-4400 load balancers
Configuring and troubleshooting type of routing to route traffic flow per customer requirement as primary, backup/load balanced and load splitting.
Performed the maintenance of Active Directory and replication scheme, DNS/DHCP services and time services; wrote step-by-step procedures for implementing upgrades.
Used C++for security code reviews
Dealt with creating VIP (virtual servers), pools, nodes and applying rules for the virtual servers like cookie persistency, redirection of the URL
Configured VLANs on a switch for inter-VLAN communication. Configured VLAN Trucking Protocol (VTP) on Core Switches. Configured various LAN switches such as CISCO CAT 2900, 3550, 4500, 6509 switches for STP, VTP Domain, VLAN, Trucking, Fast Ether Channel configuration.
Engineering, re-designing, upgrading and tier 3 administration of Citrix NetScaler
Implemented Cisco IOS Firewall IDS using 2600 series router.
Environment: Cisco routers (1600, 3600, 7300) and Cisco switches (6509, 3550, 4500, 2900), Nexus (7K, 5K & 2K), Routing protocols (EIGRP, OSPF, BGP), Switching Protocols (VTP, STP, GLBP, HSRP), F5 load balancer, Citrix NetScaler, Cisco PIX (525, 515E), ASA (5540, 5510) firewall, Palo Alto firewall.
DATS India Limited, Hyderabad, India Aug 2010 – Jan 2013
Network Support Engineer
Responsibilities:
Experience in Cisco 7200, 7600 routers, Cisco 2800 3700 series switches: Physical cabling, IP addressing, Wide Area Network configurations (Frame-relay and ATM).
Performed troubleshooting, while maintaining trouble ticket tracking, following internal/external escalation procedures and customer notifications. Configured Cisco Routers for OSPF, RIP, IGRP RIPv2, EIGRP, Static and default route.
Configured the Cisco router as IP Firewall and for NATting.
Supporting Development team for the access to corporate network and outside world. Providing access to specific IP, Port filter and port access.
Switching (Ethernet) related tasks included implementing VLANS and configuring ISL trunk on Fast-Ethernet channel between switches.
Configuring routers and send it to Technical Consultants for new site activations and gives online support at the time of activation.
Installed and configured PIX 520, 525, 535 series firewalls, configured standard and extended access-lists and policy- based filters
Work with Help Desk for circuit troubleshooting to give Support to the Tech persons at the site.
Configured ASA 5510 appliance and VPN.
Responsible for implementing QoS prioritizing voice traffic over a data.
Implemented SNMP on Cisco routes to allow for network management. Completed the installation and configuration of T1, T3 & OC3 circuits.
Troubleshoot TCP/IP problems, troubleshoot connectivity issues.
Intelex Systems, Hyderabad, India May 2009 – Jul 2010
Network Engineer
Responsibilities:
Configured the Cisco router as IP Firewall and for NATing.
Maintenance of ERP and troubleshooting of ERP.
Managed and installed Firewall (Sonic wall).
Installed & configured PIX 520, 525, 535 series firewalls, configured standard & extended access-lists & policy- based filters.
Configured ASA 5510 appliance and VPN.
Responsible for implementing Qos prioritizing voice traffic over a data.
Managed and maintained Antivirus Server (MacAfee, Quick heal, scan).
Installed and configured network printer installation (HP) 3500 series.
Configuring, supporting, and maintaining routers, switches, network appliances, firewalls, concentrators, and other communication devices.
Providing support for advanced level and on-call support for large variety of networks, systems, and infrastructures.
Troubleshooting network systems and performance, and remediating issues professionally and concisely.
Education:
Bachelor of Technology in Computer Science and Engineering
Certifications:
CCNA: Cisco Certified Network Associate
CCNP: Cisco Certified Network Professional
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