DOCS-DRF-MIB :: docsDrfDownstreamCapabServicesTransport

MIB Reference — IPNetwork Monitor · Updated September 21, 2026

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docsDrfDownstreamCapabServicesTransport

Module: DOCS-DRF-MIB

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

OID (numeric): 1.3.6.1.4.1.4491.2.1.23.1.3.1.8

Node type: OBJECT-TYPE

Type: Bits

Access: read-only

Description: The QAM channel Services transports modes Capabilities.

'qamDependency' BIT set to '1' indicates the QAM channel Service transport type has dependencies with other QAM channels as indicated in docsDrfGroupDependencyTable.

'mpeg2OverIP' set to '1' indicates video transports as conventional VoD is supported (known as MPT mode, MPEG-2 transport). 'dmpt' set to 1 indicates DOCSIS MPT mode (D-MPT) support. 'psp' set to 1 indicates DOCSIS Packet Streaming Protocol mode (PSP) support.

When 'qamDependency' BIT is set to '1', a request to set a QAM channel to a service type in a dependency group (with docsDrfGroupDependencyType set to docsDrfPhyParamSameValue) may be rejected.

What is docsDrfDownstreamCapabServicesTransport?

This BITS value reports which downstream transport modes a QAM channel supports for carrying services: MPEG-2-over-IP video transport (mpeg2OverIP), DOCSIS MPT mode (dmpt), or DOCSIS Packet Streaming Protocol mode (psp), plus a qamDependency bit for cross-channel ties. An operator configuring how a QAM channel packages DOCSIS traffic for delivery over the M-CMTS downstream RF interface uses this to pick a transport mode the hardware actually supports. A channel with dmpt set to 1 can be configured for DOCSIS MPT-mode transport, and if qamDependency is also set that transport-mode choice may be rejected when it conflicts with other channels in its dependency group.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.23.1.3.1.8
snmpwalk -v2c -c public <target> DOCS-DRF-MIB::docsDrfDownstreamCapabServicesTransport

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.4491.2.1.23.1.3.1.8.1
snmpget -v2c -c public <target> DOCS-DRF-MIB::docsDrfDownstreamCapabServicesTransport.1

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::docsDrfDownstreamCapabServicesTransport 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
1.3.6.1.4.1.4491.2.1.23.1.3docsDrfDownstreamCapabilitiesTableDOCS-DRF-MIB
1.3.6.1.4.1.4491.2.1.23.1.3.1docsDrfDownstreamCapabilitiesEntryDOCS-DRF-MIB
1.3.6.1.4.1.4491.2.1.23.1.3.1.8docsDrfDownstreamCapabServicesTransportDOCS-DRF-MIB