RFC 9408 · PROPOSED STANDARD · 2023

A YANG Network Data Model for Service Attachment Points

Overview

RFC 9408, “A YANG Network Data Model for Service Attachment Points”, is a Proposed Standard document published in June 2023 by M. Boucadair, O. Gonzalez de Dios, S. Barguil, Q. Wu, V. Lopez. The canonical text is published by the RFC Editor.

Abstract

This document defines a YANG data model for representing an abstract view of the provider network topology that contains the points from which its services can be attached (e.g., basic connectivity, VPN, network slices). Also, the model can be used to retrieve the points where the services are actually being delivered to customers (including peer networks).

This document augments the 'ietf-network' data model defined in RFC 8345 by adding the concept of Service Attachment Points (SAPs). The SAPs are the network reference points to which network services, such as Layer 3 Virtual Private Network (L3VPN) or Layer 2 Virtual Private Network (L2VPN), can be attached. One or multiple services can be bound to the same SAP. Both User-to-Network Interface (UNI) and Network-to-Network Interface (NNI) are supported in the SAP data model.

Abstract as published in the RFC, via rfc-editor.org.

What “Proposed Standard” means

An entry-level standards-track specification: stable, peer-reviewed and a solid basis for implementation, though it may still evolve before becoming an Internet Standard.

Read this RFC

The canonical text of RFC 9408 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.

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