Cabletron-systems 2000 User Manual download pdf (Page 156)

Managing Ethernet MicroLAN Switches

5-22 Trap Selection

To access the board-level Trap Selection window:

1. Click on the appropriate Module Index to display the Module menu.

2. Select the appropriate repeater channel (A - H) to reveal the board-level

Repeater menu.

3. Click on Trap Selection. The Board Trap Selection window will appear.

To access the port-level Trap Selection window:

1. Click on the appropriate Port index to display the Port menu.

2. Click on Trap Selection. The Port Trap Selection window will appear.

The Board Trap Selection window is similar to the Repeater Trap Selection

window displayed in Figure 5-10, and serves the same function (since, for the

Ethernet MicroLAN Switch, a ÒboardÓ is the equivalent of a repeater channel). If

all port-level trap settings are uniform at the current level of device management

(i.e., a given trap is either set to enabled or disabled for all ports on a repeated

network segment), the check box for a given trap will return with an enabled or

disabled state, as appropriate. If port-level trap settings are mixed at the current

level of management (i.e., a given trap is enabled at some ports and disabled at

other ports on the selected repeater channel), the check box for a given trap will

be grayed, as illustrated above for Link State traps.

When you are changing trap settings at the Repeater or Board level, a check box

that is left gray for a given trap is treated as a ÒNo SETÓ indicator, so that the

current settings at the individual port level with respect to that trap will not be

overridden when you are changing other trap settings.

The Port Trap Selection window is similar to the other Trap Selection windows;

however the gray mixed-mode will never appear when you Þrst open the

window (since at the port-level, a given trap can only be either enabled or

disabled Ð not some combination of the two).

You can change trap settings from any level window; however, if you have

established individual trap settings for any ports, remember that enabling and

disabling traps from the repeater- or module-level windows will override those

individual setting. Remember, too, that setting trap selection state at the repeater

and module levels accomplishes the same thing, as each ÒboardÓ on the Ethernet

MicroLAN Switch is a repeated network.

Trap Deﬁnitions

You can enable or disable the following kinds of traps:

Link State Traps

Some Cabletron Ethernet repeater ports Ð including RJ45 twisted pair and Þber

optic ports Ð generate a link signal to monitor the status of their connection with

the device at the other end of the cable segment. If the cable is removed or broken,

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Cabletron-systems 2000 User Manual Page 156