Archive for August 2009

About Me

August 19, 2009

Ashwin Tumma

DOB : 23rd September, 1989

Email : ashwin [dot] tumma23 [at] gmail [dot] com

tummaak08 [dot] comp [at] coep [dot] ac [dot] in

Academic Details:

  • Pursing B. Tech. (Computer Engineering) at College of Engineering, Pune
  • School: J. N. Petit Technical High School, Pune
  • High School: Diploma  in Computer Engineering : Government Polytechnic, Pune

Extra – Curricular Activities :

  • Secretary, ACM Student Chapter, College of Engineering, Pune
  • Conduct Training Sessions of LDAP, Moodle for students and faculty at engineering colleges.
  • Lab Admin Team, Moodle and Website Management Team, CoEP’s Free Software Users’ Group, College of Engineering, Pune(CoEP).
  • User Accounts’ Management Team, Department of Computer and IT, CoEP.
  • Linux Support Network for various colleges in Pune
  • Co-ordinator, ‘Code Junkie – The C Programming Contest’, in the technical event MindSpark ’09.
  • Student Head, CMESA-Computer Engineering Students’ Association, Govt.Polytechnic, Pune (2007-08)
  • Editor, College Magazine and Snippets, Govt. Polytechnic, Pune
  • Cultural Activities Secretary, Govt. Polytechnic, Pune


  • Invitation for a talk on LDAP GUI and deployment of Open Source softwares in Academic Organizations, CeBIT 2011 Open Source Confernce, Hannover, Germany.
  • Idea of LDAP-GUI for Academic Institutes listed in top 15 open-source ideas in India. Host: ACM Bangalore, India, 2010.
  • Open Source Project of Hospitalization Records Analysis added to Visual Analytics Benchmark Repository of HCIL, University of Maryland, United States of America, 2010.
  • Best Reviewer Award 2010, NASSCOM and Global Graphics
  • Academic Excellence Award 2009, Govt. Polytechnic, Pune
  • Grade ‘B’ in Elementary Drawing Examination
  • Best Essayist at Symbiosis School, Pune

Project Details:

  • Hospitalization Records – Characterization of Pandemic Spread

As an entry in IEEE Visual Analytics Science and Technology [VAST] Challenge,
VisWeek 2010, Salt Lake City, Utah, USA.
Team Size: 3
Role: Layout Implementation, Coding, Testing, Documentation
Domain : Java [Swings]

  • Steganography Tool Design

Duration : 4 months
Team Size: 3
Role: Layout Implementation, Coding, Testing, Documentation
Domain : Java [Swings]

  • Training and Placement Department Management System

Duration : 1 month
Team Size : 4
Role : Layout implementation, Coding, Testing and Deployment of the application
Domain : JSP, Oracle [Oracle 10g]


  • Implementation of LDAP (Lightweight Directory Access Protocol) in Department of Computer Engg. and IT, CoEP

Duration : 2 months
Team Size : 3
Role : Survey Co-ordination, Lab Administration and maintenance, Implementation of Directory Structure and User Account management, LDAP integration with Moodle.


  • Non-Technical Project on GPL, LGPL.

Duration : 1 month
Team Size : 2
Role : Information Gathering, Report Generation


  • Virtual Car Showcase in OpenGL

Duration : 2 months
Team Size : 4
Role : Layout implementation, Coding, Testing, Report and Documentation
Domain : OpenGL


  • Paperless Government Polytechnic, Pune

Duration : 3 months
Team Size : 3
Role : Survey Co-ordination, Layout implementation, Coding, Testing and
Deployment of the application, Report Development
Domain : Visual Basic, MS Access


The medley of “names” of Network Models and their Layers

August 19, 2009

At the beginning itself lets make it clear that the information in this article is obtained from various democratic Web Sources, so this might intervene to the literature that we generally find in our Network Textbooks. Towards the end, I have also written down the links from where I have collected this information.

I had a phone call in the evening from a friend (‘Computer Networks’ Quiz is in the next week) who was asking me about the Network Models and the difference between the ‘Internet Model’, OSI Model and the TCP/IP Protocol Suite. Now, as far as I knew, the TCP/IP Protocol Suite and the Internet Model are one and the same things, only the name ‘TCP/IP Model’ is the alias of ‘Internet Model’ or might be vice versa. But, then thought better clear the confusion.

Wikipedia says that “The TCP/IP Model is sometimes called the Internet Model .”

IETF (Internet Engineering Task Force) are responsible for maintaining the model and other related models.

The above article really gives a clear explanation of the layered stack of the Internet Model. It has also mentioned the names of the textbooks, and gives a nice tabular description telling that ,

These textbooks are secondary sources that may contravene the intent of RFC 1122 and other IETF primary sources such as RFC 3439 .

Different authors have interpreted the RFCs differently regarding the question whether the Link Layer (and the TCP/IP model) covers Physical Layer issues, or if a hardware layer is assumed below the Link Layer. Some authors have tried to use other names for the Link Layer, such as network interface layer, in view to avoid confusion with the Data Link Layer of the seven layer OSI Model. Others have attempted to map the Internet Protocol model onto the OSI Model.”

Below this the RFC1122.txt file entitled :

 Requirements for Internet Hosts -- Communication Layers

that has the description of Layers

How do people have such great faith?

August 15, 2009

Recently had gone to Aurangabad for a vacation. On the very first day, we had planned to go to the Daulatabad Fort. Walking and trekking uphill and that too at 12 noon with the sun shining bright, had made us tired. We had already admired the scenic beauty of the fort and the intellectual prowess of its masters, and had no energy left to admire anything more on the fort. But we didnt knew, that the fort had more with it, that was not revealed to us till then. Almost everything there had a design whose design expertise remains unmatched till date.

Trodding, we came near a Ganesh temple,  that was pretty far to be noticed from the main path. There we met a lady, who greeted us like no one had done before in the city. We were wondering why is this lady here? why is she sitting alone in the temple with no one around. Our curiosity found its way, and we asked her about it. The explanation given by her, was indeed heart-touching. She said, that she belonged to  the village that was near the fort and that she came to the temple everyday, irrespective of the any season in the year. There she performs pooja of the lord. On asking her, how does she come to the hill-top everyday, she replied, that her faith isn’t bounded by any adhoc excuse. She really was making an attempt to end the ‘tyranny of geography’ between her and her immortal faith.

Ironically, we were ashamed of ourselves, that we being youngsters were tired of trekking and an old lady used to walk for miles the same distance! Indeed, she was successful in teaching me that your faith and trust must not be dependent on any physical or geographical thing. That day, I understood the real meaning of the phrase , ” It has to come from within!!! “. Below is the photograph of that lady, who will remain unforgettable!The old lady