CISCO-CATOS-ACL-QOS-MIB

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCISCO-CATOS-ACL-QOS-MIB

Organization: Cisco Systems Inc.

Last Updated: 2007-11-02

Category: Cisco Devices, Quality of Service, VLAN and Bridging, VPN and Security

Description: Manages ACL-based QoS policy configuration on Cisco Catalyst switches running CatOS.

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What Is CISCO-CATOS-ACL-QOS-MIB?

CISCO-CATOS-ACL-QOS-MIB is a Cisco module for the Catalyst 5000/6000 series switches running CatOS, covering Access Control List (ACL)-based Quality of Service and security policy configuration. It exposes configuration data mapping CoS (Class of Service), IP precedence, and DSCP values to each other for QoS marking purposes, along with statistics for Layer 3 QoS enforcement. This supports monitoring the software configuration correctness of QoS/security policy on a switch: an admin can verify that CoS-to-DSCP, IP-precedence-to-DSCP, and DSCP mapping tables reflect the intended marking policy, and pull QoS statistics to confirm traffic is being classified and treated as expected, revealing misclassification or ACL misconfiguration if statistics diverge from policy intent. It is a CatOS-platform-specific module without a clear dependency on another standard MIB, functioning as a self-contained configuration/statistics MIB for that OS. It is deployed on Cisco Catalyst 5000/6000 series switches running CatOS in enterprise networks enforcing QoS and ACL-based traffic policy. Network engineers evaluating or troubleshooting this functionality can download the CISCO-CATOS-ACL-QOS-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-CATOS-ACL-QOS-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

  • Cisco Catalyst 5000/6000 series switches running CatOS

Monitoring Examples

An admin would poll caqCosToDscpTable (via caqCosToDscpEntry) to check that caqCosToDscpCos values map to the intended caqCosToDscpDscp values, and similarly review caqIpPrecToDscpTable's caqIpPrecToDscpIpPrec-to-caqIpPrecToDscpDscp mapping and caqDscpMappingTable's caqDscpMappingDscp-to-caqDscpMappingCos reverse mapping to confirm consistent QoS marking policy across the switch. Divergence between these tables (e.g. a CoS value mapping to an unexpected DSCP) would reveal a QoS misconfiguration likely to cause inconsistent traffic prioritization. caqGlobalObjects and caqInterfaceObjects under ciscoCatOSAclQosMIBObjects would be checked for global vs. per-interface statistics to isolate whether an issue is switch-wide or localized to one interface.

What Can Be Monitored

  • CoS-to-DSCP mapping
  • IP precedence-to-DSCP mapping
  • DSCP-to-CoS mapping
  • Layer 3 QoS statistics
  • per-interface QoS/ACL statistics
Imported Objects

From CISCO-QOS-PIB-MIB

Dscp
Percent
QosInterfaceQueueType
QosLayer2Cos

From CISCO-SMI

ciscoMgmtOBJECT-IDENTITY

From CISCO-SWITCH-ENGINE-MIB

cseFlowDataEntryOBJECT-TYPE

From CISCO-TC

CiscoIpProtocol
CiscoPortList

From CISCO-VTP-MIB

VlanIndex

From HCNUM-TC

CounterBasedGauge64

From IF-MIB

InterfaceIndex
ifIndexOBJECT-TYPE

From INET-ADDRESS-MIB

InetAddress
InetAddressType
InetPortNumber

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Counter64
Gauge32
Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DateAndTime
MacAddress
RowStatus
TEXTUAL-CONVENTION
TruthValue

How to Use in IPNetwork Monitor

Example using caqL3PacketsDropByPolicer OID:

Select a Cisco Catalyst 5000/6000 series switches running CatO (legacy) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type caqL3PacketsDropByPolicer into the Find box to locate it in the OID tree, then select it and click OK. Indicates the number of Layer 3 packets dropped due to policing. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Counter64-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases between polls, since a rising count of errors, failures, or discards often points to a real underlying problem. Click Finish to create the monitor; you can adjust any parameter later.
OIDs

RFC description

Cisco CatOS access control lists and quality-of-service configuration for switches and routers.

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Download CISCO-CATOS-ACL-QOS-MIB