test-suite-ecn-full.tcl

来自「柯老师网站上找到的」· TCL 代码 · 共 579 行 · 第 1/2 页

    set ftp1 [$tcp1 attach-app FTP]
    $ns_ at 0.0 "$ftp1 start"
    if { $dump == 1 } {
	$self tcpDump $tcp1 5.0
        $self enable_tracecwnd $ns_ $tcp1
    }
}

TestSuite instproc second_tcp { tcptype starttime } {
    $self tcpconnection $tcptype 2 0 0 
}

# Drop the specified packet.
TestSuite instproc drop_pkt { number } {
    $self instvar ns_ lossmodel
    set lossmodel [$self setloss]
    $lossmodel set offset_ $number
    $lossmodel set period_ 10000
}

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

}

#######################################################################
# Reno Tests #
#######################################################################

# Plain ECN
Class Test/ecn_nodrop_reno_full -superclass TestSuite
Test/ecn_nodrop_reno_full instproc init {} {
        $self instvar net_ test_
        Queue/RED set setbit_ true
        set net_	net2-lossy
	Agent/TCP set bugFix_ true
        set test_	ecn_nodrop_reno_full
        $self next
}
Test/ecn_nodrop_reno_full instproc run {} {
	$self instvar ns_
	Agent/TCP set old_ecn_ 1
	$self ecnsetup Reno 3.0 
	$self drop_pkt 10000
	$ns_ run
}

# Two ECNs close together
Class Test/ecn_twoecn_reno_full -superclass TestSuite
Test/ecn_twoecn_reno_full instproc init {} {
        $self instvar net_ test_ 
        Queue/RED set setbit_ true
        set net_	net2-lossy
	Agent/TCP set bugFix_ true
        set test_	ecn_twoecn_reno_full
        $self next
}
Test/ecn_twoecn_reno_full instproc run {} {
	$self instvar ns_ lossmodel
	Agent/TCP set old_ecn_ 1
	$self ecnsetup Reno 3.0 
	$self drop_pkt 243
	$lossmodel set markecn_ true
	$ns_ run
}

# ECN followed by packet loss.
Class Test/ecn_drop_reno_full -superclass TestSuite
Test/ecn_drop_reno_full instproc init {} {
        $self instvar net_ test_
        Queue/RED set setbit_ true
        set net_	net2-lossy
	Agent/TCP set bugFix_ true
        set test_	ecn_drop_reno_full
        $self next
}
Test/ecn_drop_reno_full instproc run {} {
	$self instvar ns_
	Agent/TCP set old_ecn_ 1
	$self ecnsetup Reno 3.0
	$self drop_pkt 243
	$ns_ run
}

# ECN preceded by packet loss.
# NO.
Class Test/ecn_drop1_reno_full -superclass TestSuite
Test/ecn_drop1_reno_full instproc init {} {
        $self instvar net_ test_
        Queue/RED set setbit_ true
        set net_	net2-lossy
	Agent/TCP set bugFix_ true
        set test_	ecn_drop1_reno_full
        $self next
}
Test/ecn_drop1_reno_full instproc run {} {
	$self instvar ns_
	Agent/TCP set old_ecn_ 1
	$self ecnsetup Reno 3.0
	$self drop_pkt 241
	$ns_ run
}

# Packet loss only.
Class Test/ecn_noecn_reno_full -superclass TestSuite
Test/ecn_noecn_reno_full instproc init {} {
        $self instvar net_ test_
        Queue/RED set setbit_ true
	Queue/RED set thresh_ 1000
	Queue/RED set maxthresh_ 1000
        set net_	net2-lossy
	Agent/TCP set bugFix_ true
        set test_	ecn_noecn_reno_full
	Test/ecn_noecn_reno_full instproc run {} [Test/ecn_drop_reno_full info instbody run ]
        $self next
}

# Multiple dup acks with bugFix_
Class Test/ecn_bursty_reno_full -superclass TestSuite
Test/ecn_bursty_reno_full instproc init {} {
        $self instvar net_ test_
        Queue/RED set setbit_ true
	Queue/RED set thresh_ 100
	Queue/RED set maxthresh_ 100
        set net_	net2-lossy
	Agent/TCP set bugFix_ true
        set test_	ecn_bursty_reno_full
        $self next
}
Test/ecn_bursty_reno_full instproc run {} {
	$self instvar ns_

	$self ecnsetup Reno 3.0
        set lossmodel [$self setloss]
        $lossmodel set offset_ 245
	$lossmodel set burstlen_ 15
        $lossmodel set period_ 10000
	$ns_ run
}

# Multiple dup acks following ECN
Class Test/ecn_burstyEcn_reno_full -superclass TestSuite
Test/ecn_burstyEcn_reno_full instproc init {} {
        $self instvar net_ test_
        Queue/RED set setbit_ true
        set net_	net2-lossy
	Agent/TCP set bugFix_ true
        set test_	ecn_burstyEcn_reno_full
	Test/ecn_burstyEcn_reno_full instproc run {} [Test/ecn_bursty_reno_full info instbody run ]   
        $self next
}

# Multiple dup acks without bugFix_
Class Test/ecn_noBugfix_reno_full -superclass TestSuite
Test/ecn_noBugfix_reno_full instproc init {} {
        $self instvar net_ test_
	Queue/RED set thresh_ 100 
	Queue/RED set maxthresh_ 100
        Queue/RED set setbit_ true
        set net_	net2-lossy
	Agent/TCP set bugFix_ false
        set test_	ecn_noBugfix_reno_full
	Test/ecn_noBugfix_reno_full instproc run {} [Test/ecn_bursty_reno_full info instbody run ]

        $self next
}

# ECN followed by timeout.
Class Test/ecn_timeout_reno_full -superclass TestSuite
Test/ecn_timeout_reno_full instproc init {} {
        $self instvar net_ test_
        Queue/RED set setbit_ true
        set net_	net2-lossy
	Agent/TCP set bugFix_ true
        set test_	ecn_timeout_reno_full
        $self next
}
Test/ecn_timeout_reno_full instproc run {} {
	$self instvar ns_
	$self ecnsetup Reno 3.0 1
	$self drop_pkts {242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268} 

	$ns_ run
}

# ECN followed by a timeout, followed by an ECN representing a
# new instance of congestion.
Class Test/ecn_timeout1_reno_full -superclass TestSuite
Test/ecn_timeout1_reno_full instproc init {} {
        $self instvar net_ test_
        Queue/RED set setbit_ true
        set net_	net2-lossy
	Agent/TCP set bugFix_ true
        set test_	ecn_timeout1_reno_full
        $self next
}
Test/ecn_timeout1_reno_full instproc run {} {
	$self instvar ns_
	Agent/TCP set old_ecn_ 1
	$self ecnsetup Reno 3.0 1
	$self drop_pkts {245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265} 
	$self second_tcp Tahoe 1.0
	$ns_ run
}

# Packet drops with a window of one packet.
Class Test/ecn_smallwin_reno_full -superclass TestSuite
Test/ecn_smallwin_reno_full instproc init {} {
        $self instvar net_ test_
        Queue/RED set setbit_ true
	Agent/TCP set bugFix_ true
        set net_	net2-lossy
        set test_	ecn_smallwin_reno_full
        $self next
}
Test/ecn_smallwin_reno_full instproc run {} {
	$self instvar ns_
	Agent/TCP set old_ecn_ 0
	$self ecnsetup Reno 6.0 1
	$self drop_pkts {4 8 9 10 11 100 115 118 119 121 122}

	$ns_ run
}

# ECN with a window of one packet.
## Reno-full does not back off for a congestion window of one.
Class Test/ecn_smallwinEcn_reno_full -superclass TestSuite
Test/ecn_smallwinEcn_reno_full instproc init {} {
        $self instvar net_ test_ 
        Queue/RED set setbit_ true
        set net_	net2-lossy
	Agent/TCP set bugFix_ true
        set test_	ecn_smallwinEcn_reno_full
        $self next
}
Test/ecn_smallwinEcn_reno_full instproc run {} {
	$self instvar ns_ errmodel1
	Agent/TCP set old_ecn_ 0
	$self ecnsetup Reno 10.0 1
	$self drop_pkts {4 8 9 11 12 13 120 135 143 148 150 151 152 153} 
	$errmodel1 set markecn_ true
	$ns_ run
}

# Packet drops for the second packet.
Class Test/ecn_secondpkt_reno_full -superclass TestSuite
Test/ecn_secondpkt_reno_full instproc init {} {
        $self instvar net_ test_
        Queue/RED set setbit_ true
	Agent/TCP set bugFix_ true
        set net_	net2-lossy
        set test_	ecn_secondpkt_reno_full
        $self next
}
Test/ecn_secondpkt_reno_full instproc run {} {
	$self instvar ns_
	Agent/TCP set old_ecn_ 0
	$self ecnsetup Reno 2.0 1
	$self drop_pkts {1 3} 

	$ns_ run
}

# ECN for the second packet.
Class Test/ecn_secondpktEcn_reno_full -superclass TestSuite
Test/ecn_secondpktEcn_reno_full instproc init {} {
        $self instvar net_ test_ 
        Queue/RED set setbit_ true
        set net_	net2-lossy
	Agent/TCP set bugFix_ true
        set test_	ecn_secondpktEcn_reno_full
        $self next
}
Test/ecn_secondpktEcn_reno_full instproc run {} {
	$self instvar ns_ errmodel1
	Agent/TCP set old_ecn_ 0
	$self ecnsetup Reno 2.0 1
	$self drop_pkts {1 3} 
	$errmodel1 set markecn_ true
	$ns_ run
}

TestSuite runTest