Basic Specification for IP Fast Reroute: Loop-Free Alternates

By Alia Atlas, A. Zinin. Request for Comments, 2008

380 citations recorded by the source corpus.

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.

Subfields: Computer Networks and Communications, Electrical and Electronic Engineering

View Paper: https://www.semanticscholar.org/paper/20d852d790c73795cae7c8a10a5dc6da5b142a80

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In Computer Networks and Communications

1. A. Afanasyev
2. Beichuan Zhang
3. Cheng Yi
4. Lan Wang
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In Electrical and Electronic Engineering

1. A. Afanasyev
2. Beichuan Zhang
3. Cheng Yi
4. Lan Wang
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Citations in the corpus

• Adaptive forwarding in named data networking (2012, methodology): “In this experiment, we compare NDN-BestRoute against Loop-Free Alternate (LFA) [15], the only commercially available IPFRR solution.”