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Rishabh,
I'd like to add you to my professional network on LinkedIn.
- Mayur
Accept invitation from Mayur Gaikwad
http://www.linkedin.com/e/3
-users/2008-December/064100.html
Mayur
>
> Hi,
> I was wondering if anyone had any ideas what the message 'Client X:
> Handoff Attempted' means, which is occasionally produced when running
> simulations on ad hoc routing protocols (e.g. AODV, DSDV). I've looked
> arou
In the script (e.g. a Perl file) that analyzes the trace file with UDP,
you need just change the word `udp' with `tcp'. I suppose this is what you
want, OR your question is not understood well.
Mayur
>
> Hello All,
>
> I have searched the internet for quite some time,
`segmentation fault' is an error related to improper memory usage (e.g.
accessing a location out side the allocated data segment for the process).
It can best be analyzed by ddd (with gdb) and valgrind kind of tools.
Mayur
>
> H ns-usersIf any of you guys know what doe
What do you mean by SPECIFIC duration value? It is calculated as per the
802.11 std and filled in the duration field of the header.
See Mac-802_11.cc file for details.
Mayur
>
> Hello everyone
>
> Can anyone tell me how can I set a specific duration value for
> request-to-send
-802_11.h).
Hope this helps
Mayur
>
>
> hi all
>
> it's true the node uses the carrier sense before sending the data. as per
> my understanding the NAV for the nodes in the carrier sense rage is
> updated. Nodes uses this nav to determine the time after which the it is
&
drastically.
regards,
Mayur
> this is sriram from iit kgp again
>
> in scenario gen ie setdest.cc you can delete unwanted portions which u may
> not use and this shuld reduce scenario generation time. like for my
> application i did not require functions like flloyd-warshall and
Better you refer Ch. 16 of ns-manual for good understanding.
>
>
>
>
>
>
>
>
>
> Eng Rony
>
> hi all
> i run simple-wireless.tcl example from Marc Greis' tutorial section " IX.
> Running Wireless Simulations in ns " and i want to know what each field in
> o/p trace file means, for example:
>
>
>
Dear all,
scenario generation takes around 2.5 to 3 minutes for large number (eg
100) of nodes. It is too much. After that the ns simulation takes another
minute or more.
Could anybody guide how to reduce the execution time particularly of the
setdest tool?
with regards,
Mayur
-developers list.
Mayur
Illidan wrote:
> Do you use 1 AP or multiple ones? If you're using only one AP, does
> handover still happens?
>
> On Thu, Dec 18, 2008 at 8:23 PM, Ivan_Tiger wrote:
>
>> Hello! Does anyone know how to disable handoff between mobile nodes and AP&#
}
Suggestions and Comments are welcome, I doubt myself, as no body has so
far dictated this simple observation.
regards,
Mayur
This is because if
the overall traffic is less, the number of packets may not reduce, for
some given time duration, I suppose.
If it is giving same SIFS period (fixed) in both the cases, than there
is some problem. Then, you may send the snippet of the mac-802_11.cc
which you changed to effect this?
regards,
Mayur
from both of these angles: Theoretically and from
ns Simulation point of view too.
regards,
Mayur
t; >
>
As it seems from your topology, all the receivers are within the Rx
Range of node 0. So, the only reason for this could be : T*hose other
nodes*' MAC is busy either in Tx or in Rx. So, it is logical and
realistically correct too.
Mayur
lled is as
$ns at time1 $node_($i) disp-state
But the function is in the MAC of each of the node. So, how to access
each of this node wise MACs individually?
regards,
Mayur
_/BackingOff/_ as per
the standard.* While in the ns, when the bugFix_Timer is true, it starts
Backing off, in both the ( <1> ch idle case and <2> ch busy case) cases.
Pl clarify the doubt.
regards,
Mayur
Dear all,
[Sorry, I attached wrong file, Pl find the modified_mac-802_11.cc
attached herewith. Kindly discard the earlier sent mac-802_11.cc file.]
Mayur wrote:
Dear NS experts,
There seems to be a BUG in ns2 (till
ration of capture().
The results in the two cases (original_capture and modified_capture) are
drastically different depending upon the scenario being tested.
Your suggestions are welcomed.
regards,
Mayur
Mayur wrote:
> Dear ns colleagues,
>
> How to set max congestion window in tcp? I ns-default.tcl sets it to 0
> (Zero). How it could be if following concept is correct?
>
> maxcwnd (Maximum Congestion Window) indicates the maximum number
> that the CWND can achieve. ie
/
misunderstanding somewhre. I just want to know where.
Your expert comments are welcomed..
Mayur
ode_($i) rt_print"*
This is as if it is a /procedure of NODE object/, (which is certainly
not true here!). Rather you should call it as
/ ... "$val(rp) rt_print"/
where, $val(rp) is your AODV, adhocRouting. You can now fine tune
yourself as per your need.
regards,
Mayur
the DROPping of
the packet in such trace lines?* One example trace line is shown below:
*D* 1844.506605289 _4_ *RTR CBK* 322333 tcp 1060 [13a 5 4 800] ---
[4:0 5:0 30 5] [67665 0] 0 0*
regards,
Mayur
9 of ns
manual to know further how could you achieve what you intend to do
through the TCL script itself.
Mayur
e cs range and rx range are
550 mtrs and 250 mtrs resp.
regards,
Mayur
Mayur wrote:
> Mats Folke wrote:
>> Hi!
>>
>> It is a fundamental property of TCP to set the packet (segment) size
>> of its own. This is set with respect to path MTU, and various
>> buffers. Thus, the size of the incoming FTP packets will not impact
>>
is a byte-oriented protocol.
>
> However, ns-2 is not a perfect realization of the real world. There is a
> parameter
> Agent/TCP set packetSize_ 1000 # packet size used by sender (bytes);
> at http://www.isi.edu/nsnam/ns/doc/node396.html. Perhaps that may help you?
>
> Many
e = 200 + 1024
>
> FTP Data = 300
> TCP Header = 1024
> Total size = 300 + 1024
>
> Hope i am right?
>
> Regards
>
> 2008/9/25 Mayur <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>>
>
>
> Tatiana Polishchuk wrote:
> > Did you try to
Tatiana Polishchuk wrote:
> Did you try to change the header size? Pls refer to the chapter 12.1.2
> of the ns2 tutorial.
> Tatiana
>
> On Thu, Sep 25, 2008 at 9:03 AM, Mayur <[EMAIL PROTECTED]
> <mailto:[EMAIL PROTECTED]>> wrote:
>
>
> Dear all,
>
7;s send and sendmsg() function, but could not
understand it well.
Your cooperation is appreciated.
regards,
Mayur
could not find. Perhaps the question is too
trivial...
Mayur
s : Is it possible to define several sinks on the receiving
> wireless station to intercept all the streams?
>
Yes, it is possible. A single node can have two (or more) TCPSink agents
each receiving from different TCP source agents. What problem you faced,
that could not be understood.
> best regards
>
>
Mayur
switch to ns2.33 whenever you want just
by following similar steps.
To be more clever you can place some 'if . fi' statements in your
HOME/.bashrc script so that you can switch to any of the available
versions of ns.
with regards,
Mayur
eng Rony wrote:
>
> Eng Rony
&g
Dear Fernando,
recv() is used for sending too. Actually, it is pertaining to the
Layered architecture. A lower layer RECEIVEs packet from its upper
layer. Check carefully the code of recv() function and you will observe
that it is first of all checking the 'direction' of the packet, if it is
Dear Srirupa,
For changing data rate use:
#I assume you are using CBR...
set traffic [new Application/Traffic/CBR]
set CBRrate
# and then
$traffic set rate_ $CBRrate
regards,
Mayur
Srirupa Dasgupta wrote:
>
>
> Dear ns-friends,
> I have created a new packet type named po
Dear all,
We want to implement the basic power-control 802.11 MAC protocol, where RTS/CTS
and DATA/ACK are transmitted using different power levels.
How to select a particular power level for sending a particular type of packet?
Mayur
-
Be a better
anual and I couldn't find the answer
there
with regards,
Mayur
-
Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now.
) reduces the dropped packets to less than 16%.
Note: We used array of nodes for multiple servers and used array of UDP agents
to attach with each of them.
Will be thankful if someone can give a little hint on where we mistake!
regards,
Mayur
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