RFC 2115 (rfc2115) - Page 2 of 32
Management Information Base for Frame Relay DTEs Using SMIv2
Alternative Format: Original Text Document
RFC 2115 Frame Relay DTE MIB September 1997
3. The SNMPv2 Network Management Framework
The major components of the SNMPv2 Network Management framework are
described in the documents listed below.
o RFC 1902 [1] defines the Structure of Management
Information (SMI), the mechanisms used for describing and
naming objects for the purpose of management.
o STD 17, RFC 1213 [2] defines MIB-II, the core set of
managed objects (MO) for the Internet suite of protocols.
o RFC 1905 [3] defines the protocol used for network access
to managed objects.
The framework is adaptable/extensible by defining new MIBs to suit
the requirements of specific applications/protocols/situations.
Managed objects are accessed via a virtual information store, the
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 type is named by an OBJECT IDENTIFIER, which is 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, often a textual string, termed
the descriptor, is used to refer to the object type.
4. Overview
4.1. Frame Relay Operational Model
For the purposes of understanding this document, Frame Relay is
viewed as a multi-access media, not as a group of point- to-point
connections. This model proposes that Frame Relay is a single
interface to the network (physical connection) with many destinations
or neighbors (virtual connections). This view enables a network
manager the ability to group all virtual connections with their
corresponding physical connection thereby allowing simpler
diagnostics and trouble shooting.
With the extension of the interfaces MIB, it is possible to configure
frame relay DLCs as individual interfaces and create ifTable entries
for each. This is not recommended and is not directly supported by
this MIB. Additionally, in the presence of demand circuits creation
of individual ifEntries for each is not possible.
Brown & Baker Standards Track