[mpls-linux-general] LDP configuration example - help

[Razvan D. <raz...@gm...>]

hi,

i have managed to configure LDP on a set of mpls enabled linux
machines, but i don't quite know how to get it to work properly

i have the following simple topology

   ip network --- LER (11.0.1.1) -------- (11.0.1.2) LSR (11.0.2.1)
-------- (11.0.2.2) LSR (11.0.3.1) -------- (11.0.3.2) LER --- ip
network

i have configured zebra, ospf and ldpd; the routers do assign some
labels, but all communication is handled the old way (ip packets) (in
other words, the mpls command reveals the existence of ilm structures
only, no nhlfe or xc so there's no way to create an MPLS only
conversation)

i am using the following configuration files (for the first LSR)
(11.0.1.2--11.0.2.1)

zebra: (i know there's no need for a dummy interface, but i kept it)

hostname Router
password zebra
enable password zebra
service advanced-vty
!
mpls static 0
!
interface dummy0
 description yet another dummy interface=20
  ip address 192.168.0.3/32
  ipv6 nd suppress-ra
!
interface eth0
  description ldp-enabled interface=20
  mpls labelspace 0
  ip address 11.0.2.1/30
  ipv6 nd suppress-ra
!
interface eth1
  description ldp-enabled interface=20
  mpls labelspace 0
  ip address 11.0.1.2/30
  ipv6 nd suppress-ra
!
interface lo
  description Loopback=20
!
interface sit0
  ipv6 nd suppress-ra
!
ip forwarding
ipv6 forwarding
!
line vty
 exec-timeout 0 0
!

ldpd:

hostname ldpd
password test
enable password test
!
interface eth0
  description ldp enabled interface
  mpls ip
!
interface eth1
  description ldp enabled interface=20
  mpls ip
!
interface lo
  description Loopback interface=20
!
interface sit0
!
mpls ldp
 egress connected
!
line vty
 exec-timeout 0 0
!

i know that a labelspace is used only for ilm entries, but how do i
actually add a route that uses the mpls labels that are obtained using
ldpd?

the "ldpd# show ldp database" command shows "local binding" labels but also
"remote binding: no outlabel";

can anyone tell me what am i doing wrong (or what am i not doing
although i should)?

Razvan