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Seamless Bidirectional Forwarding Detection (S-BFD) Use Cases (RFC7882) Disclosure Number: IPCOM000246899D
Original Publication Date: 2016-Jul-01
Included in the Prior Art Database: 2016-Jul-13
Document File: 30 page(s) / 36K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

S. Aldrin: AUTHOR [+4]


Bidirectional Forwarding Detection (BFD), as defined in [RFC5880], is a lightweight protocol used to detect forwarding failures. Various protocols, applications, and clients rely on BFD for failure detection. Even though the protocol is lightweight and simple, there are certain use cases where faster setup of sessions and faster continuity checks of the data-forwarding paths are necessary. This document identifies these use cases and consequent requirements, such that enhancements and extensions result in a Seamless BFD (S-BFD) protocol.

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Internet Engineering Task Force (IETF)                         S. Aldrin Request for Comments: 7882                                  Google, Inc. Category: Informational                                     C. Pignataro ISSN: 2070-1721                                                    Cisco                                                                G. Mirsky                                                                 Ericsson                                                                 N. Kumar                                                                    Cisco                                                                July 2016

      Seamless Bidirectional Forwarding Detection (S-BFD) Use Cases


   This document describes various use cases for Seamless Bidirectional    Forwarding Detection (S-BFD) and provides requirements such that    protocol mechanisms allow for simplified detection of forwarding    failures.

   These use cases support S-BFD, which is a simplified mechanism for    using BFD with a large proportion of negotiation aspects eliminated,    accelerating the establishment of a BFD session.  The benefits of    S-BFD include quick provisioning, as well as improved control and    flexibility for network nodes initiating path monitoring.

Status of This Memo

   This document is not an Internet Standards Track specification; it is    published for informational purposes.

   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).  Not all documents    approved by the IESG are a candidate for any level of Internet    Standard; see 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

 Aldrin, et al.                Informational                     [Page 1]
 RFC 7882                     S-BFD Use Cases                   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    Provisions Relating to IETF Documents    (http://tr...