Topology Independent Fast Reroute using Segment Routing

Document Type Expired Internet-Draft (individual)
Authors Pierre Francois  , Clarence Filsfils  , Ahmed Bashandy  , Bruno Decraene 
Last updated 2014-05-22 (latest revision 2013-11-18)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document presents a Fast Reroute (FRR) approach aimed at providing link and node protection of node and adjacency segments within the Segment Routing (SR) framework. This FRR behavior builds on proven IP-FRR concepts being LFAs, remote LFAs (RLFA), and remote LFAs with directed forwarding (DLFA). It extends these concepts to provide guaranteed coverage in any IGP network. We accommodate the FRR discovery and selection approaches in order to establish protection over post-convergence paths from the point of local repair, dramatically reducing the operator's need to control the tie- breaks among various FRR options.


Pierre Francois (
Clarence Filsfils (
Ahmed Bashandy (
Bruno Decraene (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)