A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : ReSerVation Protocol with Traffic Engineering
extensions.Extension for Label Switched Path estoration
Author(s) : S. Kini, M. Kodialam, T. Lakshman, C. Villamizar
Filename : draft-kini-rsvp-lsp-restoration-00.txt
Pages : 8
Date : 08-Nov-00
Traffic engineering using MPLS involves the setting up of label
switched paths (LSP) possibly with explicit routing and with bandwidth
guarantees. The reliability of these LSPs can be increased by providing
a backup LSP onto which traffic can be switched upon failure of an
element in the path of the active LSP. Backup LSPs can be routed in a
way that bandwidth can be shared between backup links of more than one
active path while still guaranteeing recoverability for a set of
failures. This sharing greatly increases the network efficiency thereby
increasing the number of LSPs that can be carried while maintaining
guarantees. Algorithms which can route such recoverable LSPs while
using only aggregate network usage information are being developed.
Keeping these algorithms as the primary motivation this document
describes a mechanism to signal shared backup LSPs using RSVP.
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