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Network Engineer Cisco

Location:
Secunderabad, Telangana, India
Posted:
July 26, 2017

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Resume:

Niranjan

Phone: 732-***-****

Email: ******@*************.***

SUMMARY:

Around 8 years of expertise in Designing, Implementing and troubleshooting various Network Technologies.

Hands-on experience, specializing in Cisco Environment in Data Center, systems, network and user administration, LAN / WAN.

Experience in installation, configuration, design and ongoing maintenance of Cisco router and switches.

Worked on Cisco Catalyst Switches 6500/4500/3500 series,

Knowledge of managing, maintaining, administering, troubleshooting high end network devices such as cisco routers switches.

Experience of routing protocols like EIGRP, OSPF, RIP, BGP and IP addressing,

Experienced in Troubleshooting for connectivity and hardware problems on Cisco Networks.

Experience in L2/L3 protocols like VLAN, STP, ISL, MPLS and Trunking protocols.

Expertise in implementation and troubleshooting of protocols such HSRP, VRRP, GLBP, ACL.

Experience with upgrading SUP1 to SUP2 on Cisco Nexus 9000,7000 Series. Experience working with Nexus 7010, 5020, 2148, 2248 devices.

Experience on Endpoint security with McAfee Endpoint.

Expertise in configuring and troubleshooting of Palo Alto, FortiGate, Juniper Netscreen& SRX Firewalls and their implementation.

Worked with several network engineers for the understanding of Juniper SRX firewalls along with the changeover to Palo Alto (5060s) needs.

Strong hands on and exposure to Checkpoint & Palo Alto on a regular basis.

Experience on PCI and ISO compliant security implementations on the firewalls and perimeter devices.

Experience in Cisco IOS Upgrade, Netscreen firewalls and Bluecoat proxy server’s firmware upgrade

Extensive Experience in System Testing of Wireless LAN Products. Good understanding of IEEE 802.11a/b/g/n Technologies. Understanding and debugging the problems.

Involved in migration of WLAN/Wi-Fi segment on the LAN Core. Also involved in configuring wireless VLANS.

(WI-FI & WIMAX) Cisco Aironet 1410 Series Wireless Bridge, Cisco Aironet 1310 Access Point Bridge, Cisco Wireless Controllers 5508, Cisco Meraki Appliance MX (400, 80, 60) and Meraki wireless Access points (MR66, MR18), Aruba Access points IAP-92, IAP-93

Upgraded the software images of all Cisco network devices to include routers, switches and ASA firewalls

Configured, installed, & managed DHCP, DNS, & WINS servers

Experience with Load Balancers for administrating and monitoring global & local traffic.

Strong experience in Configuring F5 LTM 8950, 6900, VIPRION 2400 models.

Troubleshooting the issues that were raised while upgrading the F5 LTM's from 10.2.3 to 11.3.

Basic and advance F5 load balancer configurations, including migrating configurations from Cisco ACE to F5 and general troubleshooting of F5 load balancers

Experience in working with Cisco Load Balancers

Installation & configuration of Microsoft Proxy Server 2.0 & Blue Coat Proxy

Experience with Racking, Stacking, configuring, Nexus 2K,5K and 7K

Installed wireless access points (WAP) at various locations in the company

Hands on experience and good working knowledge with Checkpoint Firewall policy provisioning.

Experience with managing the completed end to end site solutions.

Experience in working with Cisco Load Balancers

Configuration experience on Nexus 2000 Fabric Extender (FEX), which acts as a remote line card (module) for the Nexus 5000

Designed, Implemented and Troubleshot Cisco 3750, 3550, 3560, 2924, 6509-V-E, 6513, 6504, 6503, 6506, 6500 series switches.

Hands-on experience on Checkpoint Firewall R77, Palo Alto and Cisco ASA 5520 firewalls.

Supporting Cisco Higher End Devices and Technologies include Cisco ACE Load Balancers.

Configuration of New & Existing Network devices, includes Cisco Routers, Switches, ASA and ACE’s

Extensive experience in configuring Layer3 routing and layer2/3 switching of Juniper & Cisco based J2320, MX, EX, 2950, 2960, 3600, 3750, 4500, 6500, 1700, 1800, 2600 and 3700 series routers & Switches.

Performed Domain Admin tasks including maintaining DNS and DHCP.

knowledge of Juniper platforms: SRX, MX, EX, N2x, QFX

CERTIFICATIONS :

Cisco Certified Network Professional (CCNP) – Routing and Switching

Cisco Certified Network Associate (CCNA) – Routing and Switching

EDUCATION:

Bachelor of Technology from JNT University India

PROFESSIONAL WORK EXPERIENCE:

Lowes, Nov 2015 - Present

Raleigh, NC

Network Engineer

Responsibilities:

Experience working with market data networks and dealing with clients and deploying network designs

Experience working with High performance data centre switch like nexus 9000, 7000 series

Experience with converting WAN routing from EIGRP/OSPF to BGP (OSPF is used for local routing only) which also involved converting from Point to point circuits to MPLS circuits.

Experience working with migration from 6500 series devices to 4500 Series switches in Campus deployments at Core, Distribution and Access Layers.

Switching tasks include VTP, ISL/ 802.1Q, VLAN, Inter-VLAN routing, Ether Channel, STP and RSTP, PVST+.

Setup and maintained Checkpoint security policies including NAT, VPN and Secure Remote access.

Hands on experience with WAN technologies - ISDN, Frame Relay, SONET, HDLC.

Worked on commissioning and decommissioning of the MPLS circuits for various field offices & POPs.

Adept in Configuring the Virtual Local Area Networks (VLANS) using Cisco routers and multi-layer.

Worked with NIST / PCI environment.

Worked with Windows server 2008/2012.

Monitor, analyse, troubleshoot Aruba APs, wireless controllers and s3500 switches using the Airwave management system

Involved in migration of WLAN/Wi-Fi segment on the LAN Core. Also, involved in configuring wireless VLANS.

Network planning and implementation of WAN technologies including E3, E1, T1, T3, ISDN, HDLC, PPP, Frame Relay, ATM and MPLS, VPN

Developed and implemented an application security technology solution including Cisco ACE XML gateways (SOA application firewall).

Experience with Change Management procedures

Configured PVSTP+ for loop prevention and VTP for Inter-VLAN Routing.

Configuring VLAN, Spanning tree (STP), VSTP, SNMP on EX series switches

Responsible for managing activities, Upgrading IOS – Upgrading hardware and installing new devices, tuning (Configuration), make standardization for the topology

Implement and configuring HSRP on different location of office on the switched network and managing the entire multilayer switched network

Experience working with Cisco Nexus 2148 Fabric Extender and Nexus 5000 series to provide a Flexible Access Solution for a datacentre access architecture

Experience configuring VPC, VDC on Nexus

Experience in Configuring with OSPF, BGP on Cisco devices.

Key contributions include troubleshooting of complex LAN/WAN infrastructure that include routing protocols EIGRP, OSPF & BGP

Provide front end on-call network support 24x7x365 for all network infrastructures in the co-operation

Environment: Cisco routers (3800, 2800) and Cisco switches (6500, 3700, 4900, 2900), Nexus (7K, 5K & 2K) Routing Protocols (EIGRP, OSPF, BGP), Switching protocols (VTP, STP, GLBP, HSRP)

Cardinal Health Dec 2014 – Oct 2015

Columbus, OH

Network Engineer

Responsibilities

Configured OSPF redistribution and authentication on LAN devices.

Configured OSPF over frame relay networks for NBMA and point to multipoint strategies.

Implementing traffic engineering on top of an existing Multiprotocol Label Switching (MPLS) network using Frame Relay and Open Shortest Path First (OSPF).

Worked on HSRP for load balancing.

Involved in design and implementation of Data Centre Migration, worked on implementation strategies for the expansion of the MPLS VPN networks

Installed, configured, and use of Cisco Meraki Appliance MX (600,400, 80, 60) and Meraki wireless Access points (MR66,MR18).

Experience converting Cat OS to Cisco IOS on the Cisco 6500 switches

Cisco IOS experience on 3600/7200 class hardware in complex WAN environment and experience on Cisco OS and IOS on CAT6500 in a complex data centre environment

Hands on experience installing Sup720 for Cisco 6509-E series and its Gigabit Ethernet port deployment in the core network

Assis in managing SQL Databases and Web Servers. Deploy Server 2012 and setup/maintained Hyper-V environments.

Installation of MS SQL server management studio(SSMS), restoring databases, creating backup plan, taking backup and installation of local area network using switch to access databases on MS SQL server.

Administration of Cisco 4200 series IPS sensors.

Monitoring traffic logs from IPS devices and analysing traffic by using Wireshark.

Configuring IP, RIP, EIGRP, OSPF and BGP in routers.

Experience in deploying EIGRP/BGP redistribution and the changing the metrics for the primary and backup

paths for the packet prioritization and EIGRP tuning

Experience on a mesh 6500 and 5500 series routers and switches to support the core trading system. Involved

Upgrades and backups of Cisco router configuration files to a TFTP server

Implementing and maintaining backup schedules as per the company policy

Experience working with High performance data centre switch like nexus 7000 series

Manage Cisco Routers and troubleshoot layer1, layer2 and layer3 technologies for customer escalations

Used various scanning and sniffing tools like Wire-shark

Created engineering configuration, Security Standards, documenting processes and Network documentation using Microsoft Visio

Implemented the concept of Route Redistribution between different routing protocols

Switching related tasks included implementing VLANS, VTP, STP and configuring on Fast Ethernet

Monitored all Cisco equipment’s using Cisco Works

Environment: 6500/3750/3550/3500/2950 switches, Cisco 7200/3845/3600/2800 routers, TACACS, EIGRP, RIP, OSPF, BGP, VPN, MPLS, Ether Channels.

AMEX, Jan 2014 – Nov 2014

Phoenix, AZ

Network Engineer

Responsibilities:

Installation and Configuration of Cisco Catalyst switches 6500, 3750 & 3550 series and configured routing protocol OSPF, EIGRP, BGP with Access Control lists implemented as per Network Design Involved in the redistribution into OSPF on the core

Experience on HSRP for load balancing.

Involved in the removal of EIGRP from all devices and making OSPF the primary routing protocol.

Involved in the modification and removal (wherever necessary) of BGP from the MPLS routers.

Tuned BGP internal and external peers with manipulation of attributes such as metric, origin and local Preference.

Responsible for maintaining and ensuring the proper functioning of all network devices (i.e. Juniper routers/switches, Cisco Routers/Switches, Juniper Netscreen firewalls, Cisco ASA firewalls, and load balancers (LTM)).

Configured and provided support for juniper Netscreen firewalls.

Configured and provided support for cisco ASA firewall and FWSM modules.

Responsible for turning up BGP peering and customer sessions, as well as debugging BGP routing problems.

Designing and Implementation of (LAN) VLANs, VTP, Spanning Tree (STP), Trunking (dot1q and ISL) and Ether channel.

Key contributions include troubleshooting of complex LAN/WAN infrastructure that include routing protocols EIGRP, OSPF & BGP

Configuring, Installing and troubleshooting on Check Point Devices.

Good knowledge on Intrusion Detection and Intrusion Prevention System.

Experience with Synchronous Optical Networking (SONET) over optical fibre.

Involved in Configuring and implementing of Composite Network models consists of Cisco7600, 7200, 3800 series and ASR 9k, GSR 12K routers and Cisco 2950, 3500, 5000, 6500 Series switches.

Configured networks using routing protocols such as RIP, OSPF, BGP and manipulated routing updates using route-map, distribute list and administrative distance for on-demand Infrastructure.

Implemented Hot Standby Router Protocol (HSRP) by tuning parameters like pre-emption.

Responsible for day to day management of Cisco Devices, Traffic management and monitoring.

Managing health check of Network devices this is involves upgrading IOS on every quarter after checking the vulnerability of IOS and reviewing the configuration

Experience in HSRP standby troubleshooting & Experience in configuring & upgrading of Cisco IOS

Configured policy based routing for BGP for complex network systems.

Environment: CISCO routers and switches, Access Control Server, VLAN, Trunk Protocols

Halona Technologies, Hyderabad India Nov 2010 – Dec 2013

Network Engineer

Responsibilities:

Configured Cisco Routers for OSPF, IGRP, RIPv2, EIGRP, Static and default route.

Worked on HSRP for hop redundancy and load balancing.

Configured RSTP and used VTP with 802.1q trunk encapsulation.

Provided port binding, port security and router redundancy through HSRP.

Designed ACLs, VLANs, troubleshooting IP addressing issues and taking back up of the configurations on switches and routers.

Provided testing for network connectivity before and after install/upgrade

Switching related tasks included implementing VLANS and configuring ISL trunk on Fast-Ethernet and Gigabit Ethernet channel between switches.

Experience in Cisco switches and routers: Physical cabling, IP addressing, Wide Area Network configurations.

Configured & maintained IPSec VPN in Cisco ASA, Palo Alto firewalls.

Monitoring alerts & events in Cisco IPS.

Monitoring network devices using HP Network Node Manager.

Implemented TACACS+ for administering user accounts.

Responsible for Internal and external accounts and, managing LAN/WAN

Settings of the networking devices (Cisco Router, switches) co-coordinating with the system/Network administrator during any major changes and implementation

Routing protocols OSPF, RIP & BGP

Environment: Cisco 3845/3600/2800 routers, TACACS, EIGRP, RIP

Infotech Enterprises, Hyderabad India Oct 2008 – Oct 2010

Network Engineer

Responsibilities:

Worked on Cisco routers 3600, 2800 and Cisco switches 4900, 2900

Key contributions include troubleshooting of complex LAN/WAN infrastructure that include

Creating Private VLANs & preventing VLAN hopping attacks & mitigating spoofing with snooping & IP source guard

Configured network access servers and routers for AAA Security (TACACS+)

Other responsibilities included documentation and change control

Worked on configuration and installation of new desktops for users using GHOST, EZ copy and Disc-to-Disk copy.

Identifying technical problems and debugged hardware and software related to LANs/ WANs.

Switching related tasks included implementing VLANS, VTP and configuring ISL trunk on Fast - Ethernet channel between switches.

Develop and implement strategies to support the current and future needs of the company.

Configured Cisco Routers 2600 series using RIP, OSPF, and EIGRP.

Configured Cisco Switches 2900 and firewall (checkpoint)

Responsible for SNMP Monitoring and Performance Tuning software.

Hands on Experience working with security issue like applying ACL’s, configuring NAT and VPN

Configured BGP for CE to PE route advertisement inside the lab environment

Spearheaded meetings & discussions with team members regarding network optimization and regarding BGP issues

Environment: Cisco 3600/2800 routers, TACACS, EIGRP, RIP, VLAN, STP, RSTP, VRRP, and Ether Channel, OSPF.



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