A New Internet-Draft is available from the on-line Internet-Drafts directories.
This draft is a work item of the Path Computation Element Working Group of the IETF.
Title : draft-ietf-pce-brpc-08.txt
Author(s) : J. Vasseur, et al.
Filename : draft-ietf-pce-brpc-08.txt
Pages : 19
Date : 2008-04-02
The ability to compute shortest constrained Traffic Engineering Label
Switched Paths (TE LSPs) in Multiprotocol Label Switching (MPLS) and
Generalized MPLS (GMPLS) networks across multiple domains (where a
domain is a collection of network elements within a common sphere of
address management or path computational responsibility such as an
IGP area or an Autonomous Systems) has been identified as a key
requirement. This document specifies a procedure relying on the use
of multiple Path Computation Elements (PCEs) to compute such inter-
domain shortest constrained paths across a predetermined sequence of
domains, using a backward recursive path computation technique. This
technique preserves confidentiality across domains, which is
sometimes required when domains are managed by different Service
Providers.
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