📄 rfc2668.txt
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Network Working Group A. Smith
Request for Comments: 2668 Extreme Networks, Inc.
Obsoletes: 2239 J. Flick
Category: Standards Track Hewlett-Packard Company
K. de Graaf
Argon Networks
D. Romascanu
Lucent Technologies
D. McMaster
Cisco Systems, Inc.
K. McCloghrie
Cisco Systems, Inc.
S. Roberts
Farallon Computing, Inc.
August 1999
Definitions of Managed Objects for
IEEE 802.3 Medium Attachment Units (MAUs)
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (1999). All Rights Reserved.
Abstract
This memo defines a portion of the Management Information Base (MIB)
for use with network management protocols in the Internet community.
This memo obsoletes RFC 2239, "Definitions of Managed Objects for
IEEE 802.3 Medium Attachment Units (MAUs) using SMIv2". This memo
extends that specification by including management information useful
for the management of 1000 Mb/s MAUs.
Ethernet technology, as defined by the 802.3 Working Group of the
IEEE, continues to evolve, with scalable increases in speed, new
types of cabling and interfaces, and new features. This evolution
may require changes in the managed objects in order to reflect this
new functionality. This document, as with other documents issued by
this working group, reflects a certain stage in the evolution of
Ethernet technology. In the future, this document might be revised,
Smith, et al. Standards Track [Page 1]
RFC 2668 802.3 MAU MIB August 1999
or new documents might be issued by the Ethernet Interfaces and Hub
MIB Working Group, in order to reflect the evolution of Ethernet
technology.
Table of Contents
1. Introduction ............................................... 2
2. The SNMP Management Framework .............................. 3
3. Overview ................................................... 4
3.1. Relationship to RFC 2239 ................................. 4
3.2. Relationship to RFC 1515 ................................. 4
3.3. MAU Management ........................................... 4
3.4. Relationship to Other MIBs ............................... 5
3.4.1. Relationship to the Interfaces MIB ..................... 5
3.4.2. Relationship to the 802.3 Repeater MIB ................. 5
3.5. Management of Internal MAUs .............................. 5
4. Definitions ................................................ 6
5. Intellectual Property ...................................... 49
6. Acknowledgements ........................................... 49
7. References ................................................. 50
8. Security Considerations .................................... 52
9. Authors' Addresses ......................................... 53
10. Appendix: Change Log ....................................... 55
11. Full Copyright Statement .................................. 57
1. Introduction
This memo defines a portion of the Management Information Base (MIB)
for use with network management protocols in the Internet community.
In particular, it defines objects for managing IEEE 802.3 Medium
Attachment Units (MAUs).
This memo also includes a MIB module. This MIB module extends the
list of managed objects specified in the earlier version of this MIB:
RFC 2239 [21].
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [20].
Smith, et al. Standards Track [Page 2]
RFC 2668 802.3 MAU MIB August 1999
2. The SNMP Management Framework
The SNMP Management Framework presently consists of five major
components:
o An overall architecture, described in RFC 2571 [1].
o Mechanisms for describing and naming objects and events for the
purpose of management. The first version of this Structure of
Management Information (SMI) is called SMIv1 and described in
STD 16, RFC 1155 [2], STD 16, RFC 1212 [3] and RFC 1215 [4]. The
second version, called SMIv2, is described in STD 58, RFC 2578
[5], STD 58, RFC 2579 [6] and STD 58, RFC 2580 [7].
o Message protocols for transferring management information. The
first version of the SNMP message protocol is called SNMPv1 and
described in STD 15, RFC 1157 [8]. A second version of the SNMP
message protocol, which is not an Internet standards track
protocol, is called SNMPv2c and described in RFC 1901 [9] and RFC
1906 [10]. The third version of the message protocol is called
SNMPv3 and described in RFC 1906 [10], RFC 2572 [11] and RFC 2574
[12].
o Protocol operations for accessing management information. The
first set of protocol operations and associated PDU formats is
described in STD 15, RFC 1157 [8]. A second set of protocol
operations and associated PDU formats is described in RFC 1905
[13].
o A set of fundamental applications described in RFC 2573 [14] and
the view-based access control mechanism described in RFC 2575
[15].
Managed objects are accessed via a virtual information store, termed
the Management Information Base or MIB. Objects in the MIB are
defined using the mechanisms defined in the SMI.
This memo specifies a MIB module that is compliant to the SMIv2. A
MIB conforming to the SMIv1 can be produced through the appropriate
translations. The resulting translated MIB must be semantically
equivalent, except where objects or events are omitted because no
translation is possible (use of Counter64). Some machine readable
information in SMIv2 will be converted into textual descriptions in
SMIv1 during the translation process. However, this loss of machine
readable information is not considered to change the semantics of the
MIB.
Smith, et al. Standards Track [Page 3]
RFC 2668 802.3 MAU MIB August 1999
3. Overview
3.1. Relationship to RFC 2239
This MIB is intended to be a superset of that defined by RFC 2239
[21], which will go to historic status. This MIB includes all of the
objects contained in that MIB, plus several new ones which provide
additional capabilities. Implementors are encouraged to support all
applicable conformance groups in order to make the best use of the
new functionality provided by this MIB. The new objects provide
management support for:
o management of 1000 Mb/s devices
o management of PAUSE negotiation
o management of remote fault status
3.2. Relationship to RFC 1515
RFC 2239 was a replacement for RFC 1515 [22], which is now historic.
RFC 2239 defined a superset of RFC 1515 which contained all of the
objects defined in RFC 1515, plus several new ones which provided
additional capabilities. The new objects in RFC 2239 provided
management support for:
o management of 100 Mb/s devices
o auto-negotiation on interface MAUs
o jack management
3.3. MAU Management
Instances of these object types represent attributes of an IEEE 802.3
MAU. Several types of MAUs are defined in the IEEE 802.3 CSMA/CD
standard [16]. These MAUs may be connected to IEEE 802.3 repeaters
or to 802.3 (Ethernet-like) interfaces. For convenience this document
refers to these devices as "repeater MAUs" and "interface MAUs."
The definitions presented here are based on Section 30.5, "Layer
Management for 10, 100 & 1000 Mb/s Medium Attachment Units (MAUs)",
and Annex 30A, "GDMO Specifications for 802.3 managed object classes"
of IEEE Std. 802.3, 1998 edition [16]. That specification includes
definitions for 10Mb/s, 100Mb/s and 1000Mb/s devices. This
specification is intended to serve the same purpose: to provide for
management of all types of Ethernet/802.3 MAUs.
Smith, et al. Standards Track [Page 4]
RFC 2668 802.3 MAU MIB August 1999
3.4. Relationship to Other MIBs
It is assumed that an agent implementing this MIB will also implement
(at least) the 'system' group defined in MIB-II [18]. The following
sections identify other MIBs that such an agent should implement.
3.4.1. Relationship to the Interfaces MIB.
The sections of this document that define interface MAU-related
objects specify an extension to the Interfaces MIB [19]. An agent
implementing these interface-MAU related objects MUST also implement
the relevant groups of Interface MIB. The value of the object
ifMauIfIndex is the same as the value of 'ifIndex' used to
instantiate the interface to which the given MAU is connected.
It is expected that an agent implementing the interface-MAU related
objects in this MIB will also implement the Ethernet-like Interfaces
MIB, [23].
(Note that repeater ports are not represented as interfaces in the
Interface MIB.)
3.4.2. Relationship to the 802.3 Repeater MIB
The section of this document that defines repeater MAU-related
objects specifies an extension to the 802.3 Repeater MIB defined in
[17]. An agent implementing these repeater-MAU related objects MUST
also implement the 802.3 Repeater MIB.
The values of 'rpMauGroupIndex' and 'rpMauPortIndex' used to
instantiate a repeater MAU variable SHALL be the same as the values
of 'rptrPortGroupIndex' and 'rptrPortIndex' used to instantiate the
port to which the given MAU is connected.
3.5. Management of Internal MAUs
In some situations, a MAU can be "internal" -- i.e., its
functionality is implemented entirely within a device. For example,
a managed repeater may contain an internal repeater-MAU and/or an
internal interface-MAU through which management communications
originating on one of the repeater's external ports pass in order to
reach the management agent associated with the repeater. Such
internal MAUs may or may not be managed. If they are managed,
objects describing their attributes should appear in the appropriate
MIB subtree: dot3RpMauBasicGroup for internal repeater-MAUs and
dot3IfMauBasicGroup for internal interface-MAUs.
Smith, et al. Standards Track [Page 5]
RFC 2668 802.3 MAU MIB August 1999
4. Definitions
MAU-MIB DEFINITIONS ::= BEGIN
IMPORTS
Counter32, Integer32,
OBJECT-TYPE, MODULE-IDENTITY, NOTIFICATION-TYPE,
OBJECT-IDENTITY, mib-2
FROM SNMPv2-SMI
TruthValue, TEXTUAL-CONVENTION
FROM SNMPv2-TC
OBJECT-GROUP, MODULE-COMPLIANCE, NOTIFICATION-GROUP
FROM SNMPv2-CONF;
mauMod MODULE-IDENTITY
LAST-UPDATED "9908240400Z" -- August 24, 1999
ORGANIZATION "IETF Ethernet Interfaces and Hub MIB
Working Group"
CONTACT-INFO
"WG E-mail: hubmib@hprnd.rose.hp.com
To subscribe: hubmib-request@hprnd.rose.hp.com
Chair: Dan Romascanu
Postal: Lucent Technologies
Atidim Technology Park, Bldg. 3
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