- #
- # Copyright (C) 1997 by USC/ISI
- # All rights reserved.
- #
- # Redistribution and use in source and binary forms are permitted
- # provided that the above copyright notice and this paragraph are
- # duplicated in all such forms and that any documentation, advertising
- # materials, and other materials related to such distribution and use
- # acknowledge that the software was developed by the University of
- # Southern California, Information Sciences Institute. The name of the
- # University may not be used to endorse or promote products derived from
- # this software without specific prior written permission.
- #
- # THIS SOFTWARE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED
- # WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
- # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- #
- #
- # Maintainer: Kannan Varadhan <kannan@isi.edu>
- # Version Date: $Date: 2000/02/18 10:41:50 $
- #
- # @(#) $Header: /cvsroot/nsnam/ns-2/tcl/ex/srm-star.tcl,v 1.12 2000/02/18 10:41:50 polly Exp $ (USC/ISI)
- #
- if [string match {*.tcl} $argv0] {
- set prog [string range $argv0 0 [expr [string length $argv0] - 5]]
- } else {
- set prog $argv0
- }
- if {[llength $argv] > 0} {
- set srmSimType [lindex $argv 0]
- } else {
- set srmSimType Probabilistic
- }
- source ../mcast/srm-nam.tcl ;# to separate control messages.
- #source ../mcast/srm-debug.tcl ;# to trace delay compute fcn. details.
- set ns [new Simulator -multicast on]
- $ns trace-all [open out.tr w]
- $ns namtrace-all [open out.nam w]
- # make the nodes
- set nmax 8
- for {set i 0} {$i <= $nmax} {incr i} {
- set n($i) [$ns node]
- }
- # now the links
- for {set i 1} {$i <= $nmax} {incr i} {
- $ns duplex-link $n($i) $n(0) 1.5Mb 10ms DropTail
- }
- set group [Node allocaddr]
- set cmc [$ns mrtproto CtrMcast {}]
- $ns at 0.3 "$cmc switch-treetype $group"
- # now the multicast, and the agents
- set srmStats [open srmStats.tr w]
- set srmEvents [open srmEvents.tr w]
- set fid 0
- for {set i 1} {$i <= $nmax} {incr i} {
- set srm($i) [new Agent/SRM/$srmSimType]
- $srm($i) set dst_addr_ $group
- $srm($i) set dst_port_ 0
- $srm($i) set fid_ [incr fid]
- $srm($i) log $srmStats
- $srm($i) trace $srmEvents
- $ns at 1.0 "$srm($i) start"
- $ns attach-agent $n($i) $srm($i)
- }
- # Attach a data source to srm(1)
- set packetSize 800
- set s [new Application/Traffic/CBR]
- $s set packetSize_ $packetSize
- $s set interval_ 0.02
- $s attach-agent $srm(1)
- $srm(1) set tg_ $s
- $srm(1) set app_fid_ 0
- $srm(1) set packetSize_ $packetSize
- $ns at 3.5 "$srm(1) start-source"
- #$ns rtmodel-at 3.519 down $n(0) $n(1) ;# this ought to drop exactly one
- #$ns rtmodel-at 3.521 up $n(0) $n(1) ;# data packet?
- set loss_module [new SRMErrorModel]
- $loss_module drop-packet 2 10 1
- $loss_module drop-target [$ns set nullAgent_]
- $ns at 1.25 "$ns lossmodel $loss_module $n(1) $n(0)"
- $ns at 4.0 "finish $s"
- proc distDump interval {
- global ns srm
- foreach i [array names srm] {
- set dist [$srm($i) distances?]
- if {$dist != ""} {
- puts "[format %7.4f [$ns now]] distances $dist"
- }
- }
- $ns at [expr [$ns now] + $interval] "distDump $interval"
- }
- #$ns at 0.0 "distDump 1"
- proc finish src {
- global prog ns env srmStats srmEvents srm nmax
- $src stop
- $ns flush-trace ;# NB> Did not really close out.tr...:-)
- close $srmStats
- close $srmEvents
- set avg_info [open srm-avg-info w]
- puts $avg_info "avg:trep-delaytreq-delaytrep-dupttreq-dup"
- foreach index [lsort -integer [array name srm]] {
- set tmplist [$srm($index) array get stats_]
- puts $avg_info "$indext[format %7.4f [lindex $tmplist 1]]tt[format %7.4f [lindex $tmplist 5]]tt[format %7.4f [lindex $tmplist 9]]tt[format %7.4f [lindex $tmplist 13]]"
- }
- flush $avg_info
- close $avg_info
- #puts "converting output to nam format..."
- #exec awk -f ../nam-demo/nstonam.awk out.tr > $prog-nam.tr
- if [info exists env(DISPLAY)] {
- puts "running nam..."
- exec nam out.nam &
- } else {
- exec cat srmStats.tr >@stdout
- }
- exit 0
- }
- $ns run