[ns] tcp/cbr

[marcelo ataides]

   
Please help me!
 
That the traffic TCP / CBR does not work correctly for packets with 64 bytes 
and 128 bytes. 
 


Even in time of 1 packet per second.
 

The NS transmits more packets than the requested.
 
## Simulation TCP Reno, 1 Flow, CBR, Link 100Mb.
set ns [new Simulator]
set nf [open reno.nam w]
$ns namtrace-all $nf
set tf [open reno.tr w]
$ns namtrace-all $nf
$ns trace-all $tf
$ns at 2.0 { puts wello-1 }
#set tcp [new Agent/TCP]
set tcp [new Agent/TCP/Reno]
$tcp set packetSize_ 64
set cbr [new Application/Traffic/CBR]
$cbr set interval_ 1.0
set sink [new Agent/TCPSink]

 $tcp set class_ 1
 $ns color 1 red
set n0 [$ns node]
set n1 [$ns node]
#link de 100Mbs Atraso cfe ambiente real
$ns duplex-link $n0 $n1 100Mb 0.151ms DropTail
proc finaliza {} { 
 global $ns $nf $tf
 $ns flush trace
 close $nf
 close $tf
 exec nam out.nam 
 exit O}
$ns attach-agent $n0 $tcp 
$ns attach-agent $n1 $sink 
$cbr attach-agent $tcp 
$ns connect $tcp $sink 
$ns at 1.0 $cbr start 
$ns at 61.0 $cbr stop
$ns at 62.0 exit
$ns run



Chegou o Windows 7. Deixe seu computador mais simples e fácil. Clique para 
conhecer.  
_
Converse e compartilhe fotos ao mesmo tempo. Saiba como no novo Site de Windows 
Live.
http://www.windowslive.com.br/?ocid=WindowsLive09_MSN_Hotmail_Tagline_out09

[ns] tcp/cbr traffice generator

[Thien Long]

Hi everyone,

Please help me! Who has tcp/cbr traffice generator  please send it to me. I 
need so much.

Thanks in advance!

 ==
Võ Quốc Trình



  Thiết kế ngay một Pingbox độc đáo cho riêng bạn! Tạo một nơi để chat trên 
blog là chuyện nhỏ. http://vn.messenger.yahoo.com/pingbox/

[ns] TCP + CBR = Rate Limiting?

[Veena Padmanabhan]

Hello all,

I am a new user of NS, and am trying to implement a following. Any input
would be greatly appreciated :).

So we're trying to use a simple rate limiter, on the node generated at a
certain node with a max rate X. To explain say we have

Node 0 --- Node 1  Node 2

Both Node 1 and Node 2 are sources, transmitting w/ sink at Node 0. All
flows are TCP flows. Now if i attach a CBR source to the Node 1 and give it
a rate X (an FTP source was used before, so I'll be comparing the two
results to see the change due to rate limiting) , will it limit the rate of
the flow originating at Node 1 without affecting the dynamic of this system
otherwise?

Thanks!
- Veena