Re: [mpls-linux-devel] MPLS-Linux-1.955 FC5

[James R. L. <jl...@mi...>]

You will need to run OSPF (or create static routes) before LDP will
operate correctly.

On Fri, Mar 09, 2007 at 12:41:37PM +0100, Sienes Rodr?guez Gonzalo wrote:
> Hi:
>=20
> This is what I tried. I launch only zebra and ldpd on both LSRs and I spe=
cify the routes for PE1 to reach 13.1 and for PE2 to 12.1:
>=20
>                   eth0   eth1             eth1   eth0
>        12.0.0.1-------PE1---------------------PE2-------13.0.0.1
>                          .1  10.0.0.0/24    .2
>=20
> As you could see the label 10000 is distributed correctly, but the routes=
 are created only in vtysh with that label. Although nhlfe and ilm are upda=
ted, the mpls route doesn't appear.
>=20
> Thanks in advance,
>=20
> Gonzalo.
>=20
> PE1 configuration:
> -----------------------------------------------------------------------
>=20
> [root@PE1 ~]# ip route add 13.0.0.0/24 via 10.0.0.2
> [root@PE1 ~]# ip route
> 10.0.0.0/24 dev eth1  proto kernel  scope link  src 10.0.0.1
> 12.0.0.0/24 dev eth0  proto kernel  scope link  src 12.0.0.1
> 13.0.0.0/24 via 10.0.0.2 dev eth1
> [root@PE1 ~]# zebra -d
> [root@PE1 ~]# ldpd -d
> [root@PE1 ~]# lsmod | grep mpls
> mpls4                  10240  0
> [root@PE1 ~]# ps -e | grep ze
>  2724 ?        00:00:00 zebra
> [root@PE1 ~]# ps -e | grep ldp
>  2726 ?        00:00:00 ldpd
> [root@PE1 ~]# vtysh
>=20
> Hello, this is Quagga (version 0.99.6).
> Copyright 1996-2005 Kunihiro Ishiguro, et al.
>=20
> PE1# con t
> PE1(config)# mpls ldp
> PE1(config-ldp)# ex
> PE1(config)# int eth1
> PE1(config-if)# mpls ip
> PE1(config-if-ldp)# ex
> PE1(config-if)# mpls labelsp 0
> Labelspace: 0
> PE1(config-if)# end
> PE1# sh run
> Building configuration...
>=20
> Current configuration:
> !
> hostname PE1
> hostname uml-1
> !
> password root
> enable password root
> !
> interface eth0
>  ipv6 nd suppress-ra
> !
> interface eth1
>  ipv6 nd suppress-ra
>  mpls ip
>  mpls labelspace 0
> !
> interface lo
> !
> interface sit0
>  ipv6 nd suppress-ra
> !
> mpls ldp
>  egress connected
> !
> ip forwarding
> !
> line vty
> !
>=20
> PE1# sh ldp disc
>=20
> Local LSR Identifier: 12.0.0.1
>=20
> Interface Discovery Sources:
>         eth1: xmit/recv
>             LDP Id: 10.0.0.2:0
>=20
> Targeted Discovery Sources:
>         No configured peers
>=20
> PE1# sh ldp neig
> Peer LDP Ident: 10.0.0.2:0; Local LDP Ident: 12.0.0.1:0
>         TCP connection: 10.0.0.1.34306 - 10.0.0.2.39775
>         State: OPERATIONAL; Msgs sent/recv: 12/35; UNSOLICITED
>         Up time: 00:01:53
>         LDP discovery sources:
>           eth1
>         Addresses bound to peer:
>           10.0.0.2      13.0.0.1
>=20
>=20
> PE1# sh ldp ses
> 4  10.0.0.2 45  OPERATIONAL
>         10.0.0.2
>         13.0.0.1
>=20
> PE1# sh ip route
> Codes: K - kernel route, C - connected, S - static, R - RIP, O - OSPF,
>        I - ISIS, B - BGP, > - selected route, * - FIB route
>=20
> C>* 10.0.0.0/24 is directly connected, eth1
> C>* 12.0.0.0/24 is directly connected, eth0
> K>  13.0.0.0/24 via 10.0.0.2, eth1 (label 10000)
> C>* 127.0.0.0/8 is directly connected, lo
>=20
> PE1# ping 13.1
> connect: Network is unreachable
>=20
> PE1# sh lpd ses
> % Unknown command.
> PE1# sh lpd ses
> % Unknown command.
> PE1# sh ldp dis
>=20
> Local LSR Identifier: 10.0.0.1
>=20
> Interface Discovery Sources:
>         eth1: xmit/recv
>             LDP Id: 10.0.0.2:0
>=20
> Targeted Discovery Sources:
>         No configured peers
>=20
> PE1# sh ldp neigh
> Peer LDP Ident: 10.0.0.2:0; Local LDP Ident: 10.0.0.1:0
>         TCP connection: 10.0.0.1.34306 - 10.0.0.2.34166
>         State: OPERATIONAL; Msgs sent/recv: 26/77; UNSOLICITED
>         Up time: 00:05:28
>         LDP discovery sources:
>           eth1
>         Addresses bound to peer:
>           10.0.0.2      13.0.0.1
>=20
>=20
> [root@PE1 ~]# mpls nhlfe
> NHLFE entry key 0x00000002 mtu 1496 propagate_ttl
>         push gen 10000 set eth1 ipv4 10.0.0.2  (0 bytes, 0 pkts)
> [root@PE1 ~]# mpls ilm
> ILM entry label gen 10000 labelspace 0 proto ipv4
>         pop peek  (0 bytes, 0 pkts)
>=20
> [root@PE1 ~]# ip route
> 10.0.0.0/24 dev eth1  proto kernel  scope link  src 10.0.0.1
> 12.0.0.0/24 dev eth0  proto kernel  scope link  src 12.0.0.1
>=20
> [root@PE1 ~]#
> [root@PE1 ~]# mpls nhlfe
> NHLFE entry key 0x00000002 mtu 1496 propagate_ttl
>         push gen 10000 set eth1 ipv4 10.0.0.2  (0 bytes, 0 pkts)
> [root@PE1 ~]# mpls ilm
> ILM entry label gen 10000 labelspace 0 proto ipv4
>         pop peek  (0 bytes, 0 pkts)
> [root@PE1 ~]# ip route
> 10.0.0.0/24 dev eth1  proto kernel  scope link  src 10.0.0.1
> 12.0.0.0/24 dev eth0  proto kernel  scope link  src 12.0.0.1
> [root@PE1 ~]#
>=20
> PE3 configuration:
> -----------------------------------------------------------------------
>=20
> [root@PE3 ~]# ip route add 12.0.0.0/24 via 10.0.0.1
>=20
> [root@PE3 ~]# ip route
> 10.0.0.0/24 dev eth1  proto kernel  scope link  src 10.0.0.2
> 12.0.0.0/24 via 10.0.0.1 dev eth1
> 13.0.0.0/24 dev eth0  proto kernel  scope link  src 13.0.0.1
>=20
> [root@PE3 ~]# zebra -d
> [root@PE3 ~]# ldpd -d
> [root@PE3 ~]# vtysh
>=20
> Hello, this is Quagga (version 0.99.6).
> Copyright 1996-2005 Kunihiro Ishiguro, et al.
>=20
> PE3# con t
> PE3(config)# mpls ldp
> PE3(config-ldp)# ex
> PE3(config)# int eth1
> PE3(config-if)# mpls ip
> PE3(config-if-ldp)# ex
> PE3(config-if)# mpls labelsp 0
> Labelspace: 0
> PE3(config-if)# end
> PE3# sh run
> Building configuration...
>=20
> Current configuration:
> !
> hostname PE3
> hostname uml-1
> !
> password root
> enable password root
> !
> interface eth0
>  ipv6 nd suppress-ra
> !
> interface eth1
>  ipv6 nd suppress-ra
>  mpls ip
>  mpls labelspace 0
> !
> interface eth2
>  ipv6 nd suppress-ra
> !
> interface lo
> !
> interface sit0
>  ipv6 nd suppress-ra
> !
> mpls ldp
>  egress connected
> !
> ip forwarding
> !
> line vty
>=20
> PE3# sh ip route
> Codes: K - kernel route, C - connected, S - static, R - RIP, O - OSPF,
>        I - ISIS, B - BGP, > - selected route, * - FIB route
>=20
> C>* 10.0.0.0/24 is directly connected, eth1
> K>  12.0.0.0/24 via 10.0.0.1, eth1 (label 10000)
> C>* 13.0.0.0/24 is directly connected, eth0
> C>* 127.0.0.0/8 is directly connected, lo
> K>* 169.254.0.0/16 is directly connected, eth1
> PE3# ping 12.1
> connect: Network is unreachable
>=20
> PE3# sh ldp ses
> 3  8.162.7.240 45  OPERATIONAL
>         10.0.0.1
>         12.0.0.1
> PE3# sh ldp disc
>=20
> Local LSR Identifier: 10.0.0.2
>=20
> Interface Discovery Sources:
>         eth1: xmit/recv
>             LDP Id: 10.0.0.1:0
>=20
> Targeted Discovery Sources:
>         No configured peers
>=20
> PE3# sh ldp neigh
> Peer LDP Ident: 10.0.0.1:0; Local LDP Ident: 10.0.0.2:0
>         TCP connection: 10.0.0.2.30341 - 10.0.0.1.646
>         State: OPERATIONAL; Msgs sent/recv: 21/62; UNSOLICITED
>         Up time: 00:04:06
>         LDP discovery sources:
>           eth1
>         Addresses bound to peer:
>           10.0.0.1      12.0.0.1
>=20
>=20
> [root@PE3 ~]# ip route
> 10.0.0.0/24 dev eth1  proto kernel  scope link  src 10.0.0.2
> 13.0.0.0/24 dev eth0  proto kernel  scope link  src 13.0.0.1
>=20
> [root@PE3 ~]# mpls nhlfe
> NHLFE entry key 0x00000002 mtu 1496 propagate_ttl
>         push gen 10000 set eth1 ipv4 10.0.0.1  (0 bytes, 0 pkts)
> [root@PE3 ~]# mpls ilm
> ILM entry label gen 10000 labelspace 0 proto ipv4
>         pop peek  (0 bytes, 0 pkts)
>=20
>=20



--=20
James R. Leu
jl...@mi...