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|
# This test suite is for validating the session level simulation support
# in ns.
#
# To run all tests: test-all-session
#
# To run individual tests:
# ns test-suite-session.tcl Session1
# ns test-suite-session.tcl Session2
# ns test-suite-session.tcl Session3
# ...
#
# To view a list of available tests to run with this script:
# ns test-suite-session.tcl
#
remove-all-packet-headers ; # removes all except common
add-packet-header Flags IP TCP RTP ; # hdrs reqd for validation test
# FOR UPDATING GLOBAL DEFAULTS:
Agent/TCP set SetCWRonRetransmit_ false
# The default is "true".
Class TestSuite
TestSuite instproc init {} {
$self instvar ns_ net_ defNet_ test_ topo_ node_ testName_
set ns_ [new SessionSim]
#$ns_ use-scheduler List
#$ns_ namtrace-all [open all.tr w]
puts "tracing"
if {$net_ == ""} {
set net_ $defNet_
}
if ![Topology/$defNet_ info subclass Topology/$net_] {
global argv0
puts "$argv0: cannot run test $test_ over topology $net_"
exit 1
}
set topo_ [new Topology/$net_ $ns_]
foreach i [$topo_ array names node_] {
# This would be cool, but lets try to be compatible
# with test-suite.tcl as far as possible.
#
# $self instvar $i
# set $i [$topo_ node? $i]
#
set node_($i) [$topo_ node? $i]
}
if {$net_ == $defNet_} {
set testName_ "$test_"
} else {
set testName_ "$test_:$net_"
}
}
TestSuite instproc finish args {
$self instvar ns_
$ns_ flush-trace
puts "\t#pkt\t#pkt"
puts "rcvr\trcvd\tlost"
set i 0
foreach index $args {
puts "$i\t[$index set npkts_]\t[$index set nlost_]"
incr i
}
# exec awk -f ../nam-demo/nstonam.awk all.tr > [append file \.tr]
# puts "running nam ..."
# exec nam $file &
exit 0
}
proc usage {} {
global argv0
puts stderr "usage: ns $argv0 <tests> \[<topologies>\]"
puts stderr "Valid tests are:\t[get-subclasses TestSuite Test/]"
puts stderr "Valid Topologies are:\t[get-subclasses SkelTopology Topology/]"
exit 1
}
proc isProc? {cls prc} {
if [catch "Object info subclass $cls/$prc" r] {
global argv0
puts stderr "$argv0: no such $cls: $prc"
usage
}
}
proc get-subclasses {cls pfx} {
set ret ""
set l [string length $pfx]
set c $cls
while {[llength $c] > 0} {
set t [lindex $c 0]
set c [lrange $c 1 end]
if [string match ${pfx}* $t] {
lappend ret [string range $t $l end]
}
eval lappend c [$t info subclass]
}
set ret
}
TestSuite proc runTest {} {
global argc argv
switch $argc {
1 {
set test $argv
isProc? Test $test
set topo ""
}
2 {
set test [lindex $argv 0]
isProc? Test $test
set topo [lindex $argv 1]
isProc? Topology $topo
}
default {
usage
}
}
set t [new Test/$test $topo]
$t run
}
# Skeleton topology base class
Class SkelTopology
SkelTopology instproc init {} {
$self next
}
SkelTopology instproc node? n {
$self instvar node_
if [info exists node_($n)] {
set ret $node_($n)
} else {
set ret ""
}
set ret
}
SkelTopology instproc add-fallback-links {ns nodelist bw delay qtype args} {
$self instvar node_
set n1 [lindex $nodelist 0]
foreach n2 [lrange $nodelist 1 end] {
if ![info exists node_($n2)] {
set node_($n2) [$ns node]
}
$ns duplex-link $node_($n1) $node_($n2) $bw $delay $qtype
foreach opt $args {
set cmd [lindex $opt 0]
set val [lindex $opt 1]
if {[llength $opt] > 2} {
set x1 [lindex $opt 2]
set x2 [lindex $opt 3]
} else {
set x1 $n1
set x2 $n2
}
$ns $cmd $node_($x1) $node_($x2) $val
$ns $cmd $node_($x2) $node_($x1) $val
}
set n1 $n2
}
}
Class NodeTopology/4nodes -superclass SkelTopology
NodeTopology/4nodes instproc init ns {
$self next
$self instvar node_
set node_(n0) [$ns node]
set node_(n1) [$ns node]
set node_(n2) [$ns node]
set node_(n3) [$ns node]
}
Class Topology/net4 -superclass NodeTopology/4nodes
# Create a simple four node topology:
#
# n3
# /
# 1.5Mb,10ms / 1.5Mb,10ms
# n0 --------- n1
# \ 1.5Mb,10ms
# \
# n2
#
Topology/net4 instproc init ns {
$self next $ns
$self instvar node_
Simulator set NumberInterfaces_ 1
$ns duplex-link $node_(n0) $node_(n1) 1.5Mb 10ms DropTail
$ns duplex-link $node_(n1) $node_(n2) 1.5Mb 10ms DropTail
$ns duplex-link $node_(n1) $node_(n3) 1.5Mb 10ms DropTail
if {[$class info instprocs config] != ""} {
$self config $ns
}
}
Class NodeTopology/6nodes -superclass SkelTopology
NodeTopology/6nodes instproc init ns {
$self next
$self instvar node_
set node_(n0) [$ns node]
set node_(n1) [$ns node]
set node_(n2) [$ns node]
set node_(n3) [$ns node]
set node_(n4) [$ns node]
set node_(n5) [$ns node]
}
Class Topology/net6 -superclass NodeTopology/6nodes
#
# Create a simple six node topology:
#
# n0
# / \
# n1 n2
# / \ / \
# n3 n4 n5
#
# All links are of 1.5Mbps bandwidth with 10ms latency
#
Topology/net6 instproc init ns {
$self next $ns
$self instvar node_
Simulator set NumberInterfaces_ 1
$ns duplex-link $node_(n0) $node_(n1) 1.5Mb 10ms DropTail
$ns duplex-link $node_(n0) $node_(n2) 1.5Mb 10ms DropTail
$ns duplex-link $node_(n1) $node_(n3) 1.5Mb 10ms DropTail
$ns duplex-link $node_(n1) $node_(n4) 1.5Mb 10ms DropTail
$ns duplex-link $node_(n2) $node_(n4) 1.5Mb 10ms DropTail
$ns duplex-link $node_(n2) $node_(n5) 1.5Mb 10ms DropTail
if {[$class info instprocs config] != ""} {
$self config $ns
}
}
# Definition of test-suite tests
# Testing group join for SessionSim in a simple topology
Class Test/Session1 -superclass TestSuite
Test/Session1 instproc init net {
$self instvar defNet_ test_ net_
set defNet_ net4
set test_ Session1
set net_ $net
$self next
}
Test/Session1 instproc run {} {
$self instvar ns_ node_ testName_
set grp0 [Node allocaddr]
set udp0 [new Agent/UDP]
$ns_ attach-agent $node_(n2) $udp0
$udp0 set dst_addr_ $grp0
$udp0 set dst_port_ 0
set cbr0 [new Application/Traffic/CBR]
$cbr0 attach-agent $udp0
$ns_ create-session $node_(n2) $udp0
set rcvr0 [new Agent/LossMonitor]
$ns_ attach-agent $node_(n0) $rcvr0
set rcvr1 [new Agent/LossMonitor]
$ns_ attach-agent $node_(n1) $rcvr1
set rcvr2 [new Agent/LossMonitor]
$ns_ attach-agent $node_(n2) $rcvr2
set rcvr3 [new Agent/LossMonitor]
$ns_ attach-agent $node_(n3) $rcvr3
$ns_ at 0.3 "$cbr0 start"
$ns_ at 0.3 "$node_(n1) join-group $rcvr1 $grp0"
$ns_ at 0.3 "$node_(n0) join-group $rcvr0 $grp0"
$ns_ at 0.3 "$node_(n3) join-group $rcvr3 $grp0"
$ns_ at 0.3 "$node_(n2) join-group $rcvr2 $grp0"
$ns_ at 1.1 "$self finish [list $rcvr0 $rcvr1 $rcvr2 $rcvr3]"
$ns_ run
}
# Testing group join for SessionSim in a 6-node topology
Class Test/Session2 -superclass TestSuite
Test/Session2 instproc init net {
$self instvar net_ defNet_ test_
set defNet_ net6
set test_ Session2
set net_ $net
$self next
}
Test/Session2 instproc run {} {
$self instvar ns_ node_ testName_
set grp0 [Node allocaddr]
set udp0 [new Agent/UDP]
$ns_ attach-agent $node_(n0) $udp0
set cbr0 [new Application/Traffic/CBR]
$cbr0 attach-agent $udp0
$udp0 set dst_addr_ $grp0
$udp0 set dst_port_ 0
$ns_ create-session $node_(n0) $udp0
set rcvr0 [new Agent/LossMonitor]
set rcvr1 [new Agent/LossMonitor]
set rcvr2 [new Agent/LossMonitor]
set rcvr3 [new Agent/LossMonitor]
set rcvr4 [new Agent/LossMonitor]
set rcvr5 [new Agent/LossMonitor]
$ns_ attach-agent $node_(n0) $rcvr0
$ns_ attach-agent $node_(n1) $rcvr1
$ns_ attach-agent $node_(n2) $rcvr2
$ns_ attach-agent $node_(n3) $rcvr3
$ns_ attach-agent $node_(n4) $rcvr4
$ns_ attach-agent $node_(n5) $rcvr5
$ns_ at 0.2 "$node_(n0) join-group $rcvr0 $grp0"
$ns_ at 0.2 "$node_(n1) join-group $rcvr1 $grp0"
$ns_ at 0.2 "$node_(n2) join-group $rcvr2 $grp0"
$ns_ at 0.2 "$node_(n3) join-group $rcvr3 $grp0"
$ns_ at 0.2 "$node_(n4) join-group $rcvr4 $grp0"
$ns_ at 0.2 "$node_(n5) join-group $rcvr5 $grp0"
$ns_ at 0.1 "$cbr0 start"
$ns_ at 1.6 "$self finish [list $rcvr0 $rcvr1 $rcvr2 $rcvr3 \
$rcvr4 $rcvr5]"
$ns_ run
}
# Testing loss dependency for SessionSim in a 6-node topology
Class Test/Session3 -superclass TestSuite
Test/Session3 instproc init net {
$self instvar net_ defNet_ test_
set defNet_ net6
set test_ Session3
set net_ $net
$self next
}
Test/Session3 instproc run {} {
$self instvar ns_ node_ testName_
set grp0 [Node allocaddr]
set udp0 [new Agent/UDP]
$udp0 set ttl_ 3
$ns_ attach-agent $node_(n0) $udp0
$udp0 set dst_addr_ $grp0
$udp0 set dst_port_ 0
set cbr0 [new Application/Traffic/CBR]
$cbr0 attach-agent $udp0
set sessionhelper [$ns_ create-session $node_(n0) $udp0]
set rcvr0 [new Agent/LossMonitor]
set rcvr1 [new Agent/LossMonitor]
set rcvr2 [new Agent/LossMonitor]
set rcvr3 [new Agent/LossMonitor]
set rcvr4 [new Agent/LossMonitor]
set rcvr5 [new Agent/LossMonitor]
$ns_ attach-agent $node_(n0) $rcvr0
$ns_ attach-agent $node_(n1) $rcvr1
$ns_ attach-agent $node_(n2) $rcvr2
$ns_ attach-agent $node_(n3) $rcvr3
$ns_ attach-agent $node_(n4) $rcvr4
$ns_ attach-agent $node_(n5) $rcvr5
$ns_ at 0.2 "$node_(n0) join-group $rcvr0 $grp0"
$ns_ at 0.2 "$node_(n1) join-group $rcvr1 $grp0"
$ns_ at 0.2 "$node_(n2) join-group $rcvr2 $grp0"
$ns_ at 0.2 "$node_(n3) join-group $rcvr3 $grp0"
$ns_ at 0.2 "$node_(n4) join-group $rcvr4 $grp0"
$ns_ at 0.2 "$node_(n5) join-group $rcvr5 $grp0"
set loss_module1 [new SelectErrorModel]
$loss_module1 drop-packet 2 20 1
$loss_module1 drop-target [$ns_ set nullAgent_]
set loss_module2 [new SelectErrorModel]
$loss_module2 drop-packet 2 10 1
$loss_module2 drop-target [$ns_ set nullAgent_]
set loss_module3 [new SelectErrorModel]
$loss_module3 drop-packet 2 10 1
$loss_module3 drop-target [$ns_ set nullAgent_]
$ns_ insert-loss $loss_module1 $node_(n0) $node_(n1)
$ns_ insert-loss $loss_module2 $node_(n1) $node_(n3)
$ns_ insert-loss $loss_module3 $node_(n0) $node_(n2)
$ns_ at 0.1 "$cbr0 start"
$ns_ at 1.6 "$self finish [list $rcvr0 $rcvr1 $rcvr2 $rcvr3 \
$rcvr4 $rcvr5]"
$ns_ run
}
# Testing algorithmic routing for SessionSim in a 6-node topology
Class Test/Session4 -superclass TestSuite
Test/Session4 instproc init net {
$self instvar net_ defNet_ test_
set defNet_ net6
set test_ Session4
set net_ $net
$self next
}
Test/Session4 instproc run {} {
$self instvar ns_ node_ testName_
set grp0 [Node allocaddr]
$ns_ rtproto Algorithmic
set udp0 [new Agent/UDP]
$udp0 set ttl_ 4
$ns_ attach-agent $node_(n4) $udp0
$udp0 set dst_addr_ $grp0
$udp0 set dst_port_ 0
set cbr0 [new Application/Traffic/CBR]
$cbr0 attach-agent $udp0
set sessionhelper [$ns_ create-session $node_(n4) $udp0]
set rcvr0 [new Agent/LossMonitor]
set rcvr1 [new Agent/LossMonitor]
set rcvr2 [new Agent/LossMonitor]
set rcvr3 [new Agent/LossMonitor]
set rcvr4 [new Agent/LossMonitor]
set rcvr5 [new Agent/LossMonitor]
$ns_ attach-agent $node_(n0) $rcvr0
$ns_ attach-agent $node_(n1) $rcvr1
$ns_ attach-agent $node_(n2) $rcvr2
$ns_ attach-agent $node_(n3) $rcvr3
$ns_ attach-agent $node_(n4) $rcvr4
$ns_ attach-agent $node_(n5) $rcvr5
$ns_ at 0.2 "$node_(n0) join-group $rcvr0 $grp0"
$ns_ at 0.2 "$node_(n1) join-group $rcvr1 $grp0"
$ns_ at 0.2 "$node_(n2) join-group $rcvr2 $grp0"
$ns_ at 0.2 "$node_(n3) join-group $rcvr3 $grp0"
$ns_ at 0.2 "$node_(n4) join-group $rcvr4 $grp0"
$ns_ at 0.2 "$node_(n5) join-group $rcvr5 $grp0"
set loss_module1 [new SelectErrorModel]
$loss_module1 drop-packet 2 20 1
$loss_module1 drop-target [$ns_ set nullAgent_]
set loss_module2 [new SelectErrorModel]
$loss_module2 drop-packet 2 10 1
$loss_module2 drop-target [$ns_ set nullAgent_]
set loss_module3 [new SelectErrorModel]
$loss_module3 drop-packet 2 10 1
$loss_module3 drop-target [$ns_ set nullAgent_]
$ns_ insert-loss $loss_module1 $node_(n0) $node_(n1)
$ns_ insert-loss $loss_module2 $node_(n1) $node_(n3)
$ns_ insert-loss $loss_module3 $node_(n0) $node_(n2)
$ns_ at 0.1 "$cbr0 start"
$ns_ at 1.6 "$self finish [list $rcvr0 $rcvr1 $rcvr2 $rcvr3 \
$rcvr4 $rcvr5]"
$ns_ run
}
TestSuite runTest
|
