--
-- NTP MIB, Revision 0.2, 7/25/97
--

NTP-MIB DEFINITIONS ::= BEGIN

IMPORTS
    Integer32, IpAddress, MODULE-IDENTITY, OBJECT-TYPE, Unsigned32, 
    enterprises
        FROM SNMPv2-SMI

    TEXTUAL-CONVENTION, TruthValue
        FROM SNMPv2-TC;

ntpMIB MODULE-IDENTITY
    LAST-UPDATED "199707251530Z"
    ORGANIZATION 
        "University of Delaware"
    CONTACT-INFO 
        "Adarsh Sethi
         Department of Computer & Information Sciences
         University of Delaware
         Newark, DE 19716
         Tel: +1 302 831 1945
         E-mail: sethi@cis.udel.edu

         David Mills
         Department of Electrical Engineering
         University of Delaware
         Newark, DE 19716
         Tel: +1 302 831 ????
         E-mail: mills@ee.udel.edu"
    DESCRIPTION 
        "This MIB module defines a MIB which provides mechanisms to
         monitor and control an NTP server."
    ::= { udel 3 }

--
-- Position within the OID hierarchy of this MIB:
--
udel OBJECT IDENTIFIER
    ::= { enterprises 1277 }

--
-- The various groups defined within this MIB definition:
--
ntpSystem OBJECT IDENTIFIER
    ::= { ntpMIB 1 }

ntpPeers OBJECT IDENTIFIER
    ::= { ntpMIB 2 }

ntpFilter OBJECT IDENTIFIER
    ::= { ntpMIB 3 }

--
-- Textual conventions:
--

NTPTimeStamp ::= TEXTUAL-CONVENTION
    DISPLAY-HINT "4x.4x"
    STATUS      current
    DESCRIPTION 
        ""
    SYNTAX      OCTET STRING (SIZE(8))

NTPLeapIndicator ::= TEXTUAL-CONVENTION
    STATUS      current
    DESCRIPTION 
        ""
    SYNTAX      INTEGER {
		    noWarning(0),
		    addSecond(1),
		    subtractSecond(2), 
                    alarm(3) }

--
-- System Group
--

ntpSysLeap OBJECT-TYPE
    SYNTAX      NTPLeapIndicator
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        " two-bit code warning of an impending leap
         second to be inserted in the NTP timescale."
    ::= { ntpSystem 1 }

ntpSysStratum OBJECT-TYPE
    SYNTAX      Integer32 (0..255)
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        " indicating the stratum of the local clock.
         0, unspecified
         1, primary reference (e.g.,, calibrated atomic clock,
            radio clock)
         2-255, secondary reference (via NTP)"
    ::= { ntpSystem 2 }

ntpSysPrecision OBJECT-TYPE
    SYNTAX      Integer32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        "signed integer indicating the precision
         of the various clocks, in seconds to the nearest power
         of two."
    ::= { ntpSystem 3 }

ntpSysRootDelay OBJECT-TYPE
    SYNTAX      OCTET STRING
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        "the total roundtrip delay to the primary
         reference source at the root of the synchronization
         subnet, in seconds"
    ::= { ntpSystem 4 }

ntpSysRootDispersion OBJECT-TYPE
    SYNTAX      OCTET STRING
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        "the maximum error relative to the primary
         reference source at the root of the synchronization
         subnet, in seconds. Only positive values greater
         than zero are possible"
    ::= { ntpSystem 5 }

ntpSysRefId OBJECT-TYPE
    SYNTAX      OCTET STRING
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        " the particular reference clock. In the case of
         stratum 0 (unspecified) or stratum 1 (primary reference
         source), this is a four-octet, left-justified,zero-padded
         ASCII string.In the case of stratum 2 and greater (secondary
         reference) this is the four-octet Internet address of the
         peer selected for synchronization."
    ::= { ntpSystem 6 }

ntpSysRefTime OBJECT-TYPE
    SYNTAX      NTPTimeStamp
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        " the local time when the local clock was last
         updated. If the local clock has neverbeen synchronized,
         the value is zero."
    ::= { ntpSystem 7 }

ntpSysPoll OBJECT-TYPE
    SYNTAX      Integer32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        " the minimum interval between transmitted
         messages, in seconds as a power of two. For instance,
         a value of six indicates a minimum interval of 64 seconds."
    ::= { ntpSystem 8 }

ntpSysPeer OBJECT-TYPE
    SYNTAX      Unsigned32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        " the current synchronization source. Usually
         this will be a pointer to a structure containing the peer
         variables. The special value NULL indicates there is no
         currently valid synchronization source."
    ::= { ntpSystem 9 }

ntpSysPhase OBJECT-TYPE
    SYNTAX      OCTET STRING
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        ""
    ::= { ntpSystem 10 }

ntpSysFreq OBJECT-TYPE
    SYNTAX      OCTET STRING
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        ""
    ::= { ntpSystem 11 }

ntpSysError OBJECT-TYPE
    SYNTAX      OCTET STRING
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        ""
    ::= { ntpSystem 12 }

ntpSysClock OBJECT-TYPE
    SYNTAX      NTPTimeStamp
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        "the current local time. Local time is derived
         from the hardware clock of the particular machine and
         increments at intervals depending on the design used."
    ::= { ntpSystem 13 }

ntpSysSystem OBJECT-TYPE
    SYNTAX      OCTET STRING
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        " the type of the local Operating System"
    ::= { ntpSystem 14 }

ntpSysProcessor OBJECT-TYPE
    SYNTAX      OCTET STRING
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        " the type of the local Processor"
    ::= { ntpSystem 15 }

--
-- Peers Group
--

--
-- Peer Variables Table
--

ntpPeersVarTable OBJECT-TYPE
    SYNTAX      SEQUENCE OF NtpPeersVarEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION 
        ""
    ::= { ntpPeers 1 }

ntpPeersVarEntry OBJECT-TYPE
    SYNTAX      NtpPeersVarEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION 
        ""
    INDEX       { ntpPeersAssocId }
    ::= { ntpPeersVarTable 1 }

NtpPeersVarEntry ::= SEQUENCE {
    ntpPeersAssocId         Unsigned32,
    ntpPeersConfigured      TruthValue,
    ntpPeersPeerAddress     IpAddress,
    ntpPeersPeerPort        Unsigned32,
    ntpPeersHostAddress     IpAddress,
    ntpPeersHostPort        Unsigned32,
    ntpPeersLeap            NTPLeapIndicator,
    ntpPeersMode            INTEGER,
    ntpPeersStratum         Integer32,
    ntpPeersPeerPoll        Integer32,
    ntpPeersHostPoll        Integer32,
    ntpPeersPrecision       Integer32,
    ntpPeersRootDelay       OCTET STRING,
    ntpPeersRootDispersion  OCTET STRING,
    ntpPeersRefId           OCTET STRING,
    ntpPeersRefTime         NTPTimeStamp,
    ntpPeersOrgTime         NTPTimeStamp,
    ntpPeersReceiveTime     NTPTimeStamp,
    ntpPeersTransmitTime    NTPTimeStamp,
    ntpPeersUpdateTime      NTPTimeStamp,
    ntpPeersReach           Unsigned32,
    ntpPeersTimer           Integer32,
    ntpPeersOffset          OCTET STRING,
    ntpPeersDelay           OCTET STRING,
    ntpPeersDispersion      OCTET STRING
}

ntpPeersAssocId OBJECT-TYPE
    SYNTAX      Unsigned32
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION 
        ""
    ::= { ntpPeersVarEntry 1 }

ntpPeersConfigured OBJECT-TYPE
    SYNTAX      TruthValue
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        " This is a bit indicating that the association
         was created from configuration information and should not
         be demobilized if the peer becomes unreachable."
    ::= { ntpPeersVarEntry 2 }

ntpPeersPeerAddress OBJECT-TYPE
    SYNTAX      IpAddress
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        " the Internet address of the peer"
    ::= { ntpPeersVarEntry 3 }

ntpPeersPeerPort OBJECT-TYPE
    SYNTAX      Unsigned32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        " 16-bit port number of the peer."
    ::= { ntpPeersVarEntry 4 }

ntpPeersHostAddress OBJECT-TYPE
    SYNTAX      IpAddress
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        " the Internet address of the host"
    ::= { ntpPeersVarEntry 5 }

ntpPeersHostPort OBJECT-TYPE
    SYNTAX      Unsigned32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        " 16-bit port number of the host"
    ::= { ntpPeersVarEntry 6 }

ntpPeersLeap OBJECT-TYPE
    SYNTAX      NTPLeapIndicator
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        " two-bit code warning of an impending leap
         second to be inserted in the NTP timescale."
    ::= { ntpPeersVarEntry 7 }

ntpPeersMode OBJECT-TYPE
    SYNTAX      INTEGER {
		   unspecified(0),
		   symmetricActive(1), 
                   symmetricPassive(2),
		   client(3),
		   server(4), 
                   broadcast(5),
		   reservedControl(6),
		   reservedPrivate(7)
		}
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        " the association mode,with values coded as
         follows:
         0, unspecified
         1, symmetric active
         2, symmetric passive
         3, client
         4, server
         5, broadcast
         6, reserved for NTP control messages
         7, reserved for private use
         "
    ::= { ntpPeersVarEntry 8 }

ntpPeersStratum OBJECT-TYPE
    SYNTAX      Integer32 (0..255)
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        " indicating the stratum of the peer clock.
         0, unspecified
         1, primary reference (e.g.,, calibrated atomic clock,
         radio clock)
         2-255, secondary reference (via NTP)"
    ::= { ntpPeersVarEntry 9 }

ntpPeersPeerPoll OBJECT-TYPE
    SYNTAX      Integer32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        "poll interval of the peer"
    ::= { ntpPeersVarEntry 10 }

ntpPeersHostPoll OBJECT-TYPE
    SYNTAX      Integer32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        "poll interval of the host"
    ::= { ntpPeersVarEntry 11 }

ntpPeersPrecision OBJECT-TYPE
    SYNTAX      Integer32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        "the same as the systemPrecision except this is
         for the peer"
    ::= { ntpPeersVarEntry 12 }

ntpPeersRootDelay OBJECT-TYPE
    SYNTAX      OCTET STRING
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        "the same as the systemRootDealy except this is for
         the peer"
    ::= { ntpPeersVarEntry 13 }

ntpPeersRootDispersion OBJECT-TYPE
    SYNTAX      OCTET STRING
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        "the same as the systemDispersion except this is for
         the peer"
    ::= { ntpPeersVarEntry 14 }

ntpPeersRefId OBJECT-TYPE
    SYNTAX      OCTET STRING
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        "the same as the systemRefid except this is for
         the peer"
    ::= { ntpPeersVarEntry 15 }

ntpPeersRefTime OBJECT-TYPE
    SYNTAX      NTPTimeStamp
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        "the same as the systemRefTime except this is for
         the peer"
    ::= { ntpPeersVarEntry 16 }

ntpPeersOrgTime OBJECT-TYPE
    SYNTAX      NTPTimeStamp
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        " the local time at the peer when its latest
         NTP message was sent. If the peer becomes unreachable the
         value is set to zero."
    ::= { ntpPeersVarEntry 17 }

ntpPeersReceiveTime OBJECT-TYPE
    SYNTAX      NTPTimeStamp
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        "the local time when the latest NTP message
         from the peer arrived. If the peer becomes unreachable the
         value is set to zero."
    ::= { ntpPeersVarEntry 18 }

ntpPeersTransmitTime OBJECT-TYPE
    SYNTAX      NTPTimeStamp
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        "the local time at which the NTP message
         departed the sender."
    ::= { ntpPeersVarEntry 19 }

ntpPeersUpdateTime OBJECT-TYPE
    SYNTAX      NTPTimeStamp
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        " "
    ::= { ntpPeersVarEntry 20 }

ntpPeersReach OBJECT-TYPE
    SYNTAX      Unsigned32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        "a shift register of NTP.WINDOW bits used to determine
         the reachability status of the peer, with bits entering
         from the least significant (rightmost) end. A peer is
         considered reachable if at least one bit in this register is
         set to one."
    ::= { ntpPeersVarEntry 21 }

ntpPeersTimer OBJECT-TYPE
    SYNTAX      Integer32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        ""
    ::= { ntpPeersVarEntry 22 }

ntpPeersOffset OBJECT-TYPE
    SYNTAX      OCTET STRING
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        ""
    ::= { ntpPeersVarEntry 23 }

ntpPeersDelay OBJECT-TYPE
    SYNTAX      OCTET STRING
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        ""
    ::= { ntpPeersVarEntry 24 }

ntpPeersDispersion OBJECT-TYPE
    SYNTAX      OCTET STRING
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        ""
    ::= { ntpPeersVarEntry 25 }

--
-- Filter Group
--
-- Implementation of this group is optional. It must be implemented
-- when the filter and selection algorithms described in Section 4
-- of RFC 1305 are used.
--

--
-- Filter Group Peer Variables Table
--
ntpFilterPeersVarTable OBJECT-TYPE
    SYNTAX      SEQUENCE OF NtpFilterPeersVarEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION 
        "This table is an extension of the Peer Variables Table
         in the Peer Group."
    ::= { ntpFilter 1 }

ntpFilterPeersVarEntry OBJECT-TYPE
    SYNTAX      NtpFilterPeersVarEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION 
        ""
    AUGMENTS    { ntpPeersVarEntry }
    ::= { ntpFilterPeersVarTable 1 }

NtpFilterPeersVarEntry ::= SEQUENCE {
    ntpFilterValidEntries   Integer32
}

ntpFilterValidEntries OBJECT-TYPE
    SYNTAX      Integer32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        "The number of valid entries for a peer in the Filter Register Table."
    ::= { ntpFilterPeersVarEntry 1 }

--
-- Filter Register Table
--

ntpFilterRegisterTable OBJECT-TYPE
    SYNTAX      SEQUENCE OF NtpFilterRegisterEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION 
        ""
    ::= { ntpFilter 2 }

ntpFilterRegisterEntry OBJECT-TYPE
    SYNTAX      NtpFilterRegisterEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION 
        ""
    INDEX       { ntpPeersAssocId, ntpFilterIndex }
    ::= { ntpFilterRegisterTable 1 }

NtpFilterRegisterEntry ::= SEQUENCE {
    ntpFilterIndex              Unsigned32,
    ntpFilterPeersOffset        OCTET STRING,
    ntpFilterPeersDelay         OCTET STRING,
    ntpFilterPeersDispersion    OCTET STRING
}

ntpFilterIndex OBJECT-TYPE
    SYNTAX      Unsigned32
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION 
        ""
    ::= { ntpFilterRegisterEntry 1 }

ntpFilterPeersOffset OBJECT-TYPE
    SYNTAX      OCTET STRING
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        "the offset of the peer clock relative to the
         local clock in seconds"
    ::= { ntpFilterRegisterEntry 2 }

ntpFilterPeersDelay OBJECT-TYPE
    SYNTAX      OCTET STRING
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        "roundtrip delay of the peer clock relative to the
         local clock over the network path between them, in seconds.
         this variable can take on both positive and negative values,
         depending on clock precision and skew-error accumulation."
    ::= { ntpFilterRegisterEntry 3 }

ntpFilterPeersDispersion OBJECT-TYPE
    SYNTAX      OCTET STRING
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION 
        "the maximum error of the peer clock relative to the
         local clock over the network path between them, in seconds.
         Only positive values greater than zero are possible."
    ::= { ntpFilterRegisterEntry 4 }

END