test-suite-ecn-ack.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-ack.tcl,v 1.29 2007/09/29 01:09:23 sallyfloyd Exp $
- #
- # To run all tests: test-all-ecn-ack
- set dir [pwd]
- catch "cd tcl/test"
- catch "cd $dir"
- source misc_simple.tcl
- remove-all-packet-headers ; # removes all except common
- add-packet-header Flags IP TCP RTP ; # hdrs reqd for validation test
-
- # FOR UPDATING GLOBAL DEFAULTS:
- # Agent/TCP/FullTcp set debug_ true;
- set flowfile fairflow.tr; # file where flow data is written
- set flowgraphfile fairflow.xgr; # file given to graph tool
- Trace set show_tcphdr_ 1
- set wrap 90
- set wrap1 [expr 90 * 512 + 40]
- 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]
- }
- 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
- }
- 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/net2A-lossy -superclass Topology
- Topology/net2A-lossy instproc init ns {
- $self instvar node_
- $self makenodes $ns
- $self createlinks $ns
- $self instvar lossylink_
- set lossylink_ [$ns link $node_(r2) $node_(r1)]
- 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
- }
- TestSuite instproc finish file {
- global quiet wrap wrap1 PERL
- $self instvar ns_ tchan_ testName_ cwnd_chan_
- if {$file == "ecn_ack_fulltcp"} {
- ## tracing forward-path data packets
- exec $PERL ../../bin/getrc -s 2 -d 3 all.tr |
- $PERL ../../bin/raw2xg -aecx -s 0.01 -m $wrap -t $file > temp.rands
- exec $PERL ../../bin/getrc -s 3 -d 2 all.tr |
- $PERL ../../bin/raw2xg -aefcx -s 0.01 -m $wrap -t $file > temp1.rands
- } elseif {$wrap == $wrap1} {
- ## tracing reverse-path data packets
- exec $PERL ../../bin/getrc -s 2 -d 3 all.tr |
- $PERL ../../bin/raw2xg -aefcx -s 0.01 -m $wrap -t $file > temp.rands
- exec $PERL ../../bin/getrc -s 3 -d 2 all.tr |
- $PERL ../../bin/raw2xg -aecx -s 0.01 -m $wrap -t $file > temp1.rands
- } else {
- exec $PERL ../../bin/getrc -s 2 -d 3 all.tr |
- $PERL ../../bin/raw2xg -aecx -s 0.01 -m $wrap -t $file > temp.rands
- exec $PERL ../../bin/getrc -s 3 -d 2 all.tr |
- $PERL ../../bin/raw2xg -aecx -s 0.01 -m $wrap -t $file > temp1.rands
- }
- if {$quiet == "false"} {
- 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 cwnd_chan_] && $quiet == "false" } {
- $self plot_cwnd
- }
- if { [info exists tchan_] && $quiet == "false" } {
- $self plotQueue $testName_
- }
- # exec csh gnuplotC2.com temp.rands temp1.rands $file eps
- $ns_ halt
- }
- 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 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
- }
- TestSuite instproc ecnsetup { tcptype { tcp1fid 0 } } {
- $self instvar ns_ node_ testName_ net_
- global wrap wrap1
- set delay 10ms
- $ns_ delay $node_(r1) $node_(r2) $delay
- $ns_ delay $node_(r2) $node_(r1) $delay
- set stoptime 2.0
- set redq [[$ns_ link $node_(r1) $node_(r2)] queue]
- $redq set setbit_ true
- $redq set limit_ 50
- set fid 1
- if {$tcptype == "Tahoe"} {
- set tcp1 [$ns_ create-connection TCP $node_(s1)
- TCPSink $node_(s3) $tcp1fid]
- } elseif {$tcptype == "Sack1"} {
- set tcp1 [$ns_ create-connection TCP/Sack1 $node_(s1)
- TCPSink/Sack1 $node_(s3) $tcp1fid]
- } elseif {$tcptype == "FullTcpSack1"} {
- set wrap $wrap1
- set tcp1 [new Agent/TCP/FullTcp/Sack]
- set sink [new Agent/TCP/FullTcp/Sack]
- $ns_ attach-agent $node_(s1) $tcp1
- $ns_ attach-agent $node_(s3) $sink
- $tcp1 set fid_ $fid
- $sink set fid_ $fid
- $ns_ connect $tcp1 $sink
- # set up TCP-level connections
- $sink listen ; # will figure out who its peer is
- $sink set window_ 35
- $sink set ecn_ 1
- } else {
- set tcp1 [$ns_ create-connection TCP/$tcptype $node_(s1)
- TCPSink $node_(s3) $tcp1fid]
- }
- $tcp1 set window_ 35
- $tcp1 set ecn_ 1
- set ftp1 [$tcp1 attach-app FTP]
- $self enable_tracecwnd $ns_ $tcp1
-
- $ns_ at 0.0 "$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_"
- }
- # 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
- }
- # Mark the specified packet.
- TestSuite instproc mark_pkt { number } {
- $self instvar ns_ lossmodel
- set lossmodel [$self setloss]
- $lossmodel set offset_ $number
- $lossmodel set period_ 10000
- $lossmodel set markecn_ true
- }
- TestSuite instproc emod1 {} {
- $self instvar lossylink_
- set errmodule [$lossylink_ errormodule]
- return $errmodule
- }
- TestSuite instproc set_lossylink {} {
- $self instvar lossylink_ ns_ node_
- set lossylink_ [$ns_ link $node_(r1) $node_(r2)]
- set em [new ErrorModule Fid]
- set errmodel [new ErrorModel/Periodic]
- $errmodel unit pkt
- $lossylink_ errormodule $em
- }
- TestSuite instproc drop_pkts pkts {
- $self instvar ns_
- set emod [$self emod1]
- set errmodel1 [new ErrorModel/List]
- $errmodel1 droplist $pkts
- $emod insert $errmodel1
- $emod bind $errmodel1 0
- }
- #######################################################################
- # SACK Test #
- #######################################################################
- Class Test/ecn_ack -superclass TestSuite
- Test/ecn_ack instproc init {} {
- $self instvar net_ test_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_ack
- $self next
- }
- Test/ecn_ack instproc run {} {
- $self instvar ns_
- $self setTopo
- $self ecnsetup Sack1
- $self drop_pkt 20000
- $ns_ run
- }
- Class Test/ecn_ack_fulltcp -superclass TestSuite
- Test/ecn_ack_fulltcp instproc init {} {
- $self instvar net_ test_
- Queue/RED set setbit_ true
- set net_ net2-lossy
- Agent/TCP set bugFix_ true
- set test_ ecn_ack_fulltcp
- $self next
- }
- Test/ecn_ack_fulltcp instproc run {} {
- global quiet wrap wrap1
- $self instvar ns_
- $self setTopo
- set wrap $wrap1
- $self ecnsetup FullTcpSack1
- $self drop_pkt 20000
- $ns_ run
- }
- #######################################################################
- # SYN/ACK Packets #
- #######################################################################
- # No SYN packets dropped or marked.
- Class Test/synack -superclass TestSuite
- Test/synack instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2-lossy
- set test_ synack_
- set guide_ "No SYN packets dropped or marked."
- Agent/TCPSink set ecn_syn_ false
- $self next pktTraceFile
- }
- Test/synack instproc run {} {
- global quiet
- $self instvar ns_ guide_ node_ guide_ testName_
- puts "Guide: $guide_"
- Agent/TCP set ecn_ 1
- Agent/TCP set window_ 8
- $self setTopo
- # Set up forward TCP connection
- set tcp1 [$ns_ create-connection TCP $node_(s1) TCPSink $node_(s4) 0]
- $tcp1 set window_ 8
- set ftp1 [$tcp1 attach-app FTP]
- $ns_ at 0.00 "$ftp1 produce 20"
- $self drop_pkt 1000
- $self tcpDump $tcp1 5.0
- $ns_ at 10.0 "$self cleanupAll $testName_"
- $ns_ run
- }
- # Full TCP, no SYN packets dropped or marked.
- Class Test/synack_fulltcp -superclass TestSuite
- Test/synack_fulltcp instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2-lossy
- set test_ synack_fulltcp_
- set guide_ "Full TCP, no SYN packets dropped or marked."
- Agent/TCPSink set ecn_syn_ false
- $self next pktTraceFile
- }
- Test/synack_fulltcp instproc run {} {
- global quiet wrap wrap1
- $self instvar ns_ guide_ node_ guide_ testName_
- puts "Guide: $guide_"
- Agent/TCP set ecn_ 1
- Agent/TCP set window_ 8
- $self setTopo
- # Set up forward TCP connection
- set wrap $wrap1
- set tcp1 [new Agent/TCP/FullTcp/Sack]
- set sink [new Agent/TCP/FullTcp/Sack]
- $ns_ attach-agent $node_(s1) $tcp1
- $ns_ attach-agent $node_(s4) $sink
- $tcp1 set fid_ 0
- $sink set fid_ 0
- $ns_ connect $tcp1 $sink
- $sink listen ; # will figure out who its peer is
- set ftp1 [$tcp1 attach-app FTP]
- $ns_ at 0.00 "$ftp1 produce 5"
- set ftp2 [$sink attach-app FTP]
- $ns_ at 0.03 "$ftp2 produce 20"
- $self drop_pkt 1000
- $self tcpDump $tcp1 5.0
- $ns_ at 10.0 "$self cleanupAll $testName_"
- $ns_ run
- }
- # SYN packet dropped.
- Class Test/synack0 -superclass TestSuite
- Test/synack0 instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2-lossy
- set test_ synack0_
- set guide_ "SYN packet dropped."
- Agent/TCPSink set ecn_syn_ false
- $self next pktTraceFile
- }
- Test/synack0 instproc run {} {
- global quiet
- $self instvar ns_ guide_ node_ guide_ testName_
- puts "Guide: $guide_"
- Agent/TCP set ecn_ 1
- Agent/TCP set window_ 8
- $self setTopo
- # Set up forward TCP connection
- set tcp1 [$ns_ create-connection TCP $node_(s1) TCPSink $node_(s4) 0]
- $tcp1 set window_ 8
- set ftp1 [$tcp1 attach-app FTP]
- $ns_ at 0.00 "$ftp1 produce 20"
- $self drop_pkt 1
- $self tcpDump $tcp1 5.0
- $ns_ at 10.0 "$self cleanupAll $testName_"
- $ns_ run
- }
- # SYN packet dropped, old parameters for RTO.
- Class Test/synack0A -superclass TestSuite
- Test/synack0A instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2-lossy
- set test_ synack0A_
- set guide_ "SYN packet dropped, old parameters for RTO."
- Agent/TCPSink set ecn_syn_ false
- Agent/TCP set rtxcur_init_ 6.0
- Agent/TCP set updated_rttvar_ false
- Test/synack0A instproc run {} [Test/synack0 info instbody run ]
- $self next pktTraceFile
- }
- # Four SYN packets dropped.
- Class Test/synack-4 -superclass TestSuite
- Test/synack-4 instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2
- set test_ synack-4_
- set guide_ "Four SYN packets dropped, max_connects_ not used."
- Agent/TCPSink set ecn_syn_ false
- Agent/TCP set max_connects_ -1;
- $self next pktTraceFile
- }
- Test/synack-4 instproc run {} {
- global quiet
- $self instvar ns_ guide_ node_ guide_ testName_
- puts "Guide: $guide_"
- Agent/TCP set ecn_ 1
- Agent/TCP set window_ 8
- $self setTopo
- $self set_lossylink
- # Set up forward TCP connection
- set tcp1 [$ns_ create-connection TCP $node_(s1) TCPSink $node_(s4) 0]
- $tcp1 set window_ 8
- set ftp1 [$tcp1 attach-app FTP]
- $ns_ at 0.00 "$ftp1 produce 20"
- $self drop_pkts {0 1 2 3}
- #$self tcpDump $tcp1 5.0
- $ns_ at 200.0 "$self cleanupAll $testName_"
- $ns_ run
- }
- # Four SYN packets dropped.
- Class Test/synack-4-maxconnect -superclass TestSuite
- Test/synack-4-maxconnect instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2
- set test_ synack-4-maxconnect_
- set guide_ "Four SYN packets dropped, max_connects_ 5."
- Agent/TCPSink set ecn_syn_ false
- Agent/TCP set max_connects_ 5;
- Test/synack-4-maxconnect instproc run {} [Test/synack-4 info instbody run ]
- $self next pktTraceFile
- }
- # Five SYN packets dropped.
- Class Test/synack-5-maxconnect -superclass TestSuite
- Test/synack-5-maxconnect instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2
- set test_ synack-5-maxconnect_
- set guide_ "Five SYN packets dropped, max_connects_ 5."
- Agent/TCPSink set ecn_syn_ false
- Agent/TCP set max_connects_ 5;
- $self next pktTraceFile
- }
- Test/synack-5-maxconnect instproc run {} {
- global quiet
- $self instvar ns_ guide_ node_ guide_ testName_
- puts "Guide: $guide_"
- Agent/TCP set ecn_ 1
- Agent/TCP set window_ 8
- $self setTopo
- $self set_lossylink
- # Set up forward TCP connection
- set tcp1 [$ns_ create-connection TCP $node_(s1) TCPSink $node_(s4) 0]
- $tcp1 set window_ 8
- set ftp1 [$tcp1 attach-app FTP]
- $ns_ at 0.00 "$ftp1 produce 20"
- $self drop_pkts {0 1 2 3 4}
- #$self tcpDump $tcp1 5.0
- $ns_ at 200.0 "$self cleanupAll $testName_"
- $ns_ run
- }
- # Fifteen SYN packets dropped.
- Class Test/synack-15 -superclass TestSuite
- Test/synack-15 instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2
- set test_ synack-15_
- set guide_ "Fifteen SYN packets dropped, max_connects not used."
- Agent/TCPSink set ecn_syn_ false
- Agent/TCP set max_connects_ -1;
- $self next pktTraceFile
- }
- Test/synack-15 instproc run {} {
- global quiet
- $self instvar ns_ guide_ node_ guide_ testName_
- puts "Guide: $guide_"
- Agent/TCP set ecn_ 1
- Agent/TCP set window_ 8
- $self setTopo
- $self set_lossylink
- # Set up forward TCP connection
- set tcp1 [$ns_ create-connection TCP $node_(s1) TCPSink $node_(s4) 0]
- $tcp1 set window_ 8
- set ftp1 [$tcp1 attach-app FTP]
- $ns_ at 0.00 "$ftp1 produce 20"
- $self drop_pkts {0 1 2 3 4 5 6 7 8 9 10 11 12 13 14}
- #$self tcpDump $tcp1 5.0
- $ns_ at 3000.0 "$self cleanupAll $testName_"
- $ns_ run
- }
- # SYN/ACK packet dropped.
- Class Test/synack1 -superclass TestSuite
- Test/synack1 instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2A-lossy
- set test_ synack1_
- set guide_ "SYN/ACK packet dropped."
- Agent/TCPSink set ecn_syn_ false
- $self next pktTraceFile
- }
- Test/synack1 instproc run {} {
- global quiet
- $self instvar ns_ guide_ node_ guide_ testName_
- puts "Guide: $guide_"
- Agent/TCP set ecn_ 1
- $self setTopo
- # Set up forward TCP connection
- set tcp1 [$ns_ create-connection TCP $node_(s1) TCPSink $node_(s4) 0]
- $tcp1 set window_ 8
- set ftp1 [$tcp1 attach-app FTP]
- $ns_ at 0.00 "$ftp1 produce 20"
- $self drop_pkt 1
- $self tcpDump $tcp1 5.0
- $ns_ at 5.0 "$self cleanupAll $testName_"
- $ns_ run
- }
- # SYN/ACK packet dropped, FullTCP
- Class Test/synack1_fulltcp -superclass TestSuite
- Test/synack1_fulltcp instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2A-lossy
- set test_ synack1_fulltcp_
- set guide_ "SYN/ACK packet dropped, FullTCP."
- Agent/TCPSink set ecn_syn_ false
- $self next pktTraceFile
- }
- Test/synack1_fulltcp instproc run {} {
- global quiet wrap wrap1
- $self instvar ns_ guide_ node_ guide_ testName_
- puts "Guide: $guide_"
- Agent/TCP set ecn_ 1
- Agent/TCP set window_ 8
- $self setTopo
- # Set up forward TCP connection
- set wrap $wrap1
- set tcp1 [new Agent/TCP/FullTcp/Sack]
- set sink [new Agent/TCP/FullTcp/Sack]
- $ns_ attach-agent $node_(s1) $tcp1
- $ns_ attach-agent $node_(s4) $sink
- $tcp1 set fid_ 0
- $sink set fid_ 0
- $ns_ connect $tcp1 $sink
- $sink listen ; # will figure out who its peer is
- set ftp1 [$tcp1 attach-app FTP]
- $ns_ at 0.00 "$ftp1 produce 5"
- set ftp2 [$sink attach-app FTP]
- $ns_ at 0.03 "$ftp2 produce 20"
- $self drop_pkt 1
- $self tcpDump $tcp1 5.0
- $ns_ at 5.0 "$self cleanupAll $testName_"
- $ns_ run
- }
- # SYN/ACK packet marked.
- Class Test/synack2 -superclass TestSuite
- Test/synack2 instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2A-lossy
- set test_ synack2_
- set guide_ "SYN/ACK packet marked."
- Agent/TCPSink set ecn_syn_ true
- $self next pktTraceFile
- }
- Test/synack2 instproc run {} {
- global quiet
- $self instvar ns_ guide_ node_ guide_ testName_
- puts "Guide: $guide_"
- Agent/TCP set ecn_ 1
- Agent/TCP set window_ 8
- $self setTopo
- # Set up forward TCP connection
- set tcp1 [$ns_ create-connection TCP $node_(s1) TCPSink $node_(s4) 0]
- $tcp1 set window_ 8
- set ftp1 [$tcp1 attach-app FTP]
- $ns_ at 0.00 "$ftp1 produce 20"
- $self mark_pkt 1
- # $self mark_pkt 10
- $self tcpDump $tcp1 5.0
- $ns_ at 2.0 "$self cleanupAll $testName_"
- $ns_ run
- }
- Class Test/synack2_fulltcp -superclass TestSuite
- Test/synack2_fulltcp instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2A-lossy
- set test_ synack2_fulltcp_
- set guide_ "SYN/ACK packet marked, FullTCP."
- Agent/TCPSink set ecn_syn_ true
- Agent/TCP/FullTcp set ecn_syn_ true
- $self next pktTraceFile
- }
- Test/synack2_fulltcp instproc run {} {
- global quiet wrap wrap1
- $self instvar ns_ guide_ node_ guide_ testName_
- puts "Guide: $guide_"
- Agent/TCP set ecn_ 1
- $self setTopo
- # Set up forward TCP connection
- set wrap $wrap1
- set tcp1 [new Agent/TCP/FullTcp/Sack]
- set sink [new Agent/TCP/FullTcp/Sack]
- $ns_ attach-agent $node_(s1) $tcp1
- $ns_ attach-agent $node_(s4) $sink
- $tcp1 set fid_ 0
- $sink set fid_ 0
- $ns_ connect $tcp1 $sink
- $sink listen ; # will figure out who its peer is
- set ftp1 [$tcp1 attach-app FTP]
- $ns_ at 0.00 "$ftp1 produce 5"
- set ftp2 [$sink attach-app FTP]
- $ns_ at 0.03 "$ftp2 produce 20"
- $self mark_pkt 1
- # $self mark_pkt 10
- $self tcpDump $tcp1 5.0
- $ns_ at 2.0 "$self cleanupAll $testName_"
- $ns_ run
- }
- Class Test/synack2a_fulltcp -superclass TestSuite
- Test/synack2a_fulltcp instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2A-lossy
- set test_ synack2a_fulltcp_
- set guide_ "SYN/ACK packet marked, FullTCP, wait."
- Agent/TCPSink set ecn_syn_ true
- Agent/TCP/FullTcp set ecn_syn_ true
- Agent/TCP/FullTcp set ecn_syn_wait_ true
- $self next pktTraceFile
- }
- Test/synack2a_fulltcp instproc run {} {
- global quiet wrap wrap1
- $self instvar ns_ guide_ node_ guide_ testName_
- puts "Guide: $guide_"
- Agent/TCP set ecn_ 1
- $self setTopo
- # Set up forward TCP connection
- set wrap $wrap1
- set tcp1 [new Agent/TCP/FullTcp/Sack]
- set sink [new Agent/TCP/FullTcp/Sack]
- $ns_ attach-agent $node_(s1) $tcp1
- $ns_ attach-agent $node_(s4) $sink
- $tcp1 set fid_ 0
- $sink set fid_ 0
- $ns_ connect $tcp1 $sink
- $sink listen ; # will figure out who its peer is
- set ftp1 [$tcp1 attach-app FTP]
- $ns_ at 0.00 "$ftp1 produce 5"
- set ftp2 [$sink attach-app FTP]
- $ns_ at 0.03 "$ftp2 produce 20"
- $self mark_pkt 1
- # $self mark_pkt 10
- $self tcpDump $tcp1 5.0
- $ns_ at 2.0 "$self cleanupAll $testName_"
- $ns_ run
- }
- # time 0: SYN packet sent by A
- # time 0.027277: SYN/ACK packet sent by B
- # time 0.032309: SYN/ACK packet marked
- # time 0.054555: ACK packet sent by A
- # time 0.054555: two request data packets sent by A
- # time 0.08558: ACK packets sent from B
- # time 0.112858: three data packets sent by A
- # time 0.146923: ACK packets sent by B
- # time 0.231832: data packets sent by B
- TestSuite runTest
- # E: Congestion Experienced in IP header.
- # N: ECN-Capable-Transport (ECT) in IP header.
- # C: ECN-Echo in TCP header.
- # A: Congestion Window Reduced (CWR) in TCP header.