All MIBs › DOCS-PNM-MIB › docsPnmCmOfdmChEstCoefAmpRippleRms
docsPnmCmOfdmChEstCoefAmpRippleRms
Module: DOCS-PNM-MIB
OID (symbolic): DOCS-PNM-MIB::docsPnmCmOfdmChEstCoefAmpRippleRms
OID (numeric): 1.3.6.1.4.1.4491.2.1.27.1.2.3.1.3
Node type: OBJECT-TYPE
Type: ThousandthdB
Access: read-only
Description: This attribute represents the value of the RMS ripple in the magnitude of the equalizer coefficients. The slope component calculated for the AmplitudeSlope is subtracted from the frequency domain data the RMS Ripple is calculated from the resultant data. This attribute represents the ripple across the entire OFDM channel.
Note: An algorithm for calculating the ripple and slope for these measurements is provided in section D.3 of the the DOCSIS 3.1 CM OSSI Specification.
What is docsPnmCmOfdmChEstCoefAmpRippleRms?
The RMS ripple, in thousandths of a dB, in the magnitude of the downstream equalizer coefficients across the whole OFDM channel, after removing the linear amplitude slope. Gives a statistically smoother summary of channel response flatness than the peak-to-peak ripple figure alone.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.27.1.2.3.1.3 snmpwalk -v2c -c public <target> DOCS-PNM-MIB::docsPnmCmOfdmChEstCoefAmpRippleRms
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.27.1.2.3.1.3.1 snmpget -v2c -c public <target> DOCS-PNM-MIB::docsPnmCmOfdmChEstCoefAmpRippleRms.1
Start monitoring DOCSIS 3.1 cable modem/CMTS (Proactive Network Maintenance, vendor-neutral CableLabs standard) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the DOCS-PNM-MIB::docsPnmCmOfdmChEstCoefAmpRippleRms OID value, configure state conditions and alerts, and monitor any DOCSIS 3.1 cable modem/CMTS (Proactive Network Maintenance, vendor-neutral CableLabs standard) from a single console.
OID Breakdown
Upper-level ancestors (9 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.4491 | cableLabs | CLAB-DEF-MIB |
| 1.3.6.1.4.1.4491.2 | clabProject | CLAB-DEF-MIB |
| 1.3.6.1.4.1.4491.2.1 | clabProjDocsis | CLAB-DEF-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.4491.2.1.27 | docsPnmMIB | DOCS-PNM-MIB |
| 1.3.6.1.4.1.4491.2.1.27.1 | docsPnmMibObjects | DOCS-PNM-MIB |
| 1.3.6.1.4.1.4491.2.1.27.1.2 | docsPnmCmObjects | DOCS-PNM-MIB |
| 1.3.6.1.4.1.4491.2.1.27.1.2.3 | docsPnmCmOfdmChanEstCoefTable | DOCS-PNM-MIB |
| 1.3.6.1.4.1.4491.2.1.27.1.2.3.1 | docsPnmCmOfdmChanEstCoefEntry | DOCS-PNM-MIB |
| 1.3.6.1.4.1.4491.2.1.27.1.2.3.1.3 | docsPnmCmOfdmChEstCoefAmpRippleRms | DOCS-PNM-MIB |