All MIBs › DOCS-IF31-MIB › docsIf31CmtsDsOfdmSubcarrierStatusMainModulation
docsIf31CmtsDsOfdmSubcarrierStatusMainModulation
Module: DOCS-IF31-MIB
OID (symbolic): DOCS-IF31-MIB::docsIf31CmtsDsOfdmSubcarrierStatusMainModulation
OID (numeric): 1.3.6.1.4.1.4491.2.1.28.1.21.1.3
Node type: OBJECT-TYPE
Type: DsOfdmModulationType
Access: read-only
Description: This attribute indicates the main modulation order of the subcarriers in the range. In case of skip modulation enabled the MainModulation is the modulation order of the first, the third, the fifth, etc. subcarriers in the range.
What is docsIf31CmtsDsOfdmSubcarrierStatusMainModulation?
Reports the main modulation order (e.g. QPSK through 4096-QAM) used for subcarriers in this group of the downstream OFDM channel; when skip modulation is enabled (see docsIf31CmtsDsOfdmSubcarrierStatusSkip), MainModulation applies to the odd-numbered subcarriers in the range (1st, 3rd, 5th, etc.), alternating with SkipModulation on the even-numbered ones. Admins use this to see the modulation profile actually assigned across a channel's spectrum, useful when correlating throughput with specific frequency ranges.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.28.1.21.1.3 snmpwalk -v2c -c public <target> DOCS-IF31-MIB::docsIf31CmtsDsOfdmSubcarrierStatusMainModulation
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.28.1.21.1.3.1 snmpget -v2c -c public <target> DOCS-IF31-MIB::docsIf31CmtsDsOfdmSubcarrierStatusMainModulation.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 |
|---|---|---|
| 1.3.6.1.4.1.4491.2.1.28 | docsIf31Mib | DOCS-IF31-MIB |
| 1.3.6.1.4.1.4491.2.1.28.1 | docsIf31MibObjects | DOCS-IF31-MIB |
| 1.3.6.1.4.1.4491.2.1.28.1.21 | docsIf31CmtsDsOfdmSubcarrierStatusTable | DOCS-IF31-MIB |
| 1.3.6.1.4.1.4491.2.1.28.1.21.1 | docsIf31CmtsDsOfdmSubcarrierStatusEntry | DOCS-IF31-MIB |
| 1.3.6.1.4.1.4491.2.1.28.1.21.1.3 | docsIf31CmtsDsOfdmSubcarrierStatusMainModulation | DOCS-IF31-MIB |