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# Copyright (C) 1999 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.
#
# An example script that simulates large-scale web traffic.
# See web-traffic.tcl for a smaller scale web traffic simulation.
#
# This is intended to be a simpler version than the large-scale-web-traffic.tcl
# but consists of more than one objects per page.
#
# Created by Polly Huang (huang@catarina.usc.edu)
# Modified by Haobo Yu (haoboy@isi.edu)
global num_node n verbose
set verbose 0
source varybell.tcl
# Basic ns setup
set ns [new Simulator]
# Create generic packet trace
$ns trace-all [open my-largescale.out w]
# Defined in varybell.tcl
create_topology
########################### Modify From Here #####################
# Create page pool
set pool [new PagePool/WebTraf]
# Setup servers and clients
$pool set-num-client [llength [$ns set src_]]
$pool set-num-server [llength [$ns set dst_]]
set i 0
foreach s [$ns set src_] {
$pool set-client $i $n($s)
incr i
}
set i 0
foreach s [$ns set dst_] {
$pool set-server $i $n($s)
incr i
}
# Number of Sessions
set numSession 5
# Inter-session Interval
set interSession [new RandomVariable/Exponential]
$interSession set avg_ 1
## Number of Pages per Session
set sessionSize [new RandomVariable/Constant]
$sessionSize set val_ 5
# Random seed at every run
global defaultRNG
$defaultRNG seed 0
# Create sessions
$pool set-num-session $numSession
set launchTime 0
for {set i 0} {$i < $numSession} {incr i} {
set numPage [$sessionSize value]
puts "Session $i has $numPage pages"
set interPage [new RandomVariable/Exponential]
$interPage set avg_ 15
set pageSize [new RandomVariable/Constant]
$pageSize set val_ 3
set interObj [new RandomVariable/Exponential]
$interObj set avg_ 0.01
set objSize [new RandomVariable/ParetoII]
$objSize set avg_ 12
$objSize set shape_ 1.2
$pool create-session $i $numPage [expr $launchTime + 0.1] \
$interPage $pageSize $interObj $objSize
set launchTime [expr $launchTime + [$interSession value]]
}
## Start the simulation
$ns at 800.1 "finish"
proc finish {} {
global ns
$ns flush-trace
exit 0
}
puts "ns started"
$ns run
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