test-suite-red.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-red.tcl,v 1.64 2007/09/25 05:30:57 sallyfloyd Exp $
- #
- # This test suite reproduces most of the tests from the following note:
- # Floyd, S.,
- # Ns Simulator Tests for Random Early Detection (RED), October 1996.
- # URL ftp://ftp.ee.lbl.gov/papers/redsims.ps.Z.
- #
- # To run all tests: test-all-red
- set dir [pwd]
- catch "cd tcl/test"
- source misc_simple.tcl
- remove-all-packet-headers ; # removes all except common
- add-packet-header Flags IP RTP TCP ; # hdrs reqd for validation test
-
- # 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
- 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:
- Queue/RED set bytes_ false
- # default changed on 10/11/2004.
- Queue/RED set queue_in_bytes_ false
- # default changed on 10/11/2004.
- 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
- Queue/RED set use_mark_p_ false
- # The default is being changed to true.
- 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
- TestSuite instproc finish file {
- global quiet PERL
- $self instvar ns_ tchan_ testName_
- exec $PERL ../../bin/getrc -s 2 -d 3 all.tr |
- $PERL ../../bin/raw2xg -a -s 0.01 -m 90 -t $file > temp.rands
- if {$quiet == "false"} {
- exec xgraph -bb -tk -nl -m -x time -y packets temp.rands &
- }
- ## now use default graphing tool to make a data file
- ## if so desired
- if { [info exists tchan_] && $quiet == "false" } {
- $self plotQueue $testName_
- }
- $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_
- }
- Class Topology
- Topology instproc node? num {
- $self instvar node_
- return $node_($num)
- }
- Class Topology/net2 -superclass Topology
- Topology/net2 instproc init 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]
- $self next
- $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) $node_(r2) orient left-up
- # force identical behavior to ns-1.
- # the recommended value for linterm is now 10
- # and is placed in the default file (3/31/97)
- [[$ns link $node_(r1) $node_(r2)] queue] set linterm_ 50
- [[$ns link $node_(r2) $node_(r1)] queue] set linterm_ 50
- }
- Class Topology/net3 -superclass Topology
- Topology/net3 instproc init 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]
- $self next
- $ns duplex-link $node_(s1) $node_(r1) 10Mb 0ms DropTail
- $ns duplex-link $node_(s2) $node_(r1) 10Mb 1ms DropTail
- $ns duplex-link $node_(r1) $node_(r2) 1.5Mb 10ms RED
- $ns duplex-link $node_(r2) $node_(r1) 1.5Mb 10ms RED
- $ns queue-limit $node_(r1) $node_(r2) 100
- $ns queue-limit $node_(r2) $node_(r1) 100
- $ns duplex-link $node_(s3) $node_(r2) 10Mb 2ms DropTail
- $ns duplex-link $node_(s4) $node_(r2) 10Mb 3ms 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
- }
- 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 mainSim {TCPStyle {window 15} } {
- $self instvar ns_ node_ testName_
- set stoptime 10.0
-
- if {$TCPStyle=="Reno"} {
- set sourceType TCP/Reno;
- set sinkType TCPSink;
- } elseif {$TCPStyle=="Sack1"} {
- set sourceType TCP/Sack1;
- set sinkType TCPSink/Sack1;
- }
- set tcp1 [$ns_ create-connection $sourceType $node_(s1) $sinkType $node_(s3) 0]
- set tcp2 [$ns_ create-connection $sourceType $node_(s2) $sinkType $node_(s3) 1]
- $tcp1 set window_ $window
- $tcp2 set window_ $window
- set ftp1 [$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_"
- }
- Class Test/red1 -superclass TestSuite
- Test/red1 instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2
- set test_ red1
- set guide_ "RED, without ECN."
- $self next
- }
- Test/red1 instproc run {} {
- $self instvar ns_ node_ testName_ net_ guide_
- puts "Guide: $guide_"
- $self setTopo
- $self mainSim Reno
- $ns_ run
- }
- Class Test/ecn -superclass TestSuite
- Test/ecn instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- Agent/TCP set old_ecn_ 1
- set net_ net2
- set test_ ecn
- set guide_ "RED with ECN."
- $self next
- }
- Test/ecn instproc run {} {
- $self instvar ns_ node_ testName_ guide_
- puts "Guide: $guide_"
- $self setTopo
- set stoptime 10.0
- set redq [[$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
- }
- # "Red2" changes some of the RED gateway parameters.
- # This should give worse performance than "red1".
- Class Test/red2 -superclass TestSuite
- Test/red2 instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2
- set test_ red2
- set guide_ "RED, without ECN, with different parameters."
- $self next
- }
- Test/red2 instproc run {} {
- $self instvar ns_ node_ testName_ guide_
- puts "Guide: $guide_"
- $self setTopo
- set stoptime 10.0
- set redq [[$ns_ link $node_(r1) $node_(r2)] queue]
- $redq set thresh_ 5
- $redq set maxthresh_ 10
- $redq set q_weight_ 0.003
-
- set tcp1 [$ns_ create-connection TCP/Reno $node_(s1) TCPSink $node_(s3) 0]
- $tcp1 set window_ 15
- set tcp2 [$ns_ create-connection TCP/Reno $node_(s2) TCPSink $node_(s3) 1]
- $tcp2 set window_ 15
- set ftp1 [$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
- }
- # The queue is measured in "packets".
- Class Test/red_twoway -superclass TestSuite
- Test/red_twoway instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2
- set test_ red_twoway
- set guide_ "RED, two-way traffic, queue measured in packets."
- $self next
- }
- Test/red_twoway instproc run {} {
- $self instvar ns_ node_ testName_ guide_
- puts "Guide: $guide_"
- $self setTopo
- set stoptime 10.0
-
- set tcp1 [$ns_ create-connection TCP/Reno $node_(s1) TCPSink $node_(s3) 0]
- $tcp1 set window_ 15
- set tcp2 [$ns_ create-connection TCP/Reno $node_(s2) TCPSink $node_(s4) 1]
- $tcp2 set window_ 15
- set ftp1 [$tcp1 attach-app FTP]
- set ftp2 [$tcp2 attach-app FTP]
- set tcp3 [$ns_ create-connection TCP/Reno $node_(s3) TCPSink $node_(s1) 2]
- $tcp3 set window_ 15
- set tcp4 [$ns_ create-connection TCP/Reno $node_(s4) TCPSink $node_(s2) 3]
- $tcp4 set window_ 15
- set ftp3 [$tcp3 attach-app FTP]
- set telnet1 [$tcp4 attach-app Telnet] ; $telnet1 set interval_ 0
- $self enable_tracequeue $ns_
- $ns_ at 0.0 "$ftp1 start"
- $ns_ at 2.0 "$ftp2 start"
- $ns_ at 3.5 "$ftp3 start"
- $ns_ at 1.0 "$telnet1 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
- }
- # The queue is measured in "bytes".
- Class Test/red_twowaybytes -superclass TestSuite
- Test/red_twowaybytes instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2
- set test_ red_twowaybytes
- set guide_ "RED, two-way traffic, queue measured in bytes."
- Queue/RED set ns1_compat_ true
- $self next
- }
- Test/red_twowaybytes instproc run {} {
- $self instvar ns_ node_ testName_ guide_
- puts "Guide: $guide_"
- $self setTopo
- set stoptime 10.0
- set redq [[$ns_ link $node_(r1) $node_(r2)] queue]
- $redq set bytes_ true
- $redq set queue_in_bytes_ true
-
- set tcp1 [$ns_ create-connection TCP/Reno $node_(s1) TCPSink $node_(s3) 0]
- $tcp1 set window_ 15
- set tcp2 [$ns_ create-connection TCP/Reno $node_(s2) TCPSink $node_(s4) 1]
- $tcp2 set window_ 15
- set ftp1 [$tcp1 attach-app FTP]
- set ftp2 [$tcp2 attach-app FTP]
- set tcp3 [$ns_ create-connection TCP/Reno $node_(s3) TCPSink $node_(s1) 2]
- $tcp3 set window_ 15
- set tcp4 [$ns_ create-connection TCP/Reno $node_(s4) TCPSink $node_(s2) 3]
- $tcp4 set window_ 15
- set ftp3 [$tcp3 attach-app FTP]
- set telnet1 [$tcp4 attach-app Telnet] ; $telnet1 set interval_ 0
- $self enable_tracequeue $ns_
- $ns_ at 0.0 "$ftp1 start"
- $ns_ at 2.0 "$ftp2 start"
- $ns_ at 3.5 "$ftp3 start"
- $ns_ at 1.0 "$telnet1 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 create_flowstats {} {
- global flowfile flowchan
- $self instvar ns_ node_ r1fm_
- set r1fm_ [$ns_ makeflowmon Fid]
- set flowchan [open $flowfile w]
- $r1fm_ attach $flowchan
- $ns_ attach-fmon [$ns_ link $node_(r1) $node_(r2)] $r1fm_ 1
- }
- #
- # awk code used to produce:
- # x axis: # arrivals for this flow+category / # total arrivals [bytes]
- # y axis: # drops for this flow+category / # drops this category [pkts]
- # (verified compatible for ns2 - kfall, 10/30/97)
- TestSuite instproc unforcedmakeawk { } {
- set awkCode {
- {
- if ($2 != prev) {
- print " "; print ""flow " $2;
- if ($13 > 0 && $14 > 0) {
- print 100.0 * $9/$13, 100.0 * $10 / $14
- }
- prev = $2;
- } else if ($13 > 0 && $14 > 0) {
- print 100.0 * $9 / $13, 100.0 * $10 / $14
- }
- }
- }
- return $awkCode
- }
- #
- # awk code used to produce:
- # x axis: # arrivals for this flow+category / # total arrivals [bytes]
- # y axis: # drops for this flow+category / # drops this category [bytes]
- # (modified for compatibility with ns2 flowmon - kfall, 10/30/97)
- TestSuite instproc forcedmakeawk { } {
- set awkCode {
- BEGIN { print ""flow 0" }
- {
- if ($2 != prev) {
- print " "; print ""flow " $2;
- if ($13 > 0 && ($17 - $15) > 0) {
- print 100.0 * $9/$13, 100.0 * ($19 - $11) / ($17 - $15);
- }
- prev = $2;
- } else if ($13 > 0 && ($17 - $15) > 0) {
- print 100.0 * $9 / $13, 100.0 * ($19 - $11) / ($17 - $15)
- }
- }
- }
- return $awkCode
- }
- #
- # awk code used to produce:
- # x axis: # arrivals for this flow+category / # total arrivals [bytes]
- # y axis: # drops for this flow / # drops [pkts and bytes combined]
- TestSuite instproc allmakeawk { } {
- set awkCode {
- BEGIN {prev=-1; tot_bytes=0; tot_packets=0; forced_total=0; unforced_total=0}
- {
- if ($5 != prev) {
- print " "; print ""flow ",$5;
- prev = $5
- }
- tot_bytes = $19-$11;
- forced_total= $16-$14;
- tot_packets = $10;
- tot_arrivals = $9;
- unforced_total = $14;
- if (unforced_total + forced_total > 0) {
- if ($14 > 0) {
- frac_packets = tot_packets/$14;
- }
- else { frac_packets = 0;}
- if ($17-$15 > 0) {
- frac_bytes = tot_bytes/($17-$15);
- }
- else {frac_bytes = 0;}
- if ($13 > 0) {
- frac_arrivals = tot_arrivals/$13;
- }
- else {frac_arrivals = 0;}
- if (frac_packets + frac_bytes > 0) {
- unforced_total_part = frac_packets * unforced_total / ( unforced_total + forced_total)
- forced_total_part = frac_bytes * forced_total / ( unforced_total + forced_total)
- print 100.0 * frac_arrivals, 100.0 * ( unforced_total_part +forced_total_part)
- }
- }
- }
- }
- return $awkCode
- }
- TestSuite instproc create_flow_graph { graphtitle graphfile } {
- global flowfile quiet
- $self instvar awkprocedure_
- if {$quiet == "false"} {
- puts "awkprocedure: $awkprocedure_"
- }
- set tmpfile1 /tmp/fg1[pid]
- set tmpfile2 /tmp/fg2[pid]
- exec rm -f $graphfile
- set outdesc [open $graphfile w]
- #
- # this next part is xgraph specific
- #
- puts $outdesc "TitleText: $graphtitle"
- puts $outdesc "Device: Postscript"
- exec rm -f $tmpfile1 $tmpfile2
- if {$quiet == "false"} {
- puts "writing flow xgraph data to $graphfile..."
- }
- exec sort -n -k2 -k1 -o $flowfile $flowfile
- exec awk [$self $awkprocedure_] $flowfile >@ $outdesc
- close $outdesc
- }
- TestSuite instproc finish_flows testname {
- global flowgraphfile flowfile flowchan quiet
- $self instvar r1fm_
- $r1fm_ dump
- close $flowchan
- $self create_flow_graph $testname $flowgraphfile
- if {$quiet == "false"} {
- puts "running xgraph..."
- }
- exec cp $flowgraphfile temp.rands
- if {$quiet == "false"} {
- exec xgraph -bb -tk -nl -m -lx 0,100 -ly 0,100 -x "% of data bytes" -y "% of discards" $flowgraphfile &
- }
- exit 0
- }
- TestSuite instproc new_tcp { startTime source dest window fid verbose size } {
- $self instvar ns_
- set tcp [$ns_ create-connection TCP/Reno $source TCPSink $dest $fid]
- $tcp set window_ $window
- if {$size > 0} {$tcp set packetSize_ $size }
- set ftp [$tcp attach-app FTP]
- $ns_ at $startTime "$ftp start"
- if {$verbose == "1"} {
- $self tcpDumpAll $tcp 20.0 $fid
- }
- }
- TestSuite instproc new_cbr { startTime source dest pktSize interval fid } {
- $self instvar ns_
- set s_agent [new Agent/UDP]
- set d_agent [new Agent/LossMonitor]
- $s_agent set fid_ $fid
- $d_agent set fid_ $fid
- set cbr [new Application/Traffic/CBR]
- $cbr attach-agent $s_agent
- $ns_ attach-agent $source $s_agent
- $ns_ attach-agent $dest $d_agent
- $ns_ connect $s_agent $d_agent
- if {$pktSize > 0} {
- $cbr set packetSize_ $pktSize
- }
- $cbr set rate_ [expr 8 * $pktSize / $interval]
- $ns_ at $startTime "$cbr start"
- }
- TestSuite instproc dumpflows interval {
- $self instvar dumpflows_inst_ ns_ r1fm_
- $self instvar awkprocedure_ dump_pthresh_
- global flowchan
- if ![info exists dumpflows_inst_] {
- set dumpflows_inst_ 1
- $ns_ at 0.0 "$self dumpflows $interval"
- return
- }
- if { $awkprocedure_ == "unforcedmakeawk" } {
- set pcnt [$r1fm_ set epdrops_]
- } elseif { $awkprocedure_ == "forcedmakeawk" } {
- set pcnt [expr [$r1fm_ set pdrops_] - [$r1fm_ set epdrops_]]
- } elseif { $awkprocedure_ == "allmakeawk" } {
- set pcnt [$r1fm_ set pdrops_]
- } else {
- puts stderr "unknown handling of flow dumps!"
- exit 1
- }
- if { $pcnt >= $dump_pthresh_ } {
- $r1fm_ dump
- flush $flowchan
- foreach f [$r1fm_ flows] {
- $f reset
- }
- $r1fm_ reset
- set interval 2.0
- } else {
- set interval 1.0
- }
- $ns_ at [expr [$ns_ now] + $interval] "$self dumpflows $interval"
- }
- TestSuite instproc droptest { stoptime } {
- $self instvar ns_ node_ testName_ r1fm_ awkprocedure_
- set forwq [[$ns_ link $node_(r1) $node_(r2)] queue]
- set revq [[$ns_ link $node_(r2) $node_(r1)] queue]
- $forwq set mean_pktsize_ 1000
- $revq set mean_pktsize_ 1000
- $forwq set linterm_ 10
- $revq set linterm_ 10
- $forwq set limit_ 100
- $revq set limit_ 100
- $self create_flowstats
- $self dumpflows 10.0
- $forwq set bytes_ true
- $forwq set queue_in_bytes_ true
- $forwq set wait_ false
- $self new_tcp 1.0 $node_(s1) $node_(s3) 100 1 1 1000
- $self new_tcp 1.2 $node_(s2) $node_(s4) 100 2 1 50
- $self new_cbr 1.4 $node_(s1) $node_(s4) 190 0.003 3
- $ns_ at $stoptime "$self finish_flows $testName_"
- $ns_ run
- }
- Class Test/flows_unforced -superclass TestSuite
- Test/flows_unforced instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2
- set test_ flows_unforced
- set guide_ "RED, sending rate vs. packet drop rate, unforced packet drops."
- Queue/RED set gentle_ false
- $self next noTraceFiles; # zero here means don't product all.tr
- }
- Test/flows_unforced instproc run {} {
- $self instvar ns_ node_ testName_ r1fm_ awkprocedure_ guide_
- puts "Guide: $guide_"
- $self instvar dump_pthresh_
- $self setTopo
- set stoptime 500.0
- set testName_ test_flows_unforced
- set awkprocedure_ unforcedmakeawk
- set dump_pthresh_ 100
- $self droptest $stoptime
- }
- Class Test/flows_forced -superclass TestSuite
- Test/flows_forced instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2
- set test_ flows_forced
- set guide_ "RED, sending rate vs. packet drop rate, forced packet drops."
- Queue/RED set gentle_ false
- $self next noTraceFiles; # zero here means don't product all.tr
- }
- Test/flows_forced instproc run {} {
- $self instvar ns_ node_ testName_ r1fm_ awkprocedure_ guide_
- puts "Guide: $guide_"
- $self instvar dump_pthresh_
- $self setTopo
-
- set stoptime 500.0
- set testName_ test_flows_forced
- set awkprocedure_ forcedmakeawk
- set dump_pthresh_ 100
- $self droptest $stoptime
- }
- Class Test/flows_combined -superclass TestSuite
- Test/flows_combined instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2
- set test_ flows_combined
- set guide_ "RED, sending rate vs. packet drop rate, all packet drops."
- Queue/RED set gentle_ false
- $self next noTraceFiles; # zero here means don't product all.tr
- }
- Test/flows_combined instproc run {} {
- $self instvar ns_ node_ testName_ r1fm_ awkprocedure_ guide_
- $self instvar dump_pthresh_
- puts "Guide: $guide_"
- $self setTopo
-
- set stoptime 500.0
- set testName_ test_flows_combined
- set awkprocedure_ allmakeawk
- set dump_pthresh_ 100
- $self droptest $stoptime
- }
- #--------------------------------------------------------------
- TestSuite instproc printall { fmon } {
- puts "total_drops [$fmon set pdrops_] total_packets [$fmon set pdepartures_]"
- }
- Class Test/ungentle -superclass TestSuite
- Test/ungentle instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net3
- set test_ ungentle
- set guide_ "RED, not gentle."
- Queue/RED set gentle_ false
- $self next
- }
- Test/ungentle instproc run {} {
- $self instvar ns_ node_ testName_ net_ guide_
- puts "Guide: $guide_"
- $self setTopo
- Agent/TCP set packetSize_ 1500
- Agent/TCP set window_ 50
- Queue/RED set bytes_ true
- Agent/TCP set timerfix_ false
- # The default is being changed to true.
- set stoptime 40.0
- set slink [$ns_ link $node_(r1) $node_(r2)]; # link to collect stats on
- set fmon [$ns_ makeflowmon Fid]
- #$ns_ attach-fmon $slink $fmon
- $ns_ attach-fmon $slink $fmon 1
-
- set tcp1 [$ns_ create-connection TCP/Sack1 $node_(s1) TCPSink/Sack1 $node_(s3) 0]
- set tcp2 [$ns_ create-connection TCP/Sack1 $node_(s2) TCPSink/Sack1 $node_(s3) 1]
- $tcp2 set packetSize_ 1000
- set tcp3 [$ns_ create-connection TCP/Sack1 $node_(s1) TCPSink/Sack1 $node_(s3) 2]
- set tcp4 [$ns_ create-connection TCP/Sack1 $node_(s2) TCPSink/Sack1 $node_(s3) 3]
- $tcp4 set packetSize_ 512
- set tcp5 [$ns_ create-connection TCP/Sack1 $node_(s1) TCPSink/Sack1 $node_(s3) 4]
- set tcp6 [$ns_ create-connection TCP/Sack1 $node_(s2) TCPSink/Sack1 $node_(s3) 5]
- set tcp7 [$ns_ create-connection TCP/Sack1 $node_(s4) TCPSink/Sack1 $node_(s2) 6]
- set tcp8 [$ns_ create-connection TCP/Sack1 $node_(s3) TCPSink/Sack1 $node_(s1) 7]
- $tcp8 set packetSize_ 2000
- set ftp1 [$tcp1 attach-app FTP]
- set ftp2 [$tcp2 attach-app FTP]
- set ftp3 [$tcp3 attach-app FTP]
- set ftp4 [$tcp4 attach-app FTP]
- set ftp5 [$tcp5 attach-app FTP]
- set ftp6 [$tcp6 attach-app FTP]
- set ftp7 [$tcp7 attach-app FTP]
- set ftp8 [$tcp8 attach-app FTP]
- $self enable_tracequeue $ns_
- $ns_ at 0.0 "$ftp1 start"
- $ns_ at 1.0 "$ftp2 start"
- $ns_ at 5.0 "$ftp3 start"
- $ns_ at 6.0 "$ftp4 start"
- $ns_ at 9.0 "$ftp5 start"
- $ns_ at 10.0 "$ftp6 start"
- $ns_ at 13.0 "$ftp7 start"
- $ns_ at 14.0 "$ftp8 start"
- $ns_ at $stoptime "$self printall $fmon"
- $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
- }
- Class Test/gentle -superclass TestSuite
- Test/gentle instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net3
- set test_ gentle
- set guide_ "RED, gentle."
- Queue/RED set gentle_ true
- Test/gentle instproc run {} [Test/ungentle info instbody run ]
- $self next
- }
- Class Test/gentleEcn -superclass TestSuite
- Test/gentleEcn instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- Agent/TCP set ecn_ 1
- set net_ net3
- set test_ gentleEcn
- set guide_ "RED, gentle, with ECN."
- Queue/RED set gentle_ true
- Test/gentleEcn instproc run {} [Test/ungentle info instbody run ]
- $self next
- }
- Class Test/gentleEcn1 -superclass TestSuite
- Test/gentleEcn1 instproc init {} {
- $self instvar net_ test_ guide_
- Queue/RED set setbit_ true
- Agent/TCP set ecn_ 1
- set net_ net3
- set test_ gentleEcn1
- set guide_ "RED, gentle, with ECN, with mark_p_ set to 0.1."
- Queue/RED set gentle_ true
- Queue/RED set mark_p_ 0.1
- Queue/RED set use_mark_p_ true
- Test/gentleEcn1 instproc run {} [Test/ungentle info instbody run ]
- $self next
- }
- Class Test/ungentleBadParams -superclass TestSuite
- Test/ungentleBadParams instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net3
- set test_ ungentleBadParams
- set guide_ "RED, not gentle, bad RED parameters."
- Queue/RED set gentle_ false
- Queue/RED set linterm_ 50
- Queue/RED set maxthresh_ 10
- Test/ungentleBadParams instproc run {} [Test/ungentle info instbody run ]
- $self next
- }
- Class Test/gentleBadParams -superclass TestSuite
- Test/gentleBadParams instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net3
- set test_ gentleBadParams
- Queue/RED set gentle_ true
- set guide_ "RED, gentle, bad RED parameters."
- Queue/RED set linterm_ 50
- Queue/RED set maxthresh_ 10
- Test/gentleBadParams instproc run {} [Test/ungentle info instbody run ]
- $self next
- }
- Class Test/q_weight -superclass TestSuite
- Test/q_weight instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2
- set test_ q_weight
- set guide_ "RED, q_weight set to 0.002."
- $self next
- }
- Test/q_weight instproc run {} {
- $self instvar ns_ node_ testName_ net_ guide_
- puts "Guide: $guide_"
- $self setTopo
- $self mainSim Sack1
- $ns_ run
- }
- Class Test/q_weight_auto -superclass TestSuite
- Test/q_weight_auto instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net2
- set test_ q_weight_auto
- Queue/RED set q_weight_ 0.0
- set guide_ "RED, q_weight and maxthresh_ set automatically."
- Queue/RED set maxthresh_ 0
- Test/q_weight_auto instproc run {} [Test/q_weight info instbody run ]
- $self next
- }
- # Class Test/q_weight1 -superclass TestSuite
- # Test/q_weight1 instproc init {} {
- # $self instvar net_ test_ guide_
- # set net_ net2
- # set test_ q_weight
- # $self next
- # }
- # Test/q_weight1 instproc run {} {
- # $self instvar ns_ node_ testName_ net_
- # $self setTopo
- # $ns_ at 0.0 "$ns_ bandwidth $node_(r1) $node_(r2) 100Mb duplex"
- # $self mainSim Sack1 100
- # $ns_ run
- # }
- #
- # Class Test/q_weight1_auto -superclass TestSuite
- # Test/q_weight1_auto instproc init {} {
- # $self instvar net_ test_ guide_
- # set net_ net2
- # set test_ q_weight1_auto
- # Queue/RED set q_weight_ 0.0
- # Queue/RED set maxthresh_ 0
- # Test/q_weight1_auto instproc run {} [Test/q_weight1 info instbody run ]
- # $self next
- # }
- ##
- ## Packets are marked instead of dropped if the average queue is
- ## less than maxthresh.
- ##
- Class Test/congested -superclass TestSuite
- Test/congested instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net3
- set test_ congested
- set guide_ "RED, not gentle, ECN."
- Queue/RED set use_mark_p_ false
- $self next
- }
- Test/congested instproc run {} {
- $self instvar ns_ node_ testName_ net_ guide_
- puts "Guide: $guide_"
- Agent/TCP set packetSize_ 1500
- Agent/TCP set window_ 75
- Agent/TCP set ecn_ 1
- Queue/RED set bytes_ true
- Queue/RED set gentle_ false
- Queue/RED set setbit_ true
- $self setTopo
- # The default is being changed to true.
- set stoptime 5.0
- set slink [$ns_ link $node_(r1) $node_(r2)]; # link to collect stats on
- set fmon [$ns_ makeflowmon Fid]
- #$ns_ attach-fmon $slink $fmon
- $ns_ attach-fmon $slink $fmon 1
-
- set tcp1 [$ns_ create-connection TCP/Sack1 $node_(s1) TCPSink/Sack1 $node_(s3) 0]
- set ftp1 [$tcp1 attach-app FTP]
- $self enable_tracequeue $ns_
- $ns_ at 0.0 "$ftp1 start"
- $ns_ at $stoptime "$self printall $fmon"
- $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
- }
- ##
- ## Packets are marked instead of dropped if the buffer is not full
- ##
- Class Test/congested_mark_p -superclass TestSuite
- Test/congested_mark_p instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net3
- set test_ congested_mark_p
- set guide_ "RED, not gentle, ECN. Packets not dropped unless buffer full."
- Queue/RED set mark_p_ 2.0
- Queue/RED set use_mark_p_ true
- Test/congested_mark_p instproc run {} [Test/congested info instbody run ]
- $self next
- }
- ##
- ## Packets are marked instead of dropped if the drop probability
- ## is less than one.
- ##
- Class Test/congested1_mark_p -superclass TestSuite
- Test/congested1_mark_p instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net3
- set test_ congested1_mark_p
- set guide_ "RED, gentle, ECN. Packets sometimes dropped instead of marked."
- Queue/RED set mark_p_ 1.0
- Queue/RED set use_mark_p_ true
- $self next
- }
- Test/congested1_mark_p instproc run {} {
- $self instvar ns_ node_ testName_ net_ guide_
- puts "Guide: $guide_"
- Agent/TCP set packetSize_ 1500
- Agent/TCP set window_ 1000
- Agent/TCP set ecn_ 1
- Queue/RED set bytes_ true
- Queue/RED set gentle_ true
- Queue/RED set setbit_ true
- $self setTopo
- # The default is being changed to true.
- set stoptime 5.0
- set slink [$ns_ link $node_(r1) $node_(r2)]; # link to collect stats on
- set fmon [$ns_ makeflowmon Fid]
- #$ns_ attach-fmon $slink $fmon
- $ns_ attach-fmon $slink $fmon 1
-
- set tcp1 [$ns_ create-connection TCP/Sack1 $node_(s1) TCPSink/Sack1 $node_(s3) 0]
- set ftp1 [$tcp1 attach-app FTP]
- set tcp2 [$ns_ create-connection TCP/Sack1 $node_(s2) TCPSink/Sack1 $node_(s4) 0]
- set ftp2 [$tcp2 attach-app FTP]
- $self enable_tracequeue $ns_
- $ns_ at 0.0 "$ftp1 start"
- $ns_ at 0.2 "$ftp2 start"
- $ns_ at $stoptime "$self printall $fmon"
- $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
- }
- ##
- ## Packets are marked instead of dropped if the buffer is not full.
- ##
- Class Test/congested2_mark_p -superclass TestSuite
- Test/congested2_mark_p instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net3
- set test_ congested2_mark_p
- set guide_ "RED, gentle, ECN. Packets not dropped unless buffer full."
- Queue/RED set mark_p_ 2.0
- Queue/RED set use_mark_p_ true
- Test/congested2_mark_p instproc run {} [Test/congested1_mark_p info instbody run ]
- $self next
- }
- TestSuite runTest