CISCO-ATM-CELL-LAYER-MIB

MIB Reference — IPNetwork Monitor · Updated September 09, 2026

All MIBsCISCO-ATM-CELL-LAYER-MIB

Organization: Cisco Systems, Inc.

Last Updated: 2002-06-28

Category: ATM

Description: Monitors ATM cell layer statistics and physical layer parameters on Cisco ATM interfaces.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

What Is CISCO-ATM-CELL-LAYER-MIB?

CISCO-ATM-CELL-LAYER-MIB is a Cisco enterprise MIB describing ATM cell-layer objects and statistics for a physical ATM line, covering both cell-layer configuration and interval-based error statistics. Its data spans physical-layer configuration (cell header/payload handling, HEC coset, payload scrambling) and performance/fault counters (valid/invalid measurement intervals, received cell counts). Its monitoring emphasis is on physical-link hardware health: caclValidIntervals versus caclInvalidIntervals and the cell-count statistics reveal whether the ATM physical interface is experiencing cell-level errors, directly reflecting line/hardware quality. It complements the standard IETF ATM-MIB (RFC 1695) framework by covering cell-layer detail not present in the base standard. It is used on Cisco routers/switches with ATM physical interfaces in legacy WAN/ATM transport networks, and a CISCO-ATM-CELL-LAYER-MIB download supplies the cell-layer objects needed to track physical-line quality on those interfaces.

IPNetwork Monitor allows you to monitor SNMP objects defined in CISCO-ATM-CELL-LAYER-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 router/switch with ATM physical interfaces

Monitoring Examples

caclStatsTable's caclInRcvCLP0Cells and related counters can be polled per physical line to track normal-priority cell traffic volume, while caclValidIntervals versus caclInvalidIntervals shows how many recent measurement intervals were considered statistically valid. A rising count of invalid intervals, or configuration flags like caclHecCosetEnable/caclPayloadScramblingEnable not matching the far-end setting, would point to a physical-layer cell-alignment problem on that line.

What Can Be Monitored

  • ATM cell-layer configuration (HEC coset, scrambling)
  • valid/invalid statistics intervals
  • received cell counts (CLP0/CLP1)
  • cell-layer error statistics
Imported Objects

From CISCO-SMI

ciscoMgmtOBJECT-IDENTITY

From IF-MIB

ifIndexOBJECT-TYPE

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Counter64
Gauge32
Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

TruthValue

How to Use in IPNetwork Monitor

Example using caclInRcvCLP0Cells OID:

Select a Cisco routers/switches with ATM physical interface 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 caclInRcvCLP0Cells 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 cells received on the interface with CLP0 bit set. 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

ATM cell layer statistics and monitoring for Cisco physical line interfaces.

Start monitoring Cisco routers/switches with ATM physical interfaces with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download CISCO-ATM-CELL-LAYER-MIB