A new Request for Comments is now available in online RFC libraries.
RFC 9552
Title: Distribution of Link-State and Traffic
Engineering Information Using BGP
Author: K. Talaulikar, Ed.
Status: Standards Track
Stream: IETF
Date: December 2023
Mailbox: ketant.i...@gmail.com
Pages: 60
Obsoletes: RFC 7752, RFC 9029
I-D Tag: draft-ietf-idr-rfc7752bis-17.txt
URL: https://www.rfc-editor.org/info/rfc9552
DOI: 10.17487/RFC9552
In many environments, a component external to a network is called
upon to perform computations based on the network topology and the
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
BGP Network Layer Reachability Information (NLRI) encoding format.
The mechanism applies to physical and virtual (e.g., tunnel) 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 obsoletes RFC 7752 by completely replacing that
document. It makes some small changes and clarifications to the
previous specification. This document also obsoletes RFC 9029 by
incorporating the updates that it made to RFC 7752.
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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