I am trying to run CRCN protocol in ns2.31 but every time i am getting this error,
 

Hello guys. When ever i tried to run CRCN protocol i am getting following error:
harsh@ubuntu:~/ns3/test$ ns test1.tcl
num_nodes is set 10
missing operator at _@_
in expression "$i < $val(ni) _@_$val(channum) "
(parsing expression "$i < $val(ni) $val(cha...")
invoked from within
"for {set i 0} {$i < $val(ni) $val(channum) } {incr i} {
$ns_ add-channel $i $chan_($i)
}"
(file "test1.tcl" line 48)

Can someone guide me how to correct this error??

Thank you

Welcome to LQ.

»test1.tcl« : Unknown file.
Please attach `test1.tcl´ as test1.tcl.txt
* Attachments : The paper clip tool in the 'Advanced Editor'.

CRCN simulation examples : crcn-examples_05.2014.tar.gz
Link https://drive.google.com/file/d/0B7S...ew?usp=sharing

CRCN info http://www.linuxquestions.org/questions/tags/crcn/


? Any questions ? Then please specify your OS :
a) Please show the reply from the command $ uname -m
b) OS name and version.


P.S. : CRCN isn't going to have full functionality on a contemporary OS.
Oldish OS´s for CRCN : CentOS 6 and may be Ubuntu 10.04 ...
. http://www.linuxquestions.org/questi...-4175503601/#2
. http://www.linuxquestions.org/questi...-4175499622/#7

-

CRCN issue
 

Thank you knudfl for replying on my issue.

Output for uname -m command is i686

And my Test1 file is below:
set val(chan) Channel/WirelessChannel ; #Channel Type
set val(prop) Propagation/TwoRayGround ; #Radio propagation model
set val(netif) Phy/WirelessPhy ; #Network interface type
set val(ant) Antenna/OmniAntenna ; #Antenna model
set val(rp) WCETT ;#Routing Protocol
set val(ifq) Queue/DropTail/PriQueue ;# interface queue type
set val(ifqlen) 50 ;# max packet in ifq
set val(mac) Mac/802_11 ;# MAC type
set val(ll) LL ;# link layer type
set val(nn) 10 ;# number of mobilenodes
set val(ni) 2
set val(channum) 4 ;# number of interfaces
set val(cp) /home/harsh/ns3/test/ranm1.tcl ; # topology traffic file
set val(stop) 50 ;# simulation time
# ==================================================================
# Main Program
# ======================================================================


# Initialize Global Variables
set ns_ [new Simulator]
set tracefd [open /home/harsh/ns3/test/test1.tr w]
$ns_ trace-all $tracefd

# set up topography object
set topo [new Topography]
$topo load_flatgrid 1000 1000

#create nam
set namtrace [open /home/harsh/ns3/test/test1.nam w]
$ns_ namtrace-all-wireless $namtrace 1000 1000

# Create God
set god_ [create-god $val(nn)]
# configure node
$ns_ node-config -adhocRouting $val(rp) -llType $val(ll) -macType $val(mac) -ifqType $val(ifq) -ifqLen $val(ifqlen) -antType $val(ant) -propType $val(prop) -phyType $val(netif) -topoInstance $topo -agentTrace ON -routerTrace ON -macTrace ON -movementTrace ON


for {set i 0} { $i < $val(ni)} {incr i} {
set chan_($i) [new $val(chan)]
}


#configure for interface and channel
$ns_ node-config -ifNum $val(ni) -channel $chan_(0)


for {set i 0} {$i < $val(ni) $val(channum) } {incr i} {
$ns_ add-channel $i $chan_($i)
}

for {set i 0} {$i < $val(nn) } {incr i} {
set node_($i) [$ns_ node]
$node_($i) set recordIfall 1
$node_($i) random-motion 0 ;# disable random motion
}


source $val(cp) ; #source topology and traffic file generated by others

# Tell nodes when the simulation ends
for {set i 0} {$i < $val(nn) } {incr i} {
$ns_ at $val(stop).0 "$node_($i) reset";
}
$ns_ at $val(stop).0002 "puts \"NS EXITING...\" ; $ns_ halt "
proc stop {} {
global ns_ tracefd
$ns_ flush-trace
close $tracefd
exec nam /home/harsh/ns3/test/test1.nam &
exit 0
}
puts "Starting Simulation..."
$ns_ run

Sorry knudfl its a big file and i am really appriciated your help.

Thanking you in advance.

Repeat, from post #2 :

" b) OS version ..." please

→ → $ cat /etc/issue


* About test1.tcl : The file `ranm1.tcl´ is missing.
* Please attach as "ranm1.tcl.txt".


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CRCN issue
 

Sorry i miss that second thing you asked.

uname: i686
Version: Ubuntu 14.04.1 LTS \n \l

Test and random file i have attached with this. These files are new files which i created just few hours ago.

Here Test file is executing properply but when i am trying to run random file it is generating error.

I am really appriciating your help knudfl.

Thank you so much

← #5 .

The attached random.tcl.txt is a copy of the original CRCN random.tcl.
"random.tcl" is not a simulation tcl file.
Is a "movement file" to be used by a CRCN <simulation>.tcl file.


A movement file cannot be run.

$ ns-crcn test.tcl.txt : No issues here.


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CRCN Issue
 

Thank you for reply,

But i want a graphical representation of Throughput and interference measurement.

How can i get that??

Is TEXT.tr file working fine ??


Thanking you
Harsh Vaidya

← #7 .
OK, that's a new topic.

Please test and read some examples which can generate graphical output :
1) xgraph_ns2-files-tcl_11.2014.tar.gz
→ https://drive.google.com/file/d/0B7S...ew?usp=sharing
.... and read the included documentation → example4.tcl →
Marc Greis, VIII. Creating Output Files for Xgraph.

2) crcn-wcett Xgraph examples : crcn-wcett.tar.bz2

3) ns-allinone-2.3x/ns-2.3x/tcl/ex/red-pd/ → $ ./runall.sh
... which will show how to generate formats other than xgraph.
* Required : $ sudo apt-get install csh gnuplot
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Continue Error
 

Hi kundlf,

Now try this program. When i am trying to add interface and channel, it is giving me the same error.

I attaching necessary programs. please help me with this.

I am running low on my deadlines.

I really appreciate your help.



Thanking you,
Harsh

← #9 .

The file attached to post #9 works OK here :
$ ns-crcn CRCN.tcl
.. the files CRCN.nam 41.7 MB, CRCN.tr 33.5 MB are created.

what is the command :
Is it $ns CRCN.tcl or
$ns-crcn CRCN.tcl

And what system you are using ??

It is giving me the same error that i've pasted in first post.

← #12 .

$ ns-crcn :
That's the [ns-2.31 + crcn] executable built with Ubuntu 10.10 - 32bits.
Can be installed as a package, crcn-ns-2.31-ubuntu10_i386.deb
https://drive.google.com/file/d/0B7S...ew?usp=sharing
* Will work OK with most 32bits (i686) OS. ( Not WCETT on Ubuntu 14.04).

Or $ ns231-crcn : Also OK with your `CRCN.tcl´
Output files : Same sizes, 41.7 MB and 33.5 MB.
The executable was built with a contemporary OS, 27 Aug 2014.
OS = PCLinuxOS, probably version 2014.08 .

I will test if a build of [ns-2.31 + crcn] is OK with Ubuntu 14.04 - 32.
... Later.

-

← #12, #13.

Ubuntu 14.04.01 - i686 with CRCN.
$ tar xvf ns-allinone-2.31.tar.gz
$ cd ns-allinone-2.31/
$ patch -p0 crcn_ns231.patch
https://drive.google.com/file/d/0B7S...ew?usp=sharing
$ export CC=gcc41 CXX=g++41 && ./install
$ cd ns-2.31/
$ cp ns ns-crcn1404
$ sudo cp ns-crcn1404 /usr/local/bin/
.. Then only use 'ns-crcn1404' for the simulation.
I.e. plain $ ns is not to be used.
I.e. i.e. you may have another executable 'ns' on your OS.

$ ns-crcn1404 CRCN.tcl : OK.
The default examples https://drive.google.com/file/d/0B7S...ew?usp=sharing
The WCETT examples cannot be used. ( Example 5-*, 7-* ).
! And as your "test1.tcl" is WCETT : No good : the reply is →
About gcc41, g++41 : Post #47 here →
http://www.linuxquestions.org/questi...532/page4.html

-

Conclusion : You will have to use another OS to achieve full crcn functionality.

Even the 'ns-crcn' from "crcn-ns-2.31-ubuntu10_i386.deb"
isn't working fully with Ubuntu 14.04 :
$ ns-crcn test1.tcl → → Segmentation fault.

Please read post #2 about recommended OS´s.