Reference record for OID 1.3.6.1.4.1.429.4.32


parent
1.3.6.1.4.1.429.4 (common)
node code
32
node names
  • usrPN
  • usrAdslf
  • dot oid
    1.3.6.1.4.1.429.4.32
    type
    OBJECT IDENTIFIER
    asn1 oid
  • {iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) csg3Com(429) common(4) usrPN(32)}
  • {iso(1) identified-organization(3) dod(6) internet(1) private(4) enterprise(1) csg3Com(429) common(4) usrAdslf(32)}
  • ...skipped...
  • {iso(1) org(3) dod(6) internet(1) private(4) enterprise(1) usRobotics(429) common(4) usrPN(32)}
  • {iso(1) org(3) dod(6) internet(1) private(4) enterprise(1) usRobotics(429) common(4) usrAdslf(32)}
  • {iso(1) org(3) dod(6) internet(1) private(4) enterprises(1) csg3Com(429) common(4) usrPN(32)}
  • {iso(1) org(3) dod(6) internet(1) private(4) enterprises(1) csg3Com(429) common(4) usrAdslf(32)}
  • ...skipped...
  • {iso(1) iso-identified-organization(3) dod(6) internet(1) private(4) enterprises(1) usRobotics(429) common(4) usrPN(32)}
  • {iso(1) iso-identified-organization(3) dod(6) internet(1) private(4) enterprises(1) usRobotics(429) common(4) usrAdslf(32)}
  • iri oid
  • /iso/identified-organization/dod/internet/private/enterprise/csg3Com/common/usrPN
  • /iso/identified-organization/dod/internet/private/enterprise/csg3Com/common/usrAdslf
  • ...skipped...
  • /iso/org/dod/internet/private/enterprise/usRobotics/common/usrPN
  • /iso/org/dod/internet/private/enterprise/usRobotics/common/usrAdslf
  • /iso/org/dod/internet/private/enterprises/csg3Com/common/usrPN
  • /iso/org/dod/internet/private/enterprises/csg3Com/common/usrAdslf
  • ...skipped...
  • /iso/iso-identified-organization/dod/internet/private/enterprises/usRobotics/common/usrPN
  • /iso/iso-identified-organization/dod/internet/private/enterprises/usRobotics/common/usrAdslf
  • iri by oid_info
    /ISO/Identified-Organization/6/1/4/1/429/4/32

    Information by oid_info

    Vendor: UTStarcom Incorporated
    Module: USR-DEFINITIONS-MIB

    [Automatically extracted from oidview.com]

    Information by mibdepot

    usrPN OBJECT IDENTIFIER ::= { common 32 }

    Information by circitor

    usrPN OBJECT IDENTIFIER ::= { common 32 }

    First Registration Authority (recovered by parent 1.3.6.1.4.1.429)

    Bill Vroman

    Children (81)

    OIDNameSub childrenSub Nodes TotalDescription
    1.3.6.1.4.1.429.4.32.1 adslLineCoding 1 1 Specifies the ADSL coding type used on this line.
    Other types may be added in the future with higher values ala ifIANAtype.
    This …
    1.3.6.1.4.1.429.4.32.2 adslLineType 1 1 this describes which other tables go with this ifEntry.
    use EITHER three separate ifEntries (and adslLinEntries):
    (1) and tables …
    1.3.6.1.4.1.429.4.32.3 adslLineSpecific 1 1 OID instance in vendor-specific MIB. The Instance may be
    used to determine shelf/slot/port of the ATU-C interface
    in a DSLAM (am…
    1.3.6.1.4.1.429.4.32.4 adslLineStatus 1 1 Status indicates mandatory state of the line.
    This is a bit-map of possible conditions.
    These are from the perspective of the ATU…
    1.3.6.1.4.1.429.4.32.5 adslAturInvSerialNumber 1 1 Vendor specific Serial number of the ATU-C modem
    1.3.6.1.4.1.429.4.32.6 adslAturInvVendorID 1 1 The vendor ID assigned by T1E1.4 according to its Appendix D.
    1.3.6.1.4.1.429.4.32.7 adslAturCurrOutputPower 1 1 Current output power
    1.3.6.1.4.1.429.4.32.8 adslAturCurrTransmitRate 1 1 Current transmit rate in kbps, limited to multiples of 32kbps
    1.3.6.1.4.1.429.4.32.9 adslAturCurrCodeWordLength 1 1 Current Code Word Length,
    calculated from Transmit rate and noise margin
    1.3.6.1.4.1.429.4.32.10 adslAturCurrSnrMgn 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.11 adslAturCurrAtn 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.12 adslAturCurrReceiveGain 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.13 adslAturPerfValidIntervals 1 1 number of valid intervals in the adslAturPerfDataTable
    1.3.6.1.4.1.429.4.32.14 adslAturPerfLof 1 1 count of the number of Loss of Framing events since system reset.
    1.3.6.1.4.1.429.4.32.15 adslAturPerfLos 1 1 count of the number of Loss of Signal events since system reset.
    1.3.6.1.4.1.429.4.32.16 adslAturPerfLpr 1 1 count of the number of Loss of Power events since system reset.
    1.3.6.1.4.1.429.4.32.17 adslAturPerfCV 1 1 count of the number of Loss of Coding Violation events since system reset.
    1.3.6.1.4.1.429.4.32.18 adslAturPerfES 1 1 count of the number of Errored Seconds since system reset.
    1.3.6.1.4.1.429.4.32.19 adslAturPerfCurr1DayElapSecs 1 1 The total time interval over which all Curr1Day interval counters are measured.
    If 0, this interval is invalid.
    1.3.6.1.4.1.429.4.32.20 adslAturPerfCurr1DayMoniSecs 1 1 The total number of valid seconds in the Curr1Day interval counters.
    This may be less than adslAturPerfCurr1DayElapSecs only whe…
    1.3.6.1.4.1.429.4.32.21 adslAturPerfPrev1DayElapSecs 1 1 The total time interval over which all Prev1Day interval counters are measured.
    If 0, this interval is invalid.
    1.3.6.1.4.1.429.4.32.22 adslAturPerfPrev1DayMoniSecs 1 1 The total number of valid seconds in the Prev1Day interval counters.
    This may be less than adslAturPerfPrev1DayElapSecs only whe…
    1.3.6.1.4.1.429.4.32.23 adslAturPerfCurr1DayLofs 1 1 Count of the number of seconds when there was Loss of Framing
    during the mandatory day, as measured by adslAturPerfCurr1DayElapS…
    1.3.6.1.4.1.429.4.32.24 adslAturPerfPrev1DayLofs 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.25 adslAturPerfCurr1DayLoss 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.26 adslAturPerfPrev1DayLoss 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.27 adslAturPerfCurr1DayLprs 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.28 adslAturPerfPrev1DayLprs 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.29 adslAturPerfCurr1DayCVs 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.30 adslAturPerfPrev1DayCVs 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.31 adslAturPerfCurr1DayES 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.32 adslAturPerfPrev1DayES 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.33 adslAturPerfCurr15minLofs 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.34 adslAturPerfPrev15minLofs 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.35 adslAturPerfCurr15minLoss 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.36 adslAturPerfPrev15minLoss 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.37 adslAturPerfCurr15minLprs 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.38 adslAturPerfPrev15minLprs 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.39 adslAturPerfCurr15minES 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.40 adslAturPerfPrev15minES 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.41 adslAturThresh15MinLofs 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.42 adslAturThresh15MinLoss 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.43 adslAturThresh15MinLprs 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.44 adslAturThresh15MinCVs 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.45 adslAturThresh15MinES 1 1 to be supplied.
    1.3.6.1.4.1.429.4.32.46 adslAturInitFailureTrapEnable 1 1 values as above
    1.3.6.1.4.1.429.4.32.47 adslAturChanCurrTxRate 1 1 derived from adslAturConfMinTxRate + * (adslAturConfRateChanRatio / 100)
    as long as it is < adslAturChanConfMaxTxRate
    1.3.6.1.4.1.429.4.32.48 adslAturChanPrevTxRate 1 1 The rate that was set at the previous adslAturRateChangeTrap event.
    It is also set at initialization to prevent a trap being sen…
    1.3.6.1.4.1.429.4.32.49 adslAturChanReceivedBlocks 1 1 count of all encoded blocks received on this channel.
    1.3.6.1.4.1.429.4.32.50 adslAturChanTransmittedBlocks 1 1 count of all encoded blocks transmitted on this channel.
    1.3.6.1.4.1.429.4.32.51 adslAturChanCorrectedBlocks 1 1 count of all blocks received with errors that were corrected.
    These blocks are passed on as good data.
    1.3.6.1.4.1.429.4.32.52 adslAturChanUncorrectableBlocks 1 1 count of all blocks received with uncorrectable errors.
    These blocks are dropped from the received data stream.
    1.3.6.1.4.1.429.4.32.53 usrAdslCFMStatusFlag 1 1 This variable controls saving and loading of configuration
    information for the ADSL WAN Driver. The value can be set
    to either sa…
    1.3.6.1.4.1.429.4.32.54 usrAdslCfgFileName 1 1 The name of a ConfigFile to read/write the ADSL parameters.
    If the value of this object is an empty string, then the
    ADSL Driver …
    1.3.6.1.4.1.429.4.32.55 usrAdslResetStatus 1 1 The Reset Status of the ADSL Starlet chipset
    1.3.6.1.4.1.429.4.32.56 usrAdslActualBaudDataRateDwn 1 1 Actual Downstream Baud Rate
    1.3.6.1.4.1.429.4.32.57 usrAdslFwRel 1 1 Firmware release number of the GTI supplied transceiver
    software module.
    1.3.6.1.4.1.429.4.32.58 usrAdslAdiVerson 1 1 Value is a number that corresponds to the version number of
    the ADI chipset.
    1.3.6.1.4.1.429.4.32.59 usrAdslLocalReqDwnConstStatus 1 1 Value corresponds to the local downstream constellation
    requested.
    1.3.6.1.4.1.429.4.32.60 usrAdslActualUpConstStatus 1 1 Value corresponds to the actual upstream constellation
    that was used, which may differ from the value requested.
    1.3.6.1.4.1.429.4.32.62 usrAdslRemoteReqUpConstStatus 1 1 Value corresponds to the remote requested downstream constellation
    requested.
    1.3.6.1.4.1.429.4.32.63 usrAdslStartletVerson 1 1 Value is a number that corresponds to the version number of
    the STARLET VLSI in the transceiver.
    1.3.6.1.4.1.429.4.32.64 usrAdslActualDwnConstStatus 1 1 Value corresponds to the actual downstream constellation
    that was used, which may differ from the value requested.
    1.3.6.1.4.1.429.4.32.65 usrAdslLocalReqUpConstStatus 1 1 Value corresponds to the local upstream constellation
    requested.
    1.3.6.1.4.1.429.4.32.66 usrAdslRemoteReqDwnConstStatus 1 1 Value corresponds to the remote downstream constellation
    requested.
    1.3.6.1.4.1.429.4.32.67 usrAdslLocalReqBaudDataRateDwn 1 1 Local Downstream Baud Rate requested by the User.
    1.3.6.1.4.1.429.4.32.68 usrAdslFixBitStatus 1 1 Fixed Bit Rate feature status.
    1.3.6.1.4.1.429.4.32.69 usrAdslLocalReqXmitPower 1 1 Transmit power requested at the local ADSL transceiver represented i n dB.
    1.3.6.1.4.1.429.4.32.70 usrAdslRemoteProtocolType 1 1 Protocol type in use by the remote RTU.
    1.3.6.1.4.1.429.4.32.71 usrAdslMeanSqError 1 1 Received signal to noise ratio.
    1.3.6.1.4.1.429.4.32.72 usrAdslLocalActualXmitPower 1 1 Transmit power of the local ADSL transceiver represented in dB.
    1.3.6.1.4.1.429.4.32.73 usrAdslOverFlowCounter 1 1 Running counter for when usrAdslBytesErrorCorrected or
    usrAdslBytesNotErrorCorrected overflows. This Number is reset
    to zero each…
    1.3.6.1.4.1.429.4.32.74 usrAdslLastFailedStatus 1 1 Defines the last detailed state reached in
    usrAdslStartupProgress before startup failed.
    1.3.6.1.4.1.429.4.32.75 usrAdslBytesNotErrCorrected 1 1 Number of bytes not corrected by Reed-Solomon error correction
    algorithm in the STARLET.This Number is reset to zero each
    time th…
    1.3.6.1.4.1.429.4.32.76 usrAdslOpState 1 1 Defines the high level operating state of the transceiver.
    Used by the customer to determine whether the transceiver
    is in idle m…
    1.3.6.1.4.1.429.4.32.77 usrAdslBytesErrCorrected 1 1 Number of bytes corrected by Reed-Solomon error correction
    algorithm in the STARLET.This Number is reset to zero each
    time the Tr…
    1.3.6.1.4.1.429.4.32.78 usrAdslLocalProtocolType 1 1 Protocol type in use by the local RTU.
    1.3.6.1.4.1.429.4.32.79 usrAdslLastFailedErrorValue 1 1 Defines the last detailed value reached in
    usrAdslStartupProgress before startup failed.
    1.3.6.1.4.1.429.4.32.81 usrAdslLocalReceiverGain 1 1 Total local receiver gain measured in dB.
    1.3.6.1.4.1.429.4.32.82 usrAdslSwitchType 1 1 usrAdslSwitchtype
    1.3.6.1.4.1.429.4.32.90 usrAdslRemoteReqBaudDataRateDwn 1 1 Remote Downstream Baud Rate requested by the User.

    Brothers (79)

    OIDNameSub childrenSub Nodes TotalDescription
    1.3.6.1.4.1.429.4.1 usrConfig 33 140 The commWorks enterprise defined MIB objects
    for Configuration Management
    1.3.6.1.4.1.429.4.2 usrUserMan 2 700 The commWorks enterprise defined MIB objects for UserMan.
    1.3.6.1.4.1.429.4.3 roboExec 9 268 The commWorks enterprise defined MIB objects
    for the RoboExec
    1.3.6.1.4.1.429.4.4 usrIpx 21 109 The commWorks enterprise defined MIB objects for IPX
    1.3.6.1.4.1.429.4.5 usrSnmp 6 35 The commWorks enterprise defined MIB objects
    for the SNMP process.
    1.3.6.1.4.1.429.4.6 atcfgFwd 19 52 None
    1.3.6.1.4.1.429.4.7 atprivateFwd 1 6 None
    1.3.6.1.4.1.429.4.9 usrEventHandler 4 14 The commWorks enterprise defined MIB objects
    for the Event Handling Process.
    1.3.6.1.4.1.429.4.10 usrCip 88 417 The commWorks enterprise defined MIB objects
    for CIP
    1.3.6.1.4.1.429.4.11 usrPPP 3 155 The commWorks enterprise defined MIB objects
    for PPP multilink.
    1.3.6.1.4.1.429.4.12 usrIp 46 161 The enterprise specific defined objects for IP
    1.3.6.1.4.1.429.4.13 usrIpCfg 1 25 The commWorks enterprise defined MIB objects IP
    Configuration.
    1.3.6.1.4.1.429.4.14 usrBridge 4 98 None
    1.3.6.1.4.1.429.4.15 usrFR 5 49 The commWorks enterprise defined MIB objects
    for Frame Relay.
    1.3.6.1.4.1.429.4.16 usrFilter 6 46 The commWorks enterprise defined MIB objects
    for Filtering.
    1.3.6.1.4.1.429.4.17 usrDns 26 83 The commWorks enterprise defined MIB objects
    for the Domain Name Service functionality.
    1.3.6.1.4.1.429.4.18 usrTermProt 13 32 The commWorks enterprise defined MIB objects for Terminal
    Protocols Process.
    1.3.6.1.4.1.429.4.19 usrIpRouting 27 115 The commWorks enterprise defined MIB objects
    for IP routing process.
    1.3.6.1.4.1.429.4.20 usrIpxCfg 1 29 The commWorks enterprise defined MIB objects
    for the IPX Configuration process.
    1.3.6.1.4.1.429.4.21 usrIsdnMib 2 71 None
    1.3.6.1.4.1.429.4.22 usrCli 9 18 The commWorks enterprise defined MIB objects
    for the CLI
    1.3.6.1.4.1.429.4.23 usrD56k 3 6 None
    1.3.6.1.4.1.429.4.24 usrTftp 4 19 The commWorks enterprise defined MIB objects for TFTP
    1.3.6.1.4.1.429.4.25 usrDialout 6 19 The commWorks enterprise defined MIB objects
    for Dialout.
    1.3.6.1.4.1.429.4.26 usrAdsl 23 46 The commWorks enterprise defined MIB objects for ADSL
    1.3.6.1.4.1.429.4.27 usrDS1, usrLLLed 0 0 None
    1.3.6.1.4.1.429.4.28 usrDS0, usrDhcp 21 73 None
    1.3.6.1.4.1.429.4.29 usrStack, usrVatmMib 1 45 None
    1.3.6.1.4.1.429.4.30 usrModem, usrLldaMib 0 0 None
    1.3.6.1.4.1.429.4.31 usrTopology, usrNat 5 52 None
    1.3.6.1.4.1.429.4.33 usrPPTP, usrADI 12 24 None
    1.3.6.1.4.1.429.4.34 usrNTPMib, usrFtp 3 108 This MIB Module defines the CommWorks private interface
    to the Simple Network Time Protocol client process.
    The process can be co…
    1.3.6.1.4.1.429.4.35 usrSLIP, usrHtml 1 9 The commWorks enterprise defined MIB objects for SLIP
    1.3.6.1.4.1.429.4.36 usrPing, usrHdsl 5 24 This MIB Module defines the Commworks enterprise specific
    interface to the Ping for Services process.
    1.3.6.1.4.1.429.4.37 usrRemotePing, usrFR2 2 42 None
    1.3.6.1.4.1.429.4.38 usrGWCBSP, usrAdslc6x 23 54 The commWorks enterprise defined MIB objects
    for the GWC BSP specific platform
    1.3.6.1.4.1.429.4.39 usrRM, usrHdlc 0 0 None
    1.3.6.1.4.1.429.4.40 usrTraceroute, usrHub 3 30 The commWorks enterprise defined MIB objects for TraceRoute
    1.3.6.1.4.1.429.4.41 usrChassis, usrAlc 14 35 The commWorks enterprise defined MIB objects
    for the card chassis.
    1.3.6.1.4.1.429.4.42 usrCable, usrDhcpClient 0 0 None
    1.3.6.1.4.1.429.4.43 usrDsx3, usrIAA 18 43 None
    1.3.6.1.4.1.429.4.44 usrTraps, usrAccess 0 0 None
    1.3.6.1.4.1.429.4.45 usrTcp 7 14 The commWorks enterprise defined MIB objects for
    the TCP process.
    1.3.6.1.4.1.429.4.46 usrIpoa 3 58 The commWorks enterprise defined MIB objects for
    IP over ATM with ARP.
    1.3.6.1.4.1.429.4.47 usrAtm1483Pvc 4 17 The commWorks enterprise defined MIB objects for
    the Netserver ATM.
    1.3.6.1.4.1.429.4.48 hdr2, usrMdmTemplate 4 71 None
    1.3.6.1.4.1.429.4.49 usrAtmArp 4 22 None
    1.3.6.1.4.1.429.4.50 usrAtmCrossConnect 1 14 The commWorks enterprise defined MIB objects
    for VC Cross Connect.
    1.3.6.1.4.1.429.4.51 usrAtm1577Pvc 1 10 None
    1.3.6.1.4.1.429.4.52 usrAtmCfg 1 7 None
    1.3.6.1.4.1.429.4.53 usrIgmp 6 53 The commWorks enterprise defined MIB objects
    for IGMP
    1.3.6.1.4.1.429.4.54 usrMPIP 1 51 The commWorks enterprise defined MIB objects
    for MPIP.
    1.3.6.1.4.1.429.4.55 usrL2TP 7 45 The commWorks enterprise defined MIB objects for L2TP
    1.3.6.1.4.1.429.4.56 usrPptp 6 106 The commWorks enterprise defined MIB objects
    for point-to-point tunneling.
    1.3.6.1.4.1.429.4.57 usrTap 1 15 The commWorks enterprise defined MIB objects for
    the Port Tapping Service functionality.
    1.3.6.1.4.1.429.4.58 usrGwcwan 6 52 The commWorks enterprise defined MIB objects
    for the Network Element.
    1.3.6.1.4.1.429.4.59 usrDhcp 42 151 The commWorks enterprise defined MIB objects
    for the Dynamic Host Configuration Protocol.
    1.3.6.1.4.1.429.4.60 usrNat 0 0 None
    1.3.6.1.4.1.429.4.61 usrFcp 0 0 None
    1.3.6.1.4.1.429.4.62 usrNos 0 0 None
    1.3.6.1.4.1.429.4.63 usrOspf 10 48 The MIB module to describe the enterprise specific
    objects for the OSPF Protocol
    1.3.6.1.4.1.429.4.64 usrFRExt 8 126 The CommWorks Frame Relay DTE MIB Extensions
    1.3.6.1.4.1.429.4.68 usrTundisp 1 16 The commWorks enterprise defined MIB objects for
    the tunnel dispatcher.
    1.3.6.1.4.1.429.4.69 usrPm 5 24 The commWorks enterprise defined MIB objects
    for the Policy Manager process.
    1.3.6.1.4.1.429.4.70 usrVTP 4 72 The commWorks enterprise defined MIB objects for VTP
    1.3.6.1.4.1.429.4.72 usrGre 2 22 None
    1.3.6.1.4.1.429.4.73 usrInverseARP 3 15 The proprietary object definitions for Inverse ARP.
    1.3.6.1.4.1.429.4.74 usrRsh 6 15 The commWorks enterprise defined MIB objects for rshd
    1.3.6.1.4.1.429.4.76 usrBetaSite 2 26 The commWorks enterprise defined MIB objects
    Beta Site specific objects.
    1.3.6.1.4.1.429.4.77 usrSS7 41 97 The commWorks enterprise defined MIB objects for SS7.
    1.3.6.1.4.1.429.4.78 usripNat 3 23 The commWorks enterprise defined MIB objects
    for Network Address Translation.
    1.3.6.1.4.1.429.4.79 usrPPPoE 18 43 The commWorks enterprise defined MIB objects
    for PPP over Ethernet.
    1.3.6.1.4.1.429.4.80 usrIpSec 1 7 The commWorks enterprise defined MIB objects for IP security
    1.3.6.1.4.1.429.4.82 usrMIP 10 236 Added usrMipHaSendICMPforPMTUDiscovery
    1.3.6.1.4.1.429.4.83 usrFA 15 329 The commWorks enterprise defined MIB objects
    for the Wireless Foreign Agent.
    1.3.6.1.4.1.429.4.84 usrVHA 11 356 The commWorks enterprise defined MIB objects for VHA
    1.3.6.1.4.1.429.4.85 usrFCNI 9 202 The commWorks enterprise defined MIB objects
    for the wireless FACN Interface objects
    1.3.6.1.4.1.429.4.91 usrHACN 3 112 The commWorks enterprise defined MIB objects
    for HACN functionality.
    1.3.6.1.4.1.429.4.92 usrCalea 4 42 The commWorks enterprise defined MIB objects
    for CALEA