RFC 2020 (rfc2020) - Page 2 of 31
IEEE 802
Alternative Format: Original Text Document
RFC 2020 IEEE 802.12 Interface MIB October 1996
2. Object Definitions
Management information is viewed as a collection of managed objects,
residing in a virtual information store, termed the Management
Information Base (MIB). Collections of related objects are defined
in MIB modules. MIB modules are written using a subset of Abstract
Syntax Notation One (ASN.1) [1] termed the Structure of Management
Information (SMI) [2]. In particular, each 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
Instances of these object types represent attributes of an interface
to an IEEE 802.12 communications medium. At present, IEEE 802.12
media are identified by one value of the ifType object in the
Internet-standard MIB:
ieee80212(55)
For this interface, the value of the ifSpecific variable in the MIB-
II [5] has the OBJECT IDENTIFIER value:
dot12MIB OBJECT IDENTIFIER ::= { transmission 45 }
The values for the ifType object are defined by the IANAifType
textual convention. The Internet Assigned Numbers Authority (IANA)
is responsible for the assignment of all Internet numbers, including
new ifType values. Therefore, IANA is responsible for maintaining
the definition of this textual convention. The current definition of
the IANAifType textual convention is available from IANA's World Wide
Web server at:
http://www.iana.org/iana/
The definitions presented here are based on the IEEE Standard
802.12-1995, [6] Clause 13 "Layer management functions and services",
and Annex C "GDMO Specifications for Demand Priority Managed
Objects". Implementors of these MIB objects should note that the
IEEE document explicitly describes (in the form of Pascal pseudocode)
when, where, and how various MAC attributes are measured. The IEEE
document also describes the effects of MAC actions that may be
invoked by manipulating instances of the MIB objects defined here.
Flick Standards Track