Configuration guidelines

Do not use static route FRR and BFD (for a static route) at the same time.

Static route does not take effect when the backup output interface is unavailable.

Equal-cost routes do not support static route FRR.

The backup output interface and next hop cannot be modified, and cannot be the same as the primary output interface and next hop.

Static route FRR is available only when the state of primary link (with Layer 3 interfaces staying up) changes from bidirectional to unidirectional or down.