All MIBs › DOCS-PNM-MIB › docsPnmCmtsDsOfdmSymFftLength
docsPnmCmtsDsOfdmSymFftLength
Module: DOCS-PNM-MIB
OID (symbolic): DOCS-PNM-MIB::docsPnmCmtsDsOfdmSymFftLength
OID (numeric): 1.3.6.1.4.1.4491.2.1.27.1.3.1.1.8
Node type: OBJECT-TYPE
Type: Unsigned32
Access: read-only
Description: This attribute is the FFT length in use by the CM for the channel; typically this value is 4096 or 8192 for the Downstream Channel.
What is docsPnmCmtsDsOfdmSymFftLength?
The FFT length (512, 1024, 2048, 4096, or 8192 points) used for this CMTS-side downstream channel capture, typically 4096 or 8192. Needed alongside the sample rate to correctly decode the captured symbol data's frequency-domain structure.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.27.1.3.1.1.8 snmpwalk -v2c -c public <target> DOCS-PNM-MIB::docsPnmCmtsDsOfdmSymFftLength
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.27.1.3.1.1.8.1 snmpget -v2c -c public <target> DOCS-PNM-MIB::docsPnmCmtsDsOfdmSymFftLength.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::docsPnmCmtsDsOfdmSymFftLength 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 |
| 1.3.6.1.4.1.4491.2.1.27.1.3.1 | docsPnmCmtsDsOfdmSymCapTable | DOCS-PNM-MIB |
| 1.3.6.1.4.1.4491.2.1.27.1.3.1.1 | docsPnmCmtsDsOfdmSymCapEntry | DOCS-PNM-MIB |
| 1.3.6.1.4.1.4491.2.1.27.1.3.1.1.8 | docsPnmCmtsDsOfdmSymFftLength | DOCS-PNM-MIB |