# This file is hw1-2.tmpl.txt
#
# Create the core event scheduler
set ns [new Simulator]

# Set up nam trace file
set f [open p2.nam w]
$ns namtrace-all $f

# Create 6 nodes
for {set i 0} {$i < 6} {incr i} {
        ... FILL IN HERE ...
}

# Create links
# All links are of 10Mbps bandwidth and 10ms delay
# except for the link between node 2 and 3
        ... FILL IN HERE ...

# Show queue length at the bottleneck link
$ns duplex-link-op $n(2) $n(3) queuePos 0.5

# Set up queue limit of the bottleneck link
        ... FILL IN HERE ...

# Set up routing protocol
$ns rtproto DV

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

# Create a CBR traffic source and attach it to udp
        ... FILL IN HERE ...

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

# Connect the CBR source and the destination
        ... FILL IN HERE ...

# Create a TCP source and attach it to node 1
        ... FILL IN HERE ...

# Create a TCP sink and attach it to node 5
        ... FILL IN HERE ...

# Establish the TCP connection
        ... FILL IN HERE ...

# Create a FTP traffic source and attach it to the TCP source
        ... FILL IN HERE ...

# Distinguish flows by different colors
$ns color 1 Blue
$ns color 2 Red
$udp set class_ 1
$tcp set class_ 2

# Schedule events to happen
        ... FILL IN HERE ...

$ns at 3.0 "finish"

proc finish {} {
  global ns f
  $ns flush-trace
  close $f
  exec ~csci551/nam p2.nam &
  exit 0
}

$ns run