test-suite-simple.tcl

ns-2的文件包。多多下载

	set guide_	\
	"Reno TCP, two packets dropped from a congestion window of 5 packets."
	$self next
}
Test/reno3 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/Reno $node_(s1) TCPSink $node_(k1) 0]
	$tcp1 set window_ 100
	set tcp2 [$ns_ create-connection TCP/Reno $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
}

Class Test/reno4 -superclass TestSuite
Test/reno4 instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net2
	set test_	reno4
	set guide_	\
	"Reno TCP, two packets dropped, no Retransmit Timeout"
	$self next
}
Test/reno4 instproc run {} {
	global quiet
	$self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	$ns_ queue-limit $node_(r1) $node_(r2) 29

	set tcp1 [$ns_ create-connection TCP/Reno $node_(s1) TCPSink/DelAck $node_(r2) 0]
	$tcp1 set window_ 80
	$tcp1 set maxcwnd_ 40

	set ftp1 [$tcp1 attach-app FTP]
	$ns_ at 0.0 "$ftp1 start"

	$self tcpDump $tcp1 1.0

	# Trace only the bottleneck link
	$self traceQueues $node_(s1) [$self openTrace 2.0 $testName_]
	$ns_ run
}

Class Test/reno4a -superclass TestSuite
Test/reno4a instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net2
	set test_	reno4a
	set guide_	\
	"Reno TCP, two packets dropped, Retransmit Timeout"
	$self next
}
Test/reno4a instproc run {} {
	global quiet
	$self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	$ns_ queue-limit $node_(r1) $node_(r2) 29

	set tcp1 [$ns_ create-connection TCP/Reno $node_(s1) TCPSink/DelAck $node_(r2) 0]
	$tcp1 set window_ 40
	$tcp1 set maxcwnd_ 40

	set ftp1 [$tcp1 attach-app FTP]
	$ns_ at 0.0 "$ftp1 start"

	$self tcpDump $tcp1 1.0

	# Trace only the bottleneck link
	$self traceQueues $node_(s1) [$self openTrace 4.0 $testName_]
	$ns_ run
}

Class Test/reno5 -superclass TestSuite
Test/reno5 instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0
	set test_	reno5
	set guide_	\
	"Reno TCP, TCP/bugFix_ set to false."
	Agent/TCP set bugFix_ false
	$self next
}
Test/reno5 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"
	$ns_ at 1.1 "$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/reno5_nobug -superclass TestSuite
Test/reno5_nobug instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0
	set test_	reno5_nobug
	set guide_	\
	"Reno TCP, TCP/bugFix_ set to true."
	Agent/TCP set bugFix_ true
	Test/reno5_nobug instproc run {} [Test/reno5 info instbody run ]

	$self next
}

Class Test/telnet -superclass TestSuite
Test/telnet instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0
	set test_	telnet
	set guide_	\
	"Telnet connections with two different packet generation processes."
	Agent/TCP set timerfix_ false
	# The default is being changed to true.
	$self next
}
Test/telnet 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/Reno $node_(s1) TCPSink $node_(k1) 0]
	set tcp2 [$ns_ create-connection TCP/Reno $node_(s2) TCPSink $node_(k1) 1]
	set tcp3 [$ns_ create-connection TCP/Reno $node_(s2) TCPSink $node_(k1) 2]

	set telnet1 [$tcp1 attach-app Telnet]; $telnet1 set interval_ 1
	set telnet2 [$tcp2 attach-app Telnet]; $telnet2 set interval_ 0
	# Interval 0 designates the tcplib telnet interarrival distribution
	set telnet3 [$tcp3 attach-app Telnet]; $telnet3 set interval_ 0

	$ns_ at 0.0 "$telnet1 start"
	$ns_ at 0.0 "$telnet2 start"
	$ns_ at 0.0 "$telnet3 start"

	$self tcpDump $tcp1 5.0

	# Trace only the bottleneck link
	$self traceQueues $node_(r1) [$self openTrace 50.0 $testName_]

	# use a different seed each time
	#puts seed=[$ns_ random 0]

	$ns_ run
}

Class Test/delayed -superclass TestSuite
Test/delayed instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0
	set test_	delayed
	set guide_	\
	"TCP receiver with delayed acknowledgements."
	$self next
}
Test/delayed instproc run {} {
	global quiet
	$self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	set tcp1 [$ns_ create-connection TCP $node_(s1) TCPSink/DelAck $node_(k1) 0]
	$tcp1 set window_ 50

	# lookup up the sink and set it's delay interval
	[$node_(k1) agent [$tcp1 dst-port]] set interval 100ms

	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 4.0 $testName_]
	$ns_ run
}

Class Test/phase -superclass TestSuite
Test/phase instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0
	set test_	phase
	set guide_	"Phase effects: connection 0 wins."
	$self next
}
Test/phase instproc run {} {
	global quiet
	$self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	$ns_ delay $node_(s2) $node_(r1) 3ms
	$ns_ delay $node_(r1) $node_(s2) 3ms
	$ns_ queue-limit $node_(r1) $node_(k1) 16
	$ns_ queue-limit $node_(k1) $node_(r1) 100

	set tcp1 [$ns_ create-connection TCP $node_(s1) TCPSink $node_(k1) 0]
	$tcp1 set window_ 32 
	set tcp2 [$ns_ create-connection TCP $node_(s2) TCPSink $node_(k1) 1]
	$tcp2 set window_ 32 

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

	$ns_ at 5.0 "$ftp1 start"
	$ns_ at 1.0 "$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/phase1 -superclass TestSuite
Test/phase1 instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0
	set test_	phase1
	set guide_	"Phase effects: connection 1 wins."
	$self next
}
Test/phase1 instproc run {} {
	global quiet
	$self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	$ns_ delay $node_(s2) $node_(r1) 9.5ms
	$ns_ delay $node_(r1) $node_(s2) 9.5ms
	$ns_ queue-limit $node_(r1) $node_(k1) 16
	$ns_ queue-limit $node_(k1) $node_(r1) 100

	set tcp1 [$ns_ create-connection TCP $node_(s1) TCPSink $node_(k1) 0]
	$tcp1 set window_ 32 
	set tcp2 [$ns_ create-connection TCP $node_(s2) TCPSink $node_(k1) 1]
	$tcp2 set window_ 32 

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

	$ns_ at 5.0 "$ftp1 start"
	$ns_ at 1.0 "$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/phase2 -superclass TestSuite
Test/phase2 instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0
	set test_	phase2
	set guide_	\
	"Phase effects: TCP/overhead_ is used, and neither connection loses."
	$self next
}
Test/phase2 instproc run {} {
	global quiet
	$self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	$ns_ delay $node_(s2) $node_(r1) 3ms
	$ns_ delay $node_(r1) $node_(s2) 3ms
	$ns_ queue-limit $node_(r1) $node_(k1) 16
	$ns_ queue-limit $node_(k1) $node_(r1) 100

	set tcp1 [$ns_ create-connection TCP $node_(s1) TCPSink $node_(k1) 0]
	$tcp1 set window_ 32 
	$tcp1 set overhead_ 0.01
	set tcp2 [$ns_ create-connection TCP $node_(s2) TCPSink $node_(k1) 1]
	$tcp2 set window_ 32 
	# $tcp2 set overhead_ 0.01
	# The random overhead_ was increased slightly to illustrate fairness 
	#   for this scenario.
	$tcp2 set overhead_ 0.015

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

	$ns_ at 5.0 "$ftp1 start"
	$ns_ at 1.0 "$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/timers -superclass TestSuite
Test/timers instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0
	set test_	timers
	set guide_	"TCP retransmit timers."
	Agent/TCP set timerfix_ false
	# The default is being changed to true.
	$self next
}

Test/timers instproc run {} {
	global quiet
	$self instvar ns_ node_ testName_ guide_


	$ns_ queue-limit $node_(r1) $node_(k1) 2
	$ns_ queue-limit $node_(k1) $node_(r1) 100

	set tcp1 [$ns_ create-connection TCP $node_(s1) TCPSink/DelAck $node_(k1) 0]
	$tcp1 set window_ 4
	# look up the sink and set its delay interval
	[$node_(k1) agent [$tcp1 dst-port]] set interval_ 100ms
	set tcp2 [$ns_ create-connection TCP $node_(s2) TCPSink/DelAck $node_(k1) 1]
	$tcp2 set window_ 4
	# look up the sink and set its delay interval
	[$node_(k1) agent [$tcp2 dst-port]] set interval_ 100ms

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

	$ns_ at 1.0 "$ftp1 start"
	$ns_ at 1.3225 "$ftp2 start"

	$self tcpDump $tcp1 5.0

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

# Many small TCP flows.
Class Test/manyflows -superclass TestSuite
Test/manyflows instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net0
	set test_	manyflows
	set guide_	"Using FTP commands to create many small flows."
	$self next
}
Test/manyflows instproc run {} {
	global quiet
	$self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	# Set up TCP connections

	set rng_ [new RNG]
	## $rng_ seed [ns random 0]
	set stoptime 5
	set randomflows 10
	for {set i 0} {$i < $randomflows} {incr i} {
	    set tcp [$ns_ create-connection TCP $node_(s1) TCPSink $node_(k1) 1]
	    set ftp [[set tcp] attach-app FTP]    
	    set numpkts [$rng_ uniform 0 10]
	    set starttime [$rng_ uniform 0 $stoptime]
	    $ns_ at $starttime "[set ftp] produce $numpkts" 
	    $ns_ at $stoptime "[set ftp] stop"  
	}   

	# 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 $stoptime $testName_]
	$ns_ run
}

TestSuite instproc printpkts { label tcp } {
        global tcpTick_ 
	puts "tcp $label highest_seqment_acked [$tcp set ack_]"
	puts "tcp $label data_bytes_sent [$tcp set ndatabytes_]"
        set numRtts [$tcp set rtt_]
	set tick $tcpTick_
        set rtt [expr $numRtts * $tcpTick_]
	puts "tcp $label most_recent_rtt [format "%5.3f" $rtt]"  
}
TestSuite instproc printpktsTFRC { label tfrc } {
        global tcpTick_ 
	puts "tfrc $label data_pkts_sent [$tfrc set ndatapack_]"
}
TestSuite instproc printdrops { fid fmon } {
	set fcl [$fmon classifier]; # flow classifier
	#
	# look up the flow using the classifier.  Because we are
	# using a Fid classifier, the src/dst fields are not compared,
	# and can thus be just zero, as illustrated here.  The "auto"
	# indicates we don't already know which bucket in the classifier's
	# hash table to find the flow we're looking for.
	#
	set flow [$fcl lookup auto 0 0 $fid]
	puts "fid: $fid per-link total_drops [$flow set pdrops_]"
	puts "fid: $fid per-link total_marks [$flow set pmarks_]"
	puts "fid: $fid per-link total_packets [$flow set pdepartures_]"
	puts "fid: $fid per-link total_bytes [$flow set bdepartures_]"
	#
	# note there is much more date available in $flow and $fmon
	# that isn't being printed here.
	#
}
TestSuite instproc printstop { stoptime } {
	puts "stop-time $stoptime"
}
TestSuite instproc printall { fmon } {
 	puts "aggregate per-link total_drops [$fmon set pdrops_]"
	puts "aggregate per-link total_marks [$fmon set pmarks_]"
	puts "aggregate per-link total_packets [$fmon set pdepartures_]"