test-suite-oddBehaviors.tcl
上传用户:rrhhcc
上传日期:2015-12-11
资源大小:54129k
文件大小:9k
源码类别:
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-oddBehaviors.tcl,v 1.16 2007/10/24 02:13:50 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 validation test
- # FOR UPDATING GLOBAL DEFAULTS:
- Agent/TCP set singledup_ 0
- 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)
- }
- #
- # 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
- $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 -s all.tr |
- $PERL ../../bin/getrc -s 2 -d 3 |
- $PERL ../../bin/raw2xg -s 0.01 -m $wrap -t $file > temp.rands
- exec $PERL ../../bin/set_flow_id -d all.tr |
- $PERL ../../bin/getrc -s 3 -d 2 |
- $PERL ../../bin/raw2xg -a -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
- 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 {
- $self instvar ns_
- set emod [$self emod]
- set errmodel1 [new ErrorModel/List]
- $errmodel1 droplist $pkts
- $emod insert $errmodel1
- $emod bind $errmodel1 1
- }
- TestSuite instproc setup {tcptype list} {
- global wrap wrap1
- $self instvar ns_ node_ testName_ guide_
- $self setTopo
- Agent/TCP set bugFix_ false
- puts "Guide: $guide_"
- set fid 1
- # Set up TCP connection
- if {$tcptype == "Tahoe"} {
- set tcp1 [$ns_ create-connection TCP $node_(s1)
- TCPSink $node_(k1) $fid]
- } elseif {$tcptype == "Sack1"} {
- set tcp1 [$ns_ create-connection TCP/Sack1 $node_(s1)
- TCPSink/Sack1 $node_(k1) $fid]
- } elseif {$tcptype == "Fack"} {
- set tcp1 [$ns_ create-connection TCP/Fack $node_(s1)
- TCPSink/Sack1 $node_(k1) $fid]
- } elseif {$tcptype == "SackRH"} {
- set tcp1 [$ns_ create-connection TCP/SackRH $node_(s1)
- TCPSink/Sack1 $node_(k1) $fid]
- } elseif {$tcptype == "FullTcp"} {
- set wrap $wrap1
- set tcp1 [new Agent/TCP/FullTcp]
- set sink [new Agent/TCP/FullTcp]
- $ns_ attach-agent $node_(s1) $tcp1
- $ns_ attach-agent $node_(k1) $sink
- $tcp1 set fid_ $fid
- $sink set fid_ $fid
- $ns_ connect $tcp1 $sink
- # set up TCP-level connections
- $sink listen ; # will figure out who its peer is
- } elseif {$tcptype == "FullTcpTahoe"} {
- set wrap $wrap1
- set tcp1 [new Agent/TCP/FullTcp/Tahoe]
- set sink [new Agent/TCP/FullTcp/Tahoe]
- $ns_ attach-agent $node_(s1) $tcp1
- $ns_ attach-agent $node_(k1) $sink
- $tcp1 set fid_ $fid
- $sink set fid_ $fid
- $ns_ connect $tcp1 $sink
- # set up TCP-level connections
- $sink listen ; # will figure out who its peer is
- } elseif {$tcptype == "FullTcpNewreno"} {
- set wrap $wrap1
- set tcp1 [new Agent/TCP/FullTcp/Newreno]
- set sink [new Agent/TCP/FullTcp/Newreno]
- $ns_ attach-agent $node_(s1) $tcp1
- $ns_ attach-agent $node_(k1) $sink
- $tcp1 set fid_ $fid
- $sink set fid_ $fid
- $ns_ connect $tcp1 $sink
- # set up TCP-level connections
- $sink listen ; # will figure out who its peer is
- } elseif {$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_(k1) $sink
- $tcp1 set fid_ $fid
- $sink set fid_ $fid
- $ns_ connect $tcp1 $sink
- # set up TCP-level connections
- $sink listen ; # will figure out who its peer is
- } else {
- set tcp1 [$ns_ create-connection TCP/$tcptype $node_(s1)
- TCPSink $node_(k1) $fid]
- }
- $tcp1 set window_ 50
- set ftp1 [$tcp1 attach-app FTP]
- $ns_ at 0.0 "$ftp1 start"
- $self tcpDump $tcp1 2.0
- $self drop_pkts $list
- #$self traceQueues $node_(r1) [$self openTrace 2.0 $testName_]
- $ns_ at 2.0 "$self cleanupAll $testName_"
- $ns_ run
- }
- # Definition of test-suite tests
- ###################################################
- ## One drop, numdupacks
- ###################################################
- # cwnd is 4 when a packet is dropped.
- # When three dup acks come in, cwnd in halved to 2.
- # dupwnd_ is set # to three,
- # so the sender retransmits the lost packet,
- # and also sends a new packet off the top, because
- # cwnd has been "inflated" by the three dup acks.
- # This occurs, appropriately, with both Reno and Newreno.
- # This does not occur for Sack, because Sack only sends one packet
- # in response to the third dup ack.
- #
- Class Test/onedrop_reno -superclass TestSuite
- Test/onedrop_reno instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net4
- set test_ onedrop_reno
- set guide_ "Reno, inflated congestion window after Fast Retransmit."
- $self next pktTraceFile
- }
- Test/onedrop_reno instproc run {} {
- $self setup Reno {3}
- }
- 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, no inflated congestion window after Fast Retransmit."
- $self next pktTraceFile
- }
- Test/onedrop_sack instproc run {} {
- $self setup Sack1 {3}
- }
- Class Test/onedrop_sack1 -superclass TestSuite
- Test/onedrop_sack1 instproc init {} {
- $self instvar net_ test_ guide_
- set net_ net4
- set test_ onedrop_sack1
- Agent/TCP set singledup_ 1
- set guide_ "Sack, Limited Transmit, inflated congestion window."
- $self next pktTraceFile
- }
- Test/onedrop_sack1 instproc run {} {
- $self setup Sack1 {3}
- }
- TestSuite runTest