A new Request for Comments is now available in online RFC libraries.
RFC 5441
Title: A Backward-Recursive PCE-Based Computation (BRPC)
Procedure to Compute Shortest Constrained Inter-Domain
Traffic Engineering Label Switched Paths
Author: JP. Vasseur, Ed.,
R. Zhang, N. Bitar,
JL. Le Roux
Status: Standards Track
Date: April 2009
Mailbox: [email protected],
[email protected],
[email protected],
[email protected]
Pages: 18
Characters: 39936
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-pce-brpc-09.txt
URL: http://www.rfc-editor.org/rfc/rfc5441.txt
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 has been
identified as a key requirement. In this context, 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. 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. [STANDARDS TRACK]
This document is a product of the Path Computation Element Working Group of the
IETF.
This is now a Proposed Standard Protocol.
STANDARDS TRACK: This document specifies an Internet standards track
protocol for the Internet community,and requests discussion and suggestions
for improvements. Please refer to the current edition of the Internet
Official Protocol Standards (STD 1) for the standardization state and
status of this protocol. Distribution of this memo is unlimited.
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