Topology Independent Fast Reroute using Segment Routing
draft-francois-rtgwg-segment-routing-ti-lfa-00

The information below is for an old version of the document
Document Type Expired Internet-Draft (individual)
Last updated 2016-02-18 (latest revision 2015-08-17)
Replaced by draft-bashandy-rtgwg-segment-routing-ti-lfa
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at
https://www.ietf.org/archive/id/draft-francois-rtgwg-segment-routing-ti-lfa-00.txt

Abstract

This document presents Topology Independent Loop-free Alternate Fast Re-route (TI-LFA), aimed at providing link and node protection of node and adjacency segments within the Segment Routing (SR) framework. This Fast Re-route (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 operational need to control the tie-breaks among various FRR options.

Authors

Pierre Francois (pifranco@cisco.com)
Clarence Filsfils (cfilsfil@cisco.com)
Ahmed Bashandy (bashandy@cisco.com)
Bruno Decraene (bruno.decraene@orange.com)

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