AD | Application | AWS | Azure | Cloud | Database | Enterprise | Environmental | Event Log | File System | IoT | IT Service | Network/System | Infra | Performance | Protocol | SaaS | Security | Service Level | Storage | Linux | VMware | VoIP | Web | Wireless | SNMP

Crumbtrail

MonitorTools.com » Technical documentation » SNMP » MIB » RFC » INTERFACETOPN-MIB

INTERFACETOPN-MIB device MIB details by RFC

INTERFACETOPN-MIB file content

The SNMP protocol is used to for conveying information and commands between agents and managing entities. SNMP uses the User Datagram Protocol (UDP) as the transport protocol for passing data between managers and agents. The reasons for using UDP for SNMP are, firstly it has low overheads in comparison to TCP, which uses a 3-way hand shake for connection. Secondly, in congested networks, SNMP over TCP is a bad idea because TCP in order to maintain reliability will flood the network with retransmissions.

Management information (MIB) is represented as a collection of managed objects. These objects together form a virtual information base called MIB. An agent may implement many MIBs, but all agents must implement a particular MIB called MIB-II [16]. This standard defines variables for things such as interface statistics (interface speeds, MTU, octets sent, octets received, etc.) as well as various other things pertaining to the system itself (system location, system contact, etc.). The main goal of MIB-II is to provide general TCP/IP management information.

Use ActiveXperts Network Monitor 2024 to import vendor-specific MIB files, inclusing INTERFACETOPN-MIB.


Vendor: RFC
Mib: INTERFACETOPN-MIB  [download]  [view objects]
Tool: ActiveXperts Network Monitor 2024 [download]    (ships with advanced SNMP/MIB tools) 
-- WinAgents MIB Extraction Wizard
-- Extracted from rfc3144.txt 16.03.2005 20:21:55

INTERFACETOPN-MIB DEFINITIONS ::= BEGIN

   IMPORTS
        MODULE-IDENTITY, OBJECT-TYPE, Integer32, Gauge32
                FROM SNMPv2-SMI
        RowStatus, TimeStamp, TruthValue
                FROM SNMPv2-TC
        rmon, OwnerString
                FROM RMON-MIB
        CounterBasedGauge64
                FROM HCNUM-TC
        MODULE-COMPLIANCE, OBJECT-GROUP
                FROM SNMPv2-CONF;

   interfaceTopNMIB MODULE-IDENTITY
        LAST-UPDATED "200103270000Z"
        ORGANIZATION "IETF RMON MIB Working Group"
        CONTACT-INFO
        "

                Dan Romascanu
                Avaya Inc.
                Tel:  +972-3-645-8414
                Email: dromasca@avaya.com"

       DESCRIPTION
          "The MIB module for sorting device interfaces for RMON and
          SMON monitoring in a multiple device implementation."
      ::= { rmon 27 }
interfaceTopNObjects       OBJECT IDENTIFIER ::= { interfaceTopNMIB 1 }
interfaceTopNNotifications OBJECT IDENTIFIER ::= { interfaceTopNMIB 2 }
interfaceTopNConformance   OBJECT IDENTIFIER ::= { interfaceTopNMIB 3 }

-- The Interface Top N group is used to prepare reports that
-- describe a list of interfaces (data sources)
-- ordered by the values of one
-- of the objects that apply to the interfaces of the respective device.
-- Those objects are defined by standard MIBs. The exact objects that
-- are supported by the agent are described by interfaceTopNCaps
-- The objects must be elements in tables indexed only by an
-- InterfaceIndex object.
-- The objects  chosen by the

-- management station may be sampled over a management
-- station-specified time interval, making the report rate based.
-- The management station also specifies the number of interfaces
-- that are reported.
--
-- The interfaceTopNControlTable is used to initiate the generation
-- of a report.  The management station may select the parameters
-- of such a report, such as which object, how
-- many interfaces, and the start & stop times of the sampling.  When
-- the report is prepared, entries are created in the
-- interfaceTopNTable associated with the relevant
-- interfaceTopNControlEntry.  These entries are static for
-- each report after it has been prepared.

interfaceTopNCaps   OBJECT-TYPE
    SYNTAX      BITS {
               ifInOctets(0),
               ifInUcastPkts(1),
               ifInNUcastPkts(2),
               ifInDiscards(3),
               ifInErrors(4),
               ifInUnknownProtos(5),
               ifOutOctets(6),
               ifOutUcastPkts(7),
               ifOutNUcastPkts(8),
               ifOutDiscards(9),
               ifOutErrors(10),
               ifInMulticastPkts(11),
               ifInBroadcastPkts(12),
               ifOutMulticastPkts(13),
               ifOutBroadcastPkts(14),
               ifHCInOctets(15),
               ifHCInUcastPkts(16),
               ifHCInMulticastPkts(17),
               ifHCInBroadcastPkts(18),
               ifHCOutOctets(19),
               ifHCOutUcastPkts(20),
               ifHCOutMulticastPkts(21),
               ifHCOutBroadcastPkts(22),
               dot3StatsAlignmentErrors(23),
               dot3StatsFCSErrors(24),
               dot3StatsSingleCollisionFrames(25),
               dot3StatsMultipleCollisionFrames(26),
               dot3StatsSQETestErrors(27),
               dot3StatsDeferredTransmissions(28),
               dot3StatsLateCollisions(29),
               dot3StatsExcessiveCollisions(30),
               dot3StatsInternalMacTxErrors(31),

               dot3StatsCarrierSenseErrors(32),
               dot3StatsFrameTooLongs(33),
               dot3StatsInternalMacRxErrors(34),
               dot3StatsSymbolErrors(35),
               dot3InPauseFrames(36),
               dot3OutPauseFrames(37),
               dot5StatsLineErrors(38),
               dot5StatsBurstErrors(39),
               dot5StatsACErrors(40),
               dot5StatsAbortTransErrors(41),
               dot5StatsInternalErrors(42),
               dot5StatsLostFrameErrors(43),
               dot5StatsReceiveCongestions(44),
               dot5StatsFrameCopiedErrors(45),
               dot5StatsTokenErrors(46),
               dot5StatsSoftErrors(47),
               dot5StatsHardErrors(48),
               dot5StatsSignalLoss(49),
               dot5StatsTransmitBeacons(50),
               dot5StatsRecoverys(51),
               dot5StatsLobeWires(52),
               dot5StatsRemoves(53),
               dot5StatsSingles(54),
               dot5StatsFreqErrors(55),
               etherStatsDropEvents(56),
               etherStatsOctets(57),
               etherStatsPkts(58),
               etherStatsBroadcastPkts(59),
               etherStatsMulticastPkts(60),
               etherStatsCRCAlignErrors(61),
               etherStatsUndersizePkts(62),
               etherStatsOversizePkts(63),
               etherStatsFragments(64),
               etherStatsJabbers(65),
               etherStatsCollisions(66),
               etherStatsPkts64Octets(67),
               etherStatsPkts65to127Octets(68),
               etherStatsPkts128to255Octets(69),
               etherStatsPkts256to511Octets(70),
               etherStatsPkts512to1023Octets(71),
               etherStatsPkts1024to1518Octets(72),
               dot1dTpPortInFrames(73),
               dot1dTpPortOutFrames(74),
               dot1dTpPortInDiscards(75)
    }
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION

"The type(s) of sorting capabilities supported by the agent.

If the agent can perform sorting of interfaces according to the
values of ifInOctets, as defined in [RFC2863],
then the 'ifInOctets' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifInUcastPkts, as defined in [RFC2863],
then the 'ifInUcastPkts' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifInNUcastPkts, as defined in [RFC2863],
then the 'ifInNUcastPkts' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifInDiscards, as defined in [RFC2863],
then the 'ifInDiscards' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifInErrors, as defined in [RFC2863],
then the 'ifInErrors' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifInUnknownProtocols, as defined in [RFC2863],
then the 'ifInUnknownProtocols' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifOutOctets, as defined in [RFC2863],
then the 'ifOutOctets' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifOutUcastPackets, as defined in [RFC2863],
then the 'ifOutUcastPackets' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifOutNUcastPackets, as defined in [RFC2863],
then the 'ifOutNUcastPackets' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifOutDiscards, as defined in [RFC2863],
then the 'ifOutDiscards' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifOutErrors, as defined in [RFC2863],
then the 'ifOutErrors' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifInMulticastPkts, as defined in [RFC2863],

then the 'ifInMulticastPkts' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifInBroadcastPkts, as defined in [RFC2863],
then the 'ifInBroadcastPkts' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifOutMulticastPkts, as defined in [RFC2863],
then the 'ifOutMulticastPkts' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifOutBroadcastPkts, as defined in [RFC2863],
then the 'ifOutBroadcastPkts' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifHCInOctets, as defined in [RFC2863],
then the 'ifHCInOctets' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifHCInMulticastPkts, as defined in [RFC2863],
then the 'ifHCInMulticastPkts' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifHCInBroadcastPkts, as defined in [RFC2863],
then the 'ifHCInBroadcastPkts' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifHCOutOctets, as defined in [RFC2863],
then the 'ifHCOutOctets' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifHCOutUcastPkts, as defined in [RFC2863],
then the 'ifHCOutUcastPkts' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifHCOutMulticastPkts, as defined in [RFC2863],
then the 'ifHCOutMulticastPkts' bit will be set.

If the agent can perform sorting of interfaces according to the
values of ifHCOutBroadcastPkts, as defined in [RFC2863],
then the 'ifHCOutBroadcastPkts' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot3StatsAlignmentErrors, as defined in [RFC2665],
then the 'dot3StatsAlignmentErrors' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot3StatsFCSErrors, as defined in [RFC2665],

then the 'dot3StatsFCSErrors' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot3StatsSingleCollisionFrames, as defined in
[RFC2665],then the 'dot3StatsSingleCollisionFrames' bit will
be set.

If the agent can perform sorting of interfaces according to the
values of dot3StatsSQETestErrors, as defined in [RFC2665],
then the 'dot3StatsSQETestErrors' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot3StatsDeferredTransmissions, as defined in
[RFC2665], then the 'dot3StatsDeferredTransmissions' bit
will be set.

If the agent can perform sorting of interfaces according to the
values of dot3StatsLateCollisions, as defined in [RFC2665],
then the 'dot3StatsLateCollisions' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot3StatsExcessiveCollisions, as defined in [RFC2665],
then the 'dot3StatsExcessiveCollisions' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot3StatsInternalMacTxErrors, as defined in
[RFC2665],then the 'dot3StatsInternalMacTxErrors' bit
will be set.

If the agent can perform sorting of interfaces according to the
values of dot3StatsCarrierSenseErrors, as defined in [RFC2665],
then the 'dot3StatsCarrierSenseErrors' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot3StatsFrameTooLongs, as defined in [RFC2665],
then the 'dot3StatsFrameTooLongs' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot3StatsInternalMacRxErrors, as defined in
[RFC2665], then the 'dot3StatsInternalMacRxErrors' bit
will be set.

If the agent can perform sorting of interfaces according to the
values of dot3StatsSymbolErrors, as defined in [RFC2665],
then the 'dot3StatsSymbolErrors' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot3InPauseFrames, as defined in [RFC2665],

then the 'dot3InPauseFrames' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot3OutPauseFrames, as defined in [RFC2665],
then the 'dot3OutPauseFrames' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot5StatsLineErrors, as defined in [RFC1748],
then the 'dot5StatsLineErrors' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot5StatsBurstErrors, as defined in [RFC1748],
then the 'dot5StatsBurstErrors' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot5StatsACErrors, as defined in [RFC1748],
then the 'dot5StatsACErrors' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot5StatsAbortTransErrors, as defined in [RFC1748],
then the 'dot5StatsAbortTransErrors' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot5StatsInternalErrors, as defined in [RFC1748],
then the 'dot5StatsInternalErrors' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot5StatsLostFrameErrors, as defined in [RFC1748],
then the 'dot5StatsLostFrameErrors' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot5StatsReceiveCongestionErrors, as defined in
[RFC1748], then the 'dot5StatsReceiveCongestionErrors' bit will
be set.

If the agent can perform sorting of interfaces according to the
values of dot5StatsFrameCopiedErrors, as defined in [RFC1748],
then the 'dot5StatsFrameCopiedErrors' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot5StatsTokenErrors, as defined in [RFC1748],
then the 'dot5StatsTokenErrors' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot5StatsSoftErrors, as defined in [RFC1748],
then the 'dot5StatsSoftErrors' bit will be set.

If the agent can perform sorting of interfaces according to the

values of dot5StatsHardErrors, as defined in [RFC1748],
then the 'dot5StatsHardErrors' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot5StatsSignalLoss, as defined in [RFC1748],
then the 'dot5StatsSignalLoss' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot5StatsTransmitBeacons, as defined in [RFC1748],
then the 'dot5StatsTransmitBeacons' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot5StatsRecoverys, as defined in [RFC1748],
then the 'dot5StatsRecoverys' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot5StatsLobeWires, as defined in [RFC1748],
then the 'dot5StatsLobeWires' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot5StatsRemoves, as defined in [RFC1748],
then the 'dot5StatsRemoves' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot5StatsSingles, as defined in [RFC1748],
then the 'dot5StatsSingles' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot5StatsFreqErrors, as defined in [RFC1748],
then the 'dot5StatsFreqErrors' bit will be set.

If the agent can perform sorting of interfaces according to the
values of etherStatsDropEvents, as defined in [RFC2819],
then the 'etherStatsDropEvents' bit will be set.

If the agent can perform sorting of interfaces according to the
values of etherStatsOctets, as defined in [RFC2819],
then the 'etherStatsOctets' bit will be set.

If the agent can perform sorting of interfaces according to the
values of etherStatsPkts, as defined in [RFC2819],
then the 'etherStatsPkts' bit will be set.

If the agent can perform sorting of interfaces according to the
values of etherStatsBroadcastPkts, as defined in [RFC2819],
then the 'etherStatsBroadcastPkts' bit will be set.

If the agent can perform sorting of interfaces according to the

values of etherStatsMulticastPkts, as defined in [RFC2819],
then the 'etherStatsMulticastPkts' bit will be set.

If the agent can perform sorting of interfaces according to the
values of etherStatsCRCAlignErrors, as defined in [RFC2819],
then the 'etherStatsCRCAlignErrors' bit will be set.

If the agent can perform sorting of interfaces according to the
values of etherStatsUndersizePkts, as defined in [RFC2819],
then the 'etherStatsUndersizePkts' bit will be set.

If the agent can perform sorting of interfaces according to the
values of etherStatsOversizePkts, as defined in [RFC2819],
then the 'etherStatsOversizePkts' bit will be set.

If the agent can perform sorting of interfaces according to the
values of etherStatsFragments, as defined in [RFC2819],
then the 'etherStatsFragments' bit will be set.

If the agent can perform sorting of interfaces according to the
values of etherStatsJabbers, as defined in [RFC2819],
then the 'etherStatsJabbers' bit will be set.

If the agent can perform sorting of interfaces according to the
values of etherStatsCollisions, as defined in [RFC2819],
then the 'etherStatsCollisions' bit will be set.

If the agent can perform sorting of interfaces according to the
values of etherStatsPkts64Octets, as defined in [RFC2819],
then the 'etherStatsPkts64Octets' bit will be set.

If the agent can perform sorting of interfaces according to the
values of etherStatsPkts65to127Octets, as defined in [RFC2819],
then the 'etherStatsPkts65to127Octets' bit will be set.

If the agent can perform sorting of interfaces according to the
values of etherStatsPkts128to255Octets, as defined in [RFC2819],
then the 'etherStatsPkts128to255Octets' bit will be set.

If the agent can perform sorting of interfaces according to the
values of etherStatsPkts256to511Octets, as defined in [RFC2819],
then the 'etherStatsPkts256to511Octets' bit will be set.

If the agent can perform sorting of interfaces according to the
values of etherStatsPkts512to1023Octets, as defined in [RFC2819],
then the 'etherStatsPkts512to1023Octets' bit will be set.

If the agent can perform sorting of interfaces according to the

values of etherStatsPkts1024to1518Octets, as defined in
[RFC2819], then the 'etherStatsPkts1024to1518Octets' bit will
be set.


If the agent can perform sorting of interfaces according to the
values of dot1dTpPortInFrames, as defined in [RFC1493],
then the 'dot1dTpPortInFrames' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot1dTpPortOutFrames, as defined in [RFC1493],
then the 'dot1dTpPortOutFrames' bit will be set.

If the agent can perform sorting of interfaces according to the
values of dot1dTpPortInDiscards, as defined in [RFC1493],
then the 'dot1dTpPortInDiscards' bit will be set."

    ::= { interfaceTopNObjects 1 }



  interfaceTopNControlTable OBJECT-TYPE
       SYNTAX      SEQUENCE OF InterfaceTopNControlEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
        "A table of control records for reports on the top `N'
        interfaces for the value or rate of a selected object.
        The number of entries depends on the configuration of the agent.
        The maximum number of entries is implementation
        dependent."
     ::= { interfaceTopNObjects 2 }

   interfaceTopNControlEntry OBJECT-TYPE
       SYNTAX      InterfaceTopNControlEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
               "A set of parameters that control the creation of a
               report of the top N ports according to several metrics."
       INDEX    { interfaceTopNControlIndex }
       ::= { interfaceTopNControlTable 1 }

   InterfaceTopNControlEntry ::= SEQUENCE {
       interfaceTopNControlIndex
           Integer32,
       interfaceTopNObjectVariable
           INTEGER,

       interfaceTopNObjectSampleType
           INTEGER,
       interfaceTopNNormalizationReq
           TruthValue,
       interfaceTopNNormalizationFactor
           Integer32,
       interfaceTopNTimeRemaining
           Integer32,
       interfaceTopNDuration
           Integer32,
       interfaceTopNRequestedSize
           Integer32,
       interfaceTopNGrantedSize
           Integer32,
       interfaceTopNStartTime
           TimeStamp,
       interfaceTopNOwner
           OwnerString,
       interfaceTopNLastCompletionTime
           TimeStamp,
       interfaceTopNRowStatus
           RowStatus
   }

   interfaceTopNControlIndex OBJECT-TYPE
       SYNTAX      Integer32 (1 .. 65535)
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
          "An index that uniquely identifies an entry in the
          interfaceTopNControl table.  Each such entry defines
          one top N report prepared for a probe."
       ::= { interfaceTopNControlEntry 1 }


interfaceTopNObjectVariable OBJECT-TYPE
    SYNTAX INTEGER   {
               ifInOctets(0),
               ifInUcastPkts(1),
               ifInNUcastPkts(2),
               ifInDiscards(3),
               ifInErrors(4),
               ifInUnknownProtos(5),
               ifOutOctets(6),
               ifOutUcastPkts(7),
               ifOutNUcastPkts(8),
               ifOutDiscards(9),
               ifOutErrors(10),

               ifInMulticastPkts(11),
               ifInBroadcastPkts(12),
               ifOutMulticastPkts(13),
               ifOutBroadcastPkts(14),
               ifHCInOctets(15),
               ifHCInUcastPkts(16),
               ifHCInMulticastPkts(17),
               ifHCInBroadcastPkts(18),
               ifHCOutOctets(19),
               ifHCOutUcastPkts(20),
               ifHCOutMulticastPkts(21),
               ifHCOutBroadcastPkts(22),
               dot3StatsAlignmentErrors(23),
               dot3StatsFCSErrors(24),
               dot3StatsSingleCollisionFrames(25),
               dot3StatsMultipleCollisionFrames(26),
               dot3StatsSQETestErrors(27),
               dot3StatsDeferredTransmissions(28),
               dot3StatsLateCollisions(29),
               dot3StatsExcessiveCollisions(30),
               dot3StatsInternalMacTxErrors(31),
               dot3StatsCarrierSenseErrors(32),
               dot3StatsFrameTooLongs(33),
               dot3StatsInternalMacRxErrors(34),
               dot3StatsSymbolErrors(35),
               dot3InPauseFrames(36),
               dot3OutPauseFrames(37),
               dot5StatsLineErrors(38),
               dot5StatsBurstErrors(39),
               dot5StatsACErrors(40),
               dot5StatsAbortTransErrors(41),
               dot5StatsInternalErrors(42),
               dot5StatsLostFrameErrors(43),
               dot5StatsReceiveCongestions(44),
               dot5StatsFrameCopiedErrors(45),
               dot5StatsTokenErrors(46),
               dot5StatsSoftErrors(47),
               dot5StatsHardErrors(48),
               dot5StatsSignalLoss(49),
               dot5StatsTransmitBeacons(50),
               dot5StatsRecoverys(51),
               dot5StatsLobeWires(52),
               dot5StatsRemoves(53),
               dot5StatsSingles(54),
               dot5StatsFreqErrors(55),
               etherStatsDropEvents(56),
               etherStatsOctets(57),
               etherStatsPkts(58),

               etherStatsBroadcastPkts(59),
               etherStatsMulticastPkts(60),
               etherStatsCRCAlignErrors(61),
               etherStatsUndersizePkts(62),
               etherStatsOversizePkts(63),
               etherStatsFragments(64),
               etherStatsJabbers(65),
               etherStatsCollisions(66),
               etherStatsPkts64Octets(67),
               etherStatsPkts65to127Octets(68),
               etherStatsPkts128to255Octets(69),
               etherStatsPkts256to511Octets(70),
               etherStatsPkts512to1023Octets(71),
               etherStatsPkts1024to1518Octets(72),
               dot1dTpPortInFrames(73),
               dot1dTpPortOutFrames(74),
               dot1dTpPortInDiscards(75)
}
    MAX-ACCESS read-create
    STATUS current
    DESCRIPTION
    "The particular variable to be sampled.

    Values between 0 and 22, point to MIB objects defined in
    IF-MIB [RFC2863].

    Values between 23 and 37, point to MIB objects defined in
    EtherLike-MIB [RFC2665].

    Values between 38 and 55, point to MIB objects defined in
    TOKENRING-MIB [RFC1748].

    Values between 56 and 72, point to MIB objects defined in
    RMON-MIB [RFC2819].

    Values between 73 and 75, point to MIB objects defined in
    BRIDGE-MIB [RFC1493].

    Because SNMP access control is articulated entirely in terms
    of the contents of MIB views, no access control mechanism
    exists that can restrict the value of this object to identify
    only those objects that exist in a particular MIB view.
    Because there is thus no acceptable means of restricting the
    read access that could be obtained through the TopN
    mechanism, the probe must only grant write access to this
    object in those views that have read access to all objects on
    the probe.


    During a set operation, if the supplied variable name is not
    available in the selected MIB view, or does not conform the
    other conditions mentioned above, a badValue error must be
    returned.

    This object may not be modified if the associated
    interfaceTopNControlStatus object is equal to active(1)."
 ::= { interfaceTopNControlEntry 2 }

interfaceTopNObjectSampleType OBJECT-TYPE
    SYNTAX INTEGER {
               absoluteValue(1),
               deltaValue(2),
               bandwidthPercentage(3)
           }
    MAX-ACCESS read-create
    STATUS current
    DESCRIPTION
     "The method of sampling the selected variable for storage in
     the interfaceTopNTable.

     If the value of this object is absoluteValue(1), the value of
     the selected variable will be copied directly into the topNValue.

     If the value of this object is deltaValue(2), the value of the
     selected variable at the last sample will be subtracted from
     the current value, and the difference will be stored in topNValue.

     If the value of this object is bandwidthPercentage(3), the agent
     records the total number of octets sent over an interval divided
     by the total number of octets that represent '100% bandwidth'
     for that interface. This ratio is multiplied by 1000 to
     retain a 3 digit integer (0..1000) in units of
     'tenth of one percent'. This type of computation is accurate for
     the octet counters. The usage of this option with respect to
     packets or error counters is not recommended.

     This object may not be modified if the associated
     interfaceTopNControlStatus object is equal to active(1)."
  ::= { interfaceTopNControlEntry 3 }


interfaceTopNNormalizationReq OBJECT-TYPE
    SYNTAX TruthValue
    MAX-ACCESS read-create
    STATUS current
    DESCRIPTION
    "This object indicates whether  normalization is required in the

    computation of the selected value.

    If the value of this object is 'true', the value of
    the selected variable will be multiplied by a factor equal to the
    interfaceTopNNormalizationFactor divided by the value of
    effective speed of the interface

    If the value of this object is 'false',
    the value of the selected variable will be taken 'as is' in
    the TopN computation.

    If the value of the object interfaceTopNSampleType is
    bandwidthPercentage(3), the object
    interfaceTopNNormalizationReq cannot take the value 'true'.

    The value of this object MUST be false if the effective speed of
    the interface sub-layer as determined from ifSpeed is zero. This
    conforms to the ifSpeed definition in [RFC2863]for a sub-layer
    that has no concept of bandwidth.

    This object may not be modified if the associated
    interfaceTopNControlStatus object is equal to active(1)."
  ::= { interfaceTopNControlEntry 4 }

interfaceTopNNormalizationFactor OBJECT-TYPE
    SYNTAX Integer32 (1..2147483647)
    MAX-ACCESS read-create
    STATUS current
    DESCRIPTION
    "The value used for normalization if
    interfaceTopNNormalizationReq has the value 'true'.

 Example:
  The following set of values is applied to a device with multiple
  Ethernet interfaces running at 10 Mbps, 100 Mbps, and 1 Gbps.
  interfaceTopNObjectVariable = 'ifInOctets'
  interfaceTopNObjectSampleType = 'deltaValue'
  interfaceTopNNormalizationReq = 'true'
  interfaceTopNNormalizationFactor = 1000000000
  Applying this set of values will result in the sampled delta values
  to be multiplied by 100 for the 10 Mbps interfaces, and by 10 for
  the 100 Mbps interfaces, while the sample values for the 1 Gbps
  interface are left unchanged. The effective speed of the interface is
  taken from the value of ifSpeed for each interface, if ifSpeed is
  less than 4,294,967,295, or from ifHighSpeed multiplied by
  1,000,000 otherwise.

  At row creation the agent SHOULD set the value of this object to

  the effective speed of the interface."
::= { interfaceTopNControlEntry 5 }

interfaceTopNTimeRemaining OBJECT-TYPE
       SYNTAX      Integer32 (0..2147483647)
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
         "The number of seconds left in the report
         currently being collected.  When this object
         is modified by the management station, a new
         collection is started, possibly aborting a
         currently running report.  The new value is
         used as the requested duration of this report,
         which is loaded into the associated
         interfaceTopNDuration object.

         When this object is set to a non-zero value,
         any associated interfaceTopNEntries shall be
         made inaccessible by the agent.  While the value
         of this object is non-zero, it decrements by one
         per second until it reaches zero.  During this
         time, all associated interfaceTopNEntries shall
         remain inaccessible.  At the time that this object
         decrements to zero, the report is made accessible
         in the interfaceTopNTable.  Thus, the interfaceTopN
         table needs to be created only at the end of the
         collection interval.

         If the value of this object is set to zero
         while the associated report is running, the
         running report is aborted and no associated
         interfaceTopNEntries are created."
     DEFVAL { 0 }
     ::= { interfaceTopNControlEntry 6 }

   interfaceTopNDuration OBJECT-TYPE
       SYNTAX      Integer32 (0..2147483647)
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
        "The number of seconds that this report has
        collected during the last sampling interval,
        or if this report is currently being collected,
        the number of seconds that this report is being
        collected during this sampling interval.

        When the associated interfaceTopNTimeRemaining

        object is set, this object shall be set by the
        agent to the same value and shall not be modified
        until the next time the interfaceTopNTimeRemaining
        is set.

        This value shall be zero if no reports have been
        requested for this interfaceTopNControlEntry."
     ::= { interfaceTopNControlEntry 7 }

   interfaceTopNRequestedSize OBJECT-TYPE
       SYNTAX      Integer32
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
         "The maximum number of interfaces requested
         for the Top N Table.

         When this object is created or modified, the
         agent should set interfaceTopNGrantedSize as close
         to this object as is possible for the particular
         implementation and available resources."
       DEFVAL { 10 }
       ::= { interfaceTopNControlEntry 8 }

   interfaceTopNGrantedSize OBJECT-TYPE
       SYNTAX      Integer32 (0.. 2147483647)
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
         "The maximum number of interfaces in the
         top N table.

         When the associated interfaceTopNRequestedSize object is
         created or modified, the agent should set this object as
         closely to the requested value as is possible for the
         particular implementation and available resources.  The
         agent must not lower this value except as a result of a
         set to the associated interfaceTopNRequestedSize object."
     ::= { interfaceTopNControlEntry 9 }

   interfaceTopNStartTime OBJECT-TYPE
       SYNTAX      TimeStamp
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
       "The value of sysUpTime when this top N report was
       last started.  In other words, this is the time that
       the associated interfaceTopNTimeRemaining object was

       modified to start the requested report.

       If the report has not yet been started, the value
       of this object is zero."
  ::= { interfaceTopNControlEntry 10 }

   interfaceTopNOwner OBJECT-TYPE
       SYNTAX      OwnerString
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
               "The entity that configured this entry and is
               using the resources assigned to it."
       ::= { interfaceTopNControlEntry 11 }

   interfaceTopNLastCompletionTime OBJECT-TYPE
       SYNTAX      TimeStamp
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
        "The value of sysUpTime when this top N report was
        last completed. If no report was yet completed, the value
        of this object is zero."
     ::= { interfaceTopNControlEntry 12 }


   interfaceTopNRowStatus OBJECT-TYPE
       SYNTAX      RowStatus
       MAX-ACCESS  read-create
       STATUS      current
       DESCRIPTION
              "The status of this row.

              If the value of this object is not equal to
              active(1), all associated entries in the
              interfaceTopNTable shall be deleted by the
              agent."
       ::= { interfaceTopNControlEntry 13 }


   -- Interface Top "N" reports

   interfaceTopNTable OBJECT-TYPE
       SYNTAX      SEQUENCE OF InterfaceTopNEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
         "A table of reports for the top `N' ports based on

         setting of associated control table entries. The
         maximum number of entries depends on the number
         of entries in table interfaceTopNControlTable and
         the value of object interfaceTopNGrantedSize for
         each entry.

         For each entry in the interfaceTopNControlTable,
         interfaces with the highest value of
         interfaceTopNValue shall be placed in this table
         in decreasing order of that rate until there is
         no more room or until there are no more ports."
       ::= { interfaceTopNObjects 3 }

   interfaceTopNEntry OBJECT-TYPE
       SYNTAX      InterfaceTopNEntry
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
               "A set of statistics for an interface that is
               part of a top N report."
       INDEX    { interfaceTopNControlIndex,
                  interfaceTopNIndex }
       ::= { interfaceTopNTable 1 }

   InterfaceTopNEntry ::= SEQUENCE {
       interfaceTopNIndex
           Integer32,
       interfaceTopNDataSourceIndex
           Integer32,
       interfaceTopNValue
           Gauge32,
       interfaceTopNValue64
           CounterBasedGauge64
   }

   interfaceTopNIndex OBJECT-TYPE
       SYNTAX      Integer32 (1..65535)
       MAX-ACCESS  not-accessible
       STATUS      current
       DESCRIPTION
         "An index that uniquely identifies an entry in
         the interfaceTopN table among those in the same
         report.  This index is between 1 and N, where N
         is the number of entries in this report.  Increasing
         values of interfaceTopNIndex shall be assigned to
         entries with decreasing values of interfaceTopNValue
         or interfaceTopNValue64, whichever applies,
         until index N is assigned to the entry with the

         lowest value of interfaceTopNValue /
         interfaceTopNValue64 or there are no
         more interfaceTopNEntries.

         No ports are included in a report where their
         value of interfaceTopNValue would be zero."
     ::= { interfaceTopNEntry 1 }

   interfaceTopNDataSourceIndex OBJECT-TYPE
       SYNTAX      Integer32  (1..2147483647)
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
         "This object identifies the index corresponding
          to the dataSource for this entry.

          For sorted values of variables belonging to the
          IF-MIB, EtherLike-MIB or TOKENRING-MIB, this value
          equals the ifIndex of the interface.

          For sorted values of variables belonging to the
          RMON-MIB, this value equals the interface corresponding
          to the data source, pointed to by the value
          of etherStatsDataSource.

          For sorted values of variables belonging to the
          BRIDGE-MIB, this value equals the interface corresponding
          to the bridge port, pointed to by the value
          of dot1dBasePortIfIndex."
       ::= { interfaceTopNEntry 2 }

   interfaceTopNValue OBJECT-TYPE
       SYNTAX      Gauge32
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
         "The value at the end of the sampling interval, or
         the amount of change in the selected variable
         during this sampling interval for the identified
         interface.  The selected variable is that interfaces's
         instance of the object selected by
         interfaceTopNObjectVariable. This value may be normalized
         if interfaceTopNNormalization required equals 'true'.
         This value of this object will be computed for all
         cases when interfaceTopNObjectVariable points to a
         32-bit counter or Gauge or when
         interfaceTopNObjectSampleType equals bandwidthPercentage(3),
         and will be zero for all other cases."

       ::= { interfaceTopNEntry 3 }

   interfaceTopNValue64 OBJECT-TYPE
       SYNTAX      CounterBasedGauge64
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
         "The value at the end of the sampling interval, or
         the amount of change in the selected variable
         during this sampling interval for the identified
         interface.  The selected variable is that interfaces's
         instance of the object selected by
         interfaceTopNObjectVariable. This value may be normalized
         if interfaceTopNNormalization required equals 'true'.
         This value of this object will be computed for all
         cases when interfaceTopNObjectVariable points to
         a 64-bit counter, and will be zero for all other cases."
       ::= { interfaceTopNEntry 4 }


--
-- Notifications Section
-- (none defined)
--

--
-- Conformance Section
--

interfaceTopNCompliances OBJECT IDENTIFIER ::=
                                           {interfaceTopNConformance 1 }
interfaceTopNGroups      OBJECT IDENTIFIER ::=
                                           {interfaceTopNConformance 2 }

interfaceTopNCompliance MODULE-COMPLIANCE
    STATUS  current
    DESCRIPTION
            "Describes the requirements for conformance to the
            InterfaceTopN MIB."
        MODULE  -- this module
        MANDATORY-GROUPS { interfaceTopNGroup }
      ::= { interfaceTopNCompliances 1 }

interfaceTopNGroup OBJECT-GROUP
    OBJECTS {
       interfaceTopNCaps,
       interfaceTopNObjectVariable,
       interfaceTopNObjectSampleType,

       interfaceTopNNormalizationReq,
       interfaceTopNNormalizationFactor,
       interfaceTopNTimeRemaining,
       interfaceTopNDuration,
       interfaceTopNRequestedSize,
       interfaceTopNGrantedSize,
       interfaceTopNStartTime,
       interfaceTopNOwner,
       interfaceTopNLastCompletionTime,
       interfaceTopNRowStatus,
       interfaceTopNDataSourceIndex,
       interfaceTopNValue,
       interfaceTopNValue64
    }
    STATUS  current
    DESCRIPTION
         "A collection of objects providing interfaceTopN data for
         a multiple interfaces device."
::= { interfaceTopNGroups 1 }

END