A3COM0028-ALARM-PEAK

Description: Tracks peak alarm thresholds for 3Com RMON probes to detect traffic spikes.

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A3COM0028-ALARM-PEAK is a small private 3Com extension to standard RMON alarm functionality, adding a peak-value tracking capability to RMON alarm entries so that the highest observed value during an alarm's sampling interval is recorded, not just the last sample. It exposes an extension table that augments the standard RMON alarmTable with a peak-value object per alarm entry. Its monitoring purpose is squarely about detecting transient performance anomalies: it lets an operator see the worst-case (peak) traffic or error level a monitored variable reached, catching short-lived spikes that a simple threshold-crossing sample might otherwise miss between polls. It is explicitly an extension of the standard RFC 2819 RMON MIB's alarm mechanism and cannot be used meaningfully without that base RMON alarm configuration in place. It is deployed on 3Com switches with embedded RMON probes used for traffic-spike and threshold-based alarm detection. Engineers can download the A3COM0028-ALARM-PEAK file directly to load it into their MIB browser.

An operator correlates alarmExtTable/alarmExtEntry's alarmPeakValue against the base RMON alarmTable entry it extends, seeing that a monitored interface's error or utilization counter spiked well above the configured alarm threshold momentarily even though the sampled value at alarm-trigger time looked only marginally high. This peak value helps distinguish a brief traffic burst from a sustained overload condition on the monitored port or variable.

3Com RMON alarm extension that tracks peak values for network alarm monitoring and calibration.