test-suite-full-fixes.tcl

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	# set up TCP-level connections
	$sink listen
	set ftp1 [$src attach-app FTP]
	$ns_ at 0.7 "$ftp1 start"

	# set up special params for this test
	$src set window_ 100
	$src set packetSize_ 576
	$src set ecn_ true
	$sink set ecn_ true

	$self traceQueues $node_(r1) [$self openTrace $stopt $testName_]
	$ns_ run
}


#:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::
#                         TCP SACK Tests
#:::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::::

#*************************************************************************
# Tests to validate bug fixes to Full-TCP SACK in tcp-full.cc
#
#  sack-send-past-fin -- as long as cwnd allows, sender sends packets even
#                        when there is no new data
#  sack-ecn-drop-mark -- SACK behavior when seeing 3 DUPACKS after ECN
#  sack-burst -- SACK sends large number of old packets
#  sack-burst-2 -- SACK sends large number of old packets
#  sack-illegal-sack-block -- dropped FIN
#  sack-dropwin -- drop a full window of packets
#*************************************************************************

#
# sack-send-past-fin
#
Class Test/sack-send-past-fin -superclass TestSuite
Test/sack-send-past-fin instproc init topo {
	$self instvar net_ defNet_ test_
	set net_ $topo
	set defNet_ net0-lossy
	set test_ sack-send-past-fin
	$self next
}
Test/sack-send-past-fin instproc run {} {
	$self instvar ns_ node_ testName_ topo_

	set stopt 3.0	

	$topo_ instvar lossylink_
	set errmodule [$lossylink_ errormodule]
	set errmodel [$errmodule errormodels]
	if { [llength $errmodel] > 1 } {
		puts "sack-send-past-fin: confused by >1 err models..abort"
		exit 1
	}

	$errmodel set offset_ 11.0
	$errmodel set burstlen_ 1

	# set up connection (do not use "create-connection" method because
	# we need a handle on the sink object)
	set src [new Agent/TCP/FullTcp/Sack]
	set sink [new Agent/TCP/FullTcp/Sack]
	$ns_ attach-agent $node_(s1) $src
	$ns_ attach-agent $node_(k1) $sink
	$src set fid_ 0
	$sink set fid_ 0
	$ns_ connect $src $sink

	# set up TCP-level connections
	$sink listen
	set ftp1 [$src attach-app FTP]
	$ns_ at 0.7 "$ftp1 start"
	$ns_ at 1.5 "$ftp1 stop"

	# set up special params for this test
	$src set window_ 20
	$src set packetSize_ 576

	$self traceQueues $node_(r1) [$self openTrace $stopt $testName_]
	$ns_ run
}

#
# sack-ecn-drop-mark
#
# This test is to illustrate the bug in the Full-TCP SACK+ECN 
# implementation that occurs when a packet loss is detected
# in the same window of ACKs as an ECN-Echo bit.

Class Test/sack-ecn-drop-mark -superclass TestSuite
Test/sack-ecn-drop-mark instproc init topo {
	$self instvar net_ defNet_ test_
	set net_ $topo
	set defNet_ net0-lossy
	set test_ sack-ecn-drop-mark
	$self next
}
Test/sack-ecn-drop-mark instproc run {} {
	$self instvar ns_ node_ testName_ topo_

	set stopt 2.1

	$topo_ instvar lossylink_
	set errmodule [$lossylink_ errormodule]
	set errmodel [$errmodule errormodels]
	if { [llength $errmodel] > 1 } {
		puts "sack-ecn: confused by >1 err models..abort"
		exit 1
	}

	$errmodel set offset_ 20.0
	$errmodel set period_ 1000.0
	$errmodel set markecn_ true; # mark ecn's, don't drop

	# set up connection (do not use "create-connection" method because
	# we need a handle on the sink object)
	set src [new Agent/TCP/FullTcp/Sack]
	set sink [new Agent/TCP/FullTcp/Sack]
	$ns_ attach-agent $node_(s1) $src
	$ns_ attach-agent $node_(k1) $sink
	$src set fid_ 0
	$sink set fid_ 0
	$ns_ connect $src $sink

	# set up TCP-level connections
	$sink listen
	$ns_ at 0.7 "$src advance 40"

	# set up special params for this test
	$src set window_ 70
	$src set packetSize_ 576

	$src set ecn_ true
	$sink set ecn_ true

	$self traceQueues $node_(r1) [$self openTrace $stopt $testName_]
	$ns_ run
}

#
# sack-burst
#
Class Test/sack-burst -superclass TestSuite
Test/sack-burst instproc init topo {
	$self instvar net_ defNet_ test_
	set net_ $topo
	set defNet_ net1-lossy
	set test_ sack-burst
	$self next
}
Test/sack-burst instproc run {} {
	$self instvar ns_ node_ testName_ topo_

	set stopt 23

	$topo_ instvar lossylink_
	set errmodule [$lossylink_ errormodule]
	set errmodel [$errmodule errormodels]
	if { [llength $errmodel] > 1 } {
		puts "sack-burst: confused by >1 err models..abort"
		exit 1
	}

	# set up connection (do not use "create-connection" method because
	# we need a handle on the sink object)
	set src [new Agent/TCP/FullTcp/Sack]
	set sink [new Agent/TCP/FullTcp/Sack]
	$ns_ attach-agent $node_(s1) $src
	$ns_ attach-agent $node_(k1) $sink
	$src set fid_ 0
	$sink set fid_ 0

	# set up TCP-level connections

	# flow 1 -- one drop early
	$ns_ connect $src $sink
	$sink listen
	$ns_ at 0.0 "$errmodel set offset_ 5"
	$ns_ at 0.0 "$errmodel set burstlen_ 1"
	$ns_ at 0.0 "$errmodel set period_ 10000"
	$ns_ at 0.7 "$src advanceby 10"
	$ns_ at 2.0 "$src close"

	# flow 2 -- no drops, send more than flow 1, last pckt 
	# smaller than full-size
	$ns_ at 2.5 "$ns_ connect $src $sink"
	$ns_ at 2.6 "$sink listen"
	$ns_ at 3.0 "$src advance-bytes 1702"
	$ns_ at 7.0 "$src close"

	# flow 3 -- one drop late, TIMEOUT
	$ns_ at 19.5 "$errmodel set burstlen_ 1"
	$ns_ at 19.5 "$errmodel set period_ 52.0"
	$ns_ at 20.0 "$ns_ connect $src $sink"
	$ns_ at 20.1 "$sink listen"
	$ns_ at 20.3 "$src advanceby 48"
	$ns_ at 21.372 "$errmodel set period_ 2.0"
	$ns_ at 21.380 "$errmodel set burstlen_ 11"
	$ns_ at 21.381 "$errmodel set period_ 1000.0"
	$ns_ at 30.0 "$src close"

	# set up special params for this test
	$src set window_ 20
	$src set packetSize_ 576

	$self traceQueues $node_(r1) [$self openTrace $stopt $testName_]
	$ns_ run
}


#
# sack-burst-2
#
Class Test/sack-burst-2 -superclass TestSuite
Test/sack-burst-2 instproc init topo {
	$self instvar net_ defNet_ test_
	set net_ $topo
	set defNet_ net1-lossy
	set test_ sack-burst-2
	$self next
}
Test/sack-burst-2 instproc run {} {
	$self instvar ns_ node_ testName_ topo_

	set stopt 3.5

	$topo_ instvar lossylink_
	set errmodule [$lossylink_ errormodule]
	set errmodel [$errmodule errormodels]
	if { [llength $errmodel] > 1 } {
		puts "sack-burst-2: confused by >1 err models..abort"
		exit 1
	}

	# set up connection (do not use "create-connection" method because
	# we need a handle on the sink object)
	set src [new Agent/TCP/FullTcp/Sack]
	set sink [new Agent/TCP/FullTcp/Sack]
	$ns_ attach-agent $node_(s1) $src
	$ns_ attach-agent $node_(k1) $sink
	$src set fid_ 0
	$sink set fid_ 0

	# set up TCP-level connection

	# one drop early, SACK recovery
	$ns_ connect $src $sink
	$sink listen
	$ns_ at 0.0 "$errmodel set offset_ 5"
	$ns_ at 0.0 "$errmodel set burstlen_ 1"
	$ns_ at 0.0 "$errmodel set period_ 10000"
	$ns_ at 0.7 "$src advanceby 40"

        # cause timeout
	$ns_ at 2.0 "$errmodel set period_ 2.0"
	$ns_ at 2.0 "$errmodel set burstlen_ 1"
	$ns_ at 2.5 "$errmodel set period_ 1000.0"

	$ns_ at $stopt "$src close"

	# set up special params for this test
	$src set window_ 20
	$src set packetSize_ 576

	$self traceQueues $node_(s1) [$self openTrace $stopt $testName_]
	$ns_ run
}

#
# sack-illegal-sack-block
#
Class Test/sack-illegal-sack-block -superclass TestSuite
Test/sack-illegal-sack-block instproc init topo {
	$self instvar net_ defNet_ test_
	set net_ $topo
	set defNet_ net0-lossy
	set test_ sack-illegal-sack-block
	$self next
}
Test/sack-illegal-sack-block instproc run {} {
	$self instvar ns_ node_ testName_ topo_

	set stopt 2.0	

	$topo_ instvar lossylink_
	set errmodule [$lossylink_ errormodule]
	set errmodel [$errmodule errormodels]
	if { [llength $errmodel] > 1 } {
		puts "sack-illegal-sack-block: confused by >1 err models..abort"
		exit 1
	}

	$errmodel set offset_ 8.0
	$errmodel set burstlen_ 1

	# set up connection (do not use "create-connection" method because
	# we need a handle on the sink object)
	set src [new Agent/TCP/FullTcp/Sack]
	set sink [new Agent/TCP/FullTcp/Sack]
	$ns_ attach-agent $node_(s1) $src
	$ns_ attach-agent $node_(k1) $sink
	$src set fid_ 0
	$sink set fid_ 0
	$ns_ connect $src $sink

	# set up TCP-level connections
	$sink listen
	set ftp1 [$src attach-app FTP]
	$ns_ at 0.7 "$ftp1 start"
	$ns_ at 1.3 "$src close"

	# set up special params for this test
	$src set window_ 100
	$src set packetSize_ 576

	$self traceQueues $node_(r1) [$self openTrace $stopt $testName_]
	$ns_ run
}

#
# sack-dropwin
#
Class Test/sack-dropwin -superclass TestSuite
Test/sack-dropwin instproc init topo {
	$self instvar net_ defNet_ test_
	set net_ $topo
	set defNet_ net0-lossy
	set test_ sack-dropwin
	$self next
}
Test/sack-dropwin instproc run {} {
	$self instvar ns_ node_ testName_ topo_

	set stopt 5.5

	$topo_ instvar lossylink_
	set errmodule [$lossylink_ errormodule]
	set errmodel [$errmodule errormodels]
	if { [llength $errmodel] > 1 } {
		puts "sack-dropwin: confused by >1 err models..abort"
		exit 1
	}

	$errmodel set offset_ 47.0
	$errmodel set burstlen_ 10
	$errmodel set period_ 1000

	# set up connection (do not use "create-connection" method because
	# we need a handle on the sink object)
	set src [new Agent/TCP/FullTcp/Sack]
	set sink [new Agent/TCP/FullTcp/Sack]
	$ns_ attach-agent $node_(s1) $src
	$ns_ attach-agent $node_(k1) $sink
	$src set fid_ 0
	$sink set fid_ 0
	$ns_ connect $src $sink

	# set up TCP-level connections
	$sink listen
	set ftp1 [$src attach-app FTP]
	$ns_ at 0.7 "$ftp1 start"

	# set up special params for this test
	$src set window_ 10
	$src set packetSize_ 576

	$self traceQueues $node_(r1) [$self openTrace $stopt $testName_]
	$ns_ run
} 

TestSuite runTest