Lecture Notes, Sept 2002
                         Univ. de Los Andes,
                           Merida, Venezuela
 

                   Eitan Altman, Tania Jimenez
 
 

The lecture notes are available in postscript.
 

TCL FILES:

Scripts for TCP examples

ex1.tcl TCP and CBR connections sharing a bottleneck link.
rdrop.tcl TCP and CBR connections with random drops.
ex3.tcl Example with several TCP connections. Delays and initial trnamission times created at radom.
shortTcp.tcl This is a script for working with short TCP files with several source nodes, sharing a single bottleneck link.
shortTcp2.tcl A script with similar functionalities, a more sophisticated tcl programming. Extra monitoring features.

Scripts for unicast and multicast routing

ex2.tcl unicast routing.
ctr.tcl Multicast routing, CTR.
dvmrp.tcl Multicast routing, DVMRP.
pimdm.tcl Multicast routing, PIMDM.
bst.tcl Multicast routing, bi-directional shared tree.

Scripts for RED queue

red.tcl This is a script for 3 TCP connections with a RED bottleneck buffer. Parameters are configured automatically.
drptail.tcl The same network as in red.tcl but with a dropt tail buffer. The queue monitoring is done differently.
shortRED.tcl This is a script for working with short TCP files with several source nodes, sharing a single bottleneck link with a RED buffer.

Scripts for diffserv

diffs.tcl This is a script for working with short TCP files with several source nodes, sharing a single bottleneck link. It is used to show how with proper choice of CIR, marking decreases losses of vulnerable packets (syns etc).

Scripts for LANs

802p3.tcl
csma.tcl

Scripts for Classical Queueing Models

mm1.tcl An M/M/1 queue
mm1k.tcl An M/M/1 queue with finite capacity

Scripts for mobile networks

Scripts for LANs

802p3.tcl
csma.tcl

Scripts for Classical Queueing Models

mm1.tcl An M/M/1 queue
mm1k.tcl An M/M/1 queue with finite capacity

Scripts for mobile networks

wrls-dsdv.tcl TCP over a 3 nodes Ad-hoc network with DSDV routing protocol.
wrls-dsr.tcl TCP over a 3 nodes Ad-hoc network with DST routing protocol.
wrls-aodv.tcl TCP over a 3 nodes Ad-hoc network with AODV routing protocol.
wrls-tora1.tcl TCP over a 3 nodes Ad-hoc network with TORA routing protocol.
wrls-tora2.tcl TCP over a 4 nodes Ad-hoc network with TORA routing protocol.

Others

rv1.tcl Testing Random Variables

avr.awk Computing the average
stdv.awk Computing thestandard deviation.

throughput.pl Computing the throughput
column.pl Extracting a column from a file

The Network Simulator Home Page
The ns Manual
Nortel-Diffserv module manual for ns
Marc Greis's tutorial
Tutorial by Jae Chung and Mark Claypool
RED Queue Management page