The best way to resolve memory-address conflicts is to
change the addresses used by the application program or
the device driver. You can use the Configuration/Setup
Utility program to change addresses.
If a device driver is causing a memory-address conflict,
refer to the operating system documentation or the
documentation that comes with the device drivers.
Configuring the ethernet controller
The Netfinity 5500 M20 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 the server. When you
connect the 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 5500 M20
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 the 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.
You must install a device driver to enable the
operating system to address the Ethernet
controller. Use ServerGuide to install this device
driver. Refer to the ServerGuide package for
instructions on installing device drivers.
Fast Ethernet operates at a data rate of 100 Mbps; that is,
ten times faster than standard Ethernet. However, except
for the different operating speeds, Fast Ethernet and
standard Ethernet are structurally identical. Applications
Netfinity 5500 M20 - Type 8662
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