Enterasys Networks IRM2 manual Collisions

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Alarm Limits

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Figure 5-3. Port Alarm Limits Window

When using the Alarm Limits screens to set your alarm thresholds, keep in mind that repeater-level thresholds will apply to all traffic received by the entire IRM2-managed repeater segment; board-level thresholds will apply only to traffic on the selected board; and port-level thresholds will apply to traffic on the specific port.

The Alarm Limits window displays the following fields:

NOTE

Some IRM2s running older revisions of firmware (version 1.0) will not support all of the alarm fields described below; any fields which appear grayed out are not supported by the modeled device.

Collisions

Use the text box in this field to enter the number of collisions per good packet you wish to allow on the selected repeater, board, or port before an alarm is generated; allowable values are 1-15. For example, if you enter a value of 1, the alarm will be generated if the repeater, board, or port experiences an average of one collision per good packet received during the configured time base (see the explanation for “within,” below). In terms of percentages, an alarm threshold value of 1 would generate an alarm if 50% of your packets were collisions (one collision for every good packet); a threshold value of 15 would generate an alarm if 93.75% of your

5-4	Accessing the Alarm Limits Windows

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Contents IRM2 Users Guide Page Virus Disclaimer Page Restricted Rights Notice Page Contents Chapter Trap Selection StatisticsChapter Redundancy IndexContents Viii Using This Manual IntroductionRelated Manuals IntroductionUsing the Mouse Software ConventionsCommon IRM2 Window Fields Device NameUsing Window Buttons Using On-line Help Getting HelpGetting Help from the Enterasys Global Call Center Hours a day, 365 days a yearIntroduction Getting Help IRM2 Chassis View Viewing Chassis Information Front Panel Information Port Locking/UnlockingConnection Status Port StatusBoot Prom Menu StructureFirmware TimeIRM2 Chassis View Menu Structure Device MenuPort Status Menu View MenuRepeater Menu Help Menu Utilities MenuBoard Menu Port Menus MIM Port Status DisplaysLoad Port Type StatusErrors Physical Chassis View Port Status Color CodesChassis Manager Window Viewing Hardware Types Device TypeSetting the Device Date and Time Managing the HubResetting Device Counters Restarting the DeviceConfiguring the Front Panel Repeater Port Association Repeater Port AssociationSetting a Board Name Enabling BoardsEnabling and Disabling Ports Viewing I/F Summary InformationIndex TypeDescription Physical StatusRaw Counts Rate Viewing Interface DetailError AddressUnicast Non-UnicastUnknown Protocol Received only Packets Received Received onlyTransmit Queue Size Transmit only Packets Transmitted Transmit onlyTesting and Disabling the Current Interface Using the Applications menuStatistics StatisticsAccessing the Statistics Windows StatisticsBytes Statistics DefinedPackets Using the Total and Delta Radio Buttons Hard ErrorsSoft Errors CollisionsTimer Statistics Accessing the Timer Statistics WindowsTo access the port-level Timer Statistics window Setting the Timer Statistics Interval Summary StatisticsAccessing the Summary Statistics Windows Configuring Summary Statistics Accessing the Performance Graph Windows Performance GraphTotal Errors Configuring the Performance Graph Source Address Functions Find Source AddressUsing Port Locking and Unlocking Source Address FunctionsLock/Unlock Ports Window Using Source Addressing Setting the Device Ageing Time Device Ageing Time Window Alarm Limits Accessing the Alarm Limits WindowsAccessing the Alarm Limits Windows Alarm Limits Collisions Errors of Type Broadcast PacketsSetting the Alarm Limits Time Interval Configuring AlarmsWithin Setting Alarm Limits Alarm Interval WindowAlarm Limits Accessing the Trap Selection Windows Trap SelectionTrap Definitions Link State TrapsSegmentation Traps Source Address TrapsConfiguring Traps Accessing the Redundancy Window RedundancyRedundancy Establishing Redundancy Selecting and Naming a CircuitEntering the Physical Addresses of Devices to be Polled Circuit Name WindowAssigning Backup Ports and Port Priority to the Circuit Setting the Polling Interval and Number of Retries Polling Interval WindowActivating the Circuit Testing the Circuits Reconfiguring a Circuit Test Time of Day WindowChanging Port Status Resetting a Circuit Redundancy Reset Warning WindowRedundancy Index Index-2 Index-3 Index Index-4