Bidirectional Forwarding Detection (BFD) in Segment Routing Networks Using MPLS Dataplane
draft-mirsky-spring-bfd-10

Document Type Replaced Internet-Draft (spring WG)
Last updated 2020-09-22 (latest revision 2020-04-26)
Replaced by draft-ietf-spring-bfd
Stream IETF
Intended RFC status (None)
Formats
Expired & archived
pdf htmlized (tools) htmlized bibtex
Stream WG state Adopted by a WG
Document shepherd No shepherd assigned
IESG IESG state Replaced by draft-ietf-spring-bfd
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at
https://www.ietf.org/archive/id/draft-mirsky-spring-bfd-10.txt

Abstract

Segment Routing (SR) architecture leverages the paradigm of source routing. It can be realized in the Multiprotocol Label Switching (MPLS) network without any change to the data plane. A segment is encoded as an MPLS label, and an ordered list of segments is encoded as a stack of labels. Bidirectional Forwarding Detection (BFD) is expected to monitor any existing path between systems. This document defines how to use Label Switched Path Ping to bootstrap a BFD session, control an SR Policy in the reverse direction of the SR-MPLS tunnel, and applicability of BFD Demand mode in the SR-MPLS domain. Also, the document describes the use of BFD Echo with BFD Control packet payload.

Authors

Greg Mirsky (gregimirsky@gmail.com)
Jeff Tantsura (jefftant.ietf@gmail.com)
Ilya Varlashkin (ilya@nobulus.com)
Mach Chen (mach.chen@huawei.com)
Jiang Wenying (jiangwenying@chinamobile.com)

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)