test-suite-ecn.tcl
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- #
- # Copyright (c) 1995-1997 The Regents of the University of California.
- # All rights reserved.
- #
- # Redistribution and use in source and binary forms, with or without
- # modification, are permitted provided that the following conditions
- # are met:
- # 1. Redistributions of source code must retain the above copyright
- # notice, this list of conditions and the following disclaimer.
- # 2. Redistributions in binary form must reproduce the above copyright
- # notice, this list of conditions and the following disclaimer in the
- # documentation and/or other materials provided with the distribution.
- # 3. All advertising materials mentioning features or use of this software
- # must display the following acknowledgement:
- # This product includes software developed by the Computer Systems
- # Engineering Group at Lawrence Berkeley Laboratory.
- # 4. Neither the name of the University nor of the Laboratory may be used
- # to endorse or promote products derived from this software without
- # specific prior written permission.
- #
- # THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- # ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- # SUCH DAMAGE.
- #
- # @(#) $Header: /cvsroot/nsnam/ns-2/tcl/test/test-suite-ecn.tcl,v 1.45 2006/01/25 22:02:05 sallyfloyd Exp $
- #
- # To run all tests: test-all-ecn
- set dir [pwd]
- catch "cd tcl/test"
- source misc_simple.tcl
- remove-all-packet-headers ; # removes all except common
- add-packet-header Flags IP TCP ; # hdrs reqd for validation test
- Agent/TCP set tcpTick_ 0.1
- # The default for tcpTick_ is being changed to reflect a changing reality.
- Agent/TCP set rfc2988_ false
- # The default for rfc2988_ is being changed to true.
- # FOR UPDATING GLOBAL DEFAULTS:
- Agent/TCP set precisionReduce_ false ; # default changed on 2006/1/24.
- Agent/TCP set rtxcur_init_ 6.0 ; # Default changed on 2006/01/21
- Agent/TCP set updated_rttvar_ false ; # Variable added on 2006/1/21
- Queue/RED set bytes_ false
- # default changed on 10/11/2004.
- Queue/RED set queue_in_bytes_ false
- # default changed on 10/11/2004.
- Agent/TCP/Newreno set newreno_changes1_ 0
- # The default is being changed to 1 on 5/5/03, to reflect RFC 2582.
- Agent/TCP/Newreno set partial_window_deflation_ 0
- # The default is being changed to 1 on 5/5/03, to reflect RFC 2582.
- Queue/RED set q_weight_ 0.002
- Queue/RED set thresh_ 5
- Queue/RED set maxthresh_ 15
- # The RED parameter defaults are being changed for automatic configuration.
- Agent/TCP set useHeaders_ false
- # The default is being changed to useHeaders_ true.
- Agent/TCP set windowInit_ 1
- # The default is being changed to 2.
- Agent/TCP set singledup_ 0
- # The default is being changed to 1
- catch "cd $dir"
- #Agent/TCP set oldCode_ true
- Agent/TCP set minrto_ 0
- # The default is being changed to minrto_ 1
- Agent/TCP set syn_ false
- Agent/TCP set delay_growth_ false
- # In preparation for changing the default values for syn_ and delay_growth_.
- Agent/TCP set SetCWRonRetransmit_ true
- # Changing the default value.
- set flowfile fairflow.tr; # file where flow data is written
- set flowgraphfile fairflow.xgr; # file given to graph tool
- Class Topology
- Topology instproc node? num {
- $self instvar node_
- return $node_($num)
- }
- Topology instproc makenodes ns {
- $self instvar node_
- set node_(s1) [$ns node]
- set node_(s2) [$ns node]
- set node_(r1) [$ns node]
- set node_(r2) [$ns node]
- set node_(s3) [$ns node]
- set node_(s4) [$ns node]
- set node_(r3) [$ns node]
- }
- Topology instproc createlinks ns {
- $self instvar node_
- $ns duplex-link $node_(s1) $node_(r1) 10Mb 2ms DropTail
- $ns duplex-link $node_(s2) $node_(r1) 10Mb 3ms DropTail
- $ns duplex-link $node_(r1) $node_(r2) 1.5Mb 20ms RED
- $ns queue-limit $node_(r1) $node_(r2) 25
- $ns queue-limit $node_(r2) $node_(r1) 25
- $ns duplex-link $node_(s3) $node_(r2) 10Mb 4ms DropTail
- $ns duplex-link $node_(s4) $node_(r2) 10Mb 5ms DropTail
- $ns duplex-link-op $node_(s1) $node_(r1) orient right-down
- $ns duplex-link-op $node_(s2) $node_(r1) orient right-up
- $ns duplex-link-op $node_(r1) $node_(r2) orient right
- $ns duplex-link-op $node_(r1) $node_(r2) queuePos 0
- $ns duplex-link-op $node_(r2) $node_(r1) queuePos 0
- $ns duplex-link-op $node_(s3) $node_(r2) orient left-down
- $ns duplex-link-op $node_(s4) $node_(r2) orient left-up
- }
- Topology instproc createlinks3 ns {
- $self instvar node_
- $ns duplex-link $node_(s1) $node_(r1) 10Mb 2ms DropTail
- $ns duplex-link $node_(s2) $node_(r1) 10Mb 3ms DropTail
- $ns duplex-link $node_(r1) $node_(r2) 1.5Mb 20ms RED
- $ns queue-limit $node_(r1) $node_(r2) 25
- $ns queue-limit $node_(r2) $node_(r1) 25
- $ns duplex-link $node_(r2) $node_(r3) 100Mb 0ms RED
- $ns queue-limit $node_(r2) $node_(r3) 100
- $ns queue-limit $node_(r3) $node_(r2) 100
- $ns duplex-link $node_(s3) $node_(r3) 10Mb 4ms DropTail
- $ns duplex-link $node_(s4) $node_(r3) 10Mb 5ms DropTail
- $ns duplex-link-op $node_(s1) $node_(r1) orient right-down
- $ns duplex-link-op $node_(s2) $node_(r1) orient right-up
- $ns duplex-link-op $node_(r1) $node_(r2) orient right
- $ns duplex-link-op $node_(r1) $node_(r2) queuePos 0
- $ns duplex-link-op $node_(r2) $node_(r1) queuePos 0
- $ns duplex-link-op $node_(r2) $node_(r3) queuePos 0
- $ns duplex-link-op $node_(r3) $node_(r2) queuePos 0
- $ns duplex-link-op $node_(s3) $node_(r3) orient left-down
- $ns duplex-link-op $node_(s4) $node_(r3) orient left-up
- }
- Class Topology/net2 -superclass Topology
- Topology/net2 instproc init ns {
- $self instvar node_
- $self makenodes $ns
- $self createlinks $ns
- }
- Class Topology/net2-lossy -superclass Topology
- Topology/net2-lossy instproc init ns {
- $self instvar node_
- $self makenodes $ns
- $self createlinks $ns
-
- $self instvar lossylink_
- set lossylink_ [$ns link $node_(r1) $node_(r2)]
- set em [new ErrorModule Fid]
- set errmodel [new ErrorModel/Periodic]
- $errmodel unit pkt
- $lossylink_ errormodule $em
- $em insert $errmodel
- $em bind $errmodel 0
- $em default pass
- }
- Class Topology/net3-lossy -superclass Topology
- Topology/net3-lossy instproc init ns {
- $self instvar node_
- $self makenodes $ns
- $self createlinks3 $ns
-
- $self instvar lossylink_
- set lossylink_ [$ns link $node_(r1) $node_(r2)]
- set em [new ErrorModule Fid]
- set errmodel [new ErrorModel/Periodic]
- $errmodel unit pkt
- $lossylink_ errormodule $em
- $em insert $errmodel
- $em bind $errmodel 0
- $em default pass
- $self instvar lossylink1_
- set lossylink1_ [$ns link $node_(r2) $node_(r3)]
- set em [new ErrorModule Fid]
- set errmodel [new ErrorModel/Periodic]
- $errmodel unit pkt
- $lossylink1_ errormodule $em
- $em insert $errmodel
- $em bind $errmodel 0
- $em default pass
- }
- TestSuite instproc finish file {
- global quiet PERL
- $self instvar ns_ tchan_ testName_ cwnd_chan_
- exec $PERL ../../bin/getrc -s 2 -d 3 all.tr |
- $PERL ../../bin/raw2xg -a -e -s 0.01 -m 90 -t $file > temp.rands
- exec $PERL ../../bin/getrc -s 3 -d 2 all.tr |
- $PERL ../../bin/raw2xg -a -e -s 0.01 -m 90 -t $file > temp1.rands
- if {$quiet == "false"} {
- exec xgraph -bb -tk -nl -m -x time -y packets temp.rands &
- # The line below plots both data and ack packets.
- # exec xgraph -bb -tk -nl -m -x time -y packets temp.rands
- # temp1.rands &
- }
- ## now use default graphing tool to make a data file
- ## if so desired
- if { [info exists tchan_] && $quiet == "false" } {
- $self plotQueue $testName_
- }
- if { [info exists cwnd_chan_] && $quiet == "false" } {
- $self plot_cwnd
- }
- $ns_ halt
- }
- TestSuite instproc enable_tracequeue ns {
- $self instvar tchan_ node_
- set redq [[$ns link $node_(r1) $node_(r2)] queue]
- set tchan_ [open all.q w]
- $redq trace curq_
- $redq trace ave_
- $redq attach $tchan_
- }
- TestSuite instproc plotQueue file {
- global quiet
- $self instvar tchan_
- #
- # Plot the queue size and average queue size, for RED gateways.
- #
- set awkCode {
- {
- if ($1 == "Q" && NF>2) {
- print $2, $3 >> "temp.q";
- set end $2
- }
- else if ($1 == "a" && NF>2)
- print $2, $3 >> "temp.a";
- }
- }
- set f [open temp.queue w]
- puts $f "TitleText: $file"
- puts $f "Device: Postscript"
- if { [info exists tchan_] } {
- close $tchan_
- }
- exec rm -f temp.q temp.a
- exec touch temp.a temp.q
- exec awk $awkCode all.q
- puts $f "queue
- exec cat temp.q >@ $f
- puts $f n"ave_queue
- exec cat temp.a >@ $f
- ###puts $f n"thresh
- ###puts $f 0 [[ns link $r1 $r2] get thresh]
- ###puts $f $end [[ns link $r1 $r2] get thresh]
- close $f
- if {$quiet == "false"} {
- exec xgraph -bb -tk -x time -y queue temp.queue &
- }
- }
- TestSuite instproc tcpDumpAll { tcpSrc interval label } {
- global quiet
- $self instvar dump_inst_ ns_
- if ![info exists dump_inst_($tcpSrc)] {
- set dump_inst_($tcpSrc) 1
- set report $label/window=[$tcpSrc set window_]/packetSize=[$tcpSrc set packetSize_]
- if {$quiet == "false"} {
- puts $report
- }
- $ns_ at 0.0 "$self tcpDumpAll $tcpSrc $interval $label"
- return
- }
- $ns_ at [expr [$ns_ now] + $interval] "$self tcpDumpAll $tcpSrc $interval $label"
- set report time=[$ns_ now]/class=$label/ack=[$tcpSrc set ack_]/packets_resent=[$tcpSrc set nrexmitpack_]
- if {$quiet == "false"} {
- puts $report
- }
- }
- TestSuite instproc emod {} {
- $self instvar topo_
- $topo_ instvar lossylink_
- set errmodule [$lossylink_ errormodule]
- return $errmodule
- }
- TestSuite instproc emod2 {} {
- $self instvar topo_
- $topo_ instvar lossylink1_
- set errmodule [$lossylink1_ errormodule]
- return $errmodule
- }
- TestSuite instproc setloss {} {
- $self instvar topo_
- $topo_ instvar lossylink_
- set errmodule [$lossylink_ errormodule]
- set errmodel [$errmodule errormodels]
- if { [llength $errmodel] > 1 } {
- puts "droppedfin: confused by >1 err models..abort"
- exit 1
- }
- return $errmodel
- }
- Class Test/ecn -superclass TestSuite
- Test/ecn instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2
- set test_ ecn
- set guide_ "Two connections using ECN."
- $self next pktTraceFile
- }
- Test/ecn instproc run {} {
- global quiet
- $self instvar ns_ node_ testName_ guide_
- puts "Guide: $guide_"
- $self setTopo
- Agent/TCP set old_ecn_ 1
- set stoptime 10.0
- set redq [[$ns_ link $node_(r1) $node_(r2)] queue]
- $redq set setbit_ true
- set tcp1 [$ns_ create-connection TCP/Reno $node_(s1) TCPSink $node_(s3) 0]
- $tcp1 set window_ 15
- $tcp1 set ecn_ 1
- set tcp2 [$ns_ create-connection TCP/Reno $node_(s2) TCPSink $node_(s3) 1]
- $tcp2 set window_ 15
- $tcp2 set ecn_ 1
-
- set ftp1 [$tcp1 attach-app FTP]
- set ftp2 [$tcp2 attach-app FTP]
-
- $self enable_tracequeue $ns_
- $ns_ at 0.0 "$ftp1 start"
- $ns_ at 3.0 "$ftp2 start"
-
- $self tcpDump $tcp1 5.0
-
- # trace only the bottleneck link
- #$self traceQueues $node_(r1) [$self openTrace $stoptime $testName_]
- $ns_ at $stoptime "$self cleanupAll $testName_"
-
- $ns_ run
- }
- #######################################################################
- TestSuite instproc ecnsetup { tcptype {stoptime 3.0} { tcp1fid 0 } { delack 0 }} {
- $self instvar ns_ node_ testName_ net_
- $self setTopo
- ##
- ## Agent/TCP set maxburst_ 4
- ##
- set delay 10ms
- $ns_ delay $node_(r1) $node_(r2) $delay
- $ns_ delay $node_(r2) $node_(r1) $delay
- set redq [[$ns_ link $node_(r1) $node_(r2)] queue]
- $redq set setbit_ true
- if {$tcptype == "Tahoe" && $delack == 0} {
- set tcp1 [$ns_ create-connection TCP $node_(s1)
- TCPSink $node_(s3) $tcp1fid]
- } elseif {$tcptype == "Sack1" && $delack == 0} {
- set tcp1 [$ns_ create-connection TCP/Sack1 $node_(s1)
- TCPSink/Sack1 $node_(s3) $tcp1fid]
- } elseif {$delack == 0} {
- set tcp1 [$ns_ create-connection TCP/$tcptype $node_(s1)
- TCPSink $node_(s3) $tcp1fid]
- } elseif {$tcptype == "Tahoe" && $delack == 1} {
- set tcp1 [$ns_ create-connection TCP $node_(s1)
- TCPSink/DelAck $node_(s3) $tcp1fid]
- } elseif {$tcptype == "Sack1" && $delack == 1} {
- set tcp1 [$ns_ create-connection TCP/Sack1 $node_(s1)
- TCPSink/Sack1/DelAck $node_(s3) $tcp1fid]
- } else {
- set tcp1 [$ns_ create-connection TCP/$tcptype $node_(s1)
- TCPSink/DelAck $node_(s3) $tcp1fid]
- }
- $tcp1 set window_ 30
- $tcp1 set ecn_ 1
- set ftp1 [$tcp1 attach-app FTP]
- $self enable_tracecwnd $ns_ $tcp1
-
- #$self enable_tracequeue $ns_
- $ns_ at 0.0 "$ftp1 start"
-
- $self tcpDump $tcp1 5.0
-
- # trace only the bottleneck link
- #$self traceQueues $node_(r1) [$self openTrace $stoptime $testName_]
- $ns_ at $stoptime "$self cleanupAll $testName_"
- }
- TestSuite instproc second_tcp { tcptype starttime } {
- $self instvar ns_ node_
- if {$tcptype == "Tahoe"} {
- set tcp [$ns_ create-connection TCP $node_(s1)
- TCPSink $node_(s3) 2]
- } elseif {$tcptype == "Sack1"} {
- set tcp [$ns_ create-connection TCP/Sack1 $node_(s1)
- TCPSink/Sack1 $node_(s3) 2]
- } else {
- set tcp [$ns_ create-connection TCP/$tcptype $node_(s1)
- TCPSink $node_(s3) 2]
- }
- $tcp set window_ 30
- $tcp set ecn_ 1
- set ftp [$tcp attach-app FTP]
- $ns_ at $starttime "$ftp start"
- }
- # 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
- }
- TestSuite instproc drop_pkts2 pkts {
- $self instvar ns_ errmodel2
- set emod [$self emod2]
- set errmodel2 [new ErrorModel/List]
- $errmodel2 droplist $pkts
- $emod insert $errmodel2
- $emod bind $errmodel2 1
- }
- #######################################################################
- # Tahoe Tests #
- #######################################################################
- # Plain ECN
- Class Test/ecn_nodrop_tahoe -superclass TestSuite
- Test/ecn_nodrop_tahoe instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_nodrop_tahoe
- set guide_ "Tahoe with ECN."
- $self next pktTraceFile
- }
- Test/ecn_nodrop_tahoe instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Tahoe 3.0
- $self drop_pkt 10000
- $ns_ run
- }
- # Two ECNs close together
- Class Test/ecn_twoecn_tahoe -superclass TestSuite
- Test/ecn_twoecn_tahoe instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_twoecn_tahoe
- set guide_ "Tahoe, two marked packets in one window."
- $self next pktTraceFile
- }
- Test/ecn_twoecn_tahoe instproc run {} {
- global quiet
- $self instvar ns_ lossmodel guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Tahoe 3.0
- $self drop_pkt 243
- $lossmodel set markecn_ true
- $ns_ run
- }
- # ECN followed by packet loss.
- Class Test/ecn_drop_tahoe -superclass TestSuite
- Test/ecn_drop_tahoe instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_drop_tahoe
- set guide_ "Tahoe, ECN followed by packet loss."
- $self next pktTraceFile
- }
- Test/ecn_drop_tahoe instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Tahoe 3.0
- $self drop_pkt 243
- $ns_ run
- }
- # ECN preceded by packet loss.
- Class Test/ecn_drop1_tahoe -superclass TestSuite
- Test/ecn_drop1_tahoe instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_drop1_tahoe
- set guide_ "Tahoe, ECN preceded by packet loss."
- $self next pktTraceFile
- }
- Test/ecn_drop1_tahoe instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Tahoe 3.0
- $self drop_pkt 241
- $ns_ run
- }
- # ECN preceded by packet loss.
- Class Test/ecn_drop2_tahoe -superclass TestSuite
- Test/ecn_drop2_tahoe instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_drop2_tahoe
- set guide_ "Tahoe, ECN preceded by packet loss."
- $self next pktTraceFile
- }
- Test/ecn_drop2_tahoe instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Tahoe 3.0
- $self drop_pkt 235
- $ns_ run
- }
- # Packet loss only.
- Class Test/ecn_noecn_tahoe -superclass TestSuite
- Test/ecn_noecn_tahoe instproc init {} {
- $self instvar net_ test_ guide_
- 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_tahoe
- Test/ecn_noecn_tahoe instproc run {} [Test/ecn_drop_tahoe info instbody run ]
- set guide_ "Tahoe, packet loss only, no ECN."
- $self next pktTraceFile
- }
- # Multiple dup acks with bugFix_
- Class Test/ecn_bursty_tahoe -superclass TestSuite
- Test/ecn_bursty_tahoe instproc init {} {
- $self instvar net_ test_ guide_
- 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_tahoe
- set guide_ "Tahoe, multiple dup acks, with bugFix."
- $self next pktTraceFile
- }
- Test/ecn_bursty_tahoe instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- $self ecnsetup Tahoe 3.0
- set lossmodel [$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_tahoe -superclass TestSuite
- Test/ecn_burstyEcn_tahoe instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- Agent/TCP set old_ecn_ 1
- set test_ ecn_burstyEcn_tahoe
- Test/ecn_burstyEcn_tahoe instproc run {} [Test/ecn_bursty_tahoe info instbody run ]
- set guide_ "Tahoe, multiple dup acks and ECN, with bugFix."
- $self next pktTraceFile
- }
- # Multiple dup acks without bugFix_
- Class Test/ecn_noBugfix_tahoe -superclass TestSuite
- Test/ecn_noBugfix_tahoe instproc init {} {
- $self instvar net_ test_ guide_
- 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_tahoe
- Test/ecn_noBugfix_tahoe instproc run {} [Test/ecn_bursty_tahoe info instbody run ]
- set guide_ "Tahoe, multiple dup acks, no bugFix."
- $self next pktTraceFile
- }
- # ECN followed by timeout.
- Class Test/ecn_timeout_tahoe -superclass TestSuite
- Test/ecn_timeout_tahoe instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_timeout_tahoe
- set guide_ "Tahoe, drops and ECN followed by a timeout."
- $self next pktTraceFile
- }
- Test/ecn_timeout_tahoe instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- $self ecnsetup Tahoe 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
- }
- # Only the timeout.
- Class Test/ecn_timeout2_tahoe -superclass TestSuite
- Test/ecn_timeout2_tahoe instproc init {} {
- $self instvar net_ test_ guide_
- 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_timeout2_tahoe
- set guide_ "Tahoe, drops followed by a timeout, no ECN."
- $self next pktTraceFile
- }
- Test/ecn_timeout2_tahoe instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- $self ecnsetup Tahoe 3.0 1
- $self drop_pkts {241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268}
- $ns_ run
- }
- # The timeout with the ECN in the middle of dropped packets.
- Class Test/ecn_timeout3_tahoe -superclass TestSuite
- Test/ecn_timeout3_tahoe instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_timeout3_tahoe
- set guide_ "Tahoe, drops and ECN followed by a timeout."
- $self next pktTraceFile
- }
- Test/ecn_timeout3_tahoe instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- $self ecnsetup Tahoe 3.0 1
- $self drop_pkts {241 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270}
- $ns_ run
- }
- # Packet drops with a window of one packet.
- Class Test/ecn_smallwin_tahoe -superclass TestSuite
- Test/ecn_smallwin_tahoe instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- Agent/TCP set bugFix_ true
- Agent/TCP set timerfix_ false
- # The default is being changed to true.
- set net_ net2-lossy
- set test_ ecn_smallwin_tahoe
- set guide_ "Tahoe, packet drops with a window of one."
- $self next pktTraceFile
- }
- Test/ecn_smallwin_tahoe instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 0
- $self ecnsetup Tahoe 6.0 1
- $self drop_pkts {4 8 9 10 11 100 115 118 119}
- $ns_ run
- }
- # ECN with a window of one packet.
- Class Test/ecn_smallwinEcn_tahoe -superclass TestSuite
- Test/ecn_smallwinEcn_tahoe instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- Agent/TCP set timerfix_ false
- # The default is being changed to true.
- set test_ ecn_smallwinEcn_tahoe
- set guide_ "Tahoe, ECN with a window of one."
- $self next pktTraceFile
- }
- Test/ecn_smallwinEcn_tahoe instproc run {} {
- global quiet
- $self instvar ns_ guide_ errmodel1
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 0
- $self ecnsetup Tahoe 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
- }
- # ECN, cwnd 4, packet 4 is dropped, and then packet 6 is marked.
- # The retransmit timer expires, packet 4 is retransmitted, and then the
- # ECN bit is set on the retransmitted packet.
- # When the ACK for packet 4 comes in, the retransmit timer must not get
- # cancelled.
- Class Test/ecn_smallwin1Ecn_tahoe -superclass TestSuite
- Test/ecn_smallwin1Ecn_tahoe instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net3-lossy
- Agent/TCP set bugFix_ true
- Agent/TCP set timerfix_ false
- # The default is being changed to true.
- set test_ ecn_smallwin1Ecn_tahoe
- set guide_ "Tahoe, ECN with small windows."
- $self next pktTraceFile
- }
- Test/ecn_smallwin1Ecn_tahoe instproc run {} {
- global quiet
- $self instvar ns_ guide_ errmodel1 errmodel2
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 0
- $self ecnsetup Tahoe 10.0 1
- $self drop_pkts {4 8 9 11 12 13 120 135 143 148 150 153}
- $errmodel1 set markecn_ true
- $self drop_pkts2 {6}
- $errmodel2 set markecn_ false
- $ns_ run
- }
- # ECN with a window of one packet, slow_start_restart_ false.
- Class Test/ecn_smallwin2Ecn_tahoe -superclass TestSuite
- Test/ecn_smallwin2Ecn_tahoe instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- Agent/TCP set slow_start_restart_ false
- Agent/TCP set timerfix_ false
- # The default is being changed to true.
- set test_ ecn_smallwin2Ecn_tahoe
- Test/ecn_smallwin2Ecn_tahoe instproc run {} [Test/ecn_smallwinEcn_tahoe info instbody run ]
- set guide_ "Tahoe, ECN with a window of one, no slow_start_restart."
- $self next pktTraceFile
- }
- Class Test/ecn_smallwin3Ecn_tahoe -superclass TestSuite
- Test/ecn_smallwin3Ecn_tahoe instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net3-lossy
- Agent/TCP set bugFix_ true
- Agent/TCP set slow_start_restart_ false
- set test_ ecn_smallwin3Ecn_tahoe
- Test/ecn_smallwin3Ecn_tahoe instproc run {} [Test/ecn_smallwin1Ecn_tahoe info instbody run ]
- set guide_ "Tahoe, ECN with small windows, no slow_start_restart."
- $self next pktTraceFile
- }
- # Packet drops for the second packet.
- Class Test/ecn_secondpkt_tahoe -superclass TestSuite
- Test/ecn_secondpkt_tahoe instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- Agent/TCP set bugFix_ true
- set net_ net2-lossy
- set test_ ecn_secondpkt_tahoe
- set guide_ "Tahoe, with the second packet dropped."
- $self next pktTraceFile
- }
- Test/ecn_secondpkt_tahoe instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 0
- $self ecnsetup Tahoe 2.0 1
- $self drop_pkts {1 3}
- $ns_ run
- }
- # ECN for the second packet.
- Class Test/ecn_secondpktEcn_tahoe -superclass TestSuite
- Test/ecn_secondpktEcn_tahoe instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_secondpktEcn_tahoe
- set guide_ "Tahoe, with the second packet marked."
- $self next pktTraceFile
- }
- Test/ecn_secondpktEcn_tahoe instproc run {} {
- global quiet
- $self instvar ns_ guide_ errmodel1
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 0
- $self ecnsetup Tahoe 2.0 1
- $self drop_pkts {1 3}
- $errmodel1 set markecn_ true
- $ns_ run
- }
- #######################################################################
- # Delayed Ack Tahoe Tests #
- #######################################################################
- # Plain ECN
- Class Test/ecn_nodrop_tahoe_delack -superclass TestSuite
- Test/ecn_nodrop_tahoe_delack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_nodrop_tahoe_delack
- set guide_ "Tahoe with ECN, delayed acks."
- $self next pktTraceFile
- }
- Test/ecn_nodrop_tahoe_delack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Tahoe 3.0 0 1
- $self drop_pkt 10000
- $ns_ run
- }
- # This one doesn't have two ECNs close together..
- Class Test/ecn_twoecn_tahoe_delack -superclass TestSuite
- Test/ecn_twoecn_tahoe_delack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_twoecn_tahoe_delack
- set guide_ "Tahoe, ECN, delayed acks."
- $self next pktTraceFile
- }
- Test/ecn_twoecn_tahoe_delack instproc run {} {
- global quiet
- $self instvar ns_ guide_ lossmodel
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Tahoe 3.0 0 1
- $self drop_pkt 243
- $lossmodel set markecn_ true
- $ns_ run
- }
- # ECN followed by packet loss?
- Class Test/ecn_drop_tahoe_delack -superclass TestSuite
- Test/ecn_drop_tahoe_delack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_drop_tahoe_delack
- set guide_ "Tahoe, ECN, delayed acks."
- $self next pktTraceFile
- }
- Test/ecn_drop_tahoe_delack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Tahoe 3.0 0 1
- $self drop_pkt 243
- $ns_ run
- }
- # ECN preceded by packet loss?
- Class Test/ecn_drop1_tahoe_delack -superclass TestSuite
- Test/ecn_drop1_tahoe_delack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_drop1_tahoe_delack
- set guide_ "Tahoe, ECN, delayed acks."
- $self next pktTraceFile
- }
- Test/ecn_drop1_tahoe_delack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Tahoe 3.0 0 1
- $self drop_pkt 241
- $ns_ run
- }
- # ECN with a window of one packet.
- Class Test/ecn_smallwinEcn_tahoe_delack -superclass TestSuite
- Test/ecn_smallwinEcn_tahoe_delack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- Agent/TCP set timerfix_ false
- # The default is being changed to true.
- set test_ ecn_smallwinEcn_tahoe_delack
- set guide_ "Tahoe, ECN with a window of one, delayed acks."
- $self next pktTraceFile
- }
- Test/ecn_smallwinEcn_tahoe_delack instproc run {} {
- global quiet
- $self instvar ns_ guide_ errmodel1
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 0
- $self ecnsetup Tahoe 10.0 1 1
- $self drop_pkts {4 8 9 11 12 13 120 135 143 148 150 151 152 153}
- $errmodel1 set markecn_ true
- $ns_ run
- }
- #######################################################################
- # Reno Tests #
- #######################################################################
- # Plain ECN
- Class Test/ecn_nodrop_reno -superclass TestSuite
- Test/ecn_nodrop_reno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_nodrop_reno
- set guide_ "Reno with ECN."
- $self next pktTraceFile
- }
- Test/ecn_nodrop_reno instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- 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 -superclass TestSuite
- Test/ecn_twoecn_reno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_twoecn_reno
- set guide_ "Reno, two marked packets in one window."
- $self next pktTraceFile
- }
- Test/ecn_twoecn_reno instproc run {} {
- global quiet
- $self instvar ns_ guide_ lossmodel
- puts "Guide: $guide_"
- 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 -superclass TestSuite
- Test/ecn_drop_reno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_drop_reno
- set guide_ "Reno, ECN followed by packet loss."
- $self next pktTraceFile
- }
- Test/ecn_drop_reno instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Reno 3.0
- $self drop_pkt 243
- $ns_ run
- }
- # ECN preceded by packet loss.
- Class Test/ecn_drop1_reno -superclass TestSuite
- Test/ecn_drop1_reno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_drop1_reno
- set guide_ "Reno, ECN preceded by packet loss."
- $self next pktTraceFile
- }
- Test/ecn_drop1_reno instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- 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 -superclass TestSuite
- Test/ecn_noecn_reno instproc init {} {
- $self instvar net_ test_ guide_
- 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
- Test/ecn_noecn_reno instproc run {} [Test/ecn_drop_reno info instbody run ]
- set guide_ "Reno, packet loss only, no ECN."
- $self next pktTraceFile
- }
- # Multiple dup acks with bugFix_
- Class Test/ecn_bursty_reno -superclass TestSuite
- Test/ecn_bursty_reno instproc init {} {
- $self instvar net_ test_ guide_
- 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
- set guide_ "Reno, multiple dup acks, with bugFix."
- $self next pktTraceFile
- }
- Test/ecn_bursty_reno instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- $self ecnsetup Reno 3.0
- set lossmodel [$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 -superclass TestSuite
- Test/ecn_burstyEcn_reno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_burstyEcn_reno
- Test/ecn_burstyEcn_reno instproc run {} [Test/ecn_bursty_reno info instbody run ]
- set guide_ "Reno, multiple dup acks and ECN, with bugFix."
- $self next pktTraceFile
- }
- # Multiple dup acks without bugFix_
- Class Test/ecn_noBugfix_reno -superclass TestSuite
- Test/ecn_noBugfix_reno instproc init {} {
- $self instvar net_ test_ guide_
- 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
- Test/ecn_noBugfix_reno instproc run {} [Test/ecn_bursty_reno info instbody run ]
- set guide_ "Reno, multiple dup acks, no bugFix."
- $self next pktTraceFile
- }
- # ECN followed by timeout?.
- # Nope.
- Class Test/ecn_timeout_reno -superclass TestSuite
- Test/ecn_timeout_reno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_timeout_reno
- set guide_ "Reno, drops followed by a timeout, no ECN."
- $self next pktTraceFile
- }
- Test/ecn_timeout_reno instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- $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 -superclass TestSuite
- Test/ecn_timeout1_reno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_timeout1_reno
- set guide_ "Reno, drops and ECN followed by a timeout."
- $self next pktTraceFile
- }
- Test/ecn_timeout1_reno instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- 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 -superclass TestSuite
- Test/ecn_smallwin_reno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- Agent/TCP set bugFix_ true
- set net_ net2-lossy
- set test_ ecn_smallwin_reno
- set guide_ "Reno, packet drops with a window of one."
- $self next pktTraceFile
- }
- Test/ecn_smallwin_reno instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- 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.
- Class Test/ecn_smallwinEcn_reno -superclass TestSuite
- Test/ecn_smallwinEcn_reno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_smallwinEcn_reno
- set guide_ "Reno, ECN with a window of one."
- $self next pktTraceFile
- }
- Test/ecn_smallwinEcn_reno instproc run {} {
- global quiet
- $self instvar ns_ guide_ errmodel1
- puts "Guide: $guide_"
- 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
- }
- Class Test/ecn_smallwin1Ecn_reno -superclass TestSuite
- Test/ecn_smallwin1Ecn_reno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net3-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_smallwin1Ecn_reno
- set guide_ "Reno, ECN with small windows."
- $self next pktTraceFile
- }
- Test/ecn_smallwin1Ecn_reno instproc run {} {
- global quiet
- $self instvar ns_ guide_ errmodel1 errmodel2
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 0
- $self ecnsetup Reno 10.0 1
- $self drop_pkts {4 8 9 11 12 13 120 135 143 148 150 153}
- $errmodel1 set markecn_ true
- $self drop_pkts2 {6}
- $errmodel2 set markecn_ false
- $ns_ run
- }
- # Packet drops for the second packet.
- Class Test/ecn_secondpkt_reno -superclass TestSuite
- Test/ecn_secondpkt_reno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- Agent/TCP set bugFix_ true
- set net_ net2-lossy
- set test_ ecn_secondpkt_reno
- set guide_ "Reno, with the second packet dropped."
- $self next pktTraceFile
- }
- Test/ecn_secondpkt_reno instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- 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 -superclass TestSuite
- Test/ecn_secondpktEcn_reno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_secondpktEcn_reno
- set guide_ "Reno, with the second packet marked."
- $self next pktTraceFile
- }
- Test/ecn_secondpktEcn_reno instproc run {} {
- global quiet
- $self instvar ns_ guide_ errmodel1
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 0
- $self ecnsetup Reno 2.0 1
- $self drop_pkts {1 3}
- $errmodel1 set markecn_ true
- $ns_ run
- }
- #######################################################################
- # Delayed Ack Reno Tests #
- #######################################################################
- # Plain ECN
- Class Test/ecn_nodrop_reno_delack -superclass TestSuite
- Test/ecn_nodrop_reno_delack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_nodrop_reno_delack
- set guide_ "Reno, ECN, delayed acks."
- $self next pktTraceFile
- }
- Test/ecn_nodrop_reno_delack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Reno 3.0 0 1
- $self drop_pkt 10000
- $ns_ run
- }
- # Two ECNs close together
- Class Test/ecn_twoecn_reno_delack -superclass TestSuite
- Test/ecn_twoecn_reno_delack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_twoecn_reno_delack
- set guide_ "Reno, ECN, delayed acks."
- $self next pktTraceFile
- }
- Test/ecn_twoecn_reno_delack instproc run {} {
- global quiet
- $self instvar ns_ guide_ lossmodel
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Reno 3.0 0 1
- $self drop_pkt 243
- $lossmodel set markecn_ true
- $ns_ run
- }
- # ECN followed by packet loss.
- Class Test/ecn_drop_reno_delack -superclass TestSuite
- Test/ecn_drop_reno_delack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_drop_reno_delack
- set guide_ "Reno, packet loss followed by ECN, delayed acks."
- $self next pktTraceFile
- }
- Test/ecn_drop_reno_delack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Reno 3.0 0 1
- $self drop_pkt 243
- $ns_ run
- }
- # ECN preceded by packet loss.
- # NO.
- Class Test/ecn_drop1_reno_delack -superclass TestSuite
- Test/ecn_drop1_reno_delack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_drop1_reno_delack
- set guide_ "Reno, packet loss followed by ECN, delayed acks."
- $self next pktTraceFile
- }
- Test/ecn_drop1_reno_delack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Reno 3.0 0 1
- $self drop_pkt 241
- $ns_ run
- }
- # ECN with a window of one packet.
- Class Test/ecn_smallwinEcn_reno_delack -superclass TestSuite
- Test/ecn_smallwinEcn_reno_delack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_smallwinEcn_reno_delack
- set guide_ "Reno, delayed acks, ECN with a window of one."
- $self next pktTraceFile
- }
- Test/ecn_smallwinEcn_reno_delack instproc run {} {
- global quiet
- $self instvar ns_ guide_ errmodel1
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 0
- $self ecnsetup Reno 10.0 1 1
- $self drop_pkts {4 8 9 11 120 135 143 148 150 151 152 153}
- $errmodel1 set markecn_ true
- $ns_ run
- }
- #######################################################################
- # Sack1 Tests #
- #######################################################################
- # Plain ECN
- Class Test/ecn_nodrop_sack -superclass TestSuite
- Test/ecn_nodrop_sack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_nodrop_sack
- set guide_ "Sack with ECN."
- $self next pktTraceFile
- }
- Test/ecn_nodrop_sack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Sack1 3.0
- $self drop_pkt 10000
- $ns_ run
- }
- # Two ECNs close together
- Class Test/ecn_twoecn_sack -superclass TestSuite
- Test/ecn_twoecn_sack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_twoecn_sack
- set guide_ "Sack, two marked packets in one window."
- $self next pktTraceFile
- }
- Test/ecn_twoecn_sack instproc run {} {
- global quiet
- $self instvar ns_ guide_ lossmodel
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Sack1 3.0
- $self drop_pkt 243
- $lossmodel set markecn_ true
- $ns_ run
- }
- # ECN followed by packet loss.
- Class Test/ecn_drop_sack -superclass TestSuite
- Test/ecn_drop_sack instproc init {} {
- $self instvar net_ test_ guide_
- # Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_drop_sack
- set guide_ "Sack, ECN preceded by packet loss."
- $self next pktTraceFile
- }
- Test/ecn_drop_sack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Sack1 3.0
- $self drop_pkt 243
- $ns_ run
- }
- # ECN followed by packet loss.
- Class Test/ecn_drop1_sack -superclass TestSuite
- Test/ecn_drop1_sack instproc init {} {
- $self instvar net_ test_ guide_
- # Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_drop1_sack
- set guide_ "Sack, ECN preceded by packet loss."
- $self next pktTraceFile
- }
- Test/ecn_drop1_sack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Sack1 3.0
- $self drop_pkt 241
- $ns_ run
- }
- # Packet loss only.
- Class Test/ecn_noecn_sack -superclass TestSuite
- Test/ecn_noecn_sack instproc init {} {
- $self instvar net_ test_ guide_
- 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_sack
- Test/ecn_noecn_sack instproc run {} [Test/ecn_drop_sack info instbody run ]
- set guide_ "Sack, packet loss only, no ECN."
- $self next pktTraceFile
- }
- # Multiple dup acks with bugFix_
- Class Test/ecn_bursty_sack -superclass TestSuite
- Test/ecn_bursty_sack instproc init {} {
- $self instvar net_ test_ guide_
- 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_sack
- set guide_ "Sack, multiple dup acks, with bugFix."
- $self next pktTraceFile
- }
- Test/ecn_bursty_sack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- $self ecnsetup Sack1 3.0
- set lossmodel [$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_sack -superclass TestSuite
- Test/ecn_burstyEcn_sack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- Agent/TCP set old_ecn_ 1
- set test_ ecn_burstyEcn_sack
- Test/ecn_burstyEcn_sack instproc run {} [Test/ecn_bursty_sack info instbody run ]
- set guide_ "Sack, multiple dup acks and ECN, with bugFix."
- $self next pktTraceFile
- }
- # Multiple dup acks following ECN
- Class Test/ecn_burstyEcn1_sack -superclass TestSuite
- Test/ecn_burstyEcn1_sack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_burstyEcn1_sack
- set guide_ "Sack, multiple dup acks and ECN, with bugFix."
- $self next pktTraceFile
- }
- Test/ecn_burstyEcn1_sack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- $self ecnsetup Sack1 3.0
- set lossmodel [$self setloss]
- $lossmodel set offset_ 245
- $lossmodel set burstlen_ 17
- $lossmodel set period_ 10000
- $ns_ run
- }
- # Multiple dup acks without bugFix_
- Class Test/ecn_noBugfix_sack -superclass TestSuite
- Test/ecn_noBugfix_sack instproc init {} {
- $self instvar net_ test_ guide_
- 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_sack
- Test/ecn_noBugfix_sack instproc run {} [Test/ecn_bursty_sack info instbody run ]
- set guide_ "Sack, multiple dup acks, no bugFix."
- $self next pktTraceFile
- }
- # ECN followed by timeout.
- Class Test/ecn_timeout_sack -superclass TestSuite
- Test/ecn_timeout_sack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_timeout_sack
- set guide_ "Sack, drops and ECN followed by a timeout."
- $self next pktTraceFile
- }
- Test/ecn_timeout_sack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- $self ecnsetup Sack1 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_sack -superclass TestSuite
- Test/ecn_timeout1_sack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_timeout1_sack
- set guide_ "Sack, drops and ECN followed by a timeout."
- $self next pktTraceFile
- }
- Test/ecn_timeout1_sack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Sack1 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
- }
- # ECN and packet drops.
- Class Test/ecn_fourdrops_sack -superclass TestSuite
- Test/ecn_fourdrops_sack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_fourdrops_sack
- set guide_ "Reno, ECN with four packet drops."
- $self next pktTraceFile
- }
- Test/ecn_fourdrops_sack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- $self ecnsetup Sack1 3.0 1
- $self drop_pkts {242 244 267 268}
- $ns_ run
- }
- # Packet drops with a window of one packet.
- Class Test/ecn_smallwin_sack -superclass TestSuite
- Test/ecn_smallwin_sack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- Agent/TCP set bugFix_ true
- set net_ net2-lossy
- set test_ ecn_smallwin_sack
- set guide_ "Sack, packet drops with a window of one."
- $self next pktTraceFile
- }
- Test/ecn_smallwin_sack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 0
- $self ecnsetup Sack1 6.0 1
- $self drop_pkts {4 8 9 10 11 100 115 121 124 126 127 128}
- $ns_ run
- }
- # ECN with a window of one packet.
- Class Test/ecn_smallwinEcn_sack -superclass TestSuite
- Test/ecn_smallwinEcn_sack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_smallwinEcn_sack
- set guide_ "Sack, ECN with a window of one."
- $self next pktTraceFile
- }
- Test/ecn_smallwinEcn_sack instproc run {} {
- global quiet
- $self instvar ns_ guide_ errmodel1
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 0
- $self ecnsetup Sack1 10.0 1
- $self drop_pkts {4 7 9 10 11 12 13 14 120 135 143 148 150 151 152}
- $errmodel1 set markecn_ true
- $ns_ run
- }
- Class Test/ecn_smallwin1Ecn_sack -superclass TestSuite
- Test/ecn_smallwin1Ecn_sack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net3-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_smallwin1Ecn_sack
- set guide_ "Sack, ECN with small windows."
- $self next pktTraceFile
- }
- Test/ecn_smallwin1Ecn_sack instproc run {} {
- global quiet
- $self instvar ns_ guide_ errmodel1 errmodel2
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 0
- $self ecnsetup Sack1 10.0 1
- $self drop_pkts {4 8 9 11 12 13 120 135 143 148 150 153}
- $errmodel1 set markecn_ true
- $self drop_pkts2 {6}
- $errmodel2 set markecn_ false
- $ns_ run
- }
- # Packet drops for the second packet.
- Class Test/ecn_secondpkt_sack -superclass TestSuite
- Test/ecn_secondpkt_sack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- Agent/TCP set bugFix_ true
- set net_ net2-lossy
- set test_ ecn_secondpkt_sack
- set guide_ "Sack, with the second packet dropped."
- $self next pktTraceFile
- }
- Test/ecn_secondpkt_sack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 0
- $self ecnsetup Sack1 2.0 1
- $self drop_pkts {1 3}
- $ns_ run
- }
- # ECN for the second packet.
- Class Test/ecn_secondpktEcn_sack -superclass TestSuite
- Test/ecn_secondpktEcn_sack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_secondpktEcn_sack
- set guide_ "Sack, with the second packet marked."
- $self next pktTraceFile
- }
- Test/ecn_secondpktEcn_sack instproc run {} {
- global quiet
- $self instvar ns_ guide_ errmodel1
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 0
- $self ecnsetup Sack1 2.0 1
- $self drop_pkts {1 3}
- $errmodel1 set markecn_ true
- $ns_ run
- }
- #######################################################################
- # Delayed Ack Sack1 Tests #
- #######################################################################
- # Plain ECN
- Class Test/ecn_nodrop_sack_delack -superclass TestSuite
- Test/ecn_nodrop_sack_delack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_nodrop_sack_delack
- set guide_ "Sack, ECN, delayed acks."
- $self next pktTraceFile
- }
- Test/ecn_nodrop_sack_delack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Sack1 3.0 0 1
- $self drop_pkt 10000
- $ns_ run
- }
- # Two ECNs close together
- Class Test/ecn_twoecn_sack_delack -superclass TestSuite
- Test/ecn_twoecn_sack_delack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_twoecn_sack_delack
- set guide_ "Sack, ECN, delayed acks."
- $self next pktTraceFile
- }
- Test/ecn_twoecn_sack_delack instproc run {} {
- global quiet
- $self instvar ns_ guide_ lossmodel
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Sack1 3.0 0 1
- $self drop_pkt 243
- $lossmodel set markecn_ true
- $ns_ run
- }
- # ECN followed by packet loss.
- Class Test/ecn_drop_sack_delack -superclass TestSuite
- Test/ecn_drop_sack_delack instproc init {} {
- $self instvar net_ test_ guide_
- # Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_drop_sack_delack
- set guide_ "Sack, packet loss followed by ECN, delayed acks."
- $self next pktTraceFile
- }
- Test/ecn_drop_sack_delack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Sack1 3.0 0 1
- $self drop_pkt 243
- $ns_ run
- }
- # ECN followed by packet loss.
- Class Test/ecn_drop1_sack_delack -superclass TestSuite
- Test/ecn_drop1_sack_delack instproc init {} {
- $self instvar net_ test_ guide_
- # Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_drop1_sack_delack
- set guide_ "Sack, packet loss followed by ECN, delayed acks."
- $self next pktTraceFile
- }
- Test/ecn_drop1_sack_delack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Sack1 3.0 0 1
- $self drop_pkt 241
- $ns_ run
- }
- # ECN with a window of one packet.
- Class Test/ecn_smallwinEcn_sack_delack -superclass TestSuite
- Test/ecn_smallwinEcn_sack_delack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_smallwinEcn_sack_delack
- set guide_ "Sack, delayed ack, ECN with small windows."
- $self next pktTraceFile
- }
- Test/ecn_smallwinEcn_sack_delack instproc run {} {
- global quiet
- $self instvar ns_ guide_ errmodel1
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 0
- $self ecnsetup Sack1 10.0 1 1
- $self drop_pkts {4 7 9 11 12 120 135 143 148 150 151 152}
- $errmodel1 set markecn_ true
- $ns_ run
- }
- #######################################################################
- # Newreno Tests #
- #######################################################################
- # Plain ECN
- Class Test/ecn_nodrop_newreno -superclass TestSuite
- Test/ecn_nodrop_newreno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_nodrop_newreno
- set guide_ "NewReno with ECN."
- $self next pktTraceFile
- }
- Test/ecn_nodrop_newreno instproc run {} {
- global quiet
- $self instvar ns_ guide_
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Newreno 3.0
- $self drop_pkt 10000
- $ns_ run
- }
- # Two ECNs close together
- Class Test/ecn_twoecn_newreno -superclass TestSuite
- Test/ecn_twoecn_newreno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_twoecn_newreno
- set guide_ "NewReno, two marked packets in one window."
- $self next pktTraceFile
- }
- Test/ecn_twoecn_newreno instproc run {} {
- global quiet
- $self instvar ns_ guide_ lossmodel
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Newreno 3.0
- $self drop_pkt 243
- $lossmodel set markecn_ true
- $ns_ run
- }
- # ECN followed by packet loss.
- Class Test/ecn_drop_newreno -superclass TestSuite
- Test/ecn_drop_newreno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_drop_newreno
- set guide_ "NewReno, ECN preceded by packet loss."
- $self next pktTraceFile
- }
- Test/ecn_drop_newreno instproc run {} {
- global quiet
- $self instvar ns_ guide_
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Newreno 3.0
- $self drop_pkt 243
- $ns_ run
- }
- # ECN preceded by packet loss.
- Class Test/ecn_drop1_newreno -superclass TestSuite
- Test/ecn_drop1_newreno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_drop1_newreno
- set guide_ "NewReno, ECN preceded by packet loss."
- $self next pktTraceFile
- }
- Test/ecn_drop1_newreno instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Newreno 3.0
- $self drop_pkt 241
- $ns_ run
- }
- # Packet loss only.
- Class Test/ecn_noecn_newreno -superclass TestSuite
- Test/ecn_noecn_newreno instproc init {} {
- $self instvar net_ test_ guide_
- 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_newreno
- Test/ecn_noecn_newreno instproc run {} [Test/ecn_drop_newreno info instbody run ]
- set guide_ "NewReno, packet loss only, no ECN."
- $self next pktTraceFile
- }
- # Multiple dup acks with bugFix_
- Class Test/ecn_bursty_newreno -superclass TestSuite
- Test/ecn_bursty_newreno instproc init {} {
- $self instvar net_ test_ guide_
- 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_newreno
- set guide_ "NewReno, multiple dup acks, with bugFix."
- $self next pktTraceFile
- }
- Test/ecn_bursty_newreno instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- $self ecnsetup Newreno 3.0
- set lossmodel [$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_newreno -superclass TestSuite
- Test/ecn_burstyEcn_newreno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- Agent/TCP set old_ecn_ 1
- set test_ ecn_burstyEcn_newreno
- Test/ecn_burstyEcn_newreno instproc run {} [Test/ecn_bursty_newreno info instbody run ]
- set guide_ "NewReno, multiple dup acks and ECN, with bugFix."
- $self next pktTraceFile
- }
- # ECN followed by timeout.
- # Nope.
- Class Test/ecn_timeout_newreno -superclass TestSuite
- Test/ecn_timeout_newreno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_timeout_newreno
- set guide_ "NewReno, multiple dup acks"
- $self next pktTraceFile
- }
- Test/ecn_timeout_newreno instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- $self ecnsetup Newreno 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_newreno -superclass TestSuite
- Test/ecn_timeout1_newreno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_timeout1_newreno
- set guide_ "NewReno, drops and ECN followed by a timeout."
- $self next pktTraceFile
- }
- Test/ecn_timeout1_newreno instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Newreno 3.0 1
- Agent/TCP set old_ecn_ 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_newreno -superclass TestSuite
- Test/ecn_smallwin_newreno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- Agent/TCP set bugFix_ true
- set net_ net2-lossy
- set test_ ecn_smallwin_newreno
- set guide_ "NewReno, packet drops with a window of one."
- $self next pktTraceFile
- }
- Test/ecn_smallwin_newreno instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 0
- $self ecnsetup Newreno 6.0 1
- $self drop_pkts {4 8 9 10 11 100 115 121 124 126 127 128}
- $ns_ run
- }
- # ECN with a window of one packet.
- Class Test/ecn_smallwinEcn_newreno -superclass TestSuite
- Test/ecn_smallwinEcn_newreno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_smallwinEcn_newreno
- set guide_ "NewReno, ECN with a window of one."
- $self next pktTraceFile
- }
- Test/ecn_smallwinEcn_newreno instproc run {} {
- global quiet
- $self instvar ns_ guide_ errmodel1
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 0
- $self ecnsetup Newreno 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_newreno -superclass TestSuite
- Test/ecn_secondpkt_newreno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- Agent/TCP set bugFix_ true
- set net_ net2-lossy
- set test_ ecn_secondpkt_newreno
- set guide_ "NewReno, with the second packet dropped."
- $self next pktTraceFile
- }
- Test/ecn_secondpkt_newreno instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 0
- $self ecnsetup Newreno 2.0 1
- $self drop_pkts {1 3}
- $ns_ run
- }
- # ECN for the second packet.
- Class Test/ecn_secondpktEcn_newreno -superclass TestSuite
- Test/ecn_secondpktEcn_newreno instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_secondpktEcn_newreno
- set guide_ "NewReno, with the second packet marked."
- $self next pktTraceFile
- }
- Test/ecn_secondpktEcn_newreno instproc run {} {
- global quiet
- $self instvar ns_ guide_ errmodel1
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 0
- $self ecnsetup Newreno 2.0 1
- $self drop_pkts {1 3}
- $errmodel1 set markecn_ true
- $ns_ run
- }
- #######################################################################
- # Delayed Ack Newreno Tests #
- #######################################################################
- # Plain ECN
- Class Test/ecn_nodrop_newreno_delack -superclass TestSuite
- Test/ecn_nodrop_newreno_delack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_nodrop_newreno_delack
- set guide_ "NewReno, with the second packet marked."
- $self next pktTraceFile
- }
- Test/ecn_nodrop_newreno_delack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Newreno 3.0 0 1
- $self drop_pkt 10000
- $ns_ run
- }
- # Two ECNs close together
- # Nope.
- Class Test/ecn_twoecn_newreno_delack -superclass TestSuite
- Test/ecn_twoecn_newreno_delack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_twoecn_newreno_delack
- set guide_ "NewReno, delayed acks."
- $self next pktTraceFile
- }
- Test/ecn_twoecn_newreno_delack instproc run {} {
- global quiet guide_
- $self instvar ns_ guide_ lossmodel
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Newreno 3.0 0 1
- $self drop_pkt 243
- $lossmodel set markecn_ true
- $ns_ run
- }
- # ECN followed by packet loss.
- Class Test/ecn_drop_newreno_delack -superclass TestSuite
- Test/ecn_drop_newreno_delack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_drop_newreno_delack
- set guide_ "ECN followed by packet loss."
- $self next pktTraceFile
- }
- Test/ecn_drop_newreno_delack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Newreno 3.0 0 1
- $self drop_pkt 243
- $ns_ run
- }
- # ECN preceded by packet loss.
- # NO.
- Class Test/ecn_drop1_newreno_delack -superclass TestSuite
- Test/ecn_drop1_newreno_delack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_drop1_newreno_delack
- set guide_ "ECN preceded by packet loss?"
- $self next pktTraceFile
- }
- Test/ecn_drop1_newreno_delack instproc run {} {
- global quiet
- $self instvar ns_ guide_
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 1
- $self ecnsetup Newreno 3.0 0 1
- $self drop_pkt 241
- $ns_ run
- }
- # ECN with a window of one packet.
- Class Test/ecn_smallwinEcn_newreno_delack -superclass TestSuite
- Test/ecn_smallwinEcn_newreno_delack instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_smallwinEcn_newreno_delack
- set guide_ "ECN with a window of one packet."
- $self next pktTraceFile
- }
- Test/ecn_smallwinEcn_newreno_delack instproc run {} {
- global quiet
- $self instvar ns_ guide_ errmodel1
- puts "Guide: $guide_"
- Agent/TCP set old_ecn_ 0
- $self ecnsetup Newreno 10.0 1 1
- $self drop_pkts {4 8 9 11 120 135 143 148 150 151 152 153}
- $errmodel1 set markecn_ true
- $ns_ run
- }
- #################################################################
- #################################################################
- #
- # Links1 uses 8Mb, 5ms feeders, and a 800Kb 20ms bottleneck.
- # Queue-limit on bottleneck is 25 packets.
- #
- Class Topology/net6 -superclass Topology
- Topology/net6 instproc init ns {
- $self instvar node_
- set node_(s1) [$ns node]
- set node_(s2) [$ns node]
- set node_(r1) [$ns node]
- set node_(k1) [$ns node]
- Queue/RED set setbit_ true
- $ns duplex-link $node_(s1) $node_(r1) 8Mb 5ms DropTail
- $ns duplex-link $node_(s2) $node_(r1) 8Mb 5ms DropTail
- $ns duplex-link $node_(r1) $node_(k1) 800Kb 20ms RED
- $ns queue-limit $node_(r1) $node_(k1) 25
- $ns queue-limit $node_(k1) $node_(r1) 25
- }
- # This test shows two TCPs when one is ECN-capable and the other
- # is not.
- Class Test/ecn1 -superclass TestSuite
- Test/ecn1 instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net6
- set test_ ecn1_(one_with_ecn1,_one_without)
- set guide_ "Two TCPs, one with ECN and one without."
- $self next pktTraceFile
- }
- Test/ecn1 instproc run {} {
- global quiet
- $self instvar ns_ guide_ node_ guide_ testName_
- puts "Guide: $guide_"
- $self setTopo
- Agent/TCP set old_ecn_ 1
- # Set up TCP connection
- set tcp1 [$ns_ create-connection TCP $node_(s1) TCPSink $node_(k1) 0]
- $tcp1 set window_ 30
- $tcp1 set ecn_ 1
- set ftp1 [$tcp1 attach-app FTP]
- $ns_ at 0.0 "$ftp1 start"
- # Set up TCP connection
- set tcp2 [$ns_ create-connection TCP $node_(s2) TCPSink $node_(k1) 1]
- $tcp2 set window_ 20
- $tcp2 set ecn_ 0
- set ftp2 [$tcp2 attach-app FTP]
- $ns_ at 3.0 "$ftp2 start"
- $self tcpDump $tcp1 5.0
- $self tcpDump $tcp2 5.0
- #$self traceQueues $node_(r1) [$self openTrace 10.0 $testName_]
- $ns_ at 10.0 "$self cleanupAll $testName_"
- $ns_ run
- }
- TestSuite runTest