-- *********************************************************************
--
--    The Network Time Protocol Version 4
--    Management Information Base (MIB)
--
--    Authors: Heiko Gerstung ([email protected])
--             Chris Elliott ([email protected])
--
--    for the Internet Engineering Task Force (IETF)
--    NTP Working Group (ntpwg)
--
--
-- *********************************************************************
--   Rev 1.00
--         Published as RFC 5907
--
-- *********************************************************************

NTPv4-MIB DEFINITIONS ::= BEGIN

IMPORTS
   MODULE-IDENTITY, OBJECT-TYPE , mib-2, Integer32, NOTIFICATION-TYPE,
   Unsigned32, Counter32, TimeTicks
       FROM SNMPv2-SMI -- RFC 2578
   MODULE-COMPLIANCE, OBJECT-GROUP, NOTIFICATION-GROUP
       FROM SNMPv2-CONF -- RFC 2580
   DisplayString, TEXTUAL-CONVENTION
       FROM SNMPv2-TC -- RFC 2579
   InetAddressType, InetAddress
       FROM INET-ADDRESS-MIB -- RFC 4001
   Utf8String
       FROM SYSAPPL-MIB; -- RFC 2287

ntpSnmpMIB MODULE-IDENTITY
   LAST-UPDATED "201005170000Z" -- May 17, 2010
   ORGANIZATION "The IETF NTP Working Group (ntpwg)"
   CONTACT-INFO
           "     WG Email: [email protected]
                 Subscribe:
                  https://lists.ntp.isc.org/mailman/listinfo/ntpwg

                 Heiko Gerstung
                 Meinberg Funkuhren Gmbh & Co. KG
                 Lange Wand 9
                 Bad Pyrmont  31812
                 Germany

                 Phone: +49 5281 9309 25
                 Email: [email protected]

                 Chris Elliott
                 1516 Kent St.
                 Durham, NC 27707
                 USA

                 Phone: +1-919-308-1216
                 Email: [email protected]

                 Brian Haberman
                 11100 Johns Hopkins Road
                 Laurel, MD 20723
                 USA

                 Phone: +1-443-778-1319
                 Email: [email protected]"
    DESCRIPTION
       "The Management Information Base for NTP time entities.

        Copyright (c) 2010 IETF Trust and the persons identified as
        authors of the code.  All rights reserved.

        Redistribution and use in source and binary forms, with or
        without modification, is permitted pursuant to, and subject
        to the license terms contained in, the Simplified BSD License
        set forth in Section 4.c of the IETF Trust's Legal Provisions
        Relating to IETF Documents
        (http://trustee.ietf.org/license-info)."

   REVISION     "201005170000Z"
   DESCRIPTION
       "This revision of the MIB module is published as RFC 5907."

   ::= { mib-2 197 }

ntpSnmpMIBObjects  OBJECT IDENTIFIER ::= { ntpSnmpMIB 1 }

-- MIB contains 6 groups

ntpEntInfo         OBJECT IDENTIFIER ::= { ntpSnmpMIBObjects 1 }
ntpEntStatus       OBJECT IDENTIFIER ::= { ntpSnmpMIBObjects 2 }
ntpAssociation     OBJECT IDENTIFIER ::= { ntpSnmpMIBObjects 3 }
ntpEntControl      OBJECT IDENTIFIER ::= { ntpSnmpMIBObjects 4 }
ntpEntNotifObjects OBJECT IDENTIFIER ::= { ntpSnmpMIBObjects 5 }

--
-- Textual Conventions
--

NtpStratum ::= TEXTUAL-CONVENTION
   DISPLAY-HINT "d"
   STATUS      current
   DESCRIPTION
       "The NTP stratum, with 16 representing no stratum."
   SYNTAX      Unsigned32 (1..16)

NtpDateTime ::= TEXTUAL-CONVENTION
   DISPLAY-HINT "4d:4d:4d.4d"
   STATUS      current
   DESCRIPTION
       "NTP date/time on the device, in 128-bit
        NTP date format.  If time is not syncronized, this
        field shall be a zero-length string.

        This trusted certificate (TC) is not to be used for objects
        that are used to set the time of the node querying this
        object.  NTP should be used for this -- or at least SNTP."
   REFERENCE "RFC 5905, section 6"
   SYNTAX      OCTET STRING (SIZE (0 | 16))

--
-- Section 1: General NTP Entity information objects
--            (relatively static information)
--

ntpEntSoftwareName OBJECT-TYPE
   SYNTAX      Utf8String
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The product name of the running NTP version, e.g., 'ntpd'."
   ::= { ntpEntInfo  1 }

ntpEntSoftwareVersion OBJECT-TYPE
   SYNTAX      Utf8String
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The software version of the installed NTP implementation
        as a full version string, e.g., '[email protected] ...'"
   ::= { ntpEntInfo  2 }

ntpEntSoftwareVendor OBJECT-TYPE
   SYNTAX      Utf8String
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The vendor/author of the installed NTP version."
   ::= { ntpEntInfo  3 }

ntpEntSystemType OBJECT-TYPE
   SYNTAX      Utf8String
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "General hardware/os platform information,
        e.g., 'Linux 2.6.12 / x86'."
   -- freely configurable, default is OS Version / Hardware platform
   ::= { ntpEntInfo  4 }

ntpEntTimeResolution OBJECT-TYPE
   SYNTAX      Unsigned32
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The time resolution in integer format, where the resolution
       is represented as divisions of a second, e.g., a value of 1000
       translates to 1.0 ms."
   ::= { ntpEntInfo  5 }

ntpEntTimePrecision OBJECT-TYPE
   SYNTAX      Integer32
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The entity's precision in integer format, shows the precision.
        A value of -5 would mean 2^-5 = 31.25 ms."
   ::= { ntpEntInfo  6 }

ntpEntTimeDistance OBJECT-TYPE
   SYNTAX      DisplayString
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The distance from this NTP entity to the root time reference
       (stratum 0) source including the unit, e.g., '13.243 ms'."
   ::= { ntpEntInfo  7 }

--
-- Section 2: Current NTP status (dynamic information)
--

ntpEntStatusCurrentMode OBJECT-TYPE
   SYNTAX      INTEGER {
                           notRunning(1),
                           notSynchronized(2),
                           noneConfigured(3),
                           syncToLocal(4),
                           syncToRefclock(5),
                           syncToRemoteServer(6),
                           unknown(99)
                       }
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The current mode of the NTP.  The definition of each possible
        value is:
           notRunning(1) - NTP is not running.
           notSynchronized(2) - NTP is not synchronized to any time
                                source (stratum = 16).
           noneConfigured(3) - NTP is not synchronized and does not
                               have a reference configured
                               (stratum = 16).
           syncToLocal(4) - NTP is distributing time based on its
                            local clock (degraded accuracy and/or
                            reliability).
           syncToRefclock(5) - NTP is synchronized to a local
                               hardware refclock (e.g., GPS).
           syncToRemoteServer(6) - NTP is synchronized to a remote
                                   NTP server ('upstream' server).
           unknown(99) - The state of NTP is unknown."
   ::= { ntpEntStatus 1 }

ntpEntStatusStratum OBJECT-TYPE
   SYNTAX      NtpStratum
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The NTP entity's own stratum value.  Should be a stratum of
        syspeer + 1 (or 16 if no syspeer)."
   ::= { ntpEntStatus 2 }

ntpEntStatusActiveRefSourceId OBJECT-TYPE
   SYNTAX      Unsigned32 ( 0..99999 )
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The association ID of the current syspeer."
   ::= { ntpEntStatus 3 }

ntpEntStatusActiveRefSourceName OBJECT-TYPE
   SYNTAX      Utf8String
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The hostname/descriptive name of the current reference source
        selected as syspeer, e.g., 'ntp1.ptb.de' or 'GPS' or
        'DCFi', ..."
   ::= { ntpEntStatus 4 }

ntpEntStatusActiveOffset OBJECT-TYPE
   SYNTAX      DisplayString
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The time offset to the current selected reference time source
        as a string including unit, e.g., '0.032 ms' or '1.232 s'."
   ::= { ntpEntStatus 5 }

ntpEntStatusNumberOfRefSources OBJECT-TYPE
   SYNTAX      Unsigned32 (0..99)
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The number of reference sources configured for NTP."
   ::= { ntpEntStatus 6 }

ntpEntStatusDispersion OBJECT-TYPE
   SYNTAX      DisplayString
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The root dispersion of the running NTP entity, e.g., '6.927'."
   ::= { ntpEntStatus 7 }

ntpEntStatusEntityUptime OBJECT-TYPE
   SYNTAX      TimeTicks
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The uptime of the NTP entity, (i.e., the time since ntpd was
        (re-)initialized not sysUptime!).  The time is represented in
        hundreds of seconds since Jan 1, 1970 (00:00:00.000) UTC."
   ::= { ntpEntStatus 8 }

ntpEntStatusDateTime OBJECT-TYPE
   SYNTAX      NtpDateTime
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The current NTP date/time on the device, in 128-bit
        NTP date format.  If time is not syncronized, this
        field shall be a zero-length string.

        This object can be used to timestamp events on this
        node and allow a management station to correlate
        different time objects.  For example, a management
        station could query this object and sysUpTime in
        the same operation to be able to relate sysUpTime
        to NTP time.

        This object is not to be used to set the time of
        the node querying this object.  NTP should be used
        for this -- or at least SNTP."
   REFERENCE "RFC 5905, section 6"
   ::= { ntpEntStatus 9 }

ntpEntStatusLeapSecond OBJECT-TYPE
   SYNTAX      NtpDateTime
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "Date the next known leap second will occur.  If there is
        no leap second announced, then this object should be 0."
   ::= { ntpEntStatus 10 }

ntpEntStatusLeapSecDirection OBJECT-TYPE
   SYNTAX      Integer32 (-1..1)
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "Direction of next known leap second.  If there is no
        leap second announced, then this object should be 0."
   ::= { ntpEntStatus 11 }

ntpEntStatusInPkts OBJECT-TYPE
   SYNTAX      Counter32
   UNITS       "packets"
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The total number of NTP messages delivered to the
        NTP entity from the transport service.
        Discountinuities in the value of this counter can occur
        upon cold start or reinitialization of the NTP entity, the
        management system and at other times as indicated by
        discontinuities in the value of sysUpTime."
   ::= { ntpEntStatus 12 }

ntpEntStatusOutPkts OBJECT-TYPE
   SYNTAX      Counter32
   UNITS       "packets"
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The total number of NTP messages delivered to the
        transport service by this NTP entity.
        Discountinuities in the value of this counter can occur
        upon cold start or reinitialization of the NTP entity, the
        management system and at other times as indicated by
        discontinuities in the value of sysUpTime."
   ::= { ntpEntStatus 13 }

ntpEntStatusBadVersion OBJECT-TYPE
   SYNTAX      Counter32
   UNITS       "packets"
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The total number of NTP messages that were delivered
        to this NTP entity and were for an unsupported NTP
        version.
        Discountinuities in the value of this counter can occur
        upon cold start or reinitialization of the NTP entity, the
        management system and at other times as indicated by
        discontinuities in the value of sysUpTime."
   ::= { ntpEntStatus 14 }

ntpEntStatusProtocolError OBJECT-TYPE
   SYNTAX      Counter32
   UNITS       "packets"
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The total number of NTP messages that were delivered
        to this NTP entity and this entity was not able to
        process due to an NTP protocol error.
        Discountinuities in the value of this counter can occur
        upon cold start or reinitialization of the NTP entity, the
        management system and at other times as indicated by
        discontinuities in the value of sysUpTime."
   ::= { ntpEntStatus 15 }

ntpEntStatusNotifications OBJECT-TYPE
   SYNTAX      Counter32
   UNITS       "notifications"
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The total number of SNMP notifications that this NTP
        entity has generated.
        Discountinuities in the value of this counter can occur
        upon cold start or reinitialization of the NTP entity, the
        management system and at other times as indicated by
        discontinuities in the value of sysUpTime."
   ::= { ntpEntStatus 16 }

ntpEntStatPktModeTable OBJECT-TYPE
   SYNTAX           SEQUENCE OF NtpEntStatPktModeEntry
   MAX-ACCESS       not-accessible
   STATUS           current
   DESCRIPTION
       "The number of packets sent and received by packet mode.
        One entry per packet mode."
   ::= { ntpEntStatus 17 }

ntpEntStatPktModeEntry OBJECT-TYPE
   SYNTAX      NtpEntStatPktModeEntry
   MAX-ACCESS  not-accessible
   STATUS      current
   DESCRIPTION
       "A statistical record of the number of packets sent and
        received for each packet mode."
   INDEX       { ntpEntStatPktMode }
   ::= { ntpEntStatPktModeTable 1 }

NtpEntStatPktModeEntry   ::= SEQUENCE {
       ntpEntStatPktMode              INTEGER,
       ntpEntStatPktSent              Counter32,
       ntpEntStatPktReceived          Counter32
}

ntpEntStatPktMode OBJECT-TYPE
   SYNTAX      INTEGER {
                   symetricactive(1),
                   symetricpassive(2),
                   client(3),
                   server(4),
                   broadcastserver(5),
                   broadcastclient(6)
               }
   MAX-ACCESS  not-accessible
   STATUS      current
   DESCRIPTION
       "The NTP packet mode."
   ::= { ntpEntStatPktModeEntry 1 }

ntpEntStatPktSent OBJECT-TYPE
   SYNTAX      Counter32
   UNITS       "packets"
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The number of NTP packets sent with this packet mode.
        Discountinuities in the value of this counter can occur
        upon cold start or reinitialization of the NTP entity, the
        management system and at other times as indicated by
        discontinuities in the value of sysUpTime."
   ::= { ntpEntStatPktModeEntry 2 }

ntpEntStatPktReceived OBJECT-TYPE
   SYNTAX      Counter32
   UNITS       "packets"
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The number of NTP packets received with this packet mode.

        Discountinuities in the value of this counter can occur
        upon cold start or reinitialization of the NTP entity, the
        management system and at other times as indicated by
        discontinuities in the value of sysUpTime."
   ::= { ntpEntStatPktModeEntry 3 }

--
-- Section 3: The status of all currently mobilized associations
--

ntpAssociationTable OBJECT-TYPE
   SYNTAX           SEQUENCE OF NtpAssociationEntry
   MAX-ACCESS       not-accessible
   STATUS           current
   DESCRIPTION
       "The table of currently mobilized associations."
   ::= { ntpAssociation 1 }

ntpAssociationEntry OBJECT-TYPE
   SYNTAX      NtpAssociationEntry
   MAX-ACCESS  not-accessible
   STATUS      current
   DESCRIPTION
       "The table entry of currently mobilized associations."
   INDEX       { ntpAssocId }
   ::= { ntpAssociationTable 1 }

NtpAssociationEntry   ::= SEQUENCE {
       ntpAssocId                  Unsigned32,
       ntpAssocName                Utf8String,
       ntpAssocRefId               DisplayString,
       ntpAssocAddressType         InetAddressType,
       ntpAssocAddress             InetAddress,
       ntpAssocOffset              DisplayString,
       ntpAssocStratum             NtpStratum,
       ntpAssocStatusJitter        DisplayString,
       ntpAssocStatusDelay         DisplayString,
       ntpAssocStatusDispersion    DisplayString
}

ntpAssocId      OBJECT-TYPE
   SYNTAX      Unsigned32 ( 1..99999 )
   MAX-ACCESS  not-accessible
   STATUS      current
   DESCRIPTION
       "The association ID.  This is an internal, unique ID."
   ::= { ntpAssociationEntry 1 }

ntpAssocName    OBJECT-TYPE
   SYNTAX      Utf8String
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The hostname or other descriptive name for the association."
   ::= { ntpAssociationEntry 2 }

ntpAssocRefId   OBJECT-TYPE
   SYNTAX      DisplayString
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The refclock driver ID, if available."
   -- a refclock driver ID like "127.127.1.0" for non
   -- uni/multi/broadcast associations
   ::= { ntpAssociationEntry 3 }

ntpAssocAddressType OBJECT-TYPE
   SYNTAX      InetAddressType { ipv4(1), ipv6(2), ipv4z(3), ipv6z(4) }
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The type of address of the association.  Can be either IPv4 or
        IPv6 (both with or without zone index) and contains the type of
        address for unicast, multicast, and broadcast associations."
   ::= { ntpAssociationEntry 4 }

ntpAssocAddress OBJECT-TYPE
   SYNTAX      InetAddress (SIZE (4|8|16|20))
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The IP address (IPv4 or IPv6, with or without zone index) of
        the association.  The type and size depends on the
        ntpAssocAddressType object.  Represents the IP address of a
        uni/multi/broadcast association."
   ::= { ntpAssociationEntry 5 }

ntpAssocOffset  OBJECT-TYPE
   SYNTAX      DisplayString
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The time offset to the association as a string."
   -- including unit, e.g., "0.032 ms" or "1.232 s"
   ::= { ntpAssociationEntry 6 }

ntpAssocStratum OBJECT-TYPE
   SYNTAX      NtpStratum
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The association stratum value."
   ::= { ntpAssociationEntry 7 }

ntpAssocStatusJitter OBJECT-TYPE
   SYNTAX      DisplayString
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The jitter in milliseconds as a string."
   ::= { ntpAssociationEntry 8 }

ntpAssocStatusDelay OBJECT-TYPE
   SYNTAX      DisplayString
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The network delay in milliseconds as a string."
   ::= { ntpAssociationEntry 9 }

ntpAssocStatusDispersion OBJECT-TYPE
   SYNTAX      DisplayString
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The root dispersion of the association."
   -- e.g., "6.927"
   ::= { ntpAssociationEntry 10 }

ntpAssociationStatisticsTable OBJECT-TYPE
   SYNTAX           SEQUENCE OF NtpAssociationStatisticsEntry
   MAX-ACCESS       not-accessible
   STATUS           current
   DESCRIPTION
       "The table of statistics for current associations."
   ::= { ntpAssociation 2 }

ntpAssociationStatisticsEntry OBJECT-TYPE
   SYNTAX      NtpAssociationStatisticsEntry
   MAX-ACCESS  not-accessible
   STATUS      current
   DESCRIPTION
       "The table entry of statistics for current associations."
   INDEX       { ntpAssocId }
   ::= { ntpAssociationStatisticsTable 1 }

NtpAssociationStatisticsEntry   ::= SEQUENCE {
       ntpAssocStatInPkts          Counter32,
       ntpAssocStatOutPkts         Counter32,
       ntpAssocStatProtocolError   Counter32
}

ntpAssocStatInPkts OBJECT-TYPE
   SYNTAX      Counter32
   UNITS       "packets"
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The total number of NTP messages delivered to the
        NTP entity from this association.
        Discountinuities in the value of this counter can occur
        upon cold start or reinitialization of the NTP entity, the
        management system and at other times as indicated by
        discontinuities in the value of sysUpTime."
   ::= { ntpAssociationStatisticsEntry 1 }

ntpAssocStatOutPkts OBJECT-TYPE
   SYNTAX      Counter32
   UNITS       "packets"
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The total number of NTP messages delivered to the
        transport service by this NTP entity for this
        association.
        Discountinuities in the value of this counter can occur
        upon cold start or reinitialization of the NTP entity, the
        management system and at other times as indicated by
        discontinuities in the value of sysUpTime."
   ::= { ntpAssociationStatisticsEntry 2 }

ntpAssocStatProtocolError OBJECT-TYPE
   SYNTAX      Counter32
   UNITS       "packets"
   MAX-ACCESS  read-only
   STATUS      current
   DESCRIPTION
       "The total number of NTP messages that were delivered
        to this NTP entity from this association and this entity
        was not able to process due to an NTP protocol error.
        Discountinuities in the value of this counter can occur
        upon cold start or reinitialization of the NTP entity, the
        management system and at other times as indicated by
        discontinuities in the value of sysUpTime."
   ::= { ntpAssociationStatisticsEntry 3 }

--
-- Section 4: Control objects
--

ntpEntHeartbeatInterval OBJECT-TYPE
   SYNTAX      Unsigned32
   UNITS       "seconds"
   MAX-ACCESS  read-write
   STATUS      current
   DESCRIPTION
       "The interval at which the ntpEntNotifHeartbeat notification
        should be sent, in seconds.  If set to 0 and the
        entNotifHeartbeat bit in ntpEntNotifBits is 1, then
        ntpEntNotifHeartbeat is sent once.
        This value is stored persistently and will be restored to its
        last set value upon cold start or restart."
   DEFVAL { 60 }
   ::= { ntpEntControl 1 }

ntpEntNotifBits OBJECT-TYPE
   SYNTAX       BITS {
                    notUsed(0), -- Used to sync up bit and notification
                                -- indices
                    entNotifModeChange(1),
                    entNotifStratumChange(2),
                    entNotifSyspeerChanged(3),
                    entNotifAddAssociation(4),
                    entNotifRemoveAssociation(5),
                    entNotifConfigChanged(6),
                    entNotifLeapSecondAnnounced(7),
                    entNotifHeartbeat(8)
   }
   MAX-ACCESS  read-write
   STATUS      current
   DESCRIPTION
       "A bit for each notification.  A 1 for a particular bit enables
        that particular notification, a 0 disables it.
        This value is stored persistently and will be restored to its
        last set value upon cold start or restart."
   ::= { ntpEntControl 2 }

--
-- Section 5: Notification objects
--

ntpEntNotifMessage OBJECT-TYPE
   SYNTAX      Utf8String
   MAX-ACCESS  accessible-for-notify
   STATUS      current
   DESCRIPTION
       "Used as a payload object for all notifications.  Holds a
        cleartext event message."
   DEFVAL { "no event" }
   ::= { ntpEntNotifObjects 1 }

--
-- SNMP notification definitions
--

ntpEntNotifications OBJECT IDENTIFIER ::= { ntpSnmpMIB 0 }

ntpEntNotifModeChange NOTIFICATION-TYPE
   OBJECTS     { ntpEntStatusCurrentMode }
   STATUS      current
   DESCRIPTION
       "The notification to be sent when the NTP entity changes mode,
        including starting and stopping (if possible)."
   ::= { ntpEntNotifications 1 }

ntpEntNotifStratumChange NOTIFICATION-TYPE
   OBJECTS     { ntpEntStatusDateTime, ntpEntStatusStratum,
                 ntpEntNotifMessage }
   STATUS      current
   DESCRIPTION
       "The notification to be sent when stratum level of NTP changes."
   ::= { ntpEntNotifications 2 }

ntpEntNotifSyspeerChanged NOTIFICATION-TYPE
   OBJECTS     { ntpEntStatusDateTime, ntpEntStatusActiveRefSourceId,
                 ntpEntNotifMessage }
   STATUS      current
   DESCRIPTION
       "The notification to be sent when a (new) syspeer has been
        selected."
   ::= { ntpEntNotifications 3 }

ntpEntNotifAddAssociation NOTIFICATION-TYPE
   OBJECTS  { ntpEntStatusDateTime, ntpAssocName, ntpEntNotifMessage }
   STATUS      current
   DESCRIPTION
       "The notification to be sent when a new association is
        mobilized."
   ::= { ntpEntNotifications 4 }

ntpEntNotifRemoveAssociation NOTIFICATION-TYPE
   OBJECTS  { ntpEntStatusDateTime, ntpAssocName,  ntpEntNotifMessage }
   STATUS      current
   DESCRIPTION
       "The notification to be sent when an association is
        demobilized."
   ::= { ntpEntNotifications 5 }

ntpEntNotifConfigChanged NOTIFICATION-TYPE
   OBJECTS     { ntpEntStatusDateTime, ntpEntNotifMessage }
   STATUS      current
   DESCRIPTION
       "The notification to be sent when the NTP configuration has
        changed, e.g., when the system connected to the Internet and
        was assigned a new IP address by the ISPs DHCP server."
   ::= { ntpEntNotifications 6 }

ntpEntNotifLeapSecondAnnounced NOTIFICATION-TYPE
   OBJECTS     { ntpEntStatusDateTime, ntpEntNotifMessage }
   STATUS      current
   DESCRIPTION
       "The notification to be sent when a leap second has been
        announced."
   ::= { ntpEntNotifications 7 }

ntpEntNotifHeartbeat NOTIFICATION-TYPE
   OBJECTS     { ntpEntStatusDateTime, ntpEntStatusCurrentMode,
                 ntpEntHeartbeatInterval, ntpEntNotifMessage }
   STATUS      current
   DESCRIPTION
       "The notification to be sent periodically (as defined by
        ntpEntHeartbeatInterval) to indicate that the NTP entity is
        still alive."
   ::= { ntpEntNotifications 8 }

--
-- Conformance/Compliance statements
--

ntpEntConformance OBJECT IDENTIFIER ::= { ntpSnmpMIB 2 }

ntpEntCompliances OBJECT IDENTIFIER ::= { ntpEntConformance 1 }
ntpEntGroups      OBJECT IDENTIFIER ::= { ntpEntConformance 2 }

ntpEntNTPCompliance MODULE-COMPLIANCE
   STATUS      current
   DESCRIPTION
       "The compliance statement for SNMP entities that use NTP and
        implement the NTP MIB."
   MODULE  -- this module
       MANDATORY-GROUPS {
                          ntpEntObjectsGroup1
       }
       ::= { ntpEntCompliances 1 }

ntpEntSNTPCompliance MODULE-COMPLIANCE
   STATUS      current
   DESCRIPTION
       "The compliance statement for SNMP entities that use SNTP and
        implement the NTP MIB."
   MODULE  -- this module
       MANDATORY-GROUPS {
                          ntpEntObjectsGroup1
       }
       GROUP ntpEntObjectsGroup2
       DESCRIPTION
               "Optional object group."
       GROUP ntpEntNotifGroup
       DESCRIPTION
               "Optional notifications for this MIB."
       ::= { ntpEntCompliances 2 }

ntpEntObjectsGroup1 OBJECT-GROUP
   OBJECTS {
             ntpEntSoftwareName,
             ntpEntSoftwareVersion,
             ntpEntSoftwareVendor,
             ntpEntSystemType,
             ntpEntStatusEntityUptime,
             ntpEntStatusDateTime,
             ntpAssocName,
             ntpAssocRefId,
             ntpAssocAddressType,
             ntpAssocAddress
   }
   STATUS      current
   DESCRIPTION
       "A collection of objects for the NTP MIB."
   ::= { ntpEntGroups 1 }

ntpEntObjectsGroup2 OBJECT-GROUP
   OBJECTS {
             ntpEntTimeResolution,
             ntpEntTimePrecision,
             ntpEntTimeDistance,
             ntpEntStatusCurrentMode,
             ntpEntStatusStratum,
             ntpEntStatusActiveRefSourceId,
             ntpEntStatusActiveRefSourceName,
             ntpEntStatusActiveOffset,
             ntpEntStatusNumberOfRefSources,
             ntpEntStatusDispersion,
             ntpEntStatusLeapSecond,
             ntpEntStatusLeapSecDirection,
             ntpEntStatusInPkts,
             ntpEntStatusOutPkts,
             ntpEntStatusBadVersion,
             ntpEntStatusProtocolError,
             ntpEntStatusNotifications,
             ntpEntStatPktSent,
             ntpEntStatPktReceived,
             ntpAssocOffset,
             ntpAssocStratum,
             ntpAssocStatusJitter,
             ntpAssocStatusDelay,
             ntpAssocStatusDispersion,
             ntpAssocStatInPkts,
             ntpAssocStatOutPkts,
             ntpAssocStatProtocolError,
             ntpEntHeartbeatInterval,
             ntpEntNotifBits,
             ntpEntNotifMessage
   }
   STATUS      current
   DESCRIPTION
       "A collection of objects for the NTP MIB."
   ::= { ntpEntGroups 2 }

ntpEntNotifGroup NOTIFICATION-GROUP
   NOTIFICATIONS {
                   ntpEntNotifModeChange,
                   ntpEntNotifStratumChange,
                   ntpEntNotifSyspeerChanged,
                   ntpEntNotifAddAssociation,
                   ntpEntNotifRemoveAssociation,
                   ntpEntNotifConfigChanged,
                   ntpEntNotifLeapSecondAnnounced,
                   ntpEntNotifHeartbeat
   }
   STATUS      current
   DESCRIPTION
       "A collection of notifications for the NTP MIB"
   ::= { ntpEntGroups 3 }

END