Internet Architecture Board (IAB) D. McPherson, Ed. Request for Comments: 6220 O. Kolkman, Ed. Category: Informational J. Klensin, Ed. ISSN: 2070-1721 G. Huston, Ed. April 2011 Defining the Role and Function of IETF Protocol Parameter Registry Operators
AbstractMany Internet Engineering Task Force (IETF) protocols make use of commonly defined values that are passed in messages or packets. To ensure consistent interpretation of these values between independent implementations, there is a need to ensure that the values and associated semantic intent are uniquely defined. The IETF uses registry functions to record assigned protocol parameter values and their associated semantic intentions. For each IETF protocol parameter, it is current practice for the IETF to delegate the role of Protocol Parameter Registry Operator to a nominated entity. This document provides a description of, and the requirements for, these delegated functions. Status of This Memo This document is not an Internet Standards Track specification; it is published for informational purposes. This document is a product of the Internet Architecture Board (IAB) and represents information that the IAB has deemed valuable to provide for permanent record. Documents approved for publication by the IAB are not a candidate for any level of Internet Standard; see Section 2 of RFC 5741. Information about the current status of this document, any errata, and how to provide feedback on it may be obtained at http://www.rfc-editor.org/info/rfc6220.
Copyright Notice Copyright (c) 2011 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 (http://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. 1. Overview ........................................................2 2. Roles and Responsibilities Concerning IETF Protocol Parameter Registries ...................................3 2.1. Protocol Parameter Registry Operator Role ..................4 2.2. IAB Role ...................................................7 2.3. IESG Role ..................................................7 2.4. Role of the IETF Trust .....................................8 2.5. Role of the IAOC ...........................................8 3. Miscellaneous Considerations ....................................8 4. Security Considerations .........................................9 5. IANA Considerations .............................................9 6. Informative References ..........................................9 7. Acknowledgements ...............................................10 8. IAB Members ....................................................10
allocations, and avoiding any potential conflicts of interest that might arise from commercial or organizational relationships. For example, most ISO and ISO/IEC JTC1 standards that require registration activities specify a Registration Authority (RA) or Maintenance Agency (MA) that, in turn, control the actual registration decisions. The databases of what is registered for each standard may then be maintained by a secretariat or database function associated with the RA or MA or, less frequently, by the secretariat of the body that created and maintains the standard itself. This structural separation of roles exists within several places in the IETF framework (e.g., the RFC Editor function). The Internet Architecture Board (IAB), on behalf of the IETF, has the responsibility to define and manage the relationship with the Protocol Registry Operator role. This responsibility includes the selection and management of the Protocol Parameter Registry Operator, as well as management of the parameter registration process and the guidelines for parameter allocation. As with other SDOs, although it may delegate authority for some specific decisions, the IETF asserts authority and responsibility for the management of all of its protocol parameters and their registries, even while it generally remains isolated from the selection of particular values once a registration is approved. This document describes the function of these registries as they apply to individual protocol parameters defined by the IETF Internet Standards Process [RFC2026] to allow for an orderly implementation by the Internet Administrative Oversight Committee (IAOC), and others as needed, under guidance from the IAB. Below we provide a description of the requirements for these delegated functions, which the IETF traditionally refers to as the Internet Assigned Numbers Authority (IANA) function. RFC5620]). The protocol parameter registry function falls into this category of outsourced functions, and what follows here is the description of the roles and responsibilities with respect to the registration of IETF protocol parameters. Specifically, this document describes the operation and role of a delegated IETF Protocol Parameter Registry Operator, to be selected and administered by the IETF Administrative Support Activity (IASA) [RFC4071]. While there is generally a single Protocol Parameter
Registry Operator, additional Operators may be selected to implement specific registries, and that has been done occasionally. Having a single Operator facilitates coordination among registries, even those that are not obviously related, and also makes it easier to have consistency of formats and registry structure, which aids users of the registries and assists with quality control. Many protocols make use of identifiers consisting of constants and other well-known values. Even after a protocol has been defined and deployment has begun, new values may need to be assigned (e.g., for a new option type in DHCP, or a new encryption or authentication algorithm for IPsec). To ensure that such quantities have consistent values and interpretations in different implementations, their assignment must be administered by a central authority. For IETF protocols, that role is provided by a delegated Protocol Parameter Registry Operator. For any particular protocol parameter there is a single delegated Registry Operator.
assign and register only those protocol parameters that have already been delegated to the Operator, following past and current practice for such assignments, unless otherwise directed in terms of operating practice by the IESG. In the case of ambiguity, the Registry Operator is expected to identify the ambiguity to the IAB or IESG as appropriate and either suggest better text or ask the appropriate parties for clarification. * For each protocol parameter, the associated registry includes: + a reference to the RFC document that describes the parameter and the associated "IANA Considerations" concerning the parameter, and + for each registration of a protocol parameter value, the source of the registration and the date of the registration, if the date of registration is known, and + any other information specified as being included in the registration data in the RFC document that describes the parameter. + If in doubt or in case of a technical dispute, the Registry Operator will seek and follow technical guidance exclusively from the IESG. Where appropriate, the IESG will appoint an expert to advise the Registry Operator. * The Registry Operator will work with the IETF to develop any missing criteria and procedures over time, which the Registry Operator will adopt when so instructed by the IESG. * Unless special circumstances apply to subsets of the data and specific rules are established by IETF consensus, each protocol parameter registry operates as a public registry, and the contents of the registry are openly available to the public, on-line and free of charge. * The Registry Operator assigns protocol parameter values in accordance with the policy associated with the protocol parameter, such as "First Come First Served" or "Expert Review" [RFC5226]. o Mailing Lists * The Registry Operator maintains public mailing lists as specified in IANA Considerations [RFC5226]. Such lists are designated for the purpose of review of assignment proposals in conjunction with a designated expert review function. In addition, each Protocol
Parameter Registry Operator should maintain a mailing list that enables the registry staff of the Registry Operator to be contacted by email. o Liaison Activity * The Registry Operator will nominate a liaison point of contact. The Registry Operator, through this liaison, may be requested to provide advice to the IESG on IETF protocol parameters as well as the "IANA Considerations" section of each Internet-Draft that is being reviewed for publication as an RFC. Where appropriate the IESG will appoint an expert to advise the Registry Operator. o Reporting * The Registry Operator will submit periodic reports to the IAB concerning the operational performance of the registry function. As an example of the requirements for such reports, the reader is referred to a supplement [IAOC_SUPP] to the "Memorandum of Understanding Concerning the Technical Work of the Internet Assigned Numbers Authority" [RFC2860] that provides service level agreement (SLA) guidelines under which ICANN, the current protocol parameter registry, must operate. * At the request of the chair of the IETF, IAB, or IAOC, the Registry Operator will undertake periodic reports to IETF Plenary meetings concerning the status of the registry function. * The Registry Operator will publish an annual report describing the status of the function and a summary of performance indicators. o Intellectual Property Rights and the Registry Operator * All assigned values are to be published and made available free of any charges. * The assignment values may be redistributed without modification. * Any intellectual property rights of the IETF protocol parameter assignment information, including the IETF protocol parameter registry and its contents, are to be held by the IETF Trust [RFC4748].
RFC4844] include "IANA Considerations" sections when needed, and that "IANA Considerations" sections conform to the current published guidelines. Since technical assessment is not generally a responsibility of the Registry Operator, as part of providing the technical direction the IESG is responsible for identifying the technical experts that are required to, where appropriate, review registration requests or resolve open technical questions that relate to the registration of parameters.
At its discretion, the IESG will organize the liaison activities with the Registry Operator's liaison point of contact so as to facilitate clear communications and effective operation of the registry function. RFC4748] was formed to act as the administrative custodian of all copyrights and other intellectual property rights relating to the IETF Standards Process, a function that had previously been performed by the Internet Society (ISOC) and the Corporation for National Research Initiatives (CNRI). Any intellectual property rights of IETF protocol parameter assignment information, including the registry and its contents, and all registry publications, are to be held by the IETF Trust on behalf of the IETF. The IETF Trust may make such regulations as appropriate for the redistribution of assignment values and registry publications. RFC4844], for "IANA Considerations" verification. For the other RFC streams, the approval bodies are responsible for verifying that the documents include "IANA Considerations" sections when needed, and that "IANA Considerations" sections conform to the
current published guidelines. In the case that IANA considerations in non-IETF document streams lead to a dispute, the IAB makes the final decision. This document talks about "Registry Operator" (singular), and while there are stability and economy-of-scale advantages for one single Operator, this document does not exclude having different Operators for different protocol registries when justified by the circumstances. [RFC2026] Bradner, S., "The Internet Standards Process -- Revision 3", BCP 9, RFC 2026, October 1996. [RFC2860] Carpenter, B., Baker, F., and M. Roberts, "Memorandum of Understanding Concerning the Technical Work of the Internet Assigned Numbers Authority", RFC 2860, June 2000. [RFC4071] Austein, R., Ed., and B. Wijnen, Ed., "Structure of the IETF Administrative Support Activity (IASA)", BCP 101, RFC 4071, April 2005. [RFC4748] Bradner, S., Ed., "RFC 3978 Update to Recognize the IETF Trust", RFC 4748, October 2006. [RFC4844] Daigle, L., Ed., and Internet Architecture Board, "The RFC Series and RFC Editor", RFC 4844, July 2007. [RFC5226] Narten, T. and H. Alvestrand, "Guidelines for Writing an IANA Considerations Section in RFCs", BCP 26, RFC 5226, May 2008.
[RFC5620] Kolkman, O., Ed., and IAB, "RFC Editor Model (Version 1)", RFC 5620, August 2009. [IAOC_SUPP] ICANN/IANA-IETF MoU Supplemental Agreement, <http://iaoc.ietf.org/documents/ IETF-ICANN_Supplemental_Agreement.pdf>. RFC5226], and has been modified to include explicit reference to Intellectual Property Rights and the roles of the IAB and IESG in relation to the IETF Protocol Parameter Registry function. The Internet Architecture Board acknowledges the assistance provided by reviewers of drafts of this document, including Scott Bradner, Brian Carpenter, Leslie Daigle, Adrian Farrel, Alfred Hoenes, Paul Hoffman, Alexey Melnikov, Thomas Narten, and Ray Pelletier.