[ns] Ns-users Digest, Vol 62, Issue 17
Aso Amedyan
aso.amedyan at ntnu.no
Wed Feb 18 02:40:25 PST 2009
Hi all,
When I run the simulation, NS-2 gives me the following error message:
ns:
[code omitted because of length]
: invalid command name "Agent/TCP/Newreno/QS"
while executing
"Agent/TCP/Newreno/QS set rbp_scale_ 0.75
Can everybody help me?
Thanx in advance
Aso Amedyan
aso.amedyan at ntnu.no
On Tue, 2009-02-17 at 17:00 -0800, ns-users-request at ISI.EDU wrote:
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> Today's Topics:
>
> 1. configuring access point (Karthik Talloju)
> 2. TCL Commands (obaid abbasi)
> 3. Throughput value difference in 802.11 (????)
> 4. FW: Query regarding nam (V K rathi)
> 5. Re: Throughput value difference in 802.11 (Remi VANNIER)
> 6. Questions are never answered (Remi VANNIER)
> 7. IP layer information NS-2 (Syed Faraz Hasan)
> 8. 0 throughput for FTP connection... (Salvo Danilo Giuffrida)
> 9. Re: Questions are never answered (Mats Folke)
> 10. add library to configure.in or makefile (sarym binome)
> 11. node off doesn't work (Salvo Danilo Giuffrida)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Tue, 17 Feb 2009 02:49:15 -0500
> From: Karthik Talloju <karthiktalloju at gmail.com>
> Subject: [ns] configuring access point
> To: ns-users at ISI.EDU
> Message-ID: <F751A7B4-6804-4FBB-BF53-D350C848129C at gmail.com>
> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes
>
> I am trying to simulate a wireless scenario where number of nodes are
> connected to an access point.(In a case such as wireless internet
> connections in public places). The nodes are NOT mobile.
>
> I have a couple of question regarding this :
>
> 1) I am unable to figure out how to configure the node. What should I
> mention instead of '-adhocRouting' in the following code :
>
> $ns_ node-config -adhocRouting $val(rp) \
> -llType $val(ll) \
> -macType $val(mac) \
> ....
>
> 2) What routing protocol are used in general(while accessing internet
> say). How to configure it in ns2 ?
>
> 3) Is it ok if I consider Access Point as any other node which is the
> sender(and rest nodes as receivers) or should the access point be
> configured differently?
>
> Any help is greatly appreciated.(You may point me to some link which
> can give me any leads) Thank you.
>
> Karthik
>
> ------------------------------
>
> Message: 2
> Date: Tue, 17 Feb 2009 11:33:05 +0100
> From: obaid abbasi <obaidabbasi at gmail.com>
> Subject: [ns] TCL Commands
> To: ns-users at ISI.EDU
> Message-ID:
> <26a7b1700902170233q79b9a446pf4fa3a7381d46924 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Hi,
>
> How can I find the complete list of TCL commands available in NS2?
>
> Regards,
> Ubaid
>
>
> ------------------------------
>
> Message: 3
> Date: Tue, 17 Feb 2009 13:02:02 +0100
> From: ???? <avtomatk at yandex.ru>
> Subject: [ns] Throughput value difference in 802.11
> To: <ns-users at ISI.EDU>
> Message-ID: <031f01c990f7$8c092060$b6db1e8d at Tiger>
> Content-Type: text/plain; charset="UTF-8"
>
> Hi!
> I am using 802.11 Ext model and when I plot the througput in Xgraph it turns out to be different depending on how many traces (e.g. MAC trace, Agent trace, PHY trace) are turned ON. But the thoughput can't change.
> So the question is how can I know where there is a REAL throughput value?
> Thanks in advance!
> Ivan.
>
>
> ------------------------------
>
> Message: 4
> Date: Tue, 17 Feb 2009 14:13:12 +0000
> From: V K rathi <vini_rathi at hotmail.com>
> Subject: [ns] FW: Query regarding nam
> To: <ns-users at ISI.EDU>
> Message-ID: <BAY124-W1753CF03C9E6F91C3E1D43EEB40 at phx.gbl>
> Content-Type: text/plain; charset="Windows-1252"
>
>
>
>
>
>
>
>
>
> Respected members,
>
> I have installed ns-2.33 on cygwin on my vista home basic laptop.
>
> while running simple example programs, I get error,
>
> $ nam: no display name and no $DISPLAY environment variable.
>
>
>
> I tried set it with export DSIPLAY=:0.0
>
> it gives error
>
> $ nam: couldn't connect to display "0.0"
>
> I also tried startx before running programs, it gives following error,
>
> $ nam:
>
> [code omitted because of length]
>
> : no event type or button # or keysym
>
> while executing
>
> "bind Listbox <MouseWheel> {
>
> %W yview scroll [expr {- (%D / 120) * 4}] units
>
> }"
>
> invoked from within
>
> "if {[tk windowingsystem] eq "classic" || [tk windowingsystem] eq "aqua"} {
>
> bind Listbox <MouseWheel> {
>
> %W yview scroll [expr {- (%D)}] units
>
> }
>
> bind Li..."
>
>
> I tried xhost+ command, it says command not found.
>
> can anybody figure out where the problem lies?
>
> I am new to ns-2 as well as linux environment so please.....
>
>
>
> Thanks in anticipation.
>
> Regards,
>
> Vinod Kumar Maheshwari.
> st106968 at ait.ac.th.
>
>
>
>
>
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> ------------------------------
>
> Message: 5
> Date: Tue, 17 Feb 2009 16:23:22 +0100
> From: Remi VANNIER <remi.vannier at ens-lyon.fr>
> Subject: Re: [ns] Throughput value difference in 802.11
> To: ns-users at ISI.EDU
> Message-ID: <499AD66A.6050100 at ens-lyon.fr>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Your plot script reads data in the trace files. Your script should sum
> the sizes of the packets at the AGT level. If the throughput changes,
> that must mean you don't specify the kind of lines you want to read in
> your plot script.
>
> I don't see any other explanation.
>
> Remi
>
>
>
> ------------------------------
>
> Message: 6
> Date: Tue, 17 Feb 2009 16:42:11 +0100
> From: Remi VANNIER <remi.vannier at ens-lyon.fr>
> Subject: [ns] Questions are never answered
> To: ns-users at ISI.EDU
> Message-ID: <499ADAD3.5070203 at ens-lyon.fr>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> Hi all,
>
> Most questions on these mailing list are left unanswered. Either people
> answer directly to the authors, which is a pity, because these answers
> could be of some use to others or there are other places I don't know
> where you can actually get answers.
>
>
>
>
> ------------------------------
>
> Message: 7
> Date: Tue, 17 Feb 2009 15:53:23 +0000
> From: Syed Faraz Hasan <Faraz_Hasan-S at email.ulster.ac.uk>
> Subject: [ns] IP layer information NS-2
> To: "ns-users at isi.edu" <ns-users at ISI.EDU>
> Message-ID:
> <B3779FC936E6E94F82F18CAA998222122D5EDBBAC4 at DB2PRD0101MB007.eurprd01.prod.exchangelabs.com>
>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi everyone!
>
> How do I access IP layer in NS-2. In wireless simulations, I use MAC to declare AP and Transport Layer by defining TCP traffic across the network. Where and how do I specify IP Layer? I mean, is NS-2 using IP layer when I send packets from one node to another? Which version of IP is NS-2 using, IPv4 or IPv6? How do I use either of them?
>
> Regards,
> Faraz
>
>
> ------------------------------
>
> Message: 8
> Date: Tue, 17 Feb 2009 17:13:08 +0100
> From: Salvo Danilo Giuffrida <giuffsalvo at gmail.com>
> Subject: [ns] 0 throughput for FTP connection...
> To: ns-users at ISI.EDU
> Message-ID:
> <cd9bd4150902170813i7615f74by2039c10843a952d4 at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> Hello, I've tried, both in a wireless and wired scenario, to setup an
> FTP connection between two nodes. Everything works, except for the
> fact that, if during the simulation I try to print some statistics
> about the TCP or TCPSink agent, such as the values of variables...
> ndatapack_
> ndatabytes_
> nackpack_
>
> The only value always reported is 0, despite the fact that there is
> traffic going on between the FTP source and its destination? The
> reason I'm trying to do this, is to calculate the total amount of data
> correctly transfered (that is, not counting duplicated packets).
> What am I doing wrong? Thanks
>
>
>
> ------------------------------
>
> Message: 9
> Date: Tue, 17 Feb 2009 17:29:02 +0100
> From: "Mats Folke" <mats.folke at ericsson.com>
> Subject: Re: [ns] Questions are never answered
> To: <ns-users at ISI.EDU>
> Message-ID:
> <81DD8EA2638A554EA2DA738B270F63FA32F216 at esealmw114.eemea.ericsson.se>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hi Remi,
>
> Remi VANNIER wrote:
> > Hi all,
> >
> > Most questions on these mailing list are left unanswered. Either
> > people answer directly to the authors, which is a pity, because these
> > answers could be of some use to others or there are other places I
> > don't know where you can actually get answers.
>
> Or, there are no answers. Many people on this list do cutting-edge research which means that there are no straight answers. Typical example, there might not exist an implementation of ad-hoc routing protocol XYZ because only five people in the world know about it, and they use OMNET.
>
> However, I believe there are other reasons for questions not being answered as well. These URLs should be read before posting questions.
> http://www.isi.edu/nsnam/ns/ns-faq.html
> http://www.catb.org/~esr/faqs/smart-questions.html
>
> The latter one exists in a number of translations. This might be useful for people (like myself) not using English as their mother tounge.
>
> Take care,
> --
> Mats Folke, M.Sc., Lic.Eng.
> Research Engineer
>
> Ericsson AB Office: +46 10 7171385
> Ericsson Research Fax: +46 920 99621
> P.O. Box 920 Mobile: +46 76 1271385
> SE-971 28 Lule?
>
>
>
> ------------------------------
>
> Message: 10
> Date: Tue, 17 Feb 2009 17:46:02 +0000
> From: sarym binome <binome_ini at hotmail.com>
> Subject: [ns] add library to configure.in or makefile
> To: simulateur user <ns-users at ISI.EDU>, <annachaltc at gmail.com>
> Message-ID: <SNT106-W17F7AB803AED2A22E1D3B1FCB40 at phx.gbl>
> Content-Type: text/plain; charset="iso-8859-1"
>
>
> hi everybody
>
> i add a function in a AODV protocol, this function use a openssl library (cryptography library ) when i run ./configure and make , i have error cause it didn't recognize the code
>
> aodv/aodv.o: In function `AODV::AODV(int)':
> aodv.cc:(.text+0x266f): undefined reference to `OpenSSL_add_all_digests'
> aodv.cc:(.text+0x2693): undefined reference to `RSA_generate_key'
> aodv.cc:(.text+0x26a9): undefined reference to `RSAPublicKey_dup'
> collect2: ld returned 1 exit status
> make: *** [ns] Error 1
>
>
> i try this code before in simple program, i compile it with
> g++ -lssl -lcrypto simple.cc -o simple_exec and i'd no problem!
>
> therefore i suppose that i have to add -lssl and -lcrypto to my configure.in but i have no idea how and where i can add this lib
> something like this in configure.in (or maybe makefile.in)
> AC_CHECK_LIB([ssl], [SSL_library_init], [LIBS="$LIBS -lssl -lcrypto"])
> somebody help me please
> best regard
>
>
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> ------------------------------
>
> Message: 11
> Date: Tue, 17 Feb 2009 21:14:54 +0100
> From: Salvo Danilo Giuffrida <giuffsalvo at gmail.com>
> Subject: [ns] node off doesn't work
> To: ns-users at ISI.EDU
> Message-ID:
> <cd9bd4150902171214l2fd24a38j2f1b6f5a9a6e1fea at mail.gmail.com>
> Content-Type: text/plain; charset=ISO-8859-1
>
> I'm trying to set-up a simulation of a wireless network, where nodes
> can go down during the course of an FTP transfer.
> To achieve this, I schedule the shutdown of a node with
> $ns_ at $time "$node_($i) off"
>
> The problem is that, when I run the simulation, this is the error
> message that NS-2 gives me
>
> ns: _o90 reset-state:
> (_o90 cmd line 1)
> invoked from within
> "_o90 cmd reset-state"
> invoked from within
> "catch "$self cmd $args" ret"
> invoked from within
> "if [catch "$self cmd $args" ret] {
> set cls [$self info class]
> global errorInfo
> set savedInfo $errorInfo
> error "error when calling class $cls: $args" $..."
> (procedure "_o90" line 2)
> (SplitObject unknown line 2)
> invoked from within
> "_o90 reset-state"
>
> I looked into the file 'mobilenode.cc', in the method
> MobileNode::command(....), and this is the C++ code called when the
> Tcl command "off" is called
>
> } else if (strcmp(argv[1], "off") == 0) {
> energy_model()->node_on() = false;
> tcl.evalf("%s set netif_(0)", name_);
> const char *str = tcl.result();
> tcl.evalf("%s NodeOff", str);
> tcl.evalf("%s set ragent_", name_);
> str = tcl.result();
> tcl.evalf("%s reset-state", str);
> God::instance()->ComputeRoute();
> return TCL_OK;
>
> So, I guess that the problem arises when the command "reset-state" is
> called on the DSR routing agent, represented in Tcl by the node's
> variable "ragent_". I looked into the file 'dsragent.cc', and
> elsewhere in the C++ source of NS-2, but there's no mention of a
> corresponsing method, it's like if this "reset-state" command is not
> bound to any C++ method.
> Do you have more information about this strange behaviour? I tried to
> shutdown nodes using
> "$node_($i) shutdown"
> But that doesn't work, in fact if I visualize the nam trace, traffic
> from/to the shutted down node continues...
> Do you know if there would be "collateral effects" if I'd comment the line
> tcl.evalf("%s reset-state", str) ?
>
> Thanks a lot
>
>
>
> ------------------------------
>
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>
> End of Ns-users Digest, Vol 62, Issue 17
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