NETCONF P. Andersson Internet-Draft Ionio Systems Intended status: Standards Track M. T. Valaphil Expires: 8 January 2027 Equinix 7 July 2026 Error List and Error Identities Registries for YANG-driven protocols draft-pamtv-netconf-error-registries-01 Abstract This document defines IANA registries for the YANG Protocol Error List and YANG Protocol Error Identities. Status of This Memo This Internet-Draft is submitted in full conformance with the provisions of BCP 78 and BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF). Note that other groups may also distribute working documents as Internet-Drafts. The list of current Internet- Drafts is at https://datatracker.ietf.org/drafts/current/. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." This Internet-Draft will expire on 8 January 2027. Copyright Notice Copyright (c) 2026 IETF Trust and the persons identified as the document authors. All rights reserved. This document is subject to BCP 78 and the IETF Trust's Legal Provisions Relating to IETF Documents (https://trustee.ietf.org/ license-info) in effect on the date of publication of this document. Please review these documents carefully, as they describe your rights and restrictions with respect to this document. Code Components extracted from this document must include Revised BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Revised BSD License. Andersson & Valaphil Expires 8 January 2027 [Page 1] Internet-Draft YANG Procotol Error Registries July 2026 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 2. Conventions and Definitions . . . . . . . . . . . . . . . . . 2 3. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 2 3.1. YANG Protocol Error List Registry . . . . . . . . . . . . 2 3.2. YANG Protocol Error Identities Registry . . . . . . . . . 4 4. Normative References . . . . . . . . . . . . . . . . . . . . 4 Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 5 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 5 1. Introduction In order to have a canonical source for all errors and error identities for YANG-driven procotols such as NETCONF [RFC6241] and RESTCONF [RFC8040], two IANA registries are defined: YANG Protocol Error List and YANG Protocol Error Identities. These registries can be extended and updated as needed. It is an advantage for protocol evolution to have canonical sources to extend, instead of a set of documents that need to be compiled and referenced. 2. Conventions and Definitions The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all capitals, as shown here. 3. IANA Considerations 3.1. YANG Protocol Error List Registry This document defines a registry for the YANG Protocol Error List defined in Appendix A of [RFC6241]. The name of the registry is "YANG Protocol Error List". The review policy for this registry is "IETF Review" [RFC5226]. The registry shall record the following for each entry: * error-tag, TBD * error-type, TBD * error-severity, TBD Andersson & Valaphil Expires 8 January 2027 [Page 2] Internet-Draft YANG Procotol Error Registries July 2026 * error-info, auxilary information described as data nodes (XML tags). * Description * The reference for the document registering the value. The initial contents of the registry is defined in [RFC6241] and inlined below: error-tag: in-use error-type: protocol, application error-severity: error error-info: none Description: The request requires a resource that already is in use. error-tag: invalid-value error-type: protocol, application error-severity: error error-info: none Description: The request specifies an unacceptable value for one or more parameters. error-tag: too-big error-type: transport, rpc, protocol, application error-severity: error error-info: none Description: The request or response (that would be generated) is too large for the implementation to handle. error-tag: missing-attribute error-type: rpc, protocol, application error-severity: error error-info: : name of the missing attribute : name of the element that is supposed to contain the missing attribute Description: An expected attribute is missing. error-tag: bad-attribute error-type: rpc, protocol, application error-severity: error error-info: : name of the attribute w/ bad value : name of the element that contains the attribute with the bad value Description: An attribute value is not correct; e.g., wrong type, out of range, pattern mismatch. Andersson & Valaphil Expires 8 January 2027 [Page 3] Internet-Draft YANG Procotol Error Registries July 2026 3.2. YANG Protocol Error Identities Registry This document defines a registry for YANG Protocol Error Identities. The name of the registry is "YANG Protocol Error Identities". The review policy for this registry is "IETF Review" [RFC5226]. The registry shall record the following for each entry: * Identity name. * Base identity, if applicable. * Additional information. * The reference for the document registering the value. The initial contents of the registry is defined in [RFC8639] and [RFC8641] and inlined below: dscp-unavailable encoding-unsupported filter-unsupported insufficient-resources replay-unsupported filter-unsupported insufficient-resources no-such-subscription no-such-subscription datastore-not-subscribable unchanging-selection period-unsupported update-too-big synchronization-size 4. Normative References [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997, . [RFC5226] Narten, T. and H. Alvestrand, "Guidelines for Writing an IANA Considerations Section in RFCs", RFC 5226, DOI 10.17487/RFC5226, May 2008, . Andersson & Valaphil Expires 8 January 2027 [Page 4] Internet-Draft YANG Procotol Error Registries July 2026 [RFC6241] Enns, R., Ed., Bjorklund, M., Ed., Schoenwaelder, J., Ed., and A. Bierman, Ed., "Network Configuration Protocol (NETCONF)", RFC 6241, DOI 10.17487/RFC6241, June 2011, . [RFC8040] Bierman, A., Bjorklund, M., and K. Watsen, "RESTCONF Protocol", RFC 8040, DOI 10.17487/RFC8040, January 2017, . [RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174, May 2017, . [RFC8639] Voit, E., Clemm, A., Gonzalez Prieto, A., Nilsen-Nygaard, E., and A. Tripathy, "Subscription to YANG Notifications", RFC 8639, DOI 10.17487/RFC8639, September 2019, . [RFC8641] Clemm, A. and E. Voit, "Subscription to YANG Notifications for Datastore Updates", RFC 8641, DOI 10.17487/RFC8641, September 2019, . Acknowledgments TODO acknowledge. Authors' Addresses Per Andersson Ionio Systems Email: per.ietf@ionio.se Mithun Thai Valaphil Equinix Email: mithun.ietf@gmail.com Andersson & Valaphil Expires 8 January 2027 [Page 5]