[mpls-linux-general] Linux-LDP configuration

[Yvan P. <yv...@vi...>]

Hi,

I would like to try the Linux LDP implementation but I can t make it work.
There has been some discussion on this list about it lately so I hope
somebody will be able to help me...

Here is my topology:

Note: I use networks 10.0.x/24 (x=1..4).

10.0.1.2                                                         10.0.4.3
   | eth2                                                           | eth2
   |                                                                |
   | eth2                                                           | eth2
10.0.1.3 LER A 10.0.2.2----10.0.2.3 LSR 10.0.3.2----10.0.3.3 LER B 10.0.4.2
                eth3         eth3         eth4         eth4


LER A, LER B and LSR are (obviously) MPLS-enabled, but 10.0.1.2 and
10.0.4.3 are just regular BSD, MPLS-unaware, workstations.

I installed MPLS for Linux 0.700 (kernel 2.4.0-test11) and can monitor
MPLS encapsulation thanks to ethereal on one of the MPLS-enabled machines.
To do this, I set up the LSPs manually.

Now, I would like LDP to set up the paths for me. I use the last version
of ldp-linux (grabbed with CVS), I do not use zebra but the linux-port
version compiled with -DMPLS_LINUX.

On LER A:               On LSR:                 On LER B:
add global 10.0.1.3     add global 10.0.2.3     add global 10.0.4.2
add interface eth3      add interface eth3      add interface eth4
                        add interface eth4


Now I still have traffic between 10.0.1.2 and 10.0.4.3 but it does not use
any MPLS LSP, just static routing.
When I cat the /proc mpls files on any MPLS router, only mpls_in is not
empty.

What can I do to get the expected result, ie get linux-LDP set an LSP
between LER A and LER B (and LER B to LER A) ?

This is a very simple topology so I hope that someone already tried it.

Any help deeply appreciated,

 Yvan Pointurier
________________________________________________________________________
 yv...@vi...                               University of Virginia
 http://www.cs.virginia.edu/~yp9x/       Department of Computer Science