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RFC 5152
Title: A Per-Domain Path Computation Method
for Establishing Inter-Domain Traffic Engineering (TE)
Label Switched Paths (LSPs)
Author: JP. Vasseur, Ed.,
A. Ayyangar, Ed.,
R. Zhang
Status: Standards Track
Date: February 2008
Mailbox: jpv@cisco.com,
arthi@juniper.net,
raymond.zhang@bt.com
Pages: 21
Characters: 50563
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-ccamp-inter-domain-pd-path-comp-06.txt
URL: http://www.rfc-editor.org/rfc/rfc5152.txt
This document specifies a per-domain path computation technique for
establishing inter-domain Traffic Engineering (TE) Multiprotocol
Label Switching (MPLS) and Generalized MPLS (GMPLS) Label Switched
Paths (LSPs). In this document, a domain refers to a collection of
network elements within a common sphere of address management or path
computational responsibility such as Interior Gateway Protocol (IGP)
areas and Autonomous Systems.
Per-domain computation applies where the full path of an inter-domain
TE LSP cannot be or is not determined at the ingress node of the TE
LSP, and is not signaled across domain boundaries. This is most
likely to arise owing to TE visibility limitations. The signaling
message indicates the destination and nodes up to the next domain
boundary. It may also indicate further domain boundaries or domain
identifiers. The path through each domain, possibly including the
choice of exit point from the domain, must be determined within the
domain. [STANDARDS TRACK]
This document is a product of the Common Control and Measurement Plane 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
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