{"draft":"draft-ietf-pim-mofrr-tilfa-14","doc_id":"RFC9860","title":"Multicast-Only Fast Reroute (MoFRR) Based on Topology Independent Loop-Free Alternate (TI-LFA) Fast Reroute","authors":["Y. Liu","M. McBride","Z. Zhang","J. Xie","C. Lin"],"format":["HTML","TEXT","PDF","XML"],"page_count":"14","pub_status":"INFORMATIONAL","status":"INFORMATIONAL","source":"Protocols for IP Multicast","abstract":"This document specifies the use of Topology Independent Loop-Free\r\nAlternate (TI-LFA) mechanisms with Multicast-only Fast Reroute\r\n(MoFRR) for Protocol Independent Multicast (PIM). The TI-LFA provides\r\nFast Reroute (FRR) protection for unicast traffic in IP networks by\r\nprecomputing backup paths that avoid potential failures. By\r\nintegrating TI-LFA with MoFRR, this document extends the benefits of\r\nFRR mechanisms to multicast traffic, enabling enhanced resilience and\r\nminimized packet loss in multicast networks. The document outlines an\r\noptional approach to implement TI-LFA in conjunction with MoFRR for\r\nPIM, ensuring that multicast traffic is rapidly rerouted in the event\r\nof a failure.","pub_date":"October 2025","keywords":["PIM","MoFRR","LFA","TI-LFA","SR-MPLS","SRv6","RPF Vector","Join attribute"],"obsoletes":[],"obsoleted_by":[],"updates":[],"updated_by":[],"see_also":[],"doi":"10.17487\/RFC9860","errata_url":null}