rmon2-mib

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        the dataSource points to an interface which is a locally
        attached repeater and the agent has additional information
        about the source port of traffic seen on that repeater."
    ::= { addressMapEntry 3 }

addressMapPhysicalAddress OBJECT-TYPE
    SYNTAX      OCTET STRING
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The last source physical address on which the associated
        network address was seen.  If the protocol of the associated
        network address was encapsulated inside of a network-level or
        higher protocol, this will be the address of the next-lower
        protocol with the addressRecognitionCapable bit enabled and
        will be formatted as specified for that protocol."
    ::= { addressMapEntry 4 }

addressMapLastChange OBJECT-TYPE
    SYNTAX      TimeStamp
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The value of sysUpTime at the time this entry was last
        created or the values of the physical address changed.

        This can be used to help detect duplicate address problems, in
        which case this object will be updated frequently."
    ::= { addressMapEntry 5 }

--
-- Network Layer Host Group





--
-- Counts the amount of traffic sent from and to each network address
-- discovered by the probe.
-- Note that while the hlHostControlTable also has objects that
-- control an optional alHostTable, implementation of the alHostTable is
-- not required to fully implement this group.

hlHostControlTable OBJECT-TYPE
    SYNTAX      SEQUENCE OF HlHostControlEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "A list of higher layer (i.e. non-MAC) host table control entries.

        These entries will enable the collection of the network and
        application level host tables indexed by network addresses.
        Both the network and application level host tables are
        controlled by this table is so that they will both be created
        and deleted at the same time, further increasing the ease with
        which they can be implemented as a single datastore (note that
        if an implementation stores application layer host records in
        memory, it can derive network layer host records from them).

        Entries in the nlHostTable will be created on behalf of each
        entry in this table. Additionally, if this probe implements
        the alHostTable, entries in the alHostTable will be created on
        behalf of each entry in this table.

        Implementations are encouraged to add an entry per monitored
        interface upon initialization so that a default collection
        of host statistics is available."
    ::= { nlHost 1 }

hlHostControlEntry OBJECT-TYPE
    SYNTAX      HlHostControlEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "A conceptual row in the hlHostControlTable.

        An example of the indexing of this entry is
        hlHostControlNlDroppedFrames.1"
    INDEX { hlHostControlIndex }
    ::= { hlHostControlTable 1 }

HlHostControlEntry ::= SEQUENCE {
    hlHostControlIndex               Integer32,
    hlHostControlDataSource          DataSource,





    hlHostControlNlDroppedFrames     Counter32,
    hlHostControlNlInserts           Counter32,
    hlHostControlNlDeletes           Counter32,
    hlHostControlNlMaxDesiredEntries Integer32,
    hlHostControlAlDroppedFrames     Counter32,
    hlHostControlAlInserts           Counter32,
    hlHostControlAlDeletes           Counter32,
    hlHostControlAlMaxDesiredEntries Integer32,
    hlHostControlOwner               OwnerString,
    hlHostControlStatus              RowStatus
}

hlHostControlIndex OBJECT-TYPE
    SYNTAX      Integer32 (1..65535)
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "An index that uniquely identifies an entry in the
        hlHostControlTable.  Each such entry defines
        a function that discovers hosts on a particular
        interface and places statistics about them in the
        nlHostTable, and optionally in the alHostTable, on
        behalf of this hlHostControlEntry."
    ::= { hlHostControlEntry 1 }

hlHostControlDataSource OBJECT-TYPE
    SYNTAX      DataSource
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The source of data for the associated host tables.

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

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

hlHostControlNlDroppedFrames OBJECT-TYPE
    SYNTAX     Counter32
    MAX-ACCESS read-only
    STATUS     current
    DESCRIPTION
       "The total number of frames which were received by the probe
        and therefore not accounted for in the *StatsDropEvents, but
        for which the probe chose not to count for the associated





        nlHost entries for whatever reason.  Most often, this event
        occurs when the probe is out of some resources and decides to
        shed load from this collection.

        This count does not include packets that were not counted
        because they had MAC-layer errors.

        Note that if the nlHostTable is inactive because no protocols
        are enabled in the protocol directory, this value should be 0.

        Note that, unlike the dropEvents counter, this number is the
        exact number of frames dropped."
    ::= { hlHostControlEntry 3 }

hlHostControlNlInserts OBJECT-TYPE
    SYNTAX     Counter32
    MAX-ACCESS read-only
    STATUS     current
    DESCRIPTION
        "The number of times an nlHost entry has been
        inserted into the nlHost table.  If an entry is inserted, then
        deleted, and then inserted, this counter will be incremented
        by 2.

        To allow for efficient implementation strategies, agents may
        delay updating this object for short periods of time.  For
        example, an implementation strategy may allow internal
        data structures to differ from those visible via SNMP for
        short periods of time.  This counter may reflect the internal
        data structures for those short periods of time.

        Note that the table size can be determined by subtracting
        hlHostControlNlDeletes from hlHostControlNlInserts."
    ::= { hlHostControlEntry 4 }

hlHostControlNlDeletes OBJECT-TYPE
    SYNTAX     Counter32
    MAX-ACCESS read-only
    STATUS     current
    DESCRIPTION
        "The number of times an nlHost entry has been
        deleted from the nlHost table (for any reason).  If an entry
        is deleted, then inserted, and then deleted, this counter will
        be incremented by 2.

        To allow for efficient implementation strategies, agents may
        delay updating this object for short periods of time.  For
        example, an implementation strategy may allow internal





        data structures to differ from those visible via SNMP for
        short periods of time.  This counter may reflect the internal
        data structures for those short periods of time.

        Note that the table size can be determined by subtracting
        hlHostControlNlDeletes from hlHostControlNlInserts."
    ::= { hlHostControlEntry 5 }

hlHostControlNlMaxDesiredEntries OBJECT-TYPE
    SYNTAX      Integer32 (-1..2147483647)
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The maximum number of entries that are desired in the
        nlHostTable on behalf of this control entry. The probe will
        not create more than this number of associated entries in the
        table, but may choose to create fewer entries in this table
        for any reason including the lack of resources.

        If this object is set to a value less than the current number
        of entries, enough entries are chosen in an
        implementation-dependent manner and deleted so that the number
        of entries in the table equals the value of this object.

        If this value is set to -1, the probe may create any number
        of entries in this table.  If the associated
        hlHostControlStatus object is equal to `active', this
        object may not be modified.

        This object may be used to control how resources are allocated
        on the probe for the various RMON functions."
    ::= { hlHostControlEntry 6 }

hlHostControlAlDroppedFrames OBJECT-TYPE
    SYNTAX     Counter32
    MAX-ACCESS read-only
    STATUS     current
    DESCRIPTION
       "The total number of frames which were received by the probe
        and therefore not accounted for in the *StatsDropEvents, but
        for which the probe chose not to count for the associated
        alHost entries for whatever reason.  Most often, this event
        occurs when the probe is out of some resources and decides to
        shed load from this collection.

        This count does not include packets that were not counted
        because they had MAC-layer errors.






        Note that if the alHostTable is not implemented or is inactive
        because no protocols are enabled in the protocol directory,
        this value should be 0.

        Note that, unlike the dropEvents counter, this number is the
        exact number of frames dropped."
    ::= { hlHostControlEntry 7 }

hlHostControlAlInserts OBJECT-TYPE
    SYNTAX     Counter32
    MAX-ACCESS read-only
    STATUS     current
    DESCRIPTION
        "The number of times an alHost entry has been
        inserted into the alHost table.  If an entry is inserted, then
        deleted, and then inserted, this counter will be incremented
        by 2.

        To allow for efficient implementation strategies, agents may
        delay updating this object for short periods of time.  For
        example, an implementation strategy may allow internal
        data structures to differ from those visible via SNMP for
        short periods of time.  This counter may reflect the internal
        data structures for those short periods of time.

        Note that the table size can be determined by subtracting
        hlHostControlAlDeletes from hlHostControlAlInserts."
    ::= { hlHostControlEntry 8 }

hlHostControlAlDeletes OBJECT-TYPE
    SYNTAX     Counter32
    MAX-ACCESS read-only
    STATUS     current
    DESCRIPTION
        "The number of times an alHost entry has been
        deleted from the alHost table (for any reason).  If an entry
        is deleted, then inserted, and then deleted, this counter will
        be incremented by 2.

        To allow for efficient implementation strategies, agents may
        delay updating this object for short periods of time.  For
        example, an implementation strategy may allow internal
        data structures to differ from those visible via SNMP for
        short periods of time.  This counter may reflect the internal
        data structures for those short periods of time.

        Note that the table size can be determined by subtracting
        hlHostControlAlDeletes from hlHostControlAlInserts."





    ::= { hlHostControlEntry 9 }

hlHostControlAlMaxDesiredEntries OBJECT-TYPE
    SYNTAX      Integer32 (-1..2147483647)
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The maximum number of entries that are desired in the alHost
        table on behalf of this control entry. The probe will not
        create more than this number of associated entries in the
        table, but may choose to create fewer entries in this table
        for any reason including the lack of resources.

        If this object is set to a value less than the current number
        of entries, enough entries are chosen in an
        implementation-dependent manner and deleted so that the number
        of entries in the table equals the value of this object.

        If this value is set to -1, the probe may create any number
        of entries in this table.  If the associated
        hlHostControlStatus object is equal to `active', this
        object may not be modified.

        This object may be used to control how resources are allocated
        on the probe for the various RMON functions."
    ::= { hlHostControlEntry 10 }

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

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

        An entry may not exist in the active state unless all
        objects in the entry have an appropriate value.

        If this object is not equal to active(1), all associated
        entries in the nlHostTable and alHostTable shall be deleted."