All MIBs › CENTILLION-SYSTEM-MONITOR-MIB
Category: ATM, Vendor: Nortel
Description: Tracks system health metrics, including CPU, memory, and hardware status, on Nortel Centillion ATM switch platforms.
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What Is CENTILLION-SYSTEM-MONITOR-MIB?
CENTILLION-SYSTEM-MONITOR-MIB is a vendor-specific MIB for Nortel (Bay Networks) Centillion ATM switch platforms that monitors the health and traffic performance of individual switch cards. It exposes per-card counters for ATM cell reception, transmission, and drops, along with SAR (Segmentation and Reassembly) processing counts and card insertion/removal events. In monitoring terms this MIB is a direct hardware/traffic health monitor for the switch's line cards -- tracking cell drop counts and SAR errors reveals card-level congestion or hardware faults, while card insertion/removal counters help detect unplanned hot-swap events or a flapping card slot. It is a self-contained proprietary MIB specific to the Centillion ATM switching architecture with no apparent dependency on external standard MIBs. It would typically be deployed on Nortel Centillion ATM switches in a legacy ATM backbone requiring per-card performance and stability monitoring. Network engineers evaluating or troubleshooting this functionality can download the CENTILLION-SYSTEM-MONITOR-MIB file directly to load it into their MIB browser.
IPNetwork Monitor allows you to monitor SNMP objects defined in CENTILLION-SYSTEM-MONITOR-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
- Nortel Centillion ATM switch
Monitoring Examples
An administrator would poll cardMonitorTable/cardMonEntry fields cardMonCellsReceived, cardMonCellsTransmitted, and cardMonCellsDropped to compute a per-card cell drop rate, where a rising drop count against steady traffic indicates card congestion or a hardware fault. cardMonSARReceived/cardMonSARTransmitted/cardMonSARDropped would be checked similarly for SAR-layer reassembly errors, which often precede a card failure. cardMonCardInsertions and cardMonCardRemovals let an operator detect an unexpected reseat or flapping card slot that could explain intermittent connectivity issues.
What Can Be Monitored
- cell reception/transmission counts
- cell drop counts
- SAR reassembly counts and drops
- card insertion/removal events
Imported Objects
OIDs
RFC description
Monitors system health including CPU, memory, and hardware status on Nortel Centillion ATM switch platforms.
Start monitoring Nortel/Bay Networks Centillion ATM/LAN switches (legacy) 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.