# This file is hw1-1.tmpl.txt
#
# Create the core event scheduler
set ns [new Simulator]

# Set up nam trace file
set f [open p1.nam w]
$ns namtrace-all $f

# Create 5 nodes
for {set i 0} {$i < 5} {incr i} {
        ... FILL IN HERE ...
}

# Create links
# All links have 10Mbps bandwidth and 5ms delay
        ... FILL IN HERE ...

# Set up Distance Vector routing
        ... FILL IN HERE ...

# Create a UDP agent and attach it to node node 0
        ... FILL IN HERE ...

# Create a CBR traffic source associate it with the UDP agent
        ... FILL IN HERE ...

# Create a NULL agent and attach it to node 4
        ... FILL IN HERE ...

# Connect the source and the destination agents
        ... FILL IN HERE ...
	
# Mark UDP packets with blue color
        ... FILL IN HERE ...

# Start CBR traffic at 0.1s and stop it at 1.0s
        ... FILL IN HERE ...

# Bring down the link between node 3 and node 4 at 0.4s
        ... FILL IN HERE ...

$ns at 1.0 "finish"

proc finish {} {
    global ns f
    $ns flush-trace
    close $f
    exec ~csci551/nam p1.nam &
    exit 0
}

$ns run