mcast.tcl
上传用户:rrhhcc
上传日期:2015-12-11
资源大小:54129k
文件大小:4k
- #
- # Copyright (c) 1996 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 MASH Research
- # Group at the University of California Berkeley.
- # 4. Neither the name of the University nor of the Research Group 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/ex/mcast.tcl,v 1.12 1999/09/10 22:08:41 haoboy Exp $
- # updated to use -multicast on and allocaddr by Lloyd Wood
- #
- # Simple multicast test. It's easiest to verify the
- # output with the animator.
- # We create a four node start; start a CBR traffic generator in the center
- # and then at node 3 and exercise the join/leave code.
- #
- # See tcl/ex/newmcast/mcast*.tcl for more mcast example scripts
- set ns [new Simulator -multicast on]
- set f [open out.tr w]
- $ns trace-all $f
- $ns namtrace-all [open out.nam w]
- $ns color 1 red
- # prune/graft packets
- $ns color 30 purple
- $ns color 31 bisque
- set n0 [$ns node]
- set n1 [$ns node]
- set n2 [$ns node]
- set n3 [$ns node]
- # Use automatic layout
- $ns duplex-link $n0 $n1 1.5Mb 10ms DropTail
- $ns duplex-link $n1 $n2 1.5Mb 10ms DropTail
- $ns duplex-link $n1 $n3 1.5Mb 10ms DropTail
- $ns duplex-link-op $n0 $n1 orient right
- $ns duplex-link-op $n1 $n2 orient right-up
- $ns duplex-link-op $n1 $n3 orient right-down
- $ns duplex-link-op $n0 $n1 queuePos 0.5
- set mproto DM
- set mrthandle [$ns mrtproto $mproto {}]
- set group0 [Node allocaddr]
- set group1 [Node allocaddr]
- set udp0 [new Agent/UDP]
- $ns attach-agent $n1 $udp0
- $udp0 set dst_addr_ $group0
- $udp0 set dst_port_ 0
- set cbr0 [new Application/Traffic/CBR]
- $cbr0 attach-agent $udp0
- set udp1 [new Agent/UDP]
- $udp1 set dst_addr_ $group1
- $udp1 set dst_port_ 0
- $udp1 set class_ 1
- $ns attach-agent $n3 $udp1
- set cbr1 [new Application/Traffic/CBR]
- $cbr1 attach-agent $udp1
- set rcvr [new Agent/LossMonitor]
- $ns attach-agent $n2 $rcvr
- $ns at 1.2 "$n2 join-group $rcvr $group1"
- $ns at 1.25 "$n2 leave-group $rcvr $group1"
- $ns at 1.3 "$n2 join-group $rcvr $group1"
- $ns at 1.35 "$n2 join-group $rcvr $group0"
- $ns at 1.0 "$cbr0 start"
- #$ns at 1.001 "$cbr0 stop"
- $ns at 1.1 "$cbr1 start"
- #set tcp [new Agent/TCP]
- #set sink [new Agent/TCPSink]
- #$ns attach-agent $n0 $tcp
- #$ns attach-agent $n3 $sink
- #$ns connect $tcp $sink
- #set ftp [new Application/FTP]
- #$ftp attach-agent $tcp
- #$ns at 1.2 "$ftp start"
- #puts [$cbr0 set packetSize_]
- #puts [$cbr0 set interval_]
- $ns at 2.0 "finish"
- proc finish {} {
- global ns
- $ns flush-trace
- puts "running nam..."
- exec nam out.nam &
- exit 0
- }
- $ns run