Translation of Structure of Management Information Version 2 (SMIv2) MIB Modules to YANG Modules
RFC 6643

Internet Engineering Task Force (IETF)                  J. Schoenwaelder
Request for Comments: 6643                             Jacobs University
Category: Standards Track                                      July 2012
ISSN: 2070-1721

  Translation of Structure of Management Information Version 2 (SMIv2)
                      MIB Modules to YANG Modules

Abstract

   YANG is a data modeling language used to model configuration and
   state data manipulated by the Network Configuration Protocol
   (NETCONF), NETCONF remote procedure calls, and NETCONF notifications.
   The Structure of Management Information (SMIv2) defines fundamental
   data types, an object model, and the rules for writing and revising
   MIB modules for use with the Simple Network Management Protocol
   (SNMP).  This document defines a translation of SMIv2 MIB modules
   into YANG modules, enabling read-only (config false) access to data
   objects defined in SMIv2 MIB modules via NETCONF.

Status of This Memo

   This is an Internet Standards Track document.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Further information on
   Internet Standards is available in 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/rfc6643.

Schoenwaelder                Standards Track                    [Page 1]
RFC 6643              Translation of SMIv2 to YANG             July 2012

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   than English.

Schoenwaelder                Standards Track                    [Page 2]
RFC 6643              Translation of SMIv2 to YANG             July 2012

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
   2.  Mapping of Well-Known Types  . . . . . . . . . . . . . . . . .  4
   3.  Translation of SMIv2 Modules and SMIv2 IMPORT Clauses  . . . .  5
     3.1.  Example: IMPORTS of IF-MIB . . . . . . . . . . . . . . . .  6
   4.  Translation of the MODULE-IDENTITY Macro . . . . . . . . . . .  7
     4.1.  MODULE-IDENTITY Translation Rules  . . . . . . . . . . . .  7
     4.2.  Example: MODULE-IDENTITY of IF-MIB . . . . . . . . . . . .  8
   5.  Translation of the TEXTUAL-CONVENTION Macro  . . . . . . . . .  9
     5.1.  TEXTUAL-CONVENTION Translation Rules . . . . . . . . . . .  9
     5.2.  Example: OwnerString and InterfaceIndex of IF-MIB  . . . . 10
     5.3.  Example: IfDirection of the DIFFSERV-MIB . . . . . . . . . 11
   6.  Translation of OBJECT IDENTIFIER Assignments . . . . . . . . . 11
   7.  Translation of the OBJECT-TYPE Macro . . . . . . . . . . . . . 11
     7.1.  Scalar and Columnar Object Translation Rules . . . . . . . 11
     7.2.  Example: ifNumber and ifIndex of the IF-MIB  . . . . . . . 13
     7.3.  Non-Augmenting Conceptual Table Translation Rules  . . . . 13
     7.4.  Example: ifTable of the IF-MIB . . . . . . . . . . . . . . 15
     7.5.  Example: ifRcvAddressTable of the IF-MIB . . . . . . . . . 16
     7.6.  Example: alHostTable of the RMON2-MIB  . . . . . . . . . . 17
     7.7.  Augmenting Conceptual Tables Translation Rules . . . . . . 18
     7.8.  Example: ifXTable of the IF-MIB  . . . . . . . . . . . . . 20