A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Multiprotocol Label Switching Working Group of the
IETF.
Title : Fault Tolerance for LDP and CR-LDP
Author(s) : A. Farrel, P. Brittain, P. Matthews, E. Gray
Filename : draft-ietf-mpls-ldp-ft-01.txt
Pages : 30
Date : 01-Mar-01
MPLS systems will be used in core networks where system downtime
must be kept to an absolute minimum. Many MPLS LSRs may, therefore,
exploit Fault Tolerant (FT) hardware or software to provide
high availability of the core networks.
The details of how FT is achieved for the various components of an FT
LSR, including LDP, CR-LDP, the switching hardware and TCP, are
implementation specific. This document identifies issues in the
CR-LDP specification [2] and the LDP specification [4] that make it
difficult to implement an FT LSR using the current LDP and CR-LDP
protocols, and proposes enhancements to the LDP specification to ease
such FT LSR implementations.
The extensions described here are equally applicable to CR-LDP.
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