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Operational Management of Loop-Free Alternates (RFC7916) Disclosure Number: IPCOM000246881D
Original Publication Date: 2016-Jul-01
Included in the Prior Art Database: 2016-Jul-12
Document File: 62 page(s) / 62K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

S. Litkowski: AUTHOR [+6]


Following the first deployments of Loop-Free Alternates (LFAs), this document provides feedback to the community about the management of LFAs.

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Internet Engineering Task Force (IETF)                 S. Litkowski, Ed. Request for Comments: 7916                                   B. Decraene Category: Standards Track                                         Orange ISSN: 2070-1721                                              C. Filsfils                                                                  K. Raza                                                            Cisco Systems                                                             M. Horneffer                                                         Deutsche Telekom                                                                P. Sarkar                                                   Individual Contributor                                                                July 2016

              Operational Management of Loop-Free Alternates


   Loop-Free Alternates (LFAs), as defined in RFC 5286, constitute an IP    Fast Reroute (IP FRR) mechanism enabling traffic protection for IP    traffic (and, by extension, MPLS LDP traffic).  Following early    deployment experiences, this document provides operational feedback    on LFAs, highlights some limitations, and proposes a set of    refinements to address those limitations.  It also proposes required    management specifications.

   This proposal is also applicable to remote-LFA solutions.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force    (IETF).  It represents the consensus of the IETF community.  It has    received public review and has been approved for publication by the    Internet Engineering Steering Group (IESG).  Further information on    Internet Standards is available in Section 2 of RFC 7841.

   Information about the current status of this document, any errata,    and how to provide feedback on it may be obtained at

Litkowski, et al.            Standards Track                    [Page 1]
 RFC 7916                    LFA Manageability                  July 2016

 Copyright Notice

   Copyright (c) 2016 IETF Trust and the persons identified as the    document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal   ...