Intel PRO/100 TX PCI manual Installing Multiple Adapters, Select Duplex Mode optional

Installing Multiple Adapters

All users: The adapter’s 12-digit, hexadecimal Ethernet address is on a sticker near the edge of the adapter. The Ethernet address is sometimes called the node address or the MAC address. Note that the PCI slot number may not correspond with the physical connector in your computer.

NetWare users: The server drivers use the PCI slot number to identify each installed adapter. You can correlate the PCI slot number to the adapter by using the Ethernet address that is printed on a label on the adapter. Run Setup from the Intel disk to view the Ethernet address and slot number for each installed adapter. For more information, see the README files. NetWare 4.11 server installations use unique slot numbers that are assigned during sever setup.

Windows NT and Windows 95 users: Repeat the configuration procedure for each adapter you want to install (add only one adapter at a time). While PROSet can detect all the PRO/100B adapters in your computer, you still need to perform the configuration process on each adapter. In Windows NT, be sure to click the Show all PRO Adapters box in the Configuration window. See the README file for more information.

Select Duplex Mode (optional)

Duplexing is a performance option that lets you choose how the adapter sends and receives data packets over the network. The PRO/100B TX adapter can operate at full duplex only when connected to a full duplex 10BASE-T or 100BASE-TX switching hub. To summarize:

•Auto (requires a full duplex switching hub with auto-negotiation capability). The adapter negotiates with the hub to send and receive packets at the highest rate. This is the default setting. If the hub does not provide auto-negotiation, the adapter runs at half duplex.

•Full duplex (requires a full duplex switching hub). The adapter can send and receive packets at the same time. This mode can increase adapter performance capability. If the full duplex hub provides auto- negotiation, the adapter runs at full duplex. If the full duplex hub does not provide auto-negotiation, you need to set the adapter duplex mode manually (see following paragraphs)

•Half duplex. The adapter performs one operation at a time; it either sends or receives.

If your hub is running at 100 Mbps and half duplex, your potential bandwidth is higher than if you run at 10 Mbps and full duplex.

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