A new Request for Comments is now available in online RFC libraries.
RFC 7752
Title: North-Bound Distribution of Link-State and
Traffic Engineering (TE) Information Using BGP
Author: H. Gredler, Ed.,
J. Medved, S. Previdi,
A. Farrel, S. Ray
Status: Standards Track
Stream: IETF
Date: March 2016
Mailbox: hannes@gredler.at,
jmedved@cisco.com,
sprevidi@cisco.com,
adrian@olddog.co.uk,
raysaikat@gmail.com
Pages: 48
Characters: 113130
Updates/Obsoletes/SeeAlso: None
I-D Tag: draft-ietf-idr-ls-distribution-13.txt
URL: https://www.rfc-editor.org/info/rfc7752
DOI: http://dx.doi.org/10.17487/RFC7752
In a number of environments, a component external to a network is
called upon to perform computations based on the network topology and
current state of the connections within the network, including
Traffic Engineering (TE) information. This is information typically
distributed by IGP routing protocols within the network.
This document describes a mechanism by which link-state and TE
information can be collected from networks and shared with external
components using the BGP routing protocol. This is achieved using a
new BGP Network Layer Reachability Information (NLRI) encoding
format. The mechanism is applicable to physical and virtual IGP
links. The mechanism described is subject to policy control.
Applications of this technique include Application-Layer Traffic
Optimization (ALTO) servers and Path Computation Elements (PCEs).
This document is a product of the Inter-Domain Routing Working Group of the IETF.
This is now a Proposed Standard.
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 Official
Internet Protocol Standards (https://www.rfc-editor.org/standards) for the
standardization state and status of this protocol. Distribution of this
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