All MIBs › DOCS-IF-M-CMTS-MIB › docsIfMCmtsEqamDownstreamCapabModulation
docsIfMCmtsEqamDownstreamCapabModulation
Module: DOCS-IF-M-CMTS-MIB
OID (symbolic): DOCS-IF-M-CMTS-MIB::docsIfMCmtsEqamDownstreamCapabModulation
OID (numeric): 1.3.6.1.4.1.4491.2.1.6.1.3.2.1.4
Node type: OBJECT-TYPE
Type: Bits
Access: read-only
Description: The QAM channel Modulation capabilities. 'eqamDependency' BIT set to '1' indicates the QAM channel modulation value has dependencies with other QAM channels as indicated in docsIfMCmtsEqamGroupDependencyTable.
'qam64' set to '1' indicates 64 QAM modulation support. 'qam256' set to '1' indicates 256 QAM modulation support.
When 'eqamDependency' BIT is set to '1', a set to the modulation PHY parameter of a QAM channels in a dependency group (with docsIfMCmtsEqamGroupDependencyType set to docsPHYParamSameValue), sets the same modulation type to all QAM channels in the dependency group.
What is docsIfMCmtsEqamDownstreamCapabModulation?
Reports which QAM modulation orders this channel supports -- 'qam64' and/or 'qam256' -- along with an 'eqamDependency' bit meaning modulation is locked in step with other channels in its dependency group. An admin checks this before attempting to switch a channel from 256-QAM down to 64-QAM (e.g. to improve robustness), since the change may cascade to grouped channels if the dependency bit is set.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.6.1.3.2.1.4 snmpwalk -v2c -c public <target> DOCS-IF-M-CMTS-MIB::docsIfMCmtsEqamDownstreamCapabModulation
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.6.1.3.2.1.4.1 snmpget -v2c -c public <target> DOCS-IF-M-CMTS-MIB::docsIfMCmtsEqamDownstreamCapabModulation.1
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OID Breakdown
Upper-level ancestors (10 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 |
| 1.3.6.1.4.1.4491.2.1.6 | docsIfMCmtsMib | CLAB-DEF-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.4491.2.1.6.1 | docsIfMCmtsObjects | DOCS-IF-M-CMTS-MIB |
| 1.3.6.1.4.1.4491.2.1.6.1.3 | docsIfMCmtsEqamObjects | DOCS-IF-M-CMTS-MIB |
| 1.3.6.1.4.1.4491.2.1.6.1.3.2 | docsIfMCmtsEqamDownstreamCapabilitiesTable | DOCS-IF-M-CMTS-MIB |
| 1.3.6.1.4.1.4491.2.1.6.1.3.2.1 | docsIfMCmtsEqamDownstreamCapabilitiesEntry | DOCS-IF-M-CMTS-MIB |
| 1.3.6.1.4.1.4491.2.1.6.1.3.2.1.4 | docsIfMCmtsEqamDownstreamCapabModulation | DOCS-IF-M-CMTS-MIB |