FYI: What new MIB would look like

Steven Waldbusser <waldbusser+@cmu.edu> Thu, 17 February 1994 21:37 UTC

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From: Steven Waldbusser <waldbusser+@cmu.edu>
To: modemmgt@telebit.com
Subject: FYI: What new MIB would look like

If there are no strong objections to the items I identified that we've
reached concensus on, and we are to reach concensus on my proposals,
this is what the resulting MIB would look like.  The change bars are
with respect to the last Internet-Draft.

Comments?

Steve





draft                          Modem MIB                January 14, 1994


                               Modem MIB
                  <draft-ietf-modemmgt-mdmmib-02.txt>                     |

                           February 17, 1994                              |


         Jim Barnes, Les Brown, Rick Royston, Steven Waldbusser           |





                          Status of this Memo

This document is an Internet Draft.  Internet Drafts are working
documents of the Internet Engineering Task Force (IETF), its Areas, and
its Working Groups.  Note that other groups may also distribute working
documents as Internet Drafts.

Internet Drafts are valid for a maximum of six months and may be
updated, replaced, or obsoleted by other documents at any time.  It is
inappropriate to use Internet Drafts as reference material or to cite
them other than as a "work in progress".



























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1.  Introduction

This memo defines an experimental portion of the Management Information
Base (MIB) for use with network management protocols in the Internet
community.  In particular, it describes managed objects used for
managing dial-up modems and similar dial-up devices.  This MIB module
provides a set of objects that are the minimum necessary to provide the
ability to monitor and control those devices, and is consistent with the
SNMP framework and existing SNMP standards.









































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2.  The SNMPv2 Network Management Framework

The SNMPv2 Network Management Framework consists of four major
components.  They are:

o    RFC 1442 which defines the SMI, the mechanisms used for describing
     and naming objects for the purpose of management.

o    RFC 1213 defines MIB-II, the core set of managed objects for the
     Internet suite of protocols.

o    RFC 1445 which defines the administrative and other architectural
     aspects of the framework.

o    RFC 1448 which defines the protocol used for network access to
     managed objects.

The Framework permits new objects to be defined for the purpose of
experimentation and evaluation.


2.1.  Object Definitions

Managed objects are accessed via a virtual information store, termed the
Management Information Base or MIB.  Objects in the MIB are defined
using the subset of Abstract Syntax Notation One (ASN.1) defined in the
SMI.  In particular, each object object type is named by an OBJECT
IDENTIFIER, an administratively assigned name.  The object type together
with an object instance serves to uniquely identify a specific
instantiation of the object.  For human convenience, we often use a
textual string, termed the descriptor, to refer to the object type.



















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3.  Definitions

Modem-MIB DEFINITIONS ::= BEGIN


IMPORTS
    MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE,
    experimental, Counter32, Integer32
        FROM SNMPv2-SMI
    DisplayString, TruthValue, TimeInterval FROM SNMPv2-TC
    MODULE-COMPLIANCE, OBJECT-GROUP
        FROM SNMPv2-CONF;


-- Upon publication as RFC, delete this comment and the next line and     +
-- change the reference of { mdmMibDraft 1 } to { mib-2 X }.              +
-- This will result in changing:                                          +
-- 1 3 6 1 3 49 mdmMib(1)    to:                                          +
-- 1 3 6 1 2  1 mdmMib(X)                                                 +
-- This will make it easier to translate prototypes to                    +
-- the standard namespace.                                                +
mdmMibDraft OBJECT IDENTIFIER ::= { experimental 49 }                     +

mdmMIB MODULE-IDENTITY
    LAST-UPDATED "9401160000Z"
    ORGANIZATION "IETF Modem Management Working Group"
    CONTACT-INFO
            "        Steven Waldbusser
         Postal: Carnegie Mellon University
                     4910 Forbes Ave
                  Pittsburgh, PA, 15213

                Tel: 412-268-6628
                Fax: 412-268-4987
             E-mail: waldbusser@cmu.edu"
    DESCRIPTION
            "The MIB module for management of dial-up modems."
    ::= { mdmMibDraft 1 }                                                 |

mdmMIBObjects OBJECT IDENTIFIER ::= { mdmMIB 1 }










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-- conformance information

mdmConformance OBJECT IDENTIFIER ::= { mdmMIB 2 }

mdmCompliances OBJECT IDENTIFIER ::= { mdmConformance 1 }                 |
mdmGroups      OBJECT IDENTIFIER ::= { mdmConformance 2 }                 |


-- compliance statements

mdmCompliance MODULE-COMPLIANCE
    STATUS  current
    DESCRIPTION
            "The compliance statement for SNMPv2 entities which
            implement the modem MIB."

    MODULE  -- this module
        MANDATORY-GROUPS { mdmIDGroup, mdmLineInterfaceGroup,
                mdmDTEInterfaceGroup, mdmCallControlGroup,
                mdmStatisticsGroup }

    ::= { mdmCompliances 1 }




























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-- units of conformance

mdmIDGroup    OBJECT-GROUP
    OBJECTS   { mdmIDManufacturerOID, mdmIDProductDetails }
    STATUS    current
    DESCRIPTION
            "A collection of objects that identify the manufacturer and
            model information for a modem."
    ::= { mdmGroups 1 }

mdmLineInterfaceGroup    OBJECT-GROUP
    OBJECTS { mdmLineCarrierLossTime,                                     |
        mdmLineCapabilitiesID,                                            |
        mdmLineCapabilitiesEnableRequested,
        mdmLineCapabilitiesEnableGranted }
    STATUS  current
    DESCRIPTION
            "A collection of objects that describe the configuration and
            state of the modem's line interface."
    ::= { mdmGroups 2 }

mdmDTEInterfaceGroup    OBJECT-GROUP
    OBJECTS { mdmDTEActionDTROnToOff, mdmDTEActionDTROffToOn,             |
                mdmDTESyncTimingSource, mdmDTESyncAsyncMode,
                mdmDTEInactivityTimeout }
    STATUS      current
    DESCRIPTION
            "A collection of objects that describe the configuration and
            state of the modem's DTE interface."
    ::= { mdmGroups 3 }

mdmCallControlGroup    OBJECT-GROUP
    OBJECTS { mdmCCAutoAnswerEnable, mdmCCRingsBeforeAnswer,
        mdmCCCallSetUpFailTimer, mdmCCResultCodeEnable,                   |
        mdmCCEscapeAction, mdmCCCallDuration,                             |
        mdmCCConnectFailReason, mdmCCStoredDialStringIndex,               |
        mdmCCStoredDialString }                                           |
    STATUS  current
    DESCRIPTION
            "A collection of objects that describe the configuration of
            call control capabilities on the modem and the status of
            calls placed with this modem."
    ::= { mdmGroups 4 }

mdmErrorControlGroup   OBJECT-GROUP                                       +





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    OBJECTS { mdmECErrorControlUsed }                                     +
    STATUS  current                                                       +
    DESCRIPTION                                                           +
            "A collection of objects that describe the configuration and  +
            state of error control on a modem."                           +
    ::= { mdmGroups 5 }                                                   +

mdmDataCompressionGroup   OBJECT-GROUP                                    +
    OBJECTS { mdmDCDataCompressionUsed }                                  +
    STATUS  current                                                       +
    DESCRIPTION                                                           +
            "A collection of objects that describe the configuration and  +
            state of data compression on a modem."                        +
    ::= { mdmGroups 6 }                                                   +

mdmSignalConvertorGroup   OBJECT-GROUP                                    +
    OBJECTS { mdmSCCurrentLineRate, mdmSCModulationSchemeUsed }           +
    STATUS  current                                                       +
    DESCRIPTION                                                           +
            "A collection of objects that describe the configuration and  +
            state of error control on a modem."                           +
    ::= { mdmGroups 7 }                                                   +

mdmStatisticsGroup  OBJECT-GROUP
    OBJECTS { mdmStatsRingNoAnswers,                                      |
        mdmStatsIncomingConnectionFailures,                               |
        mdmStatsIncomingConnectionCompletions,                            |
        mdmStatsUnsuccessefullDialAttempts,                               |
        mdmStatsOutgoingConnectionFailures,
        mdmStatsOutgoingConnectionCompletions,                            |
        mdmStatsRetrains,                                                 |
        mdmStats2400OrLessConnections, mdmStats2400To14400Connections,
        mdmStatsGreaterThan14400Connections,
        mdmStatsErrorControlledConnections,
        mdmStatsCompressedConnections,
        mdmStatsSentOctets, mdmStatsReceivedOctets,
        mdmStatsSentDataFrames, mdmStatsReceivedDataFrames,
        mdmStatsResentFrames, mdmStatsErrorFrames }
    STATUS  current
    DESCRIPTION
            "A collection of objects that describe the state of calls on
            this modem."
    ::= { mdmGroups 8 }                                                   |

mdmNumber OBJECT-TYPE





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    SYNTAX  Integer32
    MAX-ACCESS  read-only
    STATUS  current
    DESCRIPTION
            "The number of modem rows in the modem table.  This value
            defines the maximum value of the mdmIndex object."
    ::= { mdmMIBObjects 1 }

-- The modem ID table.

mdmIDTable OBJECT-TYPE
    SYNTAX      SEQUENCE OF MdmIDEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "The base table for the modems managed by this MIB.  The
            mdmLineTable, mdmDTEInterfaceTable, mdmCallControlTable, and
            mdmStatsTable all augment the rows defined in this table."
    ::= { mdmMIBObjects 2 }

mdmIDEntry OBJECT-TYPE
    SYNTAX      MdmIDEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "Entries in this table are created only by the agent. One
            entry exists for each modem managed by the agent."
    INDEX       { mdmIndex }
    ::= { mdmIDTable 1 }

MdmIDEntry ::= SEQUENCE {
    mdmIndex                Integer32,
    mdmIDManufacturerOID    OBJECT IDENTIFIER,
    mdmIDProductDetails     DisplayString
}

mdmIndex OBJECT-TYPE
    SYNTAX      Integer32
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "A unique number for each modem that ranges from 1 to
            mdmNumber.  The value must remain constant at least from one
            re-initialization of the network management agent to the
            next."





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    ::= { mdmIDEntry 1 }

mdmIDManufacturerOID OBJECT-TYPE
    SYNTAX      OBJECT IDENTIFIER
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "This value is intended to identify the manufacturer, model,
            and version of this modem.  This may be used to identify the
            existance of enterprise specific functions and behaviours."
    REFERENCE
            "V.58 attribute manufacturerID subfield ManufacturerOI"
    ::= { mdmIDEntry 2 }

mdmIDProductDetails OBJECT-TYPE
    SYNTAX      DisplayString (SIZE (0..79))
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "A textual description of this device, including the
            manufacturer's name, modem model name, hardware revision,
            firmware revision, and optionally, its serial number.  The
            exact format of this description is defined by the vendor.
            This description may only contain characters from the NVT
            ASCII character set."
    REFERENCE
            "V.58 attribute manufacturerID subfield productDetails"
    ::= { mdmIDEntry 3 }

-- The modem Line Interface Table

mdmLineTable OBJECT-TYPE
    SYNTAX      SEQUENCE OF MdmLineEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "The modem Line Table augments the modem ID table."
    ::= { mdmMIBObjects 3 }

mdmLineEntry OBJECT-TYPE
    SYNTAX      MdmLineEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "Entries in this table are created only by the agent. One





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            entry exists for each modem managed by the agent."
    AUGMENTS    { mdmIDEntry }
    ::= { mdmLineTable 1 }

MdmLineEntry ::= SEQUENCE {
    mdmLineCarrierLossTime          Integer32                             |
    mdmLineState                    INTEGER,                              |
}

mdmLineCarrierLossTime OBJECT-TYPE                                        |
    SYNTAX      Integer32 (1..254)                                        |
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
            "Duration in 10ths of a second the modem waits after loss of  |
            carrier before hanging up.  If this value is set to `255',    |
            the modem will not hang up opon loss of carrier.  This        |
            allows the modem to distinguish between a momentary lapse in  |
            line quality and a true disconnect and can be useful to tune  |
            the tolerance of the modem to lines of poor quality."         |
    REFERENCE "V.58 lineSignalFailDisconnectTimer"                        |
    ::= { mdmLineEntry 1 }

mdmLineState OBJECT-TYPE                                                  |
    SYNTAX      INTEGER {                                                 |
                    unknown(1),                                           |
                    on-hook(2),                                           |
                    off-hook(3),  -- and not connected                    |
                    connected(4),                                         |
                    busied-out(5),                                        |
                    reset(6)                                              |
                }                                                         |
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
            "Allows the inspection and alteration of the state of the     |
            modem.  Management commands may change the state to `on-      |
            hook', `busied-out', or `reset' from any state.  No other     |
            alterations are permitted from the management protocol.       |
            When this object is set to reset, the modem shall be reset    |
            and the value will change to the modem's new, implementation  |
            dependent state."                                             |
    ::= { mdmLineEntry 2 }                                                -

mdmLineCapabilitiesTable OBJECT-TYPE                                      -





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    SYNTAX      SEQUENCE OF MdmLineCapabilitiesEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "A list of protocol capabilities for this modem."
    ::= { mdmMIBObjects 4 }

mdmLineCapabilitiesEntry OBJECT-TYPE
    SYNTAX      MdmLineCapabilitiesEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "A listing of a protocol that this modem is capable of.
            Entries in this table are created only by the agent.  One
            entry exists for each protocol that the modem is capable of,
            regardless of whether that protocol is enabled or not.

            This table is useful for providing an inventory of the
            capabilities on a modem, and allowing the manager to enable
            or disable capabilities from the menu of available
            possibilities.  Row creation is not required to enable or
            disable capabilities."
    INDEX       { mdmIndex, mdmLineCapabilitiesIndex }
    ::= { mdmLineCapabilitiesTable 1 }

MdmLineCapabilitiesEntry ::= SEQUENCE {
    mdmLineCapabilitiesIndex            Integer32,
    mdmLineCapabilitiesID               OBJECT IDENTIFIER,
    mdmLineCapabilitiesEnableRequested  INTEGER,
    mdmLineCapabilitiesEnableGranted    INTEGER
}

mdmLineCapabilitiesIndex OBJECT-TYPE
    SYNTAX      Integer32
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "A unique index for this capabilities entry."
    ::= { mdmLineCapabilitiesEntry 1 }

mdmLineCapabilitiesID OBJECT-TYPE
    SYNTAX      OBJECT IDENTIFIER
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION





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            "An identifier for this capability.  Standard protocol
            capabilities will have identifiers registered in this
            document or other companion standards documents.
            Proprietary protocol capabilities will be registered by
            their respective organization.  All capabilities, standard
            or vendor-specific, shall be registered in this table."
    ::= { mdmLineCapabilitiesEntry 2 }

mdmLineCapabilities   OBJECT IDENTIFIER ::= { mdmLineCapabilitiesTable 2 }
mdmLineCapabilitiesV21     OBJECT IDENTIFIER ::= { mdmLineCapabilities 1 }|
mdmLineCapabilitiesV22     OBJECT IDENTIFIER ::= { mdmLineCapabilities 2 }|
mdmLineCapabilitiesV22bis  OBJECT IDENTIFIER ::= { mdmLineCapabilities 3 }|
mdmLineCapabilitiesV23CC   OBJECT IDENTIFIER ::= { mdmLineCapabilities 4 }|
mdmLineCapabilitiesV23SC   OBJECT IDENTIFIER ::= { mdmLineCapabilities 5 }|
mdmLineCapabilitiesV25bis  OBJECT IDENTIFIER ::= { mdmLineCapabilities 6 }|
mdmLineCapabilitiesV26bis  OBJECT IDENTIFIER ::= { mdmLineCapabilities 7 }|
mdmLineCapabilitiesV26ter  OBJECT IDENTIFIER ::= { mdmLineCapabilities 8 }|
mdmLineCapabilitiesV27ter  OBJECT IDENTIFIER ::= { mdmLineCapabilities 9 }|
mdmLineCapabilitiesV32     OBJECT IDENTIFIER ::= { mdmLineCapabilities 10 }|
mdmLineCapabilitiesV32bis  OBJECT IDENTIFIER ::= { mdmLineCapabilities 11 }|
mdmLineCapabilitiesV32terbo OBJECT IDENTIFIER ::= { mdmLineCapabilities 12 }|
mdmLineCapabilitiesVFC     OBJECT IDENTIFIER ::= { mdmLineCapabilities 13 }|
mdmLineCapabilitiesV34     OBJECT IDENTIFIER ::= { mdmLineCapabilities 14 }|
mdmLineCapabilitiesV42     OBJECT IDENTIFIER ::= { mdmLineCapabilities 15 }|
mdmLineCapabilitiesV42bis  OBJECT IDENTIFIER ::= { mdmLineCapabilities 16 }|
mdmLineCapabilitiesMNP4    OBJECT IDENTIFIER ::= { mdmLineCapabilities 17 }|
mdmLineCapabilitiesMNP5    OBJECT IDENTIFIER ::= { mdmLineCapabilities 18 }|
mdmLineCapabilitiesV29     OBJECT IDENTIFIER ::= { mdmLineCapabilities 19 }|
mdmLineCapabilitiesV33     OBJECT IDENTIFIER ::= { mdmLineCapabilities 20 }|
mdmLineCapabilitiesBell208 OBJECT IDENTIFIER ::= { mdmLineCapabilities 21 }|

mdmLineCapabilitiesEnableRequested OBJECT-TYPE
    SYNTAX      INTEGER {
                    disabled(1),
                    optional(2),
                    preferred(3)
                }
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
            "The requested configuration of this capability.  If this
            value is 'disabled(1)', this is a request to disable this
            protocol.  If this value is 'preferred(3)', this is a
            request to enable this protocol, and to prefer it in any
            negotiation over other appropriate protocols that have a





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            value of 'optional(2)'."
    DEFVAL      { preferred }
    ::= { mdmLineCapabilitiesEntry 3 }

mdmLineCapabilitiesEnableGranted OBJECT-TYPE
    SYNTAX      INTEGER {
                    disabled(1),
                    optional(2),
                    preferred(3)
                }
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The actual configuration of this capability.  The agent
            shall attempt to set this as close as possible to the
            associated mdmLineCapabilitiesEnableRequested value.  The
            agent shall make this determination in an implementation-
            specific manner that may take into account the configuration
            of other capabilities or other considerations.  The modem
            will choose in an implementation-specific manner between
            multiple mutually-exclusive capabilities that each have the
            same (non-disabled) value.  However, the modem must prefer
            all capabilities with a value of 'preferred(3)' over all
            capabilities with a value of 'optional(2)'."
    ::= { mdmLineCapabilitiesEntry 4 }


-- DTE Interface Table

mdmDTEInterfaceTable OBJECT-TYPE
    SYNTAX      SEQUENCE OF MdmDTEInterfaceEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "The modem DTE Interface Table augments the modem ID table."
    ::= { mdmMIBObjects 5 }

mdmDTEInterfaceEntry OBJECT-TYPE
    SYNTAX      MdmDTEInterfaceEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "Entries in this table are created only by the agent. One
            entry exists for each modem managed by the agent."
    AUGMENTS    { mdmIDEntry }





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    ::= { mdmDTEInterfaceTable 1 }

MdmDTEInterfaceEntry ::= SEQUENCE {
    mdmDTEActionDTROnToOff      INTEGER,                                  |
    mdmDTEActionDTROffToOn      INTEGER,                                  |
    mdmDTESyncTimingSource      INTEGER,
    mdmDTESyncAsyncMode         INTEGER,
    mdmDTEInactivityTimeout     Integer32
}

mdmDTEActionDTROnToOff OBJECT-TYPE                                        |
    SYNTAX      INTEGER {
                    ignore(1),
                    escapeToCommandMode(2),
                    disconnectCall(3),
                    resetModem(4)
                }
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
            "Defines the action the modem will take when DTR drops.

            If the value is set to ignore(1), the modem takes no action
            when DTR drops.  Typically, mdmDTEActionDTROffToOn would      |
            also be set to                                                |
            ignore(1) if this object is set to ignore(1).

            If the value is escapeToCommandMode(2), the modem remains     |
            connected and enters                                          |
            command mode.  If the value is disconnectCall(3), the
            current call (if any) is terminated and the modem will not    |
            auto-answer while DTR is off.  If the value is                |
            resetModem(4),                                                |
            the current call (if any) is terminated and the modem is
            reset."
    DEFVAL      { disconnectcall }
    ::= { mdmDTEInterfaceEntry 1 }

mdmDTEActionDTROffToOn OBJECT-TYPE                                        |
    SYNTAX      INTEGER {
                    ignore(1),
                    enableDial(2),
                    autoAnswerEnable(3),
                    establishConnection(4)
                }





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    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
            "Defines the action the modem will take when DTR is raised.

            If the value is set to ignore(1), the modem takes no action   |
            when DTR is raised.  Typically, mdmDTEActionDTROnToOff        |
            would also be set to ignore(1) if this object is set to
            ignore(1).

            If the value is set to enableDial(2), the modem prepares to   |
            dial an outgoing call.  If the value is set to                |
            autoAnswerEnable(3), the modem will be configured to answer   |
            any incoming call.  If the value is set to                    |
            establishConnection(4), the modem dials an implementation     |
            specific number.                                              |

            Immediately after any reset or power-on of the modem, if the
            DTR is high, the action specified here will be executed."
    DEFVAL      { autoAnswerEnable }
    ::= { mdmDTEInterfaceEntry 2 }

mdmDTESyncTimingSource OBJECT-TYPE
    SYNTAX      INTEGER {
                    internal(1),
                    external(2),
                    loopback(3),
                    network(4)
                }
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
            "The clock source for synchronous transmissions.  If set to
            internal(1), the modem is the clock source and sends the
            clock signals to the DTE.  If set to external(2), the
            transmit clock signals are provided by the DTE.  If
            loopback(3), the modem receiver clock is used for the
            transmit clock.  If network(4), the clock signals are
            supplied by the DCE interface.

            If the modem is not in synchronous mode, setting this object
            will have no effect on the current operations of the modem."
    REFERENCE   "V.58 transmitClockSource"
    DEFVAL      { internal }
    ::= { mdmDTEInterfaceEntry 3 }





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mdmDTESyncAsyncMode OBJECT-TYPE
    SYNTAX      INTEGER {
                    async(1),
                    sync(2),
                    syncAfterDial(3)
                }
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
            "The operational mode of the modem.  If the value is
            syncAfterDial(3), the modem will accept commands in
            asynchronous mode and change to synchronous mode to pass
            data after a dial sequence has been executed."
    DEFVAL      { async }
    ::= { mdmDTEInterfaceEntry 4 }

mdmDTEInactivityTimeout OBJECT-TYPE
    SYNTAX      Integer32 (0..65535)
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
            "The amount of idle time in minutes that the modem will wait
            before disconnecting a connection.  When a call is connected
            and no data is transferred (continuous marking condition) on
            both circuits 103 and 104 for the specified time, the DCE
            disconnects the call. If the value is 0, no idle disconnect
            will occur.  This function applies to asynchronous dial       |
            operations only."                                             |
    REFERENCE   "V.58 inactivityTimerSelect"
    DEFVAL { 0 }
    ::= { mdmDTEInterfaceEntry 5 }

-- The Call Control Table

mdmCallControlTable OBJECT-TYPE
    SYNTAX      SEQUENCE OF MdmCallControlEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "The modem Call Control Table augments the modem ID table."
    ::= { mdmMIBObjects 6 }

mdmCallControlEntry OBJECT-TYPE
    SYNTAX      MdmCallControlEntry
    MAX-ACCESS  not-accessible





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    STATUS      current
    DESCRIPTION
            "Entries in this table are created only by the agent. One
            entry exists for each modem managed by the agent."
    AUGMENTS    { mdmIDEntry }
    ::= { mdmCallControlTable 1 }

MdmCallControlEntry ::= SEQUENCE {
    mdmCCRingsBeforeAnswer      Integer32,                                -
    mdmCCCallSetUpFailTimer     Integer32,
    mdmCCResultCodeEnable       INTEGER,                                  -
    mdmCCEscapeAction           INTEGER,
    mdmCCCallDuration           Integer32,
    mdmCCConnectFailReason      INTEGER                                   |
}

mdmCCRingsBeforeAnswer OBJECT-TYPE                                        -
    SYNTAX      Integer32
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
            "Determines which ring the modem will answer the phone on
            when mdmCCAutoAnswerEnable is set to enable. If this value    |
            is `0', the modem will not go offhook and answer a call when  |
            a ring signal is detected."                                   |
    REFERENCE   "V.58 ringsBeforeAnswer"
    DEFVAL      { 1 }
    ::= { mdmCallControlEntry 1 }                                         |

mdmCCCallSetUpFailTimer OBJECT-TYPE
    SYNTAX      Integer32 (0..255)
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
            "This parameter specifies the amount of time, in seconds,
            that the modem shall allow between either answering a call
            (automatically or manually) or completion of dialing, and
            establishment of a connection with the remote modem. If no
            connection is established during this time, the modem
            disconnects from the line and returns a result code
            indicating the cause of the disconnection. In TIA-602, this
            is controlled by the value in the S7 register."
    REFERENCE   "V.58 callSetUpFailTimer"
    DEFVAL      { 30 }
    ::= { mdmCallControlEntry 2 }                                         |





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mdmCCResultCodeEnable OBJECT-TYPE                                         |
    SYNTAX      INTEGER {
                    disabled(1),
                    numericEnabled(2),                                    |
                    verboseEnabled(3)                                     |
                }
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION                                                           -
            "When disabled, the DCE shall issue no 'result codes' of any
            kind to the DTE either in response to unsolicited events
            (eg. ring signal), or commands. In TIA-602, this is           |
            controlled by the ATQ command.  When numericEnabled, the DCE  |
            shall issue result codes in numeric form.  When               |
            verboseEnabled, the DCE shall issue result codes in a         |
            verbose, textual form."                                       |
    REFERENCE   "V.58 responseModeSelect"
    DEFVAL      { verboseEnabled }                                        |
    ::= { mdmCallControlEntry 3 }                                         |

mdmCCEscapeAction OBJECT-TYPE
    SYNTAX      INTEGER {
                    ignoreEscape(1),
                    hangUp(2),
                    enterCommandMode(3)
                }
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
            "The modem's action upon successfully recognizing the
            'escape to command mode' character sequence."
    DEFVAL { ignoreEscape }
    ::= { mdmCallControlEntry 4 }                                         |

-- Call status portion of the call control table

mdmCCCallDuration OBJECT-TYPE
    SYNTAX      Integer32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Present or last completed connection time in seconds. If
            there have been no previous connections this value should be
            -1."
    ::= { mdmCallControlEntry 5 }                                         |





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mdmCCConnectionFailReason OBJECT-TYPE                                     |
    SYNTAX      INTEGER {
                    other(1),
                    unknown(2), -- Use this if no previous call since reset

                    managementCommand(3),

                    inactivityTimerExpired(4),

                    dtrDrop(5),  -- Ref: V.58 cct108TurnedOff

                    callSetupFailTimerExpired(6),
                    noAnswer(7),
                    noCarrier(8),
               -- how are noAnswer and noCarrier differentiated
               -- from callSetupFailTimerExpired?
                    loopCurrentInterrupted(9),
               -- same as loopLoss(12) in last draft?
                    noDialTone(10),
                    voiceDetected(11),
                    lineBusy(12), -- Ref: V.58 engagedTone
                    noAnswerTone(13),

                    carrierLost(14),
                    trainingFailed(15),
                    noModulationInCommon(16),
                    invalidSpeed(17),
                    retrainFailed(18),
                    gstnCleardownReceived(19),
                -- same as v32Cleardown in last draft?
                    faxDetected(20),

                    anyKeyAbort(21),
                    dteHangupCommand(22),
                    escapeSequence(23),
                    dteResetCommand(24),
                    linkDisconnectMsgReceived(25),

                    retransmitLimit(26), -- Ref: V.58 n400Exceeded
                    negotiationFailed(27),
                    v42SabmeTimeout(28),
                    v42BreakTimeout(29),
                    v42DisconnectCmd(30),
                    v42IdExchangeFail(31),
                    v42BadSetup(32),





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                    v42InvalidCodeWord(33),
                    v42StringToLong(34),
                    v42InvalidCommand(35),

                    v42BisLossOfSynchronization(36),
                    mnpIncompatible(37)
                }
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "Indicates the reason that the last connection or connection
            attempt failed. The following explains the meaning of each
            reason code.
            other:
                This code is selected when no other code is applicable.
            unknown:
                This code is selected when the failure reason is unknown.
            managementCommand:
                The network management system has issued a command to the
                modem, for example, to initiate a dial call, a redial, or
                a dial disconnect.
            inactivityTimerExpired:
                See the description under the 'mdmDTEInactivityTimeout'
                object.
            dtrDrop:
                DTR has been turned off while the modem is strapped to
                disconnect on DTR drop, for example, as specified
                in TIA-602 (AT&D2).
            callSetupFailTimerExpired:
                The call establishment timer, for example, as specified
                in TIA-602 (S7 register) has expired.
            noAnswer: XXX
            noCarrier: XXX
            loopCurrentInterrupted:
                For a GSTN connection, usually indicates that the line
                interface cable has been disconnected from the modem or
                the wall socket.
            noDialTone:
                If the modem is strapped to monitor for call progress tones,
                for example, as specified in TIA-602 (ATX4), the modem has
                failed to detect dial tone while attempting to dial a number.
            voiceDetected: XXX
            lineBusy:
                Busy signal is detected while busy signal detection is enabled,
                for example, as specified in TIA-602 (ATX4), or while





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                the 'W' or '@' dial modifier is used.
            noAnswerTone: XXX
            carrierLost:
                Indicates that the modem has disconnected due to detection of
                loss of carrier, providing the modem has been strapped
                accordingly. In TIA-602, the S10 register determines the time
                that loss of carrier must be detected before the modem
                disconnects.
            trainingFailed:
                Indicates that the modems did not successfully train and reach
                data mode on the previous connection.
            noModulationInCommon:
                Indicates that, during call establishment, the modems
                determined that they had no common modulation.
            invalidSpeed: XXX
            retrainFailed:
                Indicates that, although the modems did reach data mode on
                the previous connection, they failed to reach data mode during
                a subsequent retrain attempt.
            gstnCleardownReceived:
                Indicates that a GSTN cleardown code was received from the
                remote modem (for example, a V.32 rate code with the rate bits
                all cleared).
            faxDetected: XXX
            anyKeyAbort:
                Indicates that the previous call was aborted before data mode
                was reached, because the modem (either calling or answering)
                received an extra character from the DTE.
            dteHangupCommand:
                Indicates that, while in command state, the modem received
                a hangup command, for example, as specified in TIA-602 (ATH).
            escapeSequence: XXX
            dteResetCommand: XXX
            linkDisconnectMsgReceived:
            retransmitLimit:
                Indicates that, while in V.42 error correcting mode, the
                allowable number of retransmission attempts for any particular
                frame was exceeded.
            negotiationFailed:
                Indicates that, while configured for error correcting only
                mode,the modems failed to successfully negotiate an error
                correcting link.
            v42SabmeTimeout: XXX
            v42BreakTimeout: XXX
            v42DisconnectCmd: XXX





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            v42IdExchangeFail: XXX
            v42BadSetup: XXX
            v42InvalidCodeWord: XXX
            v42StringToLong: XXX
            v42InvalidCommand: XXX
            v42BisLossOfSynchronization: XXX
            mnpIncompatible: XXX
            "
    REFERENCE   "V.58 callCleared"
    ::= { mdmCallControlEntry 6 }                                         |

-- The Stored Dial String table                                           |

mdmCCStoredDialStringTable OBJECT-TYPE                                    |
    SYNTAX      SEQUENCE OF MdmCCStoredDialStringEntry                    |
    MAX-ACCESS  not-accessible                                            |
    STATUS      current
    DESCRIPTION                                                           |
            "The table of stored dial strings."                           |
    REFERENCE   "V.58 telephoneNumbers"                                   |
    ::= { mdmMIBObjects 7 }                                               |

mdmCCStoredDialStringEntry OBJECT-TYPE                                    |
    SYNTAX      MdmCCStoredDialStringEntry                                |
    MAX-ACCESS  not-accessible                                            |
    STATUS      current
    DESCRIPTION
            "A stored dial string."                                       |
    INDEX  { mdmIndex, mdmCCStoredDialStringIndex }                       |
    ::= { mdmCCStoredDialStringTable 1 }                                  |

MdmCCStoredDialStringEntry ::= SEQUENCE {                                 |
    mdmCCStoredDialStringIndex     Integer32,                             |
    mdmCCStoredDialString          DisplayString                          |
}                                                                         |

mdmCCStoredDialStringIndex OBJECT-TYPE                                    |
    SYNTAX      Integer32 (0..65535)                                      |
    MAX-ACCESS  not-accessible                                            |
    STATUS      current
    DESCRIPTION                                                           |
            "The unique index of a particular dial string."               |
    ::= { mdmCCStoredDialStringEntry 1 }                                  |

mdmCCStoredDialString OBJECT-TYPE                                         |





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    SYNTAX      DisplayString (SIZE(0..64))                               |
    MAX-ACCESS  not-accessible                                            |
    STATUS      current
    DESCRIPTION                                                           |
            "A dial string stored in the modem."                          |
    ::= { mdmCCStoredDialStringEntry 2 }                                  |

-- The modem Error Correcting Group                                       |

mdmECTable OBJECT-TYPE                                                    |
    SYNTAX      SEQUENCE OF MdmECEntry                                    |
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "The modem error correcting table augments the modem ID       |
            table."                                                       |
    ::= { mdmMIBObjects 8 }                                               |

mdmECEntry OBJECT-TYPE                                                    |
    SYNTAX      MdmECEntry                                                |
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "Entries in this table are created only by the agent. One     |
            entry exists for each modem managed by the agent."            |
    AUGMENTS    { mdmIDEntry }                                            |
    ::= { mdmECTable 1 }                                                  |

MdmECEntry ::= SEQUENCE {                                                 |
    mdmECErrorControlUsed           OBJECT IDENTIFIER                     |
}

mdmECErrorControlUsed OBJECT-TYPE                                         |
    SYNTAX      OBJECT IDENTIFIER                                         |
    MAX-ACCESS  read-only                                                 |
    STATUS      current                                                   |
    DESCRIPTION                                                           |
            "Indicates the error control method used during the current   |
            or previous call.  This shall be one of the values for error  |
            control protocols registered in the capabilities table for    |
            this modem.  If no error control protocol is in use, this     |
            object shall have the value '{0 0}'."                         |
    REFERENCE   "V.58 errorControlActive"                                 |
    ::= { mdmECEntry 1 }                                                  |






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-- The modem Data Compression Group                                       |

mdmDCTable OBJECT-TYPE                                                    |
    SYNTAX      SEQUENCE OF MdmDCEntry                                    |
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "The modem data compression table augments the modem ID       |
            table."                                                       |
    ::= { mdmMIBObjects 9 }                                               |

mdmDCEntry OBJECT-TYPE                                                    |
    SYNTAX      MdmDCEntry                                                |
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "Entries in this table are created only by the agent. One     |
            entry exists for each modem managed by the agent."            |
    AUGMENTS    { mdmIDEntry }                                            |
    ::= { mdmDCTable 1 }                                                  |

MdmDCEntry ::= SEQUENCE {                                                 |
    mdmDCCompressionTypeUsed        OBJECT IDENTIFIER                     |
}                                                                         |

mdmDCCompressionTypeUsed OBJECT-TYPE                                      |
    SYNTAX      OBJECT IDENTIFIER                                         |
    MAX-ACCESS  read-only                                                 |
    STATUS      current                                                   |
    DESCRIPTION                                                           |
            "Indicates the data compression method used during the        |
            current or previous call.  This shall be one of the values    |
            for compression protocols registered in the capabilities      |
            table for this modem.  If no compression protocol is in use,  |
            this object shall have the value '{0 0}'."                    |
    ::= { mdmDCEntry 1 }                                                  |

-- The modem Signal Convertor Group                                       |

mdmSCTable OBJECT-TYPE                                                    |
    SYNTAX      SEQUENCE OF MdmSCEntry                                    |
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "The modem signal convertor table augments the modem ID       |





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            table."                                                       |
    ::= { mdmMIBObjects 10 }                                              |

mdmSCEntry OBJECT-TYPE                                                    |
    SYNTAX      MdmSCEntry                                                |
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
            "Entries in this table are created only by the agent. One
            entry exists for each modem managed by the agent."
    AUGMENTS    { mdmIDEntry }
    ::= { mdmSCTable 1 }                                                  |

MdmSCEntry ::= SEQUENCE {                                                 |
    mdmSCCurrentLineTransmitRate        Integer32,                        |
    mdmSCCurrentLineReceiveRate         Integer32,                        |
    mdmSCInitialLineTransmitRate        Integer32,                        |
    mdmSCInitialLineReceiveRate         Integer32,                        |
    mdmSCModulationSchemeUsed           OBJECT IDENTIFIER                 |
}

mdmSCCurrentLineTransmitRate OBJECT-TYPE                                  |
    SYNTAX      Integer32                                                 |
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The current link transmit rate of a connection, or the last  |
            link transmit rate of the last connection in bits per         |
            second."                                                      |
    REFERENCE   "V.58 transmissionSignallingRateActive"                   |
    ::= { mdmSCEntry 1 }                                                  |

mdmSCCurrentLineReceiveRate OBJECT-TYPE                                   |
    SYNTAX      Integer32                                                 |
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION                                                           |
            "The current link receive rate of a connection, or the last   |
            link receive rate of the last connection in bits per          |
            second."                                                      |
    REFERENCE   "V.58 transmissionSignallingRateActive"                   |
    ::= { mdmSCEntry 2 }                                                  |

mdmSCInitialLineTransmitRate OBJECT-TYPE                                  |
    SYNTAX      Integer32                                                 |





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    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION                                                           |
            "The initial link transmit rate of the current connection,    |
            or the initial link transmit rate of the last connection in   |
            bits per second."                                             |
    ::= { mdmSCEntry 3 }                                                  |

mdmSCInitialLineReceiveRate OBJECT-TYPE                                   |
    SYNTAX      Integer32                                                 |
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The initial link receive rate of the current connection, or  |
            the initial link receive rate of the last connection in bits  |
            per second."                                                  |
    ::= { mdmSCEntry 4 }                                                  |

mdmSCModulationSchemeUsed OBJECT-TYPE                                     |
    SYNTAX      OBJECT IDENTIFIER                                         |
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The modulation scheme of the current or previous call.       |
            This shall be one of the values for modulation protocols      |
            registered in the capabilities table for this modem."         |
    REFERENCE   "V.58 gstnModulationSchemeActive"                         |
    ::= { mdmSCEntry 5 }                                                  |

-- The Modem Statistics Table                                             |

mdmStatsTable OBJECT-TYPE                                                 |
    SYNTAX      SEQUENCE OF MdmStatsEntry                                 |
    MAX-ACCESS  not-accessible                                            |
    STATUS      current
    DESCRIPTION
            "The modem statistics Table augments the modem ID table."     |
    ::= { mdmMIBObjects 11 }                                              |

mdmStatsEntry OBJECT-TYPE                                                 |
    SYNTAX      MdmStatsEntry                                             |
    MAX-ACCESS  not-accessible                                            |
    STATUS      current
    DESCRIPTION
            "Entries in this table are created only by the agent. One     |





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            entry exists for each modem managed by the agent."            |
    AUGMENTS    { mdmIDEntry }                                            |
    ::= { mdmStatsTable 1 }                                               |

MdmStatsEntry ::= SEQUENCE {                                              +
    mdmStatsRingNoAnswers                   Counter32,                    +
    mdmStatsIncomingConnectionFailures      Counter32,                    +
    mdmStatsIncomingConnectionCompletions   Counter32,                    +
    mdmStatsUnsuccessefullDialAttempts      Counter32,                    +
    mdmStatsOutgoingConnectionFailures      Counter32,                    +
    mdmStatsOutgoingConnectionCompletions   Counter32,                    +
    mdmStatsRetrains                        Counter32,                    +
    mdmStats2400OrLessConnections           Counter32,                    +
    mdmStats2400To14400Connections          Counter32,                    +
    mdmStatsGreaterThan14400Connections     Counter32,                    +
    mdmStatsErrorControlledConnections      Counter32,                    +
    mdmStatsCompressedConnections           Counter32,                    +
    mdmStatsCompressionEfficiency           Integer32,                    +
    mdmStatsSentOctets                      Counter32,                    +
    mdmStatsReceivedOctets                  Counter32,                    +
    mdmStatsSentDataFrames                  Counter32,                    +
    mdmStatsReceivedDataFrames              Counter32,                    +
    mdmStatsResentFrames                    Counter32,                    +
    mdmStatsErrorFrames                     Counter32                     +
}                                                                         +

mdmStatsRingNoAnswers OBJECT-TYPE                                         |
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The number of events in which ringing was detected but the   |
            call was not answered.                                        |
    ::= { mdmStatsEntry 1 }                                               |

mdmStatsIncomingConnectionFailures OBJECT-TYPE                            |
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION                                                           |
            "The number of incoming connection requests that this modem   |
            answered in which it could not train with the other DCE."     |
    ::= { mdmStatsEntry 2 }                                               |

mdmStatsIncomingConnectionCompletions OBJECT-TYPE                         |





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    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The number of incoming connection requests that this modem   |
            answered and successfully trained with the other DCE."        |
    ::= { mdmStatsEntry 3 }                                               |

mdmStatsUnsuccessefullDialAttempts OBJECT-TYPE                            |
        SYNTAX          Counter32                                         |
        MAX-ACCESS  read-only                                             |
        STATUS          current                                           |
        DESCRIPTION                                                       |
                "The number of call attempts that failed because the modem|
        didn't go off hook, or there was no dialtone."                    |
        ::= { mdmStatsEntry 4 }                                           |

mdmStatsOutgoingConnectionFailures OBJECT-TYPE                            |
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The number of outgoing calls from this modem which           |
            sucessfully went off hook and dialed, in which it could not   |
            train with the other DCE."                                    |
    ::= { mdmStatsEntry 5 }                                               |

mdmStatsOutgoingConnectionCompletions OBJECT-TYPE                         +
    SYNTAX      Counter32                                                 +
    MAX-ACCESS  read-only                                                 +
    STATUS      current                                                   +
    DESCRIPTION                                                           +
            "The number of outgoing calls from this modem which resulted  +
            in successfully training with the other DCE."                 +
    ::= { mdmStatsEntry 6 }                                               +

mdmStatsRetrains OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The number of retrains experienced on connections on this
            line."
    ::= { mdmStatsEntry 7 }                                               |






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-- Utilization counters

mdmStats2400OrLessConnections OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The number of connections initially established at a
            modulation speed of 2400 bits per second or less."
    ::= { mdmStatsEntry 8 }                                               |


mdmStats2400To14400Connections OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The number of connections initially established at a
            modulation speed of greater than 2400 bits per second and
            less than 14400 bits per second."
    ::= { mdmStatsEntry 9 }                                               |

mdmStatsGreaterThan14400Connections OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The number of connections initially established at a
            modulation speed of greater than 14400 bits per second."
    ::= { mdmStatsEntry 10 }                                              |

mdmStatsErrorControlledConnections OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The number of established connections using an error
            control protocol."
    ::= { mdmStatsEntry 11 }                                              |

mdmStatsCompressedConnections OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION





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            "The number of established connections using a compression
            protocol."
    ::= { mdmStatsEntry 12 }                                              |

mdmStatsCompressionEfficiency OBJECT-TYPE                                 +
    SYNTAX      Integer32 (0..65535)                                      +
    MAX-ACCESS  read-only                                                 +
    STATUS      current                                                   +
    DESCRIPTION                                                           +
            "The number of bytes transferred into the compression         +
            encoder divided by the number of bytes transferred out of     +
            the encoder, multiplied by 100 for either the current or      +
            last call.  If a data compression protocol is not in use,     +
            this value shall be `100'."                                   +
    REFERENCE   "V.58 compressionEfficiency"                              +
    ::= { mdmStatsEntry 13 }                                              +

mdmStatsSentOctets OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The number of octets presented to the modem by the DTE."
    ::= { mdmStatsEntry 14 }                                              |

mdmStatsReceivedOctets OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The number of octets presented to the DTE by the modem."
    ::= { mdmStatsEntry 15 }                                              |

mdmStatsSentDataFrames OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The number of data frames sent on the line interface.  If    |
            there is no frame-oriented protocol in use on the line        |
            interface, this counter shall not increment."                 |
    ::= { mdmStatsEntry 16 }                                              |

mdmStatsReceivedDataFrames OBJECT-TYPE
    SYNTAX      Counter32





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    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The number of data frames received on the line interface.    |
            If there is no frame-oriented protocol in use on the line     |
            interface, this counter shall not increment."                 |
    ::= { mdmStatsEntry 17 }                                              |

mdmStatsResentFrames OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The number of times this modem retransmits frames on the     |
            line interface.  If there is no frame-oriented protocol in    |
            use on the line interface, this counter shall not             |
            increment."                                                   |
    ::= { mdmStatsEntry 18 }                                              |

mdmStatsErrorFrames OBJECT-TYPE
    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
            "The number of block errors received on the link.  If there   |
            is no frame-oriented protocol in use on the line interface,   |
            this counter shall not increment."                            |
    ::= { mdmStatsEntry 19 }                                              |


END



















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4.  Acknowledgements

This document was produced by the Modem Management Working group.

In addition, the authors gratefully acknowledge the comments of Tom       |
Holodnik and Mark S. Lewis.                                               |












































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Table of Contents


1 Introduction ....................................................    2
2 The SNMPv2 Network Management Framework .........................    3
2.1 Object Definitions ............................................    3
3 Definitions .....................................................    4
4 Acknowledgements ................................................   32










































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