long as the master RPM had been running long enough to sample all the data. NMS backs up all thelong-term data collection and displays the failover downtime from the performance graph.• Chassis Down — When a chassis goes down, all sampled data is lost. But the RMON configurationsare saved in the configuration file. The sampling process continues after the chassis returns tooperation.• Platform Adaptation — RMON supports all Dell Networking chassis and all Dell Networking Ethernetinterfaces.Setting the RMON AlarmTo set an alarm on any MIB object, use the rmon alarm or rmon hc-alarm command in GLOBALCONFIGURATION mode.• Set an alarm on any MIB object.CONFIGURATION mode[no] rmon alarm number variable interval {delta | absolute} rising-threshold[value event-number] falling-threshold value event-number [owner string]OR[no] rmon hc-alarm number variable interval {delta | absolute} rising-threshold value event-number falling-threshold value event-number [ownerstring]Configure the alarm using the following optional parameters:– number: alarm number, an integer from 1 to 65,535, the value must be unique in the RMON AlarmTable.– variable: the MIB object to monitor — the variable must be in SNMP OID format; for example,1.3.6.1.2.1.1.3. The object type must be a 32-bit integer for the rmon alarm command and 64 bitsfor the rmon hc-alarm command.– interval: time in seconds the alarm monitors the MIB variable, the value must be between 1 to3,600.– delta: tests the change between MIB variables, this option is the alarmSampleType in the RMONAlarm table.– absolute: tests each MIB variable directly, this option is the alarmSampleType in the RMON Alarmtable.– rising-threshold value: value at which the rising-threshold alarm is triggered or reset. Forthe rmon alarm command, this setting is a 32-bits value, for the rmon hc-alarm command, thissetting is a 64-bits value.– event-number: event number to trigger when the rising threshold exceeds its limit. This value isidentical to the alarmRisingEventIndex in the alarmTable of the RMON MIB. If there is nocorresponding rising-threshold event, the value should be zero.– falling-threshold value: value at which the falling-threshold alarm is triggered or reset. Forthe rmon alarm command, this setting is a 32-bits value, for the rmon hc-alarm command thissetting is a 64 bits value.– event-number: event number to trigger when the falling threshold exceeds its limit. This value isidentical to the alarmFallingEventIndex in the alarmTable of the RMON MIB. If there is nocorresponding falling-threshold event, the value should be zero.– owner string: (Optional) specifies an owner for the alarm, this setting is the alarmOwner objectin the alarmTable of the RMON MIB. Default is a null-terminated string.Example of the rmon alarm CommandTo disable the alarm, use the no form of the command.Remote Monitoring (RMON) 757
