Cabletron Systems 7000 manual Standard Mode, Full Duplex, Configuring Fast Ethernet Ports

The SmartSwitch 7000 Chassis View

Figure 2-12. Port ConÞguration

Note that, if you select the ConÞguration option available for a Fast Ethernet interface, an

TIP entirely different window will appear; see ConÞguring Fast Ethernet Ports, below, for information on conÞguring these ports.

Use the options in this window to select the desired mode:

Standard Mode

In Standard Mode, an interface can only either transmit or receive at any given time, and must wait for one activity to be completed before switching to the next activity (receive or transmit). In this mode, standard wire speeds (10 Mbps for Ethernet, 100 Mbps for FDDI) are available.

Full Duplex

In Full Duplex Mode, an interface can both receive and transmit packets at the same time, effectively doubling the available wire speed to 20 Mbps (for Ethernet) or 200 Mbps (for FDDI).

Be sure to click on to set your changes; note that the interfaceÕs current mode can be determined by the Þeld selected in the window.

Configuring Fast Ethernet Ports

If you have any Fast Ethernet NIMs installed in your SmartSwitch 7000 chassis, the Port ConÞguration window available for those ports allows you to both view and set that portÕs available modes. All 100Base-TX Fast Ethernet ports can be conÞgured to operate in either standard Ethernet (10 Mbps) or Fast Ethernet (100 Mbps) mode, and in each mode can be conÞgured to operate in Full Duplex, effectively doubling the available wire speed (from 10 to 20 Mbps in standard Ethernet mode, or from 100 to 200 Mbps in Fast Ethernet mode); 100Base-FX (Þber) ports can be conÞgured to operate in their standard 100 Mbps mode, or in full duplex mode. This window also displays the mode currently in effect on the selected interface, and provides some information (where it is available) about the interfaceÕs link partner.

2-24 Managing the Hub