I was educated in [http://www.lonelyplanet.com/destinations/indian_subcontinent/delhi/ New Delhi], [http://indiaimage.nic.in/ India], doing my schooling at [http://ramjasrkp.com/ Ramjas School, R.K. Puram ] and  [http://www.dpsrkp.net/ Delhi Public School, R.K. Puram] and my undergraduate degreee in Computer Science at [http://www.cse.iitd.ernet.in/  IIT Delhi].  I did my graduate work at 
[http://www.cs.berkeley.edu UC Berkeley] 
where my advisor was [http://cratos.pc.unicatt.it/english_version/staff/ferrari/ferrari.htm  Prof. Domenico Ferrari]. 
As a graduate student I interned at [http"//www.parc.xerox.com Xerox PARC] with [http://www.icsi.berkeley.edu/Board/shenkerbio.html  Scott Shenker] in 1988 and at
[http://cm.bell-labs.com/cm/cs/ Center 1127] at [http://www.bell-labs.com AT&T Bell Laboratories] (now a part of Lucent) with [http://www.princeton.edu/~hos/frs122/precis/morgan.htm Sam Morgan] in 1989 and 1990.]. 
My thesis on [http://citeseer.csail.mit.edu/context/6562/0 Fair Queueing] and [http://citeseer.lcs.mit.edu/context/6567/287 Packet-Pair Flow Control] won the [http://www.eecs.berkeley.edu/Students/Awards/index.shtml#sakrison Sakrison Prize]. 

Conventional wisdom states that after a [phd.txt PhD ]one has three [http://www.phdjobs.com/ career choices]: work in a research lab, join a startup, or join academia. Fortuitously, my career has included stints in all three.

I joined Center 1127 at AT&T Bell Laboratories in September 1991. I really enjoyed the heady mixture of [http://cm.bell-labs.com/cm/cs/index.html cutting-edge research ]and hands-on work at the labs, and my five years there were an amazing learning experience. It didn't hurt that AT&T was there to pick up the tab for any research that fit my fancy, ranging from talking heads (speech-assisted animation) to telepresence (internet-acessible cars). My main research was in helping to design and implement a wide-area ATM network called [http://citeseer.ist.psu.edu/94449.html XUNET]. I also took time off to teach for a semester at [http://www.cse.iitd.ernet.in IIT Delhi] in 1993, at [http://www.ee.columbia.edu Columbia ]in 1995, and to write a [http://www.awprofessional.com/title/0201634422 graduate-level textbook in computer networking].

When AT&T broke up in 1995, many of us decided to move to academia. I joined [http://www.cs.cornell.edu Cornell ]as an Associate Professor in 1996.  Whille I was there I started a new course, 
[http://www.cs.cornell.edu/courses/cs519/2004sp/ CS 519] ("Engineering Computer Networks") based on my book, 
started a research group ([http://www.cs.cornell.edu/cnrg/ Cornell Network Research Group]), and helped to organize a computer science research fair (Bits On Our Mind, or [http://www.cis.cornell.edu/boom/ BOOM]). My research at Cornell was in the area of network performance management, and, in particular, on network simulation. My students [http://www.solidcore.com/Company/executive.html#ros Rosen Sharma], Snorri Gylfason, Wilson Huang, and I came up with a new technique for network simulation that we embodied in the [http://citeseer.ist.psu.edu/2669.html Entrapid ]simulator. This simulator served as the basis for a startup, [http://www.ensim.com Ensim] that we incorporated in June 1998.

Ensim grew rapidly to about twenty people in about six months. We set up offices in a [http://www.mapquest.com/maps/map.adp?country=US&address=840+Hanshaw+Road+&city=Ithaca&state=NY shopping complex] near Cornell and started working on our first product. Our first rude shock was to find out that no one wanted to pay any money (at least to us) for a network simulator. Second, we found that the only way to raise money and retain our employees was to move to Silicon Valley. We moved the company to Silicon Valley in May 1999 and I moved with it. With high hopes, lots of [http://www.internetnews.com/xSP/print.php/553811 funding], and with a slew of [http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&p=1&u=%2Fnetahtml%2Fsearch-bool.html&r=0&f=S&l=50&TERM1=ensim&FIELD1=&co1=AND&TERM2=&FIELD2=&d=ptxt ideas ]on network and operating system virtualization, I moved full time to Ensim in July 1999.

My five years at Ensim were a great learning opportunity. I learnt what it takes to translate research ideas to products, and how products enter markets. I finally figured out the difference between marketing and sales (!) and how money works. At Ensim I did everything from wiring telephones and pre- and post-sales technical support to corporate strategy and boardroom politics. It was fun, but after five years I decided it was time to return to academia. 

I have been at [http://www.cs.uwaterloo.ca Waterloo] since July 2003, working on something I call [http://mindstream.watsmore.net 'tetherless computing'] (this term is due to folks at [http://www.rpi.edu/research/it_focus/tetherless.html RPI] -- I liked it well enough to copy it). I hold a [http://www.chairs.gc.ca/web/about/index_e.asp Canada Research Chair] and am looking forward to doing interesting work in this exciting field of research.