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Fault Tolerance for LDP and CR-LDP

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Paul Brittain , Adrian Farrel
Last updated 2000-02-16
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


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.


Paul Brittain
Adrian Farrel

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