[mpls-linux-general] [mpls example]question still exists

[allen <as...@gm...>]

Hello:

I have already modified my configuration. But the question still exists.
When LER1 receives the "ping" packet from HostA. LER1 uses the label =
1000, but doesn't send to LSR. I saw the problem is LER1's and LER1's =
nhlfe table is=20

NHLFE entry key 0x00000003 mtu 1500 propagate_ttl
set eth0 ipv4 192.168.100.10 (0 bytes, 0 pkts, 0 dropped)
NHLFE entry key 0x00000002 mtu 1500 propagate_ttl
(1596 bytes, 19 pkts, 19 dropped)

the packets never leaves LER1. Please see my configuration once again, =
then tell me how should I do.


                        192.168.101.0/24               192.168.103.0/24
                               |                              |
                               |                              |
 ------eth0    eth0------eth1  v  eth1----eth0  eth0---eth1   v   =
eth1------
| HostA |--------| LER1  |---------|  LSR  |-----|  LER2 |----------| =
HostB |
 ------.10  ^   20-------20        30-----30  ^  40-----40          =
50------
            |                                 |
            |                                 |=20
      192.168.100.0/24                  192.168.102.0/24


Configuration
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=
=3D=3D=3D=3D
HostA
------
ip route add 192.168.103.0/24 via 192.168.100.20

LER1
------
mpls nhlfe add key 0 instructions push gen 1000 nexthop eth0 ipv4 =
192.168.100.20
(key: 0x00000002)
ip route add 192.168.103.0/24 via 192.168.101.30 spec_nh 0x8847 0x2
mpls labelspace add dev eth1 labelspace 0
mpls ilm add label gen 1002 labelspace 0
mpls nhlfe add key 0 instructions nexthop eth0 ipv4 192.168.100.10
(key: 0x00000003)
mpls xc add ilm_label gen 2002 ilm_labelspace 0 nhlfe_key 0x3

LSR
-----
mpls nhlfe add key 0 instructions push gen 2000 nexthop eth0 ipv4 =
192.168.102.40
(key: 0x00000002)
mpls nhlfe add key 0 instructions push gen 2002 nexthop eth1 ipv4 =
192.168.101.20
(key: 0x00000003)
mpls labelspace add dev eth0 labelspace 0
mpls labelspace add dev eth1 labelspace 0
mpls ilm add label gen 1000 labelspace 0
mpls ilm add label gen 1002 labelspace 0=20
mpls xc add ilm_label gen 1000 ilm_labelspace 0 nhlfe_key 0x2
mpls xc add ilm_label gen 1002 ilm_labelspace 0 nhlfe_key 0x3

LER2
-----
mpls nhlfe add key 0 instructions push gen 1002 nexthop eth1 ipv4 =
192.168.103.40
(key: 0x00000002)
ip route add 192.168.100.0/24 via 192.168.103.40 spec_nh 0x8847 0x2
mpls labelspace add dev eth0 labelspace 0
mpls ilm add label gen 2000 labelspace 0
mpls nhlfe add key 0 instructions nexthop eth1 ipv4 192.168.103.50
(key: 0x00000003)
mpls xc add ilm_label gen 2000 ilm_labelspace 0 nhlfe_key 0x3

HostB
------
ip route add 192.168.100.0/24 via 192.168.103.40