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RFC 2819

 
 
 

Remote Network Monitoring Management Information Base

Part 4 of 4, p. 82 to 98
Prev RFC Part

 


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 captureBufferControlIndex OBJECT-TYPE
     SYNTAX     Integer32 (1..65535)
     MAX-ACCESS read-only
     STATUS     current
     DESCRIPTION
         "The index of the bufferControlEntry with which
         this packet is associated."
     ::= { captureBufferEntry 1 }

 captureBufferIndex OBJECT-TYPE
     SYNTAX     Integer32 (1..2147483647)
     MAX-ACCESS read-only
     STATUS     current
     DESCRIPTION
         "An index that uniquely identifies an entry
         in the captureBuffer table associated with a
         particular bufferControlEntry.  This index will
         start at 1 and increase by one for each new packet
         added with the same captureBufferControlIndex.

         Should this value reach 2147483647, the next packet
         added with the same captureBufferControlIndex shall
         cause this value to wrap around to 1."
     ::= { captureBufferEntry 2 }

 captureBufferPacketID OBJECT-TYPE
     SYNTAX     Integer32
     MAX-ACCESS read-only
     STATUS     current
     DESCRIPTION
         "An index that describes the order of packets
         that are received on a particular interface.
         The packetID of a packet captured on an
         interface is defined to be greater than the
         packetID's of all packets captured previously on
         the same interface.  As the captureBufferPacketID
         object has a maximum positive value of 2^31 - 1,
         any captureBufferPacketID object shall have the
         value of the associated packet's packetID mod 2^31."
     ::= { captureBufferEntry 3 }

 captureBufferPacketData OBJECT-TYPE
     SYNTAX     OCTET STRING
     MAX-ACCESS read-only
     STATUS     current
     DESCRIPTION
         "The data inside the packet, starting at the beginning
         of the packet plus any offset specified in the

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         associated bufferControlDownloadOffset, including any
         link level headers.  The length of the data in this object
         is the minimum of the length of the captured packet minus
         the offset, the length of the associated
         bufferControlCaptureSliceSize minus the offset, and the
         associated bufferControlDownloadSliceSize.  If this minimum
         is less than zero, this object shall have a length of zero."
     ::= { captureBufferEntry 4 }

 captureBufferPacketLength OBJECT-TYPE
     SYNTAX     Integer32
     UNITS      "Octets"
     MAX-ACCESS read-only
     STATUS     current
     DESCRIPTION
         "The actual length (off the wire) of the packet stored
         in this entry, including FCS octets."
     ::= { captureBufferEntry 5 }

 captureBufferPacketTime OBJECT-TYPE
     SYNTAX     Integer32
     UNITS      "Milliseconds"
     MAX-ACCESS read-only
     STATUS     current
     DESCRIPTION
         "The number of milliseconds that had passed since
         this capture buffer was first turned on when this
         packet was captured."
     ::= { captureBufferEntry 6 }

 captureBufferPacketStatus OBJECT-TYPE
     SYNTAX     Integer32
     MAX-ACCESS read-only
     STATUS     current
     DESCRIPTION
         "A value which indicates the error status of this packet.

         The value of this object is defined in the same way as
         filterPktStatus.  The value is a sum.  This sum
         initially takes the value zero.  Then, for each
         error, E, that has been discovered in this packet,
         2 raised to a value representing E is added to the sum.

         The errors defined for a packet captured off of an
         Ethernet interface are as follows:

             bit #    Error
                 0    Packet is longer than 1518 octets

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                 1    Packet is shorter than 64 octets
                 2    Packet experienced a CRC or Alignment error
                 3    First packet in this capture buffer after
                      it was detected that some packets were
                      not processed correctly.
                 4    Packet's order in buffer is only approximate
                      (May only be set for packets sent from
                      the probe)

         For example, an Ethernet fragment would have a
         value of 6 (2^1 + 2^2).

         As this MIB is expanded to new media types, this object
         will have other media-specific errors defined."
     ::= { captureBufferEntry 7 }

 -- The Event Group

 -- Implementation of the Event group is optional.
 -- Consult the MODULE-COMPLIANCE macro for the authoritative
 -- conformance information for this MIB.
 --
 -- The Event group controls the generation and notification
 -- of events from this device.  Each entry in the eventTable
 -- describes the parameters of the event that can be triggered.
 -- Each event entry is fired by an associated condition located
 -- elsewhere in the MIB.  An event entry may also be associated
 -- with a function elsewhere in the MIB that will be executed
 -- when the event is generated.  For example, a channel may
 -- be turned on or off by the firing of an event.
 --
 -- Each eventEntry may optionally specify that a log entry
 -- be created on its behalf whenever the event occurs.
 -- Each entry may also specify that notification should
 -- occur by way of SNMP trap messages.  In this case, the
 -- community for the trap message is given in the associated
 -- eventCommunity object.  The enterprise and specific trap
 -- fields of the trap are determined by the condition that
 -- triggered the event.  Two traps are defined: risingAlarm and
 -- fallingAlarm.  If the eventTable is triggered by a condition
 -- specified elsewhere, the enterprise and specific trap fields
 -- must be specified for traps generated for that condition.

 eventTable OBJECT-TYPE
     SYNTAX     SEQUENCE OF EventEntry
     MAX-ACCESS not-accessible
     STATUS     current
     DESCRIPTION

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         "A list of events to be generated."
     ::= { event 1 }

 eventEntry OBJECT-TYPE
     SYNTAX     EventEntry
     MAX-ACCESS not-accessible
     STATUS     current
     DESCRIPTION
         "A set of parameters that describe an event to be generated
         when certain conditions are met.  As an example, an instance
         of the eventLastTimeSent object might be named
         eventLastTimeSent.6"
     INDEX { eventIndex }
     ::= { eventTable 1 }

 EventEntry ::= SEQUENCE {
     eventIndex          Integer32,
     eventDescription    DisplayString,
     eventType           INTEGER,
     eventCommunity      OCTET STRING,
     eventLastTimeSent   TimeTicks,
     eventOwner          OwnerString,
     eventStatus         EntryStatus
 }

 eventIndex OBJECT-TYPE
     SYNTAX     Integer32 (1..65535)
     MAX-ACCESS read-only
     STATUS     current
     DESCRIPTION
         "An index that uniquely identifies an entry in the
         event table.  Each such entry defines one event that
         is to be generated when the appropriate conditions
         occur."
     ::= { eventEntry 1 }

 eventDescription OBJECT-TYPE
     SYNTAX     DisplayString (SIZE (0..127))
     MAX-ACCESS read-create
     STATUS     current
     DESCRIPTION
         "A comment describing this event entry."
     ::= { eventEntry 2 }

 eventType OBJECT-TYPE
     SYNTAX     INTEGER {
                  none(1),
                  log(2),

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                  snmptrap(3),    -- send an SNMP trap
                  logandtrap(4)
                }
     MAX-ACCESS read-create
     STATUS     current
     DESCRIPTION
         "The type of notification that the probe will make
         about this event.  In the case of log, an entry is
         made in the log table for each event.  In the case of
         snmp-trap, an SNMP trap is sent to one or more
         management stations."
     ::= { eventEntry 3 }

 eventCommunity OBJECT-TYPE
     SYNTAX     OCTET STRING (SIZE (0..127))
     MAX-ACCESS read-create
     STATUS     current
     DESCRIPTION
         "If an SNMP trap is to be sent, it will be sent to
         the SNMP community specified by this octet string."
     ::= { eventEntry 4 }

 eventLastTimeSent OBJECT-TYPE
     SYNTAX     TimeTicks
     MAX-ACCESS read-only
     STATUS     current
     DESCRIPTION
         "The value of sysUpTime at the time this event
         entry last generated an event.  If this entry has
         not generated any events, this value will be
         zero."
     ::= { eventEntry 5 }

 eventOwner OBJECT-TYPE
     SYNTAX     OwnerString
     MAX-ACCESS read-create
     STATUS     current
     DESCRIPTION
         "The entity that configured this entry and is therefore
         using the resources assigned to it.

         If this object contains a string starting with 'monitor'
         and has associated entries in the log table, all connected
         management stations should retrieve those log entries,
         as they may have significance to all management stations
         connected to this device"
     ::= { eventEntry 6 }

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 eventStatus OBJECT-TYPE
     SYNTAX     EntryStatus
     MAX-ACCESS read-create
     STATUS     current
     DESCRIPTION
         "The status of this event entry.

         If this object is not equal to valid(1), all associated
         log entries shall be deleted by the agent."
     ::= { eventEntry 7 }

 --
 logTable OBJECT-TYPE
     SYNTAX     SEQUENCE OF LogEntry
     MAX-ACCESS not-accessible
     STATUS     current
     DESCRIPTION
         "A list of events that have been logged."
     ::= { event 2 }

 logEntry OBJECT-TYPE
     SYNTAX     LogEntry
     MAX-ACCESS not-accessible
     STATUS     current
     DESCRIPTION
         "A set of data describing an event that has been
         logged.  For example, an instance of the logDescription
         object might be named logDescription.6.47"
     INDEX { logEventIndex, logIndex }
     ::= { logTable 1 }

 LogEntry ::= SEQUENCE {
     logEventIndex           Integer32,
     logIndex                Integer32,
     logTime                 TimeTicks,
     logDescription          DisplayString
 }

 logEventIndex OBJECT-TYPE
     SYNTAX     Integer32 (1..65535)
     MAX-ACCESS read-only
     STATUS     current
     DESCRIPTION
         "The event entry that generated this log
         entry.  The log identified by a particular
         value of this index is associated with the same
         eventEntry as identified by the same value
         of eventIndex."

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     ::= { logEntry 1 }

 logIndex OBJECT-TYPE
     SYNTAX     Integer32 (1..2147483647)
     MAX-ACCESS read-only
     STATUS     current
     DESCRIPTION
         "An index that uniquely identifies an entry
         in the log table amongst those generated by the
         same eventEntries.  These indexes are
         assigned beginning with 1 and increase by one
         with each new log entry.  The association
         between values of logIndex and logEntries
         is fixed for the lifetime of each logEntry.
         The agent may choose to delete the oldest
         instances of logEntry as required because of
         lack of memory.  It is an implementation-specific
         matter as to when this deletion may occur."
     ::= { logEntry 2 }

 logTime OBJECT-TYPE
     SYNTAX     TimeTicks
     MAX-ACCESS read-only
     STATUS     current
     DESCRIPTION
         "The value of sysUpTime when this log entry was created."
     ::= { logEntry 3 }

 logDescription OBJECT-TYPE
     SYNTAX     DisplayString (SIZE (0..255))
     MAX-ACCESS read-only
     STATUS     current
     DESCRIPTION
         "An implementation dependent description of the
         event that activated this log entry."
     ::= { logEntry 4 }

 --  Remote Network Monitoring Traps

 rmonEventsV2 OBJECT-IDENTITY
     STATUS      current
     DESCRIPTION "Definition point for RMON notifications."
     ::= { rmon 0 }

 risingAlarm NOTIFICATION-TYPE
     OBJECTS  { alarmIndex, alarmVariable, alarmSampleType,
                alarmValue, alarmRisingThreshold }
     STATUS   current

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     DESCRIPTION
         "The SNMP trap that is generated when an alarm
         entry crosses its rising threshold and generates
         an event that is configured for sending SNMP
         traps."
     ::= { rmonEventsV2 1 }

 fallingAlarm NOTIFICATION-TYPE
     OBJECTS { alarmIndex, alarmVariable, alarmSampleType,
               alarmValue, alarmFallingThreshold }
     STATUS    current
     DESCRIPTION
         "The SNMP trap that is generated when an alarm
         entry crosses its falling threshold and generates
         an event that is configured for sending SNMP
         traps."
     ::= { rmonEventsV2 2 }

 -- Conformance information

 rmonCompliances OBJECT IDENTIFIER ::= { rmonConformance 9 }
 rmonGroups      OBJECT IDENTIFIER ::= { rmonConformance 10 }

 -- Compliance Statements
 rmonCompliance MODULE-COMPLIANCE
     STATUS current
     DESCRIPTION
         "The requirements for conformance to the RMON MIB. At least
         one of the groups in this module must be implemented to
         conform to the RMON MIB. Implementations of this MIB
         must also implement the system group of MIB-II [16] and the
         IF-MIB [17]."
     MODULE -- this module

       GROUP rmonEtherStatsGroup
           DESCRIPTION
               "The RMON Ethernet Statistics Group is optional."

       GROUP rmonHistoryControlGroup
           DESCRIPTION
               "The RMON History Control Group is optional."

       GROUP rmonEthernetHistoryGroup
           DESCRIPTION
               "The RMON Ethernet History Group is optional."

       GROUP rmonAlarmGroup
           DESCRIPTION

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               "The RMON Alarm Group is optional."

       GROUP rmonHostGroup
           DESCRIPTION
               "The RMON Host Group is mandatory when the
               rmonHostTopNGroup is implemented."

       GROUP rmonHostTopNGroup
           DESCRIPTION
               "The RMON Host Top N Group is optional."

       GROUP rmonMatrixGroup
           DESCRIPTION
               "The RMON Matrix Group is optional."

       GROUP rmonFilterGroup
           DESCRIPTION
               "The RMON Filter Group is mandatory when the
               rmonPacketCaptureGroup is implemented."

       GROUP rmonPacketCaptureGroup
           DESCRIPTION
               "The RMON Packet Capture Group is optional."

       GROUP rmonEventGroup
           DESCRIPTION
               "The RMON Event Group is mandatory when the
               rmonAlarmGroup is implemented."
     ::= { rmonCompliances 1 }

     rmonEtherStatsGroup OBJECT-GROUP
         OBJECTS {
             etherStatsIndex, etherStatsDataSource,
             etherStatsDropEvents, etherStatsOctets, etherStatsPkts,
             etherStatsBroadcastPkts, etherStatsMulticastPkts,
             etherStatsCRCAlignErrors, etherStatsUndersizePkts,
             etherStatsOversizePkts, etherStatsFragments,
             etherStatsJabbers, etherStatsCollisions,
             etherStatsPkts64Octets, etherStatsPkts65to127Octets,
             etherStatsPkts128to255Octets,
             etherStatsPkts256to511Octets,
             etherStatsPkts512to1023Octets,
             etherStatsPkts1024to1518Octets,
             etherStatsOwner, etherStatsStatus
         }
         STATUS current
         DESCRIPTION
             "The RMON Ethernet Statistics Group."

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         ::= { rmonGroups 1 }

     rmonHistoryControlGroup OBJECT-GROUP
         OBJECTS {
             historyControlIndex, historyControlDataSource,
             historyControlBucketsRequested,
             historyControlBucketsGranted, historyControlInterval,
             historyControlOwner, historyControlStatus
         }
         STATUS current
         DESCRIPTION
             "The RMON History Control Group."
         ::= { rmonGroups 2 }

     rmonEthernetHistoryGroup OBJECT-GROUP
         OBJECTS {
             etherHistoryIndex, etherHistorySampleIndex,
             etherHistoryIntervalStart, etherHistoryDropEvents,
             etherHistoryOctets, etherHistoryPkts,
             etherHistoryBroadcastPkts, etherHistoryMulticastPkts,
             etherHistoryCRCAlignErrors, etherHistoryUndersizePkts,
             etherHistoryOversizePkts, etherHistoryFragments,
             etherHistoryJabbers, etherHistoryCollisions,
             etherHistoryUtilization
         }
         STATUS current
         DESCRIPTION
             "The RMON Ethernet History Group."
         ::= { rmonGroups 3 }

     rmonAlarmGroup OBJECT-GROUP
         OBJECTS {
             alarmIndex, alarmInterval, alarmVariable,
             alarmSampleType, alarmValue, alarmStartupAlarm,
             alarmRisingThreshold, alarmFallingThreshold,
             alarmRisingEventIndex, alarmFallingEventIndex,
             alarmOwner, alarmStatus
         }
         STATUS current
         DESCRIPTION
             "The RMON Alarm Group."
         ::= { rmonGroups 4 }

     rmonHostGroup OBJECT-GROUP
         OBJECTS {
             hostControlIndex, hostControlDataSource,
             hostControlTableSize, hostControlLastDeleteTime,
             hostControlOwner, hostControlStatus,

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             hostAddress, hostCreationOrder, hostIndex,
             hostInPkts, hostOutPkts, hostInOctets,
             hostOutOctets, hostOutErrors, hostOutBroadcastPkts,
             hostOutMulticastPkts, hostTimeAddress,
             hostTimeCreationOrder, hostTimeIndex,
             hostTimeInPkts, hostTimeOutPkts, hostTimeInOctets,
             hostTimeOutOctets, hostTimeOutErrors,
             hostTimeOutBroadcastPkts, hostTimeOutMulticastPkts
         }
         STATUS current
         DESCRIPTION
             "The RMON Host Group."
         ::= { rmonGroups 5 }

     rmonHostTopNGroup OBJECT-GROUP
         OBJECTS {
             hostTopNControlIndex, hostTopNHostIndex,
             hostTopNRateBase, hostTopNTimeRemaining,
             hostTopNDuration, hostTopNRequestedSize,
             hostTopNGrantedSize, hostTopNStartTime,
             hostTopNOwner, hostTopNStatus,
             hostTopNReport, hostTopNIndex,
             hostTopNAddress, hostTopNRate
         }
         STATUS current
         DESCRIPTION
             "The RMON Host Top 'N' Group."
         ::= { rmonGroups 6 }

     rmonMatrixGroup OBJECT-GROUP
         OBJECTS {
             matrixControlIndex, matrixControlDataSource,
             matrixControlTableSize, matrixControlLastDeleteTime,
             matrixControlOwner, matrixControlStatus,
             matrixSDSourceAddress, matrixSDDestAddress,
             matrixSDIndex, matrixSDPkts,
             matrixSDOctets, matrixSDErrors,
             matrixDSSourceAddress, matrixDSDestAddress,
             matrixDSIndex, matrixDSPkts,
             matrixDSOctets, matrixDSErrors
         }
         STATUS current
         DESCRIPTION
             "The RMON Matrix Group."
         ::= { rmonGroups 7 }

     rmonFilterGroup OBJECT-GROUP
         OBJECTS {

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             filterIndex, filterChannelIndex, filterPktDataOffset,
             filterPktData, filterPktDataMask,
             filterPktDataNotMask, filterPktStatus,
             filterPktStatusMask, filterPktStatusNotMask,
             filterOwner, filterStatus,
             channelIndex, channelIfIndex, channelAcceptType,
             channelDataControl, channelTurnOnEventIndex,
             channelTurnOffEventIndex, channelEventIndex,
             channelEventStatus, channelMatches,
             channelDescription, channelOwner, channelStatus
         }
         STATUS current
         DESCRIPTION
             "The RMON Filter Group."
         ::= { rmonGroups 8 }

     rmonPacketCaptureGroup OBJECT-GROUP
         OBJECTS {
             bufferControlIndex, bufferControlChannelIndex,
             bufferControlFullStatus, bufferControlFullAction,
             bufferControlCaptureSliceSize,
             bufferControlDownloadSliceSize,
             bufferControlDownloadOffset,
             bufferControlMaxOctetsRequested,
             bufferControlMaxOctetsGranted,
             bufferControlCapturedPackets,
             bufferControlTurnOnTime,
             bufferControlOwner, bufferControlStatus,
             captureBufferControlIndex, captureBufferIndex,
             captureBufferPacketID, captureBufferPacketData,
             captureBufferPacketLength, captureBufferPacketTime,
             captureBufferPacketStatus
         }
         STATUS current
         DESCRIPTION
             "The RMON Packet Capture Group."
         ::= { rmonGroups 9 }

     rmonEventGroup OBJECT-GROUP
         OBJECTS {
             eventIndex, eventDescription, eventType,
             eventCommunity, eventLastTimeSent,
             eventOwner, eventStatus,
             logEventIndex, logIndex, logTime,
             logDescription
         }
         STATUS current
         DESCRIPTION

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             "The RMON Event Group."
         ::= { rmonGroups 10 }

     rmonNotificationGroup NOTIFICATION-GROUP
         NOTIFICATIONS { risingAlarm, fallingAlarm }
         STATUS        current
         DESCRIPTION
             "The RMON Notification Group."
         ::= { rmonGroups 11 }
 END

6.  Security Considerations

   In order to implement this MIB, a probe must capture all packets on
   the locally-attached network, including packets between third
   parties.  These packets are analyzed to collect network addresses,
   protocol usage information, and conversation statistics. Data of this
   nature may be considered sensitive in some environments. In such
   environments the administrator may wish to restrict SNMP access to
   the probe.

   This MIB also includes functions for returning the contents of
   captured packets, potentially including sensitive user data or
   passwords. It is recommended that SNMP access to these functions be
   restricted.

   There are a number of management objects defined in this MIB that
   have a MAX-ACCESS clause of read-write and/or read-create.  Such
   objects may be considered sensitive or vulnerable in some network
   environments.  The support for SET operations in a non-secure
   environment without proper protection can have a negative effect on
   network operations.

   SNMPv1 by itself is not a secure environment.  Even if the network
   itself is secure (for example by using IPSec), even then, there is no
   control as to who on the secure network is allowed to access and
   GET/SET (read/change/create/delete) the objects in this MIB.

   It is recommended that the implementors consider the security
   features as provided by the SNMPv3 framework.  Specifically, the use
   of the User-based Security Model RFC 2574 [12] and the View-based
   Access Control Model RFC 2575 [15] is recommended.

   It is then a customer/user responsibility to ensure that the SNMP
   entity giving access to an instance of this MIB, is properly
   configured to give access to the objects only to those principals
   (users) that have legitimate rights to indeed GET or SET
   (change/create/delete) them.

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7.  Acknowledgments

   This document was produced by the IETF Remote Network Monitoring
   Working Group.

8.  Author's Address

   Steve Waldbusser

   Phone: +1-650-948-6500
   Fax:   +1-650-745-0671
   Email: waldbusser@nextbeacon.com

9.  References

   [1]  Harrington, D., Presuhn, R., and B. Wijnen, "An Architecture for
        Describing SNMP Management Frameworks", RFC 2571, April 1999.

   [2]  Rose, M. and K. McCloghrie, "Structure and Identification of
        Management Information for TCP/IP-based Internets", STD 16, RFC
        1155, May 1990.

   [3]  Rose, M. and K. McCloghrie, "Concise MIB Definitions", STD 16,
        RFC 1212, March 1991.

   [4]  Rose, M., "A Convention for Defining Traps for use with the
        SNMP", RFC 1215, March 1991.

   [5]  McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
        M. and S. Waldbusser, "Structure of Management Information
        Version 2 (SMIv2)", STD 58, RFC 2578, April 1999.

   [6]  McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
        M. and S. Waldbusser, "Textual Conventions for SMIv2", STD 58,
        RFC 2579, April 1999.

   [7]  McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
        M. and S. Waldbusser, "Conformance Statements for SMIv2", STD
        58, RFC 2580, April 1999.

   [8]  Case, J., Fedor, M., Schoffstall, M. and J. Davin, "Simple
        Network Management Protocol", STD 15, RFC 1157, May 1990.

   [9]  Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
        "Introduction to Community-based SNMPv2", RFC 1901, January
        1996.

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   [10] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Transport
        Mappings for Version 2 of the Simple Network Management Protocol
        (SNMPv2)", RFC 1906, January 1996.

   [11] Case, J., Harrington D., Presuhn R. and B. Wijnen, "Message
        Processing and Dispatching for the Simple Network Management
        Protocol (SNMP)", RFC 2572, April 1999.

   [12] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM)
        for version 3 of the Simple Network Management Protocol
        (SNMPv3)", RFC 2574, April 1999.

   [13] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Protocol
        Operations for Version 2 of the Simple Network Management
        Protocol (SNMPv2)", RFC 1905, January 1996.

   [14] Levi, D., Meyer, P. and B. Stewart, "SNMPv3 Applications", RFC
        2573, April 1999.

   [15] Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based Access
        Control Model (VACM) for the Simple Network Management Protocol
        (SNMP)", RFC 2575, April 1999.

   [16] McCloghrie, K. and M. Rose, Editors, "Management Information
        Base for Network Management of TCP/IP-based internets: MIB-II",
        STD 17, RFC 1213, March 1991.

   [17] McCloghrie, K. and F. Kastenholz, "The Interfaces Group MIB
        using SMIv2", RFC 2233, November 1997.

   [18] Waldbusser, S., "Remote Network Monitoring MIB", RFC 1757,
        February 1995.

   [19] Waldbusser, S., "Token Ring Extensions to the Remote Network
        Monitoring MIB", RFC 1513, September 1993.

   [20] Waldbusser, S., "Remote Network Monitoring Management
        Information Base Version 2 using SMIv2", RFC 2021, January 1997.

   [21] Waterman, R., Lahaye, B., Romascanu, D. and S.  Waldbusser,
        "Remote Network Monitoring MIB Extensions for Switched Networks
        Version 1.0", RFC 2613, June 1999.

   [22] Case, J., Mundy, R., Partain, D. and B. Stewart, "Introduction
        to Version 3 of the Internet-standard Network Management
        Framework", RFC 2570, April 1999.

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10.  Intellectual Property

   The IETF takes no position regarding the validity or scope of any
   intellectual property or other rights that might be claimed to
   pertain to the implementation or use of the technology described in
   this document or the extent to which any license under such rights
   might or might not be available; neither does it represent that it
   has made any effort to identify any such rights.  Information on the
   IETF's procedures with respect to rights in standards-track and
   standards-related documentation can be found in BCP-11.  Copies of
   claims of rights made available for publication and any assurances of
   licenses to be made available, or the result of an attempt made to
   obtain a general license or permission for the use of such
   proprietary rights by implementors or users of this specification can
   be obtained from the IETF Secretariat.

   The IETF invites any interested party to bring to its attention any
   copyrights, patents or patent applications, or other proprietary
   rights which may cover technology that may be required to practice
   this standard.  Please address the information to the IETF Executive
   Director.

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11.  Full Copyright Statement

   Copyright (C) The Internet Society (2000).  All Rights Reserved.

   This document and translations of it may be copied and furnished to
   others, and derivative works that comment on or otherwise explain it
   or assist in its implementation may be prepared, copied, published
   and distributed, in whole or in part, without restriction of any
   kind, provided that the above copyright notice and this paragraph are
   included on all such copies and derivative works.  However, this
   document itself may not be modified in any way, such as by removing
   the copyright notice or references to the Internet Society or other
   Internet organizations, except as needed for the purpose of
   developing Internet standards in which case the procedures for
   copyrights defined in the Internet Standards process must be
   followed, or as required to translate it into languages other than
   English.

   The limited permissions granted above are perpetual and will not be
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