#
# trafgen.ns - template for traffic generation
#
# Precondition: Two nodes (here, called $sender and $reciver, but can be
# called anything) have been created, and they have a valid route between
# them.
#
# Note: To use make multiple streams of traffic, you need a seperate agent,
# traffic source, and sink for each (though you can, of course, have more
# than one agent or sink on the same node.)
#

#
# Create a TCP agent and attach it to sender. You can use use UDP instead
# by changing "Agent/TCP" to "Agent/UDP" (and, you'll probably want to rename
# $tcp0 )
#
set tcp0 [new Agent/TCP]
$ns attach-agent $sender $tcp0

#
# Create a CBR traffic source and attach it to tcp0. Specify traffic
# in terms of packetSize and rate
#
set cbr0 [new Application/Traffic/CBR]
$cbr0 set packetSize_ 1024
$cbr0 set rate_ 100Mb
$cbr0 attach-agent $tcp0

#
# Create a sink for the agent, an put it on the reciver
#
set null0 [new Agent/Null] 
$ns attach-agent $receiver $null0

#
# Connect the source to the sink
#
$ns connect $tcp0 $null0