Hello Dorel
Keep in mind that each LSP tunnel will take a specific physical path through the MPLS topology. The tunnel itself cannot be load-balanced across two physical links. The only way to achieve load balancing of the traffic is to create two tunnels and load balance across them.
If you do this, you should be able to achieve load balancing between tunnels that go through different links. Now keep in mind that there are two mechanisms working here:
- The first has to do with the path that each individual tunnel takes
- The second has to do with how traffic is balanced between tunnels.
These are independent operations and are configured separately. In order to achieve what you are describing, you need to configure two TE tunnels, and make sure one tunnel goes over one physical link between your P routers, and create another tunnel and make sure it goes over the other physical link. This can be done in various ways. One way is to use explicit paths.
Once you have set up your tunnels to take the paths you want, you can then configure load balancing across the two tunnels just like in the lesson. Does that make sense?
I hope this has been helpful!
Laz