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ARRIS-CMTS-FFT-MIB DEFINITIONS ::= BEGIN
IMPORTS
enterprises, MODULE-IDENTITY, OBJECT-TYPE, Unsigned32, Integer32
FROM SNMPv2-SMI
TEXTUAL-CONVENTION, TruthValue
FROM SNMPv2-TC
OBJECT-GROUP, MODULE-COMPLIANCE
FROM SNMPv2-CONF
ifIndex
FROM IF-MIB
cmtsCommon
FROM ARRIS-MIB;
cmtsFftMIB MODULE-IDENTITY
LAST-UPDATED "200402270000Z" -- 27th February 2004
ORGANIZATION "Arris International"
CONTACT-INFO
" Network Management
Postal: Arris International.
4400 Cork Airport Business Park
Cork Airport, Kinsale Road
Cork, Ireland.
Tel: +353 21 7305 800
Fax: +353 21 4321 972"
DESCRIPTION
"This MIB manages the FFT software on the Arris CMTS"
::= { cmtsCommon 1 }
dcxFftObjects OBJECT IDENTIFIER ::= { cmtsFftMIB 1 }
dcxFftUpstreamChannelTable OBJECT-TYPE
SYNTAX SEQUENCE OF DcxFftUpstreamChannelEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"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."
::= { dcxFftObjects 1 }
dcxFftUpstreamChannelEntry OBJECT-TYPE
SYNTAX DcxFftUpstreamChannelEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Arris FFT upstream channel entry."
INDEX { ifIndex }
::= { dcxFftUpstreamChannelTable 1 }
DcxFftUpstreamChannelEntry ::= SEQUENCE {
dcxFftSize Unsigned32,
dcxFftSampleRate INTEGER,
dcxFftCentreFrequency Integer32,
dcxFftWindowing INTEGER,
dcxFftLogAveragingTimeConstant Unsigned32,
dcxFftOutputFormat INTEGER,
dcxFftOperatingMode INTEGER,
dcxFftIdleInterval Unsigned32,
dcxFftBurstSid Unsigned32,
dcxFftBurstIUC INTEGER,
dcxFftLogicalChannel INTEGER,
dcxFftTriggerCount Unsigned32,
dcxFftEnable TruthValue,
dcxFftApplyConfig TruthValue,
dcxFftInProgress TruthValue,
dcxFftCurrentTriggers Unsigned32
}
dcxFftSize OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Number of samples to be collected for FFT. Valid
values are 256, 512, 1024, 2048. 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."
DEFVAL { 2048 }
::= { dcxFftUpstreamChannelEntry 1 }
dcxFftSampleRate OBJECT-TYPE
SYNTAX INTEGER { adcRate(1), halfAdcRate(2), quarterAdcRate(3), quadrupleSymbolRate(4) }
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"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."
DEFVAL { halfAdcRate }
::= { dcxFftUpstreamChannelEntry 2 }
dcxFftCentreFrequency OBJECT-TYPE
SYNTAX Integer32
UNITS "hertz"
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"FFT centre frequency. This object is used only if dcxFftSampleRate is set
to halfAdcRate or quarterAdcRate to set the down-mixer frequency."
DEFVAL { 40960000 }
::= { dcxFftUpstreamChannelEntry 3 }
dcxFftWindowing OBJECT-TYPE
SYNTAX INTEGER { rectangular(1), hanning(2), hamming(3), blackman(4), blackmanHarris(5) }
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Set the frequency-domain windowing filter."
DEFVAL { blackmanHarris }
::= { dcxFftUpstreamChannelEntry 4 }
dcxFftLogAveragingTimeConstant OBJECT-TYPE
SYNTAX Unsigned32 (0..7)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Time averaging constant exponent, M. Constant is
2^M. Setting this object to zero disables averaging."
DEFVAL { 0 }
::= { dcxFftUpstreamChannelEntry 5 }
dcxFftOutputFormat OBJECT-TYPE
SYNTAX INTEGER { raw(1), fftIQ(2), fftPower(3), fftAmplitude(4) }
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"FFT processor output format. Format can be i. raw complex
time-domain I/Q format ii. FFT data in I/Q format iii. FFT
data in power format iv. FFT data in amplitude format. The
sample sizes are 4 bytes (i. - iii.) and 2 bytes (iv.)"
DEFVAL { fftAmplitude }
::= { dcxFftUpstreamChannelEntry 6 }
dcxFftOperatingMode OBJECT-TYPE
SYNTAX INTEGER { baseSpectrum(1), burstSpectrum(2), periodicSpectrum(3) }
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"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."
DEFVAL { baseSpectrum }
::= { dcxFftUpstreamChannelEntry 7 }
dcxFftIdleInterval OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"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."
DEFVAL { 50000 }
::= { dcxFftUpstreamChannelEntry 8 }
dcxFftBurstSid OBJECT-TYPE
SYNTAX Unsigned32 (0..16383)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"SID on which to trigger the FFT process. This
object is used only if dcxFftOperatingMode is set
to burstSpectrum."
DEFVAL { 1 }
::= { dcxFftUpstreamChannelEntry 9 }
dcxFftBurstIUC OBJECT-TYPE
SYNTAX INTEGER (0..15)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"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."
DEFVAL { 0 }
::= { dcxFftUpstreamChannelEntry 10 }
dcxFftLogicalChannel OBJECT-TYPE
SYNTAX INTEGER (-1..3)
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"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."
DEFVAL { -1 }
::= { dcxFftUpstreamChannelEntry 11 }
dcxFftTriggerCount OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Number of times to trigger FFT when dcxFftEnable and
dcxFftApplyConfig are set to true. Set this object to
zero to trigger FFT continuously."
DEFVAL { 0 }
::= { dcxFftUpstreamChannelEntry 12 }
dcxFftEnable OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"Set to true to enable FFT on this channel. Set to false to
disable. Setting will take effect when dcxFftApplyConfig is
set to true"
DEFVAL { false }
::= { dcxFftUpstreamChannelEntry 13 }
dcxFftApplyConfig OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-write
STATUS current
DESCRIPTION
"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"
::= { dcxFftUpstreamChannelEntry 14 }
dcxFftInProgress OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"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"
::= { dcxFftUpstreamChannelEntry 15 }
dcxFftCurrentTriggers OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of FFT triggers since the last FFT process was
started."
::= { dcxFftUpstreamChannelEntry 16 }
DcxFftPayloadBuffer ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A buffer that contains upstream FFT payload data."
SYNTAX OCTET STRING (SIZE (0..256))
dcxFftPayloadTable OBJECT-TYPE
SYNTAX SEQUENCE OF DcxFftPayloadEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Arris CMTS FFT upstream channel payload table."
::= { dcxFftObjects 2 }
dcxFftPayloadEntry OBJECT-TYPE
SYNTAX DcxFftPayloadEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"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."
INDEX { ifIndex, dcxFftPayloadIndex }
::= { dcxFftPayloadTable 1 }
DcxFftPayloadEntry ::= SEQUENCE {
dcxFftPayloadIndex Unsigned32,
dcxFftPayloadData DcxFftPayloadBuffer
}
dcxFftPayloadIndex OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An identifier for the 256-byte buffer available
at the dcxFftPayloadData object."
::= { dcxFftPayloadEntry 1 }
dcxFftPayloadData OBJECT-TYPE
SYNTAX DcxFftPayloadBuffer
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The FFT payload data in the buffer identified by
dcxFftPayloadIndex."
::= { dcxFftPayloadEntry 2 }
END
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