CISCO-ATM-VIRTUAL-IF-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsCISCO-ATM-VIRTUAL-IF-MIB

Organization: Cisco Systems, Inc.

Last Updated: 2002-10-11

Category: ATM, Network Interfaces

Description: Manages virtual ATM interfaces and subinterface parameters on Cisco ATM devices.

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What Is CISCO-ATM-VIRTUAL-IF-MIB?

CISCO-ATM-VIRTUAL-IF-MIB is a Cisco vendor-specific MIB (under CISCO-SMI/ciscoMgmt) that manages ATM virtual interfaces layered on top of Cisco physical ATM interfaces. Its central caviTable uses RowStatus-driven create/delete semantics (createAndGo) to provision virtual interfaces of type uni or nni, with each created entry producing a corresponding ifTable row of ifType atmVirtual(149); companion tables caviStatEgressTable/caviStatIngressTable and caviEgressIntervalTable/caviIngressIntervalTable then track cumulative and interval-based traffic statistics for those virtual interfaces. It depends on IF-MIB for ifIndex/InterfaceIndex linkage and on ATM-TC-MIB for the AtmVpIdentifier textual convention, tying virtual-interface objects into the standard interface and ATM data models. This makes it useful both for provisioning ATM sub-interfaces remotely and for monitoring their traffic once created, since virtual interfaces don't otherwise appear distinctly in a purely physical-interface view. It is deployed on Cisco IOS routers and ATM switches offering multiple virtual ATM interfaces per physical port, and the CISCO-ATM-VIRTUAL-IF-MIB MIB is the module engineers load to manage this feature.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-ATM-VIRTUAL-IF-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-capable routers/switches (Cisco IOS ATM WAN platforms)

Monitoring Examples

An operator polls caviStatEgressTable and caviStatIngressTable for a provisioned virtual ATM interface's ifIndex; a sudden drop in ingress cell/frame counts while the corresponding caviTable row status remains active would suggest the ATM virtual circuit has stopped receiving traffic despite still being administratively provisioned.

What Can Be Monitored

  • virtual ATM interface creation/row status (caviTable)
  • per-VC egress/ingress interval statistics
  • egress/ingress cumulative statistics counters
  • ATM virtual interface type (UNI/NNI) configuration
  • ifTable linkage for atmVirtual interfaces
Imported Objects

From ATM-TC-MIB

AtmVpIdentifier

From CISCO-SMI

ciscoMgmtOBJECT-IDENTITY

From IF-MIB

InterfaceIndex
ifIndexOBJECT-TYPE

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Counter64
Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

RowStatus

How to Use in IPNetwork Monitor

Example using caviEgrRcvClp0Cells OID:

Select a Cisco ATM-capable routers/switch 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 caviEgrRcvClp0Cells 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. The number of CLP-0 cells received from switch at the traffic management and policing device. 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 Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.
OIDs

RFC description

Manages ATM Virtual interface objects configured on Cisco physical lines with ingress and egress performance counters.

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Download CISCO-ATM-VIRTUAL-IF-MIB