This is MPLS VPNv4 route, the reasons why you are not able to ping can be various.
traceroute in case of MPLS will not help much, but it can, if it is allowed in the network (it usually is not)
(do not recommend to play with it in production networks)
1.check whether the source IP of the ping is reachable for the opposite side
(on opposite side, check whether it can see in pertaining vrf the route to the source IP
the same way, as you are checking for the route on your end)
2.check whether your MPLS transport is functional!! this is crucial.
Check associated label stack to your route on your router
Check assossiations of labels for destination PE router loopback along the way
easy ...first check, whether you can ping destination PE loopback
then do traceroute for destination PE loopback
then check whether LDP is allowed all the way in traceroute
and then go one hop at a time and check labels in sh mpls forwarding-table
3. If PE-CE connections are involved, you need to check routing end-to-end in both
directions, both ends.
If you want to understand this, you need to dismantle the whole problem and go
one thing at a time.
