project and mailing list migration

Dear List,

The NAB project has recently been migrated to a different 
hosting environment. Thanks to the time and availability of Thomas 
Schmid it is now hosted by the NESL lab at UCLA:

https://projects.nesl.ucla.edu/view/viewcvs.cgi/*checkout*/nab/trunk/doc/index.html

The mailing list is also migrating, and it's new address is at

https://mail.nesl.ucla.edu/pipermail/nab-users/

Henri DF

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cannot compile new version of NAB

Hi Henri,

When I try and compile the new version of NAB (i.e. when I type 'make 
nab-top') I get the following error message:

home/dmadadi/godi/bin//ocamlc.opt  -g  -w A    -I 
/home/dmadadi/godi/lib/ocaml/std-lib/lablgtk -I 
/home/dmadadi/godi/lib/ocaml/std-lib/gsl  -I lib  -I lib/contrib  -I gui  -I 
sim/base  -I sim/interfaces  -I sim/radios  -I sim/mac  -I sim/mob  -I 
sim/pkt  -I proto/str  -I proto/aodv  -I proto/diff  -I proto/misc  -I 
proto/ler  -I proto/rwr  -I scripts  -I proto/str/scripts -I scripts -I 
gui/data -c lib/misc.ml
File "lib/misc.ml", line 98, characters 21-31:
Unbound value Gsl_sf.erf
make: *** [lib/misc.cmo] Error 2

I have Ocaml 3.08.4 and lablgtk 1.2.6#3 installed on my gentoo system.  I 
have also been using the old version of NAB (0.6-1) on this system for a 
year with no problems.

Your help would be greatly appreciated,

Dan

make nabviz-top Error!!!

Hello All,
           I have installed ocaml-3.09 and all other dependencies as
specified in the respective README files. But, when finally
when I want to compile nab, with the gui support, it gives the
following error

---------------------------------------------------------------------------
/usr/local/bin//ocamlc.opt  -g  -w A    -I /usr/local/lib/ocaml/lablgtk -I
/usr/local/lib/ocaml/gsl  -I lib  -I lib/contrib  -I gui  -I sim/base  -I
sim/interfaces  -I sim/radios  -I sim/mac  -I sim/mob  -I sim/pkt  -I
proto/str  -I proto/aodv  -I proto/diff  -I proto/misc  -I proto/ler  -I
proto/rwr  -I scripts  -I proto/str/scripts -I scripts -I gui/data -c
gui/gui_gtk.mli
File "gui/gui_gtk.mli", line 37, characters 2-13:
Unbound type constructor GObj.widget
make: *** [gui/gui_gtk.cmi] Error 2
---------------------------------------------------------------------------
I checked the file /nab/gui/gui_gtk.mli. Since I am not so familiar with
Ocaml, I could'nt figure out what the problem was. Any help is greatly
appreciated and Thanks a zillion.

My installation paths:

/usr/local/lib/ocaml/gsl
/use/local/lib/ocaml/laglgtk2
/home/xxx/nab

Senthil Rajan,
Systems Administrator
Dept Of Computer Science,

NAB -- Help???

Hello All,
          I am a beginner to sensor network simulation. I found out NAB
simple and powerful enough for my application. A big "Thanks" to
all who developed it. I would like to know, that the set of
commands (or the NAB APIs) that we type in at the prompt (I
believe its the ocaml toplevel), is the ocaml language? (Sorry
guys, I didnt get really started on reading yet). Also another
question I have is that is there a radio model implemented in
NAB? . Any help in this direction is greatly appreciated. Thank
you all for your precious time.

Senthil Rajan,
Systems Administrator
Dept Of Computer Science,
#148 Martin Speare Bldg
NMT, Socorro 87801, U.S.A
Phone: Off - 505 835 5049
       Res - 505 385 4244

new release online

Dear nab users, 

I have (finally!) put a new release online at http://nab.epfl.ch.

New features include an RFC-compliant AODV implementation, more 
realistic MAC layers (including CSMA, collisions, contention, buffering), 
and a physical propagation model (contributed by Thomas Schmid). 

A lot of optimizations, code cleanups, and other improvements have 
happened since the first release last year. More information on new 
features and changes is in the ChangeLog.

I will soon be moving NAB to a public repository so that users can 
track changes directly from the repo. More details as soon as it 
happens...

Henri

Re: traffic nab

Hi Dominique, 

As you probably saw in the documentation in trafficgen.ml, a traffic 
generator does not integrate the notion of destination - it only generates 
the time intervals between successive packets. 

This could possibly be changed but my intent was that one trafficgen would 
model/represent one session between a pair of nodes (say a TCP dialog 
between two nodes, or a file transfer, or more generally some 
statistical process). I hadn't really foreseen generating a traffic 
pattern like what you need, but that's a perfectly reasonable one.

So I'll try to implement this over the weekend and let you know as soon as 
it's done.

henri

PS. Btw to generate traffic to multiple nodes with the current version, 
one way would be to install a trafficgen for each destination on each node. But this is not very 
scalable obviously (and in fact looking at node.mli comments not really 
working right now). 

PPS. If you need to make this work urgently, the simplest way is to create 
your own function that directly calls #originate_app_pkt (see node.mli) on 
node objects according to the traffic pattern you need

> Salut Henri!
> 
>  
> 

issues about using nab under Cygwin

Dir Sir:
   I can't make nabviz-top under Cygwin.
   I install the ocaml 3.07+2 with graghic lib successfully under a fully installed latest Cygwin. I also
could make nab-top and run through lesson1. But when i try to make nabviz-top, i encounter some problem. 
  I found i can;t install the lablgtk 1.2.7. It says error when I first install glib 1.2.9 and gtk+- 1.2.9.
  I don't know it is because the Cygwin or something else. Could you help me out?
  Thank you very much!
Best regards.
                            Computium
                            2005.05.22

could nab be used under win xp, with ocaml_win installed?

thx!
I can't use nab even i have installed ocaml-3.08.3-win-msvc.exe into my win xp  system.
i followed the readme, but when i use "make nab-top", i can not compile an interactive toplevel, even if i add
the directory correctly.
 
thx again! 

EASE/FRESH question

Re: One thing I forgot to ask...

normally a routing table should be implemented in a routing agent (see 
nab/proto/* for some examples).

to understand how packets go from mac up to routing agents and vice versa, 
look at methods mac_recv_pkt and mac_send_pkt in node.ml

henri

On Sat, 2 Apr 2005, David Lee wrote:

> Sorry, I forgot to ask this in the previous email.
> As I said, I want to implement a forwarding table on nodes, and
> forward packets to the node referred to in this table. I was looking
> at the ether, mac_null and mac_base .ml files and can't really see
> where the code that tells where to forward packets is. Could you
> explain to me how packets traverse through the network in NAB please?
> Thanks again.
> 
> Dave
>