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          RFC1271-MIB DEFINITIONS ::= BEGIN
 
              IMPORTS
                  Counter                              FROM RFC1155-SMI
                  mib-2,DisplayString                  FROM RFC1213-MIB
                  OBJECT-TYPE                          FROM RFC-1212
		  TimeTicks                            FROM SNMPv2-SMI;
 
          --  This MIB module uses the extended OBJECT-TYPE macro as
          --  defined in [9].
 
 
          --  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 to complete a conceptual
              -- row in this table.  Immediately after completing the
              -- create operation, the agent must set this object to
              -- underCreation(3).
              --
              -- 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.
 
 
              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 Statistics Group
          --
          -- Implementation of the Statistics group is optional.
          --
          -- The 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."
              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                   INTEGER
          }
 
          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 [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.
 
                  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)."
              ::= { etherStatsEntry 4 }
 
          etherStatsPkts OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                  "The total number of packets (including error 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."
              ::= { 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 were not an integral number
                  of octets in length or had a bad Frame Check
                  Sequence (FCS)."
              ::= { 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 not an
                  integral number of octets in length or that had a bad
                  Frame Check Sequence (FCS), and were less than 64
                  octets in length (excluding framing bits but
                  including FCS octets)."
              ::= { 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 were not an
                  integral number of octets in length or had
                  a bad Frame Check Sequence (FCS)."
              ::= { 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."
              ::= { etherStatsEntry 13 }
 
          etherStatsPkts64Octets OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                  "The total number of packets (including error
                  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 error
                  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 error
                  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 error
                  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 error
                  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 error
                  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 Group
 
          -- Implementation of the History group is optional.
          --
          -- The history group records periodic statistical samples from
          -- a network and stores them for later retrieval.  The
          -- historyControl table 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.  Currently the only media-
          -- specific table defined is the etherHistoryTable, for
          -- Ethernet networks.
          --
          -- 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 monitor 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."
              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            INTEGER
          }
 
          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 [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.
 
                  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
                  historyControl entry.
 
                  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
                  historyControl entry.
 
                  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
                  historyControl entry.  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 }
 
 
          -- Ether History table
 
          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."
              INDEX { etherHistoryIndex , etherHistorySampleIndex }
              ::= { etherHistoryTable 1 }
 
          EtherHistoryEntry ::= SEQUENCE {
              etherHistoryIndex                 INTEGER (1..65535),
              etherHistorySampleIndex           INTEGER,
              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
              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 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 error 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 were not an
                  integral number of octets in length or had a
                  bad Frame Check Sequence (FCS)."
              ::= { etherHistoryEntry 9 }
 
 
 
          etherHistoryUndersizePkts OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                  "The number of packets received during this
                  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
                  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 not an integral
                  number of octets in length or that
                  had a bad Frame Check Sequence (FCS), and
                  were less than 64 octets in length (excluding
                  framing bits but including FCS octets)."
              ::= { etherHistoryEntry 12 }
 
          etherHistoryJabbers OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                  "The number of packets received during this
                  interval that were longer than 1518 octets
                  (excluding framing bits but including FCS octets),
                  and were not an integral number of octets in
                  length or had a bad Frame Check Sequence (FCS)."
              ::= { 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 interval."
              ::= { 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
                  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."
              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 (1..65535),
              alarmFallingEventIndex        INTEGER (1..65535),
              alarmOwner                    OwnerString,
              alarmStatus                   INTEGER
          }
 
          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 given to ensure that the variable being
                  monitored will not exceed 2^31 - 1 and roll
                  over the alarmValue object during the 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.  The value during the current sampling period
                  is not made available until the period is completed."
              ::= { 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 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 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."
              INDEX { hostControlIndex }
              ::= { hostControlTable 1 }
 
          HostControlEntry ::= SEQUENCE {
              hostControlIndex            INTEGER (1..65535),
              hostControlDataSource       OBJECT IDENTIFIER,
              hostControlTableSize        INTEGER,
              hostControlLastDeleteTime   TimeTicks,
              hostControlOwner            OwnerString,
              hostControlStatus           INTEGER
          }
 
          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 [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.
 
                  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."
              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 packets without errors 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 errors 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 packets that contained errors."
              ::= { 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 packets that contained errors."
              ::= { hostEntry 7 }
 
          hostOutErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                  "The number of error 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."
              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 packets without errors 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 packets including errors 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 packets that contained errors."
              ::= { 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 packets that contained errors."
              ::= { hostTimeEntry 7 }
 
          hostTimeOutErrors OBJECT-TYPE
              SYNTAX Counter
              ACCESS read-only
              STATUS mandatory
              DESCRIPTION
                  "The number of error 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."
              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          INTEGER
          }
 
          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."
              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."
              INDEX { matrixControlIndex }
              ::= { matrixControlTable 1 }
 
          MatrixControlEntry ::= SEQUENCE {
              matrixControlIndex           INTEGER (1..65535),
              matrixControlDataSource      OBJECT IDENTIFIER,
              matrixControlTableSize       INTEGER,
              matrixControlLastDeleteTime  TimeTicks,
              matrixControlOwner           OwnerString,
              matrixControlStatus          INTEGER
          }
 
          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 [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.
 
                  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."
              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 error 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 error 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 address on a particular interface."
              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 error 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 error 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.
          --
          -- 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."
              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                INTEGER
 
 
          }
 
          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.
 
                  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.
 
                  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
                  object, filterPktStatus 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."
              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                INTEGER
          }
 
 
 
          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."
              ::= { 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 [4,6].  The filters in
                  this group are applied to all packets on the local
                  network segment attached to the identified
                  interface.
 
                  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.
 
 
                  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."
              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               INTEGER
          }
 
          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 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."
              INDEX { captureBufferControlIndex, captureBufferIndex }
              ::= { captureBufferTable 1 }
 
          CaptureBufferEntry ::= SEQUENCE {
              captureBufferControlIndex   INTEGER (1..65535),
              captureBufferIndex          INTEGER,
              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
              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."
              ::= { 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
                  filterPacketStatus.  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.
 
                  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.  Three traps are defined in a companion
          -- document: risingAlarm, fallingAlarm, and packetMatch.
          -- 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."
              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         INTEGER
          }
 
          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."
              INDEX { logEventIndex, logIndex }
 
 
              ::= { logTable 1 }
 
          LogEntry ::= SEQUENCE {
              logEventIndex           INTEGER (1..65535),
              logIndex                INTEGER,
              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
              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 }
 
          END