Cabletron Systems 42T, MICROMMAC-22T manual Station Address, Stn Edit, Security Mode

LOCAL MANAGEMENT

In Alarm/Remove mode, the MicroMMAC-T sends a “Remove MAC Frame Command” to new stations attempting to enter the ring. A trap sent to the NMS informs it of the action taken. If the Remove MAC Frame Command fails to remove the new station after three attempts, a trap to the NMS informs it that “the station could not be removed.”

The following sections discuss RING SECURITY screen fields and provide instructions for using them.

NOTE: Before enabling ring security, you need to designate which Network Management Stations you wish to receive traps. Refer to Section 4.3.4 for more information.

STATION ADDRESS

This field lists up to 255 MAC addresses on the ring security allowed list.

Stn Edit

Use the Station Edit command to add or delete stations from the allowed list and to edit single entries on the allowed list.

Security Mode

Use this command to set the level of security for the ring. Select from the following Security Modes:

•Disabled - Use this option to temporarily disable ring security so that new stations can enter the ring. This is the factory default setting.

•Alarm Only - In this mode new stations can enter the ring, but the NMS receives a station added trap. The trap includes the new station’s MAC address so that the NMS can decide if the new station should be allowed on the ring.

NOTE: The NMS receives each station added trap once only.

•Alarm/Remove - This is the highest level of ring security and locks the ring to new stations. In Alarm/Remove mode, new stations attempting to enter the ring receive a Remove MAC Frame Command, and a trap informs the NMS of the action taken. The Remove MAC Frame Command tries to automatically remove the station from the ring. If it cannot remove the station from the ring after three attempts,

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