Re: [ns] Phy to MAC buffer

link queue or MAC level downlink > queue. > > Sincerely, > Alexander Sayenko > > -Original Message- > From: "Sasan Sahraei" <[EMAIL PROTECTED]> > To: ns-users@ISI.EDU > Date: Tue, 20 Feb 2007 00:09:52 - (GMT) > Subject: [ns] Phy to MAC buffer

[ns] Phy to MAC buffer

Hi, Where can I find / access the buffer between PHY and MAC? Is there any buffer in between MAC and PHY (upwards)? Thanks, Sasan

Re: [ns] Size of the queue in c++ not solved yet Please help and reply

open up the core file and see what does the stack tracing say. Maybe there is a bug that you can fix it. Send the stack track and I'd be interested to see it too. Sasan > > Dear all would you kindly help on that > i would like to get the instantanous queue size of packets in my C++ code > at >

[ns] Phy to MAC buffer

Hi, How can I get access to the buffer between phy and 802.11 MAC (upwards) ? Is there any buffer at all? Thanks, Sasan

[ns] Indoor and outdoor parameters

All, When using shadowing propagation model setting path loss to 2 (range 2 to 3.7) and standard deviation to 3 (range 2 to 3) mainly suites an indoor environment. Propagation/Shadowing set pathlossExp_ 2.0 Propagation/Shadowing set std_db_ 3.0 my questions are: 1. Is the above accurat

Re: [ns] trace tool for ns2

you can get help from totals.pl or other scripts from CMU Monarch project. but might need some modifications relative to your need. Sasan > > I am doing a class project on ns2 - wireless flooding. Is there any > freely available tool to read the trace files? Thanks, > -Anupama > PS:- I did try t

Re: [ns] Trace File - - - which data represent packet id

The way I calculate the overall simulation avg end-to-end delay is the SUM of all transmission time framce within the whole simulation (end - start per flows/packet ids) over total number of data packets received. start[packetid] = time end[packetid] = time and for all packets (sum of all end

[ns] queston about REQUEST / REPLY - duplicate info

Hi All, As an example AODV new trace format logs REQUEST both in ARP level and network level (aodv) one if -Po in ARP level and the second one in -Pc as network level (aodv) now if I want to count number of requests / replies, should I count both of just the network level? any comments? Thank

Re: [ns] R: which trace format is more accurate?

Marco, This is the exact point, the difference is about 300 to 400 for 100 sec sim time I reran the same simulation and all I did was to change the trace format, but I see such a difference in number of sent $1~/s/ && /AGT/ { sent ++; } any comments? both running on the same machine. all th

[ns] Setting energy model for physical layer

Hi All, A little bit confusion: to have control over the energy model, what is the difference between setting them in ns-config as below: -energyModel $val(energymodel) \ -idlePower $val(idlepower) \ -rxPower $val(receivepower) \

Re: [ns] Fwd: What does "h" stand for in trace format

check here, you might find the answer: http://k-lug.org/~griswold/NS2/ns2-trace-formats.html Sasan > -- Forwarded message -- > From: Tuhin Kanti Sharma <[EMAIL PROTECTED]> > Date: Apr 15, 2006 7:57 AM > Subject: [ns] What does "h" stand for in trace format > To: ns-users@isi.edu

Re: [ns] R: which trace format is more accurate?

Marco, I agree that I need separate awk scripts for different trace formats but the particular example that I gave below is straight forward $1~/s/ && /AGT/ { sent ++; } and should return total number of sents message in a simulation and that still returns different values (unless this is not

[ns] which trace format is more accurate?

Hi All, I am generating both trace formats (old and new) for the "exact" same simulation, and for instance I count total number of messages sent as below (in my awk file) $1~/s/ && /AGT/ { sent ++; } but I get two different results now I wonder, which one of the trace files are accurate? whic

Re: [ns] how can i use the parameters with cbrgent.tcl to change the nombre of streams

change mc > > Hello everybody > i wana to chage the nombre of streams for calclating the raio numbre of > paquets received/nombre of paquets send,but i don't undersatnd wich one > i must to change,the seed,the rate,the mc?? > can you help me,please to advance thank you very much > > > --

Re: [ns] Running nam on cygwin

in addition, I guess you need to run nam through startup batch file of XWindows simulator, make sure X11 is installed and from bin directory you can run startxwin.bat Sasan > > Hello Tuhin Kanti Sharma, > > You are probably trying to use NS on a linux server with ssh. Am I > wrong? Anyway, typing

Re: [ns] setdest aborts in ns-allinone-2.28 due to Version variable issue?

use setdest version 2 by setdest -v 2 have a look at make-scen-steadystate.csh as an example Sasan > > Dear ns users, > > I am running ns-allinone-2.28 successfully on my > RedHat Linux 9.0 PC. But when I ran > > ./setdest -n 20 -p 2.0 -s 10.0 -t 200 -x 500 -y 500 > > scen-20-test > > I

Re: [ns] Values to be set in the TCL file to make the transmission range 100m

transmission range defined internally by distCST_ the transmission range is suppose to be calculated using the parameted below (as you mentioned) and propagation model however by looking at the Wireless Physical code, the propagation model is not implemented yet and thus the result is as -1 which

[ns] Energy Model - what is the best measurement?

All, Can someone please point me to a document that explains in details the best mearurements for the energymodel parameters, (energy-aware nodes). i.e. below is an example, but I am not too sure how can I define the value for the parameters below, if anyone can show me a good document I will ap

[ns] setting distCST_ what is the default value?

Hi All, by the following setting Antenna/OmniAntenna set X_ 0 Antenna/OmniAntenna set Y_ 0 Antenna/OmniAntenna set Z_ 0.5 Antenna/OmniAntenna set Gt_ 1.0 Antenna/OmniAntenna set Gr_ 1.0 the default value for distCST_ changes to an unexpected value of: distCST_ = 1797693134862315708145274237317

Re: [ns] General question about extracted files of ns-allinone and a FC5 issue

I don't think so, the best way to practice this, is to create a user with low privilages to only a subdirectory in FS, an then install NS-2. if it tries to access something that it doesn't have permission to, it will let you know, yet again, I don't think if it conflicts with anything else, I le

Re: [ns] error on running nam

if you are running cygwin you don't need to set DISPLAY if you are loging into a unix based environmen through i.e. exceed, then you can set DISPLAY to :0.0 Sasan > > > > > > I am using ns-allinone-2.29 on windows XP SP-2.I have set DISPLAY > environment variable as "my_hostname:0..0" but I a

Re: [ns] What this code means?

he bit rate of the transmition? > > regards > Luciana > > - Original Message - > From: "Sasan Sahraei" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Cc: > Sent: Thursday, April 06, 2006 6:40 PM > Subject: Re: [ns] What this code

[ns] segmentation fault in TORA

Hi All, I am experiencing segmentation fault when using TORA. have anybody seen this before? I appreciate any advice. Thanks, Sasan

Re: [ns] What this code means?

Hi Luciana, SharedMedia interface with parameters: extracted from the header file: double freq_; // frequency double lambda_; // wavelength (m) double L_; // system loss factor double RXThresh_; // receive power threshold (W)

Re: [ns] dsr protocol core dumed

make sure you are using CMU priority queue (instead of PriQueue) set val(ifq)CMUPriQueue this is required only for DSR Sasan > > hi all > Please can any bidy help me my problem during the > runinng of the dsr protocol it give a segmentation > fault (core dumed) and exit form the impel

Re: [ns] Question about xgraph

If this is cygwin, you caninstall X11 and then you can find it under /usr/X11R6/bin/xgraph Sasan > > Hi all, > I have a trouble with xgraph now. When I run an example from the following > website http://www.isi.edu/nsnam/ns/tutorial/, example 4 about how to > Create > Output files for xgraph, t

[ns] Has anybody experienced problem with DSR?

Hi, I am simulating over 50 nodes and with a certain movement and traffic pattern, the flow blow in DSRAgent result in core when setting the routing protocol to DSR: DSRAgent::recv -> DSRAgent::handleForwarding -> DSRAgent::handleFlowforwarding -> DSRAgent::XmitFlowFailureCallback -> DSRAgent::

[ns] DSDV in inifite loop with certain physical layer threshold - help

Hi All, In DSDV, when using Phy/WirelessPhy set RXThresh_ 3.652e-10 I always get the rtable metrics = 250 and DSDV_Agent::helper_callback never gets called to update the table (through makeUpdate) so this leads forwardPacket to get into an infinite loop but when using Phy/WirelessPhy set RXT

[ns] NS hangs with certain physical layer settings

Hi All, When I set the physical layer parameters as below, ns hangs when ONLY using DSDV Phy/WirelessPhy set CPThresh_ 10.0 Phy/WirelessPhy set CSThresh_ 1.559e-11 Phy/WirelessPhy set RXThresh_ 3.652e-10 <--- note this one Phy/WirelessPhy set bandwidth_ 2e6 Phy/WirelessPhy set Pt_ 0.2818 Phy/Wir

[ns] Two questions - Node id and path optimality calculation

Hi, According to the manual -Hd represents the next hop towards the destination. In my trace file -Hd is mainlly equal to -2. i.e. r -t 30.106683874 -Hs 44 -Hd -2 -Ni 44 -Nx 1254.06 -Ny 25.52 -Nz 0.00 -Ne -1.00 -Nl RTR -Nw --- -Ma 0 -Md -Ms 2e -Mt 800 -Is 46.255 -Id -1.255 -It AODV

[ns] Multiple Propagation Models

Hi, How is it possible to have two propagation models for different distances? i.e. set twgProp [new Propagation/TwoRayGround] // setting parameter set badProp [new Propagation/Shadowing] // setting paraemters and then a third one and calling add-models to contain both? It there a wa

Re: [ns] urgent help routing overhead with dsdv gave me 1

how can you calculate "total number of delivered packets to destinations". are you talking about packets delivered successfuly? how do you calculate that? S. > > I would say that overhead should be calculated by determining the ration > of: > > Total number of routing packets used to discover

[ns] ABR Implementation for NS-2

> Hi All, > > Is there any ABR implementation for NS-2 available? Has anyone used this > algorithm recently? > > Thanks, > Sasan >

Re: [ns] Problem runing wireless examples

where is the error message? this looks working for you now. please check if you have the trace file generated Sasan > > hi all, > first of all am using Cygwin & ns-2.29 all-in-one .. am trying to run the > wireless examples associated in this link "simple-wireless.tcl" > > http://www.isi.edu/nsna

Re: [ns] problem executing wireless examples[uegent]

Its not a bug, your path to the script files needs to be modified, make sure your script is pointing to the correct location of the traffic pattern or movement scenario files. you can also modify the path and use the path exclusively. Sasan > >   > hi all > i m facing following type of errors a

Re: [ns] Help: Setdest Command

one thing you can do is to delete any (object files) .o files from setdest directory and run make again. this will definitly generate the binary for you. > > Hi, > > I would like to ask regarding "setdest" command. In the tutorial it says > that: > > In order to compile the revised setdest.cc

[ns] Simulating using TORA fails

Hi All, I am using wireless1.tcl provided by the tutorial. I have changed the routing protocol to TORA but I get the following error. anyone has ever seen this? any help would be appreciated INITIALIZE THE LIST xListHead (_o17 cmd line 1) invoked from within "_o17 cmd port-dmux _o28"

Re: [ns] I am seeing 0 overhead - why?

eans, you are sending 0.4packets/sec... due to this also overhead > will > be very less. > > Hope this will help > > Regards > Anupama A > > On 3/10/06, Sasan Sahraei <[EMAIL PROTECTED]> wrote: >> >> >> Hi, >> >> I have a script that is r

Re: [ns] core dumed with running setdest command

run the following command: pstack "core file name" > "log file" and then investigate where it is coring I suspect it is to do with missin -M. give this a try and also there is some issues with calculation os speed. you might need to comment out the default value out some traces in the method "

[ns] I am seeing 0 overhead - why?

Hi, I have a script that is running the following commands to generate traffic pattern and movement scenario but when using AODV, my simulation shows 0 overhead when running with either of the generated files. as you see each of the commands below have a set of variables. just replace then with

[ns] Table to keep minimum number of hops - fixed or variable?

Hi, According to the NS-2 manual: "Currently, God object stores the total number of mobilenodes and a table of shortest number of hops required to reach from one node to another." My question is, Is this subject to time? or the minimum number of hops is fixed within the table? To my opinion, it

[ns] propagation model

All, Is it possible to support multiple propagation model? is this a good design choice as if the d become > or < cross-over distance , it would make a possibillity of more packet processing by MAC layer? If so, how could it be done when configuring a node in Tcl? Thanks, S.

Re: [ns] Problem with handoff between 802.11 and UMTS

UMTS air interface is CDMA based, is this supported by NS-2? I doubt it S. > > > Dear all: > > I patched ns-eurane-111.diff.gz(UMTS) for clean ns-2.28. > Then I want to see how a mobile node handoff from 802.11 to UMTS (on > sctp). > But I am not familiar with UMTS system .So I have no idea to

Re: [ns] CBR over TCP ?

you can attach both agents and perform an analysis, its just TCP introduces its own delay due to estimation or calculation of the best time for transmission, nothing stops you from using both. S. > > I got similar question as Alaeddine. For example, if I want to compare the > performance of TCP

Re: [ns] Compiling error NS-2 on Solaris 9

what do you think? the compiler is g++ Thanks, Sasan > > On Mon, 27 Feb 2006 19:39:04 - (GMT), Sasan Sahraei wrote >> I get the following when compiling on Solaris 9. Which header should >> I replace? Any comments? idea? will be very appreciated. > > I got similar pro

[ns] Compiling error NS-2 on Solaris 9

Hi, I get the following when compiling on Solaris 9. Which header should I replace? Any comments? idea? will be very appreciated. Undefined first referenced symbol in file operator new[](unsigned)tools/ranvar.o operator new(unsigned)

Re: [ns] is there a methode to calculate number of hops to a route ?

Use $ns_ new-trace and then from the trace file -Pf represents the number of hops. S. > > > > hi all , > we want to calculate number of hops in a route , in ns .Is ther a > methode to do this with tcl in ns ? > > Please is there any one to do this ? > > THANK u in advance > > > >

Re: [ns] How to calculate the no.of data packets dropped

Hi event type = d will represent the dropped packet Sasan > > Hi > I am simulating a modified AODV protocol on NS2. I used trace-all in my > tcl file. Now, I want to calculate the no.of data packets dropped in the > simulation. I am using cbr traffic on UDP connection (traffic generated by >

[ns] Number of connections with 50 nodes

Hi, I am simulating 50 nodes at the moment, and I only want to send packets from a single source to a single reciever. but I also want to count the number of hops that are forwarding each packet. That's why I'm not sure if I need to have only one connection or multiple connections I am using th

[ns] Number of connections

Hi, To generate a traffic pattern file I need to pass in the max number of connections. How can I determine the optimum number of connections? should I consider a scenario that there is a connection between every pair of nodes in the simulation? I mean should it be the max possible connections?

[ns] ABR implementation in ns-2

Hi, Where can I get the implementation of ABR for ns-2. Thanks, S.