RFC 1660 (rfc1660) - Page 2 of 10

Definitions of Managed Objects for Parallel-printer-like Hardware Devices using SMIv2

RFC 1660               Parallel-printer-like MIB               July 1994


      o    RFC 1445 [3] which defines the administrative and other
           architectural aspects of the framework.

      o    RFC 1448 [4] which defines the protocol used for network
           access to managed objects.

   The Framework permits new objects to be defined for the purpose of
   experimentation and evaluation.

2.1.  Object Definitions

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  Objects in the MIB are
   defined using the subset of Abstract Syntax Notation One (ASN.1)
   defined in the SMI.  In particular, each object object type is named
   by an OBJECT IDENTIFIER, an administratively assigned name.  The
   object type together with an object instance serves to uniquely
   identify a specific instantiation of the object.  For human
   convenience, we often use a textual string, termed the descriptor, to
   refer to the object type.

3.  Overview

   The Parallel-printer-like Hardware Device MIB applies to interface
   ports that would most probably support the Character MIB.  The most
   common example is Centronics-like printer port.

   The Parallel-printer-like Hardware Device MIB is mandatory for all
   systems that have such a hardware port supporting services managed
   through some other MIB.

   The Parallel-printer-like Hardware Port MIB includes Centronics-like
   and Data-Products-like parallel physical links with a similar set of
   control signals.

   The MIB contains objects that relate to physical layer connections.

   The MIB comprises one base object and three tables, detailed in the
   following sections.  The tables contain objects for ports and input
   and output control signals.

3.1.  Relationship to Interface MIB

   The Parallel-printer-like MIB is one of many MIBs designed for
   layered use as described in the Interface MIB [5].  In most
   implementations where it is present, it will be in the lowest
   interface sublayer, that is, the Parallel-printer-like MIB represents
   the physical layer, providing service to higher layers such as the



Stewart