RFC 7752

North-Bound Distribution of Link-State and Traffic Engineering (TE) Information Using BGP, March 2016

Canonical URL:
https://www.rfc-editor.org/rfc/rfc7752.txt
File formats:
Plain TextPDF
Status:
PROPOSED STANDARD
Authors:
H. Gredler, Ed.
J. Medved
S. Previdi
A. Farrel
S. Ray
Stream:
IETF
Source:
idr (rtg)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC7752

Discuss this RFC: Send questions or comments to idr@ietf.org

Other actions: Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

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).


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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