All MIBs › DOCS-PNM-MIB › docsPnmCmDsOfdmRxMerStdDev
docsPnmCmDsOfdmRxMerStdDev
Module: DOCS-PNM-MIB
OID (symbolic): DOCS-PNM-MIB::docsPnmCmDsOfdmRxMerStdDev
OID (numeric): 1.3.6.1.4.1.4491.2.1.27.1.2.5.1.4
Node type: OBJECT-TYPE
Type: Unsigned32
Access: read-only
Description: This attribute is the standard deviation of the dB values of the RxMER measurements of all active subcarriers. The standard deviation is computed directly on the dB values as follows: StdDev = sqrt(sum of (RxMER dB values - RxMER_mean)^2 / number of RxMER values)
What is docsPnmCmDsOfdmRxMerStdDev?
The standard deviation, in hundredths of a dB, of the RxMER dB values measured across all active downstream subcarriers. A high value indicates uneven MER across the channel (some subcarriers much worse than others), pointing to localized impairments rather than a flat noise floor.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.27.1.2.5.1.4 snmpwalk -v2c -c public <target> DOCS-PNM-MIB::docsPnmCmDsOfdmRxMerStdDev
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.27.1.2.5.1.4.1 snmpget -v2c -c public <target> DOCS-PNM-MIB::docsPnmCmDsOfdmRxMerStdDev.1
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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 |
| 1.3.6.1.4.1.4491.2.1.27.1.2.5 | docsPnmCmDsOfdmRxMerTable | DOCS-PNM-MIB |
| 1.3.6.1.4.1.4491.2.1.27.1.2.5.1 | docsPnmCmDsOfdmRxMerEntry | DOCS-PNM-MIB |
| 1.3.6.1.4.1.4491.2.1.27.1.2.5.1.4 | docsPnmCmDsOfdmRxMerStdDev | DOCS-PNM-MIB |