MPLS only work one way

RouterOS Forwarding Protocols
1

Hi all.

I just started with MPLS/VPLS and I noticed that I can’t get my tunnels up and running.
Then I started with traceroute and I found that I can reach routerD from routerA via MPLS (trought RouterB and routerC) but from routerD I can’t reach routerA. There is only normal trace, no MPLS.
I use OSPF. RouterA and routerB are in area while routerC and routerD are in backbone area.
Any ideas? Suggestions?

2

Anyone have any idea?

3
  1. Check your routes and ensure that you aren’t summarizing routes
  2. Post a diagram with subnets
  3. Check that all (L2/MPLS) MTUs are at least capable of 1526 for untagged vpls and 1530 for tagged VPLS
  4. Check to ensure that LDP is enabled and has built a label switched path through the network