Cabletron Systems 2E43-51R Benutzerhandbuch

Screen Lockout Time (Modifiable)

Contains the maximum number of minutes that the Local Management 
application displays a module’s screen while awaiting input or action 
from a user. For example, if the number 5 is entered in this field, the user 
has up to five minutes to respond to each of the specified module’s Local 
Management screens. 

In this example, after five minutes of “idleness” (no input or action), the 
terminal “beeps” five times, the Local Management application 
terminates the session, and the display returns to the Local Management 
Password screen. To enter a new lockout time, refer to 

Device Uptime (Read-Only)

Displays the total time that the device has been operating.

Operational Mode (Selectable)

Allows the user to set the 2E43-51 so it operates as a an 802.1D switch 
(802.1D SWITCHING), an IEEE 802.1Q switch (802.1Q SWITCHING), 
or a Cabletron Systems SecureFast switch (SECURE FAST VLAN).

In 802.1D SWITCHING mode, the 12 connections on each RJ21 port 
(ENET1 – ENET4) act as repeaters, and may be switched to each other 
and to any Fast Ethernet Interface Module and HSIM port(s) in the 
2E43-51R.

In 802.1Q SWITCHING mode, the device is able to increase its switching 
functionality by creating and maintaining IEEE 802.1Q port based Virtual 
LANs (VLANs).

When the operational mode is set to SECURE FAST VLAN, the device 
acts as a SecureFast switch. With the Cabletron Systems VLAN Manager 
software, the device is able to increase its switching functionality by 
creating and maintaining VLANs.

For details on how to select the Operational Mode, refer to 

. 

Com (Toggle)

Allows the user to enable or disable the COM port. The selection toggles 
between ENABLED and DISABLED. The default is ENABLED. For 
details about setting up the COM port, refer to