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RMON-MIB.yang



  module RMON-MIB {

    yang-version 1;

    namespace
      "urn:ietf:params:xml:ns:yang:smiv2:RMON-MIB";

    prefix rmon-mib;

    import SNMPv2-TC {
      prefix smiv2;
    }
    import yang-smi {
      prefix smi;
    }
    import ietf-yang-types {
      prefix yang;
    }

    organization
      "IETF RMON MIB Working Group";

    contact
      "Steve Waldbusser
      Phone: +1-650-948-6500
      Fax:   +1-650-745-0671
      Email: waldbusser@nextbeacon.com";

    description
      "Remote network monitoring devices, often called
      monitors or probes, are instruments that exist for
      the purpose of managing a network. This MIB defines
      objects for managing remote network monitoring devices.";

    revision "2000-05-11" {
      description
        "Reformatted into SMIv2 format.
         
         This version published as RFC 2819.";
    }

    revision "1995-02-01" {
      description
        "Bug fixes, clarifications and minor changes based on
         implementation experience, published as RFC1757 [18].
         
         Two changes were made to object definitions:
         
         1) A new status bit has been defined for the
         captureBufferPacketStatus object, indicating that the
         packet order within the capture buffer may not be identical to
         the packet order as received off the wire.  This bit may only
         
         be used for packets transmitted by the probe.  Older NMS
         applications can safely ignore this status bit, which might be
         used by newer agents.
         
         2) The packetMatch trap has been removed.  This trap was never
         actually 'approved' and was not added to this document along
         with the risingAlarm and fallingAlarm traps. The packetMatch
         trap could not be throttled, which could cause disruption of
         normal network traffic under some circumstances. An NMS should
         configure a risingAlarm threshold on the appropriate
         channelMatches instance if a trap is desired for a packetMatch
         event. Note that logging of packetMatch events is still
         supported--only trap generation for such events has been
         removed.
         
         In addition, several clarifications to individual object
         definitions have been added to assist agent and NMS
         implementors:
         
         - global definition of 'good packets' and 'bad packets'
         
         - more detailed text governing conceptual row creation and
           modification
         
         - instructions for probes relating to interface changes and
           disruptions
         
         - clarification of some ethernet counter definitions
         
         - recommended formula for calculating network utilization
         
         - clarification of channel and captureBuffer behavior for some
           unusual conditions
         
         - examples of proper instance naming for each table";
    }

    revision "1991-11-01" {
      description
        "The original version of this MIB, published as RFC1271.";
    }


    typedef OwnerString {
      type binary {
        length "0..127";
      }
      description
        "This data type is used to model an administratively
         assigned name of the owner of a resource. Implementations
         must accept values composed of well-formed NVT ASCII
         sequences. In addition, implementations should accept
         values composed of well-formed UTF-8 sequences.
         
         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.";
    }

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

    container statistics {
      smi:oid "1.3.6.1.2.1.16.1";
      list etherStatsEntry {
        smi:oid "1.3.6.1.2.1.16.1.1.1";
        key "etherStatsIndex";
        description
          "A collection of statistics kept for a particular
            Ethernet interface.  As an example, an instance of the
            etherStatsPkts object might be named etherStatsPkts.1";
        leaf etherStatsIndex {
          smi:oid "1.3.6.1.2.1.16.1.1.1.1";
          type int32 {
            range "1..65535";
          }
          description
            "The value of this object uniquely identifies this
               etherStats entry.";
        }

        leaf etherStatsDataSource {
          smi:oid "1.3.6.1.2.1.16.1.1.1.2";
          type yang:object-identifier;
          description
            "This object identifies the source of the data that
               this etherStats entry is configured to analyze.  This
               source can be any ethernet interface on this device.
               In order to identify a particular interface, this object
               shall identify the instance of the ifIndex object,
               defined in RFC 2233 [17], for the desired interface.
               For example, if an entry were to receive data from
               interface #1, this object would be set to ifIndex.1.
               
               The statistics in this group reflect all packets
               on the local network segment attached to the identified
               interface.
               
               An agent may or may not be able to tell if fundamental
               changes to the media of the interface have occurred and
               necessitate an invalidation of this entry.  For example, a
               hot-pluggable ethernet card could be pulled out and replaced
               by a token-ring card.  In such a case, if the agent has such
               knowledge of the change, it is recommended that it
               invalidate this entry.
               
               This object may not be modified if the associated
               etherStatsStatus object is equal to valid(1).";
        }

        leaf etherStatsDropEvents {
          smi:oid "1.3.6.1.2.1.16.1.1.1.3";
          type yang:counter32;
          config false;
          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.";
        }

        leaf etherStatsOctets {
          smi:oid "1.3.6.1.2.1.16.1.1.1.4";
          type yang:counter32;
          units "Octets";
          config false;
          description
            "The total number of octets of data (including
               those in bad packets) received on the
               network (excluding framing bits but including
               FCS octets).
               
               This object can be used as a reasonable estimate of
               10-Megabit ethernet utilization.  If greater precision is
               desired, the etherStatsPkts and etherStatsOctets objects
               should be sampled before and after a common interval.  The
               differences in the sampled values are Pkts and Octets,
               respectively, and the number of seconds in the interval is
               Interval.  These values are used to calculate the Utilization
               as follows:
               
                                Pkts * (9.6 + 6.4) + (Octets * .8)
                Utilization = -------------------------------------
                                        Interval * 10,000
               
               The result of this equation is the value Utilization which
               is the percent utilization of the ethernet segment on a
               scale of 0 to 100 percent.";
        }

        leaf etherStatsPkts {
          smi:oid "1.3.6.1.2.1.16.1.1.1.5";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The total number of packets (including bad packets,
               broadcast packets, and multicast packets) received.";
        }

        leaf etherStatsBroadcastPkts {
          smi:oid "1.3.6.1.2.1.16.1.1.1.6";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The total number of good packets received that were
               directed to the broadcast address.  Note that this
               does not include multicast packets.";
        }

        leaf etherStatsMulticastPkts {
          smi:oid "1.3.6.1.2.1.16.1.1.1.7";
          type yang:counter32;
          units "Packets";
          config false;
          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.";
        }

        leaf etherStatsCRCAlignErrors {
          smi:oid "1.3.6.1.2.1.16.1.1.1.8";
          type yang:counter32;
          units "Packets";
          config false;
          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 had either a bad
               Frame Check Sequence (FCS) with an integral
               number of octets (FCS Error) or a bad FCS with
               a non-integral number of octets (Alignment Error).";
        }

        leaf etherStatsUndersizePkts {
          smi:oid "1.3.6.1.2.1.16.1.1.1.9";
          type yang:counter32;
          units "Packets";
          config false;
          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.";
        }

        leaf etherStatsOversizePkts {
          smi:oid "1.3.6.1.2.1.16.1.1.1.10";
          type yang:counter32;
          units "Packets";
          config false;
          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.";
        }

        leaf etherStatsFragments {
          smi:oid "1.3.6.1.2.1.16.1.1.1.11";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The total number of packets received that were less than
               64 octets in length (excluding framing bits but including
               FCS octets) and had either a bad Frame Check Sequence
               (FCS) with an integral number of octets (FCS Error) or a
               bad FCS with a non-integral number of octets (Alignment
               Error).
               
               Note that it is entirely normal for etherStatsFragments to
               increment.  This is because it counts both runts (which are
               normal occurrences due to collisions) and noise hits.";
        }

        leaf etherStatsJabbers {
          smi:oid "1.3.6.1.2.1.16.1.1.1.12";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The total number of packets received that were
               longer than 1518 octets (excluding framing bits,
               but including FCS octets), and had either a bad
               Frame Check Sequence (FCS) with an integral number
               of octets (FCS Error) or a bad FCS with a non-integral
               number of octets (Alignment Error).
               
               Note that this definition of jabber is different
               than the definition in IEEE-802.3 section 8.2.1.5
               (10BASE5) and section 10.3.1.4 (10BASE2).  These
               documents define jabber as the condition where any
               packet exceeds 20 ms.  The allowed range to detect
               jabber is between 20 ms and 150 ms.";
        }

        leaf etherStatsCollisions {
          smi:oid "1.3.6.1.2.1.16.1.1.1.13";
          type yang:counter32;
          units "Collisions";
          config false;
          description
            "The best estimate of the total number of collisions
               on this Ethernet segment.
               
               The value returned will depend on the location of the
               RMON probe. Section 8.2.1.3 (10BASE-5) and section
               10.3.1.3 (10BASE-2) of IEEE standard 802.3 states that a
               station must detect a collision, in the receive mode, if
               three or more stations are transmitting simultaneously.  A
               repeater port must detect a collision when two or more
               
               stations are transmitting simultaneously.  Thus a probe
               placed on a repeater port could record more collisions
               than a probe connected to a station on the same segment
               would.
               
               Probe location plays a much smaller role when considering
               10BASE-T.  14.2.1.4 (10BASE-T) of IEEE standard 802.3
               defines a collision as the simultaneous presence of signals
               on the DO and RD circuits (transmitting and receiving
               at the same time).  A 10BASE-T station can only detect
               collisions when it is transmitting.  Thus probes placed on
               a station and a repeater, should report the same number of
               collisions.
               
               Note also that an RMON probe inside a repeater should
               ideally report collisions between the repeater and one or
               more other hosts (transmit collisions as defined by IEEE
               802.3k) plus receiver collisions observed on any coax
               segments to which the repeater is connected.";
        }

        leaf etherStatsPkts64Octets {
          smi:oid "1.3.6.1.2.1.16.1.1.1.14";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The total number of packets (including bad
               packets) received that were 64 octets in length
               (excluding framing bits but including FCS octets).";
        }

        leaf etherStatsPkts65to127Octets {
          smi:oid "1.3.6.1.2.1.16.1.1.1.15";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The total number of packets (including bad
               packets) received that were between
               65 and 127 octets in length inclusive
               (excluding framing bits but including FCS octets).";
        }

        leaf etherStatsPkts128to255Octets {
          smi:oid "1.3.6.1.2.1.16.1.1.1.16";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The total number of packets (including bad
               packets) received that were between
               128 and 255 octets in length inclusive
               (excluding framing bits but including FCS octets).";
        }

        leaf etherStatsPkts256to511Octets {
          smi:oid "1.3.6.1.2.1.16.1.1.1.17";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The total number of packets (including bad
               packets) received that were between
               256 and 511 octets in length inclusive
               (excluding framing bits but including FCS octets).";
        }

        leaf etherStatsPkts512to1023Octets {
          smi:oid "1.3.6.1.2.1.16.1.1.1.18";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The total number of packets (including bad
               packets) received that were between
               512 and 1023 octets in length inclusive
               (excluding framing bits but including FCS octets).";
        }

        leaf etherStatsPkts1024to1518Octets {
          smi:oid "1.3.6.1.2.1.16.1.1.1.19";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The total number of packets (including bad
               packets) received that were between
               1024 and 1518 octets in length inclusive
               (excluding framing bits but including FCS octets).";
        }

        leaf etherStatsOwner {
          smi:oid "1.3.6.1.2.1.16.1.1.1.20";
          type OwnerString;
          description
            "The entity that configured this entry and is therefore
               using the resources assigned to it.";
        }

        leaf etherStatsStatus {
          smi:oid "1.3.6.1.2.1.16.1.1.1.21";
          type EntryStatus;
          description
            "The status of this etherStats entry.";
        }
      }  // list etherStatsEntry
    }  // container statistics

    container history {
      smi:oid "1.3.6.1.2.1.16.2";
      list historyControlEntry {
        smi:oid "1.3.6.1.2.1.16.2.1.1";
        key "historyControlIndex";
        description
          "A list of parameters that set up a periodic sampling of
            statistics.  As an example, an instance of the
            historyControlInterval object might be named
            historyControlInterval.2";
        leaf historyControlIndex {
          smi:oid "1.3.6.1.2.1.16.2.1.1.1";
          type int32 {
            range "1..65535";
          }
          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.";
        }

        leaf historyControlDataSource {
          smi:oid "1.3.6.1.2.1.16.2.1.1.2";
          type yang:object-identifier;
          description
            "This object identifies the source of the data for
               which historical data was collected and
               placed in a media-specific table on behalf of this
               historyControlEntry.  This source can be any
               interface on this device.  In order to identify
               
               a particular interface, this object shall identify
               the instance of the ifIndex object, defined
               in  RFC 2233 [17], for the desired interface.
               For example, if an entry were to receive data from
               interface #1, this object would be set to ifIndex.1.
               
               The statistics in this group reflect all packets
               on the local network segment attached to the identified
               interface.
               
               An agent may or may not be able to tell if fundamental
               changes to the media of the interface have occurred and
               necessitate an invalidation of this entry.  For example, a
               hot-pluggable ethernet card could be pulled out and replaced
               by a token-ring card.  In such a case, if the agent has such
               knowledge of the change, it is recommended that it
               invalidate this entry.
               
               This object may not be modified if the associated
               historyControlStatus object is equal to valid(1).";
        }

        leaf historyControlBucketsRequested {
          smi:default "50";
          smi:oid "1.3.6.1.2.1.16.2.1.1.3";
          type int32 {
            range "1..65535";
          }
          description
            "The requested number of discrete time intervals
               over which data is to be saved in the part of the
               media-specific table associated with this
               historyControlEntry.
               
               When this object is created or modified, the probe
               should set historyControlBucketsGranted as closely to
               this object as is possible for the particular probe
               implementation and available resources.";
        }

        leaf historyControlBucketsGranted {
          smi:oid "1.3.6.1.2.1.16.2.1.1.4";
          type int32 {
            range "1..65535";
          }
          config false;
          description
            "The number of discrete sampling intervals
               over which data shall be saved in the part of
               the media-specific table associated with this
               historyControlEntry.
               
               When the associated historyControlBucketsRequested
               object is created or modified, the probe
               should set this object as closely to the requested
               value as is possible for the particular
               probe implementation and available resources.  The
               probe must not lower this value except as a result
               of a modification to the associated
               historyControlBucketsRequested object.
               
               There will be times when the actual number of
               buckets associated with this entry is less than
               the value of this object.  In this case, at the
               end of each sampling interval, a new bucket will
               be added to the media-specific table.
               
               When the number of buckets reaches the value of
               this object and a new bucket is to be added to the
               media-specific table, the oldest bucket associated
               with this historyControlEntry shall be deleted by
               the agent so that the new bucket can be added.
               
               When the value of this object changes to a value less
               than the current value, entries are deleted
               from the media-specific table associated with this
               historyControlEntry.  Enough of the oldest of these
               entries shall be deleted by the agent so that their
               number remains less than or equal to the new value of
               this object.
               
               When the value of this object changes to a value greater
               than the current value, the number of associated media-
               specific entries may be allowed to grow.";
        }

        leaf historyControlInterval {
          smi:default "1800";
          smi:oid "1.3.6.1.2.1.16.2.1.1.5";
          type int32 {
            range "1..3600";
          }
          units "Seconds";
          description
            "The interval in seconds over which the data is
               sampled for each bucket in the part of the
               media-specific table associated with this
               historyControlEntry.  This interval can
               be set to any number of seconds between 1 and
               3600 (1 hour).
               
               Because the counters in a bucket may overflow at their
               
               maximum value with no indication, a prudent manager will
               take into account the possibility of overflow in any of
               the associated counters.  It is important to consider the
               minimum time in which any counter could overflow on a
               particular media type and set the historyControlInterval
               object to a value less than this interval.  This is
               typically most important for the 'octets' counter in any
               media-specific table.  For example, on an Ethernet
               network, the etherHistoryOctets counter could overflow
               in about one hour at the Ethernet's maximum
               utilization.
               
               This object may not be modified if the associated
               historyControlStatus object is equal to valid(1).";
        }

        leaf historyControlOwner {
          smi:oid "1.3.6.1.2.1.16.2.1.1.6";
          type OwnerString;
          description
            "The entity that configured this entry and is therefore
               using the resources assigned to it.";
        }

        leaf historyControlStatus {
          smi:oid "1.3.6.1.2.1.16.2.1.1.7";
          type EntryStatus;
          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).";
        }
      }  // list historyControlEntry

      list etherHistoryEntry {
        smi:oid "1.3.6.1.2.1.16.2.2.1";
        key "etherHistoryIndex etherHistorySampleIndex";
        description
          "An historical sample of Ethernet statistics on a particular
            Ethernet interface.  This sample is associated with the
            historyControlEntry which set up the parameters for
            a regular collection of these samples.  As an example, an
            instance of the etherHistoryPkts object might be named
            etherHistoryPkts.2.89";
        leaf etherHistoryIndex {
          smi:oid "1.3.6.1.2.1.16.2.2.1.1";
          type int32 {
            range "1..65535";
          }
          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.";
        }

        leaf etherHistorySampleIndex {
          smi:oid "1.3.6.1.2.1.16.2.2.1.2";
          type int32 {
            range "1..2147483647";
          }
          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.";
        }

        leaf etherHistoryIntervalStart {
          smi:oid "1.3.6.1.2.1.16.2.2.1.3";
          type yang:timeticks;
          config false;
          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.";
        }

        leaf etherHistoryDropEvents {
          smi:oid "1.3.6.1.2.1.16.2.2.1.4";
          type yang:counter32;
          config false;
          description
            "The total number of events in which packets
               were dropped by the probe due to lack of resources
               during this sampling interval.  Note that this number
               is not necessarily the number of packets dropped, it
               is just the number of times this condition has been
               
               detected.";
        }

        leaf etherHistoryOctets {
          smi:oid "1.3.6.1.2.1.16.2.2.1.5";
          type yang:counter32;
          units "Octets";
          config false;
          description
            "The total number of octets of data (including
               those in bad packets) received on the
               network (excluding framing bits but including
               FCS octets).";
        }

        leaf etherHistoryPkts {
          smi:oid "1.3.6.1.2.1.16.2.2.1.6";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The number of packets (including bad packets)
               received during this sampling interval.";
        }

        leaf etherHistoryBroadcastPkts {
          smi:oid "1.3.6.1.2.1.16.2.2.1.7";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The number of good packets received during this
               sampling interval that were directed to the
               broadcast address.";
        }

        leaf etherHistoryMulticastPkts {
          smi:oid "1.3.6.1.2.1.16.2.2.1.8";
          type yang:counter32;
          units "Packets";
          config false;
          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.";
        }

        leaf etherHistoryCRCAlignErrors {
          smi:oid "1.3.6.1.2.1.16.2.2.1.9";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The number of packets received during this
               sampling interval that had a length (excluding
               framing bits but including FCS octets) between
               64 and 1518 octets, inclusive, but had either a bad Frame
               Check Sequence (FCS) with an integral number of octets
               (FCS Error) or a bad FCS with a non-integral number
               of octets (Alignment Error).";
        }

        leaf etherHistoryUndersizePkts {
          smi:oid "1.3.6.1.2.1.16.2.2.1.10";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The number of packets received during this
               sampling interval that were less than 64 octets
               long (excluding framing bits but including FCS
               octets) and were otherwise well formed.";
        }

        leaf etherHistoryOversizePkts {
          smi:oid "1.3.6.1.2.1.16.2.2.1.11";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The number of packets received during this
               sampling interval that were longer than 1518
               octets (excluding framing bits but including
               FCS octets) but were otherwise well formed.";
        }

        leaf etherHistoryFragments {
          smi:oid "1.3.6.1.2.1.16.2.2.1.12";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The total number of packets received during this
               sampling interval that were less than 64 octets in
               length (excluding framing bits but including FCS
               
               octets) had either a bad Frame Check Sequence (FCS)
               with an integral number of octets (FCS Error) or a bad
               FCS with a non-integral number of octets (Alignment
               Error).
               
               Note that it is entirely normal for etherHistoryFragments to
               increment.  This is because it counts both runts (which are
               normal occurrences due to collisions) and noise hits.";
        }

        leaf etherHistoryJabbers {
          smi:oid "1.3.6.1.2.1.16.2.2.1.13";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The number of packets received during this
               sampling interval that were longer than 1518 octets
               (excluding framing bits but including FCS octets),
               and  had either a bad Frame Check Sequence (FCS)
               with an integral number of octets (FCS Error) or
               a bad FCS with a non-integral number of octets
               (Alignment Error).
               
               Note that this definition of jabber is different
               than the definition in IEEE-802.3 section 8.2.1.5
               (10BASE5) and section 10.3.1.4 (10BASE2).  These
               documents define jabber as the condition where any
               packet exceeds 20 ms.  The allowed range to detect
               jabber is between 20 ms and 150 ms.";
        }

        leaf etherHistoryCollisions {
          smi:oid "1.3.6.1.2.1.16.2.2.1.14";
          type yang:counter32;
          units "Collisions";
          config false;
          description
            "The best estimate of the total number of collisions
               on this Ethernet segment during this sampling
               interval.
               
               The value returned will depend on the location of the
               RMON probe. Section 8.2.1.3 (10BASE-5) and section
               10.3.1.3 (10BASE-2) of IEEE standard 802.3 states that a
               station must detect a collision, in the receive mode, if
               three or more stations are transmitting simultaneously.  A
               repeater port must detect a collision when two or more
               
               stations are transmitting simultaneously.  Thus a probe
               placed on a repeater port could record more collisions
               than a probe connected to a station on the same segment
               would.
               
               Probe location plays a much smaller role when considering
               10BASE-T.  14.2.1.4 (10BASE-T) of IEEE standard 802.3
               defines a collision as the simultaneous presence of signals
               on the DO and RD circuits (transmitting and receiving
               at the same time).  A 10BASE-T station can only detect
               collisions when it is transmitting.  Thus probes placed on
               a station and a repeater, should report the same number of
               collisions.
               
               Note also that an RMON probe inside a repeater should
               ideally report collisions between the repeater and one or
               more other hosts (transmit collisions as defined by IEEE
               802.3k) plus receiver collisions observed on any coax
               segments to which the repeater is connected.";
        }

        leaf etherHistoryUtilization {
          smi:oid "1.3.6.1.2.1.16.2.2.1.15";
          type int32 {
            range "0..10000";
          }
          config false;
          description
            "The best estimate of the mean physical layer
               network utilization on this interface during this
               sampling interval, in hundredths of a percent.";
        }
      }  // list etherHistoryEntry
    }  // container history

    container alarm {
      smi:oid "1.3.6.1.2.1.16.3";
      list alarmEntry {
        smi:oid "1.3.6.1.2.1.16.3.1.1";
        key "alarmIndex";
        description
          "A list of parameters that set up a periodic checking
            for alarm conditions.  For example, an instance of the
            alarmValue object might be named alarmValue.8";
        leaf alarmIndex {
          smi:oid "1.3.6.1.2.1.16.3.1.1.1";
          type int32 {
            range "1..65535";
          }
          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.";
        }

        leaf alarmInterval {
          smi:oid "1.3.6.1.2.1.16.3.1.1.2";
          type int32;
          units "Seconds";
          description
            "The interval in seconds over which the data is
               sampled and compared with the rising and falling
               thresholds.  When setting this variable, care
               should be taken in the case of deltaValue
               sampling - the interval should be set short enough
               that the sampled variable is very unlikely to
               increase or decrease by more than 2^31 - 1 during
               a single sampling interval.
               
               This object may not be modified if the associated
               alarmStatus object is equal to valid(1).";
        }

        leaf alarmVariable {
          smi:oid "1.3.6.1.2.1.16.3.1.1.3";
          type yang:object-identifier;
          description
            "The object identifier of the particular variable to be
               sampled.  Only variables that resolve to an ASN.1 primitive
               type of INTEGER (INTEGER, Integer32, Counter32, Counter64,
               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).";
        }

        leaf alarmSampleType {
          smi:oid "1.3.6.1.2.1.16.3.1.1.4";
          type enumeration {
            enum "absoluteValue" {
              value 1;
            }
            enum "deltaValue" {
              value 2;
            }
          }
          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).";
        }

        leaf alarmValue {
          smi:oid "1.3.6.1.2.1.16.3.1.1.5";
          type int32;
          config false;
          description
            "The value of the statistic during the last sampling
               period.  For example, if the sample type is deltaValue,
               this value will be the difference between the samples
               at the beginning and end of the period.  If the sample
               type is absoluteValue, this value will be the sampled
               value at the end of the period.
               
               This is the value that is compared with the rising and
               falling thresholds.
               
               The value during the current sampling period is not
               made available until the period is completed and will
               remain available until the next period completes.";
        }

        leaf alarmStartupAlarm {
          smi:oid "1.3.6.1.2.1.16.3.1.1.6";
          type enumeration {
            enum "risingAlarm" {
              value 1;
            }
            enum "fallingAlarm" {
              value 2;
            }
            enum "risingOrFallingAlarm" {
              value 3;
            }
          }
          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).";
        }

        leaf alarmRisingThreshold {
          smi:oid "1.3.6.1.2.1.16.3.1.1.7";
          type int32;
          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).";
        }

        leaf alarmFallingThreshold {
          smi:oid "1.3.6.1.2.1.16.3.1.1.8";
          type int32;
          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).";
        }

        leaf alarmRisingEventIndex {
          smi:oid "1.3.6.1.2.1.16.3.1.1.9";
          type int32 {
            range "0..65535";
          }
          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).";
        }

        leaf alarmFallingEventIndex {
          smi:oid "1.3.6.1.2.1.16.3.1.1.10";
          type int32 {
            range "0..65535";
          }
          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).";
        }

        leaf alarmOwner {
          smi:oid "1.3.6.1.2.1.16.3.1.1.11";
          type OwnerString;
          description
            "The entity that configured this entry and is therefore
               using the resources assigned to it.";
        }

        leaf alarmStatus {
          smi:oid "1.3.6.1.2.1.16.3.1.1.12";
          type EntryStatus;
          description
            "The status of this alarm entry.";
        }
      }  // list alarmEntry
    }  // container alarm

    container hosts {
      smi:oid "1.3.6.1.2.1.16.4";
      list hostControlEntry {
        smi:oid "1.3.6.1.2.1.16.4.1.1";
        key "hostControlIndex";
        description
          "A list of parameters that set up the discovery of hosts
            on a particular interface and the collection of statistics
            about these hosts.  For example, an instance of the
            hostControlTableSize object might be named
            hostControlTableSize.1";
        leaf hostControlIndex {
          smi:oid "1.3.6.1.2.1.16.4.1.1.1";
          type int32 {
            range "1..65535";
          }
          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.";
        }

        leaf hostControlDataSource {
          smi:oid "1.3.6.1.2.1.16.4.1.1.2";
          type yang:object-identifier;
          description
            "This object identifies the source of the data for
               this instance of the host function.  This source
               can be any interface on this device.  In order
               to identify a particular interface, this object shall
               identify the instance of the ifIndex object, defined
               in RFC 2233 [17], for the desired interface.
               For example, if an entry were to receive data from
               interface #1, this object would be set to ifIndex.1.
               
               The statistics in this group reflect all packets
               on the local network segment attached to the identified
               interface.
               
               An agent may or may not be able to tell if fundamental
               changes to the media of the interface have occurred and
               necessitate an invalidation of this entry.  For example, a
               hot-pluggable ethernet card could be pulled out and replaced
               by a token-ring card.  In such a case, if the agent has such
               knowledge of the change, it is recommended that it
               invalidate this entry.
               
               This object may not be modified if the associated
               hostControlStatus object is equal to valid(1).";
        }

        leaf hostControlTableSize {
          smi:oid "1.3.6.1.2.1.16.4.1.1.3";
          type int32;
          config false;
          description
            "The number of hostEntries in the hostTable and the
               hostTimeTable associated with this hostControlEntry.";
        }

        leaf hostControlLastDeleteTime {
          smi:oid "1.3.6.1.2.1.16.4.1.1.4";
          type yang:timeticks;
          config false;
          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.";
        }

        leaf hostControlOwner {
          smi:oid "1.3.6.1.2.1.16.4.1.1.5";
          type OwnerString;
          description
            "The entity that configured this entry and is therefore
               using the resources assigned to it.";
        }

        leaf hostControlStatus {
          smi:oid "1.3.6.1.2.1.16.4.1.1.6";
          type EntryStatus;
          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.";
        }
      }  // list hostControlEntry

      list hostEntry {
        smi:oid "1.3.6.1.2.1.16.4.2.1";
        key "hostIndex hostAddress";
        description
          "A collection of statistics for a particular host that has
            been discovered on an interface of this device.  For example,
            an instance of the hostOutBroadcastPkts object might be
            named hostOutBroadcastPkts.1.6.8.0.32.27.3.176";
        leaf hostAddress {
          smi:oid "1.3.6.1.2.1.16.4.2.1.1";
          type binary;
          description
            "The physical address of this host.";
        }

        leaf hostCreationOrder {
          smi:oid "1.3.6.1.2.1.16.4.2.1.2";
          type int32 {
            range "1..65535";
          }
          config false;
          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.";
        }

        leaf hostIndex {
          smi:oid "1.3.6.1.2.1.16.4.2.1.3";
          type int32 {
            range "1..65535";
          }
          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.";
        }

        leaf hostInPkts {
          smi:oid "1.3.6.1.2.1.16.4.2.1.4";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The number of good packets transmitted to this
               address since it was added to the hostTable.";
        }

        leaf hostOutPkts {
          smi:oid "1.3.6.1.2.1.16.4.2.1.5";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The number of packets, including bad packets, transmitted
               by this address since it was added to the hostTable.";
        }

        leaf hostInOctets {
          smi:oid "1.3.6.1.2.1.16.4.2.1.6";
          type yang:counter32;
          units "Octets";
          config false;
          description
            "The number of octets transmitted to this address since
               it was added to the hostTable (excluding framing
               bits but including FCS octets), except for those
               octets in bad packets.";
        }

        leaf hostOutOctets {
          smi:oid "1.3.6.1.2.1.16.4.2.1.7";
          type yang:counter32;
          units "Octets";
          config false;
          description
            "The number of octets transmitted by this address since
               it was added to the hostTable (excluding framing
               bits but including FCS octets), including those
               octets in bad packets.";
        }

        leaf hostOutErrors {
          smi:oid "1.3.6.1.2.1.16.4.2.1.8";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The number of bad packets transmitted by this address
               since this host was added to the hostTable.";
        }

        leaf hostOutBroadcastPkts {
          smi:oid "1.3.6.1.2.1.16.4.2.1.9";
          type yang:counter32;
          units "Packets";
          config false;
          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.";
        }

        leaf hostOutMulticastPkts {
          smi:oid "1.3.6.1.2.1.16.4.2.1.10";
          type yang:counter32;
          units "Packets";
          config false;
          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.";
        }
      }  // list hostEntry

      list hostTimeEntry {
        smi:oid "1.3.6.1.2.1.16.4.3.1";
        key "hostTimeIndex hostTimeCreationOrder";
        description
          "A collection of statistics for a particular host that has
            been discovered on an interface of this device.  This
            collection includes the relative ordering of the creation
            time of this object.  For example, an instance of the
            hostTimeOutBroadcastPkts object might be named
            hostTimeOutBroadcastPkts.1.687";
        leaf hostTimeAddress {
          smi:oid "1.3.6.1.2.1.16.4.3.1.1";
          type binary;
          config false;
          description
            "The physical address of this host.";
        }

        leaf hostTimeCreationOrder {
          smi:oid "1.3.6.1.2.1.16.4.3.1.2";
          type int32 {
            range "1..65535";
          }
          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.";
        }

        leaf hostTimeIndex {
          smi:oid "1.3.6.1.2.1.16.4.3.1.3";
          type int32 {
            range "1..65535";
          }
          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.";
        }

        leaf hostTimeInPkts {
          smi:oid "1.3.6.1.2.1.16.4.3.1.4";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The number of good packets transmitted to this
               address since it was added to the hostTimeTable.";
        }

        leaf hostTimeOutPkts {
          smi:oid "1.3.6.1.2.1.16.4.3.1.5";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The number of packets, including bad packets, transmitted
               by this address since it was added to the hostTimeTable.";
        }

        leaf hostTimeInOctets {
          smi:oid "1.3.6.1.2.1.16.4.3.1.6";
          type yang:counter32;
          units "Octets";
          config false;
          description
            "The number of octets transmitted to this address since
               it was added to the hostTimeTable (excluding framing
               bits but including FCS octets), except for those
               octets in bad packets.";
        }

        leaf hostTimeOutOctets {
          smi:oid "1.3.6.1.2.1.16.4.3.1.7";
          type yang:counter32;
          units "Octets";
          config false;
          description
            "The number of octets transmitted by this address since
               it was added to the hostTimeTable (excluding framing
               bits but including FCS octets), including those
               octets in bad packets.";
        }

        leaf hostTimeOutErrors {
          smi:oid "1.3.6.1.2.1.16.4.3.1.8";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The number of bad packets transmitted by this address
               since this host was added to the hostTimeTable.";
        }

        leaf hostTimeOutBroadcastPkts {
          smi:oid "1.3.6.1.2.1.16.4.3.1.9";
          type yang:counter32;
          units "Packets";
          config false;
          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.";
        }

        leaf hostTimeOutMulticastPkts {
          smi:oid "1.3.6.1.2.1.16.4.3.1.10";
          type yang:counter32;
          units "Packets";
          config false;
          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.";
        }
      }  // list hostTimeEntry
    }  // container hosts

    container hostTopN {
      smi:oid "1.3.6.1.2.1.16.5";
      list hostTopNControlEntry {
        smi:oid "1.3.6.1.2.1.16.5.1.1";
        key "hostTopNControlIndex";
        description
          "A set of parameters that control the creation of a report
            of the top N hosts according to several metrics.  For
            example, an instance of the hostTopNDuration object might
            be named hostTopNDuration.3";
        leaf hostTopNControlIndex {
          smi:oid "1.3.6.1.2.1.16.5.1.1.1";
          type int32 {
            range "1..65535";
          }
          description
            "An index that uniquely identifies an entry
               in the hostTopNControl table.  Each such
               entry defines one top N report prepared for
               one interface.";
        }

        leaf hostTopNHostIndex {
          smi:oid "1.3.6.1.2.1.16.5.1.1.2";
          type int32 {
            range "1..65535";
          }
          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).";
        }

        leaf hostTopNRateBase {
          smi:oid "1.3.6.1.2.1.16.5.1.1.3";
          type enumeration {
            enum "hostTopNInPkts" {
              value 1;
            }
            enum "hostTopNOutPkts" {
              value 2;
            }
            enum "hostTopNInOctets" {
              value 3;
            }
            enum "hostTopNOutOctets" {
              value 4;
            }
            enum "hostTopNOutErrors" {
              value 5;
            }
            enum "hostTopNOutBroadcastPkts" {
              value 6;
            }
            enum "hostTopNOutMulticastPkts" {
              value 7;
            }
          }
          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).";
        }

        leaf hostTopNTimeRemaining {
          smi:default "0";
          smi:oid "1.3.6.1.2.1.16.5.1.1.4";
          type int32;
          units "Seconds";
          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.";
        }

        leaf hostTopNDuration {
          smi:default "0";
          smi:oid "1.3.6.1.2.1.16.5.1.1.5";
          type int32;
          units "Seconds";
          config false;
          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.";
        }

        leaf hostTopNRequestedSize {
          smi:default "10";
          smi:oid "1.3.6.1.2.1.16.5.1.1.6";
          type int32;
          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.";
        }

        leaf hostTopNGrantedSize {
          smi:oid "1.3.6.1.2.1.16.5.1.1.7";
          type int32;
          config false;
          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.";
        }

        leaf hostTopNStartTime {
          smi:oid "1.3.6.1.2.1.16.5.1.1.8";
          type yang:timeticks;
          config false;
          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.";
        }

        leaf hostTopNOwner {
          smi:oid "1.3.6.1.2.1.16.5.1.1.9";
          type OwnerString;
          description
            "The entity that configured this entry and is therefore
               using the resources assigned to it.";
        }

        leaf hostTopNStatus {
          smi:oid "1.3.6.1.2.1.16.5.1.1.10";
          type EntryStatus;
          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.";
        }
      }  // list hostTopNControlEntry

      list hostTopNEntry {
        smi:oid "1.3.6.1.2.1.16.5.2.1";
        key "hostTopNReport hostTopNIndex";
        description
          "A set of statistics for a host that is part of a top N
            report.  For example, an instance of the hostTopNRate
            object might be named hostTopNRate.3.10";
        leaf hostTopNReport {
          smi:oid "1.3.6.1.2.1.16.5.2.1.1";
          type int32 {
            range "1..65535";
          }
          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.";
        }

        leaf hostTopNIndex {
          smi:oid "1.3.6.1.2.1.16.5.2.1.2";
          type int32 {
            range "1..65535";
          }
          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.";
        }

        leaf hostTopNAddress {
          smi:oid "1.3.6.1.2.1.16.5.2.1.3";
          type binary;
          config false;
          description
            "The physical address of this host.";
        }

        leaf hostTopNRate {
          smi:oid "1.3.6.1.2.1.16.5.2.1.4";
          type int32;
          config false;
          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.";
        }
      }  // list hostTopNEntry
    }  // container hostTopN

    container matrix {
      smi:oid "1.3.6.1.2.1.16.6";
      list matrixControlEntry {
        smi:oid "1.3.6.1.2.1.16.6.1.1";
        key "matrixControlIndex";
        description
          "Information about a traffic matrix on a particular
            
            interface.  For example, an instance of the
            matrixControlLastDeleteTime object might be named
            matrixControlLastDeleteTime.1";
        leaf matrixControlIndex {
          smi:oid "1.3.6.1.2.1.16.6.1.1.1";
          type int32 {
            range "1..65535";
          }
          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.";
        }

        leaf matrixControlDataSource {
          smi:oid "1.3.6.1.2.1.16.6.1.1.2";
          type yang:object-identifier;
          description
            "This object identifies the source of
               the data from which this entry creates a traffic matrix.
               This source can be any interface on this device.  In
               order to identify a particular interface, this object
               shall identify the instance of the ifIndex object,
               defined in RFC 2233 [17], for the desired
               interface.  For example, if an entry were to receive data
               from interface #1, this object would be set to ifIndex.1.
               
               The statistics in this group reflect all packets
               on the local network segment attached to the identified
               interface.
               
               An agent may or may not be able to tell if fundamental
               changes to the media of the interface have occurred and
               
               necessitate an invalidation of this entry.  For example, a
               hot-pluggable ethernet card could be pulled out and replaced
               by a token-ring card.  In such a case, if the agent has such
               knowledge of the change, it is recommended that it
               invalidate this entry.
               
               This object may not be modified if the associated
               matrixControlStatus object is equal to valid(1).";
        }

        leaf matrixControlTableSize {
          smi:oid "1.3.6.1.2.1.16.6.1.1.3";
          type int32;
          config false;
          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.";
        }

        leaf matrixControlLastDeleteTime {
          smi:oid "1.3.6.1.2.1.16.6.1.1.4";
          type yang:timeticks;
          config false;
          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.";
        }

        leaf matrixControlOwner {
          smi:oid "1.3.6.1.2.1.16.6.1.1.5";
          type OwnerString;
          description
            "The entity that configured this entry and is therefore
               using the resources assigned to it.";
        }

        leaf matrixControlStatus {
          smi:oid "1.3.6.1.2.1.16.6.1.1.6";
          type EntryStatus;
          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.";
        }
      }  // list matrixControlEntry

      list matrixSDEntry {
        smi:oid "1.3.6.1.2.1.16.6.2.1";
        key "matrixSDIndex matrixSDSourceAddress matrixSDDestAddress";
        config false;
        description
          "A collection of statistics for communications between
            two addresses on a particular interface.  For example,
            an instance of the matrixSDPkts object might be named
            matrixSDPkts.1.6.8.0.32.27.3.176.6.8.0.32.10.8.113";
        leaf matrixSDSourceAddress {
          smi:oid "1.3.6.1.2.1.16.6.2.1.1";
          type binary;
          description
            "The source physical address.";
        }

        leaf matrixSDDestAddress {
          smi:oid "1.3.6.1.2.1.16.6.2.1.2";
          type binary;
          description
            "The destination physical address.";
        }

        leaf matrixSDIndex {
          smi:oid "1.3.6.1.2.1.16.6.2.1.3";
          type int32 {
            range "1..65535";
          }
          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.";
        }

        leaf matrixSDPkts {
          smi:oid "1.3.6.1.2.1.16.6.2.1.4";
          type yang:counter32;
          units "Packets";
          description
            "The number of packets transmitted from the source
               address to the destination address (this number includes
               bad packets).";
        }

        leaf matrixSDOctets {
          smi:oid "1.3.6.1.2.1.16.6.2.1.5";
          type yang:counter32;
          units "Octets";
          config false;
          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.";
        }

        leaf matrixSDErrors {
          smi:oid "1.3.6.1.2.1.16.6.2.1.6";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The number of bad packets transmitted from
               the source address to the destination address.";
        }
      }  // list matrixSDEntry

      list matrixDSEntry {
        smi:oid "1.3.6.1.2.1.16.6.3.1";
        key "matrixDSIndex matrixDSDestAddress matrixDSSourceAddress";
        config false;
        description
          "A collection of statistics for communications between
            two addresses on a particular interface.  For example,
            an instance of the matrixSDPkts object might be named
            matrixSDPkts.1.6.8.0.32.10.8.113.6.8.0.32.27.3.176";
        leaf matrixDSSourceAddress {
          smi:oid "1.3.6.1.2.1.16.6.3.1.1";
          type binary;
          config false;
          description
            "The source physical address.";
        }

        leaf matrixDSDestAddress {
          smi:oid "1.3.6.1.2.1.16.6.3.1.2";
          type binary;
          config false;
          description
            "The destination physical address.";
        }

        leaf matrixDSIndex {
          smi:oid "1.3.6.1.2.1.16.6.3.1.3";
          type int32 {
            range "1..65535";
          }
          config false;
          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.";
        }

        leaf matrixDSPkts {
          smi:oid "1.3.6.1.2.1.16.6.3.1.4";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The number of packets transmitted from the source
               address to the destination address (this number includes
               bad packets).";
        }

        leaf matrixDSOctets {
          smi:oid "1.3.6.1.2.1.16.6.3.1.5";
          type yang:counter32;
          units "Octets";
          config false;
          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.";
        }

        leaf matrixDSErrors {
          smi:oid "1.3.6.1.2.1.16.6.3.1.6";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The number of bad packets transmitted from
               the source address to the destination address.";
        }
      }  // list matrixDSEntry
    }  // container matrix

    container filter {
      smi:oid "1.3.6.1.2.1.16.7";
      list filterEntry {
        smi:oid "1.3.6.1.2.1.16.7.1.1";
        key "filterIndex";
        description
          "A set of parameters for a packet filter applied on a
            particular interface.  As an example, an instance of the
            filterPktData object might be named filterPktData.12";
        leaf filterIndex {
          smi:oid "1.3.6.1.2.1.16.7.1.1.1";
          type int32 {
            range "1..65535";
          }
          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.";
        }

        leaf filterChannelIndex {
          smi:oid "1.3.6.1.2.1.16.7.1.1.2";
          type int32 {
            range "1..65535";
          }
          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.";
        }

        leaf filterPktDataOffset {
          smi:default "0";
          smi:oid "1.3.6.1.2.1.16.7.1.1.3";
          type int32;
          units "Octets";
          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).";
        }

        leaf filterPktData {
          smi:oid "1.3.6.1.2.1.16.7.1.1.4";
          type binary;
          description
            "The data that is to be matched with the input packet.
               For each packet received, this filter and the accompanying
               filterPktDataMask and filterPktDataNotMask will be
               adjusted for the offset.  The only bits relevant to this
               match algorithm are those that have the corresponding
               filterPktDataMask bit equal to one.  The following three
               rules are then applied to every packet:
               
               (1) If the packet is too short and does not have data
                   corresponding to part of the filterPktData, the packet
                   will fail this data match.
               
               (2) For each relevant bit from the packet with the
                   corresponding filterPktDataNotMask bit set to zero, if
                   the bit from the packet is not equal to the corresponding
                   bit from the filterPktData, then the packet will fail
                   this data match.
               
               (3) If for every relevant bit from the packet with the
                   corresponding filterPktDataNotMask bit set to one, the
                   bit from the packet is equal to the corresponding bit
                   from the filterPktData, then the packet will fail this
                   data match.
               
               Any packets that have not failed any of the three matches
               above have passed this data match.  In particular, a zero
               length filter will match any packet.
               
               This object may not be modified if the associated
               filterStatus object is equal to valid(1).";
        }

        leaf filterPktDataMask {
          smi:oid "1.3.6.1.2.1.16.7.1.1.5";
          type binary;
          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).";
        }

        leaf filterPktDataNotMask {
          smi:oid "1.3.6.1.2.1.16.7.1.1.6";
          type binary;
          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).";
        }

        leaf filterPktStatus {
          smi:oid "1.3.6.1.2.1.16.7.1.1.7";
          type int32;
          description
            "The status that is to be matched with the input packet.
               The only bits relevant to this match algorithm are those that
               have the corresponding filterPktStatusMask bit equal to one.
               The following two rules are then applied to every packet:
               
               (1) For each relevant bit from the packet status with the
                   corresponding filterPktStatusNotMask bit set to zero, if
                   the bit from the packet status is not equal to the
               
                   corresponding bit from the filterPktStatus, then the
                   packet will fail this status match.
               
               (2) If for every relevant bit from the packet status with the
                   corresponding filterPktStatusNotMask bit set to one, the
                   bit from the packet status is equal to the corresponding
                   bit from the filterPktStatus, then the packet will fail
                   this status match.
               
               Any packets that have not failed either of the two matches
               above have passed this status match.  In particular, a zero
               length status filter will match any packet's status.
               
               The value of the packet status is a sum.  This sum
               initially takes the value zero.  Then, for each
               error, E, that has been discovered in this packet,
               2 raised to a value representing E is added to the sum.
               The errors and the bits that represent them are dependent
               on the media type of the interface that this channel
               is receiving packets from.
               
               The errors defined for a packet captured off of an
               Ethernet interface are as follows:
               
                   bit #    Error
                       0    Packet is longer than 1518 octets
                       1    Packet is shorter than 64 octets
                       2    Packet experienced a CRC or Alignment error
               
               For example, an Ethernet fragment would have a
               value of 6 (2^1 + 2^2).
               
               As this MIB is expanded to new media types, this object
               will have other media-specific errors defined.
               
               For the purposes of this status matching algorithm, if the
               packet status is longer than this filterPktStatus object,
               this object is conceptually extended with '0' bits until it
               reaches the size of the packet status.
               
               This object may not be modified if the associated
               filterStatus object is equal to valid(1).";
        }

        leaf filterPktStatusMask {
          smi:oid "1.3.6.1.2.1.16.7.1.1.8";
          type int32;
          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).";
        }

        leaf filterPktStatusNotMask {
          smi:oid "1.3.6.1.2.1.16.7.1.1.9";
          type int32;
          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).";
        }

        leaf filterOwner {
          smi:oid "1.3.6.1.2.1.16.7.1.1.10";
          type OwnerString;
          description
            "The entity that configured this entry and is therefore
               using the resources assigned to it.";
        }

        leaf filterStatus {
          smi:oid "1.3.6.1.2.1.16.7.1.1.11";
          type EntryStatus;
          description
            "The status of this filter entry.";
        }
      }  // list filterEntry

      list channelEntry {
        smi:oid "1.3.6.1.2.1.16.7.2.1";
        key "channelIndex";
        description
          "A set of parameters for a packet channel applied on a
            particular interface.  As an example, an instance of the
            channelMatches object might be named channelMatches.3";
        leaf channelIndex {
          smi:oid "1.3.6.1.2.1.16.7.2.1.1";
          type int32 {
            range "1..65535";
          }
          description
            "An index that uniquely identifies an entry in the channel
               table.  Each such entry defines one channel, a logical
               data and event stream.
               
               It is suggested that before creating a channel, an
               application should scan all instances of the
               filterChannelIndex object to make sure that there are no
               pre-existing filters that would be inadvertently be linked
               to the channel.";
        }

        leaf channelIfIndex {
          smi:oid "1.3.6.1.2.1.16.7.2.1.2";
          type int32 {
            range "1..65535";
          }
          description
            "The value of this object uniquely identifies the
               interface on this remote network monitoring device to which
               the associated filters are applied to allow data into this
               channel.  The interface identified by a particular value
               of this object is the same interface as identified by the
               same value of the ifIndex object, defined in RFC 2233 [17].
               
               The filters in this group are applied to all packets on
               the local network segment attached to the identified
               interface.
               
               An agent may or may not be able to tell if fundamental
               changes to the media of the interface have occurred and
               necessitate an invalidation of this entry.  For example, a
               hot-pluggable ethernet card could be pulled out and replaced
               by a token-ring card.  In such a case, if the agent has such
               knowledge of the change, it is recommended that it
               invalidate this entry.
               
               This object may not be modified if the associated
               channelStatus object is equal to valid(1).";
        }

        leaf channelAcceptType {
          smi:oid "1.3.6.1.2.1.16.7.2.1.3";
          type enumeration {
            enum "acceptMatched" {
              value 1;
            }
            enum "acceptFailed" {
              value 2;
            }
          }
          description
            "This object controls the action of the filters
               associated with this channel.  If this object is equal
               to acceptMatched(1), packets will be accepted to this
               channel if they are accepted by both the packet data and
               packet status matches of an associated filter.  If
               this object is equal to acceptFailed(2), packets will
               be accepted to this channel only if they fail either
               the packet data match or the packet status match of
               each of the associated filters.
               
               In particular, a channel with no associated filters will
               match no packets if set to acceptMatched(1) case and will
               match all packets in the acceptFailed(2) case.
               
               This object may not be modified if the associated
               channelStatus object is equal to valid(1).";
        }

        leaf channelDataControl {
          smi:default "off";
          smi:oid "1.3.6.1.2.1.16.7.2.1.4";
          type enumeration {
            enum "on" {
              value 1;
            }
            enum "off" {
              value 2;
            }
          }
          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.";
        }

        leaf channelTurnOnEventIndex {
          smi:oid "1.3.6.1.2.1.16.7.2.1.5";
          type int32 {
            range "0..65535";
          }
          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).";
        }

        leaf channelTurnOffEventIndex {
          smi:oid "1.3.6.1.2.1.16.7.2.1.6";
          type int32 {
            range "0..65535";
          }
          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).";
        }

        leaf channelEventIndex {
          smi:oid "1.3.6.1.2.1.16.7.2.1.7";
          type int32 {
            range "0..65535";
          }
          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).";
        }

        leaf channelEventStatus {
          smi:default "eventReady";
          smi:oid "1.3.6.1.2.1.16.7.2.1.8";
          type enumeration {
            enum "eventReady" {
              value 1;
            }
            enum "eventFired" {
              value 2;
            }
            enum "eventAlwaysReady" {
              value 3;
            }
          }
          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.";
        }

        leaf channelMatches {
          smi:oid "1.3.6.1.2.1.16.7.2.1.9";
          type yang:counter32;
          units "Packets";
          config false;
          description
            "The number of times this channel has matched a packet.
               Note that this object is updated even when
               channelDataControl is set to off.";
        }

        leaf channelDescription {
          smi:oid "1.3.6.1.2.1.16.7.2.1.10";
          type smiv2:DisplayString {
            length "0..127";
          }
          description
            "A comment describing this channel.";
        }

        leaf channelOwner {
          smi:oid "1.3.6.1.2.1.16.7.2.1.11";
          type OwnerString;
          description
            "The entity that configured this entry and is therefore
               using the resources assigned to it.";
        }

        leaf channelStatus {
          smi:oid "1.3.6.1.2.1.16.7.2.1.12";
          type EntryStatus;
          description
            "The status of this channel entry.";
        }
      }  // list channelEntry
    }  // container filter

    container capture {
      smi:oid "1.3.6.1.2.1.16.8";
      list bufferControlEntry {
        smi:oid "1.3.6.1.2.1.16.8.1.1";
        key "bufferControlIndex";
        description
          "A set of parameters that control the collection of a stream
            of packets that have matched filters.  As an example, an
            instance of the bufferControlCaptureSliceSize object might
            be named bufferControlCaptureSliceSize.3";
        leaf bufferControlIndex {
          smi:oid "1.3.6.1.2.1.16.8.1.1.1";
          type int32 {
            range "1..65535";
          }
          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.";
        }

        leaf bufferControlChannelIndex {
          smi:oid "1.3.6.1.2.1.16.8.1.1.2";
          type int32 {
            range "1..65535";
          }
          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).";
        }

        leaf bufferControlFullStatus {
          smi:oid "1.3.6.1.2.1.16.8.1.1.3";
          type enumeration {
            enum "spaceAvailable" {
              value 1;
            }
            enum "full" {
              value 2;
            }
          }
          config false;
          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.";
        }

        leaf bufferControlFullAction {
          smi:oid "1.3.6.1.2.1.16.8.1.1.4";
          type enumeration {
            enum "lockWhenFull" {
              value 1;
            }
            enum "wrapWhenFull" {
              value 2;
            }
          }
          description
            "Controls the action of the buffer when it
               reaches the full status.  When in the lockWhenFull(1)
               state and a packet is added to the buffer that
               fills the buffer, the bufferControlFullStatus will
               be set to full(2) and this buffer will stop capturing
               packets.";
        }

        leaf bufferControlCaptureSliceSize {
          smi:default "100";
          smi:oid "1.3.6.1.2.1.16.8.1.1.5";
          type int32;
          units "Octets";
          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).";
        }

        leaf bufferControlDownloadSliceSize {
          smi:default "100";
          smi:oid "1.3.6.1.2.1.16.8.1.1.6";
          type int32;
          units "Octets";
          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.";
        }

        leaf bufferControlDownloadOffset {
          smi:default "0";
          smi:oid "1.3.6.1.2.1.16.8.1.1.7";
          type int32;
          units "Octets";
          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.";
        }

        leaf bufferControlMaxOctetsRequested {
          smi:default "-1";
          smi:oid "1.3.6.1.2.1.16.8.1.1.8";
          type int32;
          units "Octets";
          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.";
        }

        leaf bufferControlMaxOctetsGranted {
          smi:oid "1.3.6.1.2.1.16.8.1.1.9";
          type int32;
          units "Octets";
          config false;
          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.";
        }

        leaf bufferControlCapturedPackets {
          smi:oid "1.3.6.1.2.1.16.8.1.1.10";
          type int32;
          units "Packets";
          config false;
          description
            "The number of packets currently in this captureBuffer.";
        }

        leaf bufferControlTurnOnTime {
          smi:oid "1.3.6.1.2.1.16.8.1.1.11";
          type yang:timeticks;
          config false;
          description
            "The value of sysUpTime when this capture buffer was
               first turned on.";
        }

        leaf bufferControlOwner {
          smi:oid "1.3.6.1.2.1.16.8.1.1.12";
          type OwnerString;
          description
            "The entity that configured this entry and is therefore
               using the resources assigned to it.";
        }

        leaf bufferControlStatus {
          smi:oid "1.3.6.1.2.1.16.8.1.1.13";
          type EntryStatus;
          description
            "The status of this buffer Control Entry.";
        }
      }  // list bufferControlEntry

      list captureBufferEntry {
        smi:oid "1.3.6.1.2.1.16.8.2.1";
        key "captureBufferControlIndex captureBufferIndex";
        description
          "A packet captured off of an attached network.  As an
            example, an instance of the captureBufferPacketData
            object might be named captureBufferPacketData.3.1783";
        leaf captureBufferControlIndex {
          smi:oid "1.3.6.1.2.1.16.8.2.1.1";
          type int32 {
            range "1..65535";
          }
          description
            "The index of the bufferControlEntry with which
               this packet is associated.";
        }

        leaf captureBufferIndex {
          smi:oid "1.3.6.1.2.1.16.8.2.1.2";
          type int32 {
            range "1..2147483647";
          }
          description
            "An index that uniquely identifies an entry
               in the captureBuffer table associated with a
               particular bufferControlEntry.  This index will
               start at 1 and increase by one for each new packet
               added with the same captureBufferControlIndex.
               
               Should this value reach 2147483647, the next packet
               added with the same captureBufferControlIndex shall
               cause this value to wrap around to 1.";
        }

        leaf captureBufferPacketID {
          smi:oid "1.3.6.1.2.1.16.8.2.1.3";
          type int32;
          config false;
          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.";
        }

        leaf captureBufferPacketData {
          smi:oid "1.3.6.1.2.1.16.8.2.1.4";
          type binary;
          config false;
          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.";
        }

        leaf captureBufferPacketLength {
          smi:oid "1.3.6.1.2.1.16.8.2.1.5";
          type int32;
          units "Octets";
          config false;
          description
            "The actual length (off the wire) of the packet stored
               in this entry, including FCS octets.";
        }

        leaf captureBufferPacketTime {
          smi:oid "1.3.6.1.2.1.16.8.2.1.6";
          type int32;
          units "Milliseconds";
          config false;
          description
            "The number of milliseconds that had passed since
               this capture buffer was first turned on when this
               packet was captured.";
        }

        leaf captureBufferPacketStatus {
          smi:oid "1.3.6.1.2.1.16.8.2.1.7";
          type int32;
          config false;
          description
            "A value which indicates the error status of this packet.
               
               The value of this object is defined in the same way as
               filterPktStatus.  The value is a sum.  This sum
               initially takes the value zero.  Then, for each
               error, E, that has been discovered in this packet,
               2 raised to a value representing E is added to the sum.
               
               The errors defined for a packet captured off of an
               Ethernet interface are as follows:
               
                   bit #    Error
                       0    Packet is longer than 1518 octets
               
                       1    Packet is shorter than 64 octets
                       2    Packet experienced a CRC or Alignment error
                       3    First packet in this capture buffer after
                            it was detected that some packets were
                            not processed correctly.
                       4    Packet's order in buffer is only approximate
                            (May only be set for packets sent from
                            the probe)
               
               For example, an Ethernet fragment would have a
               value of 6 (2^1 + 2^2).
               
               As this MIB is expanded to new media types, this object
               will have other media-specific errors defined.";
        }
      }  // list captureBufferEntry
    }  // container capture

    container event {
      smi:oid "1.3.6.1.2.1.16.9";
      list eventEntry {
        smi:oid "1.3.6.1.2.1.16.9.1.1";
        key "eventIndex";
        description
          "A set of parameters that describe an event to be generated
            when certain conditions are met.  As an example, an instance
            of the eventLastTimeSent object might be named
            eventLastTimeSent.6";
        leaf eventIndex {
          smi:oid "1.3.6.1.2.1.16.9.1.1.1";
          type int32 {
            range "1..65535";
          }
          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.";
        }

        leaf eventDescription {
          smi:oid "1.3.6.1.2.1.16.9.1.1.2";
          type smiv2:DisplayString {
            length "0..127";
          }
          description
            "A comment describing this event entry.";
        }

        leaf eventType {
          smi:oid "1.3.6.1.2.1.16.9.1.1.3";
          type enumeration {
            enum "none" {
              value 1;
            }
            enum "log" {
              value 2;
            }
            enum "snmptrap" {
              value 3;
            }
            enum "logandtrap" {
              value 4;
            }
          }
          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.";
        }

        leaf eventCommunity {
          smi:oid "1.3.6.1.2.1.16.9.1.1.4";
          type binary {
            length "0..127";
          }
          description
            "If an SNMP trap is to be sent, it will be sent to
               the SNMP community specified by this octet string.";
        }

        leaf eventLastTimeSent {
          smi:oid "1.3.6.1.2.1.16.9.1.1.5";
          type yang:timeticks;
          config false;
          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.";
        }

        leaf eventOwner {
          smi:oid "1.3.6.1.2.1.16.9.1.1.6";
          type OwnerString;
          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";
        }

        leaf eventStatus {
          smi:oid "1.3.6.1.2.1.16.9.1.1.7";
          type EntryStatus;
          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.";
        }
      }  // list eventEntry

      list logEntry {
        smi:oid "1.3.6.1.2.1.16.9.2.1";
        key "logEventIndex logIndex";
        description
          "A set of data describing an event that has been
            logged.  For example, an instance of the logDescription
            object might be named logDescription.6.47";
        leaf logEventIndex {
          smi:oid "1.3.6.1.2.1.16.9.2.1.1";
          type int32 {
            range "1..65535";
          }
          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.";
        }

        leaf logIndex {
          smi:oid "1.3.6.1.2.1.16.9.2.1.2";
          type int32 {
            range "1..2147483647";
          }
          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.";
        }

        leaf logTime {
          smi:oid "1.3.6.1.2.1.16.9.2.1.3";
          type yang:timeticks;
          config false;
          description
            "The value of sysUpTime when this log entry was created.";
        }

        leaf logDescription {
          smi:oid "1.3.6.1.2.1.16.9.2.1.4";
          type smiv2:DisplayString {
            length "0..255";
          }
          config false;
          description
            "An implementation dependent description of the
               event that activated this log entry.";
        }
      }  // list logEntry
    }  // container event

    notification risingAlarm {
      smi:oid "1.3.6.1.2.1.16.0.1";
      description
        "The SNMP trap that is generated when an alarm
         entry crosses its rising threshold and generates
         an event that is configured for sending SNMP
         traps.";
      container risingAlarm-alarmIndex {
        leaf alarmIndex {
          type leafref {
            path "/rmon-mib:alarm/rmon-mib:alarmEntry/rmon-mib:alarmIndex";
          }
          config false;
          description
            "Automagically generated leafref leaf.";
        }
      }  // container risingAlarm-alarmIndex

      container risingAlarm-alarmVariable {
        leaf alarmIndex {
          type leafref {
            path "/rmon-mib:alarm/rmon-mib:alarmEntry/rmon-mib:alarmIndex";
          }
          config false;
          description
            "Automagically generated leafref leaf.";
        }

        leaf alarmVariable {
          smi:oid "1.3.6.1.2.1.16.3.1.1.3";
          type yang:object-identifier;
          config false;
          description
            "The object identifier of the particular variable to be
               sampled.  Only variables that resolve to an ASN.1 primitive
               type of INTEGER (INTEGER, Integer32, Counter32, Counter64,
               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).";
        }
      }  // container risingAlarm-alarmVariable

      container risingAlarm-alarmSampleType {
        leaf alarmIndex {
          type leafref {
            path "/rmon-mib:alarm/rmon-mib:alarmEntry/rmon-mib:alarmIndex";
          }
          config false;
          description
            "Automagically generated leafref leaf.";
        }

        leaf alarmSampleType {
          smi:oid "1.3.6.1.2.1.16.3.1.1.4";
          type enumeration {
            enum "absoluteValue" {
              value 1;
            }
            enum "deltaValue" {
              value 2;
            }
          }
          config false;
          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).";
        }
      }  // container risingAlarm-alarmSampleType

      container risingAlarm-alarmValue {
        leaf alarmIndex {
          type leafref {
            path "/rmon-mib:alarm/rmon-mib:alarmEntry/rmon-mib:alarmIndex";
          }
          config false;
          description
            "Automagically generated leafref leaf.";
        }

        leaf alarmValue {
          smi:oid "1.3.6.1.2.1.16.3.1.1.5";
          type int32;
          config false;
          description
            "The value of the statistic during the last sampling
               period.  For example, if the sample type is deltaValue,
               this value will be the difference between the samples
               at the beginning and end of the period.  If the sample
               type is absoluteValue, this value will be the sampled
               value at the end of the period.
               
               This is the value that is compared with the rising and
               falling thresholds.
               
               The value during the current sampling period is not
               made available until the period is completed and will
               remain available until the next period completes.";
        }
      }  // container risingAlarm-alarmValue

      container risingAlarm-alarmRisingThreshold {
        leaf alarmIndex {
          type leafref {
            path "/rmon-mib:alarm/rmon-mib:alarmEntry/rmon-mib:alarmIndex";
          }
          config false;
          description
            "Automagically generated leafref leaf.";
        }

        leaf alarmRisingThreshold {
          smi:oid "1.3.6.1.2.1.16.3.1.1.7";
          type int32;
          config false;
          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).";
        }
      }  // container risingAlarm-alarmRisingThreshold
    }  // notification risingAlarm

    notification fallingAlarm {
      smi:oid "1.3.6.1.2.1.16.0.2";
      description
        "The SNMP trap that is generated when an alarm
         entry crosses its falling threshold and generates
         an event that is configured for sending SNMP
         traps.";
      container fallingAlarm-alarmIndex {
        leaf alarmIndex {
          type leafref {
            path "/rmon-mib:alarm/rmon-mib:alarmEntry/rmon-mib:alarmIndex";
          }
          config false;
          description
            "Automagically generated leafref leaf.";
        }
      }  // container fallingAlarm-alarmIndex

      container fallingAlarm-alarmVariable {
        leaf alarmIndex {
          type leafref {
            path "/rmon-mib:alarm/rmon-mib:alarmEntry/rmon-mib:alarmIndex";
          }
          config false;
          description
            "Automagically generated leafref leaf.";
        }

        leaf alarmVariable {
          smi:oid "1.3.6.1.2.1.16.3.1.1.3";
          type yang:object-identifier;
          config false;
          description
            "The object identifier of the particular variable to be
               sampled.  Only variables that resolve to an ASN.1 primitive
               type of INTEGER (INTEGER, Integer32, Counter32, Counter64,
               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).";
        }
      }  // container fallingAlarm-alarmVariable

      container fallingAlarm-alarmSampleType {
        leaf alarmIndex {
          type leafref {
            path "/rmon-mib:alarm/rmon-mib:alarmEntry/rmon-mib:alarmIndex";
          }
          config false;
          description
            "Automagically generated leafref leaf.";
        }

        leaf alarmSampleType {
          smi:oid "1.3.6.1.2.1.16.3.1.1.4";
          type enumeration {
            enum "absoluteValue" {
              value 1;
            }
            enum "deltaValue" {
              value 2;
            }
          }
          config false;
          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).";
        }
      }  // container fallingAlarm-alarmSampleType

      container fallingAlarm-alarmValue {
        leaf alarmIndex {
          type leafref {
            path "/rmon-mib:alarm/rmon-mib:alarmEntry/rmon-mib:alarmIndex";
          }
          config false;
          description
            "Automagically generated leafref leaf.";
        }

        leaf alarmValue {
          smi:oid "1.3.6.1.2.1.16.3.1.1.5";
          type int32;
          config false;
          description
            "The value of the statistic during the last sampling
               period.  For example, if the sample type is deltaValue,
               this value will be the difference between the samples
               at the beginning and end of the period.  If the sample
               type is absoluteValue, this value will be the sampled
               value at the end of the period.
               
               This is the value that is compared with the rising and
               falling thresholds.
               
               The value during the current sampling period is not
               made available until the period is completed and will
               remain available until the next period completes.";
        }
      }  // container fallingAlarm-alarmValue

      container fallingAlarm-alarmFallingThreshold {
        leaf alarmIndex {
          type leafref {
            path "/rmon-mib:alarm/rmon-mib:alarmEntry/rmon-mib:alarmIndex";
          }
          config false;
          description
            "Automagically generated leafref leaf.";
        }

        leaf alarmFallingThreshold {
          smi:oid "1.3.6.1.2.1.16.3.1.1.8";
          type int32;
          config false;
          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).";
        }
      }  // container fallingAlarm-alarmFallingThreshold
    }  // notification fallingAlarm
  }  // module RMON-MIB