Topology Independent Fast Reroute using Segment Routing
draft-ietf-rtgwg-segment-routing-ti-lfa-07
| Document | Type | Expired Internet-Draft (rtgwg WG) | |
|---|---|---|---|
| Authors | Stephane Litkowski , Ahmed Bashandy , Clarence Filsfils , Pierre Francois , Bruno Decraene , Daniel Voyer | ||
| Last updated | 2021-12-31 (Latest revision 2021-06-29) | ||
| Replaces | draft-bashandy-rtgwg-segment-routing-ti-lfa | ||
| Stream | Internet Engineering Task Force (IETF) | ||
| Formats |
Expired & archived
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| 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 |
https://www.ietf.org/archive/id/draft-ietf-rtgwg-segment-routing-ti-lfa-07.txt
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
Pierre Francois
Bruno Decraene
Daniel Voyer
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)