Yes, that was it. <br><br>"mpls ip" was not enabled on an interface. <br><br>Now everything works <img goomoji="360" style="margin: 0pt 0.2ex; vertical-align: middle;" src="cid:360@goomoji.gmail"><br>(and hopefully my MPLS-troubleshooting skills improved a bit)<br>
<br>Thank you ALL<br><br><br><div class="gmail_quote">On Mon, May 3, 2010 at 11:17 PM, Yuri Bank <span dir="ltr"><<a href="mailto:yuribank@gmail.com">yuribank@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
I agree with the previous comment. If MPLS/LDP is already enabled, check to<br>
make sure your LDP sessions are working correctly. Do show mpls ldp neighbor<br>
<br>
-Yuri<br>
<div><div></div><div class="h5"><br>
On Mon, May 3, 2010 at 12:04 PM, Shimol Shah <<a href="mailto:shimshah@cisco.com">shimshah@cisco.com</a>> wrote:<br>
<br>
> Is MPLS/LDP enabled and up between the two boxes ? Notice the outgoing<br>
> "untagged" in the global LFIB on both boxes. I would have expected a<br>
> "imp-null" due to PHP<br>
><br>
> "sh mpls int <> int" on two boxes may tell you more.<br>
><br>
><br>
><br>
><br>
> On 5/3/10 2:14 PM, selamat pagi wrote:<br>
><br>
>> Setup<br>
>> CE (loopback 3 on R3 vrf BLUE ) - PE1 R3 - MPLS -- PE2 R4 -- CE<br>
>> (loopback4 on R4 vrf BLUE<br>
>><br>
>> *ping between lo 3 and lo 4 does not work. *<br>
>> both lo are in vrf BLUE<br>
>><br>
>> - vrf routing table show routes / vpnv4 BGP neigbor is up<br>
>><br>
>> R3#sh ip route vrf BLUE<br>
>> !<br>
>> <a href="http://3.0.0.0/32" target="_blank">3.0.0.0/32</a> is subnetted, 1 subnets<br>
>> C 3.3.3.3 is directly connected, Loopback3<br>
>> <a href="http://4.0.0.0/32" target="_blank">4.0.0.0/32</a> is subnetted, 1 subnets<br>
>> B 4.4.4.4 [200/0] via 150.1.4.4, 00:07:27<br>
>><br>
>><br>
>> R3#sh ip bgp vpnv4 all su<br>
>> !<br>
>> Neighbor V AS MsgRcvd MsgSent TblVer InQ OutQ Up/Down<br>
>> State/PfxRcd<br>
>> 150.1.4.4 4 100 15 16 5 0 0 00:09:52<br>
>><br>
>><br>
>><br>
>> Such a simple setup, but I just cannot figure out what's wrong.<br>
>> Any feedback is highly welcome :-)<br>
>><br>
>> cheers, keti<br>
>><br>
>> Configuration / sh outputs<br>
>> ------------------------------------<br>
>> R3<br>
>> ip vrf BLUE<br>
>> rd 1:100<br>
>> route-target export 1:100<br>
>> route-target import 1:100<br>
>> !<br>
>> interface Loopback3<br>
>> ip vrf forwarding BLUE<br>
>> ip address 3.3.3.3 255.255.255.255<br>
>> router bgp 100<br>
>> no synchronization<br>
>> bgp log-neighbor-changes<br>
>> neighbor 150.1.4.4 remote-as 100<br>
>> neighbor 150.1.4.4 update-source Loopback0<br>
>> no auto-summary<br>
>> !<br>
>> address-family vpnv4<br>
>> neighbor 150.1.4.4 activate<br>
>> neighbor 150.1.4.4 send-community both<br>
>> exit-address-family<br>
>> !<br>
>> address-family ipv4 vrf BLUE<br>
>> redistribute connected<br>
>> no auto-summary<br>
>> no synchronization<br>
>> exit-address-family<br>
>><br>
>><br>
>> R4<br>
>><br>
>> ip vrf BLUE<br>
>> rd 1:100<br>
>> route-target export 1:100<br>
>> route-target import 1:100<br>
>><br>
>> interface Loopback4<br>
>> ip vrf forwarding BLUE<br>
>> ip address 4.4.4.4 255.255.255.255<br>
>><br>
>> router bgp 100<br>
>> no synchronization<br>
>> bgp log-neighbor-changes<br>
>> neighbor 150.1.3.3 remote-as 100<br>
>> neighbor 150.1.3.3 update-source Loopback0<br>
>> no auto-summary<br>
>> !<br>
>> address-family vpnv4<br>
>> neighbor 150.1.3.3 activate<br>
>> neighbor 150.1.3.3 send-community both<br>
>> exit-address-family<br>
>> !<br>
>> address-family ipv4 vrf BLUE<br>
>> redistribute connected<br>
>> no auto-summary<br>
>> no synchronization<br>
>> exit-address-family<br>
>> !<br>
>><br>
>><br>
>> R3#sh ip cef vrf BLUE 4.4.4.4 det<br>
>> <a href="http://4.4.4.4/32" target="_blank">4.4.4.4/32</a>, version 2, epoch 0, cached adjacency to Serial2/0<br>
>> 0 packets, 0 bytes<br>
>> tag information set<br>
>> local tag: VPN-route-head<br>
>> fast tag rewrite with<br>
>> Recursive rewrite via <a href="http://150.1.4.4/32" target="_blank">150.1.4.4/32</a>, tags imposed {19}<br>
>> via 150.1.4.4, 0 dependencies, recursive<br>
>> next hop 150.1.13.1, Serial2/0 via <a href="http://150.1.4.4/32" target="_blank">150.1.4.4/32</a><br>
>> valid cached adjacency<br>
>> tag rewrite with<br>
>> Recursive rewrite via <a href="http://150.1.4.4/32" target="_blank">150.1.4.4/32</a>, tags imposed {19}<br>
>><br>
>><br>
>> R3#sh mpls forwarding-table<br>
>> Local Outgoing Prefix Bytes tag Outgoing Next Hop<br>
>> tag tag or VC or Tunnel Id switched interface<br>
>> 16 Untagged <a href="http://150.1.24.0/24" target="_blank">150.1.24.0/24</a> 0 Se2/0 point2point<br>
>> 17 Untagged <a href="http://150.1.4.4/32" target="_blank">150.1.4.4/32</a> 0 Se2/0 point2point<br>
>> 18 Untagged <a href="http://150.1.12.0/24" target="_blank">150.1.12.0/24</a> 0 Se2/0 point2point<br>
</div></div>>> 19 Aggregate <a href="http://3.3.3.3/32[V]" target="_blank">3.3.3.3/32[V]</a> <<a href="http://3.3.3.3/32%5BV%5D" target="_blank">http://3.3.3.3/32%5BV%5D</a>> 0<br>
<div class="im">>> R3#<br>
>> R4#sh mpls forwarding-table<br>
>> Local Outgoing Prefix Bytes tag Outgoing Next Hop<br>
>> tag tag or VC or Tunnel Id switched interface<br>
>> 16 Untagged <a href="http://150.1.3.3/32" target="_blank">150.1.3.3/32</a> 0 Se2/0.1 point2point<br>
>> 17 Untagged <a href="http://150.1.13.0/24" target="_blank">150.1.13.0/24</a> 0 Se2/0.1 point2point<br>
>> 18 Untagged <a href="http://150.1.12.0/24" target="_blank">150.1.12.0/24</a> 0 Se2/0.1 point2point<br>
</div>>> 19 Aggregate <a href="http://4.4.4.4/32[V]" target="_blank">4.4.4.4/32[V]</a> <<a href="http://4.4.4.4/32%5BV%5D" target="_blank">http://4.4.4.4/32%5BV%5D</a>> 0<br>
<div><div></div><div class="h5">>> R4#<br>
>><br>
>> R4#sh ip cef vrf BLUE 3.3.3.3<br>
>> <a href="http://3.3.3.3/32" target="_blank">3.3.3.3/32</a>, version 2, epoch 0, cached adjacency to Serial2/0.1<br>
>> 0 packets, 0 bytes<br>
>> tag information set<br>
>> local tag: VPN-route-head<br>
>> fast tag rewrite with<br>
>> Recursive rewrite via <a href="http://150.1.3.3/32" target="_blank">150.1.3.3/32</a>, tags imposed {19}<br>
>> via 150.1.3.3, 0 dependencies, recursive<br>
>> next hop 150.1.24.2, Serial2/0.1 via <a href="http://150.1.3.3/32" target="_blank">150.1.3.3/32</a><br>
>> valid cached adjacency<br>
>> tag rewrite with<br>
>> Recursive rewrite via 150.1.<br>
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>><br>
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</div></div></blockquote></div><br>