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Topology Independent Fast Reroute using Segment Routing
draft-ietf-rtgwg-segment-routing-ti-lfa-08

Document Type Expired Internet-Draft (rtgwg WG)
Authors Stephane Litkowski , Ahmed Bashandy , Clarence Filsfils , Pierre Francois , Bruno Decraene , Daniel Voyer
Last updated 2022-07-25 (Latest revision 2022-01-21)
Replaces draft-bashandy-rtgwg-segment-routing-ti-lfa
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Formats
Expired & archived
Reviews
Stream WG state WG Document
Document shepherd Stewart Bryant
IESG IESG state Expired
Consensus boilerplate Unknown
Telechat date (None)
Responsible AD (None)
Send notices to stewart.bryant@gmail.com

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:

Abstract

This document presents Topology Independent Loop-free Alternate Fast Re-route (TI-LFA), aimed at providing 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 two connected network using a link-state IGP. A key aspect of TI-LFA is the FRR path selection approach establishing protection over the expected post-convergence paths from the point of local repair, reducing the operational need to control the tie-breaks among various FRR options.

Authors

Stephane Litkowski
Ahmed Bashandy
Clarence Filsfils
Pierre Francois
Bruno Decraene
Daniel Voyer

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