test-suite-LimTransmit.tcl
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上传日期:2015-12-11
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通讯编程
开发平台:
Visual C++
- #
- # Copyright (c) 1995 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-LimTransmit.tcl,v 1.14 2006/08/13 04:45:59 sallyfloyd Exp $
- #
- # To view a list of available tests to run with this script:
- # ns test-suite-tcpVariants.tcl
- #
- source misc_simple.tcl
- remove-all-packet-headers ; # removes all except common
- add-packet-header Flags IP TCP ; # hdrs reqd for TCP
- 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
- Agent/TCP set minrto_ 1
- # default changed on 10/14/2004.
- Agent/TCP set singledup_ 0
- # The default is being changed to 1
- Trace set show_tcphdr_ 1
- Agent/TCP set useHeaders_ false
- # The default is being changed to useHeaders_ true.
- Agent/TCP set tcpTick_ 0.5
- ## First scenaio: maxpkts 15, droppkt 4.
- ## For the paper: droppkt 2.
- set wrap 90
- set wrap1 [expr 90 * 512 + 40]
- Class Topology
- Topology instproc node? num {
- $self instvar node_
- return $node_($num)
- }
- #
- # Links1 uses 8Mb, 5ms feeders, and a 800Kb 10ms bottleneck.
- # Queue-limit on bottleneck is 2 packets.
- #
- Class Topology/net4 -superclass Topology
- Topology/net4 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]
- $self next
- $ns duplex-link $node_(s1) $node_(r1) 8Mb 0ms DropTail
- $ns duplex-link $node_(s2) $node_(r1) 8Mb 0ms DropTail
- $ns duplex-link $node_(r1) $node_(k1) 800Kb 100ms DropTail
- # 800Kb/sec = 100 pkts/sec = 20 pkts/200 ms.
- $ns queue-limit $node_(r1) $node_(k1) 8
- $ns queue-limit $node_(k1) $node_(r1) 8
- $self instvar lossylink_
- set lossylink_ [$ns link $node_(r1) $node_(k1)]
- set em [new ErrorModule Fid]
- set errmodel [new ErrorModel/Periodic]
- $errmodel unit pkt
- $lossylink_ errormodule $em
- }
- TestSuite instproc finish file {
- global quiet wrap PERL
- exec $PERL ../../bin/set_flow_id -m all.tr > t
- exec $PERL ../../bin/getrc -s 0 -d 2 t > t1
- exec $PERL ../../bin/raw2xg -c -a -s 0.01 -m $wrap -t $file t1 > temp.rands
- exec $PERL ../../bin/getrc -s 2 -d 0 t > t2
- exec $PERL ../../bin/raw2xg -c -a -s 0.01 -m $wrap -t $file t2 > temp1.rands
- exec $PERL ../../bin/getrc -s 2 -d 3 t |
- $PERL ../../bin/raw2xg -c -d -s 0.01 -m $wrap -t $file > temp2.rands
- #exec $PERL ../../bin/set_flow_id -s all.tr |
- # $PERL ../../bin/getrc -s 2 -d 3 |
- # $PERL ../../bin/raw2xg -s 0.01 -m $wrap -t $file > temp.rands
- if {$quiet == "false"} {
- exec xgraph -bb -tk -nl -m -x time -y packets temp.rands
- temp1.rands temp2.rands &
- }
- ## now use default graphing tool to make a data file
- ## if so desired
- # exec csh gnuplotC.com temp.rands temp1.rands temp2.rands $file
- exit 0
- }
- TestSuite instproc printtimers { tcp time} {
- global quiet
- if {$quiet == "false"} {
- puts "time: $time sRTT(in ticks): [$tcp set srtt_]/8 RTTvar(in ticks): [$tcp set rttvar_]/4 backoff: [$tcp set backoff_]"
- }
- }
- TestSuite instproc printtimersAll { tcp time interval } {
- $self instvar dump_inst_ ns_
- if ![info exists dump_inst_($tcp)] {
- set dump_inst_($tcp) 1
- $ns_ at $time "$self printtimersAll $tcp $time $interval"
- return
- }
- set newTime [expr [$ns_ now] + $interval]
- $ns_ at $time "$self printtimers $tcp $time"
- $ns_ at $newTime "$self printtimersAll $tcp $newTime $interval"
- }
- TestSuite instproc emod {} {
- $self instvar topo_
- $topo_ instvar lossylink_
- set errmodule [$lossylink_ errormodule]
- return $errmodule
- }
- TestSuite instproc drop_pkts { pkts {ecn 0}} {
- $self instvar ns_
- set emod [$self emod]
- set errmodel1 [new ErrorModel/List]
- if {$ecn == "ECN"} {
- $errmodel1 set markecn_ true
- }
- $errmodel1 droplist $pkts
- $emod insert $errmodel1
- $emod bind $errmodel1 1
- }
- TestSuite instproc setup { tcptype list {ecn 0}} {
- global wrap wrap1
- $self instvar ns_ node_ testName_ guide_
- $self setTopo
- puts "Guide: $guide_"
- Agent/TCP set bugFix_ false
- if {$ecn == "ECN"} {
- Agent/TCP set ecn_ 1
- }
- set fid 1
- # Set up TCP connection
- if {$tcptype == "Tahoe"} {
- set tcp1 [$ns_ create-connection TCP $node_(s1)
- TCPSink/DelAck $node_(k1) $fid]
- } elseif {$tcptype == "Sack1"} {
- set tcp1 [$ns_ create-connection TCP/Sack1 $node_(s1)
- TCPSink/Sack1/DelAck $node_(k1) $fid]
- } else {
- set tcp1 [$ns_ create-connection TCP/$tcptype $node_(s1)
- TCPSink/DelAck $node_(k1) $fid]
- }
- $tcp1 set window_ 28
- set ftp1 [$tcp1 attach-app FTP]
- $ns_ at 0.0 "$ftp1 produce 7"
- $self tcpDump $tcp1 5.0
- $self drop_pkts $list $ecn
- #$self traceQueues $node_(r1) [$self openTrace 6.0 $testName_]
- $ns_ at 6.0 "$self cleanupAll $testName_"
- $ns_ run
- }
- # Definition of test-suite tests
- ###################################################
- ## One drop
- ###################################################
- Class Test/onedrop_sack -superclass TestSuite
- Test/onedrop_sack instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net4
- set test_ onedrop_sack
- set guide_ "Sack TCP, no Limited Transmit, one packet drop, so timeout."
- $self next pktTraceFile
- }
- Test/onedrop_sack instproc run {} {
- $self setup Sack1 {1}
- }
- Class Test/onedrop_SA_sack -superclass TestSuite
- Test/onedrop_SA_sack instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net4
- set test_ onedrop_SA_sack
- set guide_ "Sack TCP, Limited Transmit, one packet drop, so Fast Retransmit."
- Agent/TCP set singledup_ 1
- Test/onedrop_SA_sack instproc run {} [Test/onedrop_sack info instbody run ]
- $self next pktTraceFile
- }
- Class Test/onedrop_ECN_sack -superclass TestSuite
- Test/onedrop_ECN_sack instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net4
- set test_ onedrop_ECN_sack
- set guide_ "Sack TCP, ECN, one packet drop, so Fast Retransmit."
- Agent/TCP set ecn_ 1
- $self next pktTraceFile
- }
- Test/onedrop_ECN_sack instproc run {} {
- $self setup Sack1 {1} ECN
- }
- Class Test/nodrop_sack -superclass TestSuite
- Test/nodrop_sack instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net4
- set test_ nodrop_sack
- set guide_ "Sack TCP with no packet drops, for comparison."
- $self next pktTraceFile
- }
- Test/nodrop_sack instproc run {} {
- $self setup Sack1 {1000}
- }
- TestSuite runTest