RFCs in HTML Format


RFC 1696


          Modem Management Information Base (MIB) using SMIv2


Table of Contents

   1 Introduction .................................................    1
   2 The SNMPv2 Network Management Framework ......................    2
   2.1 Object Definitions .........................................    2
   3 Definitions ..................................................    2
   4 Acknowledgements .............................................   30
   5. Security Considerations .....................................   30
   6. Authors' Addresses ..........................................   31

1.  Introduction

   This memo defines a 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.











Barnes, Brown, Royston & Waldbusser                             [Page 1]

RFC 1696 Modem MIB August 1994 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 STD 17, 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. 3. Definitions Modem-MIB DEFINITIONS ::= BEGIN IMPORTS MODULE-IDENTITY, OBJECT-TYPE, OBJECT-IDENTITY, Counter32, Integer32 FROM SNMPv2-SMI DisplayString FROM SNMPv2-TC MODULE-COMPLIANCE, OBJECT-GROUP FROM SNMPv2-CONF mib-2 FROM RFC1213-MIB; mdmMIB MODULE-IDENTITY LAST-UPDATED "9406120000Z" ORGANIZATION "IETF Modem Management Working Group" Barnes, Brown, Royston & Waldbusser [Page 2]
RFC 1696 Modem MIB August 1994 CONTACT-INFO " Steven Waldbusser Postal: Carnegie Mellon University 5000 Forbes Ave Pittsburgh, PA, 15213 US Tel: +1 412 268 6628 Fax: +1 412 268 4987 E-mail: waldbusser@cmu.edu" DESCRIPTION "The MIB module for management of dial-up modems." ::= { mdmMIB 1 } mdmMib OBJECT IDENTIFIER ::= { mib-2 38 } mdmMIBObjects OBJECT IDENTIFIER ::= { mdmMIB 1 } -- conformance information mdmConformance OBJECT IDENTIFIER ::= { mdmMIB 2 } mdmCompliances OBJECT IDENTIFIER ::= { mdmConformance 1 } mdmGroups OBJECT IDENTIFIER ::= { mdmConformance 2 } -- 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, mdmLineState, 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 Barnes, Brown, Royston & Waldbusser [Page 3]
RFC 1696 Modem MIB August 1994 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 { mdmCCRingsBeforeAnswer, mdmCCCallSetUpFailTimer, mdmCCResultCodeEnable, mdmCCEscapeAction, mdmCCCallDuration, mdmCCConnectionFailReason, 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 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 { mdmDCCompressionTypeUsed } 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 { mdmSCCurrentLineReceiveRate, mdmSCCurrentLineTransmitRate, mdmSCInitialLineReceiveRate, mdmSCInitialLineTransmitRate, 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 Barnes, Brown, Royston & Waldbusser [Page 4]
RFC 1696 Modem MIB August 1994 OBJECTS { mdmStatsRingNoAnswers, mdmStatsIncomingConnectionFailures, mdmStatsIncomingConnectionCompletions, mdmStatsFailedDialAttempts, mdmStatsOutgoingConnectionFailures, mdmStatsOutgoingConnectionCompletions, mdmStatsRetrains, mdmStats2400OrLessConnections, mdmStats2400To14400Connections, mdmStatsGreaterThan14400Connections, mdmStatsErrorControlledConnections, mdmStatsCompressedConnections, mdmStatsCompressionEfficiency, 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 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 Barnes, Brown, Royston & Waldbusser [Page 5]
RFC 1696 Modem MIB August 1994 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 (1..65535) 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." ::= { 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 } Barnes, Brown, Royston & Waldbusser [Page 6]
RFC 1696 Modem MIB August 1994 -- 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 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..255) 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 upon 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), onHook(2), offHook(3), -- and not connected connected(4), busiedOut(5), reset(6) } Barnes, Brown, Royston & Waldbusser [Page 7]
RFC 1696 Modem MIB August 1994 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 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 the protocol(s) 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 Barnes, Brown, Royston & Waldbusser [Page 8]
RFC 1696 Modem MIB August 1994 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 "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 } 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 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 Barnes, Brown, Royston & Waldbusser [Page 9]
RFC 1696 Modem MIB August 1994 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)'. In other words, if there are one or more mutually-exclusive capabilities (e.g. V.32 and V.32bis) that are set to `preferred', the agent must choose one in an implementation-specific manner. Otherwise, if there are one or more mutually-exclusive capabilities that are set to `optional', the agent must choose one in an implementation- specific manner." ::= { mdmLineCapabilitiesEntry 4 } mdmLineCapabilities OBJECT IDENTIFIER ::= { mdmMIBObjects 5 } mdmLineCapabilitiesV21 OBJECT-IDENTITY STATUS current DESCRIPTION "ITU V.21" ::= { mdmLineCapabilities 1 } mdmLineCapabilitiesV22 OBJECT-IDENTITY STATUS current DESCRIPTION "ITU V.22" ::= { mdmLineCapabilities 2 } mdmLineCapabilitiesV22bis OBJECT-IDENTITY STATUS current DESCRIPTION "ITU V.22bis" ::= { mdmLineCapabilities 3 } mdmLineCapabilitiesV23CC OBJECT-IDENTITY STATUS current DESCRIPTION "ITU V.23CC" ::= { mdmLineCapabilities 4 } mdmLineCapabilitiesV23SC OBJECT-IDENTITY STATUS current DESCRIPTION "ITU V.23SC" Barnes, Brown, Royston & Waldbusser [Page 10]
RFC 1696 Modem MIB August 1994 ::= { mdmLineCapabilities 5 } mdmLineCapabilitiesV25bis OBJECT-IDENTITY STATUS current DESCRIPTION "ITU V.25bis" ::= { mdmLineCapabilities 6 } mdmLineCapabilitiesV26bis OBJECT-IDENTITY STATUS current DESCRIPTION "ITU V.26bis" ::= { mdmLineCapabilities 7 } mdmLineCapabilitiesV26ter OBJECT-IDENTITY STATUS current DESCRIPTION "ITU V.26ter" ::= { mdmLineCapabilities 8 } mdmLineCapabilitiesV27ter OBJECT-IDENTITY STATUS current DESCRIPTION "ITU V.27ter" ::= { mdmLineCapabilities 9 } mdmLineCapabilitiesV32 OBJECT-IDENTITY STATUS current DESCRIPTION "ITU V.32" ::= { mdmLineCapabilities 10 } mdmLineCapabilitiesV32bis OBJECT-IDENTITY STATUS current DESCRIPTION "ITU V.32bis" ::= { mdmLineCapabilities 11 } mdmLineCapabilitiesV32terbo OBJECT-IDENTITY STATUS current DESCRIPTION "ITU V.32terbo" ::= { mdmLineCapabilities 12 } mdmLineCapabilitiesVFC OBJECT-IDENTITY STATUS current DESCRIPTION "ITU V.FC" Barnes, Brown, Royston & Waldbusser [Page 11]
RFC 1696 Modem MIB August 1994 ::= { mdmLineCapabilities 13 } mdmLineCapabilitiesV34 OBJECT-IDENTITY STATUS current DESCRIPTION "ITU V.34" ::= { mdmLineCapabilities 14 } mdmLineCapabilitiesV42 OBJECT-IDENTITY STATUS current DESCRIPTION "ITU V.42" ::= { mdmLineCapabilities 15 } mdmLineCapabilitiesV42bis OBJECT-IDENTITY STATUS current DESCRIPTION "ITU V.42bis" ::= { mdmLineCapabilities 16 } mdmLineCapabilitiesMNP1 OBJECT-IDENTITY STATUS current DESCRIPTION "MNP1" ::= { mdmLineCapabilities 17 } mdmLineCapabilitiesMNP2 OBJECT-IDENTITY STATUS current DESCRIPTION "MNP2" ::= { mdmLineCapabilities 18 } mdmLineCapabilitiesMNP3 OBJECT-IDENTITY STATUS current DESCRIPTION "MNP3" ::= { mdmLineCapabilities 19 } mdmLineCapabilitiesMNP4 OBJECT-IDENTITY STATUS current DESCRIPTION "MNP4" ::= { mdmLineCapabilities 20 } mdmLineCapabilitiesMNP5 OBJECT-IDENTITY STATUS current DESCRIPTION "MNP5" Barnes, Brown, Royston & Waldbusser [Page 12]
RFC 1696 Modem MIB August 1994 ::= { mdmLineCapabilities 21 } mdmLineCapabilitiesMNP6 OBJECT-IDENTITY STATUS current DESCRIPTION "MNP6" ::= { mdmLineCapabilities 22 } mdmLineCapabilitiesMNP7 OBJECT-IDENTITY STATUS current DESCRIPTION "MNP7" ::= { mdmLineCapabilities 23 } mdmLineCapabilitiesMNP8 OBJECT-IDENTITY STATUS current DESCRIPTION "MNP8" ::= { mdmLineCapabilities 24 } mdmLineCapabilitiesMNP9 OBJECT-IDENTITY STATUS current DESCRIPTION "MNP9" ::= { mdmLineCapabilities 25 } mdmLineCapabilitiesMNP10 OBJECT-IDENTITY STATUS current DESCRIPTION "MNP10" ::= { mdmLineCapabilities 26 } mdmLineCapabilitiesV29 OBJECT-IDENTITY STATUS current DESCRIPTION "ITU V.29" ::= { mdmLineCapabilities 27 } mdmLineCapabilitiesV33 OBJECT-IDENTITY STATUS current DESCRIPTION "ITU V.33" ::= { mdmLineCapabilities 28 } mdmLineCapabilitiesBell208 OBJECT-IDENTITY STATUS current DESCRIPTION "Bell 208" Barnes, Brown, Royston & Waldbusser [Page 13]
RFC 1696 Modem MIB August 1994 ::= { mdmLineCapabilities 29 } -- 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 6 } 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 } ::= { 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 Barnes, Brown, Royston & Waldbusser [Page 14]
RFC 1696 Modem MIB August 1994 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) } 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 Barnes, Brown, Royston & Waldbusser [Page 15]
RFC 1696 Modem MIB August 1994 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 } 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 and is intended for administrative control over idle connections." REFERENCE "V.58 inactivityTimerSelect" DEFVAL { 0 } ::= { mdmDTEInterfaceEntry 5 } -- The Call Control Table Barnes, Brown, Royston & Waldbusser [Page 16]
RFC 1696 Modem MIB August 1994 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 7 } mdmCallControlEntry OBJECT-TYPE SYNTAX MdmCallControlEntry 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 } ::= { mdmCallControlTable 1 } MdmCallControlEntry ::= SEQUENCE { mdmCCRingsBeforeAnswer Integer32, mdmCCCallSetUpFailTimer Integer32, mdmCCResultCodeEnable INTEGER, mdmCCEscapeAction INTEGER, mdmCCCallDuration Integer32, mdmCCConnectionFailReason INTEGER } mdmCCRingsBeforeAnswer OBJECT-TYPE SYNTAX Integer32 MAX-ACCESS read-write STATUS current DESCRIPTION "Determines which ring the modem will wait to answer the phone on. 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 Barnes, Brown, Royston & Waldbusser [Page 17]
RFC 1696 Modem MIB August 1994 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 } 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 Barnes, Brown, Royston & Waldbusser [Page 18]
RFC 1696 Modem MIB August 1994 DESCRIPTION "Present or last completed connection time in seconds. If there have been no previous connections, this value should be -1." ::= { mdmCallControlEntry 5 } mdmCCConnectionFailReason OBJECT-TYPE SYNTAX INTEGER { -- General unknown(1), other(2), managementCommand(3), inactivityTimeout(4), mnpIncompatibility(5), protocolError(6), -- DCE powerLoss(10), equipmentFailure(11), -- DTE Interface dtrDrop(20), -- Line Interface noDialTone(30), lineBusy(31), noAnswer(32), voiceDetected(33), -- Signal Converter carrierLost(40), trainingFailed(41), faxDetected(42) } MAX-ACCESS read-only STATUS current DESCRIPTION "Indicates the reason that the last connection or attempt failed. The meaning of each reason code is explained below. unknown: This code means the failure reason is unknown or there has been no previous call. other: This code used when no other code is applicable. Additional vendor information may be available elsewhere. managementCommand: Barnes, Brown, Royston & Waldbusser [Page 19]
RFC 1696 Modem MIB August 1994 A management command terminated the call. These commands include escaping to command mode, initiating dialing, restoring lines, and disconnecting. inactivityTimeout: The call was terminated because it was inactive for at the minimum duration specified. mnpIncompatibility: The modems are unable to resolve MNP protocol differences. protocolError: An error occured in one of protocol in use. Further information is required to determine in which protocol the error occurred, and the exact nature of the error. powerLoss: The modem lost power and disconnected the call. equipmentFailure: The modem equipment failed. dtrDrop: DTR has been turned off while the modem is to disconnect on DTR drop. (Ref: V.58 cct108TurnedOff) noDialTone: If the modem is to monitor for call progress tones, but the modem has failed to detect dial tone while attempting to dial a number. lineBusy: Busy signal is detected while busy signal detection is enabled, or while the 'W' or '@' dial modifier is used. (Ref: V.58 engagedTone) noAnswer: The call was not answered. voiceDetected: A voice was detected on the call. carrierLost: Indicates that the modem has disconnected due to detection of loss of carrier. In TIA-602, the S10 register determines the time that loss of carrier Barnes, Brown, Royston & Waldbusser [Page 20]
RFC 1696 Modem MIB August 1994 must be detected before the modem disconnects. trainingFailed: Indicates that the modems did not successfully train and reach data mode on the previous connection. faxDetected: A fax was detected on the call." 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 8 } 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 SYNTAX DisplayString (SIZE(0..64)) MAX-ACCESS read-write STATUS current Barnes, Brown, Royston & Waldbusser [Page 21]
RFC 1696 Modem MIB August 1994 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 9 } 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 } -- The modem Data Compression Group mdmDCTable OBJECT-TYPE SYNTAX SEQUENCE OF MdmDCEntry MAX-ACCESS not-accessible STATUS current Barnes, Brown, Royston & Waldbusser [Page 22]
RFC 1696 Modem MIB August 1994 DESCRIPTION "The modem data compression table augments the modem ID table." ::= { mdmMIBObjects 10 } 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 table." ::= { mdmMIBObjects 11 } mdmSCEntry OBJECT-TYPE SYNTAX MdmSCEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "Entries in this table are created only by the agent. One Barnes, Brown, Royston & Waldbusser [Page 23]
RFC 1696 Modem MIB August 1994 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 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 Barnes, Brown, Royston & Waldbusser [Page 24]
RFC 1696 Modem MIB August 1994 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 12 } mdmStatsEntry OBJECT-TYPE SYNTAX MdmStatsEntry 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 } ::= { mdmStatsTable 1 } MdmStatsEntry ::= SEQUENCE { mdmStatsRingNoAnswers Counter32, mdmStatsIncomingConnectionFailures Counter32, mdmStatsIncomingConnectionCompletions Counter32, mdmStatsFailedDialAttempts Counter32, mdmStatsOutgoingConnectionFailures Counter32, mdmStatsOutgoingConnectionCompletions Counter32, mdmStatsRetrains Counter32, mdmStats2400OrLessConnections Counter32, mdmStats2400To14400Connections Counter32, mdmStatsGreaterThan14400Connections Counter32, Barnes, Brown, Royston & Waldbusser [Page 25]
RFC 1696 Modem MIB August 1994 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 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 } mdmStatsFailedDialAttempts 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 Barnes, Brown, Royston & Waldbusser [Page 26]
RFC 1696 Modem MIB August 1994 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 } -- 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." Barnes, Brown, Royston & Waldbusser [Page 27]
RFC 1696 Modem MIB August 1994 ::= { 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 "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." Barnes, Brown, Royston & Waldbusser [Page 28]
RFC 1696 Modem MIB August 1994 ::= { 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 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, Barnes, Brown, Royston & Waldbusser [Page 29]
RFC 1696 Modem MIB August 1994 this counter shall not increment." ::= { mdmStatsEntry 19 } -- 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, mdmSignalConvertorGroup, mdmStatisticsGroup } GROUP mdmErrorControlGroup DESCRIPTION "This group is mandatory only for those modems that implement an error correction protocol." GROUP mdmDataCompressionGroup DESCRIPTION "This group is mandatory only for those modems that implement a data compression protocol." ::= { mdmCompliances 1 } END 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. 5. Security Considerations Security issues are not discussed in this memo. Barnes, Brown, Royston & Waldbusser [Page 30]
RFC 1696 Modem MIB August 1994 6. Authors' Addresses Jim Barnes Xylogics, Inc. 53 Third Avenue Burlington, MA 01803 USA Phone: 617-272-8140 Fax: 617-272-2618 EMail: barnes@xylogics.com



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