CISCO-ATM-QOS-MIB

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Organization: Cisco Systems, Inc.

Last Updated: 2002-06-10

Category: ATM, Quality of Service

Description: Manages ATM quality of service parameters and traffic shaping on Cisco ATM interfaces.

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What Is CISCO-ATM-QOS-MIB?

CISCO-ATM-QOS-MIB is a Cisco-specific module for the ATM (Asynchronous Transfer Mode) networking technology area, originally driven by requirements for the GSR TAZ line card but designed as a generic MIB for ATM interfaces across Cisco platforms. It exposes configuration and status data for Quality of Service parameters on ATM virtual circuits (VCs) and virtual paths (VPs), including traffic shaping rates and per-VC queuing/buffering settings. This makes it useful for monitoring the operational health and performance of ATM QoS enforcement on a device, such as verifying configured peak and sustained cell rates are being honored and that per-VC buffer/queue behavior matches policy, which helps detect misconfiguration or congestion-related service degradation. It builds on the standard ATM-MIB and Cisco's broader ATM interface MIB family for interface indexing and VC/VP identification. It is typically deployed on Cisco ATM switches and ATM-capable routers (such as GSR platforms with ATM line cards) in carrier or enterprise ATM backbone networks. Engineers can download the CISCO-ATM-QOS-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-ATM-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 ATM switches
Cisco routers with ATM interfaces (e.g. GSR with ATM line cards)

Monitoring Examples

An administrator would poll caqVccParamsTable (indexed via caqVccParamsEntry) to check configured peak and sustained cell rate values for a given VC, such as caqVccParamsPcrIn0/caqVccParamsPcrOut0 for incoming/outgoing peak cell rate and caqVccParamsScrIn0/caqVccParamsScrOut0 for sustained cell rate. Comparing caqVccParamsType against the configured service category alongside caqVccParamsBcsIn0 (burst cell size) helps confirm whether a VC's shaping profile matches provisioned traffic contracts. Anomalous or zero values in these objects across many VCs could reveal a QoS misconfiguration or a template applied incorrectly. Notifications surface via ciscoAtmQosMIBNotifs if QoS-related conditions change.

What Can Be Monitored

ATM VC/VP peak cell rate (PCR)
ATM VC/VP sustained cell rate (SCR)
burst cell size
per-VC traffic shaping configuration
per-VC queuing/buffering parameters

Imported Objects

From ATM-FORUM-TC-MIB

AtmServiceCategory

From ATM-MIB

atmVclVci	OBJECT-TYPE
atmVclVpi	OBJECT-TYPE
atmVplVpi	OBJECT-TYPE

From CISCO-SMI

ciscoMgmt

OBJECT-IDENTITY

From IF-MIB

ifIndex

OBJECT-TYPE

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

TEXTUAL-CONVENTION

How to Use in IPNetwork Monitor

Example using caqVpcParamsDataVcCount OID:

Select a Cisco ATM switches/router (QoS) 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 caqVpcParamsDataVcCount into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. It reports the number of data VCs currently associated with the permanent virtual path. 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 an Integer32-type OID, Value bounds is the most useful condition here — trigger an alert if the count changes from its expected baseline, since that would indicate the underlying set of items changed unexpectedly. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
caqQueuingParams	1.3.6.1.4.1.9.9.279.1.3
caqQueuingParamsClassEntry	1.3.6.1.4.1.9.9.279.1.3.2.1		not-accessible	This is defined as an entry in ciscoAtmQosVcQueuingClassTable to provide queuing information of a specific class.
I32 caqQueuingParamsClassIndex	1.3.6.1.4.1.9.9.279.1.3.2.1.1	Integer32	not-accessible	A class index, which associates with an IP precedence (0 to 8), is defined to reference individual caqQueuingParamsClassEntry.
U32 caqQueuingParamsClassMaxThre	1.3.6.1.4.1.9.9.279.1.3.2.1.5	Unsigned32	read-only	Maximum Threshold value in kbps.
U32 caqQueuingParamsClassMinThre	1.3.6.1.4.1.9.9.279.1.3.2.1.4	Unsigned32	read-only	Minimum Threshold value in kbps.
U32 caqQueuingParamsClassMrkProb	1.3.6.1.4.1.9.9.279.1.3.2.1.6	Unsigned32	read-only	Mark probability denominator. This is the value used in the calculation of a packet being dropped when the average queue size is between the minimum threshold and the maximum threshold.
U32 caqQueuingParamsClassRandDrp	1.3.6.1.4.1.9.9.279.1.3.2.1.2	Unsigned32	read-only	Number of packets dropped when Mean Queue Length is between Minimum Threshold and Maximum Threshold range.
caqQueuingParamsClassTable	1.3.6.1.4.1.9.9.279.1.3.2		not-accessible	This table provides queuing information for all queuing classes associating with a VC.
U32 caqQueuingParamsClassTailDrp	1.3.6.1.4.1.9.9.279.1.3.2.1.3	Unsigned32	read-only	Number of packets dropped because the Mean Queue Depth exceeds the Maximum Threshold value.
caqQueuingParamsEntry	1.3.6.1.4.1.9.9.279.1.3.1.1		not-accessible	This is defined as an entry in caqQueuingParamsTable.
U32 caqQueuingParamsMeanQDepth	1.3.6.1.4.1.9.9.279.1.3.1.1.1	Unsigned32	read-only	Mean Queue Depth associated with the vc. This value is calculated based on the actual queue depth on the interface and the exponential weighting constant.
caqQueuingParamsTable	1.3.6.1.4.1.9.9.279.1.3.1		not-accessible	This table provides queuing related information for a VC existing on an ATM interface.
caqVccParams	1.3.6.1.4.1.9.9.279.1.1
U32 caqVccParamsAdtf	1.3.6.1.4.1.9.9.279.1.1.1.1.28	Unsigned32	read-write	Allowed cell rate decrease time factor.
U32 caqVccParamsBcsIn0	1.3.6.1.4.1.9.9.279.1.1.1.1.10	Unsigned32	read-write	Input Burst Cell Size (BCS) for connection with VBR type of QoS and Cell Loss Priority bit set to 0 (clp0).
U32 caqVccParamsBcsIn01	1.3.6.1.4.1.9.9.279.1.1.1.1.11	Unsigned32	read-write	Input Burst Cell Size (BCS) for connection with VBR type of QoS and Cell Loss Priority bit set to 1 (clp01).
U32 caqVccParamsBcsOut0	1.3.6.1.4.1.9.9.279.1.1.1.1.12	Unsigned32	read-write	Output Burst Cell Size (BCS) for connection with VBR type of QoS and Cell Loss Priority bit set to 0 (clp0).
U32 caqVccParamsBcsOut01	1.3.6.1.4.1.9.9.279.1.1.1.1.13	Unsigned32	read-write	Output Burst Cell Size (BCS) for connection with VBR type of QoS and Cell Loss Priority bit set to 1 (clp01).
U32 caqVccParamsCdv	1.3.6.1.4.1.9.9.279.1.1.1.1.20	Unsigned32	read-only	Cell delay variation.
U32 caqVccParamsCdvt	1.3.6.1.4.1.9.9.279.1.1.1.1.21	Unsigned32	read-write	Cell delay variation tolerance.
caqVccParamsEntry	1.3.6.1.4.1.9.9.279.1.1.1.1		not-accessible	This list contains the ATM QoS parameters provided by ciscoAtmQosVccEntry.
U32 caqVccParamsFrtt	1.3.6.1.4.1.9.9.279.1.1.1.1.24	Unsigned32	read-write	Fixed round-trip time.
U32 caqVccParamsIcr	1.3.6.1.4.1.9.9.279.1.1.1.1.22	Unsigned32	read-write	Initial cell rate.
VCP caqVccParamsInheritLevel	1.3.6.1.4.1.9.9.279.1.1.1.1.14	VcParamConfigLocation	read-only	The source of configuration for peak cell rate.
U32 caqVccParamsInvCdf	1.3.6.1.4.1.9.9.279.1.1.1.1.27	Unsigned32	read-write	Inverse of cutoff decrease factor.
U32 caqVccParamsInvRdf	1.3.6.1.4.1.9.9.279.1.1.1.1.17	Unsigned32	read-write	Inverse of rate decrease factor.
U32 caqVccParamsInvRif	1.3.6.1.4.1.9.9.279.1.1.1.1.18	Unsigned32	read-write	Inverse of rate increase factor.
U32 caqVccParamsInvTrm	1.3.6.1.4.1.9.9.279.1.1.1.1.26	Unsigned32	read-write	Maximum time between forward rm cells.
U32 caqVccParamsMcrIn	1.3.6.1.4.1.9.9.279.1.1.1.1.15	Unsigned32	read-write	Input Minimum Cell Rate (MCR) in kbps for connection with VBR-nrt or ABR type of QoS.
U32 caqVccParamsMcrOut	1.3.6.1.4.1.9.9.279.1.1.1.1.16	Unsigned32	read-write	Output Minimum Cell Rate (MCR) in kbps for connection with VBR-nrt or ABR type of QoS.
U32 caqVccParamsNrm	1.3.6.1.4.1.9.9.279.1.1.1.1.25	Unsigned32	read-write	Maximum number of tx cells for each forward rm cell.
U32 caqVccParamsPcrIn0	1.3.6.1.4.1.9.9.279.1.1.1.1.2	Unsigned32	read-write	Input Peak Cell Rate (PCR) in kbps with Cell Loss Priority bit set to 0 (clp0).
U32 caqVccParamsPcrIn01	1.3.6.1.4.1.9.9.279.1.1.1.1.3	Unsigned32	read-write	Number of OAM F5 end to end loopback cells sent through the VCC.
U32 caqVccParamsPcrOut0	1.3.6.1.4.1.9.9.279.1.1.1.1.4	Unsigned32	read-write	Output Peak Cell Rate (PCR) in kbps with Cell Loss Priority bit set to 0 (clp0).
U32 caqVccParamsPcrOut01	1.3.6.1.4.1.9.9.279.1.1.1.1.5	Unsigned32	read-write	Output Peak Cell Rate (PCR) in kbps with Cell Loss Priority bit set to 1 (clp01).
VCP caqVccParamsRfl	1.3.6.1.4.1.9.9.279.1.1.1.1.19	VcParamConfigLocation	read-only	The source of configuration for rate factor.
U32 caqVccParamsScrIn0	1.3.6.1.4.1.9.9.279.1.1.1.1.6	Unsigned32	read-write	Input Sustained Cell Rate (SCR) in kbps for connection with VBR type of QoS and Cell Loss Priority bit set to 0 (clp0).
U32 caqVccParamsScrIn01	1.3.6.1.4.1.9.9.279.1.1.1.1.7	Unsigned32	read-write	Input Sustained Cell Rate (SCR) in kbps for connection with VBR type of QoS and Cell Loss Priority bit set to 1 (clp01).
U32 caqVccParamsScrOut0	1.3.6.1.4.1.9.9.279.1.1.1.1.8	Unsigned32	read-write	Output Sustained Cell Rate (SCR) in kbps for connection with VBR type of QoS and Cell Loss Priority bit set to 0 (clp0).
U32 caqVccParamsScrOut01	1.3.6.1.4.1.9.9.279.1.1.1.1.9	Unsigned32	read-write	Output Sustained Cell Rate (SCR) in kbps for connection with VBR type of QoS and Cell Loss Priority bit set to 1 (clp01).
caqVccParamsTable	1.3.6.1.4.1.9.9.279.1.1.1		not-accessible	This table is defined to provide QoS information for each active ATM VC existing on the interface.
U32 caqVccParamsTbe	1.3.6.1.4.1.9.9.279.1.1.1.1.23	Unsigned32	read-write	Transient buffer exposure.
ATM caqVccParamsType	1.3.6.1.4.1.9.9.279.1.1.1.1.1	AtmServiceCategory	read-write	The service category of this virtual circuit connection.
caqVpcParams	1.3.6.1.4.1.9.9.279.1.2
U32 caqVpcParamsAvailBw	1.3.6.1.4.1.9.9.279.1.2.1.1.10	Unsigned32	read-only	Bandwidth in Kbps currently currently available on this PVP.
U32 caqVpcParamsCesRate	1.3.6.1.4.1.9.9.279.1.2.1.1.3	Unsigned32	read-only	Maximum rate in kbps at which CES VCs can transmit data with the associated permanent virtual path.
I32 caqVpcParamsCesVcCount	1.3.6.1.4.1.9.9.279.1.2.1.1.5	Integer32	read-only	Number of CES VCs currently associated with the permanent virtual path.
I32 caqVpcParamsDataVcCountEx	1.3.6.1.4.1.9.9.279.1.2.1.1.4	Integer32	read-only	Number of data VCs currently associated with the permanent virtual path.
caqVpcParamsEntry	1.3.6.1.4.1.9.9.279.1.2.1.1		not-accessible	This list contains the ATM QoS parameters provided by ciscoAtmQosVpcEntry.
U32 caqVpcParamsMbs	1.3.6.1.4.1.9.9.279.1.2.1.1.9	Unsigned32	read-only	Maximum burst size associated with the PVP.
U32 caqVpcParamsPeakRate	1.3.6.1.4.1.9.9.279.1.2.1.1.2	Unsigned32	read-only	Maximum rate in kbps at which the associated permanent virtual path can transmit data.
U32 caqVpcParamsScr	1.3.6.1.4.1.9.9.279.1.2.1.1.8	Unsigned32	read-only	Sustained cell rate associated with the PVP.
caqVpcParamsTable	1.3.6.1.4.1.9.9.279.1.2.1		not-accessible	This table is defined to provide QoS information for each active ATM VP existing on the interface.
I32 caqVpcParamsVcdF4Ete	1.3.6.1.4.1.9.9.279.1.2.1.1.7	Integer32	read-only	Vcd for F4 OAM end to end processing.
I32 caqVpcParamsVcdF4Seg	1.3.6.1.4.1.9.9.279.1.2.1.1.6	Integer32	read-only	Vcd for F4 OAM segment processing.
VPS caqVpcParamsVpState	1.3.6.1.4.1.9.9.279.1.2.1.1.1	VpState	read-only	VP state of the current permanent virtual path.
ciscoAtmQosMIB	1.3.6.1.4.1.9.9.279			The MIB is created to provide ATM QoS information in these areas: 1. Traffic shaping on a per-VC basis 2. Traffic shaping on a per-VP basis 3. Per-VC queuing/buffering Although the initial requirements of the MIB are driven to support the GSR TAZ line card, CISCO-ATM-QOS-MIB is designed as a generic MIB to support ATM interfaces across all platforms. Here are the tables defined in this MIB: ciscoAtmQosVccTable - to provide information on traffic shaping on a per-VC basis. ciscoAtmQosVpcTable - to provide information on traffic shaping on a per-VP basis. ciscoAtmQosVcQueuingTable ciscoAtmQosVcQueuingClassTable - to provide information on per-VC queuing/buffering.
ciscoAtmQosMIBCompliance	1.3.6.1.4.1.9.9.279.2.1.1			The compliance statement for entities which implement this Cisco ATM QoS MIB.
ciscoAtmQosMIBCompliances	1.3.6.1.4.1.9.9.279.2.1
ciscoAtmQosMIBConform	1.3.6.1.4.1.9.9.279.2
ciscoAtmQosMIBGroups	1.3.6.1.4.1.9.9.279.2.2
ciscoAtmQosMIBNotifs	1.3.6.1.4.1.9.9.279.0
ciscoAtmQosMIBObjects	1.3.6.1.4.1.9.9.279.1
ciscoAtmQosVccAddon1Group	1.3.6.1.4.1.9.9.279.2.2.2			Add-on objects providing per-VC ATM QoS related info.
ciscoAtmQosVccGroup	1.3.6.1.4.1.9.9.279.2.2.1			A collection of objects providing per-VC ATM QoS related info.
ciscoAtmQosVcQueuingGroup	1.3.6.1.4.1.9.9.279.2.2.5			A collection of objects providing per-VC queuing/buffering related info.
ciscoAtmQosVpcAddon1Group	1.3.6.1.4.1.9.9.279.2.2.4			Add-on objects providing per-VP ATM QoS related info.
ciscoAtmQosVpcGroup	1.3.6.1.4.1.9.9.279.2.2.3			A collection of objects providing per-VP ATM QoS related info.

RFC description

Manages ATM QoS including per-VC/VP traffic shaping and per-VC queuing/buffering across Cisco platforms.

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Download CISCO-ATM-QOS-MIB