RFC1232-MIB device MIB details by RFC

RFC1232-MIB file content

The SNMP protocol is used to for conveying information and commands between agents and managing entities. SNMP uses the User Datagram Protocol (UDP) as the transport protocol for passing data between managers and agents. The reasons for using UDP for SNMP are, firstly it has low overheads in comparison to TCP, which uses a 3-way hand shake for connection. Secondly, in congested networks, SNMP over TCP is a bad idea because TCP in order to maintain reliability will flood the network with retransmissions.

Management information (MIB) is represented as a collection of managed objects. These objects together form a virtual information base called MIB. An agent may implement many MIBs, but all agents must implement a particular MIB called MIB-II [16]. This standard defines variables for things such as interface statistics (interface speeds, MTU, octets sent, octets received, etc.) as well as various other things pertaining to the system itself (system location, system contact, etc.). The main goal of MIB-II is to provide general TCP/IP management information.

Use ActiveXperts Network Monitor 2024 to import vendor-specific MIB files, inclusing RFC1232-MIB.

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Mib:	RFC1232-MIB  [download]  [view objects]
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-- WinAgents MIB Extraction Wizard
-- Extracted from rfc1232.txt 16.03.2005 20:20:14

RFC1232-MIB DEFINITIONS ::= BEGIN

IMPORTS
        experimental, Counter
                FROM RFC1155-SMI
        DisplayString
                FROM RFC1158-MIB
        OBJECT-TYPE
                FROM RFC-1212;

--  This MIB module uses the extended OBJECT-TYPE macro as
--  defined in [13].


--  this is the MIB module for ds1 objects

ds1 OBJECT IDENTIFIER ::= { experimental 2 }

-- the DS1 Configuration group


-- Although the objects in this group are read-only, at the
-- agent's discretion they may be made read-write so that the
-- management station, when appropriately authorized, may
-- change the behavior of the CSU, e.g., to place the device
-- into a loopback state or emit a QRSS BER test.

-- Implementation of this group is mandatory for all systems
-- that attach to a ds1.

ds1ConfigTable OBJECT-TYPE
    SYNTAX  SEQUENCE OF DS1ConfigEntry
    ACCESS  not-accessible
    STATUS  mandatory
    DESCRIPTION
            "The DS1 Configuration table."
    ::= { ds1 1 }

ds1ConfigEntry OBJECT-TYPE
    SYNTAX  DS1ConfigEntry
    ACCESS  not-accessible
    STATUS  mandatory
    DESCRIPTION
            "An entry in the DS1 Configuration table."
    INDEX   { ds1CSUIndex }
    ::= { ds1ConfigTable 1 }

DS1ConfigEntry ::=
    SEQUENCE {
        ds1CSUIndex
            INTEGER,
        ds1Index
            INTEGER,
        ds1TimeElapsed
            INTEGER (1..900),
        ds1ValidIntervals
            INTEGER (0..96),
        ds1LineType
            INTEGER,
        ds1ZeroCoding
            INTEGER,
        ds1Loopback
            INTEGER,
        ds1SendCode
            INTEGER,
        ds1YellowAlarm
            INTEGER,
        ds1RedAlarm
            INTEGER,

        ds1CircuitIdentifier
            DisplayString (SIZE (0..255))
}

ds1CSUIndex OBJECT-TYPE
    SYNTAX  INTEGER
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The index value which uniquely identifies the CSU
            to which this entry is applicable."
    ::= { ds1ConfigEntry 1 }

ds1Index OBJECT-TYPE
    SYNTAX  INTEGER
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "An index value that uniquely identifies an
            interface to a ds1.  The interface identified by a
            particular value of this index is the same
            interface as identified by the same value an
            ifIndex object instance."
    ::= { ds1ConfigEntry 2 }

ds1TimeElapsed OBJECT-TYPE
    SYNTAX  INTEGER (1..900)
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The number of seconds that have elapsed since the
            beginning of the current error-measurement period.
            Any fraction is rounded up."
    ::= { ds1ConfigEntry 3 }

ds1ValidIntervals OBJECT-TYPE
    SYNTAX  INTEGER (0..96)
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The number of previous intervals for which valid
            data was collected.  The value will be 96 unless
            the CSU device was brought online within the last
            24 hours, in which case the value will be the
            number of complete 15 minute intervals the CSU has
            been online."
    ::= { ds1ConfigEntry 4 }


ds1LineType OBJECT-TYPE
    SYNTAX  INTEGER {
                other(1),
                ds1ESF(2),
                ds1D4(3),
                ds1ANSI-ESF(4),
                ds1G704(5),
                ds1G704-CRC(6)
            }
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "This variable indicates the variety of DS1 Line
            implementing this circuit.  The type of circuit
            affects the number of bits per second that the
            circuit can reasonably carry, as well as the
            interpretation of the usage and error statistics.

            The values, in sequence, describe:
            TITLE:       SPECIFICATION:
            ds1ESF        AT&T Extended SuperFrame DS1 [10]
            ds1D4         AT&T D4 format DS1 [16], [17]
            ds1ANSI-ESF   ANSI Extended SuperFrame format [14]
            ds1G704       CCITT Recommendation G.704 [12]
                            (section 2.1.3.2)
            ds1G704-CRC   CCITT Recommendation G.704 [12]
                            (section 2.1.3.1)
            "
    ::= { ds1ConfigEntry 5 }

ds1ZeroCoding OBJECT-TYPE
    SYNTAX  INTEGER {
                ds1JammedBit(1),
                ds1B8ZS(2),
                ds1InvertedHDLC(3),
                ds1HDB3(4),
                ds1ZBTSI(5)
            }
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "This variable describes the variety of Zero Code
            Suppression used on the link, which in turn
            affects a number of its characteristics.

            ds1JammedBit refers the Jammed bit Zero Encoding,
            in which the AT&T specification of at least one
            pulse every 8 bit periods is literally implemented

            by forcing a pulse in bit 8 of each channel.
            Thus, only seven bits per channel, or 1.344 Mbps,
            is available for data.

            ds1B8ZS refers to the use of a specified pattern
            of normal bits and bipolar violations which are
            used to replace a sequence of eight zero bits (see
            [14]).  In this context, all eight bits in a
            channel are technically available for data, but
            care must be taken with D4 encoded data to avoid
            having HDLC Flag streams imitate spurious Yellow
            Alarm conditions.  Typically, one bit per frame is
            ignored to force flag streams to rotate, thereby
            avoiding this error type.  CCITT Recommendation
            G.703 [11] may be referred to for further
            definition of these.

            ds1InvertedHDLC refers to the practice, common on
            HDLC encoded DS1 data links, of inverting the data
            between the serial interface chip and the CSU.
            Since HDLC guarantees one zero every 6 bits in the
            worst case, while the standards call for (in
            effect) at least one pulse every eight, inverted
            HDLC enjoys 4/24 one's density on the line, which
            may improve the effective clock stability of a DS1
            line.  As with B8ZS, all eight bits in a channel
            are technically available for data, but care must
            be taken with D4 encoded data to avoid having HDLC
            Flag streams imitate spurious Yellow Alarm
            conditions.  Typically, one bit per frame is
            ignored to force flag streams to rotate, thereby
            avoiding this error type.

            ANSI Clear Channels may use ds1ZBTSI, or Zero Byte
            Time Slot Interchange (see [14]).

            G.704 links, with or without CRC, use ds1HDB3 (see
            [11]).  "
    ::= { ds1ConfigEntry 6 }

ds1Loopback OBJECT-TYPE
    SYNTAX  INTEGER {
                ds1NoLoop(1),
                ds1LocalLoopbackLocalSide(2),
                ds1LocalLoopbackRemoteSide(3),
                ds1RemoteLoopbackLocalSide(4),
                ds1RemoteLoopbackRemoteSide(5)
            }

    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "This variable represents the loopback state of
            the CSU.  Devices supporting read/write access
            should return badValue in response to a requested
            loopback state that the CSU does not support.  The
            values mean:

            ds1NoLoop

               Not in the loopback state.  A device that is
               not capable of performing a loopback on either
               interface shall always return this as it's
               value.

            ds1LocalLoopbackLocalSide

               Signal received from the local side of the
               device is looped back at the local connector
               (eg, without involving the CSU).

            ds1LocalLoopbackRemoteSide

               Signal received from the local side of the
               device is looped back at the remote connector
               (eg, through the CSU).

            ds1RemoteLoopbackLocalSide

               Signal received from the remote side of the
               device is looped back at the local connector
               (eg, through the CSU).

            ds1RemoteLoopbackRemoteSide

               Signal received from the remote side of the
               device is looped back at the remote connector
               (eg, without involving the CSU)."
    ::= { ds1ConfigEntry 7 }

ds1SendCode OBJECT-TYPE
    SYNTAX  INTEGER {
                ds1OtherTest(1),
                ds1SendNoCode(2),
                ds1SendSetCode(3),
                ds1SendResetCode(4),
                ds1SendQRSS(5)

            }
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
       "This variable indicates what type of code is
       being sent across the DS1 circuit by the CSU.  The
       values mean:

       ds1SendNoCode    sending looped or normal data
       ds1SendSetCode   sending a loopback request
       ds1SendResetCode sending a loopback termination request
       ds1SendQRSS      sending the BERT pattern described in
                        ANSI T1.403-1989 section 5.6
       ds1OtherTest     sending a different BERT/BLERT pattern,
                        such as all zeroes, all ones, etc."
    ::= { ds1ConfigEntry 8 }

ds1YellowAlarm OBJECT-TYPE
    SYNTAX  INTEGER {
                ds1NoYellowAlarm (1),
                ds1YellowAlarm (2)
            }
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "This variable indicates if a Yellow Alarm
            condition exists.

            Note that G.704 interfaces do not support Yellow
            Alarms.  Accordingly, such agents should return
            the value ds1NoYellowAlarm."
    ::= { ds1ConfigEntry 9 }

ds1RedAlarm OBJECT-TYPE
    SYNTAX  INTEGER {
                ds1NoRedAlarm (1),
                ds1RedAlarm (2)
            }
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "This variable indicates if a Red Alarm condition
            exists.

            Note that G.704 interfaces do not support Red
            Alarms.  Accordingly, such agents should return
            the value ds1NoRedAlarm."
    ::= { ds1ConfigEntry 10 }

ds1CircuitIdentifier OBJECT-TYPE
    SYNTAX  DisplayString (SIZE (0..255))
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "This variable contains the transmission vendor's
            circuit identifier, for the purpose of
            facilitating troubleshooting."
    ::= { ds1ConfigEntry 11 }


-- the DS1 Interval group

-- Implementation of this group is mandatory for all systems
-- that attach to a ds1.

-- It is recognized that some currently deployed CSUs do not
-- record the entire set of statistics specified in this
-- group.  Accordingly, some agents queried for these objects
-- may treat these objects as having an ACCESS clause value
-- of not-accessible.

-- The DS1 Interval Table contains various statistics
-- collected by each CSU over the previous 24 hours of
-- operation.  The past 24 hours are broken into 96 completed
-- 15 minute intervals.

ds1IntervalTable OBJECT-TYPE
    SYNTAX  SEQUENCE OF DS1IntervalEntry
    ACCESS  not-accessible
    STATUS  mandatory
    DESCRIPTION
            "The DS1 Interval table."
    ::= { ds1 2 }

ds1IntervalEntry OBJECT-TYPE
    SYNTAX  DS1IntervalEntry
    ACCESS  not-accessible
    STATUS  mandatory
    DESCRIPTION
            "An entry in the DS1 Interval table."
    INDEX   { ds1IntervalIndex, ds1IntervalNumber }
    ::= { ds1IntervalTable 1 }

DS1IntervalEntry ::=
    SEQUENCE {
        ds1IntervalIndex
            INTEGER,

        ds1IntervalNumber
            INTEGER (1..96),
        ds1IntervalESs
            Counter,
        ds1IntervalSESs
            Counter,
        ds1IntervalSEFSs
            Counter,
        ds1IntervalUASs
            Counter,
        ds1IntervalCSSs
            Counter,
        ds1IntervalBPVs
            Counter,
        ds1IntervalCVs
            Counter
    }

ds1IntervalIndex OBJECT-TYPE
    SYNTAX  INTEGER
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The index value which uniquely identifies the CSU
            to which this entry is applicable.  The interface
            identified by a particular value of this index is
            the same interface as identified by the same value
            an ds1CSUIndex object instance."
    ::= { ds1IntervalEntry 1 }

ds1IntervalNumber OBJECT-TYPE
    SYNTAX  INTEGER (1..96)
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "A number between 1 and 96, where 1 is the most
            recently completed 15 minute interval and 96 is
            the least recently completed 15 minute interval
            (assuming that all 96 intervals are valid)."
    ::= { ds1IntervalEntry 2 }

ds1IntervalESs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of Errored
            Seconds, as defined by ANSI Draft Standard

            T1M1.3/90 - 027R2[15], encountered by a DS1 CSU
            during one of the previous 96 fifteen minute
            intervals."
    ::= { ds1IntervalEntry 3 }

ds1IntervalSESs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of
            Severely Errored Seconds, as defined by ANSI Draft
            Standard T1M1.3/90 - 027R2[15], encountered by a
            DS1 CSU during one of the previous 96 fifteen
            minute intervals."
    ::= { ds1IntervalEntry 4 }

ds1IntervalSEFSs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of
            Severely Errored Framing Seconds, as defined by
            ANSI Draft Standard T1M1.3/90 - 027R2[15],
            encountered by a DS1 CSU during one of the
            previous 96 fifteen minute intervals."
    ::= { ds1IntervalEntry 5 }

ds1IntervalUASs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of
            Unavailable Seconds, as defined by ANSI Draft
            Standard T1M1.3/90 - 027R2[15], encountered by a
            DS1 CSU during one of the previous 96 fifteen
            minute intervals."
    ::= { ds1IntervalEntry 6 }

ds1IntervalCSSs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of
            Controlled Slip Seconds, as defined by ANSI Draft

            Standard T1M1.3/90 - 027R2[15], encountered by a
            DS1 CSU during one of the previous 96 fifteen
            minute intervals."
    ::= { ds1IntervalEntry 7 }

ds1IntervalBPVs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of Bipolar
            Violations, as defined by ANSI Draft Standard
            T1M1.3/90 - 027R2[15], encountered by a DS1 CSU
            during one of the previous 96 fifteen minute
            intervals."
    ::= { ds1IntervalEntry 8 }

ds1IntervalCVs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of Code
            Violation Error Events, as defined by ANSI Draft
            Standard T1M1.3/90 - 027R2[15], encountered by a
            DS1 CSU during one of the previous 96 fifteen
            minute intervals.

            Note that D4 and G.704 (section 2.1.3.2)
            interfaces do not support Code Violation Error
            Events.  Accordingly, such agents may treat this
            object as having an ACCESS clause value of not-
            accessible."
    ::= { ds1IntervalEntry 9 }


-- the DS1 Current group

-- Implementation of this group is mandatory for all systems
-- that attach to a ds1.

-- It is recognized that some currently deployed CSUs do not
-- record the entire set of statistics specified in this
-- group.  Accordingly, some agents queried for these objects
-- may treat these objects as having an ACCESS clause value
-- of not-accessible.

-- The DS1 current table contains various statistics being

-- collected for the current 15 minute interval.

ds1CurrentTable OBJECT-TYPE
    SYNTAX  SEQUENCE OF DS1CurrentEntry
    ACCESS  not-accessible
    STATUS  mandatory
    DESCRIPTION
            "The DS1 Current table."
    ::= { ds1 3 }

ds1CurrentEntry OBJECT-TYPE
    SYNTAX  DS1CurrentEntry
    ACCESS  not-accessible
    STATUS  mandatory
    DESCRIPTION
            "An entry in the DS1 Current table."
    INDEX   { ds1CurrentIndex }
    ::= { ds1CurrentTable 1 }

DS1CurrentEntry ::=
    SEQUENCE {
        ds1CurrentIndex
            INTEGER,
        ds1CurrentESs
            Counter,
        ds1CurrentSESs
            Counter,
        ds1CurrentSEFSs
            Counter,
        ds1CurrentUASs
            Counter,
        ds1CurrentCSSs
            Counter,
        ds1CurrentBPVs
            Counter,
        ds1CurrentCVs
            Counter
    }

ds1CurrentIndex OBJECT-TYPE
    SYNTAX  INTEGER
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The index value which uniquely identifies the CSU
            to which this entry is applicable.  The interface
            identified by a particular value of this index is
            the same interface as identified by the same value

            an ds1CSUIndex object instance."
    ::= { ds1CurrentEntry 1 }

ds1CurrentESs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of Errored
            Seconds, as defined by ANSI Draft Standard
            T1M1.3/90 - 027R2[15], encountered by a DS1 CSU in
            the current 15 minute interval."
    ::= { ds1CurrentEntry 2 }

ds1CurrentSESs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of
            Severely Errored Seconds, as defined by ANSI Draft
            Standard T1M1.3/90 - 027R2[15], encountered by a
            DS1 CSU in the current 15 minute interval."
    ::= { ds1CurrentEntry 3 }

ds1CurrentSEFSs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of
            Severely Errored Framing Seconds, as defined by
            ANSI Draft Standard T1M1.3/90 - 027R2[15],
            encountered by a DS1 CSU in the current 15 minute
            interval."
    ::= { ds1CurrentEntry 4 }

ds1CurrentUASs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of
            Unavailable Seconds, as defined by ANSI Draft
            Standard T1M1.3/90 - 027R2[15], encountered by a
            DS1 CSU in the current 15 minute interval."
    ::= { ds1CurrentEntry 5 }


ds1CurrentCSSs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of
            Controlled Slip Seconds, as defined by ANSI Draft
            Standard T1M1.3/90 - 027R2[15], encountered by a
            DS1 CSU in the current 15 minute interval."
    ::= { ds1CurrentEntry 6 }

ds1CurrentBPVs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of Bipolar
            Violations, as defined by ANSI Draft Standard
            T1M1.3/90 - 027R2[15], encountered by a DS1 CSU in
            the current 15 minute interval."
    ::= { ds1CurrentEntry 7 }

ds1CurrentCVs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of Code
            Violation Error Events, as defined by ANSI Draft
            Standard T1M1.3/90 - 027R2[15], encountered by a
            DS1 CSU in the current 15 minute interval.

            Note that D4 and G.704 (section 2.1.3.2)
            interfaces do not support Code Violation Error
            Events.  Accordingly, such agents may treat this
            object as having an ACCESS clause value of not-
            accessible."
    ::= { ds1CurrentEntry 8 }


-- the DS1 Total group

-- Implementation of this group is mandatory for all systems
-- that attach to a ds1.

-- It is recognized that some currently deployed CSUs do not
-- record the entire set of statistics specified in this
-- group.  Accordingly, some agents queried for these objects

-- may treat these objects as having an ACCESS clause value
-- of not-accessible.

-- The DS1 Total Table contains the cumulative sum of the
-- various statistics for the 24 hour interval preceding the
-- first valid interval in the ds1CurrentTable.

ds1TotalTable OBJECT-TYPE
    SYNTAX  SEQUENCE OF DS1TotalEntry
    ACCESS  not-accessible
    STATUS  mandatory
    DESCRIPTION
            "The DS1 Total table.  24 hour interval."
    ::= { ds1 4 }

ds1TotalEntry OBJECT-TYPE
    SYNTAX  DS1TotalEntry
    ACCESS  not-accessible
    STATUS  mandatory
    DESCRIPTION
            "An entry in the DS1 Total table."
    INDEX   { ds1TotalIndex }
    ::= { ds1TotalTable 1 }

DS1TotalEntry ::=
    SEQUENCE {
        ds1TotalIndex
            INTEGER,
        ds1TotalESs
            Counter,
        ds1TotalSESs
            Counter,
        ds1TotalSEFSs
            Counter,
        ds1TotalUASs
            Counter,
        ds1TotalCSSs
            Counter,
        ds1TotalBPVs
            Counter,
        ds1TotalCVs
            Counter
    }

ds1TotalIndex OBJECT-TYPE
    SYNTAX  INTEGER
    ACCESS  read-only
    STATUS  mandatory

    DESCRIPTION
            "The index value which uniquely identifies the CSU
            to which this entry is applicable.  The interface
            identified by a particular value of this index is
            the same interface as identified by the same value
            an ds1CSUIndex object instance."
    ::= { ds1TotalEntry 1 }

ds1TotalESs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of Errored
            Seconds, as defined by ANSI Draft Standard
            T1M1.3/90 - 027R2[15], encountered by a DS1 CSU in
            the previous 24 hour interval"
    ::= { ds1TotalEntry 2 }

ds1TotalSESs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of
            Severely Errored Seconds, as defined by ANSI Draft
            Standard T1M1.3/90 - 027R2[15], encountered by a
            DS1 CSU in the previous 24 hour interval."
    ::= { ds1TotalEntry 3 }

ds1TotalSEFSs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of
            Severely Errored Framing Seconds, as defined by
            ANSI Draft Standard T1M1.3/90 - 027R2[15],
            encountered by a DS1 CSU in the previous 24 hour
            interval."
    ::= { ds1TotalEntry 4 }

ds1TotalUASs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of

            Unavailable Seconds, as defined by ANSI Draft
            Standard T1M1.3/90 - 027R2[15], encountered by a
            DS1 CSU in the previous 24 hour interval."
    ::= { ds1TotalEntry 5 }

ds1TotalCSSs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of
            Controlled Slip Seconds, as defined by ANSI Draft
            Standard T1M1.3/90 - 027R2[15], encountered by a
            DS1 CSU in the previous 24 hour interval."
    ::= { ds1TotalEntry 6 }

ds1TotalBPVs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of Bipolar
            Violations, as defined by ANSI Draft Standard
            T1M1.3/90 - 027R2[15], encountered by a DS1 CSU in
            the previous 24 hour interval."
    ::= { ds1TotalEntry 7 }

ds1TotalCVs OBJECT-TYPE
    SYNTAX  Counter
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The counter associated with the number of Code
            Violation Error Events, as defined by ANSI Draft
            Standard T1M1.3/90 - 027R2[15], encountered by a
            DS1 CSU in the previous 24 hour interval.

            Note that D4 and G.704 (section 2.1.3.2)
            interfaces do not support Code Violation Error
            Events.  Accordingly, such agents may treat this
            object as having an ACCESS clause value of not-
            accessible."
    ::= { ds1TotalEntry 8 }


-- the DS1 Fractional group

-- Implementation of this group is mandatory for those

-- systems utilizing a fractional DS1 capability


-- The DS1 fractional table contains identifies which DS1
-- channels associated with a CSU are being used to support a
-- logical interface, i.e., an entry in the interfaces table
-- from the Internet-standard MIB.  For Clear Channel
-- implementations, exactly one ifTable entry corresponds to
-- the CSU being managed.  In this very typical case, the
-- variable ds1Index indicates the value of ifIndex which
-- corresponds to the interface being supported by a
-- particular CSU.

-- However, for fractional DS1 implementations, the
-- correspondent value of ds1Index is 0, and for each DS1
-- channel supporting a logical interface, there is an entry
-- in the DS1 fractional table which names a value for
-- ifIndex.
--
--      For ds1ESF, ds1D4, and ds1ANSI-ESF, there are 24 legal
--      channels, numbered 1 through 24.
--
--      For G.704, there are 32 legal channels, numbered 1
--      through 32.  ds1G704 can carry user data in channels 2
--      through 32, channel 1 being an overhead channel.
--      ds1G704-CRC can carry user data in channels 2 through
--      16 and 18 through 32, channels 1 and 17 being overhead
--      channels.

ds1FracTable OBJECT-TYPE
    SYNTAX  SEQUENCE OF DS1FracEntry
    ACCESS  not-accessible
    STATUS  mandatory
    DESCRIPTION
            "The DS1 Fractional table."
    ::= { ds1 5 }

ds1FracEntry OBJECT-TYPE
    SYNTAX  DS1FracEntry
    ACCESS  not-accessible
    STATUS  mandatory
    DESCRIPTION
            "An entry in the DS1 Fractional table."
    INDEX   { ds1FracIndex, ds1FracNumber }
    ::= { ds1FracTable 1 }

DS1FracEntry ::=
    SEQUENCE {

        ds1FracIndex
            INTEGER,
        ds1FracNumber
            INTEGER (1..32),
        ds1FracIfIndex
            INTEGER
    }

ds1FracIndex OBJECT-TYPE
    SYNTAX  INTEGER
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The index value which uniquely identifies the CSU
            to which this entry is applicable.  The interface
            identified by a particular value of this index is
            the same interface as identified by the same value
            an ds1CSUIndex object instance."
    ::= { ds1FracEntry 1 }

ds1FracNumber OBJECT-TYPE
    SYNTAX  INTEGER (1..32)
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "The channel number for this entry."
    ::= { ds1FracEntry 2 }

ds1FracIfIndex OBJECT-TYPE
    SYNTAX  INTEGER
    ACCESS  read-only
    STATUS  mandatory
    DESCRIPTION
            "An index value that uniquely identifies an
            interface to a ds1.  The interface identified by a
            particular value of this index is the same
            interface as identified by the same value an
            ifIndex object instance."
    ::= { ds1FracEntry 3 }

END