Currently the WAN consists of 4 main(core) sites SANDTON, CPT, DURBAN and PE. Below is a drawing of the core of the network. The problem is that if the SANDTON-DURBAN or SANDTON-CPT links fail then the SANDTON-PE link is over utilized. During normal operation there is no or there is a very little traffic on the DURBAN PE and CPT PE link. The routing protocol is ospf. Will I be able to create ECMP on this network structure or does it rely on the number of hops.