Re: [mpls-linux-devel] LDP query

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Hello everybody,

On 12/14/06, James R. Leu <jl...@mi...> wrote:
>
> Hello,
>
> Basically MPLS LDP (quagga-mpls + ldp-portable) is only ready for
> people who are willing to help debug.  So far I think there are three
> people besides me who have had some level of success using it.  All of
> them
> downloaded the code from my development tree and compiled it themselves.

I'm on Gentoo with a kernel 2.6.18.2 MPLS (downloaded from the repository)
and GCC 4.1.1 (Gentoo 4.1.1-r1). I would to say that I had to "modify" the
code to compile everything cleanly.

For example, If you have an error like this :
../lib/prefix.h:40: error: expected specifier-qualifier-list before 'u_char=
'
../lib/prefix.h:61: error: expected specifier-qualifier-list before 'u_char=
'
../lib/prefix.h:70: error: expected specifier-qualifier-list before 'u_char=
'
../lib/prefix.h:78: error: expected specifier-qualifier-list before 'u_char=
'
../lib/prefix.h:87: error: expected specifier-qualifier-list before 'u_char=
'
../lib/prefix.h:157: error: expected '=3D', ',', ';', 'asm' or '__attribute=
__'
before 'ip_masklen'

This SHOULD be solve by adding: #include <linux/types.h> but it didn't work
for me (don't know why). So I add them manually (it's ugly, I know)

I created a patch to show you what are my changes :
http://www.info.fundp.ac.be/~jbiscont/file/patch_compile_quagga-mpls.patch<=
http://www.info.fundp.ac.be/%7Ejbiscont/file/patch_compile_quagga-mpls.patc=
h>

This was made according to the latest version of quagga-mpls.

And this is the script to use aclocal, automake, autoconf, blablabla...

---------------------------------------------------------------------------=
-------------------
#!/bin/sh

# These commands are working on gentoo with gcc-4.1.1 (Gentoo 4.1.1-r1) and
#autoheader (GNU Autoconf) 2.60
#autoconf (GNU Autoconf) 2.60
#ltmain.sh (GNU libtool) 1.5.22 (1.1220.2.365 2005/12/18 22:14:06)
#libtoolize (GNU libtool) 1.5.22
#aclocal (GNU automake) 1.9.6
#automake (GNU automake) 1.9.6

echo "TOOLS VERIONS:"
for tool in autoheader autoconf libtool libtoolize aclocal automake; do
  $tool --version | head -1
done

aclocal
libtoolize --copy --force --automake
aclocal
autoconf
autoheader
automake --add-missing --copy
---------------------------------------------------------------------------=
---------------

Until I get more feed back from people about them being able to successfull=
y
> use MPLS LDP, I will not release a new version.

I hope it helps and don't forget to create the links for ldp-portable (it's
so obvious that you are able to forget about it ;-) )

Sincerely,

Julien

On Thu, Dec 14, 2006 at 09:09:45AM +0530, Neha Singh wrote:
> > Hello,
> >
> > Thank you for your response.
> >
> > I also want to know if the user version of MPLS LDP is available just
> like
> > the user version for the MPLS Forwarding Plane. If it is available
> please
> > provide me the link for the same.
> >
> > Regards
> >
> > Neha Singh.
> >
> >
> >
> > On 12/13/06, James R. Leu <jl...@mi...> wrote:
> > >
> > >A quick search of the archives will show that the version of
> > >LDP in the current quagga-mpls release is not designed for users (it
> > >was a development release).
> > >
> > >If you are interested in work with LDP and are willing to help
> > >in the debugging process, please download the lastest quagga-mpls from
> > >my development tree (see http://mpls-linux.sf.net for more info)
> > >
> > >Make sure to search the archive before posting to the mailing list.
> > >
> > >On Wed, Dec 13, 2006 at 02:25:35PM +0530, Neha Singh wrote:
> > >> Hello,
> > >>
> > >> We have downloaded and installed mpls (1.950) with all other
> utilities
> > >give
> > >> in the sourceforge site.
> > >>
> > >> The mpls forwarding engine works fine. we tested the same using
> "mpls"
> > >> command suite provided in iproute2 for mpls 1.950.
> > >>
> > >> Now we are trying to atuomate this using  LDP
> > >>
> > >> When we start ldpd it runs as shown below :-
> > >>
> > >> quagga   11410 11319  0 13:39 pts/1    00:00:00 /usr/sbin/ldpd -f
> > >> /etc/quagga/ldpd.conf
> > >>
> > >>
> > >> when we give the following command:-
> > >>
> > >> VPLS22> en
> > >> Password:
> > >> VPLS22# con
> > >> VPLS22# configure t
> > >> VPLS22# configure terminal
> > >> VPLS22(config)# mpl
> > >> VPLS22(config)# mpls ld
> > >> VPLS22(config)# mpls ldp
> > >> VPLS22(config-ldp)#
> > >>
> > >>
> > >> The LDPD daemon/process used to crash abruptly. Upon debugging we
> found
> > >that
> > >> "creation of ldp hello socket fails with bind error :  bind failed :
> :
> > >> Permission denied".
> > >>
> > >>
> > >> As you can see the user id with which the ldpd runs is quagga ...
> > >>
> > >>
> > >> We had tried the old version of ldp which runs with root as userid .
> it
> > >> starts with no problem and also exchanges the labels. but has
> problems
> > >in
> > >> communicating with kernel.
> > >>
> > >> Hence we downloaded the latest LDPD and mpls package (1.950) as give=
n
> in
> > >> sourceforge website.
> > >>
> > >> However when we run the ldpd it fails with the error stated above.
> > >>
> > >> Please suggest us what is to be done to over come this problem. and
> get
> > >ldp
> > >> going :-)
> > >>
> > >>
> > >> Thank you
> > >
> > >>
> >
> >------------------------------------------------------------------------=
-
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> > >> _______________________________________________
> > >> mpls-linux-devel mailing list
> > >> mpl...@li...
> > >> https://lists.sourceforge.net/lists/listinfo/mpls-linux-devel
> > >
> > >
> > >--
> > >James R. Leu
> > >jl...@mi...
> > >
> > >
> > >
>
> >
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> > https://lists.sourceforge.net/lists/listinfo/mpls-linux-devel
>
>
> --
> James R. Leu
> jl...@mi...
>
>
> -------------------------------------------------------------------------
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>
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>
>
>
>

--=20
--------------------------------------------
Julien BISCONTI <julien.bisconti(at)student.fundp.ac.be>
M.Sc. student in Computer Science, University of Namur
FUNDP, Belgium
Traineeship: UPC (Barcelona, Spain)
GSM BELGIQUE: +32 474 598 418
GSM ESPA=D1A: +34 671 168 458