#
# tcl/ex/newmcast/session2.tcl
#
# 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.
# 
# Contributed by Polly Huang (USC/ISI), http://www-scf.usc.edu/~bhuang
# 
#
# Session Level Simulator
#
#      0
#    +-+--+
#    1    2
# +--+-+--+--+
# 3    4     5
#
set ns [new SessionSim]

set n0 [$ns node]
set n1 [$ns node]
set n2 [$ns node]
set n3 [$ns node]
set n4 [$ns node]
set n5 [$ns node]

$ns duplex-link $n0 $n1 1.5Mb 10ms DropTail
$ns duplex-link $n0 $n2 1.5Mb 10ms DropTail
$ns duplex-link $n1 $n3 1.5Mb 10ms DropTail
$ns duplex-link $n1 $n4 1.5Mb 10ms DropTail
$ns duplex-link $n2 $n4 1.5Mb 10ms DropTail
$ns duplex-link $n2 $n5 1.5Mb 10ms DropTail

set cbr0 [new Agent/CBR]
$ns attach-agent $n0 $cbr0
$cbr0 set dst_ 0x8002
$ns create-session $n0 $cbr0

set rcvr0 [new Agent/LossMonitor]
set rcvr1 [new Agent/LossMonitor]
set rcvr2 [new Agent/LossMonitor] 
set rcvr3 [new Agent/LossMonitor]
set rcvr4 [new Agent/LossMonitor]
set rcvr5 [new Agent/LossMonitor]
$ns attach-agent $n0 $rcvr0
$ns attach-agent $n1 $rcvr1
$ns attach-agent $n2 $rcvr2
$ns attach-agent $n3 $rcvr3
$ns attach-agent $n4 $rcvr4
$ns attach-agent $n5 $rcvr5

$ns at 0.2 "$n0 join-group $rcvr0 0x8002"
$ns at 0.2 "$n1 join-group $rcvr1 0x8002"
$ns at 0.2 "$n2 join-group $rcvr2 0x8002"
$ns at 0.2 "$n3 join-group $rcvr3 0x8002"
$ns at 0.2 "$n4 join-group $rcvr4 0x8002"
$ns at 0.2 "$n5 join-group $rcvr5 0x8002"


$ns at 0.1 "$cbr0 start"
 
$ns at 1.6 "finish"

proc finish {} {
        #global rcvr3 rcvr4 rcvr5
        #puts "lost [$rcvr3 set nlost_] pkt, rcv [$rcvr3 set npkts_]"
        #puts "lost [$rcvr4 set nlost_] pkt, rcv [$rcvr4 set npkts_]"
        #puts "lost [$rcvr5 set nlost_] pkt, rcv [$rcvr5 set npkts_]"
        exit 0
}

$ns run Session