Chapter 5: Local Management

Current Oper. Mode (Read-only)

This field displays the current operating mode of ports 25 and 26. Depending on the interface installed (100BASE-FX or 100BASE-TX) this field displays the following:

With a 100BASE-FX interface: 100Base-FXor 100Base-FXFD(full duplex).

With a 100BASE-TX interface: Unknown, 10Base-T, 10Base-TFD(full duplex), 100Base-TX, or 100Base-TXFD(full duplex).

Desired Oper. Mode (Selectable)

This field allows the user to select the desired operational mode for an interface in port 25 or 26. The field toggles between 100BASE-FX and 100BASE-FXFD (full duplex) when an DELFX-UI or DELF3-UI is installed. Section 5.23.1 describes how to configure a port with an DELFX-UI or DELF3-UI.

In normal operation, the port with an DELTX-UI 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 that port.

If an DELTX-UI is installed, the field steps to Auto-Negotiation, 10BASE-T, 10BASE-TFD (full duplex), 100BASE-TX, and 100BASE-TXFD (full duplex). In normal operation, the port with an DELTX-UI installed is capable of auto-negotiating the operational mode and no further user setup is required. Section 5.23.3 describes how to configure an DELTX-UI.

Advertised Ability (Selectable)

During auto-negotiation, the DELTX-UI “tells” the device at the other end of the segment what its capabilities are. The capabilities of a port (25 or

26)with an DELTX-UI installed are 10BASE-T, 10BASE-TFD (full duplex mode), 100BASE-TX and 100BASE-TXFD (full duplex mode). In normal operation, with all capabilities enabled, the DELTX-UI “advertises” that it has the ability to operate in any mode. The Network Manager may choose to set up the port 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

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Cabletron Systems manual 74 DLE22-MA,DLE32-MA,DLE23-MA and DLE33-MA User’s Guide