authentication - when a user tries to access the Bridge Module and the IP Address of their workstation or device is not listed in the community table with the proper access (i.e., read_only, read_write).

change - when any configuration or change is made to this concentrator.

hello - when an existing Bridge Module is reset in the concentrator. The alert is sent once every minute until the management workstation acknowledges the Bridge Module or for up to 4 hours and 15 minutes, at which time it shuts off automatically.

The default setting is disable for all three of these parameters. If you enable any of the parameters, an alert message is sent to the trap receiver as defined in the community table.

Note: If you are using an SNMP-based workstation, the workstation must be designated as the trap receiver through the community table (SET COMMUNITY command) for the traps to be sent to the appropriate location.

Alert messages from Spanning Tree configuration changes will always be sent to SNMP-based workstations designated as a trap receiver.

4 - 36 ONline Ethernet Bridge Module Installation and Operation Guide

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3Com 5102B-EE installation and operation guide