Topology Independent Fast Reroute using Segment Routing
draft-ietf-rtgwg-segment-routing-ti-lfa-01

The information below is for an old version of the document.
Document Type
This is an older version of an Internet-Draft whose latest revision state is "Active".
Expired & archived
Authors Stephane Litkowski , Ahmed Bashandy , Clarence Filsfils , Bruno Decraene , Pierre Francois , Daniel Voyer , Francois Clad , Pablo Camarillo
Last updated 2019-09-06 (Latest revision 2019-03-05)
Replaces draft-bashandy-rtgwg-segment-routing-ti-lfa
RFC stream Internet Engineering Task Force (IETF)
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Reviews
RTGDIR Last Call review (of -13) by Ben Niven-Jenkins Has nits
GENART Last Call review (of -13) by Roni Even Ready w/nits
SECDIR Last Call review (of -13) by Wes Hardaker Ready
OPSDIR Early review (of -12) by Gyan Mishra Ready
INTDIR Early review (of -11) by Antoine Fressancourt Ready w/issues
OPSDIR Early review (of -11) by Gyan Mishra Serious Issues
SECDIR Early review (of -10) by Wes Hardaker Not ready
RTGDIR Early review (of -09) by Andy Smith Has nits
RTGDIR Early review (of draft-bashandy-rtgwg-segment-routing-ti-lfa -00) by Stewart Bryant Has issues
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IESG IESG state Expired
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:

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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 IGP network. 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, dramatically reducing the operational need to control the tie-breaks among various FRR options.

Authors

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

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