Hello Bahri
When it comes to MPLS TE, the dynamic nature of the setup means that dynamic routing protocols should be correctly enabled and configured, and that the tunnels be configured with the dynamic path-option like so:
PE1(config-if)#tunnel mpls traffic-eng path-option 1 dynamic
This will enable the tunnel path to dynamically conform to the path with the lowest metric based on the IGP deployed. For more info on this command, take a look at this Cisco command reference:
Now it seems that your error is showing that dynamic routing is somehow not enabled. In general, to resolve this error, you would need to:
- Ensure that a TE-aware routing protocol (like OSPF or IS-IS) is configured and operational.
- Check that the TE extensions are enabled for the routing protocol.
- Verify that the tunnels are configured to allow for dynamic routing.
Now without more information about your particular case, I can’t help you troubleshoot any further. Can you give us a little more context? When are you getting that error? When you apply a particular command or is it a syslog message that appears during the operation of the MPLS network? What are your config parameters? Let us know so that we can help you further.
I hope this has been helpful!
Laz