RFC 1660 (rfc1660) - Page 2 of 10
Definitions of Managed Objects for Parallel-printer-like Hardware Devices using SMIv2
Alternative Format: Original Text Document
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