Engineer Network

Sreenath Nannapaneni.

Phone: 314-***-****

********.***********@*****.***

Certifications

Cisco IOS- XR Specialist

Passed CCIE SP written exam

Certified IPv6 Gold Engineer

Cisco Certified Internetwork Professional (CCIP)

Cisco Certified Network Professional (CCNP)

Cisco Certified Network Associate (CCNA)

Cisco ID: CSCO11495566

Profile Summary

Over 11 years of extensive hands-on experience in IP network design,

implementation, and support of network routing, switching and security. Has

knowledge and experience in the area of networking concepts like

Internetworking, Internet protocols (IPv4 & IPv6), OSI Reference Model, IP

Routing Protocols, L2/L3 Switching, MPLS VPNs, IP Multicasting, Cisco Nexus

Switching, Metro Ethernet & Securing networks with Access-controls lists

and Firewalls.

. Strongly self-motivated, willing to assume responsibilities.

. Can work independently, lead or work within a team environment.

. Excellent communication skills, both oral and written.

Skill set

. Networking Concepts: IPv4, IPv6, OSI Model, TCP/IP, IP Multicasting,

Static Routes, Access lists, Route Maps, & Route Redistribution

. Routing Protocols: BGP, ISIS, OSPF, EIGRP & RIP

. LAN Protocols: IEEE 802.1q, IEEE 802.11, VTP, STP, RSTP, HSRP, GLBP,

VRRP

. WAN Technologies: MPLS L2/L3VPNs, VPLS, ATM & Frame Relay

. Operating Systems: Microsoft Windows 7/XP, UNIX & RHEL 5

. Hardware: Routers: Cisco CRS-1, ASR 9000, 7600, 3800, 2800 & Juniper

M320

. Switches: Cisco 6509, ME3400, ME3600, 4900M, ASR

9000V,Nexus 7000/5000

Firewalls: PIX 525, ASA 5510, Checkpoint NG

Firewalls

. Network Security: AAA, TACACS+, Radius, 802.1x, IPS/IDS, Checkpoint

SPLAT

. Network Management tools: CiscoWorks, SolarWinds, HP Open View

. Load Balancers: Cisco ACE, Brocade ADX 1000 & F5 BigIP

. Windows Server 2003 and 2008, installation & Configuration.

Education

BE (Bachelor of Engineering) Nagpur University,

Nagpur, India

Work Experience

Charter Communications (Saint Louis, MO)

Jul.2011-Present

Role: Network Engineer (IPv6) Core IP Architecture

Responsibilities:

. Architectural level network design and troubleshooting of IOS XR

platform devices like ASR 9000 and CRS-16.

. Creating processes and documentation for migrating to new IOS XR

version codes on ASR 9000 and CRS-16.

. Performed IOS-XR 4.2.3 complete regression test on ASR9000.

. Performed IOS-XR SMU testing for discovered bugs as well as security

notices from Cisco (PSIRTs).

. Involved in developing implementation guide for Long Haul Ethernet and

layer 2 business class MPLS VPNs.

. Developed and tested Engineering Design Document(EDD) to deploy a VDC

on the Nexus 7000 series of switches to address high level

architecture of new VDCs including requirements, current network

design state, proposed new logical and physical design and related

documents.

. Involved in developing Engineering design guide for Multicast

architecture.

. Evaluated and tested Cisco 7600 maximum route scale and created field

bulletin to avoid cef maximum allocation errors.

. Designed IPv6/IPv4 QoS templates for ASR 9000 and ME3600x and

performed extensive lab testing and documentation in order to develop

enterprise-wide Network engineering standards with a clear focus on

predictability, repeatability and functionality.

. Developing and testing configurations for CPE and aggregation

multilayer switches in a variety of layer-2 and layer-3 roles.

. Performed Ipv6 conformance test on all type of routers, switches,

firewall devices and load balancers using open source software TAHI,

Spirent & Ixia devices.

. Involved in IPv6 design and rollout plan for Core network.

AT & T (Bridgeton, MO)

Jan.2011- Jun.2011

Role: Sr. Network Operations & Support Eengineer

Responsibilities:

. Fault Management of AT&T USA and World Wide Network.

. Configuring and Troubleshooting Cisco CRS, 7600 Series Routers &

Juniper M320 Routers.

. Configuring MPLS, OSPF and IBGP/EBGP on Core routers, PE routers and

Route reflectors.

. Configuring and turning up T1, T3, OC3, OC13, OC48, OC192, OC768

circuits.

. T1, T3, DS3, Gigabit, OC3, OC12, OC48, OC192, OC768 circuits

troubleshooting.

. Analyze and monitor Network Backbone link utilization.

. Preparing Service Method of Procedures (SMOPs) for various Network

Maintenance events.

. Routers Out of band dial testing. Configuring and Managing AT&T EBGP

sessions with other ISPs.

. Capacity Management Planning.

. Network and Service Validation testing.

. Resolving Complex Circuit/ Network issues and routing problems.

. Network Design and implementation for the AT&T Corporate Customers

which Involves configuration of EBGP, MPLS/VPN, frame relay, PPP,

Access lists, Prefix lists, Route Maps, Service Policies, load

balancing, Multilink PPP and Protocol-independent multicast (PIM).

. Troubleshooting Network Security issues like Denial of Service. DDOS

attacks.

HexaGrid Inc. (St. Louis, MO)

Mar.2010- Dec.2010

Role: Cisco Network engineer

Responsibilities:

. Network design, installation, configuration and maintenance of LAN and

WAN networks in datacenter environment that include Cisco 2800 and3800

Routers, 6500, 3560 & 3550 Switches and Cisco ACS for AAA, TACACS and

RADIUS. Configuration includes EIGRP, OSPF, HSRP, VRRP, load

balancing, redundancy, and fault tolerance.

. Configured VLANs with 802.1q tagging. Configured Trunk groups, ether

channels, and Spanning tree for creating Access/distribution and core

layer switching architecture.

. Installed and configured HP OpenView

. Set up TFTP server to backup and restored configuration and IOS image

files for the Cisco routers, and Catalyst switches.

. Participate in all technical aspects of LAN, WAN projects including:

short and long term planning, implementation, project management and

operations support as required.

BluePal, Sunnyvale, CA

Nov.08-Dec.09

Role: Network Engineer

Responsibilities:

. Implemented configured and maintained Cisco routers using OSPF and

EIGRP routing protocols.

. Performed IOS upgrades on Cisco 3600, 2600, 2500 series routers and

Catalyst 4500 & 3500 switches.

. Worked with VOIP customer's network administrators to establish

recommended network practices such as 802.1q (VLAN trunking) and QOS

to insure trouble-free networks.

. Designed and Configured and implemented redundant 4503 switch using

HSRP.

. Provided Tier 2 and Tier 3 hands on support for NOC utilizing tools

such as CiscoWorks and HP Openview.

. Assisted in the implementation and deployment of a Cisco Aironet

802.11 B/G wireless infrastructure.

. Designed, configured, implemented and supported company's first

Windows NT domain structure including primary, backup, standalone,

file, print and database systems using Dell Power Edge series servers.

BluePal, Hyderabad, India

Feb.03-Jan.08

Role: Network Engineer

Responsibilities:

. Responsible for on-site managing and maintaining company networks.

. Planned, tested and evaluated various equipment, IOSs and

procedures for use within the network infrastructure. Continually

monitor, assess and improve network security, test and implement

new security technologies.

. Configured VLANs with 802.1q tagging. Configured Trunk groups,

ether channels, and Spanning tree for creating Access/distribution

and core layer switching architecture

. Designed and implemented security systems including various Cisco

IOS ACLs, Context-Based Access Control, PIX Firewall (PIX 525),

Cisco ASA 5510, Cisco Secure Access Control Server (Radius/TACACS+)

. Designed and implemented reliable multiservice MAN/WAN IP

infrastructure using Frame Relay, using Cisco 3600,

2600(w/integrated CSU/DSU) and 2500 series routers, Cisco Catalyst

3750 and 3550 series switches.

. Physical Installation and Configuration of Cisco SOHO Routers (800

series) Access Layer (1700, 2500, 2600) and Distribution layer

Routers (2800, 3660)

. Set up Leased Lines for multiple branch connectivity in various

topologies.

. Designed and Configured LAN segmentation using VLANs and Inter-VLAN

Routing with appropriate IP address subnetting with 802.1q Trunk

uplinks.

. Performed IOS upgrades, password recovery and IOS disaster recovery

processes on Cisco 3600, 2600, 2500 series routers and Catalyst

2950, 3550, 3560, 3750 switches.

. Administrate and maintain the group of Windows 2003 high

availability servers ensuring uptime, applications & operating

system patches, maintenance releases, applying appropriate security

policies, Group Policy Objects (GPO), and performing backup and

recovery duties. Maintain user's log.

. Install setup and administer servers and workstations on LAN with

Windows 2000, NT 4.0, 9x and XP.

. Installing required Software on the clients Desktops & Laptops.

. Installation of new software and devices like Network Printer,

scanner and other devices as per user requirement.

. Manage all access to users account, file, print, email servers, and

Network applications.

. Troubleshoot computer/network, Internet and email problems for

users.

References: on request

Contact this candidate