Basic Specification for IP Fast Reroute: Loop-Free Alternates

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Publisher: IETF
Doc Type: Standard
Pages: 31
Abstract: This document describes the use of loop-free alternates to provide local protection for unicast traffic in pure IP and MPLS/LDP networks in the event of a single failure, whether link, node, or shared risk link group (SRLG). The goal of this technology is to reduce the packet loss that happens while routers converge after a topology change due to a failure. Rapid failure repair is achieved through use of precalculated backup next-hops that are loop-free and safe to use until the distributed network convergence process completes. This simple approach does not require any support from other routers. The extent to which this goal can be met by this specification is dependent on the topology of the network. [STANDARDS-TRACK]
Publication Date: 2008-09-01
Status Note: Proposed Standard
DOI: 10.17487/RFC5286
Link: https://doi.org/10.17487/RFC5286
Author(s): Alia Atlas
Alex D. Zinin
Keyword(s): FRR, LFA, Recovery, Routing

Latest version of IETF RFC 5286

Document Versions — IETF RFC 5286

▶ IETF RFC 5286 (2008-09-01)

THIS DOC [ACTIVE] [LATEST VERSION]

Normative Reference(s)

IETF RFC 2119 [Active*]
IETF RFC 2328 [Active*]
IETF RFC 2740 [Superseded*]
IETF RFC 5036 [Active*]

Bibliographic Reference(s)

Francois, P., "Loop-free convergence using oFIB" , Work in Progress, February 2008. EXTERNAL
Zinin, A., "Analysis and Minimization of Microloops in Link-state Routing Protocols", Work in Progress, October 2005. EXTERNAL
Shand, M. and S. Bryant, "IP Fast Reroute Framework" , Work in Progress, February 2008. EXTERNAL
Mirtorabi, S. and A. Roy, "Multi-topology routing in OSPFv3 (MT-OSPFv3)", Work in Progress, July 2007. EXTERNAL
IETF RFC 1195 [Active*]
IETF RFC 2966 [Superseded*]
IETF RFC 3137 [Superseded*]
IETF RFC 3509 [Active*]
IETF RFC 4203 [Active*]
IETF RFC 4205 [Superseded*]
IETF RFC 4915 [Active*]
IETF RFC 5029 [Active*]
IETF RFC 5120 [Active*]
IETF RFC 5340 [Active*]

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IETF RFC 5286, Basic Specification for IP Fast Reroute: Loop-Free Alternates. Available at https://doi.org/10.17487/RFC5286

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<span class="citation"><cite>IETF RFC 5286</cite>, Basic Specification for IP Fast Reroute: Loop-Free Alternates. Available at <a href="https://doi.org/10.17487/RFC5286" target="_blank" rel="noopener">https://doi.org/10.17487/RFC5286</a></span>

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IETF RFC 5286, Basic Specification for IP Fast Reroute: Loop-Free Alternates
doi: 10.17487/RFC5286
url: https://doi.org/10.17487/RFC5286

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<cite id="bib-rfc5286">IETF RFC 5286</cite>, Basic Specification for IP Fast Reroute: Loop-Free Alternates
<span class="doi">10.17487/RFC5286</span>
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Referenced By

IETF RFC 6391 [Active*]
IETF RFC 7325 [Active*]
IETF RFC 7439 [Active*]