%% You should probably cite draft-bryant-rtgwg-plfa-04 instead of this revision. @techreport{bryant-rtgwg-plfa-01, number = {draft-bryant-rtgwg-plfa-01}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-bryant-rtgwg-plfa/01/}, author = {Stewart Bryant and Uma Chunduri and Toerless Eckert}, title = {{Preferred Path Loop-Free Alternate (pLFA)}}, pagetotal = 20, year = 2020, month = dec, day = 22, abstract = {Fast re-route (FRR) is a technique that allows productive forwarding to continue in a network after a failure has occurred, but before the network has has time to re-converge. This is achieved by forwarding a packet on an alternate path that will not result in the packet looping. Preferred Path Routing (PPR) provides a method of injecting explicit paths into the routing protocol. The use of PPR to support FRR has a number of advantages. This document describes the advantages of using PPR to provide a loop-free alternate FRR path, and provides a framework for its use in this application.}, }