With ABR multicast-only fast reroute (MoFRR) in the intra-AS environment, the leaf chooses a local primary ABR and a backup ABR, with separate mLDP signaling toward these two ABRs. In addition, each path from a leaf to the primary ABR and from a leaf to the backup ABR supports IGP MoFRR.
End-to End Intra-AS MoFRR is not supported, and stops at each IGP instance. MoFRR stops at the ABR if the ABR has a leaf.