Preferred Path Loop-Free Alternate (pLFA)
draft-bryant-rtgwg-plfa-00
| Document | Type | Expired Internet-Draft (individual) | |
|---|---|---|---|
| Last updated | 2020-01-03 (latest revision 2019-07-02) | ||
| Stream | (None) | ||
| Intended RFC status | (None) | ||
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https://www.ietf.org/archive/id/draft-bryant-rtgwg-plfa-00.txt
Abstract
Fast re-route (FRR) is a technique that allows productive forwarding to continue in a network after a failure has occurred, but before the network has has time to re-converge. This is achieved by forwarding a packet on an alternate path that will not result in the packet looping. Preferred Path Routing (PPR) provides a method of injecting explicit paths into the routing protocol. The use of PPR to support FRR has a number of advantages. This document describes the advantages of using PPR to provide a loop-free alternate FRR path, and provides a framework for its use in this application.
Authors
Stewart Bryant
(stewart.bryant@gmail.com)
Uma Chunduri
(uchundur@futurewei.com)
Toerless Eckert
(tte+ietf@cs.fau.de)
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)