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RFC 9997
Title: YANG-CBOR: Allocating SID Ranges for
Private Enterprise Number (PEN) Holders
Author: C. Bormann
Status: Proposed Standard
Stream: IETF
Date: July 2026
Mailbox: [email protected]
Pages: 6
I-D Tag: draft-ietf-core-yang-sid-pen-06
URL: https://www.rfc-editor.org/info/rfc9997
DOI: 10.17487/RFC9997
YANG-CBOR (RFC 9254, "Encoding of Data Modeled with YANG in the Concise Binary
Object Representation (CBOR)") defines YANG Schema Item iDentifiers (YANG
SIDs), globally unique 63-bit unsigned integers used to identify YANG items.
RFC 9595 ("YANG Schema Item iDentifier (YANG SID)") defines ways to allocate
these SIDs using IANA registries.
The present specification employs these SID allocation mechanisms to allocate
ranges of 100 000 SIDs (representation size 64 bits) to each holder of an IANA
Private Enterprise Number (PEN) of a value below 1 000 000. Holders of PENs of
values smaller than 100 000 are also allocated ranges of 10 000 SIDs
(representation size 32 bits).
This document is a product of the Constrained RESTful Environments Working
Group of the IETF.
STANDARDS TRACK: This document specifies an Internet Standards Track
protocol for the Internet community, and requests discussion and
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