Difference Between These Function Calls In A Routing Protocol In Ns2

Hey guys
I have been trying to patch GPSR with ns-2.34.The operating system i am using is ubuntu 12.04.
I have made all the necessary changes required in the various files .

I have another version of ns (ns-2.35 ) too but it is in a different directory.
Everytime I run my tcl file an error keeps coming up.
I will be greatful if somebody can help me.This is very very URGENT.


(_o29 cmd line 1)
invoked from within
"_o29 cmd if-queue _o23"
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" $..."
(procedure "_o29" line 2)
(SplitObject unknown line 2)
invoked from within
"$agent if-queue [$self set ifq_(0)] "
(procedure "_o17" line 28)
(Node/MobileNode add-target line 28)
invoked from within
"$self add-target $agent $port"
(procedure "_o17" line 15)
(Node attach line 15)
invoked from within
"$node attach $ragent [Node set rtagent_port_]"
(procedure "create-gpsr-routing-agent" line 29)
invoked from within
"create-gpsr-routing-agent $node $id"
(procedure "gpsr-create-mobile-node" line 41)
invoked from within
"gpsr-create-mobile-node $i"
("for" body line 2)
invoked from within
"for {set i 0} {$i < $opt(nn) } {incr i} {
gpsr-create-mobile-node $i
}"

I am trying to develop a new routing protocol in ns2. Although i have given a command in tcl file that should be called from command function present in .cc file. But it is not doing so.
Could we debug this and find the point where is the problem. If yes then how ?

I have heard that there are debuggers in ns2 . But this is for tcl or c++ ....
Could any one please help me ... How can i proceed further.

Thanks for ur help

Hello everyone,

I recently started using "function" and "case" in linux but I came across a slight problem

My code:

Code:

function Return
{
echo $1
}

case "$1" in 
 ""       ) echo "give parameters please";;
 [0-9]*   ) echo "No numbers please";;
 *        ) Return;;

So whenever the first parameter is a simple word I would like it returned, but it seems like there is no returned string (empty space)

Also I know I can just write "echo $1" instead of Return, but I'd like to use a function for this.

Can anyone tell me why the function doesn't return $1? Thanks!

Hi mates,

I am trying to patch ospf in ns-2.34 i have downloaded the patch file from link:

http://sourceforge.net/projects/ospf...s/ospf4ns2.34/

$ cd ns-allinone-2.34/
$ patch -p0 < 20-ospf4ns2.34-examples.patch

Using : $ cd ns-2.34/
# make install

$ cd tcl/ex/ospf/
$ mkdir out_ospf0 out_ospf1 out_ospf2 out_ospf3 out_ospf4 out_ospf5 out_ospf6 out_ospf7 out_ospf8 out_ospf9
$ ns ospf0.tcl

i followed the procedure from below LQ link post no #3

http://www.linuxquestions.org/questi...-a-4175492253/

it is successfully patchinf file but it is showing error when i execute ospf0.tcl file



Quote:
(TCL) Creating simulator & trace files...
(TCL) Setting up nodes and links...
(TCL) Configuring traffic objects...
(TCL) Configuring routing protocol...
invalid command name "Agent/rtProto/OSPF"
while executing
"Agent/rtProto/OSPF set helloInterval 1"
(file "ospf0.tcl" line 132)



pls anyone suggest me ideas to get rid of this err.

Thanks in Advance,

Pon

hello

first year of learning linux and bash script
Now i wrote a bash script with a function.
Today i recieved a email from my teacher that 1 function only can have 1 command and no more then 1?

thats a part of the script

Code:

function tx_unreachable_msg()
{
LOGLINE="[$DATE] no ip service unreachable"
typewriter "$NOIPSERVICE niet bereikbaar" .1
sleep 1 
typewriter "Mail wordt verzonden naar $email" .1
mail -s "NO ip mail error" "$email"<<EOF
dynupdate.no-ip.com niet bereikbaar @ $DATE
EOF
}

it's part dutch part english but the point is that the first LOGLINE is forbidden in the function because i use the functie to send a mail end not to write a logline but that's a part of the command in my case?

So what does this function?
If the no ip service is unreachable then it's write to /etc/var/log/no-ip and after the sleep it's send a simpel mail to the adres in the variabele mail.

i read here at the first line:
Quote:
Shell functions are a way to group commands for later execution using a single name for the group.
so is it true that my function is wrong and so no can someone point me to a website where it's say that more commands are allow in 1 function0

grts b

Hi, I need some help. I tried to install obs-ns. It´s based on ns2, but when I ran "make", the problem below appears... please I wish anybody would help me.


This is the error:

Code:

OBS/ns-2/integrated_agent.h: In constructor `BurstManager::BurstManager()':
OBS/ns-2/integrated_agent.h:86: warning: `BurstManager::bt_' will be initialized after
OBS/ns-2/integrated_agent.h:84: warning:   `int BurstManager::currburstsize_'
OBS/ns-2/integrated_agent.cc:66: warning:   when initialized here
OBS/ns-2/integrated_agent.cc: In member function `int BurstManager::nhops(nsaddr_t, nsaddr_t)':
OBS/ns-2/integrated_agent.cc:81: error: invalid conversion from `const char*' to `char*'   <------- this is the error 
OBS/ns-2/integrated_agent.cc: In member function `virtual void IPKTAgent::recv(Packet*, Handler*)':
OBS/ns-2/integrated_agent.cc:180: warning: unused variable 'ipkth'
/root/OBS/ns-allinone-2.31/tclcl-1.19/tclcl.h:150: error: `void Tcl::error(const char*)' is private
OBS/ns-2/integrated_agent.cc:185: error: within this context
OBS/ns-2/integrated_agent.cc:155: warning: unused variable 'hdr'
OBS/ns-2/integrated_agent.cc: In member function `void IPKTAgent::deBurst(Packet*)':
OBS/ns-2/integrated_agent.cc:192: warning: unused variable 'hdrip'
OBS/ns-2/integrated_agent.cc:194: warning: unused variable 'ch'
make: *** [OBS/ns-2/integrated_agent.o] Error 1

And this is the code of the program...


Code:

int BurstManager::nhops(nsaddr_t src,nsaddr_t des) {
  Tcl& tcl = Tcl::instance();
  sprintf(tcl.buffer(),"$ns nhops %d %d",src,des);
  tcl.eval();
  char *ni = tcl.result();   <------this is the line 81 
  return atoi(ni);
}

when i try to access macSuperframeOrder in new routing protocol, i am getting segmentation fault(core dumped). kindly tell me , how to access macSuperframeOrder in my newroutingprotcol.cc and to change the value based on some condition.

Hi,
I am new in linux. I have following problem while running the codes of TORA in ns-2.35 in ubuntu.Can you please help me?


num_nodes is set 6
INITIALIZE THE LIST xListHead

(_o22 cmd line 1)
invoked from within
"_o22 cmd port-dmux _o37"
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" $..."
(procedure "_o22" line 2)
(SplitObject unknown line 2)
invoked from within
"$agent port-dmux $dmux_"
(procedure "_o19" line 11)
(Node/MobileNode add-target-rtagent line 11)
invoked from within
"$self add-target-rtagent $agent $port"
(procedure "_o19" line 28)
(Node/MobileNode add-target line 28)
invoked from within
"$self add-target $agent $port"
(procedure "_o19" line 15)
(Node attach line 15)
invoked from within
"$node attach $ragent [Node set rtagent_port_]"
(procedure "_o3" line 85)
(Simulator create-wireless-node line 85)
invoked from within
"_o3 create-wireless-node"
("eval" body line 1)
invoked from within
"eval $self create-wireless-node $args"
(procedure "_o3" line 23)
(Simulator node line 23)
invoked from within
"$ns node"
invoked from within
"set n(0) [$ns node]"
(file "tora2.tcl" line 115)

I m learning Tcl and write short code. After running code i got same error repeatedly and not able to find mistake,,,i wrote it as it is from a tutorial. here is the code below

set ns [new Simulator]

set f1 [open out.nam w] #open nam file out.nam
$ns namtrace-all $f1

proc finish{} {
global ns f1
$ns flush-trace
#close $tracefile1
close $f1
exec nam out.nam &
exit 0
}


set n1 [$ns node] # 3 nodes defined
set n2 [$ns node]
set n3 [$ns node]

set duplex-link $n1 $n2 10mb 10ms Droptail
set duplex-link $n2 $n3 10mb 10ms DropTail
set duplex-link $n3 $n1 10mb 10ms DropTail

set udp1 [new Agent/UDP] #UDP agent attached to node n1
$ns attach-agent $n1 $udp1

set cbr1 [new Application/traffic/CBR]
$cbr1 set packetSize_ 500
$cbr1 set interval_ 0.005
$ns attach-agent cbr1 udp1

set null1 [new Aggent/Null]
$ns attach-agent $n2 $null1


$ns connect $udp1 $null1

$ns at 0.5 "$cbr0 start"
$ns at 4.5 "$cbr0 stop"


$ns at 12.0 "finish"

$ns run



ERROR:wrong # args: should be "set varName ?newValue?"
while executing
"set f1 [open out.nam w] #open nam file out.nam"
(file "11.tcl" line 19)

hi please can any one give me patch file for zhls (zone based hierachical link state routing protocol) in ns2?