YANG Types for DNS Classes and Resource Record Types
draft-ietf-dnsop-iana-class-type-yang-00
DNSOP Working Group L. Lhotka
Internet-Draft P. Spacek
Intended status: Standards Track CZ.NIC
Expires: 19 June 2020 17 December 2019
YANG Types for DNS Classes and Resource Record Types
draft-ietf-dnsop-iana-class-type-yang-00
Abstract
This document introduces the YANG module "iana-dns-class-rr-type"
that contains derived types reflecting two IANA registries: DNS
CLASSes and Resource Record (RR) TYPEs. These YANG types are
intended as a minimum basis for future data modeling work.
Status of This Memo
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This Internet-Draft will expire on 19 June 2020.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. YANG Design Considerations . . . . . . . . . . . . . . . . . 3
4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 5
4.1. URI Registrations . . . . . . . . . . . . . . . . . . . . 6
4.2. YANG Module Registrations . . . . . . . . . . . . . . . . 6
5. Security Considerations . . . . . . . . . . . . . . . . . . . 7
6. Normative References . . . . . . . . . . . . . . . . . . . . 7
7. Informative References . . . . . . . . . . . . . . . . . . . 7
Appendix A. XSLT Stylesheet . . . . . . . . . . . . . . . . . . 8
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 13
1. Introduction
YANG [RFC7950] has become a de facto standard as a language for
modeling configuration and state data, as well as specifying
management operations and asynchronous notifications. It is
reasonable to expect that the approach based on utilizing such data
models along with standard management protocols such as NETCONF and
RESTCONF can be effectively used in DNS operations, too. In fact,
several efforts are currently underway that attempt to use NETCONF or
RESTCONF for configuring and managing
* authoritative servers
* resolvers
* zone data.
While it is possible to use the management protocols mentioned above
with ad hoc or proprietary data models, their real potential can be
realized only if there is a (completely or partly) unified data model
supported by multiple DNS software implementations. Operators can
then, for instance, run several different DNS server implementations
in parallel, and use a common configuration and management interface
and data for all of them. Also, it becomes considerably easier to
migrate to another implementation.
Based on the previous experience from the IETF Routing Area, it is to
be expected that the development of unified data models for DNS will
be a lengthy and complicated process that will require active
cooperation and compromises from the vendors and developers of major
DNS server platforms. Nevertheless, it is likely that any DNS-
related data modeling effort will need to use various DNS parameters
and enumerations that are specified in several IANA registries. For
use with YANG, these parameters and enumerations have to be
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translated into corresponding YANG types or other structures. Such
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