ARRIS-CMTS-FFT-MIB
File:
ARRIS-CMTS-FFT-MIB.mib (14381 bytes)
Imported modules
Imported symbols
Defined Types
DcxFftUpstreamChannelEntry |
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SEQUENCE |
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dcxFftSize |
Unsigned32 |
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dcxFftSampleRate |
INTEGER |
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dcxFftCentreFrequency |
Integer32 |
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dcxFftWindowing |
INTEGER |
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dcxFftLogAveragingTimeConstant |
Unsigned32 |
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dcxFftOutputFormat |
INTEGER |
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dcxFftOperatingMode |
INTEGER |
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dcxFftIdleInterval |
Unsigned32 |
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dcxFftBurstSid |
Unsigned32 |
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dcxFftBurstIUC |
INTEGER |
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dcxFftLogicalChannel |
INTEGER |
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dcxFftTriggerCount |
Unsigned32 |
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dcxFftEnable |
TruthValue |
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dcxFftApplyConfig |
TruthValue |
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dcxFftInProgress |
TruthValue |
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dcxFftCurrentTriggers |
Unsigned32 |
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DcxFftPayloadBuffer |
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A buffer that contains upstream FFT payload data. |
TEXTUAL-CONVENTION |
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OCTET STRING |
Size(0..256) |
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DcxFftPayloadEntry |
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SEQUENCE |
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dcxFftPayloadIndex |
Unsigned32 |
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dcxFftPayloadData |
DcxFftPayloadBuffer |
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Defined Values
cmtsFftMIB |
1.3.6.1.4.1.4115.1.4.5.1 |
This MIB manages the FFT software on the Arris CMTS |
MODULE-IDENTITY |
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dcxFftUpstreamChannelTable |
1.3.6.1.4.1.4115.1.4.5.1.1.1 |
Arris CMTS FFT upstream channel configuration table. An entry in this table
exists for each ifEntry with an ifType of docsCableUpstreamInterface (129)
that supports FFT collection and reporting. |
Status: current |
Access: not-accessible |
OBJECT-TYPE |
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SEQUENCE OF |
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DcxFftUpstreamChannelEntry |
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dcxFftUpstreamChannelEntry |
1.3.6.1.4.1.4115.1.4.5.1.1.1.1 |
Arris FFT upstream channel entry. |
Status: current |
Access: not-accessible |
OBJECT-TYPE |
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DcxFftUpstreamChannelEntry |
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dcxFftSize |
1.3.6.1.4.1.4115.1.4.5.1.1.1.1.1 |
Number of samples to be collected for FFT. Valid
values are 256, 512, 1024, 2048, 4096. The FFT payload size
will be the number of samples multiplied by the number
of bytes per sample as determined by dcxFftOutputFormat.
The duration of the FFT sample will be the number of samples
divided by the sample rate as determined by dcxFftSampleRate. |
Status: current |
Access: read-write |
OBJECT-TYPE |
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Unsigned32 |
256 | 512 | 1024 | 2048 | 4096 |
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dcxFftSampleRate |
1.3.6.1.4.1.4115.1.4.5.1.1.1.1.2 |
FFT sample rate based on the input source to the FFT. The input to the FFT
can be the ADC output, the ADC output followed by a down-mixer and half-band
filter, the ADC output followed by a down-mixer and quarter-band filter, or
the received channel's Nyquist filter output. |
Status: current |
Access: read-write |
OBJECT-TYPE |
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INTEGER |
adcRate(1), halfAdcRate(2), quarterAdcRate(3), quadrupleSymbolRate(4), reserved5(5), reserved6(6), reserved7(7), reserved8(8) |
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dcxFftCentreFrequency |
1.3.6.1.4.1.4115.1.4.5.1.1.1.1.3 |
FFT centre frequency. This object is used only if dcxFftSampleRate is set
to halfAdcRate or quarterAdcRate to set the down-mixer frequency. |
Status: current |
Access: read-write |
OBJECT-TYPE |
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Integer32 |
-81920000..81920000 |
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dcxFftWindowing |
1.3.6.1.4.1.4115.1.4.5.1.1.1.1.4 |
Set the frequency-domain windowing filter. |
Status: current |
Access: read-write |
OBJECT-TYPE |
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INTEGER |
rectangular(1), hanning(2), hamming(3), blackman(4), blackmanHarris(5) |
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dcxFftLogAveragingTimeConstant |
1.3.6.1.4.1.4115.1.4.5.1.1.1.1.5 |
Time averaging constant exponent, M. Constant is
2^M. Setting this object to zero disables averaging. |
Status: current |
Access: read-write |
OBJECT-TYPE |
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Unsigned32 |
0..7 |
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dcxFftOperatingMode |
1.3.6.1.4.1.4115.1.4.5.1.1.1.1.7 |
Operating mode of FFT process. Determines whether
the FFT measurement takes place while no CMs are
transmitting (measuring noise floor), during a CM
burst, or by periodically sampling the spectrum
without regard to scheduling of the upstream. |
Status: current |
Access: read-write |
OBJECT-TYPE |
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INTEGER |
baseSpectrum(1), burstSpectrum(2), periodicSpectrum(3) |
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dcxFftIdleInterval |
1.3.6.1.4.1.4115.1.4.5.1.1.1.1.8 |
Interval in microseconds between consecutive FFT
triggers when dcxFftOperatingMode is baseSpectrum
or periodicSpectrum. This object is not used if
dcxFftOperatingMode is set to burstSpectrum or if
dcxFftTriggerCount is 1. |
Status: current |
Access: read-write |
OBJECT-TYPE |
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Unsigned32 |
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dcxFftBurstSid |
1.3.6.1.4.1.4115.1.4.5.1.1.1.1.9 |
SID on which to trigger the FFT process. This
object is used only if dcxFftOperatingMode is set
to burstSpectrum. |
Status: current |
Access: read-write |
OBJECT-TYPE |
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Unsigned32 |
0..16383 |
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dcxFftBurstIUC |
1.3.6.1.4.1.4115.1.4.5.1.1.1.1.10 |
IUC type on which to trigger the FFT process. This
object is used only if dcxFftOperatingMode is set
to burstSpectrum or periodicSpectrum. A value of 0
means trigger on any IUC type. |
Status: current |
Access: read-write |
OBJECT-TYPE |
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INTEGER |
0..15 |
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dcxFftLogicalChannel |
1.3.6.1.4.1.4115.1.4.5.1.1.1.1.11 |
Logical channel on which to trigger the FFT process.
This object is used only if dcxFftOperatingMode is
set to periodicSpectrum. A value of -1 means trigger
on any logical channel. |
Status: current |
Access: read-write |
OBJECT-TYPE |
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INTEGER |
-1..3 |
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dcxFftTriggerCount |
1.3.6.1.4.1.4115.1.4.5.1.1.1.1.12 |
Number of times to trigger FFT when dcxFftEnable and
dcxFftApplyConfig are set to true. Set this object to
zero to trigger FFT continuously. |
Status: current |
Access: read-write |
OBJECT-TYPE |
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Unsigned32 |
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dcxFftEnable |
1.3.6.1.4.1.4115.1.4.5.1.1.1.1.13 |
Set to true to enable FFT on this channel. Set to false to
disable. Setting will take effect when dcxFftApplyConfig is
set to true |
Status: current |
Access: read-write |
OBJECT-TYPE |
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TruthValue |
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dcxFftApplyConfig |
1.3.6.1.4.1.4115.1.4.5.1.1.1.1.14 |
Set to true to trigger an FFT process with configuration
determined by the other objects in this group. An SNMP GET
of this object will always return false |
Status: current |
Access: read-write |
OBJECT-TYPE |
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TruthValue |
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dcxFftInProgress |
1.3.6.1.4.1.4115.1.4.5.1.1.1.1.15 |
This object will return true if an FFT process is currently
in progress (having been started by a SET to dcxFftApplyConfig)
for this upstream channel. Returns false otherwise |
Status: current |
Access: read-only |
OBJECT-TYPE |
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TruthValue |
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dcxFftCurrentTriggers |
1.3.6.1.4.1.4115.1.4.5.1.1.1.1.16 |
Number of FFT triggers since the last FFT process was
started. |
Status: current |
Access: read-only |
OBJECT-TYPE |
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Unsigned32 |
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dcxFftPayloadEntry |
1.3.6.1.4.1.4115.1.4.5.1.1.2.1 |
Arris CMTS FFT upstream channel payload entry. Multiple entries in this
table exist for each ifEntry with an ifType of
docsCableUpstreamInterface (129) that supports the FFT collection and
currently has FFT data to report. |
Status: current |
Access: not-accessible |
OBJECT-TYPE |
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DcxFftPayloadEntry |
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dcxFftPayloadIndex |
1.3.6.1.4.1.4115.1.4.5.1.1.2.1.1 |
An identifier for the 256-byte buffer available
at the dcxFftPayloadData object. |
Status: current |
Access: not-accessible |
OBJECT-TYPE |
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Unsigned32 |
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dcxFftPayloadData |
1.3.6.1.4.1.4115.1.4.5.1.1.2.1.2 |
The FFT payload data in the buffer identified by
dcxFftPayloadIndex. |
Status: current |
Access: read-only |
OBJECT-TYPE |
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DcxFftPayloadBuffer |
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