A new Request for Comments is now available in online RFC libraries.
RFC 5884
Title: Bidirectional Forwarding Detection (BFD) for
MPLS Label Switched Paths (LSPs)
Author: R. Aggarwal, K. Kompella,
T. Nadeau, G. Swallow
Status: Standards Track
Stream: IETF
Date: June 2010
Mailbox: rahul@juniper.net,
kireeti@juniper.net,
tom.nadeau@bt.com, swallow@cisco.com
Pages: 12
Characters: 27734
Updates: RFC1122
I-D Tag: draft-ietf-bfd-mpls-07.txt
URL: http://www.rfc-editor.org/rfc/rfc5884.txt
One desirable application of Bidirectional Forwarding Detection
(BFD) is to detect a Multiprotocol Label Switching (MPLS) Label
Switched Path (LSP) data plane failure. LSP Ping is an existing
mechanism for detecting MPLS data plane failures and for verifying
the MPLS LSP data plane against the control plane. BFD can be used
for the former, but not for the latter. However, the control plane
processing required for BFD Control packets is relatively smaller
than the processing required for LSP Ping messages. A combination of
LSP Ping and BFD can be used to provide faster data plane failure
detection and/or make it possible to provide such detection on a
greater number of LSPs. This document describes the applicability of
BFD in relation to LSP Ping for this application. It also describes
procedures for using BFD in this environment. [STANDARDS TRACK]
This document is a product of the Bidirectional Forwarding Detection Working Group of the IETF.
This is now a Proposed Standard Protocol.
STANDARDS TRACK: This document specifies an Internet standards track
protocol for the Internet community,and requests discussion and suggestions
for improvements. Please refer to the current edition of the Internet
Official Protocol Standards (STD 1) for the standardization state and
status of this protocol. Distribution of this memo is unlimited.
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