RDN-CABLE-SPECTRUM-MIB :: flapCmUpstreamIfIndex

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › RDN-CABLE-SPECTRUM-MIB › flapCmUpstreamIfIndex

flapCmUpstreamIfIndex

Module: RDN-CABLE-SPECTRUM-MIB

OID (symbolic): RDN-CABLE-SPECTRUM-MIB::flapCmUpstreamIfIndex

OID (numeric): 1.3.6.1.4.1.4981.6.1.1.2.1.4

Node type: OBJECT-TYPE

Type: InterfaceIndex

Access: read-only

Description: The ifIndex of the Cable upstream interface whose ifType is docsCableUpstream(129). The CMTS detects a flapping Cable Modem from its Cable upstream interface.

What is flapCmUpstreamIfIndex?

The ifIndex of the upstream cable interface (ifType docsCableUpstream) on which the CMTS detected this modem flapping. Pinpoints which specific upstream channel to investigate for RF issues affecting this modem.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.4981.6.1.1.2.1.4
snmpwalk -v2c -c public <target> RDN-CABLE-SPECTRUM-MIB::flapCmUpstreamIfIndex

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.4981.6.1.1.2.1.4.1
snmpget -v2c -c public <target> RDN-CABLE-SPECTRUM-MIB::flapCmUpstreamIfIndex.1

Start monitoring Motorola/ARRIS CMTS devices with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the RDN-CABLE-SPECTRUM-MIB::flapCmUpstreamIfIndex OID value, configure state conditions and alerts, and monitor any Motorola/ARRIS CMTS devices from a single console.

OID Breakdown

Upper-level ancestors (7 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
1.3.6.1.4.1.4981riverdeltaRDN-MIB
Numeric OIDNameModule
1.3.6.1.4.1.4981.6rdnCableSpectrumRDN-CABLE-SPECTRUM-MIB
1.3.6.1.4.1.4981.6.1rdnCableSpectrumObjectsRDN-CABLE-SPECTRUM-MIB
1.3.6.1.4.1.4981.6.1.1rdnFlapObjectsRDN-CABLE-SPECTRUM-MIB
1.3.6.1.4.1.4981.6.1.1.2rdnFlapCmTableRDN-CABLE-SPECTRUM-MIB
1.3.6.1.4.1.4981.6.1.1.2.1rdnFlapCmEntryRDN-CABLE-SPECTRUM-MIB
1.3.6.1.4.1.4981.6.1.1.2.1.4flapCmUpstreamIfIndexRDN-CABLE-SPECTRUM-MIB