Class:      QoS in the Internet, Fall 2002
Instructor: Professor Ott
website:    http://web.njit.edu/~ott/QoS.F.02/


Homework for Thursday September 05, 2002:

Read the ``Syllabus'' on this website. 


Homework for Thursday September 12:

Study the ``example tcl'' page, in particular the explaining text.
Look at the  out.tr  and  readfile.txt  files.

Download and install NS-2 into your directory.
Obtain your own  ``ns''  and  ``nam''  executables and play with them.

Optional (recommended) extract the file  2tcp_1node.tcl  from 
the page ``example tcl file'' and execute  ns  with  it.
(preferably your own  ns , otherwise the  NJIT version).

Optional (recommended) take the file  out.nam  from this website
(or from your running  ns  with  2tcp_1node.tcl  as above)
and execute  nam  with it (rename  out.nam  first).
(preferably your own  nam , otherwise the  NJIT version).


Homework for Thursday September 19:

Write your own tcl file of a network of your choice, or of one to be 
described in class. 
Run your own version of  ns  with it.

Further to be announced.

From ~ Sept 20 on you will work mostly with the  ns  and  nam  programs
in  /usr/local/bin/  .


Soon after Sept 19:
Produce a graph of  tcp  throughput as function of 
say  (TCP maxwindow size, or bufferesize, or linkspeed, or 
propagation delay, or ... ).

If you have no experience plotting data, go to a Unix Environment and do

man gnuplot   


Good Luck, Teun Ott.