A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Bidirectional Forwarding Detection Working Group of the IETF.
Title : BFD For MPLS LSPs
Author(s) : R. Aggarwal, et al.
Filename : draft-ietf-bfd-mpls-00.txt
Pages : 10
Date : 2004-7-12
One desirable application of Bi-directional Forwarding Detection
(BFD) is to detect a MPLS 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.
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