vlantest-flat.tcl
上传用户:rrhhcc
上传日期:2015-12-11
资源大小:54129k
文件大小:2k
- puts "sourcing tcl/lan/vlan.tcl..."
- source ../lan/vlan.tcl
- set opt(tr) out
- set opt(namtr) "vlantest-flat.nam"
- set opt(seed) 0
- set opt(stop) .5
- set opt(node) 4
- set opt(qsize) 100
- set opt(bw) 10Mb
- set opt(delay) 1ms
- set opt(ll) LL
- set opt(ifq) Queue/DropTail
- set opt(mac) Mac/Csma/Cd
- set opt(chan) Channel
- set opt(tcp) TCP/Reno
- set opt(sink) TCPSink
- set opt(app) FTP
- proc finish {} {
- global ns opt
- $ns flush-trace
- exec nam $opt(namtr) &
- exit 0
- }
- proc create-trace {} {
- global ns opt
- if [file exists $opt(tr)] {
- catch "exec rm -f $opt(tr) $opt(tr)-bw [glob $opt(tr).*]"
- }
- set trfd [open $opt(tr) w]
- $ns trace-all $trfd
- if {$opt(namtr) != ""} {
- $ns namtrace-all [open $opt(namtr) w]
- }
- return $trfd
- }
- proc create-topology {} {
- global ns opt
- global lan node source node0 nodex
- set num $opt(node)
- for {set i 0} {$i < $num} {incr i} {
- set node($i) [$ns node]
- lappend nodelist $node($i)
- }
- set lan [$ns make-lan $nodelist $opt(bw)
- $opt(delay) $opt(ll) $opt(ifq) $opt(mac) $opt(chan)]
- set node0 [$ns node]
- $ns duplex-link $node0 $node(1) 20Mb 2ms DropTail
- $ns duplex-link-op $node0 $node(1) orient right
- set nodex [$ns node]
- $ns duplex-link $nodex $node(2) 20Mb 2ms DropTail
- $ns duplex-link-op $nodex $node(2) orient left
- }
- ## MAIN ##
- set ns [new Simulator]
- set trfd [create-trace]
- create-topology
- set tcp0 [$ns create-connection TCP/Reno $node0 TCPSink $nodex 0]
- $tcp0 set window_ 15
- set ftp0 [$tcp0 attach-app FTP]
- #set udp0 [new Agent/UDP]
- #$ns attach-agent $node0 $udp0
- #set cbr0 [new Application/Traffic/CBR]
- #$cbr0 attach-agent $udp0
- #set rcvr0 [new Agent/Null]
- #$ns attach-agent $nodex $rcvr0
- #$udp0 set dst_ [$rcvr0 set addr_]
- $ns at 0.0 "$ftp0 start"
- #$ns at 0.0 "$cbr0 start"
- $ns at $opt(stop) "finish"
- $ns run