Cabletron Systems BRIM E100 BRIM-E100 - Manual (Page 35)

Chapter 5: Local Management
Page 5-4 BRIM-E100 User’s Guide
Current Operational Mode
Displays the current active technology of the BRIM-E100. In the example
shown in Figure 5-1, 100Base-TXFD (100 Mbps, full duplex) is the
current operational mode.
Desired Operational Mode
This field allows the user to select the desired operational mode. The field
toggles between 100Base-FX and 100Base-FXFD (full duplex) when a
BRIM-E100 with an FE-100FX fiber optic Fast Ethernet Interface
Module is installed.
If an FE-100TX module is installed in the BRIM-E100, the field steps
between Auto-Negotiation, 10Base-T, 10Base-TFD (full duplex),
100Base-TX, and 100Base-TXFD (full duplex). In normal operation, the
BRIM-E100 with an FE-100TX installed is capable of auto-negotiating
the operational mode and no further user setup is required.
Advertised Ability
During auto-negotiation, the FE-100TX “tells” the device at the other end
of the segment what its capabilities are. The capabilities of a BRIM-E100
with an FE-100TX installed are 10Base-T, 10Base-TFD (full duplex),
100Base-TX, and 100Base-TXFD (full duplex). In normal operation,
with all capabilities Enabled, the BRIM-E100 “advertises” that it has the
ability to operate in any mode. The Network Manager may choose to set
up the BRIM-E100 so that only a portion of the available capabilities are
advertised and the others are disabled. For example, only 100Base-TX
and 100Base-TXFD might be enabled so that only devices that operate at
100 Mbps can communicate with the BRIM-E100.
5.3 BRIM-E100 SETUP
This section provides instructions for configuring the BRIM-E100 with
either an FE-100TX module installed or with a fiber optic FE-100FX
module installed.
NOTE
In normal operation, the BRIM-E100 with an FE-100TX
installed automatically establishes a link with the device at the
other end of the segment without requiring user setup.
However, Local Management provides the user with the option
of manually configuring the BRIM-E100.
book Page 4 Friday, April 19, 1996 9:53 AM