test-suite-simple.tcl

ns-2的文件包。多多下载

    $self instvar node_
    set node_(s1) [$ns node]
    set node_(s2) [$ns node]
    set node_(r1) [$ns node]
    set node_(r2) [$ns node]
    set node_(s3) [$ns node]
    set node_(s4) [$ns node]
}

Class Topology/net2 -superclass NodeTopology/6nodes
Topology/net2 instproc init ns {
    $self next $ns

    $self instvar node_
    Queue/RED set drop_rand_ true
    $ns duplex-link $node_(s1) $node_(r1) 10Mb 2ms DropTail
    $ns duplex-link $node_(s2) $node_(r1) 10Mb 3ms DropTail
    $ns duplex-link $node_(r1) $node_(r2) 1.5Mb 20ms RED
    $ns queue-limit $node_(r1) $node_(r2) 25
    $ns queue-limit $node_(r2) $node_(r1) 25
    $ns duplex-link $node_(s3) $node_(r2) 10Mb 4ms DropTail
    $ns duplex-link $node_(s4) $node_(r2) 10Mb 5ms DropTail
    if {[$class info instprocs config] != ""} {
	$self config $ns
    }
}

Class Topology/net3 -superclass NodeTopology/6nodes
Topology/net3 instproc init ns {
    $self next $ns

    $self instvar node_
    Queue/RED set drop_rand_ true
    $ns duplex-link $node_(s1) $node_(r1) 100Mb 1ms DropTail
    $ns duplex-link $node_(s2) $node_(r1) 100Mb 30ms DropTail
    $ns duplex-link $node_(r1) $node_(r2) 10Mb 10ms RED
    $ns queue-limit $node_(r1) $node_(r2) 25
    $ns queue-limit $node_(r2) $node_(r1) 25
    $ns duplex-link $node_(s3) $node_(r2) 100Mb 1ms DropTail
    $ns duplex-link $node_(s4) $node_(r2) 100Mb 5ms DropTail
    if {[$class info instprocs config] != ""} {
	$self config $ns
    }
}

# Definition of test-suite tests

Class Test/tahoe1 -superclass TestSuite
Test/tahoe1 instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0
	set test_	tahoe
	set guide_ 	\
	"Tahoe TCP with multiple packets dropped from a window of data."
	Queue/DropTail set summarystats_ true
	$self next
}
Test/tahoe1 instproc run {} {
	global quiet
	$self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	# Set up TCP connection
	set tcp1 [$ns_ create-connection TCP $node_(s1) TCPSink $node_(k1) 0]
	$tcp1 set window_ 50
	
	# Set up FTP source
	set ftp1 [$tcp1 attach-app FTP]
	$ns_ at 0.0 "$ftp1 start"

	$self tcpDump $tcp1 1.0

	set link1 [$ns_ link $node_(r1) $node_(k1)]
	set queue1 [$link1 queue]
	$ns_ at 5.0 "$queue1 printstats"

	# Trace only the bottleneck link
	#
	# Actually, we now trace all activity at the node around the
	# bottleneck link.  This allows us to track acks, as well
	# packets taking any alternate paths around the bottleneck
	# link.
	#
	$self traceQueues $node_(r1) [$self openTrace 5.0 $testName_]
	$ns_ run
}

Class Test/tahoe1Bytes -superclass TestSuite
Test/tahoe1Bytes instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0
	set test_	tahoe1Bytes
	set guide_	"DropTail queue in bytes instead of packets."
	Queue/DropTail set queue_in_bytes_ true
	Queue/DropTail set mean_pktsize_ 1000
	Queue/DropTail set summarystats_ true
	Test/tahoe1Bytes instproc run {} [Test/tahoe1 info instbody run ]
	$self next
}

# Tahoe1 with RED
Class Test/tahoe1RED -superclass TestSuite
Test/tahoe1RED instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0a
	set test_	tahoe1RED
	set guide_	\
	"RED queue, configured for 5 packets instead of DropTail's 6 packets."
	Queue/RED set summarystats_ true
	Test/tahoe1RED instproc run {} [Test/tahoe1 info instbody run ]
	$self next
}

# Tahoe1 with RED
Class Test/tahoe1REDbytes -superclass TestSuite
Test/tahoe1REDbytes instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0a
	set test_	tahoe1REDbytes
	set guide_      "RED queue in bytes."
	Queue/RED set queue_in_bytes_ true
	Queue/RED set mean_pktsize_ 1000
	Queue/RED set summarystats_ true
	Test/tahoe1REDbytes instproc run {} [Test/tahoe1 info instbody run ]
	$self next
}

Class Test/tahoe2 -superclass TestSuite
Test/tahoe2 instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0
	set test_	tahoe2
	set guide_	"Tahoe TCP with one packet dropped."
	$self next
}
Test/tahoe2 instproc run {} {
	global quiet
	$self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	set tcp1 [$ns_ create-connection TCP $node_(s1) TCPSink $node_(k1) 0]
	$tcp1 set window_ 14
	
	set ftp1 [$tcp1 attach-app FTP]
	$ns_ at 1.0 "$ftp1 start"

	$self tcpDump $tcp1 1.0

	# Trace only the bottleneck link
	$self traceQueues $node_(r1) [$self openTrace 5.0 $testName_]
	$ns_ run
}

Class Test/tahoe3 -superclass TestSuite
Test/tahoe3 instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0
	set test_	tahoe3
	set guide_      \
	"Tahoe TCP, two packets dropped from a congestion window of 5 packets."
	$self next
}
Test/tahoe3 instproc run {} {
	global quiet
	$self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	$ns_ queue-limit $node_(r1) $node_(k1) 8   
	$ns_ queue-limit $node_(k1) $node_(r1) 8   

	set tcp1 [$ns_ create-connection TCP $node_(s1) TCPSink $node_(k1) 0]
	$tcp1 set window_ 100
	set tcp2 [$ns_ create-connection TCP $node_(s2) TCPSink $node_(k1) 1]
	$tcp2 set window_ 16

	set ftp1 [$tcp1 attach-app FTP]
	set ftp2 [$tcp2 attach-app FTP]

	$ns_ at 1.0 "$ftp1 start"
	$ns_ at 0.5 "$ftp2 start"

	$self tcpDump $tcp1 1.0

	# Trace only the bottleneck link
	$self traceQueues $node_(r1) [$self openTrace 8.0 $testName_]
	$ns_ run
}

# Tahoe3 with RED.
Class Test/tahoe3RED -superclass TestSuite
Test/tahoe3RED instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0a
	set test_	tahoe3RED
	set guide_      \
	"Tahoe TCP, two packets dropped, RED queue configured for 5 packets."
	Test/tahoe3RED instproc run {} [Test/tahoe3 info instbody run ]
	$self next
}

Class Test/tahoe4 -superclass TestSuite
Test/tahoe4 instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0
	set test_	tahoe4
	set guide_	\
	"Tahoe TCP, two connections with different round-trip times."
	$self next
}
Test/tahoe4 instproc run {} {
	global quiet
	$self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	$ns_ delay $node_(s2) $node_(r1) 200ms
	$ns_ delay $node_(r1) $node_(s2) 200ms
	$ns_ queue-limit $node_(r1) $node_(k1) 11
	$ns_ queue-limit $node_(k1) $node_(r1) 11  

	set tcp1 [$ns_ create-connection TCP $node_(s1) TCPSink $node_(k1) 0]
	$tcp1 set window_ 30
	set tcp2 [$ns_ create-connection TCP $node_(s2) TCPSink $node_(k1) 1]
	$tcp2 set window_ 30

	set ftp1 [$tcp1 attach-app FTP]
	set ftp2 [$tcp2 attach-app FTP]

	$ns_ at 0.0 "$ftp1 start"
	$ns_ at 0.0 "$ftp2 start"

	$self tcpDump $tcp1 5.0

	# Trace only the bottleneck link
	$self traceQueues $node_(r1) [$self openTrace 25.0 $testName_]
	$ns_ run
}

Class Test/no_bug -superclass TestSuite
Test/no_bug instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net1
	set test_	no_bug
	set guide_      "Tahoe TCP with TCP/bugFix_ set to true."
	$self next
}
Test/no_bug instproc run {} {
	global quiet
	$self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	$ns_ delay $node_(s1) $node_(r1) 3ms
	$ns_ delay $node_(r1) $node_(s1) 3ms

	set tcp1 [$ns_ create-connection TCP $node_(s1) TCPSink $node_(k1) 0]
	$tcp1 set window_ 50
	set tcp2 [$ns_ create-connection TCP $node_(s2) TCPSink $node_(k1) 1]
	$tcp2 set window_ 50

	set ftp1 [$tcp1 attach-app FTP]
	set ftp2 [$tcp2 attach-app FTP]

	$ns_ at 1.0 "$ftp1 start"
	$ns_ at 1.75 "$ftp2 produce 99"

	$self tcpDump $tcp1 1.0

	# Trace only the bottleneck link
	$self traceQueues $node_(r1) [$self openTrace 6.0 $testName_]
	$ns_ run
}

Class Test/bug -superclass TestSuite
Test/bug instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net1
	set test_	bug
	set guide_      "Tahoe TCP with TCP/bugFix_ set to false."
	$self next
}
Test/bug instproc run {} {
	global quiet
	$self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	$ns_ delay $node_(s1) $node_(r1) 3ms
	$ns_ delay $node_(r1) $node_(s1) 3ms

	set tcp1 [$ns_ create-connection TCP $node_(s1) TCPSink $node_(k1) 0]
	$tcp1 set window_ 50
	$tcp1 set bugFix_ false
	set tcp2 [$ns_ create-connection TCP $node_(s2) TCPSink $node_(k1) 1]
	$tcp2 set window_ 50
	$tcp2 set bugFix_ false

	set ftp1 [$tcp1 attach-app FTP]
	set ftp2 [$tcp2 attach-app FTP]

	$ns_ at 1.0 "$ftp1 start"
	$ns_ at 1.75 "$ftp2 produce 100"

	$self tcpDump $tcp1 1.0

	# Trace only the bottleneck link
	$self traceQueues $node_(r1) [$self openTrace 6.0 $testName_]
	$ns_ run
}

Class Test/reno1 -superclass TestSuite
Test/reno1 instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0
	set test_	reno1
	set guide_	\
	"Reno TCP, one packet dropped, Fast Recovery and Fast Retransmit"
	$self next
}
Test/reno1 instproc run {} {
	global quiet
	$self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	set tcp1 [$ns_ create-connection TCP/Reno $node_(s1) TCPSink $node_(k1) 0]
	$tcp1 set window_ 14

	set ftp1 [$tcp1 attach-app FTP]
	$ns_ at 1.0 "$ftp1 start"

	$self tcpDump $tcp1 1.0

	# trace only the bottleneck link
	$self traceQueues $node_(r1) [$self openTrace 5.0 $testName_]
	$ns_ run
}

Class Test/reno -superclass TestSuite
Test/reno instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0
	set test_	reno
	set guide_      \
	"Reno TCP, limited by maximum congestion window maxcwnd_."
	$self next
}
Test/reno instproc run {} {
	global quiet
	$self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	set tcp1 [$ns_ create-connection TCP/Reno $node_(s1) TCPSink $node_(k1) 0]
	$tcp1 set window_ 28
	$tcp1 set maxcwnd_ 14

	set ftp1 [$tcp1 attach-app FTP]
	$ns_ at 1.0 "$ftp1 start"

	$self tcpDump $tcp1 1.0

	# trace only the bottleneck link
	$self traceQueues $node_(r1) [$self openTrace 5.0 $testName_]
	$ns_ run
}

Class Test/renoA -superclass TestSuite
Test/renoA instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0
	set test_	renoA
	set guide_ 	\
	"Reno TCP, one packet dropped, Fast Recovery and Fast Retransmit"
	$self next
}
Test/renoA instproc run {} {
	global quiet
	$self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	$ns_ queue-limit $node_(r1) $node_(k1) 8

	set tcp1 [$ns_ create-connection TCP/Reno $node_(s1) TCPSink $node_(k1) 0]
	$tcp1 set window_ 28
	set tcp2 [$ns_ create-connection TCP/Reno $node_(s1) TCPSink $node_(k1) 1]
	$tcp2 set window_ 4
	set tcp3 [$ns_ create-connection TCP/Reno $node_(s1) TCPSink $node_(k1) 2]
	$tcp3 set window_ 4

	set ftp1 [$tcp1 attach-app FTP]
	$ns_ at 1.0 "$ftp1 start"
	set ftp2 [$tcp2 attach-app FTP]
	$ns_ at 1.2 "$ftp2 produce 6"
	set ftp3 [$tcp3 attach-app FTP]
	$ns_ at 1.2 "$ftp3 produce 6"

	$self tcpDump $tcp1 1.0
	$self tcpDump $tcp2 1.0
	$self tcpDump $tcp3 1.0

	# Trace only the bottleneck link
	$self traceQueues $node_(r1) [$self openTrace 5.0 $testName_]
	$ns_ run
}

Class Test/reno2 -superclass TestSuite
Test/reno2 instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0
	set test_	reno2
	set guide_ 	\
	"Reno TCP, multiple packets dropped, Retransmit Timeout."
	$self next
}
Test/reno2 instproc run {} {
	global quiet
	$self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	$ns_ queue-limit $node_(r1) $node_(k1) 9

	set tcp1 [$ns_ create-connection TCP/Reno $node_(s1) TCPSink $node_(k1) 0]
	$tcp1 set window_ 50
	set tcp2 [$ns_ create-connection TCP/Reno $node_(s2) TCPSink $node_(k1) 1]
	$tcp2 set window_ 20

	set ftp1 [$tcp1 attach-app FTP]
	set ftp2 [$tcp2 attach-app FTP]

	$ns_ at 1.0 "$ftp1 start"
	$ns_ at 1.0 "$ftp2 start"

	$self tcpDump $tcp1 1.0

	# Trace only the bottleneck link
	$self traceQueues $node_(r1) [$self openTrace 10.0 $testName_]
	$ns_ run
}

Class Test/reno3 -superclass TestSuite
Test/reno3 instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0
	set test_	reno3