Cabletron Systems SmartSTACK ELH100 Installation And User Manual

Contents

9033060 Web-Based Management 83AlarmThe Alarm and Event Groups allow you to record important events orimmediately respond to critical network problems. The Alarm and EventControl Tables are used together to define specific criteria that willgenerate response events. Remember that the Web Agent can onlydisplay control entries. To define a specific entry, you must use third-partynetwork management software. Select “Alarm” then “Alarm Entry” todisplay the items listed in the control table for monitoring.Item DescriptionAlarm Index An index that uniquely identifies an entry in the alarm table.Each such entry defines a diagnostic sample at a particularinterval for an object on the device.Interval Interval in seconds over which the data is sampled andcompared with the rising and falling thresholds.Variable Object identifier of the particular variable to be sampled.Sample Type Method of sampling the selected variable and calculating thevalue to be compared against the thresholds. If the value of thisobject is absoluteValue(1), the value of the selected variablewill be compared directly with the thresholds at the end of thesampling interval. If the value of this object is deltaValue(2), thevalue of the selected variable at the last sample will besubtracted from the current value, and the difference comparedwith the thresholds.Value Value of the statistic during the last sampling period.Startup Alarm If the first sample (after this entry becomes valid) is greater thanor equal to the risingThreshold AND alarmStartupAlarm isequal to risingAlarm(1) or risingOrFallingAlarm(3), then a singlerising alarm will be generated. If the first sample (after this entrybecomes valid) is less than or equal to the fallingThresholdAND alarmStartupAlarm is equal to fallingAlarm(2) orrisingOrFallingAlarm(3), then a single falling alarm will begenerated.Rising Threshold When the current sampled value is greater than or equal to thisthreshold, and the value at the last sampling interval was lessthan this threshold, a single event will be generated. A singleevent will also be generated if the first sample after this entrybecomes valid is greater than or equal to this threshold and theassociated alarmStartupAlarm is equal to risingAlarm(1) orrisingOrFallingAlarm(3). After a rising event is generated,another such event will not be generated until the sampledvalue falls below this threshold and reaches thealarmFallingThreshold.