DOCS-DRF-MIB :: docsDrfChannelBlockCfgNumberChannels

MIB Reference — IPNetwork Monitor · Updated September 21, 2026

All MIBs › DOCS-DRF-MIB › docsDrfChannelBlockCfgNumberChannels

docsDrfChannelBlockCfgNumberChannels

Module: DOCS-DRF-MIB

OID (symbolic): DOCS-DRF-MIB::docsDrfChannelBlockCfgNumberChannels

OID (numeric): 1.3.6.1.4.1.4491.2.1.23.1.5.1.3

Node type: OBJECT-TYPE

Type: Unsigned32

Access: read-write

Description: The Number of QAM Channels N' to configure for the QAM block.

This number corresponds to the number of channels that are configured to be currently transmitted by the block.

The maximum number of channels per block follows the consideration of maximum number of digital channels in a headend described in the DRFI specification. As a rule N' is valid if it is less than or equal to N. In addition N minimal requirements consist of even numbers and 1 (one QAM channel per Block Channel). Odd number of QAM channels per Block Channel are optional for implementation. A Set to an invalid value or not supported value returns Error 'wrongValue'.

What is docsDrfChannelBlockCfgNumberChannels?

This read-write Unsigned32 value configures the number of QAM channels (N') currently transmitted from a channel block, which must be less than or equal to the hardware maximum reported in docsDrfChannelBlockNumberChannels. An admin provisioning downstream capacity sets this to activate or reduce the number of QAM carriers a block outputs, subject to even-number and single-channel constraints defined by the DRFI specification. Setting this to 4 on a block whose maximum N is 8 configures the block to actively transmit only 4 of its available QAM channels; an unsupported odd value like 3 would return a wrongValue error.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.23.1.5.1.3
snmpwalk -v2c -c public <target> DOCS-DRF-MIB::docsDrfChannelBlockCfgNumberChannels

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.23.1.5.1.3.1
snmpget -v2c -c public <target> DOCS-DRF-MIB::docsDrfChannelBlockCfgNumberChannels.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.4491.2.1.23.1.5.1.3.1 i <value>

Start monitoring CMTS/cable headend edge device (Downstream RF Interface, vendor-neutral CableLabs standard) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the DOCS-DRF-MIB::docsDrfChannelBlockCfgNumberChannels OID value, configure state conditions and alerts, and monitor any CMTS/cable headend edge device (Downstream RF Interface, vendor-neutral CableLabs standard) from a single console.

OID Breakdown

Upper-level ancestors (9 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.4491cableLabsCLAB-DEF-MIB
1.3.6.1.4.1.4491.2clabProjectCLAB-DEF-MIB
1.3.6.1.4.1.4491.2.1clabProjDocsisCLAB-DEF-MIB
Numeric OIDNameModule
1.3.6.1.4.1.4491.2.1.23docsDrfMibDOCS-DRF-MIB
1.3.6.1.4.1.4491.2.1.23.1docsDrfObjectsDOCS-DRF-MIB
1.3.6.1.4.1.4491.2.1.23.1.5docsDrfChannelBlockTableDOCS-DRF-MIB
1.3.6.1.4.1.4491.2.1.23.1.5.1docsDrfChannelBlockEntryDOCS-DRF-MIB
1.3.6.1.4.1.4491.2.1.23.1.5.1.3docsDrfChannelBlockCfgNumberChannelsDOCS-DRF-MIB