3Com TR Setting Broadcast Storm Control, Rising Threshold%, Falling Threshold%, Rising Action

Models: TR

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To set a Locally Administered Address, take these steps in the Locally Admin. field:

1Enter address in hexadecimal.

This should be between 400000 000000 and

7FFFFF FFFFFF.

2Press [OK].

3Reset the Switch 2000 TR.

NOTE:The Locally Administered address will not be valid until the Switch 2000 TR is reset. Refer to “Resetting the Switch 2000 TR in Chapter 3 for instructions on resetting.

To reverse the Locally Administered address and revert to the resident MAC address enter all zeros and reset the Switch 2000 TR.

Setting Broadcast Storm Control

The Switch 2000 TR automatically creates an alarm on each of its ports for monitoring broadcast levels if an alarm is set. This field allows you to set broadcast threshold levels on each port. You can also set the threshold action per port. Thresholds are calculated using a moving 20 second window.

Rising Threshold%

The Rising threshold percentage setting determines the amount of broadcast traffic that will be allowed before an alarm is sent. The default setting is 60%.

Port Configuration

4-9

Falling Threshold%

The Falling threshold percentage setting determines the level at which the broadcast threshold will be reset. This setting prevents the rising threshold events from being triggered continuously. Events are only enabled after the Falling Threshold is met. The default setting is 50%.

1Set the threshold fields by entering a number between 0 and 99.

2Press [Return].

Rising Action

Use this field to set alarm action for the rising thresh- old. You have the following choices:

None—No action

Event—Event generated for SNMP

Blip—Port disabled, then enabled after 5 seconds

Event+blip—Port disabled, then enabled after 5 seconds and event generated

Falling Action

Use this field to set the action for the falling thresh- old. Choices:

None—No action. Default

Event—Event generated

1Set the action fields by toggling [Space Bar] to the desired threshold actions.

2Press [Return].

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3Com TR manual Setting Broadcast Storm Control, Rising Threshold%, Falling Threshold%, Rising Action, Falling Action