Seamless Bidirectional Forwarding Detection (S-BFD) Use Cases (RFC7882)
Original Publication Date: 2016-Jul-01
Included in the Prior Art Database: 2016-Jul-13
Internet Society Requests For Comment (RFCs)
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.
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 http://www.rfc-editor.org/info/rfc7882.
Aldrin, et al. Informational [Page 1]
RFC 7882 S-BFD Use Cases July 2016
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