test-suite-tcp-init-win.tcl

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Test/newreno1 instproc run {} {
        $self instvar ns_ node_ testName_
	$self setTopo
	Agent/TCP set windowInitOption_ 2
	set tcp1 [$self make_tcp s1 k1 0 Newreno]
	$tcp1 set packetSize_ 1000
	set tcp2 [$self make_tcp s2 k1 1 Newreno]
	$tcp2 set packetSize_ 1500
	set tcp3 [$self make_tcp s2 k1 2 Newreno]
	$tcp3 set packetSize_ 2500
	$self run_test $tcp1 $tcp2 $tcp3 1.0 1.0 16
}

Class Test/newreno2 -superclass TestSuite
Test/newreno2 instproc init {} {
	$self instvar net_ test_ guide_
	set net_	net6
	set test_	newreno2(static_initial_windows)
	set guide_	"NewReno TCP, static initial windows."
	$self next pktTraceFile
}
Test/newreno2 instproc run {} {
	$self instvar ns_ node_ testName_
	$self setTopo
	set tcp1 [$self make_tcp s1 k1 0 Newreno] 
	$tcp1 set windowInit_ 6
	$tcp1 set syn_ false
	$tcp1 set delay_growth_ false
	set tcp2 [$self make_tcp s2 k1 1 Newreno]
	$tcp2 set syn_ true
	$tcp2 set delay_growth_ true
	set tcp3 [$self make_tcp s2 k1 2 Newreno]
	$tcp3 set windowInit_ 6
	$tcp3 set syn_ true
	$tcp3 set delay_growth_ true
	$self run_test $tcp1 $tcp2 $tcp3 1.0 1.0 16
}

Class Test/newreno3 -superclass TestSuite
Test/newreno3 instproc init {} {
	$self instvar net_ test_ guide_ 
	set net_	net6
	set test_	newreno3(dropped_syn)
	set guide_	"NewReno TCP, initial window after a dropped SYN packet."
        $self next pktTraceFile
}

Test/newreno3 instproc run {} {
        $self instvar ns_ node_ testName_ 
	$self setTopo
	Agent/TCP set windowInitOption_ 2
	set tcp1 [$self make_tcp s1 k1 0 Newreno]
	$tcp1 set packetSize_ 1000
	$self drop_pkt [$ns_ link $node_(r1) $node_(k1)] 0 1
	$self runall_test $tcp1 10.0 10.0 
}

Class Test/newreno4 -superclass TestSuite
Test/newreno4 instproc init {} {
	$self instvar net_ test_ guide_
	set net_	net7
	set test_	newreno4(fast_retransmit)
	set guide_	"NewReno TCP, window after a Fast Retransmit."
	Queue/RED set ns1_compat_ true
	$self next pktTraceFile
}
Test/newreno4 instproc run {} {
	$self instvar ns_ node_ testName_
	$self setTopo
	Agent/TCP set packetSize_ 1000
	Agent/TCP set windowInitOption_ 2

        set tcp1 [$self make_tcp s1 k1 0 Newreno] 
        set tcp2 [$self make_tcp s2 k1 1 Newreno]
	$self second_test $tcp1 $tcp2
}



Class Test/sack1 -superclass TestSuite
Test/sack1 instproc init {} {
	$self instvar net_ test_ guide_ 
	set net_	net6
	set test_	sack1(variable_packet_sizes)
	set guide_	"Sack TCP, initial windows with different packet sizes."
        $self next pktTraceFile
}
Test/sack1 instproc run {} {
        $self instvar ns_ node_ testName_
	$self setTopo
	Agent/TCP set windowInitOption_ 2
	set tcp1 [$self make_tcp s1 k1 0 Sack]
	$tcp1 set packetSize_ 1000
	set tcp2 [$self make_tcp s2 k1 1 Sack]
	$tcp2 set packetSize_ 1500
	set tcp3 [$self make_tcp s2 k1 2 Sack]
	$tcp3 set packetSize_ 2500
	$self run_test $tcp1 $tcp2 $tcp3 1.0 1.0 16
}

Class Test/sack2 -superclass TestSuite
Test/sack2 instproc init {} {
	$self instvar net_ test_ guide_
	set net_	net6
	set test_	sack2(static_initial_windows)
	set guide_	"Sack TCP, static initial windows."
	$self next pktTraceFile
}
Test/sack2 instproc run {} {
	$self instvar ns_ node_ testName_
	$self setTopo
	set tcp1 [$self make_tcp s1 k1 0 Sack] 
	$tcp1 set windowInit_ 6
	$tcp1 set syn_ false
	$tcp1 set delay_growth_ false
	set tcp2 [$self make_tcp s2 k1 1 Sack]
	$tcp2 set syn_ true
	$tcp2 set delay_growth_ true
	set tcp3 [$self make_tcp s2 k1 2 Sack]
	$tcp3 set windowInit_ 6
	$tcp3 set syn_ true
	$tcp3 set delay_growth_ true
	$self run_test $tcp1 $tcp2 $tcp3 1.0 1.0 16
}

Class Test/sack3 -superclass TestSuite
Test/sack3 instproc init {} {
	$self instvar net_ test_ guide_ 
	set net_	net6
	set test_	sack3(dropped_syn)
	set guide_	"Sack TCP, initial window after a dropped SYN packet."
        $self next pktTraceFile
}

Test/sack3 instproc run {} {
        $self instvar ns_ node_ testName_ 
	$self setTopo
	Agent/TCP set windowInitOption_ 2
	set tcp1 [$self make_tcp s1 k1 0 Sack]
	$tcp1 set packetSize_ 1000
	$self drop_pkt [$ns_ link $node_(r1) $node_(k1)] 0 1
	$self runall_test $tcp1 10.0 10.0 
}

Class Test/sack4 -superclass TestSuite
Test/sack4 instproc init {} {
	$self instvar net_ test_ guide_
	set net_	net7
	set test_	sack4(fast_retransmit)
	set guide_	"Sack TCP, window after a Fast Retransmit."
	Queue/RED set ns1_compat_ true
	$self next pktTraceFile
}
Test/sack4 instproc run {} {
	$self instvar ns_ node_ testName_
	$self setTopo
	Agent/TCP set packetSize_ 1000
	Agent/TCP set windowInitOption_ 2

        set tcp1 [$self make_tcp s1 k1 0 Sack] 
        set tcp2 [$self make_tcp s2 k1 1 Sack]
	$self second_test $tcp1 $tcp2
}

TestSuite instproc printtimers { tcp time} {
        global quiet
        if {$quiet == "false"} {
		set srtt [expr [$tcp set srtt_]/8 ]
		set rttvar [expr [$tcp set rttvar_]/4 ]
		set rto [expr $srtt + 2 * $rttvar ]
                puts "time: $time sRTT(in ticks): $srtt RTTvar(in ticks): $rttvar sRTT+2*RTTvar: $rto backoff: [$tcp set backoff_]" 
        }
}

TestSuite instproc printtimersAll { tcp time interval } {
        $self instvar dump_inst_ ns_   
        if ![info exists dump_inst_($tcp)] {
                set dump_inst_($tcp) 1
                $ns_ at $time "$self printtimersAll $tcp $time $interval"
                return
        }
        set newTime [expr [$ns_ now] + $interval]
        $ns_ at $time "$self printtimers $tcp $time"
        $ns_ at $newTime "$self printtimersAll $tcp $newTime $interval"
}


# This test shows the packets and acknowledgements at the source,
# for a path with a 9.6Kbps link, and 1000-byte packets.
Class Test/slowLink -superclass TestSuite
Test/slowLink instproc init {} {
	global plotacks
	$self instvar net_ test_ guide_ 
	set net_	net8
	set test_	slowLink(9.6K-link,1000-byte-pkt)
	set guide_	"Slow link, with statistics for sRTT, RTTvar, backoff"
        set plotacks true
        $self next pktTraceFile
}

Test/slowLink instproc run {} {
        $self instvar ns_ node_ testName_ 
	$self setTopo
	Agent/TCP set windowInitOption_ 2
	Agent/TCP set minrto_ 1
	set tcp1 [$self make_tcp s1 k1 0 Sack]
	$tcp1 set packetSize_ 1000
	$ns_ at 0.0 "$self printtimersAll $tcp1 0 1"
	$self runall_test $tcp1 30.0 30.0 
}

# # This test shows the packets and acknowledgements at the source,
# # for a path with a 9.6Kbps link, and 1000-byte packets.
# Class Test/slowLinkDelayAck -superclass TestSuite
# Test/slowLinkDelayAck instproc init {} {
# 	global plotacks
# 	$self instvar net_ test_ guide_ 
# 	set net_	net8
# 	set test_	slowLinkDelayAck(9.6K-link,1000-byte-pkt)
#         set plotacks true
#         $self next pktTraceFile
# }
# 
# Test/slowLinkDelayAck instproc run {} {
#         $self instvar ns_ node_ testName_ 
# 	$self setTopo
# 	Agent/TCP set windowInitOption_ 2
# 	Agent/TCP set minrto_ 1
# 	set tcp1 [$self make_tcp s1 k1 0 SackDelAck]
# 	$tcp1 set packetSize_ 1000
# 	$ns_ at 0.0 "$self printtimersAll $tcp1 0 1"
# 	$self runall_test $tcp1 30.0 30.0 
# }

# This test shows the packets and acknowledgements at the source,
# for a path with a 9.6Kbps link, and 1500-byte packets.
Class Test/slowLink1 -superclass TestSuite
Test/slowLink1 instproc init {} {
	global plotacks
	$self instvar net_ test_ guide_ 
	set net_	net8
	set test_	slowLink1(9.6K-link,1500-byte-pkt)
	set guide_	"Slow link, with larger packets and a smaller initial window."
        set plotacks true
        $self next pktTraceFile
}

Test/slowLink1 instproc run {} {
        $self instvar ns_ node_ testName_ 
	$self setTopo
	Agent/TCP set windowInitOption_ 2
	Agent/TCP set minrto_ 1
	set tcp1 [$self make_tcp s1 k1 0 Sack]
	$tcp1 set packetSize_ 1500
	$self runall_test $tcp1 30.0 30.0 
}

# This test shows the packets and acknowledgements at the source,
# for a path with a 9.6Kbps link, and 1500-byte packets.
# Initial window of one packet.
Class Test/slowLink2 -superclass TestSuite
Test/slowLink2 instproc init {} {
	global plotacks
	$self instvar net_ test_ guide_ 
	set net_	net8
	set test_	slowLink2(9.6K-link,1500-byte-pkt)
	set guide_	"Slow link, with an initial window of two packets."
        set plotacks true
        $self next pktTraceFile
}

Test/slowLink2 instproc run {} {
        $self instvar ns_ node_ testName_ 
	$self setTopo
	Agent/TCP set windowInitOption_ 1
	Agent/TCP set minrto_ 1
	set tcp1 [$self make_tcp s1 k1 0 Sack]
	$tcp1 set packetSize_ 1500
	$self runall_test $tcp1 30.0 30.0 
}
# time 1.1: RTO, pkt 1 retransmitted, slow-start entered.
# time 1.4: ACK arrives for (first) pkt 1, pkts 2 and 3 transmitted.
# time 2.4: RTO, pkt 2 retransmitted, slow-start entered.
# time 2.6: ACK arrives for (second) pkt 1.
# time 3.7: RTO, pkt 2 retransmitted, slow-start entered.
# time 3.9: ACK arrives for (first) pkt 2, pkt 3 retransmitted, pkt 4
#           transmitted
# time 5.2: ACK arrives for (first) pkt 3, pkt 5 transmitted.

Class Test/droppedSYN -superclass TestSuite
Test/droppedSYN instproc init {} {
	$self instvar net_ test_ guide_ 
	set net_	net6
	set test_	droppedSYN
	set guide_	"NewReno TCP before bugfix_ss_, dropped SYN packet." 
	## static initial window of four packets
   	Agent/TCP set bugfix_ss_ 0
        Agent/TCP set windowInit_ 4
        $self next pktTraceFile
}

Test/droppedSYN instproc run {} {
        $self instvar ns_ node_ testName_ 
	$self setTopo
	Agent/TCP set windowInitOption_ 1
	set tcp1 [$self make_tcp s1 k1 0 Newreno]
	$self drop_pkt [$ns_ link $node_(r1) $node_(k1)] 0 1
	$self runall_test $tcp1 5.0 5.0 
}

Class Test/droppedSYN1 -superclass TestSuite
Test/droppedSYN1 instproc init {} {
	$self instvar net_ test_ guide_ 
	set net_	net6
	set test_	droppedSYN(bugfix_ss_)
	set guide_	"NewReno TCP, dropped SYN packet." 
	## static initial window of four packets
   	Agent/TCP set bugfix_ss_ 1
        Agent/TCP set windowInit_ 4
        Test/droppedSYN1 instproc run {} [Test/droppedSYN info instbody run ]
        $self next pktTraceFile
}

Class Test/droppedPKT -superclass TestSuite
Test/droppedPKT instproc init {} {
	$self instvar net_ test_ guide_ 
	set net_	net6
	set test_	droppedPKT(Newreno)
	set guide_	"NewReno TCP without bugfix_ss_, dropped initial data packet."
	## static initial window of four packets
   	Agent/TCP set bugfix_ss_ 0
        Agent/TCP set windowInit_ 4
        $self next pktTraceFile
}

Test/droppedPKT instproc run {} {
        $self instvar ns_ node_ testName_ 
	$self setTopo
	Agent/TCP set windowInitOption_ 1
	set tcp1 [$self make_tcp s1 k1 0 Newreno]
	$self drop_pkt [$ns_ link $node_(r1) $node_(k1)] 0 2
	$self runall_test $tcp1 5.0 5.0 
}

Class Test/droppedPKT1 -superclass TestSuite
Test/droppedPKT1 instproc init {} {
	$self instvar net_ test_ guide_ 
	set net_	net6
	set test_	droppedPKT(NewReno,bugfix_ss_)
	set guide_	"NewReno TCP, dropped initial data packet."
	## static initial window of four packets
   	Agent/TCP set bugfix_ss_ 1
        Agent/TCP set windowInit_ 4
        Test/droppedPKT1 instproc run {} [Test/droppedPKT info instbody run ]
        $self next pktTraceFile
}

Class Test/droppedPKT2 -superclass TestSuite
Test/droppedPKT2 instproc init {} {
	$self instvar net_ test_ guide_ 
	set net_	net6
	set test_	droppedPKT2(Sack)
	set guide_	"Sack TCP without bugfix_ss_, dropped initial data packet."
	## static initial window of four packets
   	Agent/TCP set bugfix_ss_ 0
        Agent/TCP set windowInit_ 4
        $self next pktTraceFile
}

Test/droppedPKT2 instproc run {} {
        $self instvar ns_ node_ testName_ 
	$self setTopo
	Agent/TCP set windowInitOption_ 1
	set tcp1 [$self make_tcp s1 k1 0 Sack]
	$self drop_pkt [$ns_ link $node_(r1) $node_(k1)] 0 2
	$self runall_test $tcp1 5.0 5.0 
}

Class Test/droppedPKT3 -superclass TestSuite
Test/droppedPKT3 instproc init {} {
	$self instvar net_ test_ guide_ 
	set net_	net6
	set test_	droppedPKT3(Sack,bugfix_ss_)
	set guide_	"Sack TCP, dropped initial data packet."
	## static initial window of four packets
   	Agent/TCP set bugfix_ss_ 1
        Agent/TCP set windowInit_ 4
        Test/droppedPKT3 instproc run {} [Test/droppedPKT2 info instbody run ]
        $self next pktTraceFile
}

TestSuite runTest

### Local Variables:
### mode: tcl
### tcl-indent-level: 8
### tcl-default-application: ns
### End: