All MIBs › DOCS-DRF-MIB › docsDrfDownstreamCapabInterleaver
docsDrfDownstreamCapabInterleaver
Module: DOCS-DRF-MIB
OID (symbolic): DOCS-DRF-MIB::docsDrfDownstreamCapabInterleaver
OID (numeric): 1.3.6.1.4.1.4491.2.1.23.1.3.1.5
Node type: OBJECT-TYPE
Type: Bits
Access: read-only
Description: The QAM channel Interleaver capabilities. 'qamDependency' BIT set to '1' indicates the QAM channel interleave value has dependencies with other QAM channels as indicated in docsDrfGroupDependencyTable.
'taps8Increment16' set to '1' indicates the support of j = 8, i = 16 interleave.
'taps16Increment8' set to '1' indicates the support of j = 16, i = 8 interleave.
'taps32Increment4' set to '1' indicates the support of j = 32, i = 4 interleave.
'taps64Increment2' set to '1' indicates the support of j = 64, i = 2 interleave.
'taps128Increment1' set to '1' indicates the support of j = 128, i = 1 interleave.
'taps12increment17' set to '1' indicates the support of j = 12, i = 17 interleave.
'taps128increment2' set to '1' indicates the support of j = 128, i = 2 interleave.
'taps128increment3' set to '1' indicates the support of j = 128, i = 3 interleave.
'taps128increment4' set to '1' indicates the support of j = 128, i = 4 interleave.
'taps128increment5' set to '1' indicates the support of j = 128, i = 5 interleave.
'taps128increment6' set to '1' indicates the support of j = 128, i = 6 interleave.
'taps128increment7' set to '1' indicates the support of j = 128, i = 7 interleave.
'taps128increment8' set to '1' indicates the support of j = 128, i = 8 interleave.
When 'qamDependency' BIT is set to '1', a set to the interleave PHY parameter of a QAM channels in a dependency group (with docsDrfGroupDependencyType set to docsDrfPhyParamSameValue), sets the same Interleave value to all QAM channels in the dependency group.
What is docsDrfDownstreamCapabInterleaver?
This BITS value lists which DOCSIS interleaver depth/increment combinations (such as taps8Increment16 or taps128Increment1) the QAM channel supports, plus a qamDependency bit indicating whether interleaver settings are shared with other channels in a group. An admin tuning for latency versus impulse-noise robustness on a plant with burst noise picks a supported interleaver profile, and checks qamDependency to know if that choice also applies to sibling channels. For example, a channel with taps128Increment1 set supports the deepest (j=128, i=1) interleave, which favors error protection at the cost of added latency.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.23.1.3.1.5 snmpwalk -v2c -c public <target> DOCS-DRF-MIB::docsDrfDownstreamCapabInterleaver
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.23.1.3.1.5.1 snmpget -v2c -c public <target> DOCS-DRF-MIB::docsDrfDownstreamCapabInterleaver.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 |
|---|---|---|
| 1.3.6.1.4.1.4491.2.1.23 | docsDrfMib | DOCS-DRF-MIB |
| 1.3.6.1.4.1.4491.2.1.23.1 | docsDrfObjects | DOCS-DRF-MIB |
| 1.3.6.1.4.1.4491.2.1.23.1.3 | docsDrfDownstreamCapabilitiesTable | DOCS-DRF-MIB |
| 1.3.6.1.4.1.4491.2.1.23.1.3.1 | docsDrfDownstreamCapabilitiesEntry | DOCS-DRF-MIB |
| 1.3.6.1.4.1.4491.2.1.23.1.3.1.5 | docsDrfDownstreamCapabInterleaver | DOCS-DRF-MIB |