raghunath resume

7/31/2019 Raghunath Resume

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RESUME

P RAGHUNADHA REDDYEmail:[email protected]

Phone: +919731203806

• 3.8 years of experience in Product development.• Excellent Inter-personal communication skills and a team player.• Working knowledge in the environments like IOS, Sun Solaris, Linux• Good in C.• Have capability to solve customer issues - interacted with customers Bell Mobility,Swisscom, Sprint, KDDI and Verizon Wireless.• Mentored and supervised junior team members at San Jose and Bangalore

• Serving for “Cisco Systems, Inc, Bengaluru” as a Software Engineer from 10th April’06 totill date for the development of HomeAgent and SingleIP projects.

• Serving for “Reliance Infocomm, Gurgaon” as a Team Member in “Call Processing &Mobility Management” group for the development of “Mobile Integrated Network Systems(MINS)” and “Next Generation Gateway Node(NGGN)” from 20th Dec ‘04.

• Six months internship at “Bi Square Systems, New Delhi” on “Speech Encryption basedFPGAs” as a trainee engineer.

• Master of Engineering in Communications from “Birla Institute of Technologyand Sciences, Pilani” (2 yrs). 7.91 CGPA

• Bachelor of Technology in Electronics & Communication from “JNT University,Hyderabad” 79.1% Aggregate

Languages: C, C++, VHDL, Verilog HDLPackages: MATLAB 6.1, FPGA Adv 6.3, Active –HDL 5.1Operating system: Sun Solaris 9.0, Red Hat Linux 9.0Hardware Kits: 8085, 8086, TMS320C54XProtocols: SS7, SS7 over IP (Ulticom Signalware SIGTRAN Stack), SIP,

IS-41, MobileIP, Diameter, Radius, GTPv1Standards: 3gpp2 IS835-D for Home-Agent and CDMA-2000

Cisco Systems, Inc., Bengaluru, India

CARRIER SUMMARY

EDUCATION

TECHNICAL SKILLS

WORK EXPERIENCEE

EXPERIENCE



#1 Idle Timer Support for HASingleIP, Aug’08 – Till PresentThis project main is to implement Idle timer feature for packet data services on Home Agent and as welldealt with HASingleIP.

Responsibilities:

• Involved in capturing requirements for HA5.0 and SFS review.

• Took active part in reusing the current data base of HASingleIP for implementing HA5.0 features.• Used Inter Process Communication (IPC) for HASingleIP to handle CP-TP interaction for

HASingleIP.• Had involved in designing HA5.0 features and actively involved with team on review various

design approaches for features.• Working on unit-testing, devtest phase issues.

Environment: C, Cisco IOS, 3gpp2 IS-835D, MobileIP, 6500 series chassi, 7600 series Chassi, SAMIService Blade.

#2 HASingleIP CP-TP Interface, Feb’08 – July’08.This project is part of HASingleIP release for customer swisscom, bell mobility, KDDI/CTC, Sprint …etc.The mSEF gateway-on-SAMI solutions for HomeAgent present as a multiple-routers-on-a-stick model tothe operator with the attendant manageability and operational issues. The system design for Home AgentSingle IP will allow an operator to manage the gateway-on-SAMI on a per-blade basis. This result in a‘factor-of-6 decrease’ in operational complexity compared to the presentation of six individual processors per blade.

The HA Single IP model adopted is to reapportion functionality on a SAMI service blade from the currentmodel of six independent IOS processors, each executing both control and traffic plane functions, to amodel where one IOS processor is designated as a Control Plane (CP) processor with the other 5 beingdesignated as Traffic Plane (TP) processors.

Responsibilities:

• Involved in capturing requirements for HASingleIP CP-TP interface and SFS review with perspective of various control messages on HA.

• Took active part in reusing the current data base of HASingleIP for implementing CP-TPinterface.

• Used Inter Process Communication (IPC) for HASingleIP to handle CP-TP interaction for HASingleIP.

• Had involved in designing HASingleIP features along with CP-TP interface and actively involvedwith team on review process for various design approaches for features that are happened inSANJOSE, USA.

• Have given presentation on HA SingleIP in SANJOSE, USA to make reuse CP-TP interface for different Gateway products (ASN-GW, GGSN, PDSN).

• Involved in a demo for HASingleIP for customer SPRINT, USA.

• Worked on Sesut-based unit-testing for covergare white-box test cases for better quality of HASingleIP CP-TP interface

•

Have solved issues that are found during unit-testing, devtesting phases.Environment: C, Cisco IOS, 3gpp2 IS-835D, MobileIP, 7600 Series Chassi, 6500 Series Chassi, SAMIService Blade.

#3 HA4.0 Hot-Lining, March’07 – Jan’08.Hot-Lining provides a wireless operator with the capability to efficiently address issues with users thatwould otherwise be unauthorized to access packet data services. When a problem occurs such that a user may no longer be authorized to use the packet data service, a wireless operator using this feature may Hot-Line the user, and upon the successful resolution of the problem, return the user’s packet data services to



normal. When a user is Hot-Lined, their packet data service is redirected to a Hot-Line Application whichmay notify (if feasible) the user of the reason(s) that they have been Hot-Lined and offers them a means toaddress the reasons for Hot-Lining, meanwhile blocking access to normal packet data services. The hot-lining feature enables HA to monitor upstream user traffic using two different scenarios: active sessionand new session.

Responsibilities:• Involved in capturing requirements based on IS-835D for Hot-Lining.• Had involved in SFS, designing of Hot-Lining Feature.• Have solved issues that are found during unit-testing, devtesting phases.

Environment: C, Cisco IOS, 3gpp2 IS-835D, MobileIP, 7600 series Chassi, 6500 Series Chassi, SAMIService Blade, MWAM Service Blade, 7200 and 7301 routers.

#3 Per Selective FA Revocation, Nov’06 – Feb’07.The FA Revocation is base on Standard RFC 3543, and should be enabled on per PDSN/FA basis. By thisfeature, when a revocation message is received by HA, and the feature is enabled for the correspondingPDSN/FA, HA should send a revocation acknowledgement to PDSN/FA. However, HA should not deletethe binding. The feature should not change the HA behaviour, when the revocation is triggerred on the HA

(i.e. if binding on HA should be cleared, if revocation is initiated by HA). A side effect of this is home-agent will continue forwarding the traffic to PDSN/FA, though the binding on PDSN/FA could have beendeleted. All the MNs from corresponding PDSN/FA will send the de-registration request to HA when themobile closes the session.

Responsibilities:

• Involved in capturing requirements from customer and involved in SFS, Design process for thisfeatures.

• Have solved issues that are found during unit-testing, devtesting phases and customer productdeployment.

Environment: C, Cisco IOS, 3gpp2 IS-835D, MobileIP, 7600 series Chassi, 6500 Series Chassi, MWAM

Service Blade, 7200 and 7301 routers

Reliance Infocomm ITIC Dept., Gurgaon, India#5 Design and Development of Mobile Integrated Network Systems (MINS)

• MINS is an IP based solution that is designed to cater to a subscriber base of around 1000subscribers. It supports all the features and functionalities provided by the legacy switchingsystems• Design & Implementation of A1Interface & A1Module between BSC/MSC and MSC/BSC.

A1 Interface carries signaling information between the Call Control (CC) and Mobilitymanagement (MM) functions of the MSC and the control component of the BSC. A1Moduleis used at MSC & BSC to provide the APIs for sending and receiving the signaling data over A1 Interface.

• Worked on Ulticom Signalware SIGTRAN Stack , in which M3UA SLKs were made betweenCEs (MSC & HLR). Design & Implementation of IS41 Module, which handle messages to andfrom the HLR & CP Module via M3UA SLKs.

Environment: C++, Sun Solaris9.0, SIGTRAN(SS7 over IP), cdma-2000, is-41.

#6 Design and Development of ‘NGGN(Next-Generation Gateway Node)’



‘NGGN’ acts as signaling gateway (SG)/SIP-Proxy between MINS (MSC/HLR) and STP/Soft Switch andsupports GMSC (Gateway MSC) Functionalities. NGGN will handle signaling and session-related mes-sages for Inter-Network Call Scenarios, Roaming Scenarios and Voice Feature Scenarios.

Environment: C++, Sun Solaris9.0, Diameter Base Protocol, SS7, SIP, cdma-2000, is-41.

Bi Square Systems, New Delhi, India.#7 Design and Development of Speech Encryption based FPGAs, July’04 – Dec’04This project deals with the design and development of a voice & Data CryptoSystem code. TheCryptoSystem will be a “stand-alone unit”, is based on AES Algorithm. And a Vocoder Interfacedeveloped between Vocoder (AMBE-2000) and CyrptoEngine, which will act a s a PCM Tx/Rx.CryptoEngine and Vocoder Interface are targeted on Xilinx SPARTAN-II.

Responsibilities: Study of the System, Design, Coding, Simulation and Synthesis.Environment: Verilog Language, FPGA Adv 6.3, Windows 2000,

ACADEMIC PROJECTS:

#1 Filterbank Based Fingerprint Matching

This project explores fingerprint matching, in which a bank of Gabor filters used to capture both local andglobal details in a fingerprint as a compact fixed length FingerCode and is extremely fast.

Environment: C, Red Hat Linux 9.0

#2 EDFAs for WDM TransmissionThe aim of project is to show transmission through distributed EDF with 100Km separation between each pump power with a total distance product of 55 Gb/s-Mm. “Spectral-hole burning in EDFA” has studied.

Environment: MATLAB 6.1, Windows 2000.

#3 Simulation of 16-BIT CPU using VHDL

This project deals with simulation of a 16-bit CPU modeling it in VHDL and verifying its functionality bytiming diagrams. The CPU has 25 instructions that include various addressing modes. The CPU canhandle a single interrupt in order to synthesize and to simulate the design described in VHDL.

Environment: VHDL, Active-HDL 4.1, Windows 2000.

References : Furnished upon request

raghunath resume

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