CISCO-CLASS-BASED-QOS-MIB :: cbQosREDTailDropPktOverflow

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCISCO-CLASS-BASED-QOS-MIBcbQosREDTailDropPktOverflow

cbQosREDTailDropPktOverflow

Module: CISCO-CLASS-BASED-QOS-MIB

OID (symbolic): CISCO-CLASS-BASED-QOS-MIB::cbQosREDTailDropPktOverflow

OID (numeric): 1.3.6.1.4.1.9.9.166.1.20.1.1.7

Node type: OBJECT-TYPE

Type: Counter32

Access: read-only

Description: The upper 32 bits count of packets dropped when the number of packets in the associated queue was greater than the maximum threshold.

What is cbQosREDTailDropPktOverflow?

Reports the upper 32 bits of a counter of packets tail-dropped by WRED because the queue depth exceeded the maximum threshold.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.9.166.1.20.1.1.7
snmpwalk -v2c -c public <target> CISCO-CLASS-BASED-QOS-MIB::cbQosREDTailDropPktOverflow

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.9.9.166.1.20.1.1.7.1
snmpget -v2c -c public <target> CISCO-CLASS-BASED-QOS-MIB::cbQosREDTailDropPktOverflow.1

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> cbQosREDTailDropPktOverflow.1

Start monitoring Cisco routers and switches (class-based QoS) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CISCO-CLASS-BASED-QOS-MIB::cbQosREDTailDropPktOverflow OID value, configure state conditions and alerts, and monitor any Cisco routers and switches (class-based QoS) from a single console.

OID Breakdown

Upper-level ancestors (8 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
1.3.6.1.4.1.9ciscoCAT2600-MIB
1.3.6.1.4.1.9.9ciscoMgmtCISCO-SMI
Numeric OIDNameModule
1.3.6.1.4.1.9.9.166ciscoCBQosMIBCISCO-CLASS-BASED-QOS-MIB
1.3.6.1.4.1.9.9.166.1ciscoCBQosMIBObjectsCISCO-CLASS-BASED-QOS-MIB
1.3.6.1.4.1.9.9.166.1.20cbQosREDClassStatsCISCO-CLASS-BASED-QOS-MIB
1.3.6.1.4.1.9.9.166.1.20.1cbQosREDClassStatsTableCISCO-CLASS-BASED-QOS-MIB
1.3.6.1.4.1.9.9.166.1.20.1.1cbQosREDClassStatsEntryCISCO-CLASS-BASED-QOS-MIB
1.3.6.1.4.1.9.9.166.1.20.1.1.7cbQosREDTailDropPktOverflowCISCO-CLASS-BASED-QOS-MIB