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Node Protection for SR-TE Paths
draft-hegde-spring-node-protection-for-sr-te-paths-02

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 "Replaced".
Expired & archived
Authors Shraddha Hegde , Chris Bowers , Stephane Litkowski
Last updated 2018-05-03 (Latest revision 2017-10-30)
RFC stream (None)
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Additional resources
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
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This Internet-Draft is no longer active.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:

Abstract

Segment routing supports the creation of explicit paths using adjacency-sids, node-sids, and binding-sids. It is important to provide fast reroute (FRR) mechanisms to respond to failures of links and nodes in the Segment-Routed Traffic-Engineered(SR-TE) path. A point of local repair (PLR) can provide FRR protection against the failure of a link in an SR-TE path by examining only the first (top) label in the SR label stack. In order to protect against the failure of a node, a PLR may need to examine the second label in the stack as well in order to determine SR-TE path beyond the failed node. This document specifies how a PLR can use the first and second label in the label stack describing an SR-TE path to provide protection against node failures.

Authors

Shraddha Hegde
Chris Bowers
Stephane Litkowski

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