Technical Summary
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 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 RFC7752 by completely replacing that
document. It makes some small changes and clarifications to the
previous specification. This document also obsoletes RFC9029 by
incorporating the updates that it made to RFC7752.
Working Group Summary
Nothing specific to highlight.
Document Quality
The document is of high quality. Since this is a -bis document,
the original content had been through the RFC process and started
in good shape. The new text and clarifications introduced in each
revision were well-considered and cleanly worded.
BGP-LS is widely deployed. The (short) implementation report for this
draft: https://trac.ietf.org/trac/idr/wiki/draft-ietf-idr-RFC7752bis%20implementations%20
Personnel
Document Shepherd: Jeffrey Haas
Area Director: Alvaro Retana