Hi,
I think that the observed phenomenon depends on how the queue is
serviced too. Part of the explanation is that the MAC layer is
fetching those packets from the queue in a constant pace. And
basically this means that your network isn't loaded enough so that it
causes some "randomness" to be in
If you're using the same user under cygwin.. then it's possible that the
execute permission wasn't set. Just "chmod 777 nam" while in nam's
directory in your cygwin shell.
Andrea M wrote:
> Hi, I'm really a NS beginner.
> I installed NS-allinone-2.29 by Cygwin on WindowsXP and then I downloade
Hi all,
I just start using NS. Your help is greatly appreciated!
I want to implement a probing method using Poisson process to study how
accurate it can measure packet loss rate. I guess there must be already lots of
similar tools in NS. Where can I find such packages? I tried the one at
http
Hi, I'm really a NS beginner.
I installed NS-allinone-2.29 by Cygwin on WindowsXP and then I downloaded
example1.tcl from Marc Grei's tutorial pages but I have problem processing
it.
This is the error when I launch "ns example1a.tcl":
ns: finish: couldn't execute "nam": permission denied
whil
This is an EXCELENT description of what happens in a non-randomized
simulation, and from my experience, I fully agree on that.
It is exactly this kind of material that would be very useful for the NS2
Wiki, to store this information permanently!
As such, somebody on this list please contribute
In reality, sure. What's happening with the simulation though, is that
the packets are being sent at the same time. Even though you start the
flows sending at t=0 and t=10, when they're both sending, they're
sending at the exact same instant. Since internally, everything is
handled in a fix
Hello all,
I am a BEGGINER using NS, but I haven't been able to run it yet...
I have taken a look at the troubleshooting and help page, but none of the
answers there have helped me so far.
After positioning myself in the directory where NS is installed
(ns-allinone-2.29 versi
Hi everybody,
I have a problem whit SMAC when the energy of a node become 0 and the node
dies!
In my simulation I have a sink-node, a source-node and two node that
forwards the packets sent by this, but when one of the forwarder-node dies
in the simulation there isn't more trasmission of packe
Hi Sara:
I'm working with MAC 802.15.4 model developped by Zheng too and I think that
there are some error with respect to the standard. For example, RFD nodes
can communicate with any other node even among them. This is an error.
Tell me if I'm mistaken.
About your question, the standard d
Hi there:
I'm repeating the sim of myprevious post but using Red PD instead of drop
tail between nodes R1 and R2. However, when i run the sim, i get this:
RedPD: ERROR: FlowMonitor Not Found --
So, how do i define a flow monitor to get RED PD to work? What else should i
do (besides flow m
Hi,
Its not difficult to code such a Ping Agent which would send packets
without getting connected. Actually when u call connect for agents, the
address gets associated (daddr, dport) so u dont need to set these values
when u create a new packet. When agents are connected, what u do is call
a
Hi all,
For some reason when I call trace() from linkcache.cc it does not get
logged in the trace file. I don't have this problem from say routecache.cc.
verbose_debug is set to true, and RTR and AGT trace in the Tcl file are
both switched on.
Can anyone tell me what I am doing wrong?
Cheers
Eduardo,
the flag simply introduces a random delay to each packet
(i.
e. the CBR sources does not send 1 pkt ever T seconds,
but every
T+random(-T/2,T/2). I am not sure about the random
interval, but this
is the way it works, and it is useful to avoid
that the two sources
transmit at the same
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