Network Engineer Cisco

Sathish

Phone No:732-***-**** Email: *********@*********.***

PROFESSIONAL SUMMARY:

Cisco Certified Network Engineer with 8 years of practical experience in the IT field as a network engineer, with proficient hands-on experience in the areas of Wi-Fi portfolio, Routing, Switching and Troubleshooting Strong knowledge in configuring and troubleshooting routing protocols like RIP, OSPF, VOIP, IS-IS, SNMP, EIGRP and BGP

Experience with Layer 2 and Layer 3 protocols like LDP, RSVP/ TE, QOS, COS L2 VPWS and VPLS, FRR.

Installing and Configuring Cisco switches 2960, 3560, 4500, 6500, 4900, 2900, 3750, Nexus 5000, Nexus 7000, WS-C4948, Juniper EX, QFX and Alcatel 7705 SAR series.

Installation & configuration of Cisco VPN concentrator 3060 for VPN tunnel with Cisco VPN hardware & software client and PIX firewall

Experience in Implemented traffic filters using Standard and Extended access-lists, Distribute-Lists, Route Maps and route manipulation using Offset-list.

Hands-on expertise with routers 2600, 2900, 3600, 3900, 7200, 7600, ASR-901, ASR-903, ASR 5500, ASR-9010 and Juniper ACX, E, M, MX960 series.

Experience in deployment of GRE tunneling, SSL, Site-Site IPSEC VPN and DMVPN.

Working Knowledge on Devices like Juniper SRX240, Alcatel5620 SAM, 9500 MPR and Omni switch 6400.

Implementation, working analysis, troubleshooting and documentation of LAN, WAN & WLAN architecture with excellent work experience on IP series.

Working knowledge with Load Balancers F5 LTM like 3900, 6900 for various application

Working knowledge of Firewall, LDAP, AAA, TACACS/RADIUS, and IPSEC.

Proficient with TCP/IP and relative OSI models.

Security policy configuration including NAT, PAT, VPN, SSL-VPN, Route-maps and Access Control Lists.

Strong practical experience in IP addressing, Sub-netting, VLSM and ARP, proxy ARP, and ping concepts

Expertise in troubleshooting and configuring DNS, DHCP, TFTP, TELNET, SSH, FTP and NFS

Excellent hands-on experience in designing and implementing IP addressing that includes both IPV4 and IPV6

Implementation of Access lists, route maps, and distribute lists.

Strong fundamental knowledge in implementing Layer-2 level technologies including VLAN's, VTP, STP, RSTP and Trunking.

Technical support for improvement, up-gradation & expansion of the network architecture.

Working experience on tools and devices like Source Fire, Fire eye, Aruba, Cisco ASA, Cisco ISE.

Good understanding and working knowledge of Protocols like IEEE 802.1, IEEE 802.3& IEEE 802.11, 802.1x, EAP, PEAP & EAP-TLS.

Televes Digital Signage System (DS Server, HDMI-H264 encoder, STBs).

Hands-on experience of Python scripting, automation using Python, string parsing, libraries, API's, regexp and more.

Expertise on various Operating Systems and software's like Win8, Win7, Win 2008, Win Vista, Ubuntu, Kali Linux, Red Hat Linux, Asterisk and MS Office Suite, Adobe Photoshop,

Working Experience in SONET, DWDM & ATM Networks.

Bluecoat proxy SG/AV/ Director / Reporter and Bluecoat SSL Decryption and Experience in SG210-10-PR Blue Coat SG210-10 in two projects.

Working Experience in VMware ESX 5.x, VMware Workstation, VMware vCenter Server, Microsoft SharePoint, System Center 2012 R2, C++.

VoIP Installation and troubleshooting, configuring Digium Phones and setting up VoIP over VLAN.

Good understanding and working knowledge of ITIL standards

HSRP, VRRP, GLBP, Ether Channel technology (LACP, PAgP) with Implemented redundancy.

Hands on experience on several Ticketing Tools like JIRA, Change Management, Service Catalog, ePCR, SR, Remedy, IP center, etc.,

Hands on experience on Python scripting, Automation using Python, string Parsing, libraries, API’s and more.

Created Deployed different Power Shell, Python/c # scripts in the network.

Experience with Fireeye and Firepower devices.

Working Experience on web content filter and gateways like Blue Coat, Websense.

Working Experience on Network Scanning, Management, Alerting & Logging tools like Solar Winds, Net cool, Science Logic, Log Logic, EM7, Indeni, nCircle, PRTG, Wire shark.

Comprehensive understanding of OSI Model, TCP/IP protocol suite (IP, ARP, ICMP, TCP, UDP, SNMP, FTP, TFTP).

Planning, Designing, Implementation of small, medium organizations including LAN, VLAN, WLAN and WAN on wired and wireless networks

Working experience on different connection medium like Fiber and Copper Connectivity.

Having vast experience in designing and configuring of Switches for VLANS and inter-switch communications

TECHNICAL SKILLS:

Routing

RIPV1, RIPV2, IGRP, EGIRP, OSPF, BGP, Route Filtering, Redistribution, Summarization, and Static Routing

Switching

VLANs, VTP, STP, PVST+, RPVST+, Inter VLAN routing & Multi-Layer Switch, Ether channels, Transparent Bridging, CEF, DECF, Port Security, VSS Cisco 2960, 3560, 4500, 6500, 4900, 2900, 3750,Nexus 5000,Nexus 7000, WS-C4948, Juniper EX, QFX and Alcatel 7705 SAR

Router

Cisco 7600, 7606, 7609, 7613, 7200, 4400, 3900, 3800, 2900, 1900, ASR-901, ASR-903, ASR 5500, ASR-9010, 7206 VX, MWR 2941, Alcatel 7705 SAR, Juniper ACX, E, M, MX960 and SRX 240 series

Switches

Cisco Catalyst 6500, 4500, 3560, 3750, 2960, Nexus 7000, Nexus 6000, Nexus 5000, Juniper EX, QFX and Alcatel 7705 SAR series

Network Security

Cisco ASA5550/ 5540, NetScreen, Juniper SRX, Palo Alto, Checkpoints, AAA, Firemon, FREE RADIUS, CADA, LDAP, IPsec VPN, SSL VPN, IDS, IPS, Source Fire, Fire Eye, Cisco NAC (4.9.3), Cisco ISE, Aruba, RSA, RSA 2 Factor, SIEM, Qradar, Tripwire

Network Management

Wire shark, SNMP, Ethereal, Solar Winds, Net cool, Science Logic, Log Logic, EM7, Indeni, nCircle, PRTG, Blue Coat, Websense, Cisco NAC, ISE, Active Directory

Operating Systems

Windows (98, ME, 2000, XP, Sv2003, Sv2008, Sv2012, Vista, 7, 8), Ubuntu, Linux, Kali Linux, CentOS, FreeBSD, Red Hat

Software’s

VMware ESX 5.x, VMware Workstation, vCenter Server, System Center 2012 R2, MS SharePoint, C & C++.

CERTIFICATIONS:

Cisco Certified Network Associate (CCNA)

Cisco Certified Network Professional (CCNP)

PROFESSIONAL EXPERIENCE:

Diesel, Madison WI Feb 2016 - Present

Sr. Network Engineer

Responsibilities

Supporting Tier 1 team in towards troubleshooting of networking issues, working on level 2 issues and Escalating issues to level 3 when needed

Configuring and troubleshooting Cisco 1800, 1900, 2600, 2800, 2900, 3800, 3900,4000 and ASR 1001,800 series routers; Cisco 2960, 3750, 6500 series catalyst switches and Nexus 2K, 5K, 7K,9k switches.

Managed the LAN Switching environment including creating and maintaining VLANs, STP, Trucking, Port Security, VLAN Security etc.

Implementing & Filtering Traffic using Access control list (ACL).

Configuring and Troubleshooting issues relating to Cisco ACE

Configuring and troubleshooting F5 LTM and GTM load balancers

Configuring and Troubleshooting Cisco stack wise switches

Supporting WAN circuits such as T1, DS3, OC3, Frame relay and MPLS

Extensive troubleshooting on wireless network issues.

Troubleshooting routing issues relating to EIGRP and BGP problems relating to server, server Load balancing, switching loops, SAN issues, firewall on a day to day basis & provide solutions that would fix the problem

Configuration of layer-2 Spanning tree protocol, layer-3 dynamic routing protocol WAN routing like OSPF, EIGRP, BGP and RIP.

Configuring and troubleshooting MPLS over BGP (i.e. Converting from Frame relay to PPP).

Worked on HSRP and GLBP for first hop redundancy and load balancing.

Configuring and troubleshooting cisco ASA 558*-****-****

Building site to site VPN tunnels with business partners, Configuring & troubleshooting phase 1 and phase 2 of site to site vpn, configuring firewall rules access list & nat and Troubleshooting connectivity issues using packet capture,tcp ping on ASA firewalls

Migrating the applications from the legacy f5s to the Viprions.

Configuring Virtual servers (standard and performance layer 4), pools and nodes on Viprions.

Configured priority group pool activation to direct traffic to desired pool members.

Implemented IRules for content switching using switch glob command, header removals and redirects.

Configured HTTP profiles and HTTP to HTTPS redirects on virtual servers.

Generating CSRs and installing certs on the virtual servers.

Front end SSL offloading on the application delivery controllers

Configuring SNAT, SNAT auto map on Big IP appliances.

Configuring cookie persistence for the web traffic on LTM modules.

Traffic capture using TCPDUMP and analytics profiles on f5 for further investigating the issue.

Troubleshooting the application Connectivity issues using cURL commands of f5s.

Implementing and configuring F5 LTM's for VIP's and Virtual servers as per application and business requirements.

Managing Escalations and follow ups with ISP’s and Telecom vendors

Working with Firewall team whenever a network problem needs to be investigated

Analysis of network WAN usage and troubleshooting the high WAN utilization issues

Submitting the change management requests, updating service requests with in the ticketing System.

Providing On-call support for network issues and production emergencies when needed.

Provide network support on internal IT related bridge calls and provide suggestions to the other Support teams to investigate root cause of a problem

Prepare, update, and maintain technical and logistical network documentation

Atos, Santa Ana, CA Aug 15 to Jan 16

Sr. Network Engineer

Responsibilities

Working in high availability Nexus Environment and provide Level 3 Network Support.

Configuring, upgrading and deployment of Nexus 7010, 5596 and 2248.

Coded a lot of network, VMware, Ubuntu Linux and application-specific monitoring in Python/SSH with associated shell script.

Python scripting, Automation using Python, string parsing, libraries.

Working with Cisco Nexus 2148 Fabric Extender and Nexus 5500 series to provide a Flexible Access Solution for datacenter access architecture.

Ensuring problems are satisfactorily resolved in a timely manner with focus in providing high level of support for all customers.

Monitored and documented the stability and performance of Nike's WAN/MAN using Network Tools such as Solar Winds, Cisco Prime, App Critical, Wireshark

Involved in Implementation and Configuration (Profiles, I Rules) of F5 Big-IP C-4400 load balancers

Working with CISCO Nexus 7000, Nexus 5000, and Nexus 2000 platforms.

Experience with configuring Cisco 6500 VSS in Distribution layer of the Data center network

Configuration and Administration of Cisco and Switches.

Modified internal infrastructure by adding switches to support server farms and added servers to existing DMZ environments to support new and existing application platforms.

Network Redesign for Small Office/Campus Locations.

Implemented Site-to-Site VPNs over the internet utilizing 3DES, AES/AES-256 with ASA and JUNIPER SRX Firewalls

Network security including NAT/PAT, ACL, and ASA Firewalls.

Good knowledge with the technologies VPN, WLAN and Multicast.

Experience with communicating with different customers, IT teams in gathering the details for the project

Switching tasks include VTP, ISL/ 802.1q, IP Sec and GRE Tunneling, VLANs, Ether Channel, Trunking, Port Security, STP and RSTP.

Experience in installing and configuring DNS, DHCP servers.

Replace branch hardware with new 3900 routers and 2960 switches.

Conversions to BGP WAN routing. Which will be to convert WAN routing from OSPF to BGP (OSPF is used for local routing only) which involves new wan links.

Involved in the configuration & troubleshooting of routing protocols: MP-BGP, OSPF, LDP, EIGRP, RIP, BGP v4. Configured IP access filter policies. Cisco CLI, Cisco Works, Network Security, Network Analysis Tools

Responsible for layer 2 securities which was implemented using a dedicated VLAN ID for all trunk ports, setting the user ports to non-trunking, deployed port security when possible for user ports

Working knowledge on configuring access lists. Troubleshooting DNS/DHCP issues within the LAN network.

Enabled STP attack mitigation (BPDU Guard, Root Guard), using MD5 authentication for VTP, disabling all unused ports and putting them in unused VLAN and ensuring DHCP attack prevention where needed

Environment: MP-BGP, OSPF, LDP, EIGRP, RIP, BGP v4, JUNIPER SRX, DNS, DHCP, GRE Tunneling, VLANs, Ether Channel, Trunking, Port Security, STP,RSTP, NAT/PAT, ACL and ASA Firewalls, Nexus 2k,5kand 7k.

PSEG, Newark, NJ Feb 2014 – Jul 2015

Network Specialist

Responsibilities:

Assisted in troubleshooting LAN connectivity and hardware issues in the network.

Studied and analyzed client requirements to provide solutions for network design, configuration, administration, and security.

Involved in troubleshooting IP addressing issues and Updating IOS images using TFTP.

Maintained redundancy on Cisco 2600, 2800 and 3600 routers with HSRP.

Created a backup and recovery policy for software application and verified peripherals are working properly.

Monitor performance of network and servers to identify potential problems and bottleneck.

Performed RIP & OSPF routing protocol administration.

Interacted with support services to reduce the downtime on leased lines.

Troubleshoot problems on a day to day basis & provide solutions that would fix the problems within their Network.

Used to DHCP to automatically assign reusable IP addresses to DHCP clients.

Used ASA Firewall and ACLs for authentication of EIGRP to ensure high security on the network.

Configured Cisco 7200 routers which were also connected to Cisco ASA 5508 security appliances providing perimeter based firewall security.

Configuring ASA 5510 Firewall and accept/reject rules for network traffic.

Used load balancers ACE and load balancing technique with multiple components for efficient performance and to increase reliability through redundancy.

Used Network monitoring tools to ensure network connectivity and Protocol analysis tools to assess and pinpoint networking issues causing service disruption.

Optimized performance of the WAN network consisting of Cisco 3550/4500/6500 switches by configuring VLANs.

Monitor the operability and reliability of the network.

Maintenance and Troubleshooting of connectivity problems using Ping, Trace route.

Managed the IP address space using subnets and variable length subnet masks (VLSM).

LAN cabling in compliance with CAT5 standards.

Worked along with the team in ticketing issues.

Daily responsibilities included monitoring remote site using network management tools, assisted in design guidance for infrastructure upgrade & help LAN administrator with backbone connection and connectivity issues

Reliance Infocom, India June 2011 – Jan 2014

Network Engineer

Responsibilities:

Responsible for the configuration, implementation and operation of Cisco 3745 routers Cisco 6509 and 3560 L2/L3 switches

Removed Cisco 3600 and 2600 series routers and Cisco 2900 series switches from the current infrastructure and replaced them with the Cisco 6509 or 3560 L2/L3 switches.

Configured RSTP, MST and used VTP with 802.1q trunk encapsulation. Provided port binding and port security wherever required. Provided router redundancy through HSRP.

Configured ether channels using PAgP and LACP.

Installed and configured protocols like TCP/IP and Internet protocols on WAN network.

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 (Frame-relay and ATM).

Performed troubleshooting, while maintaining trouble ticket tracking, following internal/external

Escalation procedures and customer notifications.

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

Worked on HSRP and GLBP for first hop redundancy and load balancing.

Configured the Cisco router as IP Firewall and for NATing.

Prepare, update, and maintain technical and logistical network documentation.

Spretnost IT Solutions, Hyderabad, India Mar 2010– May 2011

Network Engineer

Responsibilities:

Work on different connection medium like Fiber and Copper Connectivity.

In-depth expertise in the implementation of analysis, optimization, troubleshooting and documentation of LAN/WAN networking systems.

Configured and troubleshoot OSPF and EIGRP.

WAN Infrastructure running OSPF & BGP as core routing protocol.

Support various Routers like 2600/3600/7200 series routers.

Tested authentication in OSPF and BGP.

Performed and technically documented various test results on the lab tests conducted.

Installed and configured Cisco ASA 5500 series firewall and configured remote access IPSEC VPN on Cisco ASA 5500 series

Responsible for Configuring SITE_TO_SITE VPN on VPN Concentrators series between Head office and Branch office.

Planning and configuring the routing protocols such as OSPF, RIP, and Static Routing on the routers.

Installation & configuration of Cisco VPN concentrator 3060 for VPN tunnel with Cisco VPN hardware & software client and PIX firewall

Configured Firewall logging, DMZs& related security policies & monitoring

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

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

Planning and configuring the entire IP addressing plan for the clients' network.

Assist the certification team and perform configuration of LAN\WAN technologies such as Ethernet, Fast Ethernet, and Gigabit Ethernet.

Environment: Cisco 7200/3845/3600/2800 routers, TACACS, EIGRP, OSPF, BGP, LAN/WAN, Cisco ASA 5500, Cisco 7200/3845/3600.

EDUCATION:

Bachelors from JNTU

References: Provided upon request

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