ARRIS-CMTS-FFT-MIB

File: ARRIS-CMTS-FFT-MIB.mib (14381 bytes)

Imported modules

SNMPv2-SMI SNMPv2-TC SNMPv2-CONF
IF-MIB ARRIS-MIB

Imported symbols

enterprises MODULE-IDENTITY OBJECT-TYPE
Unsigned32 Integer32 TEXTUAL-CONVENTION
TruthValue OBJECT-GROUP MODULE-COMPLIANCE
ifIndex cmtsCommon

Defined Types

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

DcxFftPayloadBuffer  
A buffer that contains upstream FFT payload data.
TEXTUAL-CONVENTION    
  OCTET STRING Size(0..256)  

DcxFftPayloadEntry  
SEQUENCE    
  dcxFftPayloadIndex Unsigned32
  dcxFftPayloadData DcxFftPayloadBuffer

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    

dcxFftObjects 1.3.6.1.4.1.4115.1.4.5.1.1
OBJECT IDENTIFIER    

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.
OBJECT-TYPE    
  SEQUENCE OF  
    DcxFftUpstreamChannelEntry

dcxFftUpstreamChannelEntry 1.3.6.1.4.1.4115.1.4.5.1.1.1.1
Arris FFT upstream channel entry.
OBJECT-TYPE    
  DcxFftUpstreamChannelEntry  

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.
OBJECT-TYPE    
  Unsigned32 256 | 512 | 1024 | 2048 | 4096  

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.
OBJECT-TYPE    
  INTEGER adcRate(1), halfAdcRate(2), quarterAdcRate(3), quadrupleSymbolRate(4), reserved5(5), reserved6(6), reserved7(7), reserved8(8)  

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.
OBJECT-TYPE    
  Integer32 -81920000..81920000  

dcxFftWindowing 1.3.6.1.4.1.4115.1.4.5.1.1.1.1.4
Set the frequency-domain windowing filter.
OBJECT-TYPE    
  INTEGER rectangular(1), hanning(2), hamming(3), blackman(4), blackmanHarris(5)  

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.
OBJECT-TYPE    
  Unsigned32 0..7  

dcxFftOutputFormat 1.3.6.1.4.1.4115.1.4.5.1.1.1.1.6
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.)
OBJECT-TYPE    
  INTEGER raw(1), fftIQ(2), fftPower(3), fftAmplitude(4)  

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.
OBJECT-TYPE    
  INTEGER baseSpectrum(1), burstSpectrum(2), periodicSpectrum(3)  

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.
OBJECT-TYPE    
  Unsigned32  

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.
OBJECT-TYPE    
  Unsigned32 0..16383  

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.
OBJECT-TYPE    
  INTEGER 0..15  

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.
OBJECT-TYPE    
  INTEGER -1..3  

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.
OBJECT-TYPE    
  Unsigned32  

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
OBJECT-TYPE    
  TruthValue  

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
OBJECT-TYPE    
  TruthValue  

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
OBJECT-TYPE    
  TruthValue  

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.
OBJECT-TYPE    
  Unsigned32  

dcxFftPayloadTable 1.3.6.1.4.1.4115.1.4.5.1.1.2
Arris CMTS FFT upstream channel payload table.
OBJECT-TYPE    
  SEQUENCE OF  
    DcxFftPayloadEntry

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.
OBJECT-TYPE    
  DcxFftPayloadEntry  

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.
OBJECT-TYPE    
  Unsigned32  

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.
OBJECT-TYPE    
  DcxFftPayloadBuffer