All MIBs › DOCS-PNM-MIB › docsPnmCmtsUsOfdmaRxMerNumAvgs
docsPnmCmtsUsOfdmaRxMerNumAvgs
Module: DOCS-PNM-MIB
OID (symbolic): DOCS-PNM-MIB::docsPnmCmtsUsOfdmaRxMerNumAvgs
OID (numeric): 1.3.6.1.4.1.4491.2.1.27.1.3.7.1.4
Node type: OBJECT-TYPE
Type: Unsigned32
Access: read-write
Description: This attribute controls the number of probes the CMTS will use to calculate the Rx MER per subcarrier. The average will be computed using the 'leaky integrator' method, where reported Rx MER per subcarrier value = alpha*accumulated values + (1-alpha)*current value. Alpha is one minus the reciprocal of the number of averages. For example, if N=25, then alpha = 0.96. A value of 1 indicates no averaging. Re-writing the number of averages will restart the averaging process. If there are no accumulated values, the accumulators are made equal to the first measured bin amplitudes.
This object cannot be changed while a capture is in progress. It will return a value of 'inconsistentValue' if set while the value of 'docsPnmCmtsUsOfdmaRxMerMeasStatus' is set to a value of 'busy'.
What is docsPnmCmtsUsOfdmaRxMerNumAvgs?
Controls how many probes the CMTS uses to compute the per-subcarrier RxMER using a leaky-integrator averaging method (alpha = 1 - 1/N); a value of 1 disables averaging, and re-writing this restarts the averaging process. Higher averaging counts smooth out probe-to-probe MER variation, giving a steadier per-subcarrier quality picture over time.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.27.1.3.7.1.4 snmpwalk -v2c -c public <target> DOCS-PNM-MIB::docsPnmCmtsUsOfdmaRxMerNumAvgs
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.27.1.3.7.1.4.1 snmpget -v2c -c public <target> DOCS-PNM-MIB::docsPnmCmtsUsOfdmaRxMerNumAvgs.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.4491.2.1.27.1.3.7.1.4.1 i <value>
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::docsPnmCmtsUsOfdmaRxMerNumAvgs 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 |
| 1.3.6.1.4.1.4491.2.1.27.1.3 | docsPnmCmtsObjects | DOCS-PNM-MIB |
| 1.3.6.1.4.1.4491.2.1.27.1.3.7 | docsPnmCmtsUsOfdmaRxMerTable | DOCS-PNM-MIB |
| 1.3.6.1.4.1.4491.2.1.27.1.3.7.1 | docsPnmCmtsUsOfdmaRxMerEntry | DOCS-PNM-MIB |
| 1.3.6.1.4.1.4491.2.1.27.1.3.7.1.4 | docsPnmCmtsUsOfdmaRxMerNumAvgs | DOCS-PNM-MIB |