PC World 2001 August/PCWorld_2001-08_cd.bin/Komunikace/phptriad/phptriadsetup2-11.exe/php/mibs/RMON-MIB.txt

Text File | 1999-11-15 | 126KB | 3,678 lines

RMON-MIB DEFINITIONS ::= BEGIN

    IMPORTS
    Counter                FROM RFC1155-SMI
    DisplayString          FROM RFC1158-MIB
    mib-2                  FROM RFC1213-MIB
    OBJECT-TYPE            FROM RFC-1212
    TRAP-TYPE              FROM RFC-1215;

--  Remote Network Monitoring MIB

    rmon    OBJECT IDENTIFIER ::= { mib-2 16 }


    -- textual conventions

    OwnerString ::= DisplayString
    -- This data type is used to model an administratively
    -- assigned name of the owner of a resource. This
    -- information is taken from the NVT ASCII character
    -- set.  It is suggested that this name contain one or
    -- more of the following: IP address, management station
    -- name, network manager's name, location, or phone
    -- number.
    -- In some cases the agent itself will be the owner of
    -- an entry.  In these cases, this string shall be set
    -- to a string starting with 'monitor'.
    --
    -- SNMP access control is articulated entirely in terms
    -- of the contents of MIB views; access to a particular
    -- SNMP object instance depends only upon its presence
    -- or absence in a particular MIB view and never upon
    -- its value or the value of related object instances.
    -- Thus, objects of this type afford resolution of
    -- resource contention only among cooperating managers;
    -- they realize no access control function with respect
    -- to uncooperative parties.
    --
    -- By convention, objects with this syntax are declared as
    -- having
    --
    --      SIZE (0..127)

    EntryStatus ::= INTEGER
           { valid(1),
         createRequest(2),
         underCreation(3),
         invalid(4)
           }
    -- The status of a table entry.
    --
    -- Setting this object to the value invalid(4) has the
    -- effect of invalidating the corresponding entry.
    -- That is, it effectively disassociates the mapping
    -- identified with said entry.
    -- It is an implementation-specific matter as to whether
    -- the agent removes an invalidated entry from the table.
    -- Accordingly, management stations must be prepared to
    -- receive tabular information from agents that
    -- corresponds to entries currently not in use.  Proper
    -- interpretation of such entries requires examination
    -- of the relevant EntryStatus object.
    --
    -- An existing instance of this object cannot be set to
    -- createRequest(2).  This object may only be set to
    -- createRequest(2) when this instance is created.  When
    -- this object is created, the agent may wish to create
    -- supplemental object instances with default values
    -- to complete a conceptual row in this table.  Because
    -- the creation of these default objects is entirely at
    -- the option of the agent, the manager must not assume
    -- that any will be created, but may make use of any that
    -- are created. Immediately after completing the create
    -- operation, the agent must set this object to
    -- underCreation(3).
    --
    -- When in the underCreation(3) state, an entry is
    -- allowed to exist in a possibly incomplete, possibly
    -- inconsistent state, usually to allow it to be
    -- modified in mutiple PDUs.  When in this state, an
    -- entry is not fully active.  Entries shall exist in
    -- the underCreation(3) state until the management
    -- station is finished configuring the entry and sets
    -- this object to valid(1) or aborts, setting this
    -- object to invalid(4).  If the agent determines that
    -- an entry has been in the underCreation(3) state for
    -- an abnormally long time, it may decide that the
    -- management station has crashed.  If the agent makes
    -- this decision, it may set this object to invalid(4)
    -- to reclaim the entry.  A prudent agent will
    -- understand that the management station may need to
    -- wait for human input and will allow for that
    -- possibility in its determination of this abnormally
    -- long period.
    --
    -- An entry in the valid(1) state is fully configured and
    -- consistent and fully represents the configuration or
    -- operation such a row is intended to represent.  For
    -- example, it could be a statistical function that is
    -- configured and active, or a filter that is available
    -- in the list of filters processed by the packet capture
    -- process.
    --
    -- A manager is restricted to changing the state of an
    -- entry in the following ways:
    --
    --                       create   under
    --      To:       valid  Request  Creation  invalid
    -- From:
    -- valid             OK       NO        OK       OK
    -- createRequest    N/A      N/A       N/A      N/A
    -- underCreation     OK       NO        OK       OK
    -- invalid           NO       NO        NO       OK
    -- nonExistent       NO       OK        NO       OK
    --
    -- In the table above, it is not applicable to move the
    -- state from the createRequest state to any other
    -- state because the manager will never find the
    -- variable in that state.  The nonExistent state is
    -- not a value of the enumeration, rather it means that
    -- the entryStatus variable does not exist at all.
    --
    -- An agent may allow an entryStatus variable to change
    -- state in additional ways, so long as the semantics
    -- of the states are followed.  This allowance is made
    -- to ease the implementation of the agent and is made
    -- despite the fact that managers should never
    -- excercise these additional state transitions.


    statistics        OBJECT IDENTIFIER ::= { rmon 1 }
    history           OBJECT IDENTIFIER ::= { rmon 2 }
    alarm             OBJECT IDENTIFIER ::= { rmon 3 }
    hosts             OBJECT IDENTIFIER ::= { rmon 4 }
    hostTopN          OBJECT IDENTIFIER ::= { rmon 5 }
    matrix            OBJECT IDENTIFIER ::= { rmon 6 }
    filter            OBJECT IDENTIFIER ::= { rmon 7 }
    capture           OBJECT IDENTIFIER ::= { rmon 8 }
    event             OBJECT IDENTIFIER ::= { rmon 9 }


-- The Ethernet Statistics Group
--
-- Implementation of the Ethernet Statistics group is
-- optional.
--
-- The ethernet statistics group contains statistics
-- measured by the probe for each monitored interface on
-- this device.  These statistics take the form of free
-- running counters that start from zero when a valid entry
-- is created.
--
-- This group currently has statistics defined only for
-- Ethernet interfaces.  Each etherStatsEntry contains
-- statistics for one Ethernet interface.  The probe must
-- create one etherStats entry for each monitored Ethernet
-- interface on the device.

etherStatsTable OBJECT-TYPE
    SYNTAX SEQUENCE OF EtherStatsEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of Ethernet statistics entries."
    ::= { statistics 1 }

etherStatsEntry OBJECT-TYPE
    SYNTAX EtherStatsEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A collection of statistics kept for a particular
    Ethernet interface.  As an example, an instance of the
    etherStatsPkts object might be named etherStatsPkts.1"
    INDEX { etherStatsIndex }
    ::= { etherStatsTable 1 }

EtherStatsEntry ::= SEQUENCE {
    etherStatsIndex                    INTEGER (1..65535),
    etherStatsDataSource               OBJECT IDENTIFIER,
    etherStatsDropEvents               Counter,
    etherStatsOctets                   Counter,
    etherStatsPkts                     Counter,
    etherStatsBroadcastPkts            Counter,
    etherStatsMulticastPkts            Counter,
    etherStatsCRCAlignErrors           Counter,
    etherStatsUndersizePkts            Counter,
    etherStatsOversizePkts             Counter,
    etherStatsFragments                Counter,
    etherStatsJabbers                  Counter,
    etherStatsCollisions               Counter,
    etherStatsPkts64Octets             Counter,
    etherStatsPkts65to127Octets        Counter,
    etherStatsPkts128to255Octets       Counter,
    etherStatsPkts256to511Octets       Counter,
    etherStatsPkts512to1023Octets      Counter,
    etherStatsPkts1024to1518Octets     Counter,
    etherStatsOwner                    OwnerString,
    etherStatsStatus                   EntryStatus
}

etherStatsIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The value of this object uniquely identifies this
    etherStats entry."
    ::= { etherStatsEntry 1 }

etherStatsDataSource OBJECT-TYPE
    SYNTAX OBJECT IDENTIFIER
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "This object identifies the source of the data that
    this etherStats entry is configured to analyze.  This
    source can be any ethernet interface on this device.
    In order to identify a particular interface, this
    object shall identify the instance of the ifIndex
    object, defined in RFC 1213 and RFC 1573 [4,6], for
    the desired interface.  For example, if an entry
    were to receive data from interface #1, this object
    would be set to ifIndex.1.

    The statistics in this group reflect all packets
    on the local network segment attached to the
    identified interface.

    An agent may or may not be able to tell if
    fundamental changes to the media of the interface
    have occurred and necessitate an invalidation of
    this entry.  For example, a hot-pluggable ethernet
    card could be pulled out and replaced by a
    token-ring card.  In such a case, if the agent has
    such knowledge of the change, it is recommended that
    it invalidate this entry.

    This object may not be modified if the associated
    etherStatsStatus object is equal to valid(1)."
    ::= { etherStatsEntry 2 }

etherStatsDropEvents OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The total number of events in which packets
    were dropped by the probe due to lack of resources.
    Note that this number is not necessarily the number of
    packets dropped; it is just the number of times this
    condition has been detected."
    ::= { etherStatsEntry 3 }

etherStatsOctets OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The total number of octets of data (including
    those in bad packets) received on the
    network (excluding framing bits but including
    FCS octets).

    This object can be used as a reasonable estimate of
    ethernet utilization.  If greater precision is
    desired, the etherStatsPkts and etherStatsOctets
    objects should be sampled before and after a common
    interval.  The differences in the sampled values are
    Pkts and Octets, respectively, and the number of
    seconds in the interval is Interval.  These values
    are used to calculate the Utilization as follows:

             Pkts * (9.6 + 6.4) + (Octets * .8)
     Utilization = -------------------------------------
                 Interval * 10,000

    The result of this equation is the value Utilization
    which is the percent utilization of the ethernet
    segment on a scale of 0 to 100 percent."
    ::= { etherStatsEntry 4 }

etherStatsPkts OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The total number of packets (including bad packets,
    broadcast packets, and multicast packets) received."
    ::= { etherStatsEntry 5 }

etherStatsBroadcastPkts OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The total number of good packets received that were
    directed to the broadcast address.  Note that this
    does not include multicast packets."
    ::= { etherStatsEntry 6 }

etherStatsMulticastPkts OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The total number of good packets received that were
    directed to a multicast address.  Note that this
    number does not include packets directed to the
    broadcast address."
    ::= { etherStatsEntry 7 }

etherStatsCRCAlignErrors OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The total number of packets received that
    had a length (excluding framing bits, but
    including FCS octets) of between 64 and 1518
    octets, inclusive, but but had either a bad
    Frame Check Sequence (FCS) with an integral
    number of octets (FCS Error) or a bad FCS with
    a non-integral number of octets (Alignment Error)."
    ::= { etherStatsEntry 8 }

etherStatsUndersizePkts OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The total number of packets received that were
    less than 64 octets long (excluding framing bits,
    but including FCS octets) and were otherwise well
    formed."
    ::= { etherStatsEntry 9 }

etherStatsOversizePkts OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The total number of packets received that were
    longer than 1518 octets (excluding framing bits,
    but including FCS octets) and were otherwise
    well formed."
    ::= { etherStatsEntry 10 }

etherStatsFragments OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The total number of packets received that were less
    than 64 octets in length (excluding framing bits but
    including FCS octets) and had either a bad Frame
    Check Sequence (FCS) with an integral number of
    octets (FCS Error) or a bad FCS with a non-integral
    number of octets (Alignment Error).

    Note that it is entirely normal for
    etherStatsFragments to increment.  This is because
    it counts both runts (which are normal occurrences
    due to collisions) and noise hits."
    ::= { etherStatsEntry 11 }

etherStatsJabbers OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The total number of packets received that were
    longer than 1518 octets (excluding framing bits,
    but including FCS octets), and had either a bad
    Frame Check Sequence (FCS) with an integral number
    of octets (FCS Error) or a bad FCS with a
    non-integral number of octets (Alignment Error).

    Note that this definition of jabber is different
    than the definition in IEEE-802.3 section 8.2.1.5
    (10BASE5) and section 10.3.1.4 (10BASE2).  These
    documents define jabber as the condition where any
    packet exceeds 20 ms.  The allowed range to detect
    jabber is between 20 ms and 150 ms."
    ::= { etherStatsEntry 12 }

etherStatsCollisions OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The best estimate of the total number of collisions
    on this Ethernet segment.

    The value returned will depend on the location of
    the RMON probe. Section 8.2.1.3 (10BASE-5) and
    section 10.3.1.3 (10BASE-2) of IEEE standard 802.3
    states that a station must detect a collision, in
    the receive mode, if three or more stations are
    transmitting simultaneously.  A repeater port must
    detect a collision when two or more stations are
    transmitting simultaneously.  Thus a probe placed on
    a repeater port could record more collisions than a
    probe connected to a station on the same segment
    would.

    Probe location plays a much smaller role when
    considering 10BASE-T.  14.2.1.4 (10BASE-T) of IEEE
    standard 802.3 defines a collision as the
    simultaneous presence of signals on the DO and RD
    circuits (transmitting and receiving at the same
    time).  A 10BASE-T station can only detect
    collisions when it is transmitting.  Thus probes
    placed on a station and a repeater, should report
    the same number of collisions.

    Note also that an RMON probe inside a repeater
    should ideally report collisions between the
    repeater and one or more other hosts (transmit
    collisions as defined by IEEE 802.3k) plus receiver
    collisions observed on any coax segments to which
    the repeater is connected."
    ::= { etherStatsEntry 13 }

etherStatsPkts64Octets OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The total number of packets (including bad
    packets) received that were 64 octets in length
    (excluding framing bits but including FCS octets)."
    ::= { etherStatsEntry 14 }

etherStatsPkts65to127Octets OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The total number of packets (including bad
    packets) received that were between
    65 and 127 octets in length inclusive
    (excluding framing bits but including FCS octets)."
    ::= { etherStatsEntry 15 }

etherStatsPkts128to255Octets OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The total number of packets (including bad
    packets) received that were between
    128 and 255 octets in length inclusive
    (excluding framing bits but including FCS octets)."
    ::= { etherStatsEntry 16 }

etherStatsPkts256to511Octets OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The total number of packets (including bad
    packets) received that were between
    256 and 511 octets in length inclusive
    (excluding framing bits but including FCS octets)."
    ::= { etherStatsEntry 17 }

etherStatsPkts512to1023Octets OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The total number of packets (including bad
    packets) received that were between
    512 and 1023 octets in length inclusive
    (excluding framing bits but including FCS octets)."
    ::= { etherStatsEntry 18 }

etherStatsPkts1024to1518Octets OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The total number of packets (including bad
    packets) received that were between
    1024 and 1518 octets in length inclusive
    (excluding framing bits but including FCS octets)."
    ::= { etherStatsEntry 19 }

etherStatsOwner OBJECT-TYPE
    SYNTAX OwnerString
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The entity that configured this entry and is
    therefore using the resources assigned to it."
    ::= { etherStatsEntry 20 }

etherStatsStatus OBJECT-TYPE
    SYNTAX EntryStatus
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The status of this etherStats entry."
    ::= { etherStatsEntry 21 }


-- The History Control Group

-- Implementation of the History Control group is optional.
--
-- The history control group controls the periodic statistical
-- sampling of data from various types of networks.  The
-- historyControlTable stores configuration entries that each
-- define an interface, polling period, and other parameters.
-- Once samples are taken, their data is stored in an entry
-- in a media-specific table.  Each such entry defines one
-- sample, and is associated with the historyControlEntry that
-- caused the sample to be taken.  Each counter in the
-- etherHistoryEntry counts the same event as its
-- similarly-named counterpart in the etherStatsEntry,
-- except that each value here is a cumulative sum during a
-- sampling period.
--
-- If the probe keeps track of the time of day, it should
-- start the first sample of the history at a time such that
-- when the next hour of the day begins, a sample is
-- started at that instant.  This tends to make more
-- user-friendly reports, and enables comparison of reports
-- from different probes that have relatively accurate time
-- of day.
--
-- The probe is encouraged to add two history control entries
-- per monitored interface upon initialization that describe
-- a short term and a long term polling period.  Suggested
-- parameters are 30 seconds for the short term polling period
-- and 30 minutes for the long term period.

historyControlTable OBJECT-TYPE
    SYNTAX SEQUENCE OF HistoryControlEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of history control entries."
    ::= { history 1 }

historyControlEntry OBJECT-TYPE
    SYNTAX HistoryControlEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of parameters that set up a periodic sampling
    of statistics.  As an example, an instance of the
    historyControlInterval object might be named
    historyControlInterval.2"
    INDEX { historyControlIndex }
    ::= { historyControlTable 1 }

HistoryControlEntry ::= SEQUENCE {
    historyControlIndex             INTEGER (1..65535),
    historyControlDataSource        OBJECT IDENTIFIER,
    historyControlBucketsRequested  INTEGER (1..65535),
    historyControlBucketsGranted    INTEGER (1..65535),
    historyControlInterval          INTEGER (1..3600),
    historyControlOwner             OwnerString,
    historyControlStatus            EntryStatus
}

historyControlIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "An index that uniquely identifies an entry in the
    historyControl table.  Each such entry defines a
    set of samples at a particular interval for an
    interface on the device."
    ::= { historyControlEntry 1 }

historyControlDataSource OBJECT-TYPE
    SYNTAX OBJECT IDENTIFIER
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "This object identifies the source of the data for
    which historical data was collected and
    placed in a media-specific table on behalf of this
    historyControlEntry.  This source can be any
    interface on this device.  In order to identify
    a particular interface, this object shall identify
    the instance of the ifIndex object, defined
    in  RFC 1213 and RFC 1573 [4,6], for the desired
    interface.  For example, if an entry were to receive
    data from interface #1, this object would be set
    to ifIndex.1.

    The statistics in this group reflect all packets
    on the local network segment attached to the
    identified interface.

    An agent may or may not be able to tell if fundamental
    changes to the media of the interface have occurred
    and necessitate an invalidation of this entry.  For
    example, a hot-pluggable ethernet card could be
    pulled out and replaced by a token-ring card.  In
    such a case, if the agent has such knowledge of the
    change, it is recommended that it invalidate this
    entry.

    This object may not be modified if the associated
    historyControlStatus object is equal to valid(1)."
    ::= { historyControlEntry 2 }

historyControlBucketsRequested OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The requested number of discrete time intervals
    over which data is to be saved in the part of the
    media-specific table associated with this
    historyControlEntry.

    When this object is created or modified, the probe
    should set historyControlBucketsGranted as closely to
    this object as is possible for the particular probe
    implementation and available resources."
    DEFVAL { 50 }
    ::= { historyControlEntry 3 }

historyControlBucketsGranted OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of discrete sampling intervals
    over which data shall be saved in the part of
    the media-specific table associated with this
    historyControlEntry.

    When the associated historyControlBucketsRequested
    object is created or modified, the probe
    should set this object as closely to the requested
    value as is possible for the particular
    probe implementation and available resources.  The
    probe must not lower this value except as a result
    of a modification to the associated
    historyControlBucketsRequested object.

    There will be times when the actual number of
    buckets associated with this entry is less than
    the value of this object.  In this case, at the
    end of each sampling interval, a new bucket will
    be added to the media-specific table.

    When the number of buckets reaches the value of
    this object and a new bucket is to be added to the
    media-specific table, the oldest bucket associated
    with this historyControlEntry shall be deleted by
    the agent so that the new bucket can be added.

    When the value of this object changes to a value less
    than the current value, entries are deleted
    from the media-specific table associated with this
    historyControlEntry.  Enough of the oldest of these
    entries shall be deleted by the agent so that their
    number remains less than or equal to the new value of
    this object.

    When the value of this object changes to a value
    greater than the current value, the number of
    associated media- specific entries may be allowed to
    grow."
    ::= { historyControlEntry 4 }

historyControlInterval OBJECT-TYPE
    SYNTAX INTEGER (1..3600)
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The interval in seconds over which the data is
    sampled for each bucket in the part of the
    media-specific table associated with this
    historyControlEntry.  This interval can
    be set to any number of seconds between 1 and
    3600 (1 hour).

    Because the counters in a bucket may overflow at their
    maximum value with no indication, a prudent manager
    will take into account the possibility of overflow
    in any of the associated counters.  It is important
    to consider the minimum time in which any counter
    could overflow on a particular media type and set
    the historyControlInterval object to a value less
    than this interval.  This is typically most
    important for the 'octets' counter in any
    media-specific table.  For example, on an Ethernet
    network, the etherHistoryOctets counter could
    overflow in about one hour at the Ethernet's maximum
    utilization.

    This object may not be modified if the associated
    historyControlStatus object is equal to valid(1)."
    DEFVAL { 1800 }
    ::= { historyControlEntry 5 }

historyControlOwner OBJECT-TYPE
    SYNTAX OwnerString
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The entity that configured this entry and is
    therefore using the resources assigned to it."
    ::= { historyControlEntry 6 }

historyControlStatus OBJECT-TYPE
    SYNTAX EntryStatus
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The status of this historyControl entry.

    Each instance of the media-specific table associated
    with this historyControlEntry will be deleted by the
    agent if this historyControlEntry is not equal to
    valid(1)."
    ::= { historyControlEntry 7 }


-- The Ethernet History Group

-- Implementation of the Ethernet History group is optional.
--
-- The Ethernet History group records periodic
-- statistical samples from a network and stores them
-- for later retrieval.  Once samples are taken, their
-- data is stored in an entry in a media-specific
-- table.  Each such entry defines one sample, and is
-- associated with the historyControlEntry that caused
-- the sample to be taken.  This group defines the
-- etherHistoryTable, for Ethernet networks.
--

etherHistoryTable OBJECT-TYPE
    SYNTAX SEQUENCE OF EtherHistoryEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of Ethernet history entries."
    ::= { history 2 }

etherHistoryEntry OBJECT-TYPE
    SYNTAX EtherHistoryEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "An historical sample of Ethernet statistics on a
    particular Ethernet interface.  This sample is
    associated with the historyControlEntry which set up
    the parameters for a regular collection of these
    samples.  As an example, an instance of the
    etherHistoryPkts object might be named
    etherHistoryPkts.2.89"
    INDEX { etherHistoryIndex , etherHistorySampleIndex }
    ::= { etherHistoryTable 1 }

EtherHistoryEntry ::= SEQUENCE {
    etherHistoryIndex                 INTEGER (1..65535),
    etherHistorySampleIndex           INTEGER (1..2147483647),
    etherHistoryIntervalStart         TimeTicks,
    etherHistoryDropEvents            Counter,
    etherHistoryOctets                Counter,
    etherHistoryPkts                  Counter,
    etherHistoryBroadcastPkts         Counter,
    etherHistoryMulticastPkts         Counter,
    etherHistoryCRCAlignErrors        Counter,
    etherHistoryUndersizePkts         Counter,
    etherHistoryOversizePkts          Counter,
    etherHistoryFragments             Counter,
    etherHistoryJabbers               Counter,
    etherHistoryCollisions            Counter,
    etherHistoryUtilization           INTEGER (0..10000)
}

etherHistoryIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The history of which this entry is a part.  The
    history identified by a particular value of this
    index is the same history as identified
    by the same value of historyControlIndex."
    ::= { etherHistoryEntry 1 }

etherHistorySampleIndex OBJECT-TYPE
    SYNTAX INTEGER (1..2147483647)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "An index that uniquely identifies the particular
    sample this entry represents among all samples
    associated with the same historyControlEntry.
    This index starts at 1 and increases by one
    as each new sample is taken."
    ::= { etherHistoryEntry 2 }

etherHistoryIntervalStart OBJECT-TYPE
    SYNTAX TimeTicks
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The value of sysUpTime at the start of the interval
    over which this sample was measured.  If the probe
    keeps track of the time of day, it should start
    the first sample of the history at a time such that
    when the next hour of the day begins, a sample is
    started at that instant.  Note that following this
    rule may require the probe to delay collecting the
    first sample of the history, as each sample must be
    of the same interval.  Also note that the sample which
    is currently being collected is not accessible in this
    table until the end of its interval."
    ::= { etherHistoryEntry 3 }

etherHistoryDropEvents OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The total number of events in which packets
    were dropped by the probe due to lack of resources
    during this sampling interval.  Note that this number
    is not necessarily the number of packets dropped, it
    is just the number of times this condition has been
    detected."
    ::= { etherHistoryEntry 4 }

etherHistoryOctets OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The total number of octets of data (including
    those in bad packets) received on the
    network (excluding framing bits but including
    FCS octets)."
    ::= { etherHistoryEntry 5 }

etherHistoryPkts OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of packets (including bad packets)
    received during this sampling interval."
    ::= { etherHistoryEntry 6 }

etherHistoryBroadcastPkts OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of good packets received during this
    sampling interval that were directed to the
    broadcast address."
    ::= { etherHistoryEntry 7 }

etherHistoryMulticastPkts OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of good packets received during this
    sampling interval that were directed to a
    multicast address.  Note that this number does not
    include packets addressed to the broadcast address."
    ::= { etherHistoryEntry 8 }

etherHistoryCRCAlignErrors OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of packets received during this sampling
    interval that had a length (excluding framing bits
    but including FCS octets) between 64 and 1518
    octets, inclusive, but had either a bad Frame Check
    Sequence (FCS) with an integral number of octets
    (FCS Error) or a bad FCS with a non-integral number
    of octets (Alignment Error)."
    ::= { etherHistoryEntry 9 }

etherHistoryUndersizePkts OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of packets received during this
    sampling interval that were less than 64 octets
    long (excluding framing bits but including FCS
    octets) and were otherwise well formed."
    ::= { etherHistoryEntry 10 }

etherHistoryOversizePkts OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of packets received during this
    sampling interval that were longer than 1518
    octets (excluding framing bits but including
    FCS octets) but were otherwise well formed."
    ::= { etherHistoryEntry 11 }

etherHistoryFragments OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The total number of packets received during this
    sampling interval that were less than 64 octets in
    length (excluding framing bits but including FCS
    octets) had either a bad Frame Check Sequence (FCS)
    with an integral number of octets (FCS Error) or a bad
    FCS with a non-integral number of octets (Alignment
    Error).

    Note that it is entirely normal for
    etherHistoryFragments to increment.  This is because
    it counts both runts (which are normal occurrences
    due to collisions) and noise hits."
    ::= { etherHistoryEntry 12 }

etherHistoryJabbers OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of packets received during this
    sampling interval that were longer than 1518 octets
    (excluding framing bits but including FCS octets),
    and  had either a bad Frame Check Sequence (FCS)
    with an integral number of octets (FCS Error) or
    a bad FCS with a non-integral number of octets
    (Alignment Error).

    Note that this definition of jabber is different
    than the definition in IEEE-802.3 section 8.2.1.5
    (10BASE5) and section 10.3.1.4 (10BASE2).  These
    documents define jabber as the condition where any
    packet exceeds 20 ms.  The allowed range to detect
    jabber is between 20 ms and 150 ms."
    ::= { etherHistoryEntry 13 }

etherHistoryCollisions OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The best estimate of the total number of collisions
    on this Ethernet segment during this sampling
    interval.

    The value returned will depend on the location of
    the RMON probe. Section 8.2.1.3 (10BASE-5) and
    section 10.3.1.3 (10BASE-2) of IEEE standard 802.3
    states that a station must detect a collision, in
    the receive mode, if three or more stations are
    transmitting simultaneously.  A repeater port must
    detect a collision when two or more stations are
    transmitting simultaneously.  Thus a probe placed on
    a repeater port could record more collisions than a
    probe connected to a station on the same segment
    would.

    Probe location plays a much smaller role when
    considering 10BASE-T.  14.2.1.4 (10BASE-T) of IEEE
    standard 802.3 defines a collision as the
    simultaneous presence of signals on the DO and RD
    circuits (transmitting and receiving at the same
    time).  A 10BASE-T station can only detect
    collisions when it is transmitting.  Thus probes
    placed on a station and a repeater, should report
    the same number of collisions.

    Note also that an RMON probe inside a repeater
    should ideally report collisions between the
    repeater and one or more other hosts (transmit
    collisions as defined by IEEE 802.3k) plus receiver
    collisions observed on any coax segments to which
    the repeater is connected."
    ::= { etherHistoryEntry 14 }

etherHistoryUtilization OBJECT-TYPE
    SYNTAX INTEGER (0..10000)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The best estimate of the mean physical layer
    network utilization on this interface during this
    sampling interval, in hundredths of a percent."
    ::= { etherHistoryEntry 15 }


-- The Alarm Group

-- Implementation of the Alarm group is optional.
--
-- The Alarm Group requires the implementation of the Event
-- group.
--
-- The Alarm group periodically takes
-- statistical samples from variables in the probe and
-- compares them to thresholds that have been
-- configured.  The alarm table stores configuration
-- entries that each define a variable, polling period,
-- and threshold parameters.  If a sample is found to
-- cross the threshold values, an event is generated.
-- Only variables that resolve to an ASN.1 primitive
-- type of INTEGER (INTEGER, Counter, Gauge, or
-- TimeTicks) may be monitored in this way.
--
-- This function has a hysteresis mechanism to limit
-- the generation of events.  This mechanism generates
-- one event as a threshold is crossed in the
-- appropriate direction.  No more events are generated
-- for that threshold until the opposite threshold is
-- crossed.
--
-- In the case of a sampling a deltaValue, a probe may
-- implement this mechanism with more precision if it
-- takes a delta sample twice per period, each time
-- comparing the sum of the latest two samples to the
-- threshold.  This allows the detection of threshold
-- crossings that span the sampling boundary.  Note
-- that this does not require any special configuration
-- of the threshold value.  It is suggested that probes
-- implement this more precise algorithm.

alarmTable OBJECT-TYPE
    SYNTAX SEQUENCE OF AlarmEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of alarm entries."
    ::= { alarm 1 }

alarmEntry OBJECT-TYPE
    SYNTAX AlarmEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of parameters that set up a periodic checking
    for alarm conditions.  For example, an instance of the
    alarmValue object might be named alarmValue.8"
    INDEX { alarmIndex }
    ::= { alarmTable 1 }

AlarmEntry ::= SEQUENCE {
    alarmIndex                    INTEGER (1..65535),
    alarmInterval                 INTEGER,
    alarmVariable                 OBJECT IDENTIFIER,
    alarmSampleType               INTEGER,
    alarmValue                    INTEGER,
    alarmStartupAlarm             INTEGER,
    alarmRisingThreshold          INTEGER,
    alarmFallingThreshold         INTEGER,
    alarmRisingEventIndex         INTEGER (0..65535),
    alarmFallingEventIndex        INTEGER (0..65535),
    alarmOwner                    OwnerString,
    alarmStatus                   EntryStatus
}

alarmIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "An index that uniquely identifies an entry in the
    alarm table.  Each such entry defines a
    diagnostic sample at a particular interval
    for an object on the device."
    ::= { alarmEntry 1 }

alarmInterval OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The interval in seconds over which the data is
    sampled and compared with the rising and falling
    thresholds.  When setting this variable, care
    should be taken in the case of deltaValue
    sampling - the interval should be set short enough
    that the sampled variable is very unlikely to
    increase or decrease by more than 2^31 - 1 during
    a single sampling interval.

    This object may not be modified if the associated
    alarmStatus object is equal to valid(1)."
    ::= { alarmEntry 2 }

alarmVariable OBJECT-TYPE
    SYNTAX OBJECT IDENTIFIER
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The object identifier of the particular variable to
    be sampled.  Only variables that resolve to an ASN.1
    primitive type of INTEGER (INTEGER, Counter, Gauge,
    or TimeTicks) may be sampled.

    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 alarm
    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, a
    badValue error must be returned.  If at any time the
    variable name of an established alarmEntry is no
    longer available in the selected MIB view, the probe
    must change the status of this alarmEntry to
    invalid(4).

    This object may not be modified if the associated
    alarmStatus object is equal to valid(1)."
    ::= { alarmEntry 3 }

alarmSampleType OBJECT-TYPE
    SYNTAX INTEGER {
    absoluteValue(1),
    deltaValue(2)
    }
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The method of sampling the selected variable and
    calculating the value to be compared against the
    thresholds.  If the value of this object is
    absoluteValue(1), the value of the selected variable
    will be compared directly with the thresholds at the
    end of the sampling interval.  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 compared with
    the thresholds.

    This object may not be modified if the associated
    alarmStatus object is equal to valid(1)."
    ::= { alarmEntry 4 }

alarmValue OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The value of the statistic during the last sampling
    period.  For example, if the sample type is
    deltaValue, this value will be the difference
    between the samples at the beginning and end of the
    period.  If the sample type is absoluteValue, this
    value will be the sampled value at the end of the
    period.

    This is the value that is compared with the rising and
    falling thresholds.

    The value during the current sampling period is not
    made available until the period is completed and will
    remain available until the next period completes."
    ::= { alarmEntry 5 }

alarmStartupAlarm OBJECT-TYPE
    SYNTAX INTEGER {
    risingAlarm(1),
    fallingAlarm(2),
    risingOrFallingAlarm(3)
    }
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The alarm that may be sent when this entry is first
    set to valid.  If the first sample after this entry
    becomes valid is greater than or equal to the
    risingThreshold and alarmStartupAlarm is equal to
    risingAlarm(1) or risingOrFallingAlarm(3), then a
    single rising alarm will be generated.  If the first
    sample after this entry becomes valid is less than
    or equal to the fallingThreshold and
    alarmStartupAlarm is equal to fallingAlarm(2) or
    risingOrFallingAlarm(3), then a single falling alarm
    will be generated.

    This object may not be modified if the associated
    alarmStatus object is equal to valid(1)."
    ::= { alarmEntry 6 }

alarmRisingThreshold OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "A threshold for the sampled statistic.  When the
    current sampled value is greater than or equal to
    this threshold, and the value at the last sampling
    interval was less than this threshold, a single
    event will be generated.  A single event will also
    be generated if the first sample after this entry
    becomes valid is greater than or equal to this
    threshold and the associated alarmStartupAlarm is
    equal to risingAlarm(1) or risingOrFallingAlarm(3).

    After a rising event is generated, another such event
    will not be generated until the sampled value
    falls below this threshold and reaches the
    alarmFallingThreshold.

    This object may not be modified if the associated
    alarmStatus object is equal to valid(1)."
    ::= { alarmEntry 7 }

alarmFallingThreshold OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "A threshold for the sampled statistic.  When the
    current sampled value is less than or equal to this
    threshold, and the value at the last sampling
    interval was greater than this threshold, a single
    event will be generated.  A single event will also
    be generated if the first sample after this entry
    becomes valid is less than or equal to this
    threshold and the associated alarmStartupAlarm is
    equal to fallingAlarm(2) or risingOrFallingAlarm(3).

    After a falling event is generated, another such event
    will not be generated until the sampled value
    rises above this threshold and reaches the
    alarmRisingThreshold.

    This object may not be modified if the associated
    alarmStatus object is equal to valid(1)."
    ::= { alarmEntry 8 }

alarmRisingEventIndex OBJECT-TYPE
    SYNTAX INTEGER (0..65535)
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The index of the eventEntry that is
    used when a rising threshold is crossed.  The
    eventEntry identified by a particular value of
    this index is the same as identified by the same value
    of the eventIndex object.  If there is no
    corresponding entry in the eventTable, then
    no association exists.  In particular, if this value
    is zero, no associated event will be generated, as
    zero is not a valid event index.

    This object may not be modified if the associated
    alarmStatus object is equal to valid(1)."
    ::= { alarmEntry 9 }

alarmFallingEventIndex OBJECT-TYPE
    SYNTAX INTEGER (0..65535)
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The index of the eventEntry that is
    used when a falling threshold is crossed.  The
    eventEntry identified by a particular value of
    this index is the same as identified by the same value
    of the eventIndex object.  If there is no
    corresponding entry in the eventTable, then
    no association exists.  In particular, if this value
    is zero, no associated event will be generated, as
    zero is not a valid event index.

    This object may not be modified if the associated
    alarmStatus object is equal to valid(1)."
    ::= { alarmEntry 10 }

alarmOwner OBJECT-TYPE
    SYNTAX OwnerString
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The entity that configured this entry and is
    therefore using the resources assigned to it."
    ::= { alarmEntry 11 }

alarmStatus OBJECT-TYPE
    SYNTAX EntryStatus
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The status of this alarm entry."
    ::= { alarmEntry 12 }


-- The Host Group

-- Implementation of the Host group is optional.
--
-- The host group discovers new hosts on the network by
-- keeping a list of source and destination MAC Addresses seen
-- in good packets.  For each of these addresses, the host
-- group keeps a set of statistics.  The hostControlTable
-- controls which interfaces this function is performed on,
-- and contains some information about the process.  On
-- behalf of each hostControlEntry, data is collected on an
-- interface and placed in both the hostTable and the
-- hostTimeTable.  If the monitoring device finds itself
-- short of resources, it may delete entries as needed.  It
-- is suggested that the device delete the least recently
-- used entries first.

-- The hostTable contains entries for each address
-- discovered on a particular interface.  Each entry
-- contains statistical data about that host.  This table is
-- indexed by the MAC address of the host, through which a
-- random access may be achieved.

-- The hostTimeTable contains data in the same format as the
-- hostTable, and must contain the same set of hosts, but is
-- indexed using hostTimeCreationOrder rather than
-- hostAddress.
-- The hostTimeCreationOrder is an integer which reflects
-- the relative order in which a particular entry was
-- discovered and thus inserted into the table.  As this
-- order, and thus the index, is among those entries
-- currently in the table, the index for a particular entry
-- may change if an (earlier) entry is deleted.  Thus the
-- association between hostTimeCreationOrder and
-- hostTimeEntry may be broken at any time.

-- The hostTimeTable has two important uses.  The first is the
-- fast download of this potentially large table.  Because the
-- index of this table runs from 1 to the size of the table,
-- inclusive, its values are predictable.  This allows very
-- efficient packing of variables into SNMP PDU's and allows
-- a table transfer to have multiple packets outstanding.
-- These benefits increase transfer rates tremendously.

-- The second use of the hostTimeTable is the efficient
-- discovery by the management station of new entries added
-- to the table. After the management station has downloaded
-- the entire table, it knows that new entries will be added
-- immediately after the end of the current table.  It can
-- thus detect new entries there and retrieve them easily.

-- Because the association between hostTimeCreationOrder and
-- hostTimeEntry may be broken at any time, the management
-- station must monitor the related hostControlLastDeleteTime
-- object.  When the management station thus detects a
-- deletion, it must assume that any such associations have
--- been broken, and invalidate any it has stored locally.
-- This includes restarting any download of the
-- hostTimeTable that may have been in progress, as well as
-- rediscovering the end of the hostTimeTable so that it may
-- detect new entries.  If the management station does not
-- detect the broken association, it may continue to refer
-- to a particular host by its creationOrder while
-- unwittingly retrieving the data associated with another
-- host entirely.  If this happens while downloading the
-- host table, the management station may fail to download
-- all of the entries in the table.

hostControlTable OBJECT-TYPE
    SYNTAX SEQUENCE OF HostControlEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of host table control entries."
    ::= { hosts 1 }

hostControlEntry OBJECT-TYPE
    SYNTAX HostControlEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of parameters that set up the discovery of
    hosts on a particular interface and the collection
    of statistics about these hosts.  For example, an
    instance of the hostControlTableSize object might be
    named hostControlTableSize.1"
    INDEX { hostControlIndex }
    ::= { hostControlTable 1 }

HostControlEntry ::= SEQUENCE {
    hostControlIndex            INTEGER (1..65535),
    hostControlDataSource       OBJECT IDENTIFIER,
    hostControlTableSize        INTEGER,
    hostControlLastDeleteTime   TimeTicks,
    hostControlOwner            OwnerString,
    hostControlStatus           EntryStatus
}

hostControlIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "An index that uniquely identifies an entry in the
    hostControl table.  Each such entry defines
    a function that discovers hosts on a particular
    interface and places statistics about them in the
    hostTable and the hostTimeTable on behalf of this
    hostControlEntry."
    ::= { hostControlEntry 1 }

hostControlDataSource OBJECT-TYPE
    SYNTAX OBJECT IDENTIFIER
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "This object identifies the source of the data for
    this instance of the host function.  This source
    can be any interface on this device.  In order
    to identify a particular interface, this object shall
    identify the instance of the ifIndex object, defined
    in RFC 1213 and RFC 1573 [4,6], for the desired
    interface. For example, if an entry were to receive
    data from interface #1, this object would be set to
    ifIndex.1.

    The statistics in this group reflect all packets
    on the local network segment attached to the
    identified interface.

    An agent may or may not be able to tell if
    fundamental changes to the media of the interface
    have occurred and necessitate an invalidation of
    this entry.  For example, a hot-pluggable ethernet
    card could be pulled out and replaced by a
    token-ring card.  In such a case, if the agent has
    such knowledge of the change, it is recommended that
    it invalidate this entry.

    This object may not be modified if the associated
    hostControlStatus object is equal to valid(1)."
    ::= { hostControlEntry 2 }

hostControlTableSize OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of hostEntries in the hostTable and the
    hostTimeTable associated with this hostControlEntry."
    ::= { hostControlEntry 3 }

hostControlLastDeleteTime OBJECT-TYPE
    SYNTAX TimeTicks
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The value of sysUpTime when the last entry
    was deleted from the portion of the hostTable
    associated with this hostControlEntry.  If no
    deletions have occurred, this value shall be zero."
    ::= { hostControlEntry 4 }

hostControlOwner OBJECT-TYPE
    SYNTAX OwnerString
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The entity that configured this entry and is
    therefore using the resources assigned to it."
    ::= { hostControlEntry 5 }

hostControlStatus OBJECT-TYPE
    SYNTAX EntryStatus
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The status of this hostControl entry.

    If this object is not equal to valid(1), all
    associated entries in the hostTable, hostTimeTable,
    and the hostTopNTable shall be deleted by the
    agent."
    ::= { hostControlEntry 6 }

hostTable OBJECT-TYPE
    SYNTAX SEQUENCE OF HostEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of host entries."
    ::= { hosts 2 }

hostEntry OBJECT-TYPE
    SYNTAX HostEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A collection of statistics for a particular host
    that has been discovered on an interface of this
    device.  For example, an instance of the
    hostOutBroadcastPkts object might be named
    hostOutBroadcastPkts.1.6.8.0.32.27.3.176"
    INDEX { hostIndex, hostAddress }
    ::= { hostTable 1 }

HostEntry ::= SEQUENCE {
    hostAddress             OCTET STRING,
    hostCreationOrder       INTEGER (1..65535),
    hostIndex               INTEGER (1..65535),
    hostInPkts              Counter,
    hostOutPkts             Counter,
    hostInOctets            Counter,
    hostOutOctets           Counter,
    hostOutErrors           Counter,
    hostOutBroadcastPkts    Counter,
    hostOutMulticastPkts    Counter
}

hostAddress OBJECT-TYPE
    SYNTAX OCTET STRING
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The physical address of this host."
    ::= { hostEntry 1 }

hostCreationOrder OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "An index that defines the relative ordering of
    the creation time of hosts captured for a
    particular hostControlEntry.  This index shall
    be between 1 and N, where N is the value of
    the associated hostControlTableSize.  The ordering
    of the indexes is based on the order of each entry's
    insertion into the table, in which entries added
    earlier have a lower index value than entries added
    later.

    It is important to note that the order for a
    particular entry may change as an (earlier) entry
    is deleted from the table.  Because this order may
    change, management stations should make use of the
    hostControlLastDeleteTime variable in the
    hostControlEntry associated with the relevant
    portion of the hostTable.  By observing
    this variable, the management station may detect
    the circumstances where a previous association
    between a value of hostCreationOrder
    and a hostEntry may no longer hold."
    ::= { hostEntry 2 }

hostIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The set of collected host statistics of which
    this entry is a part.  The set of hosts
    identified by a particular value of this
    index is associated with the hostControlEntry
    as identified by the same value of hostControlIndex."
    ::= { hostEntry 3 }

hostInPkts OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of good packets transmitted to this
    address since it was added to the hostTable."
    ::= { hostEntry 4 }

hostOutPkts OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of packets, including bad packets,
    transmitted by this address since it was added
    to the hostTable."
    ::= { hostEntry 5 }

hostInOctets OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of octets transmitted to this address
    since it was added to the hostTable (excluding
    framing bits but including FCS octets), except for
    those octets in bad packets."
    ::= { hostEntry 6 }

hostOutOctets OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of octets transmitted by this address
    since it was added to the hostTable (excluding
    framing bits but including FCS octets), including
    those octets in bad packets."
    ::= { hostEntry 7 }

hostOutErrors OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of bad packets transmitted by this address
    since this host was added to the hostTable."
    ::= { hostEntry 8 }

hostOutBroadcastPkts OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of good packets transmitted by this
    address that were directed to the broadcast address
    since this host was added to the hostTable."
    ::= { hostEntry 9 }

hostOutMulticastPkts OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of good packets transmitted by this
    address that were directed to a multicast address
    since this host was added to the hostTable.
    Note that this number does not include packets
    directed to the broadcast address."
    ::= { hostEntry 10 }

-- host Time Table

hostTimeTable OBJECT-TYPE
    SYNTAX SEQUENCE OF HostTimeEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of time-ordered host table entries."
    ::= { hosts 3 }

hostTimeEntry OBJECT-TYPE
    SYNTAX HostTimeEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A collection of statistics for a particular host
    that has been discovered on an interface of this
    device.  This collection includes the relative
    ordering of the creation time of this object.  For
    example, an instance of the hostTimeOutBroadcastPkts
    object might be named
    hostTimeOutBroadcastPkts.1.687"
    INDEX { hostTimeIndex, hostTimeCreationOrder }
    ::= { hostTimeTable 1 }

HostTimeEntry ::= SEQUENCE {
    hostTimeAddress              OCTET STRING,
    hostTimeCreationOrder        INTEGER (1..65535),
    hostTimeIndex                INTEGER (1..65535),
    hostTimeInPkts               Counter,
    hostTimeOutPkts              Counter,
    hostTimeInOctets             Counter,
    hostTimeOutOctets            Counter,
    hostTimeOutErrors            Counter,
    hostTimeOutBroadcastPkts     Counter,
    hostTimeOutMulticastPkts     Counter
}

hostTimeAddress OBJECT-TYPE
    SYNTAX OCTET STRING
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The physical address of this host."
    ::= { hostTimeEntry 1 }

hostTimeCreationOrder OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "An index that uniquely identifies an entry in
    the hostTime table among those entries associated
    with the same hostControlEntry.  This index shall
    be between 1 and N, where N is the value of
    the associated hostControlTableSize.  The ordering
    of the indexes is based on the order of each entry's
    insertion into the table, in which entries added
    earlier have a lower index value than entries added
    later. Thus the management station has the ability to
    learn of new entries added to this table without
    downloading the entire table.

    It is important to note that the index for a
    particular entry may change as an (earlier) entry
    is deleted from the table.  Because this order may
    change, management stations should make use of the
    hostControlLastDeleteTime variable in the
    hostControlEntry associated with the relevant
    portion of the hostTimeTable.  By observing
    this variable, the management station may detect
    the circumstances where a download of the table
    may have missed entries, and where a previous
    association between a value of hostTimeCreationOrder
    and a hostTimeEntry may no longer hold."
    ::= { hostTimeEntry 2 }

hostTimeIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The set of collected host statistics of which
    this entry is a part.  The set of hosts
    identified by a particular value of this
    index is associated with the hostControlEntry
    as identified by the same value of hostControlIndex."
    ::= { hostTimeEntry 3 }

hostTimeInPkts OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of good packets transmitted to this
    address since it was added to the hostTimeTable."
    ::= { hostTimeEntry 4 }

hostTimeOutPkts OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of god packets transmitted by this
    address since it was added to the hostTimeTable."
    ::= { hostTimeEntry 5 }

hostTimeInOctets OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of octets transmitted to this address
    since it was added to the hostTimeTable (excluding
    framing bits but including FCS octets), except for
    those octets in bad packets."
    ::= { hostTimeEntry 6 }

hostTimeOutOctets OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of octets transmitted by this address
    since it was added to the hostTimeTable (excluding
    framing bits but including FCS octets), including
    those octets in bad packets."
    ::= { hostTimeEntry 7 }

hostTimeOutErrors OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of bad packets transmitted by this address
    since this host was added to the hostTimeTable."
    ::= { hostTimeEntry 8 }

hostTimeOutBroadcastPkts OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of good packets transmitted by this
    address that were directed to the broadcast address
    since this host was added to the hostTimeTable."
    ::= { hostTimeEntry 9 }

hostTimeOutMulticastPkts OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of good packets transmitted by this
    address that were directed to a multicast address
    since this host was added to the hostTimeTable.
    Note that this number does not include packets
    directed to the broadcast address."
    ::= { hostTimeEntry 10 }


-- The Host Top "N" Group

-- Implementation of the Host Top N group is optional.
--
-- The Host Top N group requires the implementation of the
-- host group.
--
-- The Host Top N group is used to prepare reports that
-- describe the hosts that top a list ordered by one of
-- their statistics.
-- The available statistics are samples of one of their
-- base statistics, over an interval specified by the
-- management station.  Thus, these statistics are rate
-- based.  The management station also selects how many such
-- hosts are reported.

-- The hostTopNControlTable is used to initiate the
-- generation of such a report.  The management station
-- may select the parameters of such a report, such as
-- which interface, which statistic, how many hosts,
-- and the start and stop times of the sampling.  When
-- the report is prepared, entries are created in the
-- hostTopNTable associated with the relevant
-- hostTopNControlEntry.  These entries are static for
-- each report after it has been prepared.

hostTopNControlTable OBJECT-TYPE
    SYNTAX SEQUENCE OF HostTopNControlEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of top N host control entries."
    ::= { hostTopN 1 }

hostTopNControlEntry OBJECT-TYPE
    SYNTAX HostTopNControlEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A set of parameters that control the creation of a
    report of the top N hosts according to several
    metrics.  For example, an instance of the
    hostTopNDuration object might be named
    hostTopNDuration.3"
    INDEX { hostTopNControlIndex }
    ::= { hostTopNControlTable 1 }

HostTopNControlEntry ::= SEQUENCE {
    hostTopNControlIndex    INTEGER (1..65535),
    hostTopNHostIndex       INTEGER (1..65535),
    hostTopNRateBase        INTEGER,
    hostTopNTimeRemaining   INTEGER,
    hostTopNDuration        INTEGER,
    hostTopNRequestedSize   INTEGER,
    hostTopNGrantedSize     INTEGER,
    hostTopNStartTime       TimeTicks,
    hostTopNOwner           OwnerString,
    hostTopNStatus          EntryStatus
}

hostTopNControlIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "An index that uniquely identifies an entry
    in the hostTopNControl table.  Each such
    entry defines one top N report prepared for
    one interface."
    ::= { hostTopNControlEntry 1 }

hostTopNHostIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The host table for which a top N report will be
    prepared on behalf of this entry.  The host table
    identified by a particular value of this index is
    associated with the same host table as identified by
    the same value of hostIndex.

    This object may not be modified if the associated
    hostTopNStatus object is equal to valid(1)."
    ::= { hostTopNControlEntry 2 }

hostTopNRateBase OBJECT-TYPE
    SYNTAX INTEGER {
        hostTopNInPkts(1),
        hostTopNOutPkts(2),
        hostTopNInOctets(3),
        hostTopNOutOctets(4),
        hostTopNOutErrors(5),
        hostTopNOutBroadcastPkts(6),
        hostTopNOutMulticastPkts(7)
    }
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The variable for each host that the hostTopNRate
    variable is based upon.

    This object may not be modified if the associated
    hostTopNStatus object is equal to valid(1)."
    ::= { hostTopNControlEntry 3 }

hostTopNTimeRemaining OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-write
    STATUS mandatory
    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
    hostTopNDuration object.

    When this object is set to a non-zero value, any
    associated hostTopNEntries shall be made
    inaccessible by the monitor.  While the value of
    this object is non-zero, it decrements by one per
    second until it reaches zero.  During this time, all
    associated hostTopNEntries shall remain
    inaccessible.  At the time that this object
    decrements to zero, the report is made accessible in
    the hostTopNTable.  Thus, the hostTopN table needs
    to be created only at the end of the collection
    interval."
    DEFVAL { 0 }
    ::= { hostTopNControlEntry 4 }

hostTopNDuration OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-only
    STATUS mandatory
    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 hostTopNTimeRemaining object is
    set, this object shall be set by the probe to the
    same value and shall not be modified until the next
    time the hostTopNTimeRemaining is set.

    This value shall be zero if no reports have been
    requested for this hostTopNControlEntry."
    DEFVAL { 0 }
    ::= { hostTopNControlEntry 5 }

hostTopNRequestedSize OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The maximum number of hosts requested for the top N
    table.

    When this object is created or modified, the probe
    should set hostTopNGrantedSize as closely to this
    object as is possible for the particular probe
    implementation and available resources."
    DEFVAL { 10 }
    ::= { hostTopNControlEntry 6 }

hostTopNGrantedSize OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The maximum number of hosts in the top N table.

    When the associated hostTopNRequestedSize object is
    created or modified, the probe should set this
    object as closely to the requested value as is
    possible for the particular implementation and
    available resources. The probe must not lower this
    value except as a result of a set to the associated
    hostTopNRequestedSize object.
    Hosts with the highest value of hostTopNRate shall be
    placed in this table in decreasing order of this rate
    until there is no more room or until there are no more
    hosts."
    ::= { hostTopNControlEntry 7 }

hostTopNStartTime OBJECT-TYPE
    SYNTAX TimeTicks
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The value of sysUpTime when this top N report was
    last started.  In other words, this is the time that
    the associated hostTopNTimeRemaining object was
    modified to start the requested report."
    ::= { hostTopNControlEntry 8 }

hostTopNOwner OBJECT-TYPE
    SYNTAX OwnerString
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The entity that configured this entry and is
    therefore using the resources assigned to it."
    ::= { hostTopNControlEntry 9 }

hostTopNStatus OBJECT-TYPE
    SYNTAX EntryStatus
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The status of this hostTopNControl entry.

    If this object is not equal to valid(1), all
    associated hostTopNEntries shall be deleted by the
    agent."
    ::= { hostTopNControlEntry 10 }

hostTopNTable OBJECT-TYPE
    SYNTAX SEQUENCE OF HostTopNEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of top N host entries."
    ::= { hostTopN 2 }

hostTopNEntry OBJECT-TYPE
    SYNTAX HostTopNEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A set of statistics for a host that is part of a
    top N report.  For example, an instance of the
    hostTopNRate object might be named
    hostTopNRate.3.10"
    INDEX { hostTopNReport, hostTopNIndex }
    ::= { hostTopNTable 1 }

HostTopNEntry ::= SEQUENCE {
    hostTopNReport                INTEGER (1..65535),
    hostTopNIndex                 INTEGER (1..65535),
    hostTopNAddress               OCTET STRING,
    hostTopNRate                  INTEGER
}

hostTopNReport OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "This object identifies the top N report of which
    this entry is a part.  The set of hosts
    identified by a particular value of this
    object is part of the same report as identified
    by the same value of the hostTopNControlIndex object."
    ::= { hostTopNEntry 1 }

hostTopNIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "An index that uniquely identifies an entry in
    the hostTopN table among those in the same report.
    This index is between 1 and N, where N is the
    number of entries in this table.  Increasing values
    of hostTopNIndex shall be assigned to entries with
    decreasing values of hostTopNRate until index N
    is assigned to the entry with the lowest value of
    hostTopNRate or there are no more hostTopNEntries."
    ::= { hostTopNEntry 2 }

hostTopNAddress OBJECT-TYPE
    SYNTAX OCTET STRING
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The physical address of this host."
    ::= { hostTopNEntry 3 }

hostTopNRate OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The amount of change in the selected variable
    during this sampling interval.  The selected
    variable is this host's instance of the object
    selected by hostTopNRateBase."
    ::= { hostTopNEntry 4 }


-- The Matrix Group

-- Implementation of the Matrix group is optional.
--
-- The Matrix group consists of the matrixControlTable,
-- matrixSDTable and the matrixDSTable.  These tables
-- store statistics for a particular conversation
-- between two addresses.  As the device detects a new
-- conversation, including those to a non-unicast
-- address, it creates a new entry in both of the
-- matrix tables.  It must only create new entries
-- based on information received in good packets.  If
-- the monitoring device finds itself short of
-- resources, it may delete entries as needed.  It is
-- suggested that the device delete the least recently
-- used entries first.

matrixControlTable OBJECT-TYPE
    SYNTAX SEQUENCE OF MatrixControlEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of information entries for the
    traffic matrix on each interface."
    ::= { matrix 1 }

matrixControlEntry OBJECT-TYPE
    SYNTAX MatrixControlEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "Information about a traffic matrix on a particular
    interface.  For example, an instance of the
    matrixControlLastDeleteTime object might be named
    matrixControlLastDeleteTime.1"
    INDEX { matrixControlIndex }
    ::= { matrixControlTable 1 }

MatrixControlEntry ::= SEQUENCE {
    matrixControlIndex           INTEGER (1..65535),
    matrixControlDataSource      OBJECT IDENTIFIER,
    matrixControlTableSize       INTEGER,
    matrixControlLastDeleteTime  TimeTicks,
    matrixControlOwner           OwnerString,
    matrixControlStatus          EntryStatus
}

matrixControlIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "An index that uniquely identifies an entry in the
    matrixControl table.  Each such entry defines
    a function that discovers conversations on a
    particular interface and places statistics about
    them in the matrixSDTable and the matrixDSTable on
    behalf of this matrixControlEntry."
    ::= { matrixControlEntry 1 }

matrixControlDataSource OBJECT-TYPE
    SYNTAX OBJECT IDENTIFIER
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "This object identifies the source of
    the data from which this entry creates a traffic
    matrix. This source can be any interface on this
    device.  In order to identify a particular
    interface, this object shall identify the instance
    of the ifIndex object, defined in RFC 1213 and RFC
    1573 [4,6], for the desired interface.  For example,
    if an entry were to receive data from interface #1,
    this object would be set to ifIndex.1.

    The statistics in this group reflect all packets
    on the local network segment attached to the
    identified interface.

    An agent may or may not be able to tell if
    fundamental changes to the media of the interface
    have occurred and necessitate an invalidation of
    this entry.  For example, a hot-pluggable ethernet
    card could be pulled out and replaced by a
    token-ring card.  In such a case, if the agent has
    such knowledge of the change, it is recommended that
    it invalidate this entry.

    This object may not be modified if the associated
    matrixControlStatus object is equal to valid(1)."
    ::= { matrixControlEntry 2 }

matrixControlTableSize OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of matrixSDEntries in the matrixSDTable
    for this interface.  This must also be the value of
    the number of entries in the matrixDSTable for this
    interface."
    ::= { matrixControlEntry 3 }

matrixControlLastDeleteTime OBJECT-TYPE
    SYNTAX TimeTicks
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The value of sysUpTime when the last entry
    was deleted from the portion of the matrixSDTable
    or matrixDSTable associated with this
    matrixControlEntry. If no deletions have occurred,
    this value shall be zero."
    ::= { matrixControlEntry 4 }

matrixControlOwner OBJECT-TYPE
    SYNTAX OwnerString
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The entity that configured this entry and is
    therefore using the resources assigned to it."
    ::= { matrixControlEntry 5 }

matrixControlStatus OBJECT-TYPE
    SYNTAX EntryStatus
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The status of this matrixControl entry.

    If this object is not equal to valid(1), all
    associated entries in the matrixSDTable and the
    matrixDSTable shall be deleted by the agent."
    ::= { matrixControlEntry 6 }

matrixSDTable OBJECT-TYPE
    SYNTAX SEQUENCE OF MatrixSDEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of traffic matrix entries indexed by
    source and destination MAC address."
    ::= { matrix 2 }

matrixSDEntry OBJECT-TYPE
    SYNTAX MatrixSDEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A collection of statistics for communications between
    two addresses on a particular interface.  For example,
    an instance of the matrixSDPkts object might be named
    matrixSDPkts.1.6.8.0.32.27.3.176.6.8.0.32.10.8.113"
    INDEX { matrixSDIndex,
        matrixSDSourceAddress, matrixSDDestAddress }
    ::= { matrixSDTable 1 }

MatrixSDEntry ::= SEQUENCE {
    matrixSDSourceAddress       OCTET STRING,
    matrixSDDestAddress         OCTET STRING,
    matrixSDIndex               INTEGER (1..65535),
    matrixSDPkts                Counter,
    matrixSDOctets              Counter,
    matrixSDErrors              Counter
}

matrixSDSourceAddress OBJECT-TYPE
    SYNTAX OCTET STRING
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The source physical address."
    ::= { matrixSDEntry 1 }

matrixSDDestAddress OBJECT-TYPE
    SYNTAX OCTET STRING
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The destination physical address."
    ::= { matrixSDEntry 2 }

matrixSDIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The set of collected matrix statistics of which
    this entry is a part.  The set of matrix statistics
    identified by a particular value of this index
    is associated with the same matrixControlEntry
    as identified by the same value of
    matrixControlIndex."
    ::= { matrixSDEntry 3 }

matrixSDPkts OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of packets transmitted from the source
    address to the destination address (this number
    includes bad packets)."
    ::= { matrixSDEntry 4 }

matrixSDOctets OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of octets (excluding framing bits but
    including FCS octets) contained in all packets
    transmitted from the source address to the
    destination address."
    ::= { matrixSDEntry 5 }

matrixSDErrors OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of bad packets transmitted from
    the source address to the destination address."
    ::= { matrixSDEntry 6 }


-- Traffic matrix tables from destination to source

matrixDSTable OBJECT-TYPE
    SYNTAX SEQUENCE OF MatrixDSEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of traffic matrix entries indexed by
    destination and source MAC address."
    ::= { matrix 3 }

matrixDSEntry OBJECT-TYPE
    SYNTAX MatrixDSEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A collection of statistics for communications between
    two addresses on a particular interface.  For example,
    an instance of the matrixSDPkts object might be named
    matrixSDPkts.1.6.8.0.32.10.8.113.6.8.0.32.27.3.176"
    INDEX { matrixDSIndex,
        matrixDSDestAddress, matrixDSSourceAddress }
    ::= { matrixDSTable 1 }

MatrixDSEntry ::= SEQUENCE {
    matrixDSSourceAddress       OCTET STRING,
    matrixDSDestAddress         OCTET STRING,
    matrixDSIndex               INTEGER (1..65535),
    matrixDSPkts                Counter,
    matrixDSOctets              Counter,
    matrixDSErrors              Counter
}

matrixDSSourceAddress OBJECT-TYPE
    SYNTAX OCTET STRING
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The source physical address."
    ::= { matrixDSEntry 1 }

matrixDSDestAddress OBJECT-TYPE
    SYNTAX OCTET STRING
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The destination physical address."
    ::= { matrixDSEntry 2 }

matrixDSIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The set of collected matrix statistics of which
    this entry is a part.  The set of matrix statistics
    identified by a particular value of this index
    is associated with the same matrixControlEntry
    as identified by the same value of
    matrixControlIndex."
    ::= { matrixDSEntry 3 }

matrixDSPkts OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of packets transmitted from the source
    address to the destination address (this number
    includes bad packets)."
    ::= { matrixDSEntry 4 }

matrixDSOctets OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of octets (excluding framing bits
    but including FCS octets) contained in all packets
    transmitted from the source address to the
    destination address."
    ::= { matrixDSEntry 5 }

matrixDSErrors OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of bad packets transmitted from
    the source address to the destination address."
    ::= { matrixDSEntry 6 }

-- The Filter Group

-- Implementation of the Filter group is optional.
--
-- The Filter group allows packets to be captured with an
-- arbitrary filter expression.  A logical data and
-- event stream or "channel" is formed by the packets
-- that match the filter expression.
--
-- This filter mechanism allows the creation of an arbitrary
-- logical expression with which to filter packets.  Each
-- filter associated with a channel is OR'ed with the others.
-- Within a filter, any bits checked in the data and status
-- are AND'ed with respect to other bits in the same filter.
-- The NotMask also allows for checking for inequality.
-- Finally, the channelAcceptType object allows for
-- inversion of the whole equation.
--
-- If a management station wishes to receive a trap to alert
-- it that new packets have been captured and are available
-- for download, it is recommended that it set up an alarm
-- entry that monitors the value of the relevant
-- channelMatches instance.
--
-- The channel can be turned on or off, and can also
-- generate events when packets pass through it.

filterTable OBJECT-TYPE
    SYNTAX SEQUENCE OF FilterEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of packet filter entries."
    ::= { filter 1 }

filterEntry OBJECT-TYPE
    SYNTAX FilterEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A set of parameters for a packet filter applied on a
    particular interface.  As an example, an instance of
    the filterPktData object might be named
    filterPktData.12"
    INDEX { filterIndex }
    ::= { filterTable 1 }

FilterEntry ::= SEQUENCE {
    filterIndex                 INTEGER (1..65535),
    filterChannelIndex          INTEGER (1..65535),
    filterPktDataOffset         INTEGER,
    filterPktData               OCTET STRING,
    filterPktDataMask           OCTET STRING,
    filterPktDataNotMask        OCTET STRING,
    filterPktStatus             INTEGER,
    filterPktStatusMask         INTEGER,
    filterPktStatusNotMask      INTEGER,
    filterOwner                 OwnerString,
    filterStatus                EntryStatus
}

filterIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "An index that uniquely identifies an entry
    in the filter table.  Each such entry defines
    one filter that is to be applied to every packet
    received on an interface."
    ::= { filterEntry 1 }

filterChannelIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "This object identifies the channel of which this
    filter is a part.  The filters identified by a
    particular value of this object are associated with
    the same channel as identified by the same value of
    the channelIndex object."
    ::= { filterEntry 2 }

filterPktDataOffset OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The offset from the beginning of each packet where
    a match of packet data will be attempted.  This offset
    is measured from the point in the physical layer
    packet after the framing bits, if any.  For example,
    in an Ethernet frame, this point is at the beginning
    of the destination MAC address.

    This object may not be modified if the associated
    filterStatus object is equal to valid(1)."
    DEFVAL { 0 }
    ::= { filterEntry 3 }

filterPktData OBJECT-TYPE
    SYNTAX OCTET STRING
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The data that is to be matched with the input
    packet.  For each packet received, this filter and
    the accompanying filterPktDataMask and
    filterPktDataNotMask will be adjusted for the
    offset.  The only bits relevant to this match
    algorithm are those that have the corresponding
    filterPktDataMask bit equal to one.  The following
    three rules are then applied to every packet:

    (1) If the packet is too short and does not have data
        corresponding to part of the filterPktData, the
        packet will fail this data match.

    (2) For each relevant bit from the packet with the
        corresponding filterPktDataNotMask bit set to
        zero, if the bit from the packet is not equal to
        the corresponding bit from the filterPktData,
        then the packet will fail this data match.

    (3) If for every relevant bit from the packet with the
        corresponding filterPktDataNotMask bit set to one,
        the bit from the packet is equal to the
        corresponding bit from the filterPktData, then
        the packet will fail this data match.

    Any packets that have not failed any of the three
    matches above have passed this data match.  In
    particular, a zero length filter will match any
    packet.

    This object may not be modified if the associated
    filterStatus object is equal to valid(1)."
    ::= { filterEntry 4 }

filterPktDataMask OBJECT-TYPE
    SYNTAX OCTET STRING
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The mask that is applied to the match process.
    After adjusting this mask for the offset, only those
    bits in the received packet that correspond to bits
    set in this mask are relevant for further processing
    by the match algorithm.  The offset is applied to
    filterPktDataMask in the same way it is applied to the
    filter.  For the purposes of the matching algorithm,
    if the associated filterPktData object is longer
    than this mask, this mask is conceptually extended
    with '1' bits until it reaches the length of the
    filterPktData object.

    This object may not be modified if the associated
    filterStatus object is equal to valid(1)."
    ::= { filterEntry 5 }

filterPktDataNotMask OBJECT-TYPE
    SYNTAX OCTET STRING
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The inversion mask that is applied to the match
    process.  After adjusting this mask for the offset,
    those relevant bits in the received packet that
    correspond to bits cleared in this mask must all be
    equal to their corresponding bits in the
    filterPktData object for the packet to be accepted.
    In addition, at least one of those relevant bits in
    the received packet that correspond to bits set in
    this mask must be different to its corresponding bit
    in the filterPktData object.

    For the purposes of the matching algorithm, if the
    associated filterPktData object is longer than this
    mask, this mask is conceptually extended with '0'
    bits until it reaches the length of the
    filterPktData object.

    This object may not be modified if the associated
    filterStatus object is equal to valid(1)."
    ::= { filterEntry 6 }

filterPktStatus OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The status that is to be matched with the input
    packet.  The only bits relevant to this match
    algorithm are those that have the corresponding
    filterPktStatusMask bit equal to one.  The following
    two rules are then applied to every packet:

    (1) For each relevant bit from the packet status
        with the corresponding filterPktStatusNotMask bit
        set to zero, if the bit from the packet status is
        not equal to the corresponding bit from the
        filterPktStatus, then the packet will fail this
        status match.

    (2) If for every relevant bit from the packet status
        with the corresponding filterPktStatusNotMask bit
        set to one, the bit from the packet status is
        equal to the corresponding bit from the
        filterPktStatus, then the packet will fail this
        status match.

    Any packets that have not failed either of the two
    matches above have passed this status match.  In
    particular, a zero length status filter will match any
    packet's status.

    The value of the packet status 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 and the bits that represent them are
    dependent on the media type of the interface that
    this channel is receiving packets from.

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

        bit #    Error
        0    Packet is longer than 1518 octets
        1    Packet is shorter than 64 octets
        2    Packet experienced a CRC or Alignment
             error

    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.

    For the purposes of this status matching algorithm,
    if the packet status is longer than this
    filterPktStatus object, this object is conceptually
    extended with '0' bits until it reaches the size of
    the packet status.

    This object may not be modified if the associated
    filterStatus object is equal to valid(1)."
    ::= { filterEntry 7 }

filterPktStatusMask OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The mask that is applied to the status match
    process.  Only those bits in the received packet
    that correspond to bits set in this mask are
    relevant for further processing by the status match
    algorithm.  For the purposes of the matching
    algorithm, if the associated filterPktStatus object
    is longer than this mask, this mask is conceptually
    extended with '1' bits until it reaches the size of
    the filterPktStatus.  In addition, if a packet
    status is longer than this mask, this mask is
    conceptually extended with '0' bits until it reaches
    the size of the packet status.

    This object may not be modified if the associated
    filterStatus object is equal to valid(1)."
    ::= { filterEntry 8 }

filterPktStatusNotMask OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The inversion mask that is applied to the status
    match process.  Those relevant bits in the received
    packet status that correspond to bits cleared in
    this mask must all be equal to their corresponding
    bits in the filterPktStatus object for the packet to
    be accepted.  In addition, at least one of those
    relevant bits in the received packet status that
    correspond to bits set in this mask must be
    different to its corresponding bit in the
    filterPktStatus object for the packet to be
    accepted.

    For the purposes of the matching algorithm, if the
    associated filterPktStatus object or a packet status
    is longer than this mask, this mask is conceptually
    extended with '0' bits until it reaches the longer
    of the lengths of the filterPktStatus object and the
    packet status.

    This object may not be modified if the associated
    filterStatus object is equal to valid(1)."
    ::= { filterEntry 9 }

filterOwner OBJECT-TYPE
    SYNTAX OwnerString
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The entity that configured this entry and is
    therefore using the resources assigned to it."
    ::= { filterEntry 10 }

filterStatus OBJECT-TYPE
    SYNTAX EntryStatus
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The status of this filter entry."
    ::= { filterEntry 11 }

channelTable OBJECT-TYPE
    SYNTAX SEQUENCE OF ChannelEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of packet channel entries."
    ::= { filter 2 }

channelEntry OBJECT-TYPE
    SYNTAX ChannelEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A set of parameters for a packet channel applied on a
    particular interface.  As an example, an instance of
    the channelMatches object might be named
    channelMatches.3"
    INDEX { channelIndex }
    ::= { channelTable 1 }

ChannelEntry ::= SEQUENCE {
    channelIndex               INTEGER (1..65535),
    channelIfIndex             INTEGER (1..65535),
    channelAcceptType          INTEGER,
    channelDataControl         INTEGER,
    channelTurnOnEventIndex    INTEGER (0..65535),
    channelTurnOffEventIndex   INTEGER (0..65535),
    channelEventIndex          INTEGER (0..65535),
    channelEventStatus         INTEGER,
    channelMatches             Counter,
    channelDescription         DisplayString (SIZE (0..127)),
    channelOwner               OwnerString,
    channelStatus              EntryStatus
}

channelIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "An index that uniquely identifies an entry in the
    channel table.  Each such entry defines one channel,
    a logical data and event stream.

    It is suggested that before creating a channel, an
    application should scan all instances of the
    filterChannelIndex object to make sure that there
    are no pre-existing filters that would be
    inadvertently be linked to the channel."
    ::= { channelEntry 1 }

channelIfIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The value of this object uniquely identifies the
    interface on this remote network monitoring device
    to which the associated filters are applied to allow
    data into this channel.  The interface identified by
    a particular value of this object is the same
    interface as identified by the same value of the
    ifIndex object, defined in RFC 1213 and RFC 1573
    [4,6].

    The filters in this group are applied to all packets
    on the local network segment attached to the
    identified interface.

    An agent may or may not be able to tell if
    fundamental changes to the media of the interface
    have occurred and necessitate an invalidation of
    this entry.  For example, a hot-pluggable ethernet
    card could be pulled out and replaced by a
    token-ring card.  In such a case, if the agent has
    such knowledge of the change, it is recommended that
    it invalidate this entry.

    This object may not be modified if the associated
    channelStatus object is equal to valid(1)."
    ::= { channelEntry 2 }

channelAcceptType OBJECT-TYPE
    SYNTAX INTEGER {
    acceptMatched(1),
    acceptFailed(2)
    }
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "This object controls the action of the filters
    associated with this channel.  If this object is equal
    to acceptMatched(1), packets will be accepted to this
    channel if they are accepted by both the packet data
    and packet status matches of an associated filter.  If
    this object is equal to acceptFailed(2), packets will
    be accepted to this channel only if they fail either
    the packet data match or the packet status match of
    each of the associated filters.

    In particular, a channel with no associated filters
    will match no packets if set to acceptMatched(1)
    case and will match all packets in the
    acceptFailed(2) case.

    This object may not be modified if the associated
    channelStatus object is equal to valid(1)."
    ::= { channelEntry 3 }

channelDataControl OBJECT-TYPE
    SYNTAX INTEGER {
    on(1),
    off(2)
    }
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "This object controls the flow of data through this
    channel.  If this object is on(1), data, status and
    events flow through this channel.  If this object is
    off(2), data, status and events will not flow
    through this channel."
    DEFVAL { off }
    ::= { channelEntry 4 }

channelTurnOnEventIndex OBJECT-TYPE
    SYNTAX INTEGER (0..65535)
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The value of this object identifies the event
    that is configured to turn the associated
    channelDataControl from off to on when the event is
    generated.  The event identified by a particular value
    of this object is the same event as identified by the
    same value of the eventIndex object.  If there is no
    corresponding entry in the eventTable, then no
    association exists.  In fact, if no event is intended
    for this channel, channelTurnOnEventIndex must be
    set to zero, a non-existent event index.

    This object may not be modified if the associated
    channelStatus object is equal to valid(1)."
    ::= { channelEntry 5 }

channelTurnOffEventIndex OBJECT-TYPE
    SYNTAX INTEGER (0..65535)
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The value of this object identifies the event
    that is configured to turn the associated
    channelDataControl from on to off when the event is
    generated.  The event identified by a particular value
    of this object is the same event as identified by the
    same value of the eventIndex object.  If there is no
    corresponding entry in the eventTable, then no
    association exists.  In fact, if no event is intended
    for this channel, channelTurnOffEventIndex must be
    set to zero, a non-existent event index.

    This object may not be modified if the associated
    channelStatus object is equal to valid(1)."
    ::= { channelEntry 6 }

channelEventIndex OBJECT-TYPE
    SYNTAX INTEGER (0..65535)
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The value of this object identifies the event
    that is configured to be generated when the
    associated channelDataControl is on and a packet
    is matched.  The event identified by a particular
    value of this object is the same event as identified
    by the same value of the eventIndex object.  If
    there is no corresponding entry in the eventTable,
    then no association exists.  In fact, if no event is
    intended for this channel, channelEventIndex must be
    set to zero, a non-existent event index.

    This object may not be modified if the associated
    channelStatus object is equal to valid(1)."
    ::= { channelEntry 7 }

channelEventStatus OBJECT-TYPE
    SYNTAX INTEGER {
    eventReady(1),
    eventFired(2),
    eventAlwaysReady(3)
    }
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The event status of this channel.

    If this channel is configured to generate events
    when packets are matched, a means of controlling
    the flow of those events is often needed.  When
    this object is equal to eventReady(1), a single
    event may be generated, after which this object
    will be set by the probe to eventFired(2).  While
    in the eventFired(2) state, no events will be
    generated until the object is modified to
    eventReady(1) (or eventAlwaysReady(3)).  The
    management station can thus easily respond to a
    notification of an event by re-enabling this object.

    If the management station wishes to disable this
    flow control and allow events to be generated
    at will, this object may be set to
    eventAlwaysReady(3).  Disabling the flow control
    is discouraged as it can result in high network
    traffic or other performance problems."
    DEFVAL { eventReady }
    ::= { channelEntry 8 }

channelMatches OBJECT-TYPE
    SYNTAX Counter
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of times this channel has matched a
    packet. Note that this object is updated even when
    channelDataControl is set to off."
    ::= { channelEntry 9 }

channelDescription OBJECT-TYPE
    SYNTAX DisplayString (SIZE (0..127))
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "A comment describing this channel."
    ::= { channelEntry 10 }

channelOwner OBJECT-TYPE
    SYNTAX OwnerString
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The entity that configured this entry and is
    therefore using the resources assigned to it."
    ::= { channelEntry 11 }

channelStatus OBJECT-TYPE
    SYNTAX EntryStatus
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The status of this channel entry."
    ::= { channelEntry 12 }


-- The Packet Capture Group

-- Implementation of the Packet Capture group is optional.
--
-- The Packet Capture Group requires implementation of the
-- Filter Group.
--
-- The Packet Capture group allows packets to be captured
-- upon a filter match.  The bufferControlTable controls
-- the captured packets output from a channel that is
-- associated with it.  The captured packets are placed
-- in entries in the captureBufferTable.  These entries are
-- associated with the bufferControlEntry on whose behalf they
-- were stored.

bufferControlTable OBJECT-TYPE
    SYNTAX SEQUENCE OF BufferControlEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of buffers control entries."
    ::= { capture 1 }

bufferControlEntry OBJECT-TYPE
    SYNTAX BufferControlEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A set of parameters that control the collection of
    a stream of packets that have matched filters.  As
    an example, an instance of the
    bufferControlCaptureSliceSize object might be named
    bufferControlCaptureSliceSize.3"
    INDEX { bufferControlIndex }
    ::= { bufferControlTable 1 }

BufferControlEntry ::= SEQUENCE {
    bufferControlIndex                INTEGER (1..65535),
    bufferControlChannelIndex         INTEGER (1..65535),
    bufferControlFullStatus           INTEGER,
    bufferControlFullAction           INTEGER,
    bufferControlCaptureSliceSize     INTEGER,
    bufferControlDownloadSliceSize    INTEGER,
    bufferControlDownloadOffset       INTEGER,
    bufferControlMaxOctetsRequested   INTEGER,
    bufferControlMaxOctetsGranted     INTEGER,
    bufferControlCapturedPackets      INTEGER,
    bufferControlTurnOnTime           TimeTicks,
    bufferControlOwner                OwnerString,
    bufferControlStatus               EntryStatus
}

bufferControlIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "An index that uniquely identifies an entry
    in the bufferControl table.  The value of this
    index shall never be zero.  Each such
    entry defines one set of packets that is
    captured and controlled by one or more filters."
    ::= { bufferControlEntry 1 }

bufferControlChannelIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "An index that identifies the channel that is the
    source of packets for this bufferControl table.
    The channel identified by a particular value of this
    index is the same as identified by the same value of
    the channelIndex object.

    This object may not be modified if the associated
    bufferControlStatus object is equal to valid(1)."
    ::= { bufferControlEntry 2 }

bufferControlFullStatus OBJECT-TYPE
    SYNTAX INTEGER {
        spaceAvailable(1),
        full(2)
    }
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "This object shows whether the buffer has room to
    accept new packets or if it is full.

    If the status is spaceAvailable(1), the buffer is
    accepting new packets normally.  If the status is
    full(2) and the associated bufferControlFullAction
    object is wrapWhenFull, the buffer is accepting new
    packets by deleting enough of the oldest packets
    to make room for new ones as they arrive.  Otherwise,
    if the status is full(2) and the
    bufferControlFullAction object is lockWhenFull,
    then the buffer has stopped collecting packets.

    When this object is set to full(2) the probe must
    not later set it to spaceAvailable(1) except in the
    case of a significant gain in resources such as
    an increase of bufferControlOctetsGranted.  In
    particular, the wrap-mode action of deleting old
    packets to make room for newly arrived packets
    must not affect the value of this object."
    ::= { bufferControlEntry 3 }

bufferControlFullAction OBJECT-TYPE
    SYNTAX INTEGER {
        lockWhenFull(1),
        wrapWhenFull(2)    -- FIFO
    }
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "Controls the action of the buffer when it
    reaches the full status.  When in the lockWhenFull(1)
    state and a packet is added to the buffer that
    fills the buffer, the bufferControlFullStatus will
    be set to full(2) and this buffer will stop capturing
    packets."
    ::= { bufferControlEntry 4 }

bufferControlCaptureSliceSize OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The maximum number of octets of each packet
    that will be saved in this capture buffer.
    For example, if a 1500 octet packet is received by
    the probe and this object is set to 500, then only
    500 octets of the packet will be stored in the
    associated capture buffer.  If this variable is set
    to 0, the capture buffer will save as many octets
    as is possible.

    This object may not be modified if the associated
    bufferControlStatus object is equal to valid(1)."
    DEFVAL { 100 }
    ::= { bufferControlEntry 5 }

bufferControlDownloadSliceSize OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The maximum number of octets of each packet
    in this capture buffer that will be returned in
    an SNMP retrieval of that packet.  For example,
    if 500 octets of a packet have been stored in the
    associated capture buffer, the associated
    bufferControlDownloadOffset is 0, and this
    object is set to 100, then the captureBufferPacket
    object that contains the packet will contain only
    the first 100 octets of the packet.

    A prudent manager will take into account possible
    interoperability or fragmentation problems that may
    occur if the download slice size is set too large.
    In particular, conformant SNMP implementations are not
    required to accept messages whose length exceeds 484
    octets, although they are encouraged to support larger
    datagrams whenever feasible."
    DEFVAL { 100 }
    ::= { bufferControlEntry 6 }

bufferControlDownloadOffset OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The offset of the first octet of each packet
    in this capture buffer that will be returned in
    an SNMP retrieval of that packet.  For example,
    if 500 octets of a packet have been stored in the
    associated capture buffer and this object is set to
    100, then the captureBufferPacket object that
    contains the packet will contain bytes starting
    100 octets into the packet."
    DEFVAL { 0 }
    ::= { bufferControlEntry 7 }

bufferControlMaxOctetsRequested OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The requested maximum number of octets to be
    saved in this captureBuffer, including any
    implementation-specific overhead. If this variable
    is set to -1, the capture buffer will save as many
    octets as is possible.

    When this object is created or modified, the probe
    should set bufferControlMaxOctetsGranted as closely
    to this object as is possible for the particular probe
    implementation and available resources.  However, if
    the object has the special value of -1, the probe
    must set bufferControlMaxOctetsGranted to -1."
    DEFVAL { -1 }
    ::= { bufferControlEntry 8 }

bufferControlMaxOctetsGranted OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The maximum number of octets that can be
    saved in this captureBuffer, including overhead.
    If this variable is -1, the capture buffer will save
    as many octets as possible.

    When the bufferControlMaxOctetsRequested object is
    created or modified, the probe should set this object
    as closely to the requested value as is possible for
    the particular probe implementation and available
    resources.
    However, if the request object has the special value
    of -1, the probe must set this object to -1.
    The probe must not lower this value except as a result
    of a modification to the associated
    bufferControlMaxOctetsRequested object.

    When this maximum number of octets is reached
    and a new packet is to be added to this
    capture buffer and the corresponding
    bufferControlFullAction is set to wrapWhenFull(2),
    enough of the oldest packets associated with this
    capture buffer shall be deleted by the agent so
    that the new packet can be added.  If the
    corresponding bufferControlFullAction is set to
    lockWhenFull(1), the new packet shall be discarded.
    In either case, the probe must set
    bufferControlFullStatus to full(2).

    When the value of this object changes to a value less
    than the current value, entries are deleted from
    the captureBufferTable associated with this
    bufferControlEntry.  Enough of the
    oldest of these captureBufferEntries shall be
    deleted by the agent so that the number of octets
    used remains less than or equal to the new value of
    this object.

    When the value of this object changes to a value
    greater than the current value, the number of
    associated captureBufferEntries may be allowed to
    grow."
    ::= { bufferControlEntry 9 }

bufferControlCapturedPackets OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The number of packets currently in this
    captureBuffer."
    ::= { bufferControlEntry 10 }

bufferControlTurnOnTime OBJECT-TYPE
    SYNTAX TimeTicks
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The value of sysUpTime when this capture buffer was
    first turned on."
    ::= { bufferControlEntry 11 }

bufferControlOwner OBJECT-TYPE
    SYNTAX OwnerString
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The entity that configured this entry and is
    therefore using the resources assigned to it."
    ::= { bufferControlEntry 12 }

bufferControlStatus OBJECT-TYPE
    SYNTAX EntryStatus
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "The status of this buffer Control Entry."
    ::= { bufferControlEntry 13 }

captureBufferTable OBJECT-TYPE
    SYNTAX SEQUENCE OF CaptureBufferEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of packets captured off of a channel."
    ::= { capture 2 }

captureBufferEntry OBJECT-TYPE
    SYNTAX CaptureBufferEntry
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A packet captured off of an attached network.  As an
    example, an instance of the captureBufferPacketData
    object might be named captureBufferPacketData.3.1783"
    INDEX { captureBufferControlIndex, captureBufferIndex }
    ::= { captureBufferTable 1 }

CaptureBufferEntry ::= SEQUENCE {
    captureBufferControlIndex   INTEGER (1..65535),
    captureBufferIndex          INTEGER (1..2147483647),
    captureBufferPacketID       INTEGER,
    captureBufferPacketData     OCTET STRING,
    captureBufferPacketLength   INTEGER,
    captureBufferPacketTime     INTEGER,
    captureBufferPacketStatus   INTEGER
}

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

captureBufferIndex OBJECT-TYPE
    SYNTAX INTEGER (1..2147483647)
    ACCESS read-only
    STATUS mandatory
    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 INTEGER
    ACCESS read-only
    STATUS mandatory
    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
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The data inside the packet, starting at the
    beginning of the packet plus any offset specified in
    the 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 INTEGER
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The actual length (off the wire) of the packet stored
    in this entry, including FCS octets."
    ::= { captureBufferEntry 5 }

captureBufferPacketTime OBJECT-TYPE
    SYNTAX INTEGER
    ACCESS read-only
    STATUS mandatory
    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 INTEGER
    ACCESS read-only
    STATUS mandatory
    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
        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.
--
-- 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
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of events to be generated."
    ::= { event 1 }

eventEntry OBJECT-TYPE
    SYNTAX EventEntry
    ACCESS not-accessible
    STATUS mandatory
    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          INTEGER (1..65535),
    eventDescription    DisplayString (SIZE (0..127)),
    eventType           INTEGER,
    eventCommunity      OCTET STRING (SIZE (0..127)),
    eventLastTimeSent   TimeTicks,
    eventOwner          OwnerString,
    eventStatus         EntryStatus
}

eventIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    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))
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "A comment describing this event entry."
    ::= { eventEntry 2 }

eventType OBJECT-TYPE
    SYNTAX INTEGER {
        none(1),
        log(2),
        snmp-trap(3),    -- send an SNMP trap
        log-and-trap(4)
    }
    ACCESS read-write
    STATUS mandatory
    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))
    ACCESS read-write
    STATUS mandatory
    DESCRIPTION
    "If an SNMP trap is to be sent, it will be sent to
    the SNMP community specified by this octet string.
    In the future this table will be extended to include
    the party security mechanism.  This object shall be
    set to a string of length zero if it is intended that
    that mechanism be used to specify the destination of
    the trap."
    ::= { eventEntry 4 }

eventLastTimeSent OBJECT-TYPE
    SYNTAX TimeTicks
    ACCESS read-only
    STATUS mandatory
    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
    ACCESS read-write
    STATUS mandatory
    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 }

eventStatus OBJECT-TYPE
    SYNTAX EntryStatus
    ACCESS read-write
    STATUS mandatory
    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
    ACCESS not-accessible
    STATUS mandatory
    DESCRIPTION
    "A list of events that have been logged."
    ::= { event 2 }

logEntry OBJECT-TYPE
    SYNTAX LogEntry
    ACCESS not-accessible
    STATUS mandatory
    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           INTEGER (1..65535),
    logIndex                INTEGER (1..2147483647),
    logTime                 TimeTicks,
    logDescription          DisplayString (SIZE (0..255))
}

logEventIndex OBJECT-TYPE
    SYNTAX INTEGER (1..65535)
    ACCESS read-only
    STATUS mandatory
    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."
    ::= { logEntry 1 }

logIndex OBJECT-TYPE
    SYNTAX INTEGER (1..2147483647)
    ACCESS read-only
    STATUS mandatory
    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
    ACCESS read-only
    STATUS mandatory
    DESCRIPTION
    "The value of sysUpTime when this log entry was
    created."
    ::= { logEntry 3 }

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

--  These definitions use the TRAP-TYPE macro as
--  defined in RFC 1215 [10]

--  Remote Network Monitoring Traps

risingAlarm TRAP-TYPE
    ENTERPRISE rmon
    VARIABLES { alarmIndex, alarmVariable, alarmSampleType,
        alarmValue, alarmRisingThreshold }
    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."
    ::= 1

fallingAlarm TRAP-TYPE
    ENTERPRISE rmon
    VARIABLES { alarmIndex, alarmVariable, alarmSampleType,
        alarmValue, alarmFallingThreshold }
    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."
    ::= 2

END