test-suite-tcp.tcl

跑leach需要的

Class Test/timersA2 -superclass TestSuite
Test/timersA2 instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net4
	set test_	timersA2_(timestamps,_fine-grained_clock)
	set guide_	"Agent/TCP, tcpTick_ set to 0.001"
        Agent/TCP set timestamps_ true
	Agent/TCP set tcpTick_ 0.001
	Agent/TCP set timerfix_ false
	# The default is being changed to true.
        Test/timersA2 instproc run {} [Test/timersA info instbody run ]
	$self next
}

# Update the smoothed round-trip with weight 1/16 instead of 1/8.
#
Class Test/timersA3 -superclass TestSuite
Test/timersA3 instproc init topo {
	$self instvar net_ defNet_ test_ guide_
	set net_	$topo
	set defNet_	net4
	set test_	timersA3_(weight_1/32_instead_of_1/8)
	set guide_	"Agent/TCP, T_SRTT_BITS set to 5 instead of 3"
	Agent/TCP set timestamps_ true
	Agent/TCP set tcpTick_ 0.001
	Agent/TCP set T_SRTT_BITS 5
	Agent/TCP set T_RTTVAR_BITS 4
	Agent/TCP set timerfix_ false
	# The default is being changed to true.
        Test/timersA3 instproc run {} [Test/timersA info instbody run ]
	$self next
}

Class Test/timers1 -superclass TestSuite
Test/timers1 instproc init topo {
        $self instvar net_ defNet_ test_ guide_
        set net_        $topo  
        set defNet_     net2
        set test_       timers1_(tcpTick_=default,0.1)
	set guide_	"tcpTick_ set to default of 0.1"
        $self next
}
Test/timers1 instproc run {} {
	global quiet
        $self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	if {$quiet == "false"} {puts "tcpTICK: [Agent/TCP set tcpTick_]"}
        $ns_ queue-limit $node_(r1) $node_(r2) 29

        set tcp1 [$ns_ create-connection TCP/Reno $node_(s1) TCPSink/DelAck $node_(r2) 0]
#        set tcp1 [$ns_ create-connection TCP $node_(s1) TCPSink/DelAck $node_(r2) 1]
        $tcp1 set window_ 40
        set ftp1 [$tcp1 attach-app FTP]
        $ns_ at 0.0 "$ftp1 produce 180"
	$ns_ at 1.0 "$self printtimersAll $tcp1 1.0 1.0" 
	$self traceQueues $node_(r1) [$self openTrace 4.0 $testName_]
        $ns_ run
}

Class Test/timers2 -superclass TestSuite
Test/timers2 instproc init topo {
        $self instvar net_ defNet_ test_ guide_
        set net_        $topo  
        set defNet_     net2
        set test_       timers2_(tcpTick_=0.5)
	set guide_	"tcpTick_ set to 0.5"
        $self next
}

Test/timers2 instproc run {} {
	global quiet
        $self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	set tick 0.5
	if {$quiet == "false"} {puts "tcpTICK: $tick"}
	Agent/TCP set tcpTick_ $tick 
        $ns_ queue-limit $node_(r1) $node_(r2) 29

        set tcp1 [$ns_ create-connection TCP/Reno $node_(s1) TCPSink/DelAck $node_(r2) 0]
        $tcp1 set window_ 40
        set ftp1 [$tcp1 attach-app FTP]
        $ns_ at 0.0 "$ftp1 produce 180"
	$ns_ at 1.0 "$self printtimersAll $tcp1 1.0 1.0" 
	$self traceQueues $node_(r1) [$self openTrace 4.0 $testName_]
        $ns_ run
}

Class Test/timers3 -superclass TestSuite
Test/timers3 instproc init topo {
        $self instvar net_ defNet_ test_ guide_
        set net_        $topo  
        set defNet_     net2
        set test_       timers3_(tcpTick_=0.001)
	set guide_	"tcpTick_ set to 0.001"
        $self next
}

Test/timers3 instproc run {} {
	global quiet
        $self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	set tick 0.001
	if {$quiet == "false"} {puts "tcpTICK: $tick"}
	Agent/TCP set tcpTick_ $tick 
        $ns_ queue-limit $node_(r1) $node_(r2) 29

        set tcp1 [$ns_ create-connection TCP/Reno $node_(s1) TCPSink/DelAck $node_(r2) 0]
        $tcp1 set window_ 40
        set ftp1 [$tcp1 attach-app FTP]
        $ns_ at 0.0 "$ftp1 produce 180"
	$ns_ at 1.0 "$self printtimersAll $tcp1 1.0 1.0" 
	$self traceQueues $node_(r1) [$self openTrace 4.0 $testName_]
        $ns_ run
}

Class Test/timers4 -superclass TestSuite
Test/timers4 instproc init topo {
        $self instvar net_ defNet_ test_ guide_
        set net_        $topo  
        set defNet_     net2
        set test_       timers4_(tcpTick_=0.001)
	set guide_	\
	"With timers5, shows that estimated RTT updated only once per RTT."
        $self next
}

Test/timers4 instproc run {} {
	global quiet
        $self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	set tick 0.001
	if {$quiet == "false"} {puts "tcpTICK: $tick"}
	Agent/TCP set tcpTick_ $tick 
        $ns_ queue-limit $node_(r1) $node_(r2) 29

        set tcp1 [$ns_ create-connection TCP/Reno $node_(s1) TCPSink/DelAck $node_(r2) 0]
        $tcp1 set window_ 10
        set ftp1 [$tcp1 attach-app FTP]
        $ns_ at 0.0 "$ftp1 start"
	$ns_ at 0.1 "$self printtimersAll $tcp1 0.1 0.1" 
	$self traceQueues $node_(r1) [$self openTrace 2.0 $testName_]
        $ns_ run
}

Class Test/timers5 -superclass TestSuite
Test/timers5 instproc init topo {
        $self instvar net_ defNet_ test_ guide_
        set net_        $topo  
        set defNet_     net2
        set test_       timers5_(tcpTick_=0.001)
	set guide_	\
	"With timers4, shows that estimated RTT updated only once per RTT."
        $self next
}

Test/timers5 instproc run {} {
	global quiet
        $self instvar ns_ node_ testName_ guide_
	if {$quiet == "false"} {puts $guide_}

	set tick 0.001
	if {$quiet == "false"} {puts "tcpTICK: $tick"}
	Agent/TCP set tcpTick_ $tick 
        $ns_ queue-limit $node_(r1) $node_(r2) 29

        set tcp1 [$ns_ create-connection TCP/Reno $node_(s1) TCPSink/DelAck $node_(r2) 0]
        $tcp1 set window_ 2
        set ftp1 [$tcp1 attach-app FTP]
        $ns_ at 0.0 "$ftp1 start"
	$ns_ at 0.1 "$self printtimersAll $tcp1 0.1 0.1" 
	$self traceQueues $node_(r1) [$self openTrace 2.0 $testName_]
        $ns_ run
}

TestSuite instproc printtcp { label tcp time } {
	puts ""
	puts "tcp: $label time: $time" 
	puts "total_data_packets_sent: [$tcp set ndatapack_] data_bytes_sent: [$tcp set ndatabytes_]" 
	puts "packets_resent: [$tcp set nrexmitpack_] bytes_resent: [$tcp set nrexmitbytes_]" 
	puts "ack_packets_received: [$tcp set nackpack_]"
	puts "retransmit_timeouts: [$tcp set nrexmit_]" 

}

Class Test/stats1 -superclass TestSuite
Test/stats1 instproc init topo {
        $self instvar net_ defNet_ test_ guide_
        set net_        $topo
        set defNet_     net0
        set test_       stats1
	set guide_	"TCP statistics on the number of retransmit timeouts."
        $self next
} 

Test/stats1 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) 10
        $ns_ queue-limit $node_(k1) $node_(r1) 10

        set stoptime 10.1

        set tcp1 [$ns_ create-connection TCP/Reno $node_(s1) TCPSink $node_(k1) 0]
        $tcp1 set window_ 30
        set tcp2 [$ns_ create-connection TCP $node_(s2) TCPSink $node_(k1) 1]
        $tcp2 set window_ 3
        set ftp1 [$tcp1 attach-app FTP]
        set ftp2 [$tcp2 attach-app FTP]
 
        $ns_ at 1.0 "$ftp1 start" 
        $ns_ at 1.0 "$ftp2 start"

        $self tcpDumpAll $tcp1 10.0 tcp1
 	$self tcpDumpAll $tcp2 10.0 tcp2

	$ns_ at 10.0 "$self printtcp 1 $tcp1 10.0" 
	$ns_ at 10.0 "$self printtcp 2 $tcp2 10.0" 
	$ns_ at 10.0 "puts \"\""
 
        # trace only the bottleneck link 
        $self traceQueues $node_(r1) [$self openTrace $stoptime $testName_]
        $ns_ run
}

TestSuite instproc set_lossylink {} {
    	$self instvar lossylink_ ns_ node_ guide_
    	set lossylink_ [$ns_ link $node_(r1) $node_(k1)]
   	set em [new ErrorModule Fid]
    	set errmodel [new ErrorModel/Periodic]
    	$errmodel unit pkt
    	$lossylink_ errormodule $em
}

TestSuite instproc emod {} {
	$self instvar lossylink_
        set errmodule [$lossylink_ errormodule]
        return $errmodule
}

TestSuite instproc drop_pkts pkts {
	$self instvar ns_
	set emod [$self emod]
	set errmodel1 [new ErrorModel/List]
	$errmodel1 droplist $pkts
	$emod insert $errmodel1
	$emod bind $errmodel1 1
} 

TestSuite instproc run1 { tcp0 {stoptime 30.1}} {
        $self instvar ns_ node_ testName_ guide_

	set count 100 
	set count1 3

    	set ftp0 [$tcp0 attach-app FTP]
    	$ns_ at 0.0  "$ftp0 produce $count" 
	$ns_ at 2.4  "$ftp0 producemore $count"  
	$ns_ at 2.5  "$ftp0 producemore $count"
	$self traceQueues $node_(r1) [$self openTrace $stoptime $testName_]
	$ns_ run
}

Class Test/quiescent_100ms -superclass TestSuite
Test/quiescent_100ms instproc init topo {
        $self instvar net_ defNet_ test_ guide_
        set net_        $topo
        set defNet_     net6
        set test_       quiescent_100ms
	set guide_	"Tahoe TCP after a quiescent period."
	Agent/TCP set QOption_ 0
        $self next
} 
Test/quiescent_100ms instproc run {} {
	global quiet
        $self instvar ns_ node_ guide_ 
	if {$quiet == "false"} {puts $guide_}
	Agent/TCP set packetSize_ 100 
	Agent/TCP set window_ 25
	set tcp0 [$ns_ create-connection TCP $node_(s1) TCPSink $node_(k1) 0]
	$self run1 $tcp0
}

Class Test/quiescentB -superclass TestSuite
Test/quiescentB instproc init topo {
        $self instvar net_ defNet_ test_ guide_
        set net_        $topo
        set defNet_     net6
        set test_       quiescentB
	set guide_	\
	"Tahoe TCP entering a quiescent period with a smaller cwnd."
	Agent/TCP set QOption_ 0
        $self next
} 
Test/quiescentB instproc run {} {
	global quiet
        $self instvar ns_ node_ guide_
	if {$quiet == "false"} {puts $guide_}
	$self set_lossylink
	Agent/TCP set packetSize_ 100 
	Agent/TCP set window_ 25
	set tcp0 [$ns_ create-connection TCP $node_(s1) TCPSink $node_(k1) 1]
	$self drop_pkts {2}