What is the real meaning of RMON rising-threshold value?

eleibowitz · ‎11-13-2008

The CSS command reference for RMON alarm config parameter 'rising-threshold' describes it as, "Threshold for the rising sample type. Enter an integer from 0 to 4294967295." If the RMON alarm type is 'absolute' and the alarm variable is CPU utilization (apChassisMgrExtCpuUtilization), then exactly what does the integer value represent? I assume that since utilization is a percentage, then the highest integer (4294967295) is equal to 100%, the lowest (0) is 0% and all other values are proportional (e.g., 2147483648=50%). Is my assumption correct?

Thanks.

carenas123 · ‎11-19-2008

To set an alarm on any MIB object, use the rmon alarm global configuration command. Use the no form of this command to disable the alarm. rmon alarm number variable interval {delta | absolute} rising-threshold value [event-number] falling-threshold value [event-number] [owner string]

where the rising-thresholdvalue means Value at which the alarm is triggered

eleibowitz · ‎11-19-2008

Thanks, Carlos. I understand the command but the actual value is what is puzzling. Given the range of 0 to 4294967295, what do those values represent? If I am monitoring CPU utilization or memory usage, for example, does 4294967295 mean 100%?