Optical Busrt Switched networks

small_rz · 10-13-2012, 10:58 AM

What is the best simulator for OBS networks? Why?
Is it obs-ns? matlab? n-obs? pleaseeeeeee help me.

TB0ne · 10-13-2012, 11:16 AM

Quote:

Originally Posted by small_rz

What is the best simulator for OBS networks? Why?
Is it obs-ns? matlab? n-obs? pleaseeeeeee help me.

When you read the LQ Rules, you must have missed the part about posting rules....you posted the same question SIX TIMES...and re-opened threads that have been closed for FIVE YEARS to do it. Multiple postings are frowned upon, as is thread hijacking and reopening old threads.

And your question answers itself...you want to simulate a network...so NS2 (Network Simulator) would be what you're after. Load the OBS module into it.

knudfl · 10-15-2012, 03:50 AM

Welcome to LQ.

Your questions about NCTUns and Matlab : Both are commercial, please ask EstiNet / Matlab support.
Google .. optical-burst-switching nctuns ..
https://www.google.com/webhp?hl=all#...w=1024&bih=557

OBS-0.9b for ns-2.26 : Buggy ?
OBS for ns-2.27 is rather easy to build : ns-2.27-gcc410.patch, g++ version 3.4.6 works.
OBS for ns-2.27 : http://www.anarg.jp/personal/a-onur/ >
> http://www.anarg.jp/personal/a-onur/...-simulator.zip
> optical-burst-switching(obs)-simulator.zip : The obs files.
** optical-burst-switching.obs-simulator-ns227-patch2012.tar.gz : All obs changes incl. Makefile.in
>>> https://docs.google.com/open?id=0B7S...lNieUpnSWxBcUk
Binary package : obs-ns-2.27-ubuntu10_i386.deb >
>> https://docs.google.com/open?id=0B7S...mRQRV9ROXhQRzQ

.

linh.to · 11-09-2012, 01:36 AM

Good day Mr Knudfl.

Once again, I found your topic related to my research on OBS simulator,

Of course, OBS for ns2-2.27 is rather easier to build.

I am installing ns2-2.27 allinone, on Redhat Linux 9.0

It's successfully with pass all verification result, and I tried with tutorial from Marc Greis ns2, it's ok.

However, the most important part is to make optica-burst-switching(obs)-simulator.zip work... I found in Internet that when adding new protocol, manyone face some error when recompiling ns2.

1, Follow the guide inside of Dr Onur, I face this issue when recompile (make clean --> make)
"
make[1]: Entering directory `/home/linhth/ns-allinone-2.27/ns-2.27/indep-utils/c
mu-scen-gen/setdest'
g++ -c -Dstand_alone -DSTL_NAMESPACE=@STL_NAMESPACE@ -o setdest.o setdest.cc
In file included from ../../../config.h:54,
from setdest.h:5,
from setdest.cc:57:
../../../autoconf.h:85: namespace `CPP_NAMESPACE' undeclared
setdest.cc:71:1: warning: "INFINITY" redefined
In file included from /usr/include/math.h:40,
from setdest.cc:43:
/usr/include/bits/mathdef.h:35:1: warning: this is the location of the previous
definition
make[1]: *** [setdest.o] Error 1
make[1]: Leaving directory `/home/linhth/ns-allinone-2.27/ns-2.27/indep-utils/cm
u-scen-gen/setdest'
"

Following that is other directories happen CPP_NAMESPACE error with other files.

2, Follow your offered file: optical-burst-switching.obs-simulator-ns227-patch2012.tar.gz, I face the same issue when recompile

3, The binary package, instead, only provide ns, not nam, after installing by dpkg.

Can you please support me to solve in order to run OBS-simulator-ns2.27? Thank you so much.

knudfl · 11-09-2012, 05:42 AM

# 4 : Redhat 9 Desktop was followed by Fedora, now version 17 :
You are 17 versions behind. No support for a 10 year old OS.

Quote:

Entering directory `/home/linhth/ns-allinone-2.27/ns-2.27/indep-utils/

indep-utils/* are extra applications.
The binary ns has already been built.
And you can stop, and consider everything OK.
Nam : cd nam-1.10/ && ./configure && make

Quote:

3, The binary package, instead, only provide ns, not nam

Nam is a separate application.
Not supposed to be included in an ns package.
Imagine several **-ns packages with nam : They would conflict at install.

Nam binary, post # 4 here ..
http://www.linuxquestions.org/questi...04-a-842109/#4

.

Pinakini · 01-27-2015, 03:11 AM

hi,
knufl
how to give path to patch the obs simulator to ns2.227...
Please give me proper instruction..

Pinakini · 01-27-2015, 03:36 AM

HI, any one solve this error ...while installing obs simulator i have the following error...

in file included from optical/op-sragent.h:52,
from optical/op-classifier.h:41,
from optical/op-classifier.cc:42:
optical/op-schedule.h: At global scope:
optical/op-schedule.h:71: warning: ‘typedef’ was ignored in this declaration
optical/op-schedule.h:135: error: extra qualification ‘OpSchedule::’ on member ‘Previous’
In file included from optical/op-sragent.h:52,
from optical/op-classifier.h:41,
from optical/op-classifier.cc:42:
optical/op-schedule.h:137: error: extra qualification ‘OpSchedule::’ on member ‘ScheduleBurst2’
In file included from optical/op-sragent.h:53,
from optical/op-classifier.h:41,
from optical/op-classifier.cc:42:
optical/op-converterschedule.h:71: warning: ‘typedef’ was ignored in this declaration
optical/op-converterschedule.h:136: error: extra qualification ‘OpConverterSchedule::’ on member ‘Previous’
In file included from optical/op-sragent.h:53,
from optical/op-classifier.h:41,
from optical/op-classifier.cc:42:
optical/op-converterschedule.h:138: error: extra qualification ‘OpConverterSchedule::’ on member ‘ScheduleBurst2’
In file included from optical/op-sragent.h:54,
from optical/op-classifier.h:41,
from optical/op-classifier.cc:42:
optical/op-fdlschedule.h:71: warning: ‘typedef’ was ignored in this declaration
optical/op-fdlschedule.h:140: error: extra qualification ‘OpFDLSchedule::’ on member ‘Previous’
In file included from optical/op-sragent.h:54,
from optical/op-classifier.h:41,
from optical/op-classifier.cc:42:
optical/op-fdlschedule.h:142: error: extra qualification ‘OpFDLSchedule::’ on member ‘ScheduleBurst2’
make: *** [optical/op-classifier.o] Error 1

knudfl · 01-27-2015, 06:01 AM

← Posts #6, #7, @Pinakini : Welcome to LQ.

Please read http://www.linuxquestions.org/questi...estion.-71791/
. http://www.linuxquestions.org/linux/...Ask_a_Question
... I.e. no precise answer is available for <unknown OS>.

Answer the questions to you : Your other thread here ...
http://network-simulator-ns-2.7690.n...89.html#a29590
$ uname -m
OS version.

OBS build example : $ tar xvf ns-allinone-2.27.tar.gz
$ patch -p0 < ns-2.27-gcc410.patch
https://drive.google.com/file/d/0B7S...ew?usp=sharing
$ cd ns-allinone-2.27/
$ patch -p0 < obs_optical-burst-switching_ns227.patch
https://drive.google.com/file/d/0B7S...ew?usp=sharing
$ export CC=gcc34 CXX=g++34 && ./install
→ → → g++ must be version 3.4.6 .
$ cd ns-2.27/
$ cp ns ns227-obs
# cp ns227-obs /usr/local/bin/

-

Pinakini · 01-28-2015, 04:37 AM

Hi, knufl

I have installed ubuntu 10.04 32 bit os....
Do the step as you say...
But validation process give the corrupt error....
How can i resolve it?

Pinakini · 01-28-2015, 04:40 AM

I have installed ubuntu 10.04 32 bit os....
is this compulsary to patch gcc410 patch??

knudfl · 01-28-2015, 06:56 AM

← #10 .

OK, Ubuntu 10.04 - 32 : Install the compilers :
1) $ sudo apt-get install g++-4.1

2) Download gcc34-compat, g++34-compat ...
https://drive.google.com/file/d/0B7S...ew?usp=sharing
→ gcc34-compat-3.4.6_i386.deb
https://drive.google.com/file/d/0B7S...ew?usp=sharing
→ g++34-compat-3.4.6_i386.deb
Install gcc34-compat, g++34-compat : $ sudo dpkg -i \
gcc34-compat-3.4.6_i386.deb g++34-compat-3.4.6_i386.deb
$ cd /usr/bin/
$ sudo ln -s ../gcc34/bin/gcc34
$ sudo ln -s ../gcc34/bin/g++34

Quote:

is this compulsary to patch gcc410 patch ?

Why ask ? Adding a patch is an easy / basic thing to do.

Ubuntu 10.04 - 32 : The build command for OBS is :
$ export CC=gcc-4.1 CXX=g++34 && ./install

← #9 : You can skip the 'make test' = ./validate .
Nothing you can do if you get an inferior result.
Anyway "optical-burst-switching" will work OK : $ ns227-obs.

Pinakini · 01-28-2015, 08:32 AM

thank you so much knufl...
i am asked that question because i have successfully installed ns2.27 in ubuntu10.04.
But have problem with only obs simulator patch...
the tcl script given within it sim20_7b.tcl give the corrupt error while i run it...

knudfl · 01-28-2015, 09:06 AM

← #12 .

$ cd ns-allinone-2.27/ns-2.27/ && ./ns sim20_7b.tcl
Or using any old or new executable 'ns227-obs' :
$ ns227-obs sim20_7b.tcl
→ → I get this result :

Code:

warning: no class variable ONA::agent_addr_
	see tcl-object.tcl in tclcl for info about this warning.
warning: no class variable ONA::agent_port_
warning: no class variable ONA::dst_addr_
warning: no class variable ONA::dst_port_
warning: no class variable ONA::fid_
warning: no class variable ONA::prio_
warning: no class variable ONA::flags_
warning: no class variable ONA::ttl_
warning: no class variable ONA::class_
warning: no class variable ONA::debug_

fdlnumber_ 0
fdlnumber_ 0
record 1 DEBUG 3 at 2.008002064516129
corrupt error 0
record 1 DEBUG 3 at 2.020016833548387
record 2 DEBUG 3 at 2.039072895483871
corrupt error 0
record 4 DEBUG 3 at 2.070211659354840
corrupt error 0
record 8 DEBUG 3 at 2.101367063225808
corrupt error 0
record 16 DEBUG 3 at 2.132555747096777
corrupt error 0
record 20 DEBUG 3 at 2.157830861935484
corrupt error 0
.
.
.

... I have no solution, sorry.

-

knudfl · 01-28-2015, 09:10 AM

One file is a usable output (may be) : stat.txt

You can do $ xgraph stat.txt

-

Pinakini · 01-28-2015, 09:18 AM

ok...knufl...
then how to know that obs-simulator is working properly?
Is this error occur because of tcl script or you have properly working obs simulator then also same problem?