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UpdatedPROPOSED STANDARDIETF stream

RFC 5286: Basic Specification for IP Fast Reroute: Loop-Free Alternates

Still current, but amended. Parts of this document are changed or extended by RFC 8518. Read both.

In plain English — editorial summary, not part of the RFC

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]

Document record

Document ID
RFC5286
Published
September 2008
Authors
A. Atlas; A. Zinin
Status
PROPOSED STANDARD
Stream
IETF
Area
rtg
Pages
31
Also known as
—
Updated by:
RFC 8518

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The document record above — title, authors, date, status, stream, area, relationships, DOI and errata — is imported verbatim from the public RFC Editor index. The “in plain English” section is editorial: written by The metasystema editorial team, not part of the RFC. Where the two differ, the RFC text governs.

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canonical URL: /rfc/5286-basic-specification-for-ip-fast-reroute-loop-free-alternates