Network Working Group G. Mansfield
Request for Comments: 1567 AIC Systems Laboratory
Category: Standards Track S. Kille
ISODE Consortium
January 1994
X.500 Directory Monitoring MIB
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.
Abstract
This document defines a portion of the Management Information Base
(MIB). It defines the MIB for monitoring Directory System Agents
(DSA), a component of the OSI Directory. This MIB will be used in
conjunction with the APPLICATION-MIB for monitoring DSAs.
Table of Contents
1. The SNMPv2 Network Management Framework ....................... 1
2. MIB Model for DSA Management ................................. 2
3. The DSA functions and operations .............................. 2
4. MIB design .................................................... 3
5. The Directory Monitoring MIB .................................. 3
6. Acknowledgements ..............................................17
7. References ....................................................17
Security Considerations ...........................................18
Authors' Addresses ................................................18
1. The SNMPv2 Network Management Framework
The major components of the SNMPv2 Network Management framework are
described in the documents listed below.
o RFC 1442 [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.
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o RFC 1445 [3] defines the administrative and other
architectural aspects of the management framework.
o RFC 1448 [4] 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.
2. MIB Model for DSA Management
A DSA-manager may wish to monitor several aspects of the operational
DSA. He/she may want to know the process related aspects-the
resource utilization of the operational DSA; the network service
related aspects e.g., inbound-associations, outbound-associations,
operational status, and finally the information specific to the DSA
application - its operations and performance.
The MIB defined in this document covers the portion which is specific
to the DSA-application. The network service related part of the MIB,
and the host-resources related part of the MIB, as well other parts
of interest to a Manager monitoring the DSA-application, are covered
in separate documents [6] [7].
3. The DSA functions and operations
The Directory System Agent [DSA], a component of the OSI-Directory
[5] [9], is an application process. It provides access to the
Directory Information Base [DIB] to Directory User Agents [DUA]
and/or other DSAs. Functionally , a User [DUA] and the Directory are
bound together for a period of time at an access point to the
Directory [DSA]. A DSA may use information stored in its local
database or interact with (chain the request to) other DSAs to
service requirements. Alternatively, a DSA may return a reference to
another DSA.
The local database of a DSA consists of the part of the DIT that is
mastered by the DSA, the part of the DIT for which it keeps slave
copies and cached information that is gathered during the operation
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of the DSA.
The specific operations carried out by the DSA are: Read, Compare,
AddEntry, ModifyEntry, ModifyRDN, RemoveEntry, List, Search. There is
also the special operation Abandon. In response to requests results
and/or errors are returned by the DSA.
4. MIB design
The basic principle has been to keep the MIB as simple as possible.
The Managed objects included in the MIB are divided into three tables
- dsaOpsTable, dsaEntryTable and dsaIntTable.
- The dsaOpsTable provides summary statistics on the accesses,
operations and errors.
- The dsaEntriesTable provides summary statistics on the entries
held by the DSA and on cache performance.
- The dsaIntTable provides some useful information on the
interaction of the monitored DSA with peer DSAs.
There are references to the Directory itself for static information
pertaining to the DSA. These references are in the form of "Directory
Distinguished Name" [8] of the corresponding object. It is intended
that DSA management applications will use these references to obtain
further related information on the objects of interest.
5. The Directory Monitoring MIB
DSA-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE,
NOTIFICATION-TYPE
FROM SNMPv2-SMI
DisplayString, TimeStamp,
TEXTUAL-CONVENTION
FROM SNMPv2-TC
mib-2
FROM RFC1213-MIB
applIndex, DistinguishedName
FROM APPLICATION-MIB;
dsaMIB MODULE-IDENTITY
LAST-UPDATED "9311250000Z"
ORGANIZATION "IETF Mail and Directory Management Working
Group"
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CONTACT-INFO
" Glenn Mansfield
Postal: AIC Systems Laboratory
6-6-3, Minami Yoshinari
Aoba-ku, Sendai, 989-32
JP
Tel: +81 22 279 3310
Fax: +81 22 279 3640
E-Mail: glenn@aic.co.jp"
DESCRIPTION
" The MIB module for monitoring Directory System Agents."
::= { mib-2 29 }
dsaOpsTable OBJECT-TYPE
SYNTAX SEQUENCE OF DsaOpsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
" The table holding information related to the
DSA operations."
::= {dsaMIB 1}
dsaOpsEntry OBJECT-TYPE
SYNTAX DsaOpsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
" Entry containing operations related statistics
for a DSA."
INDEX { applIndex }
::= {dsaOpsTable 1}
DsaOpsEntry ::= SEQUENCE {
-- Bindings
dsaAnonymousBinds
Counter32,
dsaUnauthBinds
Counter32,
dsaSimpleAuthBinds
Counter32,
dsaStrongAuthBinds
Counter32,
dsaBindSecurityErrors
Counter32,
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-- In-coming operations
dsaInOps
Counter32,
dsaReadOps
Counter32,
dsaCompareOps
Counter32,
dsaAddEntryOps
Counter32,
dsaRemoveEntryOps
Counter32,
dsaModifyEntryOps
Counter32,
dsaModifyRDNOps
Counter32,
dsaListOps
Counter32,
dsaSearchOps
Counter32,
dsaOneLevelSearchOps
Counter32,
dsaWholeTreeSearchOps
Counter32,
-- Out going operations
dsaReferrals
Counter32,
dsaChainings
Counter32,
-- Errors
dsaSecurityErrors
Counter32,
dsaErrors
Counter32
}
dsaAnonymousBinds OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of anonymous binds to this DSA from DUAs
since application start."
::= {dsaOpsEntry 1}
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dsaUnauthBinds OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of un-authenticated binds to this
DSA since application start."
::= {dsaOpsEntry 2}
dsaSimpleAuthBinds OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of binds to this DSA that were authenticated
using simple authentication procedures since
application start."
REFERENCE
" CCITT Blue Book Fascicle VIII.8 - Rec. X.511, 1988:
Section 8.1.2.1.1."
::= {dsaOpsEntry 3}
dsaStrongAuthBinds OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of binds to this DSA that were authenticated
using the strong authentication procedures since
application start. This includes the binds that were
authenticated using external authentication procedures."
REFERENCE
" CCITT Blue Book Fascicle VIII.8 - Rec. X.511, 1988:
Sections 8.1.2.1.2 & 8.1.2.1.3."
::= {dsaOpsEntry 4}
dsaBindSecurityErrors OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of bind operations that have been rejected
by this DSA due to inappropriateAuthentication or
invalidCredentials."
REFERENCE
" CCITT Blue Book Fascicle VIII.8 - Rec. X.511, 1988:
Section 12.7.2"
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::= {dsaOpsEntry 5}
dsaInOps OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of operations forwarded to this DSA
from DUAs or other DSAs since application
start up."
::= {dsaOpsEntry 6}
dsaReadOps OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of read operations serviced by
this DSA since application startup."
REFERENCE
" CCITT Blue Book Fascicle VIII.8 - Rec. X.511, 1988:
Section 9.1."
::= {dsaOpsEntry 7}
dsaCompareOps OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of compare operations serviced by
this DSA since application startup."
REFERENCE
" CCITT Blue Book Fascicle VIII.8 - Rec. X.511, 1988:
Section 9.2."
::= {dsaOpsEntry 8}
dsaAddEntryOps OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of addEntry operations serviced by
this DSA since application startup."
REFERENCE
" CCITT Blue Book Fascicle VIII.8 - Rec. X.511, 1988:
Section 11.1."
::= {dsaOpsEntry 9}
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dsaRemoveEntryOps OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of removeEntry operations serviced by
this DSA since application startup."
REFERENCE
" CCITT Blue Book Fascicle VIII.8 - Rec. X.511, 1988:
Section 11.2."
::= {dsaOpsEntry 10}
dsaModifyEntryOps OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of modifyEntry operations serviced by
this DSA since application startup."
REFERENCE
" CCITT Blue Book Fascicle VIII.8 - Rec. X.511, 1988:
Section 11.3."
::= {dsaOpsEntry 11}
dsaModifyRDNOps OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of modifyRDN operations serviced by
this DSA since application startup."
REFERENCE
" CCITT Blue Book Fascicle VIII.8 - Rec. X.511, 1988:
Section 11.4."
::= {dsaOpsEntry 12}
dsaListOps OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of list operations serviced by
this DSA since application startup."
REFERENCE
" CCITT Blue Book Fascicle VIII.8 - Rec. X.511, 1988:
Section 10.1."
::= {dsaOpsEntry 13}
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dsaSearchOps OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of search operations- baseObjectSearches,
oneLevelSearches and subTreeSearches, serviced
by this DSA since application startup."
REFERENCE
" CCITT Blue Book Fascicle VIII.8 - Rec. X.511, 1988:
Section 10.2."
::= {dsaOpsEntry 14}
dsaOneLevelSearchOps OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of oneLevelSearch operations serviced
by this DSA since application startup."
REFERENCE
" CCITT Blue Book Fascicle VIII.8 - Rec. X.511, 1988:
Section 10.2.2.2."
::= {dsaOpsEntry 15}
dsaWholeTreeSearchOps OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of wholeTreeSearch operations serviced
by this DSA since application startup."
REFERENCE
" CCITT Blue Book Fascicle VIII.8 - Rec. X.511, 1988:
Section 10.2.2.2."
::= {dsaOpsEntry 16}
dsaReferrals OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of referrals returned by this DSA in response
to requests for operations since application startup."
REFERENCE
" CCITT Blue Book Fascicle VIII.8 - Rec. X.511, 1988:
Section 12.6."
::= {dsaOpsEntry 17}
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dsaChainings OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of operations forwarded by this DSA
to other DSAs since application startup."
REFERENCE
" CCITT Blue Book Fascicle VIII.8 - Rec. X.518, 1988:
Section 14."
::= {dsaOpsEntry 18}
dsaSecurityErrors OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of operations forwarded to this DSA
which did not meet the security requirements. "
REFERENCE
" CCITT Blue Book Fascicle VIII.8 - Rec. X.511, 1988:
Section 12.7."
::= {dsaOpsEntry 19}
dsaErrors OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of operations that could not be serviced
due to errors other than security errors, and
referrals.
A partially serviced operation will not be counted
as an error.
The errors include NameErrors, UpdateErrors, Attribute
errors and ServiceErrors."
REFERENCE
" CCITT Blue Book Fascicle VIII.8 - Rec. X.511, 1988:
Sections 12.4, 12.5, 12.8 & 12.9."
::= {dsaOpsEntry 20}
-- Entry statistics/Cache performance
dsaEntriesTable OBJECT-TYPE
SYNTAX SEQUENCE OF DsaEntriesEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
" The table holding information related to the
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entry statistics and cache performance of the DSAs."
::= {dsaMIB 2}
dsaEntriesEntry OBJECT-TYPE
SYNTAX DsaEntriesEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
" Entry containing statistics pertaining to entries
held by a DSA."
INDEX { applIndex }
::= {dsaEntriesTable 1}
DsaEntriesEntry ::= SEQUENCE {
dsaMasterEntries
Gauge32,
dsaCopyEntries
Gauge32,
dsaCacheEntries
Gauge32,
dsaCacheHits
Counter32,
dsaSlaveHits
Counter32
}
dsaMasterEntries OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of entries mastered in the DSA."
::= {dsaEntriesEntry 1}
dsaCopyEntries OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of entries for which systematic (slave)
copies are maintained in the DSA."
::= {dsaEntriesEntry 2}
dsaCacheEntries OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
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" Number of entries cached (non-systematic copies) in
the DSA. This will include the entries that are
cached partially. The negative cache is not counted."
::= {dsaEntriesEntry 3}
dsaCacheHits OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of operations that were serviced from
the locally held cache since application
startup."
::= {dsaEntriesEntry 4}
dsaSlaveHits OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Number of operations that were serviced from
the locally held object replications [ shadow
entries] since application startup."
::= {dsaEntriesEntry 5}
-- The dsaIntTable contains statistical data on the peer DSAs
-- with which the monitored DSAs [attempt to] interact. This
-- table will provide a useful insight into the effect of
-- neighbours on the DSA performance.
-- The table keeps track of the last "N" DSAs with which the
-- monitored DSAs has interacted [attempted to interact],
-- where "N" is a locally-defined constant.
dsaIntTable OBJECT-TYPE
SYNTAX SEQUENCE OF DsaIntEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
" Each row of this table contains some details
related to the history of the interaction
of the monitored DSAs with their respective
peer DSAs."
::= { dsaMIB 3 }
dsaIntEntry OBJECT-TYPE
SYNTAX DsaIntEntry
MAX-ACCESS not-accessible
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STATUS current
DESCRIPTION
" Entry containing interaction details of a DSA
with a peer DSA."
INDEX { applIndex,dsaIntIndex }
::= { dsaIntTable 1 }
DsaIntEntry ::= SEQUENCE {
dsaIntIndex
INTEGER,
dsaName
DistinguishedName,
dsaTimeOfCreation
TimeStamp,
dsaTimeOfLastAttempt
TimeStamp,
dsaTimeOfLastSuccess
TimeStamp,
dsaFailuresSinceLastSuccess
Counter32,
dsaFailures
Counter32,
dsaSuccesses
Counter32
}
dsaIntIndex OBJECT-TYPE
SYNTAX INTEGER (1..2147483647)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
" Together with applIndex it forms the unique key to
identify the conceptual row which contains useful info
on the (attempted) interaction between the DSA (referred
to by applIndex) and a peer DSA."
::= {dsaIntEntry 1}
dsaName OBJECT-TYPE
SYNTAX DistinguishedName
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Distinguished Name of the peer DSA to which this
entry pertains."
::= {dsaIntEntry 2}
dsaTimeOfCreation OBJECT-TYPE
SYNTAX TimeStamp
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MAX-ACCESS read-only
STATUS current
DESCRIPTION
" The value of sysUpTime when this row was created.
If the entry was created before the network management
subsystem was initialized, this object will contain
a value of zero."
::= {dsaIntEntry 3}
dsaTimeOfLastAttempt OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" The value of sysUpTime when the last attempt was made
to contact this DSA. If the last attempt was made before
the network management subsystem was initialized, this
object will contain a value of zero."
::= {dsaIntEntry 4}
dsaTimeOfLastSuccess OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" The value of sysUpTime when the last attempt made to
contact this DSA was successful. If there have
been no successful attempts this entry will have a value
of zero. If the last successful attempt was made before
the network management subsystem was initialized, this
object will contain a value of zero."
::= {dsaIntEntry 5}
dsaFailuresSinceLastSuccess OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" The number of failures since the last time an
attempt to contact this DSA was successful. If
there has been no successful attempts, this counter
will contain the number of failures since this entry
was created."
::= {dsaIntEntry 6}
dsaFailures OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
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STATUS current
DESCRIPTION
" Cumulative failures since the creation of
this entry."
::= {dsaIntEntry 7}
dsaSuccesses OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" Cumulative successes since the creation of
this entry."
::= {dsaIntEntry 8}
-- Conformance information
dsaConformance OBJECT IDENTIFIER ::= { dsaMIB 4 }
dsaGroups OBJECT IDENTIFIER ::= { dsaConformance 1 }
dsaCompliances OBJECT IDENTIFIER ::= { dsaConformance 2 }
-- Compliance statements
dsaOpsCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for SNMPv2 entities
which implement the DSA-MIB for monitoring
DSA operations."
MODULE -- this module
MANDATORY-GROUPS { dsaOpsGroup }
::= { dsaCompliances 1 }
dsaEntryCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for SNMPv2 entities
which implement the DSA-MIB for monitoring
DSA operations, entry statistics and cache
performance."
MODULE -- this module
MANDATORY-GROUPS { dsaOpsGroup,dsaEntryGroup }
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::= { dsaCompliances 2 }
dsaIntCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
" The compliance statement for SNMPv2 entities
which implement the DSA-MIB for monitoring DSA
operations and the interaction of the DSA with
peer DSAs."
MODULE -- this module
MANDATORY-GROUPS { dsaOpsGroup, dsaIntGroup }
::= { dsaCompliances 3 }
-- Units of conformance
dsaOpsGroup OBJECT-GROUP
OBJECTS {
dsaAnonymousBinds, dsaUnauthBinds, dsaSimpleAuthBinds,
dsaStrongAuthBinds, dsaBindSecurityErrors,dsaInOps,
dsaReadOps, dsaCompareOps, dsaAddEntryOps,
dsaRemoveEntryOps, dsaModifyEntryOps, dsaModifyRDNOps,
dsaListOps, dsaSearchOps, dsaOneLevelSearchOps,
dsaWholeTreeSearchOps,dsaReferrals, dsaChainings,
dsaSecurityErrors, dsaErrors}
STATUS current
DESCRIPTION
" A collection of objects for monitoring the DSA
operations."
::= { dsaGroups 1 }
dsaEntryGroup OBJECT-GROUP
OBJECTS {dsaMasterEntries, dsaCopyEntries, dsaCacheEntries,
dsaCacheHits, dsaSlaveHits}
STATUS current
DESCRIPTION
" A collection of objects for monitoring the DSA
entry statistics and cache performance."
::= { dsaGroups 2 }
dsaIntGroup OBJECT-GROUP
OBJECTS {
dsaName, dsaTimeOfCreation, dsaTimeOfLastAttempt,
dsaTimeOfLastSuccess,dsaFailuresSinceLastSuccess,dsaFailures,
dsaSuccesses}
STATUS current
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DESCRIPTION
" A collection of objects for monitoring the DSA's
interaction with peer DSAs."
::= { dsaGroups 3 }
END
6. Acknowledgements
This draft is the product of discussions and deliberations carried
out in the following working groups:
ietf-madman-wg ietf-madman@innosoft.com
wide-isode-wg isode-wg@wide.ad.jp
wide-netman-wg netman-wg@wide.ad.jp
7. References
[1] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Structure
of Management Information for version 2 of the Simple Network
Management Protocol (SNMPv2)", RFC 1442, SNMP Research,Inc.,
Hughes LAN Systems, Dover Beach Consulting, Inc., Carnegie Mellon
University, April 1993.
[2] McCloghrie, K., and M. Rose, Editors, "Management Information
Base for Network Management of TCP/IP-based internets: MIB-II",
STD 17, RFC 1213, Hughes LAN Systems, Performance Systems
International, March 1991.
[3] Galvin, J., and K. McCloghrie, "Administrative Model for version
2 of the Simple Network Management Protocol (SNMPv2)", RFC 1445,
Trusted Information Systems, Hughes LAN Systems, April 1993.
[4] Case, J., McCloghrie, K., Rose, M., and S, Waldbusser, "Protocol
Operations for version 2 of the Simple Network Management
Protocol (SNMPv2)", RFC 1448, SNMP Research,Inc., Hughes LAN
Systems, Dover Beach Consulting, Inc., Carnegie Mellon
University, April 1993.
[5] CCITT Blue Book, "Data Communication Networks: Directory",
Recommendations X.500-X.521, December 1988.
[6] Kille, S., WG Chair, and N. Freed, Editor, "The Network Services
Monitoring MIB", RFC 1565, ISODE Consortium, Innosoft, January
1994.
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RFC 1567 X.500 Directory Monitoring MIB January 1994
[7] Grillo, P., and S. Waldbusser, "Host Resources MIB", RFC 1514,
Network Innovations, Intel Corporation, Carnegie Mellon
University, September 1993.
[8] Kille, S., "A String Representation of Distinguished Names (OSI-
DS 23 (v5))", RFC 1485, ISODE Consortium, July 1993.
[9] Kille, S., Huizer, E., Cerf, V., Hobby, R., and S. Kent, "A
Strategic Plan for Deploying an Internet X.500 Directory
Service", RFC 1430, ISODE Consortium, SURFnet bv, Corporation for
National Research Initiatives, University of California, Davis,
Bolt, Beranek and Newman, February 1993.
Security Considerations
Security issues are not discussed in this memo.
Authors' Addresses
Glenn Mansfield
AIC Systems Laboratories
6-6-3 Minami Yoshinari
Aoba-ku, Sendai 989-32
Japan
Phone: +81-22-279-3310
EMail: glenn@aic.co.jp
Steve E. Kille
ISODE Consortium
The Dome, The Square
Richmond TW9 1DT
UK
Phone: +44-81-332-9091
EMail: S.Kille@isode.com
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