All MIBs › A3COM0027-RMON-EXTENSIONS
Category: RMON
Description:
Provides 3Com-specific extensions to the standard RMON MIB for enhanced traffic monitoring.
Imported Objects
What Is A3COM0027-RMON-EXTENSIONS?
A3COM0027-RMON-EXTENSIONS is a 3Com private MIB that extends the standard RMON MIB with vendor-specific enhancements to remote traffic monitoring, adding capabilities beyond the base host, alarm, and event groups. Its data categories mirror and extend RMON's: remote polling, extended host statistics, extended alarms, extended events, and extended probe/network configuration. It supports monitoring of hardware/software status indirectly by enhancing traffic and threshold-alarm visibility on 3Com switches/probes, letting operators detect abnormal traffic patterns or threshold crossings beyond what base RMON offers. Loading A3COM0027-RMON-EXTENSIONS in a MIB Browser alongside the base RMON MIB makes it easy to confirm the vendor-specific extension objects resolve correctly before deploying alarm thresholds. It explicitly depends on and extends the standard RFC 2819 RMON MIB, reusing its group structure. Deployment context is 3Com switches and RMON-capable probes in enterprise LAN monitoring deployments.
IPNetwork Monitor allows you to monitor SNMP objects defined in A3COM0027-RMON-EXTENSIONS. 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.
What Can Be Monitored
- extended per-host traffic statistics
- extended alarm thresholds
- extended event configuration
- remote polling configuration
- probe network configuration
Supported Devices
- 3Com managed switch or RMON probe
Monitoring Examples
An operator would use hostExtensions to get enhanced per-host traffic statistics beyond base RMON host counters, and alarmExtensions/eventExtensions to configure additional threshold-based alerts (e.g. finer-grained alarm conditions) tied to custom event actions. remotePoll and probeConfigNetExtensions would be used to configure extended remote-polling behavior and probe network settings, revealing traffic anomalies a standard RMON probe alone might miss.
OIDs
| OID symbolic | OID numeric | Type | Access | Description |
|---|---|---|---|---|
| remotePoll | 1.3.6.1.4.1.43.10.25.1 | |||
| hostExtensions | 1.3.6.1.4.1.43.10.25.2 | |||
| alarmExtensions | 1.3.6.1.4.1.43.10.25.3 | |||
| eventExtensions | 1.3.6.1.4.1.43.10.25.4 | |||
| command | 1.3.6.1.4.1.43.10.25.5 | |||
| probeConfigNetExtensions | 1.3.6.1.4.1.43.10.25.6 |
FAQ
Why would a network admin load A3COM0027-RMON-EXTENSIONS alongside standard RMON on a 3Com switch?
Because it extends RFC 2819 RMON's host, alarm, and event groups with 3Com-specific enhancements -- extended per-host traffic statistics, extended alarm thresholds, and extended event/probe configuration -- giving finer-grained traffic and threshold-alarm visibility than base RMON alone provides.
What kind of problem would this MIB help detect on a 3Com RMON probe?
Using its extended alarm and host-statistics objects, an operator can catch abnormal traffic patterns or threshold crossings on a monitored switch port/probe that base RMON's coarser groups might miss, prompting further investigation into the affected 3Com device.
RFC description
Vendor-private MIB for 3Com Remote Network Monitoring (RMON) extensions.
Start monitoring Legacy 3Com switches/RMON probes 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.