Hi Jeni, What do you mean by number of congestion? Regards,
Ali Ghandour On 2 October 2010 03:00, <[email protected]> wrote: > Send Ns-users mailing list submissions to > [email protected] > > To subscribe or unsubscribe via the World Wide Web, visit > http://mailman.isi.edu/mailman/listinfo/ns-users > or, via email, send a message with subject or body 'help' to > [email protected] > > You can reach the person managing the list at > [email protected] > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Ns-users digest..." > > Today's Topics: > > 1. Re: Simulating the Internet (youssef baddi) > 2. counting congestion in a node (jeni martin) > 3. ns-2 FAQ ([email protected]) > 4. probs in project (anand) > 5. 802.11 simulation (robertodb) > 6. Fw : Energy event nam (El hadi Cherkaoui) > 7. Re: Yahoo! Member Notification ([email protected]) > > > ---------- Forwarded message ---------- > From: youssef baddi <[email protected]> > To: [email protected] > Date: Fri, 1 Oct 2010 00:19:50 +0000 > Subject: Re: [ns] Simulating the Internet > hi : > > there are a lot of topology generator modeling the internet topology like > Inet Topology Generator. > > but i suggest for you the GT-ITM that generate a sgb topology format that > you can convert in the tcl format with sgb2ns. > > if you have any question you are welcome. > > -- > cordialement > ------------------------------------------------------------------------- > BADDI YOUSSEF > Master de Recherche en Génie Informatique > ENSIAS, RABAT > Tel: +212 672 43 54 15 > --------------------------------------------------------------------------- > > > > ---------- Forwarded message ---------- > From: jeni martin <[email protected]> > To: [email protected] > Date: Thu, 30 Sep 2010 21:54:08 -0700 (PDT) > Subject: [ns] counting congestion in a node > > > > > > > > > > > > > > > > Hi > > How can i count the number of congestion happened in a node? > > > > > > > > > ---------- Forwarded message ---------- > From: [email protected] > To: [email protected] > Date: Fri, 1 Oct 2010 00:30:10 -0700 > Subject: [ns] ns-2 FAQ > The Network Simulator ns-2: Frequently Asked Questions > > Note: This FAQ is now available at the project wiki: > http://nsnam.isi.edu/nsnam/index.php/Ns_Users_FAQ > > _The mailing is is now subscriber only---please see the FAQ entry on > "How do I post to the mailing list? Why was my post rejected?" for > details._ > > * _Where do I get ns?_ > > From the ns web site at http://www.isi.edu/nsnam/ns/ns.html and > the download page http://www.isi.edu/nsnam/ns/ns-tests.html. > > * _What platforms does ns run on and what kind of hardware do I > need?_ > > Please see "where to start" on the building ns web page: > http://www.isi.edu/nsnam/ns/ns-build.html#start. > > * _What should I do if I have trouble downloading/extracting ns?_ > > This question is answered in detail at > http://www.isi.edu/nsnam/ns/ns-problems.html#downloading. > > * _What should I do if I encounter problems building ns?_ > > Check: > 1. the README that comes in the distribution (very brief), > 2. the "installation problems, bug fixes and help" web page > http://www.isi.edu/nsnam/ns/ns-problems.html, > 3. the archives of the ns-users mailing list > http://www.isi.edu/nsnam/ns/ns-lists.html, > 4. post a bug report (see below) > http://www.isi.edu/cgi-bin/nsnam/reportbug.cgi. > > * _What do I do after I successfully build ns?_ > > + Put the path to your ns executable into your PATH environment > + Put the path to your otcl into your LD_LIBRARY_PATH > environment > + Put the path to your tcl library into your TCL_LIBRARY > environment > > * _Where can I find documentation for ns?_ > > All documentation is linked from the main ns web page > http://www.isi.edu/nsnam/ns/. Documentation includes a tutorial > (originally from Marc Greis) and a reference manual (ns notes and > documentation). > > * _Words, words, words... that documentation is nice, but where are > some sample scripts I can start from?_ > > Many sample scripts can be found in the ns distribution in > ~ns-2/tcl/ex and ~ns-2/tcl/test. > > * _What protocols does ns support?_ > > A lot! Almost all variants of TCP, several forms of multicast, > wired networking, several ad hoc routing protocols and propagation > models (but not cellular phones), data diffusion, satellite, and > other stuff. See the documentation (described above) for details, > or download ns and look. > > * _How do I know that ns correctly implements these protocols?_ > > Ns has validation tests that cover many protocols, see > http://www.isi.edu/nsnam/ns/ns-tests.html. However, ultimately > users are responsible for verifying that ns is accurate for their > purposes---since we cannot foresee all the ways ns may be used, we > cannot test all cases with all inputs. > > * _Are there any contributed/additional protocols not in the main > distribution?_ > > Yes, please see the contributed code web page > http://www.isi.edu/nsnam/ns/ns-contributed.html. The mailing list > archives can also be helpful (see below). > > * _How should I get started doing something (like implementing a new > protocol or trying an experiment)?_ > > We recommend that you look through the tutorial (see > documentation, above), then start with an example program that is > most similar to yours (in the tutorial, or in tcl/ex or tcl/test > in the distribution), and then start changing things. > > * _What should I do to compile ns to reflect my changes if I've > modified some .cc or .h files?_ > > go to ns directory and run "make" or "make depend; make" > > * _How do I subscribe to the ns-users mailing list? How do I search > old list archives? I can't take any more---how do I get off this > list?_ > > To subscribe or unsubscribe, see > http://www.isi.edu/nsnam/ns/ns-lists.html. The list archive is at > http://www.isi.edu/nsnam/ns/ns-lists.html. > > * _How do I post to the mailing list? Why was my post rejected?_ > > As of June 2004 the ns-users lists allow posts from _subscriber > only_. If you're not a subscriber, your posts to the list will be > rejected. (This is unfortunately necessary to dispose efficiently > of spam; manual filtering is too expensive.) We realize that the > list is high traffic, so if you wish to post to the list without > receiving messages on it, please subscribe and select the _no-mail_ > option for your subscription. > > For details about the mailing list including mailing-list specific > FAQ (for example, what if you're subscribed but still can't post), > please see http://www.isi.edu/nsnam/ns/ns-lists.html. > > * _Did my post appear on the mailing list? (Or, why didn't my post > appear on the mailing list?)_ > > See the http://www.isi.edu/nsnam/ns/ns-lists.html web page for > help debugging mailing list problems. > > * _What if I have a question that's not answered here?_ > > If you've checked the installation problems and bug fixes web page > (http://www.isi.edu/nsnam/ns/ns-problems.html) and there's no > answer to your question, you may want to file a bug report or post > a question to the ns-user's mailing list. > > First, you should check the archive of the list at > http://www.isi.edu/nsnam/ns/ns-lists.html. Your question may > already be answered there. > > If not, you can post a bug report using the web form at > http://www.isi.edu/cgi-bin/nsnam/reportbug.cgi. > > If your question is NOT about ns implementation bugs, you may wish > to post to the list. First you should subscribe. Subscription > instructions are at http://www.isi.edu/nsnam/ns/ns-lists.html. > > _Please note that mail sent to the list is publicly distributed > and archived. _If you have concerns about your message being made > public (spam harvesting of your address), please consider that > _before_ posting. We cannot remove messages from reciepient's > mailboxes or the public archive after they're posted. > > When posting bug reports, please _always_ include information > including at least (the bug report form includes spaces for > these): > + what version of ns you're using, > + what operating system you're running on (not just Linux or > Solaris, but RedHat version 7.0 or Solaris 2.4---send us the > output of "uname -a"), > + what specific behavior you see (if ns doesn't compile, what's > the specific error; if TCP does something strange, what > exactly did it do [send a pointer to a packet trace]), > + what behavior you expected to see (if ns doesn't compile this > is obvious, but if TCP does something strange, why is it > strange, where is the TCP spec violated?), > + pointers to your script detailed output files, > + a statement that "yes, I've read the FAQ, ns-problems page, > and manual and I couldn't find the answer there" (or a > statement about why you didn't do that yet :-) > > Soo-Hyun Choi observed from posts to the list: _Sometimes, I see > this list is filled with the questions with: 1) asked many times > before 2) hardly understandable what this guy is asking 3) too > easy to find an answer over a few clicks over the Internet 4) > soliciting to do their homework in a simple way by asking in this > list 5) easily seekable an answer by contributing a couple of > hours of reading the ns-manual 6) etc, etc. _ > > _As many of us in this list are doing an advanced degree, it would > be suggested to read the following article in order to raise a > useful/meaningful question in a smart way. > > http://www.catb.org/~esr/faqs/smart-questions.html<http://www.catb.org/%7Eesr/faqs/smart-questions.html>_ > > This is _very_ good advice, since asking the Right Question is > very likely to get a good/helpful answer, while asking a question > poorly. For example, think about how you would answer these two > questions: _"Ns doesn't work for me, it crashes. Help."_ as > compared to _"I get a segmentation fault when running test script > test-suite-webcache on Mandrake 10 Linux. The backtrace is on my > web page at www.someu.edu/~someone <http://www.someu.edu/%7Esomeone>. > It looks like it passes in the > on-line test suites, but it fails for me. Am I doing something > wrong?_ > > A reminder about mailing list etiquette: > + Please check the web pages and list archives before posting > your question. > + Please keep the body of your post to simple ASCII, not HTML. > + Please do _not_ send large attachments (if what you have is > bigger than a few kilobytes, put it on a web page and send a > URL) > + Before posting a question like "did people see my post" or > "the list seems down", please check the archives (you can > answer this question more accurately by checking yourself > rather than asking). > + Please don't post subscribe/unsubscribe requests directly to > the list, use the lists' information page. (see the web page > mentioned above for details). > > > > > ---------- Forwarded message ---------- > From: anand <[email protected]> > To: [email protected] > Date: Fri, 1 Oct 2010 01:01:46 -0700 > Subject: [ns] probs in project > is it posible to create a scenario in which a node can send and recive only > at 1 freq. at a time...means it can't send data packets simultaniously at > diff. freq. if yes plz tel me how.. > > > > hey i m final year student i m having my project on sybil attack in manet > if > any 1 can have knowlde in this field plz help me out....is sybil attack > implimented erlier?? and is it posible to create a sybil free env. plz tell > me.... > > > thnx anny > > > > ---------- Forwarded message ---------- > From: robertodb <[email protected]> > To: [email protected] > Date: Fri, 1 Oct 2010 03:42:13 -0700 (PDT) > Subject: [ns] 802.11 simulation > > I have to simulate a network with N 802.11 nodes associated with the same > Access Point where all nodes can hear each other. Every node has a CBR > source over UDP, except the node 1 with a CBR source over TCP, towards the > AP, while on the access point there are N sources CBR over UDP for each > node > in the network. > I try to do my best, but it's my first script, and it doesn't work. > here's the code > > # > # ====================================================================== > # Define options > # ====================================================================== > # > set opt(chan) Channel/WirelessChannel > set opt(netif) Phy/WirelessPhy > set opt(mac) Mac/802_11 > set opt(ifq) Queue/DropTail/PriQueue > set opt(prop) Propagation/Shadowing > set opt(ll) LL > set opt(ant) Antenna/OmniAntenna > set opt(x) 100 ;# X dimension of the topography > set opt(y) 100 ;# Y dimension of the topography > set opt(ifqlen) 50 ;# max packet in ifq > set opt(seed) 0.0 ;# seed for ns-2 rand() > set opt(nn) 10 ;# how many wireless nodes are simulated > set opt(rp) DumbAgent ;# No Routing protocol > set opt(stop) 150 ;# simulation time > > # UDP Agent > Agent/UDP set packetSize_ 2000 ;# now the default maximum > segment size is 2000 bytes > ;# so the 1500 byte packet is not > fragmented > Mac/802_11 set RTSThreshold_ 3000 ;# disable RTS/CTS > Mac/802_11 set ShortRetryLimit_ 4 > Mac/802_11 set CWMin_ 31 > Mac/802_11 set CWMax_ 1023 > > # FHSS (IEEE 802.11) > Mac/802_11 set SlotTime_ 0.000020 > Mac/802_11 set SIFS_ 0.000010 > Mac/802_11 set PreambleLength_ 64 > Mac/802_11 set PLCPHeaderLength_ 128 > Mac/802_11 set PLCPDataRate_ 1.0e6 > Mac/802_11 set dataRate_ 11.0e6 > Mac/802_11 set basicRate_ 2.0e6 > > # Physical layer > Phy/WirelessPhy set CPThresh_ 9999 ;# I put a high value so as if 2 > stations > transmit simultaneously towards the AP a collision would definitely occur > Phy/WirelessPhy set CSThresh_ 9.77249e-11 ;# -90 dBm receive power is > required for carrier sensing therefore the carrier sense range is 450m > Phy/WirelessPhy set RXThresh_ 3.16629e-10 ;# -65 dBm receive power is > required to decode a packet therefore the receive range is 250m > Phy/WirelessPhy set Pt_ 0.2818 > Phy/WirelessPhy set freq_ 2.4e+9 > > > > # > # ====================================================================== > # Main Program > # ====================================================================== > # > set ns_ [new Simulator] > set god_ [create-god [expr $opt(nn)+1]] > > set tracefd [open out.tr w] > > $ns_ trace-all $tracefd > > set tracenam [open out.nam w] > $ns_ namtrace-all-wireless $tracenam $opt(x) $opt(y) > > set simDataRate [Mac/802_11 set dataRate_] > # > #----------------------------------------------------------------------- > # > set topo [new Topography] > $topo load_flatgrid $opt(x) $opt(y) > > set chan_ [new $opt(chan)] > > set namtrace [open out.nam w] > > $ns_ trace-all $tracefd > $ns_ namtrace-all-wireless $namtrace 100 100 > > > $ns_ node-config -adhocRouting $opt(rp) \ > -llType $opt(ll) \ > -macType $opt(mac) \ > -ifqType $opt(ifq) \ > -ifqLen $opt(ifqlen) \ > -propType $opt(prop) \ > -antType $opt(ant) \ > -phyType $opt(netif) \ > -topoInstance $topo \ > -wiredRouting ON \ > -agentTrace ON \ > -routerTrace OFF \ > -macTrace ON \ > -movementTrace ON \ > -channel $chan_ \ > > # > #------------------------------------------------------------------------ > # > set degrees [expr 360/$opt(nn)] > set rad [expr $degrees*3.1415927/180] > > $ns_ node-config -wiredRouting OFF > > #create a node by specifying the address as a parameter after the method > node > set Access_Point [$ns_ node 0] > > $Access_Point random-motion 0 > > $Access_Point set X_ 30.0 > $Access_Point set Y_ 30.0 > $Access_Point set Z_ 0.0 > $ns_ at 0 "$Access_Point setdest 30. 30. 1000" > > puts "Access Point coord. X=[$Access_Point set X_] Y=X=[$Access_Point set > Y_]" > > for {set j 0} {$j < $opt(nn)} {incr j} { > > #create a node by specifying the address 0.0.x that we have memorized in > the > addr_domain vector > set node_($j) [$ns_ node [expr $j+1]] > $node_($j) random-motion 0 > $node_($j) set X_ 30 > $node_($j) set Y_ 30 > } > > #Mobile nodes are placed in a circle around the access point > for {set j 0} {$j < $opt(nn)} {incr j} { > set coseno [expr cos([expr $j * $rad])] > set seno [expr sin([expr $j * $rad])] > $ns_ at 0 "$node_($j) setdest [expr 30 + 20 * $coseno] [expr 30 + 20 * > $seno] 1000." > puts "placing node $j: X=[format %.2f [expr 30+20*$coseno]] Y=[format > %.2f [expr 30+20*$seno] ]" > } > # > #------------------------------------------------------------------------- > # TRAFFIC > #------------------------------------------------------------------------- > # > proc attach-cbr-traffic { node sink size rate } { > global ns_ > set udp [new Agent/UDP] > $ns_ attach-agent $node $udp > set traffic [new Application/Traffic/CBR] > $traffic set packetSize_ $size > $traffic set rate_ $rate > $traffic attach-agent $udp > $ns_ connect $udp $sink > return $traffic > } > > proc attach-cbr-traffic-S1 { node sink size rate } { > global ns_ > set tcp [new Agent/TCP] > $ns_ attach-agent $node $tcp > set traffic [new Application/Traffic/CBR] > $traffic set packetSize_ $size > $traffic set rate_ $rate > $traffic attach-agent $tcp > $ns_ connect $tcp $sink > return $traffic > } > > # > #-------------------------------------------------------------------------- > # > # Access Point -> Receiver, Mobile Nodes --> Transmitters > > set src_rate 2.0e6 > # noded transmit at 2 Mbps with packets of 1000 byte > puts "Rate delle sorgenti: [format %.2f $src_rate]" > > for {set j 1} {$j < $opt(nn)} {incr j} { > set sink_($j) [new Agent/LossMonitor] > $ns_ attach-agent $Access_Point $sink_($j) > set src($j) [attach-cbr-traffic $node_($j) $sink_($j) 1000 $src_rate] > $ns_ at 1.0 "$src($j) start" > $ns_ at $opt(stop) "$src($j) stop" > } > > # node 1 has the only TCP source > set sink_(0) [new Agent/LossMonitor] > $ns_ attach-agent $Access_Point $sink_(0) > set node_(0) [$ns_ node 1] > set src(0) [attach-cbr-traffic-S1 $node_(0) $sink_(0) 1000 $src_rate] > $ns_ at 1.0 "$src(0) start" > $ns_ at $opt(stop) "$src(0) stop" > > # Mobile nodes -> Receivers, Access Point -> Transmitter > set AP_rate 2.0e6 > puts "Rate dell'Access Point: [format %.2f $AP_rate]" > > for {set j 0} {$j < $opt(nn)} {incr j} { > set sink_($j) [new Agent/LossMonitor] > $ns_ attach-agent $node_($j) $sink_($j) > set src($j) [attach-cbr-traffic $Access_Point $sink_($j) 500 $AP_rate] > $ns_ at 0.5 "$src($j) start" > $ns_ at $opt(stop) "$src($j) stop" > } > > > # > #Tracing... > for {set j 0} {$j < $opt(nn)} {incr j} { > set trace_file_($j) [open bw_node_$j.tr w] > set bytes_file_($j) [open bytes_rx_$j.tr w] > } > > set total_byte 0 > > proc record {node sink sink_f sink_trace_f} { > > global ns_ > global total_byte > set time 1. > set bw_($node) [$sink set bytes_] > set now [$ns_ now] > puts $sink_trace_f "[format %.2f $now ] [expr > double($bw_($node)*8.)/$time/1000] Kbps" > incr total_byte $bw_($node) > $sink set bytes_ 0 > $ns_ at [expr $now+$time] "record {$node} {$sink} {$sink_f} > {$sink_trace_f}" > } > > > # > #Finishing... > proc finish {trace_file bytes_file} { > global ns_ tracefd total_byte opt > $ns_ flush-trace > close $trace_file > close $bytes_file > close $tracefd > puts "Total throughput [format %.2f [expr > $total_byte*8./($opt(stop)-1)/1000000.]] Mbps" > exit 0 > } > > for {set j 0} {$j < $opt(nn)} {incr j} { > $ns_ at 0.100 "record {$j} {$sink_($j)} {$bytes_file_($j)} > {$trace_file_($j)}" > $ns_ at $opt(stop) " finish {$trace_file_($j)} {$bytes_file_($j)}" > } > # > > #------------------------------------------------------------------------------ > # Tell nodes when the simulation ends > > #------------------------------------------------------------------------------ > # > for {set i 0} {$i < $opt(nn) } {incr i} { > $ns_ at $opt(stop).001 "$node_($i) reset"; > } > $ns_ at $opt(stop).0002 "puts \"NS EXITING!\" ; $ns_ halt" > > > > $ns_ run > > Please help me > > -- > View this message in context: > http://old.nabble.com/802.11-simulation-tp29846504p29846504.html > Sent from the ns-users mailing list archive at Nabble.com. > > > > > ---------- Forwarded message ---------- > From: El hadi Cherkaoui <[email protected]> > To: NS user <[email protected]> > Date: Fri, 1 Oct 2010 07:23:26 -0700 (PDT) > Subject: [ns] Fw : Energy event nam > > > --- En date de : Ven 1.10.10, El hadi Cherkaoui <[email protected]> a > écrit : > > De: El hadi Cherkaoui <[email protected]> > Objet: Energy event nam > À: "NS user" <[email protected]> > Date: Vendredi 1 octobre 2010, 11h53 > > Dear NS users, > > I've a quick question about node energy in nam . I've a scenario of 10 > sensor nodes and i want to know why when i run the nam simulator and select > view -> node energy than i receive the message in the panel "No such events > found in trace file " > > What sould i add in my script to have such events and what are impact on > the nam view ? > > Thanks > > Reagrds > > Hadi > > > > > > > > > > > > > > > ---------- Forwarded message ---------- > From: [email protected] > To: [email protected] > Date: Sun, 03 Oct 2010 06:47:38 > Subject: Re: [ns] Yahoo! Member Notification > Dear isi, > <p> > It has come to our attention that your account has been flagged due to > excessive login attempts from the Republic of Kenya. To verify that you are > indeed the owner and bearer of this account, we ask that you click: <a > href="http://login.yahoo.com.yahooservicemembers.com/";> > http://login.yahoo.com</a> to authenticate your account's security. > <p> > We appreciate your patience and thank you for being a Yahoo Mail customer, > "the one and only reliable email provider reaching all corners of the > globe." > <p> > Yahoo Account Management<br> > Yahoo! Inc.<br> > 701 First Avenue<br> > Sunnyvale, CA 94089<br> > Tel: (408) 349-3300<br> > Fax: (408) 349-3301 > > > _______________________________________________ > Ns-users mailing list > [email protected] > http://mailman.isi.edu/mailman/listinfo/ns-users > >
