A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Routing Area Working Group WG of the IETF.
Title : Topology Independent Fast Reroute using Segment
Routing
Authors : Stephane Litkowski
Ahmed Bashandy
Clarence Filsfils
Bruno Decraene
Pierre Francois
Daniel Voyer
Francois Clad
Pablo Camarillo
Filename : draft-ietf-rtgwg-segment-routing-ti-lfa-03.txt
Pages : 25
Date : 2020-03-05
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.
The IETF datatracker status page for this draft is:
https://datatracker.ietf.org/doc/draft-ietf-rtgwg-segment-routing-ti-lfa/
There are also htmlized versions available at:
https://tools.ietf.org/html/draft-ietf-rtgwg-segment-routing-ti-lfa-03
https://datatracker.ietf.org/doc/html/draft-ietf-rtgwg-segment-routing-ti-lfa-03
A diff from the previous version is available at:
https://www.ietf.org/rfcdiff?url2=draft-ietf-rtgwg-segment-routing-ti-lfa-03
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