IBM 865741Y Handbook - Page 62

Configuring the Ethernet Controller

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Configuring the Ethernet Controller Note: Start the Configuration/Setup Utility program to view the addresses that are used by your system board functions. The best way to resolve memory-address conflicts is to change the addresses that are used by the application program or the device driver. You can use the Configuration/Setup Utility program to view and change addresses. Configuring the Ethernet Controller Your Netfinity 3500 server comes with an Ethernet controller on the system board. The Ethernet controller provides 10BASE-T and 100BASE-TX support through the RJ-45 connector on the back of your server. When you connect your server to the network, the Ethernet controller automatically detects the data-transfer rate (10 Mbps or 100 Mbps) on the network and then sets the controller to operate at the appropriate rate. That is, the Ethernet controller will adjust to the network data rate, whether the data rate is standard Ethernet (10BASE-T), Fast Ethernet (100BASE-TX), half duplex (HDX), or full duplex (FDX). This process is also known as auto-negotiation. This auto-negotiation occurs without requiring software intervention. The controller supports half-duplex (HDX) and full-duplex (FDX) modes at both speeds. However, auto-negotiation works only if the hub or switch at the other end of the network also supports auto-negotiation. If the hub or switch does not support auto-negotiation, the speed (10 Mbps or 100 Mbps) will still be detected correctly, but half-duplex mode will always be selected. A full-duplex switch that does not support auto-negotiation will not attach to the Netfinity 3500 server in full-duplex mode. In this case, if you want the network to operate in full-duplex mode, you must manually override the settings to obtain a full-duplex connection. Refer to your Ethernet documentation for additional information. Attention: The 10BASE-T Ethernet and the 100BASE-TX Fast Ethernet cabling in the network must be Category 5 or higher to meet various standards, including electromagnetic compatibility. 44 Netfinity 3500 User's Handbook

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Configuring the Ethernet Controller
Note:
Start the Configuration/Setup Utility program to view the
addresses that are used by your system board functions.
The best way to resolve memory-address conflicts is to change the
addresses that are used by the application program or the device
driver.
You can use the Configuration/Setup Utility program to
view and change addresses.
Configuring the Ethernet Controller
Your Netfinity 3500 server comes with an Ethernet controller on the
system board.
The Ethernet controller provides 10BASE-T and
100BASE-TX support through the RJ-45 connector on the back of
your server.
When you connect your server to the network, the
Ethernet controller automatically detects the data-transfer rate (10
Mbps or 100 Mbps) on the network and then sets the controller to
operate at the appropriate rate.
That is, the Ethernet controller will
adjust to the network data rate, whether the data rate is standard
Ethernet (10BASE-T), Fast Ethernet (100BASE-TX), half duplex
(HDX), or full duplex (FDX).
This process is also known as
auto-negotiation.
This auto-negotiation occurs without requiring
software intervention.
The controller supports half-duplex (HDX)
and full-duplex (FDX) modes at both speeds.
However, auto-negotiation works only if the hub or switch at the
other end of the network also supports auto-negotiation.
If the hub
or switch does not support auto-negotiation, the speed (10 Mbps or
100 Mbps) will still be detected correctly, but half-duplex mode will
always be selected.
A full-duplex switch that does not support
auto-negotiation will not attach to the Netfinity 3500 server in
full-duplex mode.
In this case, if you want the network to operate
in full-duplex mode, you must manually override the settings to
obtain a full-duplex connection.
Refer to your Ethernet
documentation for additional information.
Attention:
±
The 10BASE-T Ethernet and the 100BASE-TX Fast Ethernet
cabling in the network must be Category 5 or higher to meet
various standards, including electromagnetic compatibility.
44
Netfinity 3500 User's Handbook